Release 0.9.10

Fix documentation of serialize_tuple and SerializeTuple

.travis.yml

@@ -1,40 +1,17 @@
+sudo: false
 language: rust
+cache: cargo
+
+# run builds for all the trains (and more)
 rust:
-- stable
-- beta
-- nightly
-- 1.5.0
-addons:
-  apt:
-    packages:
-    - libcurl4-openssl-dev
-    - libelf-dev
-    - libdw-dev
-    - binutils-dev
-before_script:
-- pip install 'travis-cargo<0.2' --user
-- export PATH=$HOME/.local/bin:$PATH
-script:
-- (cd serde && travis-cargo build)
-- (cd serde && travis-cargo test)
-- (cd serde && travis-cargo --only nightly test -- --features nightly-testing)
-- (cd serde && travis-cargo --skip 1.5.0 build -- --no-default-features)
-- (cd serde && travis-cargo --only nightly build -- --no-default-features)
-- (cd serde && travis-cargo --only nightly build -- --no-default-features --features alloc)
-- (cd serde && travis-cargo --only nightly build -- --no-default-features --features collections)
-- (cd serde_tests && travis-cargo test)
-- (cd serde_tests && travis-cargo --only nightly test -- --features nightly-testing)
-- (cd serde_macros && travis-cargo --only nightly test -- --features nightly-testing)
-- (cd serde_macros && travis-cargo --only nightly bench -- --features nightly-testing)
-- (cd serde && travis-cargo --only stable doc)
-- (cd serde_codegen && travis-cargo --only stable doc)
-- (cd serde_macros && travis-cargo --only nightly doc)
-after_success:
-- (cd serde && travis-cargo --only stable doc-upload)
-#- (cd serde_codegen && travis-cargo --only stable doc-upload)
-#- (cd serde_macros && travis-cargo --only nightly doc-upload)
-- (cd serde_tests && travis-cargo coveralls --no-sudo)
-env:
-  global:
-  - TRAVIS_CARGO_NIGHTLY_FEATURE=""
-  - secure: Jcd11Jy0xLyacBUB+oKOaxKBm9iZNInenRDtNBY8GKOtqF5fHUfEjgDf538hwRl5L0FP7DLr8oK0IHmzA7lPjJxlzoKVKV3IM7bRZEYzW5DMonf/lcliuGte7SH0NVFhifM87T8HI2hjGdAb+7+m34siBR7M3AY/XjLInrvUFvY=
+  - 1.13.0
+  - stable
+  - beta
+  - nightly
+
+matrix:
+  include:
+    - rust: nightly
+      env: CLIPPY=true
+
+script: ./travis.sh

CHANGELOG.md

@@ -1,10 +0,0 @@
-## 0.7.6
-
-NOTES:
-
-* Syncs `serde_codegen` and `serde_macros` with rustc 1.10.0-nightly (7bddce693 2016-05-27).
-
-FEATURES:
-
-* `#[serde(serialize_with=..., deserialize_with=...)]` now supports tuples. #335
-* Serde now can be used in `#[no_std]` environments. #316

CONTRIBUTING.md

@@ -0,0 +1,45 @@
+# Contributing to Serde
+
+Serde welcomes contribution from everyone. Here are the guidelines if you are
+thinking of helping us:
+
+## Contributions
+
+Contributions to Serde or its dependencies should be made in the form of GitHub
+pull requests. Each pull request will be reviewed by a core contributor
+(someone with permission to land patches) and either landed in the main tree or
+given feedback for changes that would be required. All contributions should
+follow this format, even those from core contributors.
+
+Should you wish to work on an issue, please claim it first by commenting on
+the GitHub issue that you want to work on it. This is to prevent duplicated
+efforts from contributors on the same issue.
+
+## Pull Request Checklist
+
+- Branch from the master branch and, if needed, rebase to the current master
+  branch before submitting your pull request. If it doesn't merge cleanly with
+  master you may be asked to rebase your changes.
+
+- Commits should be as small as possible, while ensuring that each commit is
+  correct independently (i.e., each commit should compile and pass tests). 
+
+- If your patch is not getting reviewed or you need a specific person to review
+  it, you can @-reply a reviewer asking for a review in the pull request or a
+  comment, or you can ask for a review in `#serde` on `irc.mozilla.org`.
+
+- Add tests relevant to the fixed bug or new feature.
+
+## Conduct
+
+In all Serde-related forums, we follow the [Rust Code of
+Conduct](https://www.rust-lang.org/conduct.html).  For escalation or moderation
+issues, please contact Erick (erick.tryzelaar@gmail.com) instead of the Rust
+moderation team.
+
+## Communication
+
+Beyond opening tickets on the
+[serde-rs/serde](https://github.com/serde-rs/serde) project, Serde contributors
+frequent the `#serde` channel on
+[`irc.mozilla.org`](https://wiki.mozilla.org/IRC).

Cargo.toml

@@ -0,0 +1,9 @@
+[workspace]
+members = [
+    "serde",
+    "serde_codegen_internals",
+    "serde_derive",
+    "serde_test",
+    "test_suite",
+    "test_suite/no_std",
+]

LICENSE

@@ -1,33 +0,0 @@
-See LICENSE-APACHE and LICENSE-MIT.
-
-----
-
-bench_log is derived from https://github.com/cloudflare/goser, which has the
-following license:
-
-Copyright (c) 2013, CloudFlare, Inc.
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-* Redistributions of source code must retain the above copyright
-  notice, this list of conditions and the following disclaimer.
-* Redistributions in binary form must reproduce the above copyright
-  notice, this list of conditions and the following disclaimer in the
-  documentation and/or other materials provided with the distribution.
-* Neither the name of the author nor the
-  names of its contributors may be used to endorse or promote products
-  derived from this software without specific prior written permission.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
-DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-

README.md

@@ -1,50 +1,23 @@
-Serde Rust Serialization Framework
-==================================
+# Serde   [![Build Status](https://api.travis-ci.org/serde-rs/serde.svg?branch=master)](https://travis-ci.org/serde-rs/serde) [![Latest Version](https://img.shields.io/crates/v/serde.svg)](https://crates.io/crates/serde)
 
-[![Build Status](https://api.travis-ci.org/serde-rs/serde.svg?branch=master)](https://travis-ci.org/serde-rs/serde)
-[![Coverage Status](https://coveralls.io/repos/serde-rs/serde/badge.svg?branch=master&service=github)](https://coveralls.io/github/serde-rs/serde?branch=master)
-[![Latest Version](https://img.shields.io/crates/v/serde.svg)](https://crates.io/crates/serde)
-[![Clippy Linting Result](http://clippy.bashy.io/github/serde-rs/serde/master/badge.svg)](http://clippy.bashy.io/github/serde-rs/serde/master/log)
+**Serde is a framework for *ser*ializing and *de*serializing Rust data structures efficiently and generically.**
 
-Serde is a powerful framework that enables serialization libraries to
-generically serialize Rust data structures without the overhead of runtime type
-information. In many situations, the handshake protocol between serializers and
-serializees can be completely optimized away, leaving Serde to perform roughly
-the same speed as a hand written serializer for a specific type.
+---
 
-Documentation is available at:
+You may be looking for:
 
-* [serde](https://serde-rs.github.io/serde/serde/index.html)
+- [An overview of Serde](https://serde.rs/)
+- [Data formats supported by Serde](https://serde.rs/#data-formats)
+- [Setting up `#[derive(Serialize, Deserialize)]`](https://serde.rs/codegen.html)
+- [Examples](https://serde.rs/examples.html)
+- [API documentation](https://docs.serde.rs/serde/)
+- [Release notes](https://github.com/serde-rs/serde/releases)
 
-Using Serde with Nightly Rust and serde\_macros
-===============================================
-
-Here is a simple example that demonstrates how to use Serde by serializing and
-deserializing to JSON. Serde comes with some powerful code generation libraries
-that work with Stable and Nightly Rust that eliminate much of the complexity of
-hand rolling serialization and deserialization for a given type. First lets see
-how we would use Nightly Rust, which is currently a bit simpler than Stable
-Rust:
-
-`Cargo.toml`:
-
-```toml
-[package]
-name = "serde_example_nightly"
-version = "0.1.0"
-authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
-
-[dependencies]
-serde = "*"
-serde_json = "*"
-serde_macros = "*"
-```
-
-`src/main.rs`
+## Serde in action
 
 ```rust
-#![feature(custom_derive, plugin)]
-#![plugin(serde_macros)]
+#[macro_use]
+extern crate serde_derive;
 
 extern crate serde_json;
 
@@ -56,695 +29,43 @@ struct Point {
 
 fn main() {
     let point = Point { x: 1, y: 2 };
+
+    // Convert the Point to a JSON string.
     let serialized = serde_json::to_string(&point).unwrap();
 
-    println!("{}", serialized);
+    // Prints serialized = {"x":1,"y":2}
+    println!("serialized = {}", serialized);
 
+    // Convert the JSON string back to a Point.
     let deserialized: Point = serde_json::from_str(&serialized).unwrap();
 
-    println!("{:?}", deserialized);
+    // Prints deserialized = Point { x: 1, y: 2 }
+    println!("deserialized = {:?}", deserialized);
 }
 ```
 
-When run, it produces:
+## Getting help
 
-```
-% cargo run
-{"x":1,"y":2}
-Point { x: 1, y: 2 }
-```
+Serde developers live in the #serde channel on
+[`irc.mozilla.org`](https://wiki.mozilla.org/IRC). The #rust channel is also a
+good resource with generally faster response time but less specific knowledge
+about Serde. If IRC is not your thing or you don't get a good response, we are
+happy to respond to [GitHub issues](https://github.com/serde-rs/serde/issues/new)
+as well.
 
-Using Serde with Stable Rust, syntex, and serde\_codegen
-========================================================
+## License
 
-Stable Rust is a little more complicated because it does not yet support
-compiler plugins. Instead we need to use the code generation library
-[syntex](https://github.com/serde-rs/syntex) for this:
+Serde is licensed under either of
 
-```toml
-[package]
-name = "serde_example"
-version = "0.1.0"
-authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
-build = "build.rs"
+ * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
+   http://www.apache.org/licenses/LICENSE-2.0)
+ * MIT license ([LICENSE-MIT](LICENSE-MIT) or
+   http://opensource.org/licenses/MIT)
 
-[build-dependencies]
-serde_codegen = "*"
-syntex = "*"
+at your option.
 
-[dependencies]
-serde = "*"
-serde_json = "*"
-```
+### Contribution
 
-`src/main.rs`:
-
-```rust,ignore
-extern crate serde;
-extern crate serde_json;
-
-include!(concat!(env!("OUT_DIR"), "/main.rs"));
-```
-
-`src/main.rs.in`:
-
-```rust,ignore
-#[derive(Serialize, Deserialize, Debug)]
-struct Point {
-    x: i32,
-    y: i32,
-}
-
-fn main() {
-    let point = Point { x: 1, y: 2 };
-    let serialized = serde_json::to_string(&point).unwrap();
-
-    println!("{}", serialized);
-
-    let deserialized: Point = serde_json::from_str(&serialized).unwrap();
-
-    println!("{:?}", deserialized);
-}
-```
-
-`build.rs`
-
-```rust,ignore
-extern crate syntex;
-extern crate serde_codegen;
-
-use std::env;
-use std::path::Path;
-
-pub fn main() {
-    let out_dir = env::var_os("OUT_DIR").unwrap();
-
-    let src = Path::new("src/main.rs.in");
-    let dst = Path::new(&out_dir).join("main.rs");
-
-    let mut registry = syntex::Registry::new();
-
-    serde_codegen::register(&mut registry);
-    registry.expand("", &src, &dst).unwrap();
-}
-```
-
-This also produces:
-
-```
-% cargo run
-{"x":1,"y":2}
-Point { x: 1, y: 2 }
-```
-
-While this works well with Stable Rust, be aware that the error locations
-currently are reported in the generated file instead of in the source file. You
-may find it easier to develop with Nightly Rust and `serde\_macros`, then
-deploy with Stable Rust and `serde_codegen`. It's possible to combine both
-approaches in one setup:
-
-`Cargo.toml`:
-
-```toml
-[package]
-name = "serde_example"
-version = "0.1.0"
-authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
-build = "build.rs"
-
-[features]
-default = ["serde_codegen"]
-nightly = ["serde_macros"]
-
-[build-dependencies]
-serde_codegen = { version = "*", optional = true }
-syntex = "*"
-
-[dependencies]
-serde = "*"
-serde_json = "*"
-serde_macros = { version = "*", optional = true }
-```
-
-`build.rs`:
-
-```rust,ignore
-#[cfg(not(feature = "serde_macros"))]
-mod inner {
-    extern crate syntex;
-    extern crate serde_codegen;
-
-    use std::env;
-    use std::path::Path;
-
-    pub fn main() {
-        let out_dir = env::var_os("OUT_DIR").unwrap();
-
-        let src = Path::new("src/main.rs.in");
-        let dst = Path::new(&out_dir).join("main.rs");
-
-        let mut registry = syntex::Registry::new();
-
-        serde_codegen::register(&mut registry);
-        registry.expand("", &src, &dst).unwrap();
-    }
-}
-
-#[cfg(feature = "serde_macros")]
-mod inner {
-    pub fn main() {}
-}
-
-fn main() {
-    inner::main();
-}
-```
-
-`src/main.rs`:
-
-```rust,ignore
-#![cfg_attr(feature = "serde_macros", feature(custom_derive, plugin))]
-#![cfg_attr(feature = "serde_macros", plugin(serde_macros))]
-
-extern crate serde;
-extern crate serde_json;
-
-#[cfg(feature = "serde_macros")]
-include!("main.rs.in");
-
-#[cfg(not(feature = "serde_macros"))]
-include!(concat!(env!("OUT_DIR"), "/main.rs"));
-```
-
-The `src/main.rs.in` is the same as before.
-
-Then to run with stable:
-
-```
-% cargo build
-...
-```
-
-Or with nightly:
-
-```
-% cargo build --features nightly --no-default-features
-...
-```
-
-Serialization without Macros
-============================
-
-Under the covers, Serde extensively uses the Visitor pattern to thread state
-between the
-[Serializer](http://serde-rs.github.io/serde/serde/serde/ser/trait.Serializer.html)
-and
-[Serialize](http://serde-rs.github.io/serde/serde/serde/ser/trait.Serialize.html)
-without the two having specific information about each other's concrete type.
-This has many of the same benefits as frameworks that use runtime type
-information without the overhead.  In fact, when compiling with optimizations,
-Rust is able to remove most or all the visitor state, and generate code that's
-nearly as fast as a hand written serializer format for a specific type.
-
-To see it in action, lets look at how a simple type like `i32` is serialized.
-The
-[Serializer](http://serde-rs.github.io/serde/serde/serde/ser/trait.Serializer.html)
-is threaded through the type:
-
-```rust,ignore
-impl serde::Serialize for i32 {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: serde::Serializer,
-    {
-        serializer.serialize_i32(*self)
-    }
-}
-```
-
-As you can see it's pretty simple. More complex types like `BTreeMap` need to
-pass a
-[MapVisitor](http://serde-rs.github.io/serde/serde/serde/ser/trait.MapVisitor.html)
-to the 
-[Serializer](http://serde-rs.github.io/serde/serde/serde/ser/trait.Serializer.html)
-in order to walk through the type:
-
-```rust,ignore
-impl<K, V> Serialize for BTreeMap<K, V>
-    where K: Serialize + Ord,
-          V: Serialize,
-{
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_map(MapIteratorVisitor::new(self.iter(), Some(self.len())))
-    }
-}
-
-pub struct MapIteratorVisitor<Iter> {
-    iter: Iter,
-    len: Option<usize>,
-}
-
-impl<K, V, Iter> MapIteratorVisitor<Iter>
-    where Iter: Iterator<Item=(K, V)>
-{
-    #[inline]
-    pub fn new(iter: Iter, len: Option<usize>) -> MapIteratorVisitor<Iter> {
-        MapIteratorVisitor {
-            iter: iter,
-            len: len,
-        }
-    }
-}
-
-impl<K, V, I> MapVisitor for MapIteratorVisitor<I>
-    where K: Serialize,
-          V: Serialize,
-          I: Iterator<Item=(K, V)>,
-{
-    #[inline]
-    fn visit<S>(&mut self, serializer: &mut S) -> Result<Option<()>, S::Error>
-        where S: Serializer,
-    {
-        match self.iter.next() {
-            Some((key, value)) => {
-                let value = try!(serializer.serialize_map_elt(key, value));
-                Ok(Some(value))
-            }
-            None => Ok(None)
-        }
-    }
-
-    #[inline]
-    fn len(&self) -> Option<usize> {
-        self.len
-    }
-}
-```
-
-Serializing structs follow this same pattern. In fact, structs are represented
-as a named map. Its visitor uses a simple state machine to iterate through all
-the fields:
-
-```rust
-extern crate serde;
-extern crate serde_json;
-
-struct Point {
-    x: i32,
-    y: i32,
-}
-
-impl serde::Serialize for Point {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: serde::Serializer
-    {
-        serializer.serialize_struct("Point", PointMapVisitor {
-            value: self,
-            state: 0,
-        })
-    }
-}
-
-struct PointMapVisitor<'a> {
-    value: &'a Point,
-    state: u8,
-}
-
-impl<'a> serde::ser::MapVisitor for PointMapVisitor<'a> {
-    fn visit<S>(&mut self, serializer: &mut S) -> Result<Option<()>, S::Error>
-        where S: serde::Serializer
-    {
-        match self.state {
-            0 => {
-                self.state += 1;
-                Ok(Some(try!(serializer.serialize_struct_elt("x", &self.value.x))))
-            }
-            1 => {
-                self.state += 1;
-                Ok(Some(try!(serializer.serialize_struct_elt("y", &self.value.y))))
-            }
-            _ => {
-                Ok(None)
-            }
-        }
-    }
-}
-
-fn main() {
-    let point = Point { x: 1, y: 2 };
-    let serialized = serde_json::to_string(&point).unwrap();
-
-    println!("{}", serialized);
-}
-```
-
-Deserialization without Macros
-==============================
-
-Deserialization is a little more complicated since there's a bit more error
-handling that needs to occur. Let's start with the simple `i32`
-[Deserialize](http://serde-rs.github.io/serde/serde/serde/de/trait.Deserialize.html)
-implementation. It passes a
-[Visitor](http://serde-rs.github.io/serde/serde/serde/de/trait.Visitor.html) to the
-[Deserializer](http://serde-rs.github.io/serde/serde/serde/de/trait.Deserializer.html).
-The [Visitor](http://serde-rs.github.io/serde/serde/serde/de/trait.Visitor.html)
-can create the `i32` from a variety of different types:
-
-```rust,ignore
-impl Deserialize for i32 {
-    fn deserialize<D>(deserializer: &mut D) -> Result<i32, D::Error>
-        where D: serde::Deserializer,
-    {
-        deserializer.deserialize(I32Visitor)
-    }
-}
-
-struct I32Visitor;
-
-impl serde::de::Visitor for I32Visitor {
-    type Value = i32;
-
-    fn visit_i16<E>(&mut self, value: i16) -> Result<i32, E>
-        where E: Error,
-    {
-        self.visit_i32(value as i32)
-    }
-
-    fn visit_i32<E>(&mut self, value: i32) -> Result<i32, E>
-        where E: Error,
-    {
-        Ok(value)
-    }
-
-    ...
-
-```
-
-Since it's possible for this type to get passed an unexpected type, we need a
-way to error out. This is done by way of the
-[Error](http://serde-rs.github.io/serde/serde/serde/de/trait.Error.html) trait,
-which allows a 
-[Deserialize](http://serde-rs.github.io/serde/serde/serde/de/trait.Deserialize.html)
-to generate an error for a few common error conditions. Here's how it could be used:
-
-```rust,ignore
-    ...
-
-    fn visit_string<E>(&mut self, _: String) -> Result<i32, E>
-        where E: Error,
-    {
-        Err(serde::de::Error::custom("expect a string"))
-    }
-
-    ...
-
-```
-
-Maps follow a similar pattern as before, and use a
-[MapVisitor](http://serde-rs.github.io/serde/serde/serde/de/trait.MapVisitor.html)
-to walk through the values generated by the 
-[Deserializer](http://serde-rs.github.io/serde/serde/serde/de/trait.Deserializer.html).
-
-```rust,ignore
-impl<K, V> serde::Deserialize for BTreeMap<K, V>
-    where K: serde::Deserialize + Eq + Ord,
-          V: serde::Deserialize,
-{
-    fn deserialize<D>(deserializer: &mut D) -> Result<BTreeMap<K, V>, D::Error>
-        where D: serde::Deserializer,
-    {
-        deserializer.deserialize(BTreeMapVisitor::new())
-    }
-}
-
-pub struct BTreeMapVisitor<K, V> {
-    marker: PhantomData<BTreeMap<K, V>>,
-}
-
-impl<K, V> BTreeMapVisitor<K, V> {
-    pub fn new() -> Self {
-        BTreeMapVisitor {
-            marker: PhantomData,
-        }
-    }
-}
-
-impl<K, V> serde::de::Visitor for BTreeMapVisitor<K, V>
-    where K: serde::de::Deserialize + Ord,
-          V: serde::de::Deserialize
-{
-    type Value = BTreeMap<K, V>;
-
-    fn visit_unit<E>(&mut self) -> Result<BTreeMap<K, V>, E>
-        where E: Error,
-    {
-        Ok(BTreeMap::new())
-    }
-
-    fn visit_map<V_>(&mut self, mut visitor: V_) -> Result<BTreeMap<K, V>, V_::Error>
-        where V_: MapVisitor,
-    {
-        let mut values = BTreeMap::new();
-
-        while let Some((key, value)) = try!(visitor.visit()) {
-            values.insert(key, value);
-        }
-
-        try!(visitor.end());
-
-        Ok(values)
-    }
-}
-```
-
-Deserializing structs goes a step further in order to support not allocating a
-`String` to hold the field names. This is done by custom field enum that
-deserializes an enum variant from a string. So for our `Point` example from
-before, we need to generate:
-
-```rust
-extern crate serde;
-extern crate serde_json;
-
-#[derive(Debug)]
-struct Point {
-    x: i32,
-    y: i32,
-}
-
-enum PointField {
-    X,
-    Y,
-}
-
-impl serde::Deserialize for PointField {
-    fn deserialize<D>(deserializer: &mut D) -> Result<PointField, D::Error>
-        where D: serde::de::Deserializer
-    {
-        struct PointFieldVisitor;
-
-        impl serde::de::Visitor for PointFieldVisitor {
-            type Value = PointField;
-
-            fn visit_str<E>(&mut self, value: &str) -> Result<PointField, E>
-                where E: serde::de::Error
-            {
-                match value {
-                    "x" => Ok(PointField::X),
-                    "y" => Ok(PointField::Y),
-                    _ => Err(serde::de::Error::custom("expected x or y")),
-                }
-            }
-        }
-
-        deserializer.deserialize(PointFieldVisitor)
-    }
-}
-
-impl serde::Deserialize for Point {
-    fn deserialize<D>(deserializer: &mut D) -> Result<Point, D::Error>
-        where D: serde::de::Deserializer
-    {
-        static FIELDS: &'static [&'static str] = &["x", "y"];
-        deserializer.deserialize_struct("Point", FIELDS, PointVisitor)
-    }
-}
-
-struct PointVisitor;
-
-impl serde::de::Visitor for PointVisitor {
-    type Value = Point;
-
-    fn visit_map<V>(&mut self, mut visitor: V) -> Result<Point, V::Error>
-        where V: serde::de::MapVisitor
-    {
-        let mut x = None;
-        let mut y = None;
-
-        loop {
-            match try!(visitor.visit_key()) {
-                Some(PointField::X) => { x = Some(try!(visitor.visit_value())); }
-                Some(PointField::Y) => { y = Some(try!(visitor.visit_value())); }
-                None => { break; }
-            }
-        }
-
-        let x = match x {
-            Some(x) => x,
-            None => try!(visitor.missing_field("x")),
-        };
-
-        let y = match y {
-            Some(y) => y,
-            None => try!(visitor.missing_field("y")),
-        };
-
-        try!(visitor.end());
-
-        Ok(Point{ x: x, y: y })
-    }
-}
-
-
-fn main() {
-    let serialized = "{\"x\":1,\"y\":2}";
-
-    let deserialized: Point = serde_json::from_str(&serialized).unwrap();
-
-    println!("{:?}", deserialized);
-}
-```
-
-Design Considerations and tradeoffs for Serializers and Deserializers
-=====================================================================
-
-Serde serialization and deserialization implementations are written in such a
-way that they err on being able to represent more values, and also provide
-better error messages when they are passed an incorrect type to deserialize
-from. For example, by default, it is a syntax error to deserialize a `String`
-into an `Option<String>`. This is implemented such that it is possible to
-distinguish between the values `None` and `Some(())`, if the serialization
-format supports option types.
-
-However, many formats do not have option types, and represents optional values
-as either a `null`, or some other value. Serde `Serializer`s and
-`Deserializer`s can opt-in support for this. For serialization, this is pretty
-easy. Simply implement these methods:
-
-```rust,ignore
-...
-
-    fn visit_none(&mut self) -> Result<(), Self::Error> {
-        self.visit_unit()
-    }
-
-    fn visit_some<T>(&mut self, value: T) -> Result<(), Self::Error> {
-        value.serialize(self)
-    }
-...
-```
-
-For deserialization, this can be implemented by way of the
-`Deserializer::visit_option` hook, which presumes that there is some ability to peek at what is the
-next value in the serialized token stream. This following example is from
-[serde_tests::TokenDeserializer](https://github.com/serde-rs/serde/blob/master/serde_tests/tests/token.rs#L435-L454),
-where it checks to see if the next value is an `Option`, a `()`, or some other
-value:
-
-```rust,ignore
-...
-
-    fn visit_option<V>(&mut self, mut visitor: V) -> Result<V::Value, Error>
-        where V: de::Visitor,
-    {
-        match self.tokens.peek() {
-            Some(&Token::Option(false)) => {
-                self.tokens.next();
-                visitor.visit_none()
-            }
-            Some(&Token::Option(true)) => {
-                self.tokens.next();
-                visitor.visit_some(self)
-            }
-            Some(&Token::Unit) => {
-                self.tokens.next();
-                visitor.visit_none()
-            }
-            Some(_) => visitor.visit_some(self),
-            None => Err(Error::EndOfStreamError),
-        }
-    }
-
-...
-```
-
-Annotations
-===========
-
-`serde_codegen` and `serde_macros` support annotations that help to customize
-how types are serialized. Here are the supported annotations:
-
-Container Annotations:
-
-| Annotation                              | Function                                                                                                                                           |
-| ----------                              | --------                                                                                                                                           |
-| `#[serde(rename="name")]`               | Serialize and deserialize this container with the given name                                                                                       |
-| `#[serde(rename(serialize="name1"))]`   | Serialize this container with the given name                                                                                                       |
-| `#[serde(rename(deserialize="name1"))]` | Deserialize this container with the given name                                                                                                     |
-| `#[serde(deny_unknown_fields)]`         | Always error during serialization when encountering unknown fields. When absent, unknown fields are ignored for self-describing formats like JSON. |
-
-Variant Annotations:
-
-| Annotation                              | Function                                                   |
-| ----------                              | --------                                                   |
-| `#[serde(rename="name")]`               | Serialize and deserialize this variant with the given name |
-| `#[serde(rename(serialize="name1"))]`   | Serialize this variant with the given name                 |
-| `#[serde(rename(deserialize="name1"))]` | Deserialize this variant with the given name               |
-
-Field Annotations:
-
-| Annotation                              | Function                                                                                                            |
-| ----------                              | --------                                                                                                            |
-| `#[serde(rename="name")]`               | Serialize and deserialize this field with the given name                                                            |
-| `#[serde(rename(serialize="name1"))]`   | Serialize this field with the given name                                                                            |
-| `#[serde(rename(deserialize="name1"))]` | Deserialize this field with the given name                                                                          |
-| `#[serde(default)]`                     | If the value is not specified, use the `Default::default()`                                                         |
-| `#[serde(default="$path")]`             | Call the path to a function `fn() -> T` to build the value                                                          |
-| `#[serde(skip_serializing)]`            | Do not serialize this value                                                                                         |
-| `#[serde(skip_deserializing)]`          | Always use `Default::default()` or `#[serde(default="$path")]` instead of deserializing this value                  |
-| `#[serde(skip_serializing_if="$path")]` | Do not serialize this value if this function `fn(&T) -> bool` returns `true`                                        |
-| `#[serde(serialize_with="$path")]`      | Call a function `fn<S>(&T, &mut S) -> Result<(), S::Error> where S: Serializer` to serialize this value of type `T` |
-| `#[serde(deserialize_with="$path")]`    | Call a function `fn<D>(&mut D) -> Result<T, D::Error> where D: Deserializer` to deserialize this value of type `T`  |
-
-Using in `no_std` crates
-========================
-
-The core `serde` package defines a number of features to enable usage in a
-variety of freestanding environments. Enable any or none of the following
-features, and use `default-features = false` in your `Cargo.toml`:
-
-- `alloc` (implies `nightly`)
-- `collections` (implies `alloc` and `nightly`)
-- `std` (default)
-
-If you only use `default-features = false`, you will receive a stock `no_std`
-serde with no support for any of the collection types.
-
-Upgrading from Serde 0.6
-========================
-
-* `#[serde(skip_serializing_if_none)]` was replaced with `#[serde(skip_serializing_if="Option::is_none")]`.
-* `#[serde(skip_serializing_if_empty)]` was replaced with `#[serde(skip_serializing_if="Vec::is_empty")]`.
-
-Serialization Formats Using Serde
-=================================
-
-| Format      | Name                                                 |
-| ------      | ----                                                 |
-| Bincode     | [bincode](https://crates.io/crates/bincode)          |
-| JSON        | [serde\_json](https://crates.io/crates/serde_json)   |
-| MessagePack | [rmp](https://crates.io/crates/rmp)                  |
-| XML         | [serde\_xml](https://github.com/serde-rs/xml)        |
-| YAML        | [serde\_yaml](https://github.com/dtolnay/serde-yaml) |
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in Serde by you, as defined in the Apache-2.0 license, shall be
+dual licensed as above, without any additional terms or conditions.

examples/serde-syntex-example/.gitignore

@@ -1,2 +0,0 @@
-target
-Cargo.lock

examples/serde-syntex-example/Cargo.toml

@@ -1,18 +0,0 @@
-[package]
-name = "serde-syntex-example"
-version = "0.1.0"
-authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
-build = "build.rs"
-
-[features]
-default = ["serde_codegen"]
-nightly = ["serde_macros"]
-
-[build-dependencies]
-serde_codegen = { version = "^0.7.5", optional = true }
-syntex = "^0.32.0"
-
-[dependencies]
-serde = "^0.7.5"
-serde_json = "^0.7.0"
-serde_macros = { version = "^0.7.5", optional = true }

examples/serde-syntex-example/README.md

@@ -1,20 +0,0 @@
-This example demonstrates how to use Serde with Syntex. On stable or nightly
-with Syntex, it can be built with:
-
-```
-% multirust run stable cargo run
-     Running `target/debug/serde-syntex-example`
-{"x":1,"y":2}
-Point { x: 1, y: 2 }
-
-% multirust run nightly cargo run
-     Running `target/debug/serde-syntex-example`
-{"x":1,"y":2}
-Point { x: 1, y: 2 }
-```
-
-On nightly, it can use a plugin with:
-
-```
-% multirust run nightly cargo run --features nightly --no-default-features
-```

examples/serde-syntex-example/build.rs

@@ -1,29 +0,0 @@
-#[cfg(not(feature = "serde_macros"))]
-mod inner {
-    extern crate syntex;
-    extern crate serde_codegen;
-
-    use std::env;
-    use std::path::Path;
-
-    pub fn main() {
-        let out_dir = env::var_os("OUT_DIR").unwrap();
-
-        let src = Path::new("src/main.rs.in");
-        let dst = Path::new(&out_dir).join("main.rs");
-
-        let mut registry = syntex::Registry::new();
-
-        serde_codegen::register(&mut registry);
-        registry.expand("", &src, &dst).unwrap();
-    }
-}
-
-#[cfg(feature = "serde_macros")]
-mod inner {
-    pub fn main() {}
-}
-
-fn main() {
-    inner::main();
-}

examples/serde-syntex-example/src/main.rs

@@ -1,11 +0,0 @@
-#![cfg_attr(nightly, feature(custom_derive, plugin))]
-#![cfg_attr(nightly, plugin(serde_macros))]
-
-extern crate serde;
-extern crate serde_json;
-
-#[cfg(feature = "serde_macros")]
-include!("main.rs.in");
-
-#[cfg(not(feature = "serde_macros"))]
-include!(concat!(env!("OUT_DIR"), "/main.rs"));

examples/serde-syntex-example/src/main.rs.in

@@ -1,16 +0,0 @@
-#[derive(Serialize, Deserialize, Debug)]
-struct Point {
-    x: i32,
-    y: i32,
-}
-
-fn main() {
-    let point = Point { x: 1, y: 2 };
-    let serialized = serde_json::to_string(&point).unwrap();
-
-    println!("{}", serialized);
-
-    let deserialized: Point = serde_json::from_str(&serialized).unwrap();
-
-    println!("{:?}", deserialized);
-}

serde/Cargo.toml

@@ -1,23 +1,34 @@
 [package]
 name = "serde"
-version = "0.7.6"
+version = "0.9.10"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "A generic serialization/deserialization framework"
+homepage = "https://serde.rs"
 repository = "https://github.com/serde-rs/serde"
-documentation = "https://serde-rs.github.io/serde/serde/"
+documentation = "https://docs.serde.rs/serde/"
+keywords = ["serde", "serialization", "no_std"]
+categories = ["encoding"]
 readme = "../README.md"
-keywords = ["serde", "serialization"]
-include = ["Cargo.toml", "src/**/*.rs"]
+include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
+
+[badges]
+travis-ci = { repository = "serde-rs/serde" }
 
 [features]
 default = ["std"]
 
 std = []
-nightly = []
-alloc = ["nightly"]
+unstable = []
+alloc = ["unstable"]
 collections = ["alloc"]
-nightly-testing = ["clippy", "nightly", "std"]
+unstable-testing = ["unstable", "std"]
+
+# to get serde_derive picked up by play.integer32.com
+playground = ["serde_derive"]
 
 [dependencies]
-clippy = { version = "^0.*", optional = true }
+serde_derive = { version = "0.9", optional = true }
+
+[dev-dependencies]
+serde_derive = "0.9"

serde/LICENSE-APACHE

@@ -0,0 +1 @@
+../LICENSE-APACHE

serde/LICENSE-MIT

@@ -0,0 +1 @@
+../LICENSE-MIT

serde/README.md

@@ -0,0 +1 @@
+../README.md

serde/src/bytes.rs

@@ -1,4 +1,20 @@
-//! Helper module to enable serializing bytes more efficiently
+//! Wrapper types to enable optimized handling of `&[u8]` and `Vec<u8>`.
+//!
+//! Without specialization, Rust forces us to treat `&[u8]` just like any other
+//! slice and `Vec<u8>` just like any other vector. In reality this particular
+//! slice and vector can often be serialized and deserialized in a more
+//! efficient, compact representation in many formats.
+//!
+//! When working with such a format, you can opt into specialized handling of
+//! `&[u8]` by wrapping it in `bytes::Bytes` and `Vec<u8>` by wrapping it in
+//! `bytes::ByteBuf`.
+//!
+//! Rust support for specialization is being tracked in
+//! [rust-lang/rust#31844][specialization]. Once it lands in the stable compiler
+//! we will be deprecating these wrapper types in favor of optimizing `&[u8]`
+//! and `Vec<u8>` out of the box.
+//!
+//! [specialization]: https://github.com/rust-lang/rust/issues/31844
 
 use core::{ops, fmt, char, iter, slice};
 use core::fmt::Write;
@@ -6,19 +22,48 @@ use core::fmt::Write;
 use ser;
 
 #[cfg(any(feature = "std", feature = "collections"))]
-pub use self::bytebuf::{ByteBuf, ByteBufVisitor};
+pub use self::bytebuf::ByteBuf;
+
+#[cfg(any(feature = "std", feature = "collections"))]
+#[doc(hidden)] // does anybody need this?
+pub use self::bytebuf::ByteBufVisitor;
 
 #[cfg(feature = "collections")]
 use collections::Vec;
 
 ///////////////////////////////////////////////////////////////////////////////
 
-/// `Bytes` wraps a `&[u8]` in order to serialize into a byte array.
+/// Wraps a `&[u8]` in order to serialize in an efficient way. Does not support
+/// deserialization.
+///
+/// ```rust
+/// # #[macro_use] extern crate serde_derive;
+/// # extern crate serde;
+/// # use std::net::IpAddr;
+/// #
+/// use serde::bytes::Bytes;
+///
+/// # #[allow(dead_code)]
+/// #[derive(Serialize)]
+/// struct Packet<'a> {
+///     destination: IpAddr,
+///     payload: Bytes<'a>,
+/// }
+/// #
+/// # fn main() {}
+/// ```
 #[derive(Clone, Copy, Eq, Hash, PartialEq, PartialOrd, Ord)]
 pub struct Bytes<'a> {
     bytes: &'a [u8],
 }
 
+impl<'a> Bytes<'a> {
+    /// Wrap an existing `&[u8]`.
+    pub fn new(bytes: &'a [u8]) -> Self {
+        Bytes { bytes: bytes }
+    }
+}
+
 impl<'a> fmt::Debug for Bytes<'a> {
     fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
         try!(f.write_str("b\""));
@@ -31,18 +76,14 @@ impl<'a> fmt::Debug for Bytes<'a> {
 
 impl<'a> From<&'a [u8]> for Bytes<'a> {
     fn from(bytes: &'a [u8]) -> Self {
-        Bytes {
-            bytes: bytes,
-        }
+        Bytes::new(bytes)
     }
 }
 
 #[cfg(any(feature = "std", feature = "collections"))]
 impl<'a> From<&'a Vec<u8>> for Bytes<'a> {
     fn from(bytes: &'a Vec<u8>) -> Self {
-        Bytes {
-            bytes: bytes,
-        }
+        Bytes::new(bytes)
     }
 }
 
@@ -55,12 +96,14 @@ impl<'a> Into<&'a [u8]> for Bytes<'a> {
 impl<'a> ops::Deref for Bytes<'a> {
     type Target = [u8];
 
-    fn deref(&self) -> &[u8] { self.bytes }
+    fn deref(&self) -> &[u8] {
+        self.bytes
+    }
 }
 
 impl<'a> ser::Serialize for Bytes<'a> {
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
         where S: ser::Serializer
     {
         serializer.serialize_bytes(self.bytes)
@@ -71,6 +114,7 @@ impl<'a> ser::Serialize for Bytes<'a> {
 
 #[cfg(any(feature = "std", feature = "collections"))]
 mod bytebuf {
+    use core::cmp;
     use core::ops;
     use core::fmt;
     use core::fmt::Write;
@@ -79,9 +123,27 @@ mod bytebuf {
     use de;
 
     #[cfg(feature = "collections")]
-    use collections::Vec;
+    use collections::{String, Vec};
 
-    /// `ByteBuf` wraps a `Vec<u8>` and serializes as a byte array.
+    /// Wraps a `Vec<u8>` in order to serialize and deserialize in an efficient
+    /// way.
+    ///
+    /// ```rust
+    /// # #[macro_use] extern crate serde_derive;
+    /// # extern crate serde;
+    /// # use std::net::IpAddr;
+    /// #
+    /// use serde::bytes::ByteBuf;
+    ///
+    /// # #[allow(dead_code)]
+    /// #[derive(Serialize, Deserialize)]
+    /// struct Packet {
+    ///     destination: IpAddr,
+    ///     payload: ByteBuf,
+    /// }
+    /// #
+    /// # fn main() {}
+    /// ```
     #[derive(Clone, Default, Eq, Hash, PartialEq, PartialOrd, Ord)]
     pub struct ByteBuf {
         bytes: Vec<u8>,
@@ -90,16 +152,17 @@ mod bytebuf {
     impl ByteBuf {
         /// Construct a new, empty `ByteBuf`.
         pub fn new() -> Self {
-            ByteBuf {
-                bytes: Vec::new(),
-            }
+            ByteBuf::from(Vec::new())
         }
 
         /// Construct a new, empty `ByteBuf` with the specified capacity.
         pub fn with_capacity(cap: usize) -> Self {
-            ByteBuf {
-                bytes: Vec::with_capacity(cap)
-            }
+            ByteBuf::from(Vec::with_capacity(cap))
+        }
+
+        /// Wrap existing bytes in a `ByteBuf`.
+        pub fn from<T: Into<Vec<u8>>>(bytes: T) -> Self {
+            ByteBuf { bytes: bytes.into() }
         }
     }
 
@@ -121,9 +184,7 @@ mod bytebuf {
 
     impl From<Vec<u8>> for ByteBuf {
         fn from(bytes: Vec<u8>) -> Self {
-            ByteBuf {
-                bytes: bytes,
-            }
+            ByteBuf::from(bytes)
         }
     }
 
@@ -154,15 +215,19 @@ mod bytebuf {
     impl ops::Deref for ByteBuf {
         type Target = [u8];
 
-        fn deref(&self) -> &[u8] { &self.bytes[..] }
+        fn deref(&self) -> &[u8] {
+            &self.bytes[..]
+        }
     }
 
     impl ops::DerefMut for ByteBuf {
-        fn deref_mut(&mut self) -> &mut [u8] { &mut self.bytes[..] }
+        fn deref_mut(&mut self) -> &mut [u8] {
+            &mut self.bytes[..]
+        }
     }
 
     impl ser::Serialize for ByteBuf {
-        fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
+        fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
             where S: ser::Serializer
         {
             serializer.serialize_bytes(self)
@@ -175,56 +240,64 @@ mod bytebuf {
     impl de::Visitor for ByteBufVisitor {
         type Value = ByteBuf;
 
-        #[inline]
-        fn visit_unit<E>(&mut self) -> Result<ByteBuf, E>
-            where E: de::Error,
-        {
-            Ok(ByteBuf {
-                bytes: Vec::new(),
-            })
+        fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+            formatter.write_str("byte array")
         }
 
         #[inline]
-        fn visit_seq<V>(&mut self, mut visitor: V) -> Result<ByteBuf, V::Error>
-            where V: de::SeqVisitor,
+        fn visit_unit<E>(self) -> Result<ByteBuf, E>
+            where E: de::Error
         {
-            let (len, _) = visitor.size_hint();
+            Ok(ByteBuf::new())
+        }
+
+        #[inline]
+        fn visit_seq<V>(self, mut visitor: V) -> Result<ByteBuf, V::Error>
+            where V: de::SeqVisitor
+        {
+            let len = cmp::min(visitor.size_hint().0, 4096);
             let mut values = Vec::with_capacity(len);
 
             while let Some(value) = try!(visitor.visit()) {
                 values.push(value);
             }
 
-            try!(visitor.end());
-
-            Ok(ByteBuf {
-                bytes: values,
-            })
+            Ok(ByteBuf::from(values))
         }
 
         #[inline]
-        fn visit_bytes<E>(&mut self, v: &[u8]) -> Result<ByteBuf, E>
-            where E: de::Error,
+        fn visit_bytes<E>(self, v: &[u8]) -> Result<ByteBuf, E>
+            where E: de::Error
         {
-            self.visit_byte_buf(v.to_vec())
+            Ok(ByteBuf::from(v))
         }
 
         #[inline]
-        fn visit_byte_buf<E>(&mut self, v: Vec<u8>) -> Result<ByteBuf, E>
-            where E: de::Error,
+        fn visit_byte_buf<E>(self, v: Vec<u8>) -> Result<ByteBuf, E>
+            where E: de::Error
         {
-            Ok(ByteBuf {
-                bytes: v,
-            })
+            Ok(ByteBuf::from(v))
+        }
+
+        fn visit_str<E>(self, v: &str) -> Result<ByteBuf, E>
+            where E: de::Error
+        {
+            Ok(ByteBuf::from(v))
+        }
+
+        fn visit_string<E>(self, v: String) -> Result<ByteBuf, E>
+            where E: de::Error
+        {
+            Ok(ByteBuf::from(v))
         }
     }
 
     impl de::Deserialize for ByteBuf {
         #[inline]
-        fn deserialize<D>(deserializer: &mut D) -> Result<ByteBuf, D::Error>
+        fn deserialize<D>(deserializer: D) -> Result<ByteBuf, D::Error>
             where D: de::Deserializer
         {
-            deserializer.deserialize_bytes(ByteBufVisitor)
+            deserializer.deserialize_byte_buf(ByteBufVisitor)
         }
     }
 }
@@ -232,7 +305,9 @@ mod bytebuf {
 ///////////////////////////////////////////////////////////////////////////////
 
 #[inline]
-fn escape_bytestring<'a>(bytes: &'a [u8]) -> iter::FlatMap<slice::Iter<'a, u8>, char::EscapeDefault, fn(&u8) -> char::EscapeDefault> {
+fn escape_bytestring<'a>
+    (bytes: &'a [u8])
+     -> iter::FlatMap<slice::Iter<'a, u8>, char::EscapeDefault, fn(&u8) -> char::EscapeDefault> {
     fn f(b: &u8) -> char::EscapeDefault {
         char::from_u32(*b as u32).unwrap().escape_default()
     }

serde/src/de/private.rs

@@ -0,0 +1,44 @@
+use core::marker::PhantomData;
+
+use de::{Deserialize, Deserializer, Error, Visitor};
+
+#[cfg(any(feature = "std", feature = "collections"))]
+pub use de::content::{Content, ContentRefDeserializer, ContentDeserializer, TaggedContentVisitor,
+                      TagOrContentField, TagOrContentFieldVisitor, InternallyTaggedUnitVisitor,
+                      UntaggedUnitVisitor};
+
+/// If the missing field is of type `Option<T>` then treat is as `None`,
+/// otherwise it is an error.
+pub fn missing_field<V, E>(field: &'static str) -> Result<V, E>
+    where V: Deserialize,
+          E: Error
+{
+    struct MissingFieldDeserializer<E>(&'static str, PhantomData<E>);
+
+    impl<E> Deserializer for MissingFieldDeserializer<E>
+        where E: Error
+    {
+        type Error = E;
+
+        fn deserialize<V>(self, _visitor: V) -> Result<V::Value, E>
+            where V: Visitor
+        {
+            Err(Error::missing_field(self.0))
+        }
+
+        fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, E>
+            where V: Visitor
+        {
+            visitor.visit_none()
+        }
+
+        forward_to_deserialize! {
+            bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string unit seq
+            seq_fixed_size bytes byte_buf map unit_struct newtype_struct
+            tuple_struct struct struct_field tuple enum ignored_any
+        }
+    }
+
+    let deserializer = MissingFieldDeserializer(field, PhantomData);
+    Deserialize::deserialize(deserializer)
+}

serde/src/error.rs

@@ -1,30 +1,7 @@
 //! A stand-in for `std::error`
-use core::any::TypeId;
 use core::fmt::{Debug, Display};
 
-
 /// A stand-in for `std::error::Error`, which requires no allocation.
-#[cfg(feature = "nightly")]
-pub trait Error: Debug + Display + ::core::marker::Reflect {
-    /// A short description of the error.
-    ///
-    /// The description should not contain newlines or sentence-ending
-    /// punctuation, to facilitate embedding in larger user-facing
-    /// strings.
-    fn description(&self) -> &str;
-
-    /// The lower-level cause of this error, if any.
-    fn cause(&self) -> Option<&Error> { None }
-
-    /// Get the `TypeId` of `self`
-    #[doc(hidden)]
-    fn type_id(&self) -> TypeId where Self: 'static {
-        TypeId::of::<Self>()
-    }
-}
-
-/// A stand-in for `std::error::Error`, which requires no allocation.
-#[cfg(not(feature = "nightly"))]
 pub trait Error: Debug + Display {
     /// A short description of the error.
     ///
@@ -34,11 +11,7 @@ pub trait Error: Debug + Display {
     fn description(&self) -> &str;
 
     /// The lower-level cause of this error, if any.
-    fn cause(&self) -> Option<&Error> { None }
-
-    /// Stubbed! Returns type_id of `()`
-    #[doc(hidden)]
-    fn type_id(&self) -> TypeId where Self: 'static {
-        TypeId::of::<()>()
+    fn cause(&self) -> Option<&Error> {
+        None
     }
 }

serde/src/export.rs

@@ -0,0 +1,34 @@
+#[cfg(all(feature = "collections", not(feature = "std")))]
+use collections::String;
+
+#[cfg(feature = "std")]
+use std::borrow::Cow;
+#[cfg(all(feature = "collections", not(feature = "std")))]
+use collections::borrow::Cow;
+
+pub use core::default::Default;
+pub use core::fmt;
+pub use core::marker::PhantomData;
+pub use core::option::Option::{self, None, Some};
+pub use core::result::Result::{self, Ok, Err};
+
+#[cfg(any(feature = "collections", feature = "std"))]
+pub fn from_utf8_lossy(bytes: &[u8]) -> Cow<str> {
+    String::from_utf8_lossy(bytes)
+}
+
+// The generated code calls this like:
+//
+//     let value = &_serde::export::from_utf8_lossy(bytes);
+//     Err(_serde::de::Error::unknown_variant(value, VARIANTS))
+//
+// so it is okay for the return type to be different from the std case as long
+// as the above works.
+#[cfg(not(any(feature = "collections", feature = "std")))]
+pub fn from_utf8_lossy(bytes: &[u8]) -> &str {
+    use core::str;
+    // Three unicode replacement characters if it fails. They look like a
+    // white-on-black question mark. The user will recognize it as invalid
+    // UTF-8.
+    str::from_utf8(bytes).unwrap_or("\u{fffd}\u{fffd}\u{fffd}")
+}

serde/src/iter.rs

@@ -4,13 +4,13 @@ use std::io;
 use std::iter::Peekable;
 
 /// Iterator over a byte stream that tracks the current position's line and column.
-pub struct LineColIterator<Iter: Iterator<Item=io::Result<u8>>> {
+pub struct LineColIterator<Iter: Iterator<Item = io::Result<u8>>> {
     iter: Iter,
     line: usize,
     col: usize,
 }
 
-impl<Iter: Iterator<Item=io::Result<u8>>> LineColIterator<Iter> {
+impl<Iter: Iterator<Item = io::Result<u8>>> LineColIterator<Iter> {
     /// Construct a new `LineColIterator<Iter>`.
     pub fn new(iter: Iter) -> LineColIterator<Iter> {
         LineColIterator {
@@ -21,27 +21,39 @@ impl<Iter: Iterator<Item=io::Result<u8>>> LineColIterator<Iter> {
     }
 
     /// Report the current line inside the iterator.
-    pub fn line(&self) -> usize { self.line }
+    pub fn line(&self) -> usize {
+        self.line
+    }
 
     /// Report the current column inside the iterator.
-    pub fn col(&self) -> usize { self.col }
+    pub fn col(&self) -> usize {
+        self.col
+    }
 
     /// Gets a reference to the underlying iterator.
-    pub fn get_ref(&self) -> &Iter { &self.iter }
+    pub fn get_ref(&self) -> &Iter {
+        &self.iter
+    }
 
     /// Gets a mutable reference to the underlying iterator.
-    pub fn get_mut(&mut self) -> &mut Iter { &mut self.iter }
+    pub fn get_mut(&mut self) -> &mut Iter {
+        &mut self.iter
+    }
 
     /// Unwraps this `LineColIterator`, returning the underlying iterator.
-    pub fn into_inner(self) -> Iter { self.iter }
+    pub fn into_inner(self) -> Iter {
+        self.iter
+    }
 }
 
-impl<Iter: Iterator<Item=io::Result<u8>>> LineColIterator<Peekable<Iter>> {
+impl<Iter: Iterator<Item = io::Result<u8>>> LineColIterator<Peekable<Iter>> {
     /// peeks at the next value
-    pub fn peek(&mut self) -> Option<&io::Result<u8>> { self.iter.peek() }
+    pub fn peek(&mut self) -> Option<&io::Result<u8>> {
+        self.iter.peek()
+    }
 }
 
-impl<Iter: Iterator<Item=io::Result<u8>>> Iterator for LineColIterator<Iter> {
+impl<Iter: Iterator<Item = io::Result<u8>>> Iterator for LineColIterator<Iter> {
     type Item = io::Result<u8>;
     fn next(&mut self) -> Option<io::Result<u8>> {
         match self.iter.next() {
@@ -50,11 +62,11 @@ impl<Iter: Iterator<Item=io::Result<u8>>> Iterator for LineColIterator<Iter> {
                 self.line += 1;
                 self.col = 0;
                 Some(Ok(b'\n'))
-            },
+            }
             Some(Ok(c)) => {
                 self.col += 1;
                 Some(Ok(c))
-            },
+            }
             Some(Err(e)) => Some(Err(e)),
         }
     }

serde/src/lib.rs

@@ -1,55 +1,107 @@
-//! Serde Serialization Framework
+//! # Serde
 //!
-//! Serde is a powerful framework that enables serialization libraries to generically serialize
-//! Rust data structures without the overhead of runtime type information. In many situations, the
-//! handshake protocol between serializers and serializees can be completely optimized away,
-//! leaving serde to perform roughly the same speed as a hand written serializer for a specific
-//! type.
-//! 
-//! For a detailed tutorial on the different ways to use serde please check out the
-//! [github repository](https://github.com/serde-rs/serde)
+//! Serde is a framework for ***ser***ializing and ***de***serializing Rust data
+//! structures efficiently and generically.
+//!
+//! The Serde ecosystem consists of data structures that know how to serialize
+//! and deserialize themselves along with data formats that know how to
+//! serialize and deserialize other things. Serde provides the layer by which
+//! these two groups interact with each other, allowing any supported data
+//! structure to be serialized and deserialized using any supported data format.
+//!
+//! See the Serde website https://serde.rs/ for additional documentation and
+//! usage examples.
+//!
+//! ### Design
+//!
+//! Where many other languages rely on runtime reflection for serializing data,
+//! Serde is instead built on Rust's powerful trait system. A data structure
+//! that knows how to serialize and deserialize itself is one that implements
+//! Serde's `Serialize` and `Deserialize` traits (or uses Serde's code
+//! generation to automatically derive implementations at compile time). This
+//! avoids any overhead of reflection or runtime type information. In fact in
+//! many situations the interaction between data structure and data format can
+//! be completely optimized away by the Rust compiler, leaving Serde
+//! serialization to perform roughly the same speed as a handwritten serializer
+//! for the specific selection of data structure and data format.
+//!
+//! ### Data formats
+//!
+//! The following is a partial list of data formats that have been implemented
+//! for Serde by the community.
+//!
+//! - [JSON](https://github.com/serde-rs/json), the ubiquitous JavaScript Object
+//!   Notation used by many HTTP APIs.
+//! - [Bincode](https://github.com/TyOverby/bincode), a compact binary format
+//!   used for IPC within the Servo rendering engine.
+//! - [CBOR](https://github.com/pyfisch/cbor), a Concise Binary Object
+//!   Representation designed for small message size without the need for
+//!   version negotiation.
+//! - [YAML](https://github.com/dtolnay/serde-yaml), a popular human-friendly
+//!   configuration language that ain't markup language.
+//! - [MessagePack](https://github.com/3Hren/msgpack-rust), an efficient binary
+//!   format that resembles a compact JSON.
+//! - [TOML](https://github.com/alexcrichton/toml-rs), a minimal configuration
+//!   format used by [Cargo](http://doc.crates.io/manifest.html).
+//! - [Pickle](https://github.com/birkenfeld/serde-pickle), a format common in
+//!   the Python world.
+//! - [Hjson](https://github.com/laktak/hjson-rust), a variant of JSON designed
+//!   to be readable and writable by humans.
+//! - [BSON](https://github.com/zonyitoo/bson-rs), the data storage and network
+//!   transfer format used by MongoDB.
+//! - [URL](https://github.com/nox/serde_urlencoded), the x-www-form-urlencoded
+//!   format.
+//! - [XML](https://github.com/serde-rs/xml), the flexible machine-friendly W3C
+//!   standard. *(deserialization only)*
+//! - [Envy](https://github.com/softprops/envy), a way to deserialize
+//!   environment variables into Rust structs. *(deserialization only)*
+//! - [Redis](https://github.com/OneSignal/serde-redis), deserialize values from
+//!   Redis when using [redis-rs](https://crates.io/crates/redis).
+//!   *(deserialization only)*
 
-#![doc(html_root_url="https://serde-rs.github.io/serde/serde")]
+#![doc(html_root_url="https://docs.serde.rs")]
 #![cfg_attr(not(feature = "std"), no_std)]
-#![cfg_attr(feature = "nightly", feature(reflect_marker, unicode, nonzero, plugin, step_trait, zero_one))]
+#![cfg_attr(feature = "unstable", feature(inclusive_range, nonzero, specialization, zero_one))]
 #![cfg_attr(feature = "alloc", feature(alloc))]
-#![cfg_attr(feature = "collections", feature(collections, enumset))]
-#![cfg_attr(feature = "nightly-testing", plugin(clippy))]
-#![cfg_attr(feature = "nightly-testing", allow(linkedlist))]
-
-#![cfg_attr(any(not(feature = "std"), feature = "nightly"), allow(unused_variables, unused_imports, unused_features, dead_code))]
-
+#![cfg_attr(feature = "collections", feature(collections))]
+#![cfg_attr(feature = "cargo-clippy", allow(linkedlist, type_complexity, doc_markdown))]
 #![deny(missing_docs)]
 
-#[cfg(all(feature = "nightly", feature = "collections"))]
+#[cfg(feature = "collections")]
 extern crate collections;
 
-#[cfg(all(feature = "nightly", feature = "alloc"))]
+#[cfg(feature = "alloc")]
 extern crate alloc;
 
+#[cfg(feature = "unstable")]
+extern crate core as actual_core;
+
 #[cfg(feature = "std")]
 mod core {
     pub use std::{ops, hash, fmt, cmp, marker, mem, i8, i16, i32, i64, u8, u16, u32, u64, isize,
-            usize, f32, f64, char, str, num, slice, iter};
-    #[cfg(feature = "nightly")]
-    extern crate core;
-    #[cfg(feature = "nightly")]
-    pub use self::core::nonzero;
+                  usize, f32, f64, char, str, num, slice, iter, cell, default, result, option};
+    #[cfg(feature = "unstable")]
+    pub use actual_core::nonzero;
 }
 
+#[doc(inline)]
 pub use ser::{Serialize, Serializer};
-pub use de::{Deserialize, Deserializer, Error};
+#[doc(inline)]
+pub use de::{Deserialize, Deserializer};
 
-#[cfg(not(feature = "std"))]
-macro_rules! format {
-    ($s:expr, $($rest:tt)*) => ($s)
-}
+#[macro_use]
+mod macros;
 
 pub mod bytes;
 pub mod de;
 #[cfg(feature = "std")]
+#[doc(hidden)]
 pub mod iter;
 pub mod ser;
-#[cfg(not(feature = "std"))]
+#[cfg_attr(feature = "std", doc(hidden))]
 pub mod error;
 mod utils;
+
+// Generated code uses these to support no_std. Not public API.
+#[doc(hidden)]
+pub mod export;

serde/src/macros.rs

@@ -0,0 +1,222 @@
+#[cfg(feature = "std")]
+#[doc(hidden)]
+#[macro_export]
+macro_rules! forward_to_deserialize_method {
+    ($func:ident($($arg:ty),*)) => {
+        #[inline]
+        fn $func<__V>(self, $(_: $arg,)* visitor: __V) -> ::std::result::Result<__V::Value, Self::Error>
+            where __V: $crate::de::Visitor
+        {
+            self.deserialize(visitor)
+        }
+    };
+}
+
+#[cfg(not(feature = "std"))]
+#[doc(hidden)]
+#[macro_export]
+macro_rules! forward_to_deserialize_method {
+    ($func:ident($($arg:ty),*)) => {
+        #[inline]
+        fn $func<__V>(self, $(_: $arg,)* visitor: __V) -> ::core::result::Result<__V::Value, Self::Error>
+            where __V: $crate::de::Visitor
+        {
+            self.deserialize(visitor)
+        }
+    };
+}
+
+#[doc(hidden)]
+#[macro_export]
+macro_rules! forward_to_deserialize_helper {
+    (bool) => {
+        forward_to_deserialize_method!{deserialize_bool()}
+    };
+    (u8) => {
+        forward_to_deserialize_method!{deserialize_u8()}
+    };
+    (u16) => {
+        forward_to_deserialize_method!{deserialize_u16()}
+    };
+    (u32) => {
+        forward_to_deserialize_method!{deserialize_u32()}
+    };
+    (u64) => {
+        forward_to_deserialize_method!{deserialize_u64()}
+    };
+    (i8) => {
+        forward_to_deserialize_method!{deserialize_i8()}
+    };
+    (i16) => {
+        forward_to_deserialize_method!{deserialize_i16()}
+    };
+    (i32) => {
+        forward_to_deserialize_method!{deserialize_i32()}
+    };
+    (i64) => {
+        forward_to_deserialize_method!{deserialize_i64()}
+    };
+    (f32) => {
+        forward_to_deserialize_method!{deserialize_f32()}
+    };
+    (f64) => {
+        forward_to_deserialize_method!{deserialize_f64()}
+    };
+    (char) => {
+        forward_to_deserialize_method!{deserialize_char()}
+    };
+    (str) => {
+        forward_to_deserialize_method!{deserialize_str()}
+    };
+    (string) => {
+        forward_to_deserialize_method!{deserialize_string()}
+    };
+    (unit) => {
+        forward_to_deserialize_method!{deserialize_unit()}
+    };
+    (option) => {
+        forward_to_deserialize_method!{deserialize_option()}
+    };
+    (seq) => {
+        forward_to_deserialize_method!{deserialize_seq()}
+    };
+    (seq_fixed_size) => {
+        forward_to_deserialize_method!{deserialize_seq_fixed_size(usize)}
+    };
+    (bytes) => {
+        forward_to_deserialize_method!{deserialize_bytes()}
+    };
+    (byte_buf) => {
+        forward_to_deserialize_method!{deserialize_byte_buf()}
+    };
+    (map) => {
+        forward_to_deserialize_method!{deserialize_map()}
+    };
+    (unit_struct) => {
+        forward_to_deserialize_method!{deserialize_unit_struct(&'static str)}
+    };
+    (newtype_struct) => {
+        forward_to_deserialize_method!{deserialize_newtype_struct(&'static str)}
+    };
+    (tuple_struct) => {
+        forward_to_deserialize_method!{deserialize_tuple_struct(&'static str, usize)}
+    };
+    (struct) => {
+        forward_to_deserialize_method!{deserialize_struct(&'static str, &'static [&'static str])}
+    };
+    (struct_field) => {
+        forward_to_deserialize_method!{deserialize_struct_field()}
+    };
+    (tuple) => {
+        forward_to_deserialize_method!{deserialize_tuple(usize)}
+    };
+    (enum) => {
+        forward_to_deserialize_method!{deserialize_enum(&'static str, &'static [&'static str])}
+    };
+    (ignored_any) => {
+        forward_to_deserialize_method!{deserialize_ignored_any()}
+    };
+}
+
+// Super explicit first paragraph because this shows up at the top level and
+// trips up people who are just looking for basic Serialize / Deserialize
+// documentation.
+//
+/// Helper macro when implementing the `Deserializer` part of a new data format
+/// for Serde.
+///
+/// Some `Deserializer` implementations for self-describing formats do not care
+/// what hint the `Visitor` gives them, they just want to blindly call the
+/// `Visitor` method corresponding to the data they can tell is in the input.
+/// This requires repetitive implementations of all the `Deserializer` trait
+/// methods.
+///
+/// ```rust
+/// # #[macro_use] extern crate serde;
+/// # use serde::de::{value, Deserializer, Visitor};
+/// # pub struct MyDeserializer;
+/// # impl Deserializer for MyDeserializer {
+/// #     type Error = value::Error;
+/// #     fn deserialize<V>(self, _: V) -> Result<V::Value, Self::Error>
+/// #         where V: Visitor
+/// #     { unimplemented!() }
+/// #
+/// #[inline]
+/// fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+///     where V: Visitor
+/// {
+///     self.deserialize(visitor)
+/// }
+/// #     forward_to_deserialize! {
+/// #         u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string unit option
+/// #         seq seq_fixed_size bytes byte_buf map unit_struct newtype_struct
+/// #         tuple_struct struct struct_field tuple enum ignored_any
+/// #     }
+/// # }
+/// # fn main() {}
+/// ```
+///
+/// The `forward_to_deserialize!` macro implements these simple forwarding
+/// methods so that they forward directly to `Deserializer::deserialize`. You
+/// can choose which methods to forward.
+///
+/// ```rust
+/// # #[macro_use] extern crate serde;
+/// # use serde::de::{value, Deserializer, Visitor};
+/// # pub struct MyDeserializer;
+/// impl Deserializer for MyDeserializer {
+/// #   type Error = value::Error;
+///     fn deserialize<V>(self, visitor: V) -> Result<V::Value, Self::Error>
+///         where V: Visitor
+///     {
+///         /* ... */
+/// #       let _ = visitor;
+/// #       unimplemented!()
+///     }
+///
+///     forward_to_deserialize! {
+///         bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string unit option
+///         seq seq_fixed_size bytes byte_buf map unit_struct newtype_struct
+///         tuple_struct struct struct_field tuple enum ignored_any
+///     }
+/// }
+/// # fn main() {}
+/// ```
+#[macro_export]
+macro_rules! forward_to_deserialize {
+    ($($func:ident)*) => {
+        $(forward_to_deserialize_helper!{$func})*
+    };
+}
+
+/// Seralize the `$value` that implements Display as a string,
+/// when that string is statically known to never have more than
+/// a constant `$MAX_LEN` bytes.
+///
+/// Panics if the Display impl tries to write more than `$MAX_LEN` bytes.
+#[cfg(feature = "std")]
+// Not exported
+macro_rules! serialize_display_bounded_length {
+    ($value: expr, $MAX_LEN: expr, $serializer: expr) => {
+        {
+            use std::io::Write;
+            let mut buffer: [u8; $MAX_LEN] = unsafe { ::std::mem::uninitialized() };
+            let remaining_len;
+            {
+                let mut remaining = &mut buffer[..];
+                write!(remaining, "{}", $value).unwrap();
+                remaining_len = remaining.len()
+            }
+            let written_len = buffer.len() - remaining_len;
+            let written = &buffer[..written_len];
+
+            // write! only provides std::fmt::Formatter to Display implementations,
+            // which has methods write_str and write_char but no method to write arbitrary bytes.
+            // Therefore, `written` is well-formed in UTF-8.
+            let written_str = unsafe {
+                ::std::str::from_utf8_unchecked(written)
+            };
+            $serializer.serialize_str(written_str)
+        }
+    }
+}

serde/src/ser/content.rs

@@ -0,0 +1,635 @@
+use core::marker::PhantomData;
+
+#[cfg(all(not(feature = "std"), feature = "collections"))]
+use collections::{String, Vec};
+
+#[cfg(all(feature = "alloc", not(feature = "std")))]
+use alloc::boxed::Box;
+
+#[cfg(feature = "collections")]
+use collections::borrow::ToOwned;
+
+use ser::{self, Serialize, Serializer};
+
+pub struct SerializeTupleVariantAsMapValue<M> {
+    map: M,
+    name: &'static str,
+    fields: Vec<Content>,
+}
+
+impl<M> SerializeTupleVariantAsMapValue<M> {
+    pub fn new(map: M, name: &'static str, len: usize) -> Self {
+        SerializeTupleVariantAsMapValue {
+            map: map,
+            name: name,
+            fields: Vec::with_capacity(len),
+        }
+    }
+}
+
+impl<M> ser::SerializeTupleVariant for SerializeTupleVariantAsMapValue<M>
+    where M: ser::SerializeMap
+{
+    type Ok = M::Ok;
+    type Error = M::Error;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self,
+                                              value: &T)
+                                              -> Result<(), M::Error>
+    {
+        let value = try!(value.serialize(ContentSerializer::<M::Error>::new()));
+        self.fields.push(value);
+        Ok(())
+    }
+
+    fn end(mut self) -> Result<M::Ok, M::Error> {
+        try!(self.map.serialize_value(&Content::TupleStruct(self.name, self.fields)));
+        self.map.end()
+    }
+}
+
+pub struct SerializeStructVariantAsMapValue<M> {
+    map: M,
+    name: &'static str,
+    fields: Vec<(&'static str, Content)>,
+}
+
+impl<M> SerializeStructVariantAsMapValue<M> {
+    pub fn new(map: M, name: &'static str, len: usize) -> Self {
+        SerializeStructVariantAsMapValue {
+            map: map,
+            name: name,
+            fields: Vec::with_capacity(len),
+        }
+    }
+}
+
+impl<M> ser::SerializeStructVariant for SerializeStructVariantAsMapValue<M>
+    where M: ser::SerializeMap
+{
+    type Ok = M::Ok;
+    type Error = M::Error;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self,
+                                              key: &'static str,
+                                              value: &T)
+                                              -> Result<(), M::Error>
+    {
+        let value = try!(value.serialize(ContentSerializer::<M::Error>::new()));
+        self.fields.push((key, value));
+        Ok(())
+    }
+
+    fn end(mut self) -> Result<M::Ok, M::Error> {
+        try!(self.map.serialize_value(&Content::Struct(self.name, self.fields)));
+        self.map.end()
+    }
+}
+
+#[derive(Debug)]
+enum Content {
+    Bool(bool),
+
+    U8(u8),
+    U16(u16),
+    U32(u32),
+    U64(u64),
+
+    I8(i8),
+    I16(i16),
+    I32(i32),
+    I64(i64),
+
+    F32(f32),
+    F64(f64),
+
+    Char(char),
+    String(String),
+    Bytes(Vec<u8>),
+
+    None,
+    Some(Box<Content>),
+
+    Unit,
+    UnitStruct(&'static str),
+    UnitVariant(&'static str, usize, &'static str),
+    NewtypeStruct(&'static str, Box<Content>),
+    NewtypeVariant(&'static str, usize, &'static str, Box<Content>),
+
+    Seq(Vec<Content>),
+    SeqFixedSize(Vec<Content>),
+    Tuple(Vec<Content>),
+    TupleStruct(&'static str, Vec<Content>),
+    TupleVariant(&'static str, usize, &'static str, Vec<Content>),
+    Map(Vec<(Content, Content)>),
+    Struct(&'static str, Vec<(&'static str, Content)>),
+    StructVariant(&'static str, usize, &'static str, Vec<(&'static str, Content)>),
+}
+
+impl Serialize for Content {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        match *self {
+            Content::Bool(b) => serializer.serialize_bool(b),
+            Content::U8(u) => serializer.serialize_u8(u),
+            Content::U16(u) => serializer.serialize_u16(u),
+            Content::U32(u) => serializer.serialize_u32(u),
+            Content::U64(u) => serializer.serialize_u64(u),
+            Content::I8(i) => serializer.serialize_i8(i),
+            Content::I16(i) => serializer.serialize_i16(i),
+            Content::I32(i) => serializer.serialize_i32(i),
+            Content::I64(i) => serializer.serialize_i64(i),
+            Content::F32(f) => serializer.serialize_f32(f),
+            Content::F64(f) => serializer.serialize_f64(f),
+            Content::Char(c) => serializer.serialize_char(c),
+            Content::String(ref s) => serializer.serialize_str(s),
+            Content::Bytes(ref b) => serializer.serialize_bytes(b),
+            Content::None => serializer.serialize_none(),
+            Content::Some(ref c) => serializer.serialize_some(&**c),
+            Content::Unit => serializer.serialize_unit(),
+            Content::UnitStruct(n) => serializer.serialize_unit_struct(n),
+            Content::UnitVariant(n, i, v) => serializer.serialize_unit_variant(n, i, v),
+            Content::NewtypeStruct(n, ref c) => serializer.serialize_newtype_struct(n, &**c),
+            Content::NewtypeVariant(n, i, v, ref c) => serializer.serialize_newtype_variant(n, i, v, &**c),
+            Content::Seq(ref elements) => elements.serialize(serializer),
+            Content::SeqFixedSize(ref elements) => {
+                use ser::SerializeSeq;
+                let mut seq = try!(serializer.serialize_seq_fixed_size(elements.len()));
+                for e in elements {
+                    try!(seq.serialize_element(e));
+                }
+                seq.end()
+            }
+            Content::Tuple(ref elements) => {
+                use ser::SerializeTuple;
+                let mut tuple = try!(serializer.serialize_tuple(elements.len()));
+                for e in elements {
+                    try!(tuple.serialize_element(e));
+                }
+                tuple.end()
+            }
+            Content::TupleStruct(n, ref fields) => {
+                use ser::SerializeTupleStruct;
+                let mut ts = try!(serializer.serialize_tuple_struct(n, fields.len()));
+                for f in fields {
+                    try!(ts.serialize_field(f));
+                }
+                ts.end()
+            }
+            Content::TupleVariant(n, i, v, ref fields) => {
+                use ser::SerializeTupleVariant;
+                let mut tv = try!(serializer.serialize_tuple_variant(n, i, v, fields.len()));
+                for f in fields {
+                    try!(tv.serialize_field(f));
+                }
+                tv.end()
+            }
+            Content::Map(ref entries) => {
+                use ser::SerializeMap;
+                let mut map = try!(serializer.serialize_map(Some(entries.len())));
+                for &(ref k, ref v) in entries {
+                    try!(map.serialize_entry(k, v));
+                }
+                map.end()
+            }
+            Content::Struct(n, ref fields) => {
+                use ser::SerializeStruct;
+                let mut s = try!(serializer.serialize_struct(n, fields.len()));
+                for &(k, ref v) in fields {
+                    try!(s.serialize_field(k, v));
+                }
+                s.end()
+            }
+            Content::StructVariant(n, i, v, ref fields) => {
+                use ser::SerializeStructVariant;
+                let mut sv = try!(serializer.serialize_struct_variant(n, i, v, fields.len()));
+                for &(k, ref v) in fields {
+                    try!(sv.serialize_field(k, v));
+                }
+                sv.end()
+            }
+        }
+    }
+}
+
+struct ContentSerializer<E> {
+    error: PhantomData<E>,
+}
+
+impl<E> ContentSerializer<E> {
+    fn new() -> Self {
+        ContentSerializer {
+            error: PhantomData,
+        }
+    }
+}
+
+impl<E> Serializer for ContentSerializer<E>
+    where E: ser::Error
+{
+    type Ok = Content;
+    type Error = E;
+
+    type SerializeSeq = SerializeSeq<E>;
+    type SerializeTuple = SerializeTuple<E>;
+    type SerializeTupleStruct = SerializeTupleStruct<E>;
+    type SerializeTupleVariant = SerializeTupleVariant<E>;
+    type SerializeMap = SerializeMap<E>;
+    type SerializeStruct = SerializeStruct<E>;
+    type SerializeStructVariant = SerializeStructVariant<E>;
+
+    fn serialize_bool(self, v: bool) -> Result<Content, E> {
+        Ok(Content::Bool(v))
+    }
+
+    fn serialize_i8(self, v: i8) -> Result<Content, E> {
+        Ok(Content::I8(v))
+    }
+
+    fn serialize_i16(self, v: i16) -> Result<Content, E> {
+        Ok(Content::I16(v))
+    }
+
+    fn serialize_i32(self, v: i32) -> Result<Content, E> {
+        Ok(Content::I32(v))
+    }
+
+    fn serialize_i64(self, v: i64) -> Result<Content, E> {
+        Ok(Content::I64(v))
+    }
+
+    fn serialize_u8(self, v: u8) -> Result<Content, E> {
+        Ok(Content::U8(v))
+    }
+
+    fn serialize_u16(self, v: u16) -> Result<Content, E> {
+        Ok(Content::U16(v))
+    }
+
+    fn serialize_u32(self, v: u32) -> Result<Content, E> {
+        Ok(Content::U32(v))
+    }
+
+    fn serialize_u64(self, v: u64) -> Result<Content, E> {
+        Ok(Content::U64(v))
+    }
+
+    fn serialize_f32(self, v: f32) -> Result<Content, E> {
+        Ok(Content::F32(v))
+    }
+
+    fn serialize_f64(self, v: f64) -> Result<Content, E> {
+        Ok(Content::F64(v))
+    }
+
+    fn serialize_char(self, v: char) -> Result<Content, E> {
+        Ok(Content::Char(v))
+    }
+
+    fn serialize_str(self, value: &str) -> Result<Content, E> {
+        Ok(Content::String(value.to_owned()))
+    }
+
+    fn serialize_bytes(self, value: &[u8]) -> Result<Content, E> {
+        Ok(Content::Bytes(value.to_owned()))
+    }
+
+    fn serialize_none(self) -> Result<Content, E> {
+        Ok(Content::None)
+    }
+
+    fn serialize_some<T: ?Sized + Serialize>(self,
+                                             value: &T)
+                                             -> Result<Content, E> {
+        Ok(Content::Some(Box::new(try!(value.serialize(self)))))
+    }
+
+    fn serialize_unit(self) -> Result<Content, E> {
+        Ok(Content::Unit)
+    }
+
+    fn serialize_unit_struct(self,
+                             name: &'static str)
+                             -> Result<Content, E> {
+        Ok(Content::UnitStruct(name))
+    }
+
+    fn serialize_unit_variant(self,
+                              name: &'static str,
+                              variant_index: usize,
+                              variant: &'static str)
+                              -> Result<Content, E> {
+        Ok(Content::UnitVariant(name, variant_index, variant))
+    }
+
+    fn serialize_newtype_struct<T: ?Sized + Serialize>(self,
+                                                       name: &'static str,
+                                                       value: &T)
+                                                       -> Result<Content, E> {
+        Ok(Content::NewtypeStruct(name, Box::new(try!(value.serialize(self)))))
+    }
+
+    fn serialize_newtype_variant<T: ?Sized + Serialize>(self,
+                                                        name: &'static str,
+                                                        variant_index: usize,
+                                                        variant: &'static str,
+                                                        value: &T)
+                                                        -> Result<Content, E> {
+        Ok(Content::NewtypeVariant(name, variant_index, variant, Box::new(try!(value.serialize(self)))))
+    }
+
+    fn serialize_seq(self,
+                     len: Option<usize>)
+                     -> Result<Self::SerializeSeq, E> {
+        Ok(SerializeSeq {
+            fixed_size: false,
+            elements: Vec::with_capacity(len.unwrap_or(0)),
+            error: PhantomData,
+        })
+    }
+
+    fn serialize_seq_fixed_size(self,
+                                size: usize)
+                                -> Result<Self::SerializeSeq, E> {
+        Ok(SerializeSeq {
+            fixed_size: true,
+            elements: Vec::with_capacity(size),
+            error: PhantomData,
+        })
+    }
+
+    fn serialize_tuple(self,
+                       len: usize)
+                       -> Result<Self::SerializeTuple, E> {
+        Ok(SerializeTuple {
+            elements: Vec::with_capacity(len),
+            error: PhantomData,
+        })
+    }
+
+    fn serialize_tuple_struct(self,
+                              name: &'static str,
+                              len: usize)
+                              -> Result<Self::SerializeTupleStruct, E> {
+        Ok(SerializeTupleStruct {
+            name: name,
+            fields: Vec::with_capacity(len),
+            error: PhantomData,
+        })
+    }
+
+    fn serialize_tuple_variant(self,
+                               name: &'static str,
+                               variant_index: usize,
+                               variant: &'static str,
+                               len: usize)
+                               -> Result<Self::SerializeTupleVariant, E> {
+        Ok(SerializeTupleVariant {
+            name: name,
+            variant_index: variant_index,
+            variant: variant,
+            fields: Vec::with_capacity(len),
+            error: PhantomData,
+        })
+    }
+
+    fn serialize_map(self,
+                     len: Option<usize>)
+                     -> Result<Self::SerializeMap, E> {
+        Ok(SerializeMap {
+            entries: Vec::with_capacity(len.unwrap_or(0)),
+            key: None,
+            error: PhantomData,
+        })
+    }
+
+    fn serialize_struct(self,
+                        name: &'static str,
+                        len: usize)
+                        -> Result<Self::SerializeStruct, E> {
+        Ok(SerializeStruct {
+            name: name,
+            fields: Vec::with_capacity(len),
+            error: PhantomData,
+        })
+    }
+
+    fn serialize_struct_variant(self,
+                                name: &'static str,
+                                variant_index: usize,
+                                variant: &'static str,
+                                len: usize)
+                                -> Result<Self::SerializeStructVariant, E> {
+        Ok(SerializeStructVariant {
+            name: name,
+            variant_index: variant_index,
+            variant: variant,
+            fields: Vec::with_capacity(len),
+            error: PhantomData,
+        })
+    }
+}
+
+struct SerializeSeq<E> {
+    fixed_size: bool,
+    elements: Vec<Content>,
+    error: PhantomData<E>,
+}
+
+impl<E> ser::SerializeSeq for SerializeSeq<E>
+    where E: ser::Error
+{
+    type Ok = Content;
+    type Error = E;
+
+    fn serialize_element<T: ?Sized + Serialize>(&mut self,
+                                                value: &T)
+                                                -> Result<(), E> {
+        let value = try!(value.serialize(ContentSerializer::<E>::new()));
+        self.elements.push(value);
+        Ok(())
+    }
+
+    fn end(self) -> Result<Content, E> {
+        Ok(if self.fixed_size {
+            Content::SeqFixedSize(self.elements)
+        } else {
+            Content::Seq(self.elements)
+        })
+    }
+}
+
+struct SerializeTuple<E> {
+    elements: Vec<Content>,
+    error: PhantomData<E>,
+}
+
+impl<E> ser::SerializeTuple for SerializeTuple<E>
+    where E: ser::Error
+{
+    type Ok = Content;
+    type Error = E;
+
+    fn serialize_element<T: ?Sized + Serialize>(&mut self,
+                                                value: &T)
+                                                -> Result<(), E> {
+        let value = try!(value.serialize(ContentSerializer::<E>::new()));
+        self.elements.push(value);
+        Ok(())
+    }
+
+    fn end(self) -> Result<Content, E> {
+        Ok(Content::Tuple(self.elements))
+    }
+}
+
+struct SerializeTupleStruct<E> {
+    name: &'static str,
+    fields: Vec<Content>,
+    error: PhantomData<E>,
+}
+
+impl<E> ser::SerializeTupleStruct for SerializeTupleStruct<E>
+    where E: ser::Error
+{
+    type Ok = Content;
+    type Error = E;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self,
+                                              value: &T)
+                                              -> Result<(), E> {
+        let value = try!(value.serialize(ContentSerializer::<E>::new()));
+        self.fields.push(value);
+        Ok(())
+    }
+
+    fn end(self) -> Result<Content, E> {
+        Ok(Content::TupleStruct(self.name, self.fields))
+    }
+}
+
+struct SerializeTupleVariant<E> {
+    name: &'static str,
+    variant_index: usize,
+    variant: &'static str,
+    fields: Vec<Content>,
+    error: PhantomData<E>,
+}
+
+impl<E> ser::SerializeTupleVariant for SerializeTupleVariant<E>
+    where E: ser::Error
+{
+    type Ok = Content;
+    type Error = E;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self,
+                                              value: &T)
+                                              -> Result<(), E> {
+        let value = try!(value.serialize(ContentSerializer::<E>::new()));
+        self.fields.push(value);
+        Ok(())
+    }
+
+    fn end(self) -> Result<Content, E> {
+        Ok(Content::TupleVariant(self.name, self.variant_index, self.variant, self.fields))
+    }
+}
+
+struct SerializeMap<E> {
+    entries: Vec<(Content, Content)>,
+    key: Option<Content>,
+    error: PhantomData<E>,
+}
+
+impl<E> ser::SerializeMap for SerializeMap<E>
+    where E: ser::Error
+{
+    type Ok = Content;
+    type Error = E;
+
+    fn serialize_key<T: ?Sized + Serialize>(&mut self,
+                                            key: &T)
+                                            -> Result<(), E> {
+        let key = try!(key.serialize(ContentSerializer::<E>::new()));
+        self.key = Some(key);
+        Ok(())
+    }
+
+    fn serialize_value<T: ?Sized + Serialize>(&mut self,
+                                              value: &T)
+                                              -> Result<(), E> {
+        let key = self.key.take().expect("serialize_value called before serialize_key");
+        let value = try!(value.serialize(ContentSerializer::<E>::new()));
+        self.entries.push((key, value));
+        Ok(())
+    }
+
+    fn end(self) -> Result<Content, E> {
+        Ok(Content::Map(self.entries))
+    }
+
+    fn serialize_entry<K: ?Sized + Serialize, V: ?Sized + Serialize>(&mut self,
+                                                                     key: &K,
+                                                                     value: &V)
+                                                                     -> Result<(), E> {
+        let key = try!(key.serialize(ContentSerializer::<E>::new()));
+        let value = try!(value.serialize(ContentSerializer::<E>::new()));
+        self.entries.push((key, value));
+        Ok(())
+    }
+}
+
+struct SerializeStruct<E> {
+    name: &'static str,
+    fields: Vec<(&'static str, Content)>,
+    error: PhantomData<E>,
+}
+
+impl<E> ser::SerializeStruct for SerializeStruct<E>
+    where E: ser::Error
+{
+    type Ok = Content;
+    type Error = E;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self,
+                                              key: &'static str,
+                                              value: &T)
+                                              -> Result<(), E> {
+        let value = try!(value.serialize(ContentSerializer::<E>::new()));
+        self.fields.push((key, value));
+        Ok(())
+    }
+
+    fn end(self) -> Result<Content, E> {
+        Ok(Content::Struct(self.name, self.fields))
+    }
+}
+
+struct SerializeStructVariant<E> {
+    name: &'static str,
+    variant_index: usize,
+    variant: &'static str,
+    fields: Vec<(&'static str, Content)>,
+    error: PhantomData<E>,
+}
+
+impl<E> ser::SerializeStructVariant for SerializeStructVariant<E>
+    where E: ser::Error
+{
+    type Ok = Content;
+    type Error = E;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self,
+                                              key: &'static str,
+                                              value: &T)
+                                              -> Result<(), E> {
+        let value = try!(value.serialize(ContentSerializer::<E>::new()));
+        self.fields.push((key, value));
+        Ok(())
+    }
+
+    fn end(self) -> Result<Content, E> {
+        Ok(Content::StructVariant(self.name, self.variant_index, self.variant, self.fields))
+    }
+}

serde/src/ser/impls.rs

@@ -1,44 +1,23 @@
-//! Implementations for all of Rust's builtin types.
-
 #[cfg(feature = "std")]
 use std::borrow::Cow;
 #[cfg(all(feature = "collections", not(feature = "std")))]
 use collections::borrow::Cow;
 
 #[cfg(feature = "std")]
-use std::collections::{
-    BinaryHeap,
-    BTreeMap,
-    BTreeSet,
-    LinkedList,
-    HashMap,
-    HashSet,
-    VecDeque,
-};
+use std::collections::{BinaryHeap, BTreeMap, BTreeSet, LinkedList, HashMap, HashSet, VecDeque};
 #[cfg(all(feature = "collections", not(feature = "std")))]
-use collections::{
-    BinaryHeap,
-    BTreeMap,
-    BTreeSet,
-    LinkedList,
-    VecDeque,
-    String,
-    Vec,
-};
+use collections::{BinaryHeap, BTreeMap, BTreeSet, LinkedList, VecDeque, String, Vec};
 
-#[cfg(all(feature = "nightly", feature = "collections"))]
-use collections::enum_set::{CLike, EnumSet};
-#[cfg(all(feature = "nightly", feature = "collections"))]
+#[cfg(feature = "collections")]
 use collections::borrow::ToOwned;
 
-use core::hash::Hash;
-#[cfg(feature = "nightly")]
+#[cfg(feature = "std")]
+use core::hash::{Hash, BuildHasher};
+#[cfg(feature = "unstable")]
 use core::iter;
 #[cfg(feature = "std")]
 use std::net;
-#[cfg(feature = "nightly")]
-use core::num;
-#[cfg(feature = "nightly")]
+#[cfg(feature = "unstable")]
 use core::ops;
 #[cfg(feature = "std")]
 use std::path;
@@ -46,6 +25,8 @@ use std::path;
 use std::rc::Rc;
 #[cfg(all(feature = "alloc", not(feature = "std")))]
 use alloc::rc::Rc;
+#[cfg(feature = "std")]
+use std::time::Duration;
 
 #[cfg(feature = "std")]
 use std::sync::Arc;
@@ -57,39 +38,35 @@ use alloc::boxed::Box;
 
 use core::marker::PhantomData;
 
-#[cfg(feature = "nightly")]
+#[cfg(feature = "unstable")]
 use core::nonzero::{NonZero, Zeroable};
 
-use super::{
-    Error,
-    Serialize,
-    Serializer,
-    SeqVisitor,
-    MapVisitor,
-};
+use super::{Serialize, SerializeSeq, SerializeTuple, Serializer};
+#[cfg(feature = "std")]
+use super::Error;
 
 ///////////////////////////////////////////////////////////////////////////////
 
 macro_rules! impl_visit {
-    ($ty:ty, $method:ident) => {
+    ($ty:ty, $method:ident $($cast:tt)*) => {
         impl Serialize for $ty {
             #[inline]
-            fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
+            fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
                 where S: Serializer,
             {
-                serializer.$method(*self)
+                serializer.$method(*self $($cast)*)
             }
         }
     }
 }
 
 impl_visit!(bool, serialize_bool);
-impl_visit!(isize, serialize_isize);
+impl_visit!(isize, serialize_i64 as i64);
 impl_visit!(i8, serialize_i8);
 impl_visit!(i16, serialize_i16);
 impl_visit!(i32, serialize_i32);
 impl_visit!(i64, serialize_i64);
-impl_visit!(usize, serialize_usize);
+impl_visit!(usize, serialize_u64 as u64);
 impl_visit!(u8, serialize_u8);
 impl_visit!(u16, serialize_u16);
 impl_visit!(u32, serialize_u32);
@@ -102,8 +79,8 @@ impl_visit!(char, serialize_char);
 
 impl Serialize for str {
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         serializer.serialize_str(self)
     }
@@ -112,8 +89,8 @@ impl Serialize for str {
 #[cfg(any(feature = "std", feature = "collections"))]
 impl Serialize for String {
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         (&self[..]).serialize(serializer)
     }
@@ -121,10 +98,12 @@ impl Serialize for String {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-impl<T> Serialize for Option<T> where T: Serialize {
+impl<T> Serialize for Option<T>
+    where T: Serialize
+{
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         match *self {
             Some(ref value) => serializer.serialize_some(value),
@@ -133,32 +112,12 @@ impl<T> Serialize for Option<T> where T: Serialize {
     }
 }
 
-impl<T> SeqVisitor for Option<T> where T: Serialize {
-    #[inline]
-    fn visit<S>(&mut self, serializer: &mut S) -> Result<Option<()>, S::Error>
-        where S: Serializer,
-    {
-        match self.take() {
-            Some(value) => {
-                try!(serializer.serialize_seq_elt(value));
-                Ok(Some(()))
-            }
-            None => Ok(None),
-        }
-    }
-
-    #[inline]
-    fn len(&self) -> Option<usize> {
-        Some(if self.is_some() { 1 } else { 0 })
-    }
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 
 impl<T> Serialize for PhantomData<T> {
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         serializer.serialize_unit_struct("PhantomData")
     }
@@ -166,92 +125,18 @@ impl<T> Serialize for PhantomData<T> {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-/// A `serde::Visitor` for sequence iterators.
-///
-/// # Examples
-///
-/// ```
-/// use serde::{Serialize, Serializer};
-/// use serde::ser::impls::SeqIteratorVisitor;
-///
-/// struct Seq(Vec<u32>);
-///
-/// impl Serialize for Seq {
-///     fn serialize<S>(&self, ser: &mut S) -> Result<(), S::Error>
-///         where S: Serializer,
-///     {
-///         ser.serialize_seq(SeqIteratorVisitor::new(
-///             self.0.iter(),
-///             Some(self.0.len()),
-///         ))
-///     }
-/// }
-/// ```
-pub struct SeqIteratorVisitor<Iter> {
-    iter: Iter,
-    len: Option<usize>,
-}
-
-impl<T, Iter> SeqIteratorVisitor<Iter>
-    where Iter: Iterator<Item=T>
-{
-    /// Construct a new `SeqIteratorVisitor<Iter>`.
-    #[inline]
-    pub fn new(iter: Iter, len: Option<usize>) -> SeqIteratorVisitor<Iter> {
-        SeqIteratorVisitor {
-            iter: iter,
-            len: len,
-        }
-    }
-}
-
-impl<T, Iter> SeqVisitor for SeqIteratorVisitor<Iter>
-    where T: Serialize,
-          Iter: Iterator<Item=T>,
-{
-    #[inline]
-    fn visit<S>(&mut self, serializer: &mut S) -> Result<Option<()>, S::Error>
-        where S: Serializer,
-    {
-        match self.iter.next() {
-            Some(value) => {
-                try!(serializer.serialize_seq_elt(value));
-                Ok(Some(()))
-            }
-            None => Ok(None),
-        }
-    }
-
-    #[inline]
-    fn len(&self) -> Option<usize> {
-        self.len
-    }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-impl<T> Serialize for [T]
-    where T: Serialize,
-{
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_seq(SeqIteratorVisitor::new(self.iter(), Some(self.len())))
-    }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
 macro_rules! array_impls {
     ($len:expr) => {
         impl<T> Serialize for [T; $len] where T: Serialize {
             #[inline]
-            fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
+            fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
                 where S: Serializer,
             {
-                let visitor = SeqIteratorVisitor::new(self.iter(), Some($len));
-                serializer.serialize_fixed_size_array(visitor)
+                let mut seq = try!(serializer.serialize_seq_fixed_size($len));
+                for e in self {
+                    try!(seq.serialize_element(e));
+                }
+                seq.end()
             }
         }
     }
@@ -293,97 +178,97 @@ array_impls!(32);
 
 ///////////////////////////////////////////////////////////////////////////////
 
+macro_rules! serialize_seq {
+    () => {
+        #[inline]
+        fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+            where S: Serializer,
+        {
+            serializer.collect_seq(self)
+        }
+    }
+}
+
+impl<T> Serialize for [T]
+    where T: Serialize
+{
+    serialize_seq!();
+}
+
 #[cfg(any(feature = "std", feature = "collections"))]
 impl<T> Serialize for BinaryHeap<T>
     where T: Serialize + Ord
 {
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_seq(SeqIteratorVisitor::new(self.iter(), Some(self.len())))
-    }
+    serialize_seq!();
 }
 
 #[cfg(any(feature = "std", feature = "collections"))]
 impl<T> Serialize for BTreeSet<T>
-    where T: Serialize + Ord,
+    where T: Serialize + Ord
 {
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_seq(SeqIteratorVisitor::new(self.iter(), Some(self.len())))
-    }
-}
-
-#[cfg(all(feature = "nightly", feature = "collections"))]
-impl<T> Serialize for EnumSet<T>
-    where T: Serialize + CLike
-{
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_seq(SeqIteratorVisitor::new(self.iter(), Some(self.len())))
-    }
+    serialize_seq!();
 }
 
 #[cfg(feature = "std")]
-impl<T> Serialize for HashSet<T>
+impl<T, H> Serialize for HashSet<T, H>
     where T: Serialize + Eq + Hash,
+          H: BuildHasher
 {
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_seq(SeqIteratorVisitor::new(self.iter(), Some(self.len())))
-    }
+    serialize_seq!();
 }
 
 #[cfg(any(feature = "std", feature = "collections"))]
 impl<T> Serialize for LinkedList<T>
-    where T: Serialize,
+    where T: Serialize
 {
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_seq(SeqIteratorVisitor::new(self.iter(), Some(self.len())))
-    }
+    serialize_seq!();
 }
 
-#[cfg(feature = "nightly")]
+#[cfg(any(feature = "std", feature = "collections"))]
+impl<T> Serialize for Vec<T>
+    where T: Serialize
+{
+    serialize_seq!();
+}
+
+#[cfg(any(feature = "std", feature = "collections"))]
+impl<T> Serialize for VecDeque<T>
+    where T: Serialize
+{
+    serialize_seq!();
+}
+
+#[cfg(feature = "unstable")]
 impl<A> Serialize for ops::Range<A>
-    where A: Serialize + Clone + iter::Step + num::One,
-          for<'a> &'a A: ops::Add<&'a A, Output = A>,
+    where ops::Range<A>: ExactSizeIterator + iter::Iterator<Item = A> + Clone,
+          A: Serialize
 {
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
-        let len = iter::Step::steps_between(&self.start, &self.end, &A::one());
-        serializer.serialize_seq(SeqIteratorVisitor::new(self.clone(), len))
+        let mut seq = try!(serializer.serialize_seq(Some(self.len())));
+        for e in self.clone() {
+            try!(seq.serialize_element(&e));
+        }
+        seq.end()
     }
 }
 
-#[cfg(any(feature = "std", feature = "collections"))]
-impl<T> Serialize for Vec<T> where T: Serialize {
+#[cfg(feature = "unstable")]
+impl<A> Serialize for ops::RangeInclusive<A>
+    where ops::RangeInclusive<A>: ExactSizeIterator + iter::Iterator<Item = A> + Clone,
+          A: Serialize
+{
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
-        (&self[..]).serialize(serializer)
-    }
-}
-
-#[cfg(any(feature = "std", feature = "collections"))]
-impl<T> Serialize for VecDeque<T> where T: Serialize {
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_seq(SeqIteratorVisitor::new(self.iter(), Some(self.len())))
+        let mut seq = try!(serializer.serialize_seq(Some(self.len())));
+        for e in self.clone() {
+            try!(seq.serialize_element(&e));
+        }
+        seq.end()
     }
 }
 
@@ -391,8 +276,8 @@ impl<T> Serialize for VecDeque<T> where T: Serialize {
 
 impl Serialize for () {
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         serializer.serialize_unit()
     }
@@ -400,11 +285,6 @@ impl Serialize for () {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-// FIXME(rust #19630) Remove this work-around
-macro_rules! e {
-    ($e:expr) => { $e }
-}
-
 macro_rules! tuple_impls {
     ($(
         $TupleVisitor:ident ($len:expr, $($T:ident),+) {
@@ -412,52 +292,18 @@ macro_rules! tuple_impls {
         }
     )+) => {
         $(
-            /// A tuple visitor.
-            pub struct $TupleVisitor<'a, $($T: 'a),+> {
-                tuple: &'a ($($T,)+),
-                state: u8,
-            }
-
-            impl<'a, $($T: 'a),+> $TupleVisitor<'a, $($T),+> {
-                /// Construct a new, empty `TupleVisitor`.
-                pub fn new(tuple: &'a ($($T,)+)) -> $TupleVisitor<'a, $($T),+> {
-                    $TupleVisitor {
-                        tuple: tuple,
-                        state: 0,
-                    }
-                }
-            }
-
-            impl<'a, $($T),+> SeqVisitor for $TupleVisitor<'a, $($T),+>
-                where $($T: Serialize),+
-            {
-                fn visit<S>(&mut self, serializer: &mut S) -> Result<Option<()>, S::Error>
-                    where S: Serializer,
-                {
-                    match self.state {
-                        $(
-                            $state => {
-                                self.state += 1;
-                                Ok(Some(try!(serializer.serialize_tuple_elt(&e!(self.tuple.$idx)))))
-                            }
-                        )+
-                        _ => {
-                            Ok(None)
-                        }
-                    }
-                }
-
-                fn len(&self) -> Option<usize> {
-                    Some($len)
-                }
-            }
-
             impl<$($T),+> Serialize for ($($T,)+)
                 where $($T: Serialize),+
             {
                 #[inline]
-                fn serialize<S: Serializer>(&self, serializer: &mut S) -> Result<(), S::Error> {
-                    serializer.serialize_tuple($TupleVisitor::new(self))
+                fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+                    where S: Serializer,
+                {
+                    let mut tuple = try!(serializer.serialize_tuple($len));
+                    $(
+                        try!(tuple.serialize_element(&self.$idx));
+                    )+
+                    tuple.end()
                 }
             }
         )+
@@ -567,157 +413,171 @@ tuple_impls! {
         10 => 10,
         11 => 11,
     }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-/// A `serde::Visitor` for (key, value) map iterators.
-///
-/// # Examples
-///
-/// ```
-/// use std::collections::HashMap;
-/// use serde::{Serialize, Serializer};
-/// use serde::ser::impls::MapIteratorVisitor;
-///
-/// struct Map(HashMap<u32, u32>);
-///
-/// impl Serialize for Map {
-///     fn serialize<S>(&self, ser: &mut S) -> Result<(), S::Error>
-///         where S: Serializer,
-///     {
-///         ser.serialize_map(MapIteratorVisitor::new(
-///             self.0.iter(),
-///             Some(self.0.len()),
-///         ))
-///     }
-/// }
-/// ```
-pub struct MapIteratorVisitor<Iter> {
-    iter: Iter,
-    len: Option<usize>,
-}
-
-impl<K, V, Iter> MapIteratorVisitor<Iter>
-    where Iter: Iterator<Item=(K, V)>
-{
-    /// Construct a new `MapIteratorVisitor<Iter>`.
-    #[inline]
-    pub fn new(iter: Iter, len: Option<usize>) -> MapIteratorVisitor<Iter> {
-        MapIteratorVisitor {
-            iter: iter,
-            len: len,
-        }
+    TupleVisitor13 (13, T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12) {
+        0 => 0,
+        1 => 1,
+        2 => 2,
+        3 => 3,
+        4 => 4,
+        5 => 5,
+        6 => 6,
+        7 => 7,
+        8 => 8,
+        9 => 9,
+        10 => 10,
+        11 => 11,
+        12 => 12,
     }
-}
-
-impl<K, V, I> MapVisitor for MapIteratorVisitor<I>
-    where K: Serialize,
-          V: Serialize,
-          I: Iterator<Item=(K, V)>,
-{
-    #[inline]
-    fn visit<S>(&mut self, serializer: &mut S) -> Result<Option<()>, S::Error>
-        where S: Serializer,
-    {
-        match self.iter.next() {
-            Some((key, value)) => {
-                try!(serializer.serialize_map_elt(key, value));
-                Ok(Some(()))
-            }
-            None => Ok(None)
-        }
+    TupleVisitor14 (14, T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13) {
+        0 => 0,
+        1 => 1,
+        2 => 2,
+        3 => 3,
+        4 => 4,
+        5 => 5,
+        6 => 6,
+        7 => 7,
+        8 => 8,
+        9 => 9,
+        10 => 10,
+        11 => 11,
+        12 => 12,
+        13 => 13,
     }
-
-    #[inline]
-    fn len(&self) -> Option<usize> {
-        self.len
+    TupleVisitor15 (15, T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14) {
+        0 => 0,
+        1 => 1,
+        2 => 2,
+        3 => 3,
+        4 => 4,
+        5 => 5,
+        6 => 6,
+        7 => 7,
+        8 => 8,
+        9 => 9,
+        10 => 10,
+        11 => 11,
+        12 => 12,
+        13 => 13,
+        14 => 14,
+    }
+    TupleVisitor16 (16, T0, T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15) {
+        0 => 0,
+        1 => 1,
+        2 => 2,
+        3 => 3,
+        4 => 4,
+        5 => 5,
+        6 => 6,
+        7 => 7,
+        8 => 8,
+        9 => 9,
+        10 => 10,
+        11 => 11,
+        12 => 12,
+        13 => 13,
+        14 => 14,
+        15 => 15,
     }
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
+macro_rules! serialize_map {
+    () => {
+        #[inline]
+        fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+            where S: Serializer,
+        {
+            serializer.collect_map(self)
+        }
+    }
+}
+
 #[cfg(any(feature = "std", feature = "collections"))]
 impl<K, V> Serialize for BTreeMap<K, V>
     where K: Serialize + Ord,
-          V: Serialize,
+          V: Serialize
 {
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_map(MapIteratorVisitor::new(self.iter(), Some(self.len())))
-    }
+    serialize_map!();
 }
 
 #[cfg(feature = "std")]
-impl<K, V> Serialize for HashMap<K, V>
+impl<K, V, H> Serialize for HashMap<K, V, H>
     where K: Serialize + Eq + Hash,
           V: Serialize,
+          H: BuildHasher
 {
-    #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
-    {
-        serializer.serialize_map(MapIteratorVisitor::new(self.iter(), Some(self.len())))
-    }
+    serialize_map!();
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
-impl<'a, T: ?Sized> Serialize for &'a T where T: Serialize {
+impl<'a, T: ?Sized> Serialize for &'a T
+    where T: Serialize
+{
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         (**self).serialize(serializer)
     }
 }
 
-impl<'a, T: ?Sized> Serialize for &'a mut T where T: Serialize {
+impl<'a, T: ?Sized> Serialize for &'a mut T
+    where T: Serialize
+{
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         (**self).serialize(serializer)
     }
 }
 
 #[cfg(any(feature = "std", feature = "alloc"))]
-impl<T: ?Sized> Serialize for Box<T> where T: Serialize {
+impl<T: ?Sized> Serialize for Box<T>
+    where T: Serialize
+{
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         (**self).serialize(serializer)
     }
 }
 
 #[cfg(any(feature = "std", feature = "alloc"))]
-impl<T> Serialize for Rc<T> where T: Serialize, {
+impl<T> Serialize for Rc<T>
+    where T: Serialize
+{
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         (**self).serialize(serializer)
     }
 }
 
 #[cfg(any(feature = "std", feature = "alloc"))]
-impl<T> Serialize for Arc<T> where T: Serialize, {
+impl<T> Serialize for Arc<T>
+    where T: Serialize
+{
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         (**self).serialize(serializer)
     }
 }
 
 #[cfg(any(feature = "std", feature = "collections"))]
-impl<'a, T: ?Sized> Serialize for Cow<'a, T> where T: Serialize + ToOwned, {
+impl<'a, T: ?Sized> Serialize for Cow<'a, T>
+    where T: Serialize + ToOwned
+{
     #[inline]
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         (**self).serialize(serializer)
     }
@@ -725,12 +585,15 @@ impl<'a, T: ?Sized> Serialize for Cow<'a, T> where T: Serialize + ToOwned, {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-impl<T, E> Serialize for Result<T, E> where T: Serialize, E: Serialize {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error> where S: Serializer {
+impl<T, E> Serialize for Result<T, E>
+    where T: Serialize,
+          E: Serialize
+{
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
         match *self {
-            Result::Ok(ref value) => {
-                serializer.serialize_newtype_variant("Result", 0, "Ok", value)
-            }
+            Result::Ok(ref value) => serializer.serialize_newtype_variant("Result", 0, "Ok", value),
             Result::Err(ref value) => {
                 serializer.serialize_newtype_variant("Result", 1, "Err", value)
             }
@@ -740,33 +603,52 @@ impl<T, E> Serialize for Result<T, E> where T: Serialize, E: Serialize {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-#[cfg(all(feature = "std", feature = "nightly"))]
+#[cfg(feature = "std")]
+impl Serialize for Duration {
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
+        use super::SerializeStruct;
+        let mut state = try!(serializer.serialize_struct("Duration", 2));
+        try!(state.serialize_field("secs", &self.as_secs()));
+        try!(state.serialize_field("nanos", &self.subsec_nanos()));
+        state.end()
+    }
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+#[cfg(feature = "std")]
 impl Serialize for net::IpAddr {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         match *self {
-            net::IpAddr::V4(ref addr) => addr.serialize(serializer),
-            net::IpAddr::V6(ref addr) => addr.serialize(serializer),
+            net::IpAddr::V4(ref a) => a.serialize(serializer),
+            net::IpAddr::V6(ref a) => a.serialize(serializer),
         }
     }
 }
 
 #[cfg(feature = "std")]
 impl Serialize for net::Ipv4Addr {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
-        self.to_string().serialize(serializer)
+        /// "101.102.103.104".len()
+        const MAX_LEN: usize = 15;
+        serialize_display_bounded_length!(self, MAX_LEN, serializer)
     }
 }
 
 #[cfg(feature = "std")]
 impl Serialize for net::Ipv6Addr {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
-        self.to_string().serialize(serializer)
+        /// "1000:1002:1003:1004:1005:1006:1007:1008".len()
+        const MAX_LEN: usize = 39;
+        serialize_display_bounded_length!(self, MAX_LEN, serializer)
     }
 }
 
@@ -774,8 +656,8 @@ impl Serialize for net::Ipv6Addr {
 
 #[cfg(feature = "std")]
 impl Serialize for net::SocketAddr {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         match *self {
             net::SocketAddr::V4(ref addr) => addr.serialize(serializer),
@@ -786,19 +668,23 @@ impl Serialize for net::SocketAddr {
 
 #[cfg(feature = "std")]
 impl Serialize for net::SocketAddrV4 {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
-        self.to_string().serialize(serializer)
+        /// "101.102.103.104:65000".len()
+        const MAX_LEN: usize = 21;
+        serialize_display_bounded_length!(self, MAX_LEN, serializer)
     }
 }
 
 #[cfg(feature = "std")]
 impl Serialize for net::SocketAddrV6 {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
-        self.to_string().serialize(serializer)
+        /// "[1000:1002:1003:1004:1005:1006:1007:1008]:65000".len()
+        const MAX_LEN: usize = 47;
+        serialize_display_bounded_length!(self, MAX_LEN, serializer)
     }
 }
 
@@ -806,28 +692,32 @@ impl Serialize for net::SocketAddrV6 {
 
 #[cfg(feature = "std")]
 impl Serialize for path::Path {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         match self.to_str() {
             Some(s) => s.serialize(serializer),
-            None => Err(Error::invalid_value("Path contains invalid UTF-8 characters")),
+            None => Err(Error::custom("path contains invalid UTF-8 characters")),
         }
     }
 }
 
 #[cfg(feature = "std")]
 impl Serialize for path::PathBuf {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error>
-        where S: Serializer,
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
     {
         self.as_path().serialize(serializer)
     }
 }
 
-#[cfg(feature = "nightly")]
-impl<T> Serialize for NonZero<T> where T: Serialize + Zeroable {
-    fn serialize<S>(&self, serializer: &mut S) -> Result<(), S::Error> where S: Serializer {
+#[cfg(feature = "unstable")]
+impl<T> Serialize for NonZero<T>
+    where T: Serialize + Zeroable
+{
+    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
+        where S: Serializer
+    {
         (**self).serialize(serializer)
     }
 }

serde/src/ser/impossible.rs

@@ -0,0 +1,156 @@
+//! This module contains `Impossible` serializer and its implementations.
+
+use core::marker::PhantomData;
+
+use ser::{self, Serialize, SerializeSeq, SerializeTuple, SerializeTupleStruct,
+          SerializeTupleVariant, SerializeMap, SerializeStruct, SerializeStructVariant};
+
+/// Helper type for implementing a `Serializer` that does not support
+/// serializing one of the compound types.
+///
+/// This type cannot be instantiated, but implements every one of the traits
+/// corresponding to the `Serializer` compound types: `SerializeSeq`,
+/// `SerializeTuple`, `SerializeTupleStruct`, `SerializeTupleVariant`,
+/// `SerializeMap`, `SerializeStruct`, and `SerializeStructVariant`.
+///
+/// ```rust,ignore
+/// impl Serializer for MySerializer {
+///     type Ok = ();
+///     type Error = Error;
+///
+///     type SerializeSeq = Impossible<(), Error>;
+///     /* other associated types */
+///
+///     /// This data format does not support serializing sequences.
+///     fn serialize_seq(self,
+///                      len: Option<usize>)
+///                      -> Result<Self::SerializeSeq, Error> {
+///         // Given Impossible cannot be instantiated, the only
+///         // thing we can do here is to return an error.
+///         Err(...)
+///     }
+///
+///     /* other Serializer methods */
+/// }
+/// ```
+pub struct Impossible<Ok, E> {
+    void: Void,
+    _marker: PhantomData<(Ok, E)>,
+}
+
+enum Void {}
+
+impl<Ok, E> SerializeSeq for Impossible<Ok, E>
+    where E: ser::Error
+{
+    type Ok = Ok;
+    type Error = E;
+
+    fn serialize_element<T: ?Sized + Serialize>(&mut self, _value: &T) -> Result<(), E> {
+        match self.void {}
+    }
+
+    fn end(self) -> Result<Ok, E> {
+        match self.void {}
+    }
+}
+
+impl<Ok, E> SerializeTuple for Impossible<Ok, E>
+    where E: ser::Error
+{
+    type Ok = Ok;
+    type Error = E;
+
+    fn serialize_element<T: ?Sized + Serialize>(&mut self, _value: &T) -> Result<(), E> {
+        match self.void {}
+    }
+
+    fn end(self) -> Result<Ok, E> {
+        match self.void {}
+    }
+}
+
+impl<Ok, E> SerializeTupleStruct for Impossible<Ok, E>
+    where E: ser::Error
+{
+    type Ok = Ok;
+    type Error = E;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self, _value: &T) -> Result<(), E> {
+        match self.void {}
+    }
+
+    fn end(self) -> Result<Ok, E> {
+        match self.void {}
+    }
+}
+
+impl<Ok, E> SerializeTupleVariant for Impossible<Ok, E>
+    where E: ser::Error
+{
+    type Ok = Ok;
+    type Error = E;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self, _value: &T) -> Result<(), E> {
+        match self.void {}
+    }
+
+    fn end(self) -> Result<Ok, E> {
+        match self.void {}
+    }
+}
+
+impl<Ok, E> SerializeMap for Impossible<Ok, E>
+    where E: ser::Error
+{
+    type Ok = Ok;
+    type Error = E;
+
+    fn serialize_key<T: ?Sized + Serialize>(&mut self, _key: &T) -> Result<(), E> {
+        match self.void {}
+    }
+
+    fn serialize_value<T: ?Sized + Serialize>(&mut self, _value: &T) -> Result<(), E> {
+        match self.void {}
+    }
+
+    fn end(self) -> Result<Ok, E> {
+        match self.void {}
+    }
+}
+
+impl<Ok, E> SerializeStruct for Impossible<Ok, E>
+    where E: ser::Error
+{
+    type Ok = Ok;
+    type Error = E;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self,
+                                              _key: &'static str,
+                                              _value: &T)
+                                              -> Result<(), E> {
+        match self.void {}
+    }
+
+    fn end(self) -> Result<Ok, E> {
+        match self.void {}
+    }
+}
+
+impl<Ok, E> SerializeStructVariant for Impossible<Ok, E>
+    where E: ser::Error
+{
+    type Ok = Ok;
+    type Error = E;
+
+    fn serialize_field<T: ?Sized + Serialize>(&mut self,
+                                              _key: &'static str,
+                                              _value: &T)
+                                              -> Result<(), E> {
+        match self.void {}
+    }
+
+    fn end(self) -> Result<Ok, E> {
+        match self.void {}
+    }
+}

serde/src/ser/private.rs

@@ -0,0 +1,313 @@
+use core::fmt::{self, Display};
+
+use ser::{self, Serialize, Serializer, SerializeMap, SerializeStruct, Impossible};
+
+#[cfg(any(feature = "std", feature = "collections"))]
+use ser::content::{SerializeTupleVariantAsMapValue, SerializeStructVariantAsMapValue};
+
+/// Not public API.
+pub fn serialize_tagged_newtype<S, T>(serializer: S,
+                                      type_ident: &'static str,
+                                      variant_ident: &'static str,
+                                      tag: &'static str,
+                                      variant_name: &'static str,
+                                      value: &T)
+                                      -> Result<S::Ok, S::Error>
+    where S: Serializer,
+          T: Serialize
+{
+    value.serialize(TaggedSerializer {
+        type_ident: type_ident,
+        variant_ident: variant_ident,
+        tag: tag,
+        variant_name: variant_name,
+        delegate: serializer,
+    })
+}
+
+struct TaggedSerializer<S> {
+    type_ident: &'static str,
+    variant_ident: &'static str,
+    tag: &'static str,
+    variant_name: &'static str,
+    delegate: S,
+}
+
+enum Unsupported {
+    Boolean,
+    Integer,
+    Float,
+    Char,
+    String,
+    ByteArray,
+    Optional,
+    Unit,
+    UnitStruct,
+    Sequence,
+    Tuple,
+    TupleStruct,
+    #[cfg(not(any(feature = "std", feature = "collections")))]
+    Enum,
+}
+
+impl Display for Unsupported {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        match *self {
+            Unsupported::Boolean => formatter.write_str("a boolean"),
+            Unsupported::Integer => formatter.write_str("an integer"),
+            Unsupported::Float => formatter.write_str("a float"),
+            Unsupported::Char => formatter.write_str("a char"),
+            Unsupported::String => formatter.write_str("a string"),
+            Unsupported::ByteArray => formatter.write_str("a byte array"),
+            Unsupported::Optional => formatter.write_str("an optional"),
+            Unsupported::Unit => formatter.write_str("unit"),
+            Unsupported::UnitStruct => formatter.write_str("a unit struct"),
+            Unsupported::Sequence => formatter.write_str("a sequence"),
+            Unsupported::Tuple => formatter.write_str("a tuple"),
+            Unsupported::TupleStruct => formatter.write_str("a tuple struct"),
+            #[cfg(not(any(feature = "std", feature = "collections")))]
+            Unsupported::Enum => formatter.write_str("an enum"),
+        }
+    }
+}
+
+struct Error {
+    type_ident: &'static str,
+    variant_ident: &'static str,
+    ty: Unsupported,
+}
+
+impl Display for Error {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        write!(formatter,
+               "cannot serialize tagged newtype variant {}::{} containing {}",
+               self.type_ident, self.variant_ident, self.ty)
+    }
+}
+
+impl<S> TaggedSerializer<S>
+    where S: Serializer
+{
+    fn bad_type(self, what: Unsupported) -> S::Error {
+        ser::Error::custom(Error {
+            type_ident: self.type_ident,
+            variant_ident: self.variant_ident,
+            ty: what,
+        })
+    }
+}
+
+impl<S> Serializer for TaggedSerializer<S>
+    where S: Serializer
+{
+    type Ok = S::Ok;
+    type Error = S::Error;
+
+    type SerializeSeq = Impossible<S::Ok, S::Error>;
+    type SerializeTuple = Impossible<S::Ok, S::Error>;
+    type SerializeTupleStruct = Impossible<S::Ok, S::Error>;
+    type SerializeMap = S::SerializeMap;
+    type SerializeStruct = S::SerializeStruct;
+
+    #[cfg(not(any(feature = "std", feature = "collections")))]
+    type SerializeTupleVariant = Impossible<S::Ok, S::Error>;
+    #[cfg(any(feature = "std", feature = "collections"))]
+    type SerializeTupleVariant = SerializeTupleVariantAsMapValue<S::SerializeMap>;
+
+    #[cfg(not(any(feature = "std", feature = "collections")))]
+    type SerializeStructVariant = Impossible<S::Ok, S::Error>;
+    #[cfg(any(feature = "std", feature = "collections"))]
+    type SerializeStructVariant = SerializeStructVariantAsMapValue<S::SerializeMap>;
+
+    fn serialize_bool(self, _: bool) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Boolean))
+    }
+
+    fn serialize_i8(self, _: i8) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Integer))
+    }
+
+    fn serialize_i16(self, _: i16) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Integer))
+    }
+
+    fn serialize_i32(self, _: i32) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Integer))
+    }
+
+    fn serialize_i64(self, _: i64) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Integer))
+    }
+
+    fn serialize_u8(self, _: u8) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Integer))
+    }
+
+    fn serialize_u16(self, _: u16) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Integer))
+    }
+
+    fn serialize_u32(self, _: u32) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Integer))
+    }
+
+    fn serialize_u64(self, _: u64) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Integer))
+    }
+
+    fn serialize_f32(self, _: f32) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Float))
+    }
+
+    fn serialize_f64(self, _: f64) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Float))
+    }
+
+    fn serialize_char(self, _: char) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Char))
+    }
+
+    fn serialize_str(self, _: &str) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::String))
+    }
+
+    fn serialize_bytes(self, _: &[u8]) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::ByteArray))
+    }
+
+    fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Optional))
+    }
+
+    fn serialize_some<T: ?Sized>(self, _: &T) -> Result<Self::Ok, Self::Error>
+        where T: Serialize
+    {
+        Err(self.bad_type(Unsupported::Optional))
+    }
+
+    fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::Unit))
+    }
+
+    fn serialize_unit_struct(self, _: &'static str) -> Result<Self::Ok, Self::Error> {
+        Err(self.bad_type(Unsupported::UnitStruct))
+    }
+
+    fn serialize_unit_variant(self,
+                              _: &'static str,
+                              _: usize,
+                              inner_variant: &'static str)
+                              -> Result<Self::Ok, Self::Error> {
+        let mut map = try!(self.delegate.serialize_map(Some(2)));
+        try!(map.serialize_entry(self.tag, self.variant_name));
+        try!(map.serialize_entry(inner_variant, &()));
+        map.end()
+    }
+
+    fn serialize_newtype_struct<T: ?Sized>(self,
+                                           _: &'static str,
+                                           value: &T)
+                                           -> Result<Self::Ok, Self::Error>
+        where T: Serialize
+    {
+        value.serialize(self)
+    }
+
+    fn serialize_newtype_variant<T: ?Sized>(self,
+                                            _: &'static str,
+                                            _: usize,
+                                            inner_variant: &'static str,
+                                            inner_value: &T)
+                                            -> Result<Self::Ok, Self::Error>
+        where T: Serialize
+    {
+        let mut map = try!(self.delegate.serialize_map(Some(2)));
+        try!(map.serialize_entry(self.tag, self.variant_name));
+        try!(map.serialize_entry(inner_variant, inner_value));
+        map.end()
+    }
+
+    fn serialize_seq(self, _: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
+        Err(self.bad_type(Unsupported::Sequence))
+    }
+
+    fn serialize_seq_fixed_size(self, _: usize) -> Result<Self::SerializeSeq, Self::Error> {
+        Err(self.bad_type(Unsupported::Sequence))
+    }
+
+    fn serialize_tuple(self, _: usize) -> Result<Self::SerializeTuple, Self::Error> {
+        Err(self.bad_type(Unsupported::Tuple))
+    }
+
+    fn serialize_tuple_struct(self,
+                              _: &'static str,
+                              _: usize)
+                              -> Result<Self::SerializeTupleStruct, Self::Error> {
+        Err(self.bad_type(Unsupported::TupleStruct))
+    }
+
+    #[cfg(not(any(feature = "std", feature = "collections")))]
+    fn serialize_tuple_variant(self,
+                               _: &'static str,
+                               _: usize,
+                               _: &'static str,
+                               _: usize)
+                               -> Result<Self::SerializeTupleVariant, Self::Error> {
+        // Lack of push-based serialization means we need to buffer the content
+        // of the tuple variant, so it requires std.
+        Err(self.bad_type(Unsupported::Enum))
+    }
+
+    #[cfg(any(feature = "std", feature = "collections"))]
+    fn serialize_tuple_variant(self,
+                               _: &'static str,
+                               _: usize,
+                               inner_variant: &'static str,
+                               len: usize)
+                               -> Result<Self::SerializeTupleVariant, Self::Error> {
+        let mut map = try!(self.delegate.serialize_map(Some(2)));
+        try!(map.serialize_entry(self.tag, self.variant_name));
+        try!(map.serialize_key(inner_variant));
+        Ok(SerializeTupleVariantAsMapValue::new(map, inner_variant, len))
+    }
+
+    fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
+        let mut map = try!(self.delegate.serialize_map(len.map(|len| len + 1)));
+        try!(map.serialize_entry(self.tag, self.variant_name));
+        Ok(map)
+    }
+
+    fn serialize_struct(self,
+                        name: &'static str,
+                        len: usize)
+                        -> Result<Self::SerializeStruct, Self::Error> {
+        let mut state = try!(self.delegate.serialize_struct(name, len + 1));
+        try!(state.serialize_field(self.tag, self.variant_name));
+        Ok(state)
+    }
+
+    #[cfg(not(any(feature = "std", feature = "collections")))]
+    fn serialize_struct_variant(self,
+                                _: &'static str,
+                                _: usize,
+                                _: &'static str,
+                                _: usize)
+                                -> Result<Self::SerializeStructVariant, Self::Error> {
+        // Lack of push-based serialization means we need to buffer the content
+        // of the struct variant, so it requires std.
+        Err(self.bad_type(Unsupported::Enum))
+    }
+
+    #[cfg(any(feature = "std", feature = "collections"))]
+    fn serialize_struct_variant(self,
+                                _: &'static str,
+                                _: usize,
+                                inner_variant: &'static str,
+                                len: usize)
+                                -> Result<Self::SerializeStructVariant, Self::Error> {
+        let mut map = try!(self.delegate.serialize_map(Some(2)));
+        try!(map.serialize_entry(self.tag, self.variant_name));
+        try!(map.serialize_key(inner_variant));
+        Ok(SerializeStructVariantAsMapValue::new(map, inner_variant, len))
+    }
+}

serde/src/utils.rs

@@ -1,12 +1,12 @@
 //! Private utility functions
 
-const TAG_CONT: u8    = 0b1000_0000;
-const TAG_TWO_B: u8   = 0b1100_0000;
+const TAG_CONT: u8 = 0b1000_0000;
+const TAG_TWO_B: u8 = 0b1100_0000;
 const TAG_THREE_B: u8 = 0b1110_0000;
-const TAG_FOUR_B: u8  = 0b1111_0000;
-const MAX_ONE_B: u32   =     0x80;
-const MAX_TWO_B: u32   =    0x800;
-const MAX_THREE_B: u32 =  0x10000;
+const TAG_FOUR_B: u8 = 0b1111_0000;
+const MAX_ONE_B: u32 = 0x80;
+const MAX_TWO_B: u32 = 0x800;
+const MAX_THREE_B: u32 = 0x10000;
 
 #[inline]
 pub fn encode_utf8(c: char) -> EncodeUtf8 {
@@ -21,17 +21,20 @@ pub fn encode_utf8(c: char) -> EncodeUtf8 {
         2
     } else if code < MAX_THREE_B {
         buf[1] = (code >> 12 & 0x0F) as u8 | TAG_THREE_B;
-        buf[2] = (code >>  6 & 0x3F) as u8 | TAG_CONT;
+        buf[2] = (code >> 6 & 0x3F) as u8 | TAG_CONT;
         buf[3] = (code & 0x3F) as u8 | TAG_CONT;
         1
     } else {
         buf[0] = (code >> 18 & 0x07) as u8 | TAG_FOUR_B;
         buf[1] = (code >> 12 & 0x3F) as u8 | TAG_CONT;
-        buf[2] = (code >>  6 & 0x3F) as u8 | TAG_CONT;
+        buf[2] = (code >> 6 & 0x3F) as u8 | TAG_CONT;
         buf[3] = (code & 0x3F) as u8 | TAG_CONT;
         0
     };
-    EncodeUtf8 { buf: buf, pos: pos }
+    EncodeUtf8 {
+        buf: buf,
+        pos: pos,
+    }
 }
 
 pub struct EncodeUtf8 {
@@ -40,30 +43,29 @@ pub struct EncodeUtf8 {
 }
 
 impl EncodeUtf8 {
-    /// Returns the remaining bytes of this iterator as a slice.
-    pub fn as_slice(&self) -> &[u8] {
-        &self.buf[self.pos..]
+    // FIXME: use this from_utf8_unchecked, since we know it can never fail
+    pub fn as_str(&self) -> &str {
+        ::core::str::from_utf8(&self.buf[self.pos..]).unwrap()
     }
 }
 
 #[allow(non_upper_case_globals)]
-const Pattern_White_Space_table: &'static [(char, char)] = &[
-    ('\u{9}', '\u{d}'), ('\u{20}', '\u{20}'), ('\u{85}', '\u{85}'), ('\u{200e}', '\u{200f}'),
-    ('\u{2028}', '\u{2029}')
-];
+const Pattern_White_Space_table: &'static [(char, char)] = &[('\u{9}', '\u{d}'),
+                                                             ('\u{20}', '\u{20}'),
+                                                             ('\u{85}', '\u{85}'),
+                                                             ('\u{200e}', '\u{200f}'),
+                                                             ('\u{2028}', '\u{2029}')];
 
 fn bsearch_range_table(c: char, r: &'static [(char, char)]) -> bool {
     use core::cmp::Ordering::{Equal, Less, Greater};
-    r.binary_search_by(|&(lo, hi)| {
-        if c < lo {
+    r.binary_search_by(|&(lo, hi)| if c < lo {
             Greater
         } else if hi < c {
             Less
         } else {
             Equal
-        }
-    })
-    .is_ok()
+        })
+        .is_ok()
 }
 
 #[allow(non_snake_case)]

serde_codegen/Cargo.toml

@@ -1,29 +0,0 @@
-[package]
-name = "serde_codegen"
-version = "0.7.6"
-authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
-license = "MIT/Apache-2.0"
-description = "Macros to auto-generate implementations for the serde framework"
-repository = "https://github.com/serde-rs/serde"
-documentation = "https://github.com/serde-rs/serde"
-keywords = ["serde", "serialization"]
-build = "build.rs"
-include = ["Cargo.toml", "build.rs", "src/**/*.rs"]
-
-[features]
-default = ["with-syntex"]
-nightly = ["quasi_macros"]
-nightly-testing = ["clippy"]
-with-syntex = ["quasi/with-syntex", "quasi_codegen", "quasi_codegen/with-syntex", "syntex", "syntex_syntax"]
-
-[build-dependencies]
-quasi_codegen = { version = "^0.11.0", optional = true }
-syntex = { version = "^0.33.0", optional = true }
-
-[dependencies]
-aster = { version = "^0.17.0", default-features = false }
-clippy = { version = "^0.*", optional = true }
-quasi = { version = "^0.11.0", default-features = false }
-quasi_macros = { version = "^0.11.0", optional = true }
-syntex = { version = "^0.33.0", optional = true }
-syntex_syntax = { version = "^0.33.0", optional = true }

serde_codegen/build.rs

@@ -1,28 +0,0 @@
-#[cfg(feature = "with-syntex")]
-mod inner {
-    extern crate syntex;
-    extern crate quasi_codegen;
-
-    use std::env;
-    use std::path::Path;
-
-    pub fn main() {
-        let out_dir = env::var_os("OUT_DIR").unwrap();
-        let mut registry = syntex::Registry::new();
-        quasi_codegen::register(&mut registry);
-
-        let src = Path::new("src/lib.rs.in");
-        let dst = Path::new(&out_dir).join("lib.rs");
-
-        registry.expand("", &src, &dst).unwrap();
-    }
-}
-
-#[cfg(not(feature = "with-syntex"))]
-mod inner {
-    pub fn main() {}
-}
-
-fn main() {
-    inner::main();
-}

serde_codegen/src/attr.rs

@@ -1,485 +0,0 @@
-use std::rc::Rc;
-use syntax::ast::{self, TokenTree};
-use syntax::attr;
-use syntax::codemap::Span;
-use syntax::ext::base::ExtCtxt;
-use syntax::fold::Folder;
-use syntax::parse::parser::PathStyle;
-use syntax::parse::token::{self, InternedString};
-use syntax::parse;
-use syntax::print::pprust::{lit_to_string, meta_item_to_string};
-use syntax::ptr::P;
-
-use aster::AstBuilder;
-
-use error::Error;
-
-#[derive(Debug)]
-pub struct Name {
-    ident: ast::Ident,
-    serialize_name: Option<InternedString>,
-    deserialize_name: Option<InternedString>,
-}
-
-impl Name {
-    fn new(ident: ast::Ident) -> Self {
-        Name {
-            ident: ident,
-            serialize_name: None,
-            deserialize_name: None,
-        }
-    }
-
-    /// Return the container name for the container when serializing.
-    pub fn serialize_name(&self) -> InternedString {
-        match self.serialize_name {
-            Some(ref name) => name.clone(),
-            None => self.ident.name.as_str(),
-        }
-    }
-
-    /// Return the container name expression for the container when deserializing.
-    pub fn serialize_name_expr(&self) -> P<ast::Expr> {
-        AstBuilder::new().expr().str(self.serialize_name())
-    }
-
-    /// Return the container name for the container when deserializing.
-    pub fn deserialize_name(&self) -> InternedString {
-        match self.deserialize_name {
-            Some(ref name) => name.clone(),
-            None => self.ident.name.as_str(),
-        }
-    }
-
-    /// Return the container name expression for the container when deserializing.
-    pub fn deserialize_name_expr(&self) -> P<ast::Expr> {
-        AstBuilder::new().expr().str(self.deserialize_name())
-    }
-}
-
-/// Represents container (e.g. struct) attribute information
-#[derive(Debug)]
-pub struct ContainerAttrs {
-    name: Name,
-    deny_unknown_fields: bool,
-}
-
-impl ContainerAttrs {
-    /// Extract out the `#[serde(...)]` attributes from an item.
-    pub fn from_item(cx: &ExtCtxt, item: &ast::Item) -> Result<Self, Error> {
-        let mut container_attrs = ContainerAttrs {
-            name: Name::new(item.ident),
-            deny_unknown_fields: false,
-        };
-
-        for meta_items in item.attrs().iter().filter_map(get_serde_meta_items) {
-            for meta_item in meta_items {
-                match meta_item.node {
-                    // Parse `#[serde(rename="foo")]`
-                    ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"rename" => {
-                        let s = try!(get_str_from_lit(cx, name, lit));
-
-                        container_attrs.name.serialize_name = Some(s.clone());
-                        container_attrs.name.deserialize_name = Some(s);
-                    }
-
-                    // Parse `#[serde(rename(serialize="foo", deserialize="bar"))]`
-                    ast::MetaItemKind::List(ref name, ref meta_items) if name == &"rename" => {
-                        let (ser_name, de_name) = try!(get_renames(cx, meta_items));
-
-                        container_attrs.name.serialize_name = ser_name;
-                        container_attrs.name.deserialize_name = de_name;
-                    }
-
-                    // Parse `#[serde(deny_unknown_fields)]`
-                    ast::MetaItemKind::Word(ref name) if name == &"deny_unknown_fields" => {
-                        container_attrs.deny_unknown_fields = true;
-                    }
-
-                    _ => {
-                        cx.span_err(
-                            meta_item.span,
-                            &format!("unknown serde container attribute `{}`",
-                                     meta_item_to_string(meta_item)));
-
-                        return Err(Error);
-                    }
-                }
-            }
-        }
-
-        Ok(container_attrs)
-    }
-
-    pub fn name(&self) -> &Name {
-        &self.name
-    }
-
-    pub fn deny_unknown_fields(&self) -> bool {
-        self.deny_unknown_fields
-    }
-}
-
-/// Represents variant attribute information
-#[derive(Debug)]
-pub struct VariantAttrs {
-    name: Name,
-}
-
-impl VariantAttrs {
-    pub fn from_variant(cx: &ExtCtxt, variant: &ast::Variant) -> Result<Self, Error> {
-        let mut variant_attrs = VariantAttrs {
-            name: Name::new(variant.node.name),
-        };
-
-        for meta_items in variant.node.attrs.iter().filter_map(get_serde_meta_items) {
-            for meta_item in meta_items {
-                match meta_item.node {
-                    // Parse `#[serde(rename="foo")]`
-                    ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"rename" => {
-                        let s = try!(get_str_from_lit(cx, name, lit));
-
-                        variant_attrs.name.serialize_name = Some(s.clone());
-                        variant_attrs.name.deserialize_name = Some(s);
-                    }
-
-                    // Parse `#[serde(rename(serialize="foo", deserialize="bar"))]`
-                    ast::MetaItemKind::List(ref name, ref meta_items) if name == &"rename" => {
-                        let (ser_name, de_name) = try!(get_renames(cx, meta_items));
-
-                        variant_attrs.name.serialize_name = ser_name;
-                        variant_attrs.name.deserialize_name = de_name;
-                    }
-
-                    _ => {
-                        cx.span_err(
-                            meta_item.span,
-                            &format!("unknown serde variant attribute `{}`",
-                                     meta_item_to_string(meta_item)));
-
-                        return Err(Error);
-                    }
-                }
-            }
-        }
-
-        Ok(variant_attrs)
-    }
-
-    pub fn name(&self) -> &Name {
-        &self.name
-    }
-}
-
-/// Represents field attribute information
-#[derive(Debug)]
-pub struct FieldAttrs {
-    name: Name,
-    skip_serializing_field: bool,
-    skip_deserializing_field: bool,
-    skip_serializing_if: Option<ast::Path>,
-    default_expr_if_missing: Option<P<ast::Expr>>,
-    serialize_with: Option<ast::Path>,
-    deserialize_with: Option<ast::Path>,
-}
-
-impl FieldAttrs {
-    /// Extract out the `#[serde(...)]` attributes from a struct field.
-    pub fn from_field(cx: &ExtCtxt,
-                      index: usize,
-                      field: &ast::StructField) -> Result<Self, Error> {
-        let builder = AstBuilder::new();
-
-        let field_ident = match field.ident {
-            Some(ident) => ident,
-            None => builder.id(index.to_string()),
-        };
-
-        let mut field_attrs = FieldAttrs {
-            name: Name::new(field_ident),
-            skip_serializing_field: false,
-            skip_deserializing_field: false,
-            skip_serializing_if: None,
-            default_expr_if_missing: None,
-            serialize_with: None,
-            deserialize_with: None,
-        };
-
-        for meta_items in field.attrs.iter().filter_map(get_serde_meta_items) {
-            for meta_item in meta_items {
-                match meta_item.node {
-                    // Parse `#[serde(rename="foo")]`
-                    ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"rename" => {
-                        let s = try!(get_str_from_lit(cx, name, lit));
-
-                        field_attrs.name.serialize_name = Some(s.clone());
-                        field_attrs.name.deserialize_name = Some(s);
-                    }
-
-                    // Parse `#[serde(rename(serialize="foo", deserialize="bar"))]`
-                    ast::MetaItemKind::List(ref name, ref meta_items) if name == &"rename" => {
-                        let (ser_name, de_name) = try!(get_renames(cx, meta_items));
-
-                        field_attrs.name.serialize_name = ser_name;
-                        field_attrs.name.deserialize_name = de_name;
-                    }
-
-                    // Parse `#[serde(default)]`
-                    ast::MetaItemKind::Word(ref name) if name == &"default" => {
-                        let default_expr = builder.expr().default();
-                        field_attrs.default_expr_if_missing = Some(default_expr);
-                    }
-
-                    // Parse `#[serde(default="...")]`
-                    ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"default" => {
-                        let wrapped_expr = wrap_default(
-                            try!(parse_lit_into_path(cx, name, lit)),
-                        );
-
-                        field_attrs.default_expr_if_missing = Some(wrapped_expr);
-                    }
-
-                    // Parse `#[serde(skip_serializing)]`
-                    ast::MetaItemKind::Word(ref name) if name == &"skip_serializing" => {
-                        field_attrs.skip_serializing_field = true;
-                    }
-
-                    // Parse `#[serde(skip_deserializing)]`
-                    ast::MetaItemKind::Word(ref name) if name == &"skip_deserializing" => {
-                        field_attrs.skip_deserializing_field = true;
-
-                        // Initialize field to Default::default() unless a different
-                        // default is specified by `#[serde(default="...")]`
-                        if field_attrs.default_expr_if_missing.is_none() {
-                            let default_expr = builder.expr().default();
-                            field_attrs.default_expr_if_missing = Some(default_expr);
-                        }
-                    }
-
-                    // Parse `#[serde(skip_serializing_if="...")]`
-                    ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"skip_serializing_if" => {
-                        let path = try!(parse_lit_into_path(cx, name, lit));
-                        field_attrs.skip_serializing_if = Some(path);
-                    }
-
-                    // Parse `#[serde(serialize_with="...")]`
-                    ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"serialize_with" => {
-                        let path = try!(parse_lit_into_path(cx, name, lit));
-                        field_attrs.serialize_with = Some(path);
-                    }
-
-                    // Parse `#[serde(deserialize_with="...")]`
-                    ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"deserialize_with" => {
-                        let path = try!(parse_lit_into_path(cx, name, lit));
-                        field_attrs.deserialize_with = Some(path);
-                    }
-
-                    _ => {
-                        cx.span_err(
-                            meta_item.span,
-                            &format!("unknown serde field attribute `{}`",
-                                     meta_item_to_string(meta_item)));
-
-                        return Err(Error);
-                    }
-                }
-            }
-        }
-
-        Ok(field_attrs)
-    }
-
-    pub fn name(&self) -> &Name {
-        &self.name
-    }
-
-    pub fn skip_serializing_field(&self) -> bool {
-        self.skip_serializing_field
-    }
-
-    pub fn skip_deserializing_field(&self) -> bool {
-        self.skip_deserializing_field
-    }
-
-    pub fn skip_serializing_if(&self) -> Option<&ast::Path> {
-        self.skip_serializing_if.as_ref()
-    }
-
-    pub fn default_expr_if_missing(&self) -> Option<&P<ast::Expr>> {
-        self.default_expr_if_missing.as_ref()
-    }
-
-    pub fn serialize_with(&self) -> Option<&ast::Path> {
-        self.serialize_with.as_ref()
-    }
-
-    pub fn deserialize_with(&self) -> Option<&ast::Path> {
-        self.deserialize_with.as_ref()
-    }
-}
-
-
-/// Zip together fields and `#[serde(...)]` attributes on those fields.
-pub fn fields_with_attrs<'a>(
-    cx: &ExtCtxt,
-    fields: &'a [ast::StructField],
-) -> Result<Vec<(&'a ast::StructField, FieldAttrs)>, Error> {
-    fields.iter()
-        .enumerate()
-        .map(|(i, field)| {
-            let attrs = try!(FieldAttrs::from_field(cx, i, field));
-            Ok((field, attrs))
-        })
-        .collect()
-}
-
-fn get_renames(cx: &ExtCtxt,
-               items: &[P<ast::MetaItem>],
-              )-> Result<(Option<InternedString>, Option<InternedString>), Error> {
-    let mut ser_name = None;
-    let mut de_name = None;
-
-    for item in items {
-        match item.node {
-            ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"serialize" => {
-                let s = try!(get_str_from_lit(cx, name, lit));
-                ser_name = Some(s);
-            }
-
-            ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"deserialize" => {
-                let s = try!(get_str_from_lit(cx, name, lit));
-                de_name = Some(s);
-            }
-
-            _ => {
-                cx.span_err(
-                    item.span,
-                    &format!("unknown rename attribute `{}`",
-                             meta_item_to_string(item)));
-
-                return Err(Error);
-            }
-        }
-    }
-
-    Ok((ser_name, de_name))
-}
-
-pub fn get_serde_meta_items(attr: &ast::Attribute) -> Option<&[P<ast::MetaItem>]> {
-    match attr.node.value.node {
-        ast::MetaItemKind::List(ref name, ref items) if name == &"serde" => {
-            attr::mark_used(&attr);
-            Some(items)
-        }
-        _ => None
-    }
-}
-
-/// This syntax folder rewrites tokens to say their spans are coming from a macro context.
-struct Respanner<'a, 'b: 'a> {
-    cx: &'a ExtCtxt<'b>,
-}
-
-impl<'a, 'b> Folder for Respanner<'a, 'b> {
-    fn fold_tt(&mut self, tt: &TokenTree) -> TokenTree {
-        match *tt {
-            TokenTree::Token(span, ref tok) => {
-                TokenTree::Token(
-                    self.new_span(span),
-                    self.fold_token(tok.clone())
-                )
-            }
-            TokenTree::Delimited(span, ref delimed) => {
-                TokenTree::Delimited(
-                    self.new_span(span),
-                    Rc::new(ast::Delimited {
-                        delim: delimed.delim,
-                        open_span: delimed.open_span,
-                        tts: self.fold_tts(&delimed.tts),
-                        close_span: delimed.close_span,
-                    })
-                )
-            }
-            TokenTree::Sequence(span, ref seq) => {
-                TokenTree::Sequence(
-                    self.new_span(span),
-                    Rc::new(ast::SequenceRepetition {
-                        tts: self.fold_tts(&seq.tts),
-                        separator: seq.separator.clone().map(|tok| self.fold_token(tok)),
-                        ..**seq
-                    })
-                )
-            }
-        }
-    }
-
-    fn new_span(&mut self, span: Span) -> Span {
-        Span {
-            lo: span.lo,
-            hi: span.hi,
-            expn_id: self.cx.backtrace(),
-        }
-    }
-}
-
-fn get_str_from_lit(cx: &ExtCtxt, name: &str, lit: &ast::Lit) -> Result<InternedString, Error> {
-    match lit.node {
-        ast::LitKind::Str(ref s, _) => Ok(s.clone()),
-        _ => {
-            cx.span_err(
-                lit.span,
-                &format!("serde annotation `{}` must be a string, not `{}`",
-                         name,
-                         lit_to_string(lit)));
-
-            return Err(Error);
-        }
-    }
-}
-
-fn parse_lit_into_path(cx: &ExtCtxt, name: &str, lit: &ast::Lit) -> Result<ast::Path, Error> {
-    let source = try!(get_str_from_lit(cx, name, lit));
-
-    // If we just parse the string into an expression, any syntax errors in the source will only
-    // have spans that point inside the string, and not back to the attribute. So to have better
-    // error reporting, we'll first parse the string into a token tree. Then we'll update those
-    // spans to say they're coming from a macro context that originally came from the attribute,
-    // and then finally parse them into an expression.
-    let tts = panictry!(parse::parse_tts_from_source_str(
-        format!("<serde {} expansion>", name),
-        (*source).to_owned(),
-        cx.cfg(),
-        cx.parse_sess()));
-
-    // Respan the spans to say they are all coming from this macro.
-    let tts = Respanner { cx: cx }.fold_tts(&tts);
-
-    let mut parser = parse::new_parser_from_tts(cx.parse_sess(), cx.cfg(), tts);
-
-    let path = match parser.parse_path(PathStyle::Type) {
-        Ok(path) => path,
-        Err(mut e) => {
-            e.emit();
-            return Err(Error);
-        }
-    };
-
-    // Make sure to error out if there are trailing characters in the stream.
-    match parser.expect(&token::Eof) {
-        Ok(()) => { }
-        Err(mut e) => {
-            e.emit();
-            return Err(Error);
-        }
-    }
-
-    Ok(path)
-}
-
-/// This function wraps the expression in `#[serde(default="...")]` in a function to prevent it
-/// from accessing the internal `Deserialize` state.
-fn wrap_default(path: ast::Path) -> P<ast::Expr> {
-    AstBuilder::new().expr().call()
-        .build_path(path)
-        .build()
-}

serde_codegen/src/bound.rs

@@ -1,147 +0,0 @@
-use std::collections::HashSet;
-
-use aster::AstBuilder;
-
-use syntax::ast;
-use syntax::ext::base::ExtCtxt;
-use syntax::ptr::P;
-use syntax::visit;
-
-// Remove the default from every type parameter because in the generated impls
-// they look like associated types: "error: associated type bindings are not
-// allowed here".
-pub fn without_defaults(generics: &ast::Generics) -> ast::Generics {
-    ast::Generics {
-        ty_params: generics.ty_params.iter().map(|ty_param| {
-            ast::TyParam {
-                default: None,
-                .. ty_param.clone()
-            }}).collect(),
-        .. generics.clone()
-    }
-}
-
-pub fn with_bound(
-    cx: &ExtCtxt,
-    builder: &AstBuilder,
-    item: &ast::Item,
-    generics: &ast::Generics,
-    filter: &Fn(&ast::StructField) -> bool,
-    bound: &ast::Path,
-) -> ast::Generics {
-    builder.from_generics(generics.clone())
-        .with_predicates(
-            all_variants(cx, item).iter()
-                .flat_map(|variant_data| all_struct_fields(variant_data))
-                .filter(|field| filter(field))
-                .map(|field| &field.ty)
-                // TODO this filter can be removed later, see comment on function
-                .filter(|ty| contains_generic(ty, generics))
-                .map(|ty| strip_reference(ty))
-                .map(|ty| builder.where_predicate()
-                    // the type that is being bounded e.g. T
-                    .bound().build(ty.clone())
-                    // the bound e.g. Serialize
-                    .bound().trait_(bound.clone()).build()
-                    .build()))
-        .build()
-}
-
-fn all_variants<'a>(cx: &ExtCtxt, item: &'a ast::Item) -> Vec<&'a ast::VariantData> {
-    match item.node {
-        ast::ItemKind::Struct(ref variant_data, _) => {
-            vec![variant_data]
-        }
-        ast::ItemKind::Enum(ref enum_def, _) => {
-            enum_def.variants.iter()
-                .map(|variant| &variant.node.data)
-                .collect()
-        }
-        _ => {
-            cx.span_bug(item.span, "expected Item to be Struct or Enum");
-        }
-    }
-}
-
-fn all_struct_fields(variant_data: &ast::VariantData) -> &[ast::StructField] {
-    match *variant_data {
-        ast::VariantData::Struct(ref fields, _) |
-        ast::VariantData::Tuple(ref fields, _) => {
-            fields
-        }
-        ast::VariantData::Unit(_) => {
-            &[]
-        }
-    }
-}
-
-// Rust <1.7 enforces that `where` clauses involve generic type parameters. The
-// corresponding compiler error is E0193. It is no longer enforced in Rust >=1.7
-// so this filtering can be removed in the future when we stop supporting <1.7.
-//
-// E0193 means we must not generate a `where` clause like `i32: Serialize`
-// because even though i32 implements Serialize, i32 is not a generic type
-// parameter. Clauses like `T: Serialize` and `Option<T>: Serialize` are okay.
-// This function decides whether a given type references any of the generic type
-// parameters in the input `Generics`.
-fn contains_generic(ty: &ast::Ty, generics: &ast::Generics) -> bool {
-    struct FindGeneric<'a> {
-        generic_names: &'a HashSet<ast::Name>,
-        found_generic: bool,
-    }
-    impl<'a, 'v> visit::Visitor<'v> for FindGeneric<'a> {
-        fn visit_path(&mut self, path: &'v ast::Path, _id: ast::NodeId) {
-            if !path.global
-                    && path.segments.len() == 1
-                    && self.generic_names.contains(&path.segments[0].identifier.name) {
-                self.found_generic = true;
-            } else {
-                visit::walk_path(self, path);
-            }
-        }
-    }
-
-    let generic_names: HashSet<_> = generics.ty_params.iter()
-        .map(|ty_param| ty_param.ident.name)
-        .collect();
-
-    let mut visitor = FindGeneric {
-        generic_names: &generic_names,
-        found_generic: false,
-    };
-    visit::walk_ty(&mut visitor, ty);
-    visitor.found_generic
-}
-
-// This is required to handle types that use both a reference and a value of
-// the same type, as in:
-//
-//    enum Test<'a, T> where T: 'a {
-//        Lifetime(&'a T),
-//        NoLifetime(T),
-//    }
-//
-// Preserving references, we would generate an impl like:
-//
-//    impl<'a, T> Serialize for Test<'a, T>
-//        where &'a T: Serialize,
-//              T: Serialize { ... }
-//
-// And taking a reference to one of the elements would fail with:
-//
-//    error: cannot infer an appropriate lifetime for pattern due
-//    to conflicting requirements [E0495]
-//        Test::NoLifetime(ref v) => { ... }
-//                         ^~~~~
-//
-// Instead, we strip references before adding `T: Serialize` bounds in order to
-// generate:
-//
-//    impl<'a, T> Serialize for Test<'a, T>
-//        where T: Serialize { ... }
-fn strip_reference(mut ty: &P<ast::Ty>) -> &P<ast::Ty> {
-    while let ast::TyKind::Rptr(_, ref mut_ty) = ty.node {
-        ty = &mut_ty.ty;
-    }
-    ty
-}

serde_codegen/src/error.rs

@@ -1,2 +0,0 @@
-/// Error returned if failed to parse attribute.
-pub struct Error;

serde_codegen/src/lib.rs

@@ -1,84 +0,0 @@
-#![cfg_attr(feature = "nightly-testing", plugin(clippy))]
-#![cfg_attr(feature = "nightly-testing", feature(plugin))]
-#![cfg_attr(feature = "nightly-testing", allow(too_many_arguments))]
-#![cfg_attr(feature = "nightly-testing", allow(used_underscore_binding))]
-#![cfg_attr(not(feature = "with-syntex"), feature(rustc_private, plugin))]
-#![cfg_attr(not(feature = "with-syntex"), plugin(quasi_macros))]
-
-extern crate aster;
-extern crate quasi;
-
-#[cfg(feature = "with-syntex")]
-extern crate syntex;
-
-#[cfg(feature = "with-syntex")]
-#[macro_use]
-extern crate syntex_syntax as syntax;
-
-#[cfg(not(feature = "with-syntex"))]
-#[macro_use]
-extern crate syntax;
-
-#[cfg(not(feature = "with-syntex"))]
-extern crate rustc_plugin;
-
-#[cfg(not(feature = "with-syntex"))]
-use syntax::feature_gate::AttributeType;
-
-#[cfg(feature = "with-syntex")]
-include!(concat!(env!("OUT_DIR"), "/lib.rs"));
-
-#[cfg(not(feature = "with-syntex"))]
-include!("lib.rs.in");
-
-#[cfg(feature = "with-syntex")]
-pub fn register(reg: &mut syntex::Registry) {
-    use syntax::{ast, fold};
-
-    /// Strip the serde attributes from the crate.
-    #[cfg(feature = "with-syntex")]
-    fn strip_attributes(krate: ast::Crate) -> ast::Crate {
-        /// Helper folder that strips the serde attributes after the extensions have been expanded.
-        struct StripAttributeFolder;
-
-        impl fold::Folder for StripAttributeFolder {
-            fn fold_attribute(&mut self, attr: ast::Attribute) -> Option<ast::Attribute> {
-                match attr.node.value.node {
-                    ast::MetaItemKind::List(ref n, _) if n == &"serde" => { return None; }
-                    _ => {}
-                }
-
-                Some(attr)
-            }
-
-            fn fold_mac(&mut self, mac: ast::Mac) -> ast::Mac {
-                fold::noop_fold_mac(mac, self)
-            }
-        }
-
-        fold::Folder::fold_crate(&mut StripAttributeFolder, krate)
-    }
-
-    reg.add_attr("feature(custom_derive)");
-    reg.add_attr("feature(custom_attribute)");
-
-    reg.add_decorator("derive_Serialize", ser::expand_derive_serialize);
-    reg.add_decorator("derive_Deserialize", de::expand_derive_deserialize);
-
-    reg.add_post_expansion_pass(strip_attributes);
-}
-
-#[cfg(not(feature = "with-syntex"))]
-pub fn register(reg: &mut rustc_plugin::Registry) {
-    reg.register_syntax_extension(
-        syntax::parse::token::intern("derive_Serialize"),
-        syntax::ext::base::MultiDecorator(
-            Box::new(ser::expand_derive_serialize)));
-
-    reg.register_syntax_extension(
-        syntax::parse::token::intern("derive_Deserialize"),
-        syntax::ext::base::MultiDecorator(
-            Box::new(de::expand_derive_deserialize)));
-
-    reg.register_attribute("serde".to_owned(), AttributeType::Normal);
-}

serde_codegen/src/lib.rs.in

@@ -1,5 +0,0 @@
-mod attr;
-mod bound;
-mod de;
-mod error;
-mod ser;

serde_codegen/src/ser.rs

@@ -1,882 +0,0 @@
-use aster;
-
-use syntax::ast::{
-    Ident,
-    MetaItem,
-    Item,
-};
-use syntax::ast;
-use syntax::codemap::Span;
-use syntax::ext::base::{Annotatable, ExtCtxt};
-use syntax::ptr::P;
-
-use attr;
-use bound;
-use error::Error;
-
-pub fn expand_derive_serialize(
-    cx: &mut ExtCtxt,
-    span: Span,
-    meta_item: &MetaItem,
-    annotatable: &Annotatable,
-    push: &mut FnMut(Annotatable)
-) {
-    let item = match *annotatable {
-        Annotatable::Item(ref item) => item,
-        _ => {
-            cx.span_err(
-                meta_item.span,
-                "`#[derive(Serialize)]` may only be applied to structs and enums");
-            return;
-        }
-    };
-
-    let builder = aster::AstBuilder::new().span(span);
-
-    let impl_item = match serialize_item(cx, &builder, &item) {
-        Ok(item) => item,
-        Err(Error) => {
-            // An error occured, but it should have been reported already.
-            return;
-        }
-    };
-
-    push(Annotatable::Item(impl_item))
-}
-
-fn serialize_item(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    item: &Item,
-) -> Result<P<ast::Item>, Error> {
-    let generics = match item.node {
-        ast::ItemKind::Struct(_, ref generics) => generics,
-        ast::ItemKind::Enum(_, ref generics) => generics,
-        _ => {
-            cx.span_err(
-                item.span,
-                "`#[derive(Serialize)]` may only be applied to structs and enums");
-            return Err(Error);
-        }
-    };
-
-    let impl_generics = build_impl_generics(cx, builder, item, generics);
-
-    let ty = builder.ty().path()
-        .segment(item.ident).with_generics(impl_generics.clone()).build()
-        .build();
-
-    let body = try!(serialize_body(cx,
-                                   &builder,
-                                   &item,
-                                   &impl_generics,
-                                   ty.clone()));
-
-    let where_clause = &impl_generics.where_clause;
-
-    let dummy_const = builder.id(format!("_IMPL_SERIALIZE_FOR_{}", item.ident));
-
-    Ok(quote_item!(cx,
-        #[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-        const $dummy_const: () = {
-            extern crate serde as _serde;
-            #[automatically_derived]
-            impl $impl_generics _serde::ser::Serialize for $ty $where_clause {
-                fn serialize<__S>(&self, _serializer: &mut __S) -> ::std::result::Result<(), __S::Error>
-                    where __S: _serde::ser::Serializer,
-                {
-                    $body
-                }
-            }
-        };
-    ).unwrap())
-}
-
-// All the generics in the input, plus a bound `T: Serialize` for each generic
-// field type that will be serialized by us.
-fn build_impl_generics(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    item: &Item,
-    generics: &ast::Generics,
-) -> ast::Generics {
-    let generics = bound::without_defaults(generics);
-    let generics = bound::with_bound(cx, builder, item, &generics,
-        &serialized_by_us,
-        &builder.path().ids(&["_serde", "ser", "Serialize"]).build());
-    generics
-}
-
-// Fields with a `skip_serializing` or `serialize_with` attribute are not
-// serialized by us. All other fields may need a `T: Serialize` bound where T is
-// the type of the field.
-fn serialized_by_us(field: &ast::StructField) -> bool {
-    for meta_items in field.attrs.iter().filter_map(attr::get_serde_meta_items) {
-        for meta_item in meta_items {
-            match meta_item.node {
-                ast::MetaItemKind::Word(ref name) if name == &"skip_serializing" => {
-                    return false
-                }
-                ast::MetaItemKind::NameValue(ref name, _) if name == &"serialize_with" => {
-                    return false
-                }
-                _ => {}
-            }
-        }
-    }
-    true
-}
-
-fn serialize_body(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    item: &Item,
-    impl_generics: &ast::Generics,
-    ty: P<ast::Ty>,
-) -> Result<P<ast::Expr>, Error> {
-    let container_attrs = try!(attr::ContainerAttrs::from_item(cx, item));
-
-    match item.node {
-        ast::ItemKind::Struct(ref variant_data, _) => {
-            serialize_item_struct(
-                cx,
-                builder,
-                impl_generics,
-                ty,
-                item.span,
-                variant_data,
-                &container_attrs,
-            )
-        }
-        ast::ItemKind::Enum(ref enum_def, _) => {
-            serialize_item_enum(
-                cx,
-                builder,
-                item.ident,
-                impl_generics,
-                ty,
-                enum_def,
-                &container_attrs,
-            )
-        }
-        _ => {
-            cx.span_bug(item.span,
-                        "expected ItemStruct or ItemEnum in #[derive(Serialize)]");
-        }
-    }
-}
-
-fn serialize_item_struct(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    impl_generics: &ast::Generics,
-    ty: P<ast::Ty>,
-    span: Span,
-    variant_data: &ast::VariantData,
-    container_attrs: &attr::ContainerAttrs,
-) -> Result<P<ast::Expr>, Error> {
-    match *variant_data {
-        ast::VariantData::Unit(_) => {
-            serialize_unit_struct(
-                cx,
-                container_attrs,
-            )
-        }
-        ast::VariantData::Tuple(ref fields, _) if fields.len() == 1 => {
-            serialize_newtype_struct(
-                cx,
-                &builder,
-                impl_generics,
-                ty,
-                &fields[0],
-                container_attrs,
-            )
-        }
-        ast::VariantData::Tuple(ref fields, _) => {
-            if fields.iter().any(|field| field.ident.is_some()) {
-                cx.span_bug(span, "tuple struct has named fields")
-            }
-
-            serialize_tuple_struct(
-                cx,
-                &builder,
-                impl_generics,
-                ty,
-                fields,
-                container_attrs,
-            )
-        }
-        ast::VariantData::Struct(ref fields, _) => {
-            if fields.iter().any(|field| field.ident.is_none()) {
-                cx.span_bug(span, "struct has unnamed fields")
-            }
-
-            serialize_struct(
-                cx,
-                &builder,
-                impl_generics,
-                ty,
-                fields,
-                container_attrs,
-            )
-        }
-    }
-}
-
-fn serialize_unit_struct(
-    cx: &ExtCtxt,
-    container_attrs: &attr::ContainerAttrs,
-) -> Result<P<ast::Expr>, Error> {
-    let type_name = container_attrs.name().serialize_name_expr();
-
-    Ok(quote_expr!(cx,
-        _serializer.serialize_unit_struct($type_name)
-    ))
-}
-
-fn serialize_newtype_struct(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    impl_generics: &ast::Generics,
-    container_ty: P<ast::Ty>,
-    field: &ast::StructField,
-    container_attrs: &attr::ContainerAttrs,
-) -> Result<P<ast::Expr>, Error> {
-    let type_name = container_attrs.name().serialize_name_expr();
-
-    let attrs = try!(attr::FieldAttrs::from_field(cx, 0, field));
-
-    let mut field_expr = quote_expr!(cx, &self.0);
-    if let Some(path) = attrs.serialize_with() {
-        field_expr = wrap_serialize_with(cx, builder,
-            &container_ty, impl_generics, &field.ty, path, field_expr);
-    }
-
-    Ok(quote_expr!(cx,
-        _serializer.serialize_newtype_struct($type_name, $field_expr)
-    ))
-}
-
-fn serialize_tuple_struct(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    impl_generics: &ast::Generics,
-    ty: P<ast::Ty>,
-    fields: &[ast::StructField],
-    container_attrs: &attr::ContainerAttrs,
-) -> Result<P<ast::Expr>, Error> {
-    let (visitor_struct, visitor_impl) = try!(serialize_tuple_struct_visitor(
-        cx,
-        builder,
-        ty.clone(),
-        builder.ty()
-            .ref_()
-            .lifetime("'__a")
-            .build_ty(ty.clone()),
-        builder.id("serialize_tuple_struct_elt"),
-        fields,
-        impl_generics,
-        false,
-    ));
-
-    let type_name = container_attrs.name().serialize_name_expr();
-
-    Ok(quote_expr!(cx, {
-        $visitor_struct
-        $visitor_impl
-        _serializer.serialize_tuple_struct($type_name, Visitor {
-            value: self,
-            state: 0,
-            _structure_ty: ::std::marker::PhantomData::<&$ty>,
-        })
-    }))
-}
-
-fn serialize_struct(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    impl_generics: &ast::Generics,
-    ty: P<ast::Ty>,
-    fields: &[ast::StructField],
-    container_attrs: &attr::ContainerAttrs,
-) -> Result<P<ast::Expr>, Error> {
-    let (visitor_struct, visitor_impl) = try!(serialize_struct_visitor(
-        cx,
-        builder,
-        ty.clone(),
-        builder.ty()
-            .ref_()
-            .lifetime("'__a")
-            .build_ty(ty.clone()),
-        builder.id("serialize_struct_elt"),
-        fields,
-        impl_generics,
-        false,
-    ));
-
-    let type_name = container_attrs.name().serialize_name_expr();
-
-    Ok(quote_expr!(cx, {
-        $visitor_struct
-        $visitor_impl
-        _serializer.serialize_struct($type_name, Visitor {
-            value: self,
-            state: 0,
-            _structure_ty: ::std::marker::PhantomData::<&$ty>,
-        })
-    }))
-}
-
-fn serialize_item_enum(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    type_ident: Ident,
-    impl_generics: &ast::Generics,
-    ty: P<ast::Ty>,
-    enum_def: &ast::EnumDef,
-    container_attrs: &attr::ContainerAttrs,
-) -> Result<P<ast::Expr>, Error> {
-    let arms: Vec<_> = try!(
-        enum_def.variants.iter()
-            .enumerate()
-            .map(|(variant_index, variant)| {
-                serialize_variant(
-                    cx,
-                    builder,
-                    type_ident,
-                    impl_generics,
-                    ty.clone(),
-                    variant,
-                    variant_index,
-                    container_attrs,
-                )
-            })
-            .collect()
-    );
-
-    Ok(quote_expr!(cx,
-        match *self {
-            $arms
-        }
-    ))
-}
-
-fn serialize_variant(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    type_ident: Ident,
-    generics: &ast::Generics,
-    ty: P<ast::Ty>,
-    variant: &ast::Variant,
-    variant_index: usize,
-    container_attrs: &attr::ContainerAttrs,
-) -> Result<ast::Arm, Error> {
-    let type_name = container_attrs.name().serialize_name_expr();
-
-    let variant_ident = variant.node.name;
-    let variant_attrs = try!(attr::VariantAttrs::from_variant(cx, variant));
-    let variant_name = variant_attrs.name().serialize_name_expr();
-
-    match variant.node.data {
-        ast::VariantData::Unit(_) => {
-            Ok(quote_arm!(cx,
-                $type_ident::$variant_ident => {
-                    _serde::ser::Serializer::serialize_unit_variant(
-                        _serializer,
-                        $type_name,
-                        $variant_index,
-                        $variant_name,
-                    )
-                }
-            ))
-        },
-        ast::VariantData::Tuple(ref fields, _) if fields.len() == 1 => {
-            let expr = try!(serialize_newtype_variant(
-                cx,
-                builder,
-                type_name,
-                variant_index,
-                variant_name,
-                ty,
-                generics,
-                &fields[0],
-            ));
-
-            Ok(quote_arm!(cx,
-                $type_ident::$variant_ident(ref __simple_value) => { $expr }
-            ))
-        },
-        ast::VariantData::Tuple(ref fields, _) => {
-            let field_names: Vec<ast::Ident> = (0 .. fields.len())
-                .map(|i| builder.id(format!("__field{}", i)))
-                .collect();
-
-            let pat = builder.pat().enum_()
-                .id(type_ident).id(variant_ident).build()
-                .with_pats(
-                    field_names.iter()
-                        .map(|field| builder.pat().ref_id(field))
-                )
-                .build();
-
-            let expr = try!(serialize_tuple_variant(
-                cx,
-                builder,
-                type_name,
-                variant_index,
-                variant_name,
-                generics,
-                ty,
-                fields,
-                field_names,
-            ));
-
-            Ok(quote_arm!(cx,
-                $pat => { $expr }
-            ))
-        }
-        ast::VariantData::Struct(ref fields, _) => {
-            let field_names: Vec<_> = (0 .. fields.len())
-                .map(|i| builder.id(format!("__field{}", i)))
-                .collect();
-
-            let pat = builder.pat().struct_()
-                .id(type_ident).id(variant_ident).build()
-                .with_pats(
-                    field_names.iter()
-                        .zip(fields.iter())
-                        .map(|(id, field)| {
-                            let name = match field.ident {
-                                Some(name) => name,
-                                None => {
-                                    cx.span_bug(field.span, "struct variant has unnamed fields")
-                                }
-                            };
-
-                            (name, builder.pat().ref_id(id))
-                        })
-                )
-                .build();
-
-            let expr = try!(serialize_struct_variant(
-                cx,
-                builder,
-                variant_index,
-                variant_name,
-                generics,
-                ty,
-                fields,
-                field_names,
-                container_attrs,
-            ));
-
-            Ok(quote_arm!(cx,
-                $pat => { $expr }
-            ))
-        }
-    }
-}
-
-fn serialize_newtype_variant(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    type_name: P<ast::Expr>,
-    variant_index: usize,
-    variant_name: P<ast::Expr>,
-    container_ty: P<ast::Ty>,
-    generics: &ast::Generics,
-    field: &ast::StructField,
-) -> Result<P<ast::Expr>, Error> {
-    let attrs = try!(attr::FieldAttrs::from_field(cx, 0, field));
-
-    let mut field_expr = quote_expr!(cx, __simple_value);
-    if let Some(path) = attrs.serialize_with() {
-        field_expr = wrap_serialize_with(cx, builder,
-            &container_ty, generics, &field.ty, path, field_expr);
-    }
-
-    Ok(quote_expr!(cx,
-        _serde::ser::Serializer::serialize_newtype_variant(
-            _serializer,
-            $type_name,
-            $variant_index,
-            $variant_name,
-            $field_expr,
-        )
-    ))
-}
-
-fn serialize_tuple_variant(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    type_name: P<ast::Expr>,
-    variant_index: usize,
-    variant_name: P<ast::Expr>,
-    generics: &ast::Generics,
-    structure_ty: P<ast::Ty>,
-    fields: &[ast::StructField],
-    field_names: Vec<Ident>,
-) -> Result<P<ast::Expr>, Error> {
-    let variant_ty = builder.ty().tuple()
-        .with_tys(
-            fields.iter().map(|field| {
-                builder.ty()
-                    .ref_()
-                    .lifetime("'__a")
-                    .build_ty(field.ty.clone())
-            })
-        )
-        .build();
-
-    let (visitor_struct, visitor_impl) = try!(serialize_tuple_struct_visitor(
-        cx,
-        builder,
-        structure_ty.clone(),
-        variant_ty,
-        builder.id("serialize_tuple_variant_elt"),
-        fields,
-        generics,
-        true,
-    ));
-
-    let value_expr = builder.expr().tuple()
-        .with_exprs(
-            field_names.iter().map(|field| {
-                builder.expr().id(field)
-            })
-        )
-        .build();
-
-    Ok(quote_expr!(cx, {
-        $visitor_struct
-        $visitor_impl
-        _serializer.serialize_tuple_variant($type_name, $variant_index, $variant_name, Visitor {
-            value: $value_expr,
-            state: 0,
-            _structure_ty: ::std::marker::PhantomData::<&$structure_ty>,
-        })
-    }))
-}
-
-fn serialize_struct_variant(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    variant_index: usize,
-    variant_name: P<ast::Expr>,
-    generics: &ast::Generics,
-    ty: P<ast::Ty>,
-    fields: &[ast::StructField],
-    field_names: Vec<Ident>,
-    container_attrs: &attr::ContainerAttrs,
-) -> Result<P<ast::Expr>, Error> {
-    let variant_generics = builder.generics()
-        .with(generics.clone())
-        .add_lifetime_bound("'__serde_variant")
-        .lifetime_name("'__serde_variant")
-        .build();
-
-    let variant_struct = builder.item().struct_("__VariantStruct")
-        .with_generics(variant_generics.clone())
-        .with_fields(
-            fields.iter().map(|field| {
-                builder.struct_field(field.ident.expect("struct has unnamed fields"))
-                    .with_attrs(field.attrs.iter().cloned())
-                    .ty()
-                    .ref_()
-                    .lifetime("'__serde_variant")
-                    .build_ty(field.ty.clone())
-            })
-        )
-        .field("__serde_container_ty")
-            .ty().phantom_data().build(ty.clone())
-        .build();
-
-    let variant_expr = builder.expr().struct_id("__VariantStruct")
-        .with_id_exprs(
-            fields.iter()
-                .zip(field_names.iter())
-                .map(|(field, field_name)| {
-                    (
-                        field.ident.expect("struct has unnamed fields"),
-                        builder.expr().id(field_name),
-                    )
-                })
-        )
-        .field("__serde_container_ty").path()
-            .global()
-            .id("std").id("marker")
-            .segment("PhantomData")
-                .with_ty(ty.clone())
-                .build()
-            .build()
-        .build();
-
-    let variant_ty = builder.ty().path()
-        .segment("__VariantStruct")
-            .with_generics(variant_generics.clone())
-            .build()
-        .build();
-
-    let (visitor_struct, visitor_impl) = try!(serialize_struct_visitor(
-        cx,
-        builder,
-        variant_ty.clone(),
-        variant_ty.clone(),
-        builder.id("serialize_struct_variant_elt"),
-        fields,
-        &variant_generics,
-        true,
-    ));
-
-    let container_name = container_attrs.name().serialize_name_expr();
-
-    Ok(quote_expr!(cx, {
-        $variant_struct
-        $visitor_struct
-        $visitor_impl
-        _serializer.serialize_struct_variant(
-            $container_name,
-            $variant_index,
-            $variant_name,
-            Visitor {
-                value: $variant_expr,
-                state: 0,
-                _structure_ty: ::std::marker::PhantomData,
-            },
-        )
-    }))
-}
-
-fn serialize_tuple_struct_visitor(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    structure_ty: P<ast::Ty>,
-    variant_ty: P<ast::Ty>,
-    serializer_method: ast::Ident,
-    fields: &[ast::StructField],
-    generics: &ast::Generics,
-    is_enum: bool,
-) -> Result<(P<ast::Item>, P<ast::Item>), Error> {
-    let fields_with_attrs = try!(attr::fields_with_attrs(cx, fields));
-
-    let arms: Vec<_> = fields_with_attrs.iter()
-        .enumerate()
-        .map(|(i, &(field, ref attrs))| {
-            let mut field_expr = builder.expr().tup_field(i).field("value").self_();
-            if !is_enum {
-                field_expr = quote_expr!(cx, &$field_expr);
-            }
-
-            let continue_if_skip = attrs.skip_serializing_if()
-                .map(|path| quote_stmt!(cx, if $path($field_expr) { continue }));
-
-            if let Some(path) = attrs.serialize_with() {
-                field_expr = wrap_serialize_with(cx, builder,
-                    &structure_ty, generics, &field.ty, path, field_expr);
-            }
-
-            quote_arm!(cx,
-                $i => {
-                    self.state += 1;
-                    $continue_if_skip
-                    Ok(Some(try!(_serializer.$serializer_method($field_expr))))
-                }
-            )
-        })
-        .collect();
-
-    let visitor_impl_generics = builder.from_generics(generics.clone())
-        .add_lifetime_bound("'__a")
-        .lifetime_name("'__a")
-        .build();
-
-    let where_clause = &visitor_impl_generics.where_clause;
-
-    let visitor_generics = builder.from_generics(visitor_impl_generics.clone())
-        .strip_bounds()
-        .build();
-
-    let nfields = fields.len();
-
-    Ok((
-        quote_item!(cx,
-            struct Visitor $visitor_impl_generics $where_clause {
-                state: usize,
-                value: $variant_ty,
-                _structure_ty: ::std::marker::PhantomData<&'__a $structure_ty>,
-            }
-        ).unwrap(),
-
-        quote_item!(cx,
-            impl $visitor_impl_generics _serde::ser::SeqVisitor
-            for Visitor $visitor_generics
-            $where_clause {
-                #[inline]
-                fn visit<__S>(&mut self, _serializer: &mut __S) -> ::std::result::Result<Option<()>, __S::Error>
-                    where __S: _serde::ser::Serializer
-                {
-                    match self.state {
-                        $arms
-                        _ => Ok(None)
-                    }
-                }
-
-                #[inline]
-                fn len(&self) -> Option<usize> {
-                    Some($nfields)
-                }
-            }
-        ).unwrap(),
-    ))
-}
-
-fn serialize_struct_visitor(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    structure_ty: P<ast::Ty>,
-    variant_ty: P<ast::Ty>,
-    serializer_method: ast::Ident,
-    fields: &[ast::StructField],
-    generics: &ast::Generics,
-    is_enum: bool,
-) -> Result<(P<ast::Item>, P<ast::Item>), Error> {
-    let fields_with_attrs = try!(attr::fields_with_attrs(cx, fields));
-
-    let arms: Vec<ast::Arm> = fields_with_attrs.iter()
-        .filter(|&&(_, ref attrs)| !attrs.skip_serializing_field())
-        .enumerate()
-        .map(|(i, &(field, ref attrs))| {
-            let ident = field.ident.expect("struct has unnamed field");
-            let mut field_expr = quote_expr!(cx, self.value.$ident);
-            if !is_enum {
-                field_expr = quote_expr!(cx, &$field_expr);
-            }
-
-            let key_expr = attrs.name().serialize_name_expr();
-
-            let continue_if_skip = attrs.skip_serializing_if()
-                .map(|path| quote_stmt!(cx, if $path($field_expr) { continue }));
-
-            if let Some(path) = attrs.serialize_with() {
-                field_expr = wrap_serialize_with(cx, builder,
-                    &structure_ty, generics, &field.ty, path, field_expr)
-            }
-
-            let expr = quote_expr!(cx,
-                _serializer.$serializer_method($key_expr, $field_expr)
-            );
-
-            quote_arm!(cx,
-                $i => {
-                    self.state += 1;
-                    $continue_if_skip
-                    return Ok(Some(try!($expr)));
-                }
-            )
-        })
-        .collect();
-
-    let visitor_impl_generics = builder.from_generics(generics.clone())
-        .add_lifetime_bound("'__a")
-        .lifetime_name("'__a")
-        .build();
-
-    let where_clause = &visitor_impl_generics.where_clause;
-
-    let visitor_generics = builder.from_generics(visitor_impl_generics.clone())
-        .strip_bounds()
-        .build();
-
-    let len = fields_with_attrs.iter()
-        .filter(|&&(_, ref attrs)| !attrs.skip_serializing_field())
-        .map(|&(field, ref attrs)| {
-            let ident = field.ident.expect("struct has unnamed fields");
-            let mut field_expr = quote_expr!(cx, self.value.$ident);
-            if !is_enum {
-                field_expr = quote_expr!(cx, &$field_expr);
-            }
-
-            match attrs.skip_serializing_if() {
-                Some(path) => quote_expr!(cx, if $path($field_expr) { 0 } else { 1 }),
-                None => quote_expr!(cx, 1),
-            }
-        })
-        .fold(quote_expr!(cx, 0), |sum, expr| quote_expr!(cx, $sum + $expr));
-
-    Ok((
-        quote_item!(cx,
-            struct Visitor $visitor_impl_generics $where_clause {
-                state: usize,
-                value: $variant_ty,
-                _structure_ty: ::std::marker::PhantomData<&'__a $structure_ty>,
-            }
-        ).unwrap(),
-
-        quote_item!(cx,
-            impl $visitor_impl_generics
-            _serde::ser::MapVisitor
-            for Visitor $visitor_generics
-            $where_clause {
-                #[inline]
-                fn visit<__S>(&mut self, _serializer: &mut __S) -> ::std::result::Result<Option<()>, __S::Error>
-                    where __S: _serde::ser::Serializer,
-                {
-                    loop {
-                        match self.state {
-                            $arms
-                            _ => { return Ok(None); }
-                        }
-                    }
-                }
-
-                #[inline]
-                fn len(&self) -> Option<usize> {
-                    Some($len)
-                }
-            }
-        ).unwrap(),
-    ))
-}
-
-fn wrap_serialize_with(
-    cx: &ExtCtxt,
-    builder: &aster::AstBuilder,
-    container_ty: &P<ast::Ty>,
-    generics: &ast::Generics,
-    field_ty: &P<ast::Ty>,
-    path: &ast::Path,
-    value: P<ast::Expr>,
-) -> P<ast::Expr> {
-    let where_clause = &generics.where_clause;
-
-    let wrapper_generics = builder.from_generics(generics.clone())
-        .add_lifetime_bound("'__a")
-        .lifetime_name("'__a")
-        .build();
-
-    let wrapper_ty = builder.path()
-        .segment("__SerializeWith")
-            .with_generics(wrapper_generics.clone())
-            .build()
-        .build();
-
-    quote_expr!(cx, {
-        struct __SerializeWith $wrapper_generics $where_clause {
-            value: &'__a $field_ty,
-            phantom: ::std::marker::PhantomData<$container_ty>,
-        }
-
-        impl $wrapper_generics _serde::ser::Serialize for $wrapper_ty $where_clause {
-            fn serialize<__S>(&self, __s: &mut __S) -> Result<(), __S::Error>
-                where __S: _serde::ser::Serializer
-            {
-                $path(self.value, __s)
-            }
-        }
-
-        __SerializeWith {
-            value: $value,
-            phantom: ::std::marker::PhantomData::<$container_ty>,
-        }
-    })
-}

serde_codegen_internals/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "serde_codegen_internals"
+version = "0.14.1"
+authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
+license = "MIT/Apache-2.0"
+description = "AST representation used by Serde codegen. Unstable."
+homepage = "https://serde.rs"
+repository = "https://github.com/serde-rs/serde"
+documentation = "https://docs.serde.rs/serde_codegen_internals/"
+keywords = ["serde", "serialization"]
+readme = "../README.md"
+include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
+
+[dependencies]
+syn = { version = "0.11", default-features = false, features = ["parsing"] }
+
+[badges]
+travis-ci = { repository = "serde-rs/serde" }

serde_codegen_internals/LICENSE-APACHE

@@ -0,0 +1 @@
+../LICENSE-APACHE

serde_codegen_internals/LICENSE-MIT

@@ -0,0 +1 @@
+../LICENSE-MIT

serde_codegen_internals/README.md

@@ -0,0 +1 @@
+../README.md

serde_codegen_internals/src/ast.rs

@@ -0,0 +1,122 @@
+use syn;
+use attr;
+use Ctxt;
+
+pub struct Item<'a> {
+    pub ident: syn::Ident,
+    pub attrs: attr::Item,
+    pub body: Body<'a>,
+    pub generics: &'a syn::Generics,
+}
+
+pub enum Body<'a> {
+    Enum(Vec<Variant<'a>>),
+    Struct(Style, Vec<Field<'a>>),
+}
+
+pub struct Variant<'a> {
+    pub ident: syn::Ident,
+    pub attrs: attr::Variant,
+    pub style: Style,
+    pub fields: Vec<Field<'a>>,
+}
+
+pub struct Field<'a> {
+    pub ident: Option<syn::Ident>,
+    pub attrs: attr::Field,
+    pub ty: &'a syn::Ty,
+}
+
+pub enum Style {
+    Struct,
+    Tuple,
+    Newtype,
+    Unit,
+}
+
+impl<'a> Item<'a> {
+    pub fn from_ast(cx: &Ctxt, item: &'a syn::MacroInput) -> Item<'a> {
+        let attrs = attr::Item::from_ast(cx, item);
+
+        let mut body = match item.body {
+            syn::Body::Enum(ref variants) => Body::Enum(enum_from_ast(cx, variants)),
+            syn::Body::Struct(ref variant_data) => {
+                let (style, fields) = struct_from_ast(cx, variant_data);
+                Body::Struct(style, fields)
+            }
+        };
+
+        match body {
+            Body::Enum(ref mut variants) => {
+                for ref mut variant in variants {
+                    variant.attrs.rename_by_rule(attrs.rename_all());
+                    for ref mut field in &mut variant.fields {
+                        field.attrs.rename_by_rule(variant.attrs.rename_all());
+                    }
+                }
+            }
+            Body::Struct(_, ref mut fields) => {
+                for field in fields {
+                    field.attrs.rename_by_rule(attrs.rename_all());
+                }
+            }
+        }
+
+        Item {
+            ident: item.ident.clone(),
+            attrs: attrs,
+            body: body,
+            generics: &item.generics,
+        }
+    }
+}
+
+impl<'a> Body<'a> {
+    pub fn all_fields(&'a self) -> Box<Iterator<Item = &'a Field<'a>> + 'a> {
+        match *self {
+            Body::Enum(ref variants) => {
+                Box::new(variants.iter()
+                    .flat_map(|variant| variant.fields.iter()))
+            }
+            Body::Struct(_, ref fields) => Box::new(fields.iter()),
+        }
+    }
+}
+
+fn enum_from_ast<'a>(cx: &Ctxt, variants: &'a [syn::Variant]) -> Vec<Variant<'a>> {
+    variants.iter()
+        .map(|variant| {
+            let (style, fields) = struct_from_ast(cx, &variant.data);
+            Variant {
+                ident: variant.ident.clone(),
+                attrs: attr::Variant::from_ast(cx, variant),
+                style: style,
+                fields: fields,
+            }
+        })
+        .collect()
+}
+
+fn struct_from_ast<'a>(cx: &Ctxt, data: &'a syn::VariantData) -> (Style, Vec<Field<'a>>) {
+    match *data {
+        syn::VariantData::Struct(ref fields) => (Style::Struct, fields_from_ast(cx, fields)),
+        syn::VariantData::Tuple(ref fields) if fields.len() == 1 => {
+            (Style::Newtype, fields_from_ast(cx, fields))
+        }
+        syn::VariantData::Tuple(ref fields) => (Style::Tuple, fields_from_ast(cx, fields)),
+        syn::VariantData::Unit => (Style::Unit, Vec::new()),
+    }
+}
+
+fn fields_from_ast<'a>(cx: &Ctxt, fields: &'a [syn::Field]) -> Vec<Field<'a>> {
+    fields.iter()
+        .enumerate()
+        .map(|(i, field)| {
+            Field {
+                ident: field.ident.clone(),
+                attrs: attr::Field::from_ast(cx, i, field),
+                ty: &field.ty,
+            }
+        })
+        .collect()
+}

serde_codegen_internals/src/attr.rs

@@ -0,0 +1,799 @@
+use Ctxt;
+use syn;
+use syn::MetaItem::{List, NameValue, Word};
+use syn::NestedMetaItem::{Literal, MetaItem};
+use std::str::FromStr;
+
+// This module handles parsing of `#[serde(...)]` attributes. The entrypoints
+// are `attr::Item::from_ast`, `attr::Variant::from_ast`, and
+// `attr::Field::from_ast`. Each returns an instance of the corresponding
+// struct. Note that none of them return a Result. Unrecognized, malformed, or
+// duplicated attributes result in a span_err but otherwise are ignored. The
+// user will see errors simultaneously for all bad attributes in the crate
+// rather than just the first.
+
+pub use case::RenameRule;
+
+struct Attr<'c, T> {
+    cx: &'c Ctxt,
+    name: &'static str,
+    value: Option<T>,
+}
+
+impl<'c, T> Attr<'c, T> {
+    fn none(cx: &'c Ctxt, name: &'static str) -> Self {
+        Attr {
+            cx: cx,
+            name: name,
+            value: None,
+        }
+    }
+
+    fn set(&mut self, value: T) {
+        if self.value.is_some() {
+            self.cx.error(format!("duplicate serde attribute `{}`", self.name));
+        } else {
+            self.value = Some(value);
+        }
+    }
+
+    fn set_opt(&mut self, value: Option<T>) {
+        if let Some(value) = value {
+            self.set(value);
+        }
+    }
+
+    fn set_if_none(&mut self, value: T) {
+        if self.value.is_none() {
+            self.value = Some(value);
+        }
+    }
+
+    fn get(self) -> Option<T> {
+        self.value
+    }
+}
+
+struct BoolAttr<'c>(Attr<'c, ()>);
+
+impl<'c> BoolAttr<'c> {
+    fn none(cx: &'c Ctxt, name: &'static str) -> Self {
+        BoolAttr(Attr::none(cx, name))
+    }
+
+    fn set_true(&mut self) {
+        self.0.set(());
+    }
+
+    fn get(&self) -> bool {
+        self.0.value.is_some()
+    }
+}
+
+#[derive(Debug)]
+pub struct Name {
+    serialize: String,
+    deserialize: String,
+}
+
+impl Name {
+    /// Return the container name for the container when serializing.
+    pub fn serialize_name(&self) -> String {
+        self.serialize.clone()
+    }
+
+    /// Return the container name for the container when deserializing.
+    pub fn deserialize_name(&self) -> String {
+        self.deserialize.clone()
+    }
+}
+
+/// Represents container (e.g. struct) attribute information
+#[derive(Debug)]
+pub struct Item {
+    name: Name,
+    deny_unknown_fields: bool,
+    default: Default,
+    rename_all: RenameRule,
+    ser_bound: Option<Vec<syn::WherePredicate>>,
+    de_bound: Option<Vec<syn::WherePredicate>>,
+    tag: EnumTag,
+}
+
+/// Styles of representing an enum.
+#[derive(Debug)]
+pub enum EnumTag {
+    /// The default.
+    ///
+    /// ```json
+    /// {"variant1": {"key1": "value1", "key2": "value2"}}
+    /// ```
+    External,
+
+    /// `#[serde(tag = "type")]`
+    ///
+    /// ```json
+    /// {"type": "variant1", "key1": "value1", "key2": "value2"}
+    /// ```
+    Internal { tag: String },
+
+    /// `#[serde(tag = "t", content = "c")]`
+    ///
+    /// ```json
+    /// {"t": "variant1", "c": {"key1": "value1", "key2": "value2"}}
+    /// ```
+    Adjacent { tag: String, content: String },
+
+    /// `#[serde(untagged)]`
+    ///
+    /// ```json
+    /// {"key1": "value1", "key2": "value2"}
+    /// ```
+    None,
+}
+
+impl Item {
+    /// Extract out the `#[serde(...)]` attributes from an item.
+    pub fn from_ast(cx: &Ctxt, item: &syn::MacroInput) -> Self {
+        let mut ser_name = Attr::none(cx, "rename");
+        let mut de_name = Attr::none(cx, "rename");
+        let mut deny_unknown_fields = BoolAttr::none(cx, "deny_unknown_fields");
+        let mut default = Attr::none(cx, "default");
+        let mut rename_all = Attr::none(cx, "rename_all");
+        let mut ser_bound = Attr::none(cx, "bound");
+        let mut de_bound = Attr::none(cx, "bound");
+        let mut untagged = BoolAttr::none(cx, "untagged");
+        let mut internal_tag = Attr::none(cx, "tag");
+        let mut content = Attr::none(cx, "content");
+
+        for meta_items in item.attrs.iter().filter_map(get_serde_meta_items) {
+            for meta_item in meta_items {
+                match meta_item {
+                    // Parse `#[serde(rename="foo")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "rename" => {
+                        if let Ok(s) = get_string_from_lit(cx, name.as_ref(), name.as_ref(), lit) {
+                            ser_name.set(s.clone());
+                            de_name.set(s);
+                        }
+                    }
+
+                    // Parse `#[serde(rename(serialize="foo", deserialize="bar"))]`
+                    MetaItem(List(ref name, ref meta_items)) if name == "rename" => {
+                        if let Ok((ser, de)) = get_renames(cx, meta_items) {
+                            ser_name.set_opt(ser);
+                            de_name.set_opt(de);
+                        }
+                    }
+
+                    // Parse `#[serde(rename_all="foo")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "rename_all" => {
+                        if let Ok(s) = get_string_from_lit(cx, name.as_ref(), name.as_ref(), lit) {
+                            match RenameRule::from_str(&s) {
+                                Ok(rename_rule) => rename_all.set(rename_rule),
+                                Err(()) => {
+                                    cx.error(format!("unknown rename rule for #[serde(rename_all \
+                                                      = {:?})]",
+                                                     s))
+                                }
+                            }
+                        }
+                    }
+
+                    // Parse `#[serde(deny_unknown_fields)]`
+                    MetaItem(Word(ref name)) if name == "deny_unknown_fields" => {
+                        deny_unknown_fields.set_true();
+                    }
+
+                    // Parse `#[serde(default)]`
+                    MetaItem(Word(ref name)) if name == "default" => {
+                        match item.body {
+                            syn::Body::Struct(syn::VariantData::Struct(_)) => {
+                                default.set(Default::Default);
+                            }
+                            _ => {
+                                cx.error("#[serde(default)] can only be used on structs \
+                                          with named fields")
+                            }
+                        }
+                    }
+
+                    // Parse `#[serde(default="...")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "default" => {
+                        if let Ok(path) = parse_lit_into_path(cx, name.as_ref(), lit) {
+                            match item.body {
+                                syn::Body::Struct(syn::VariantData::Struct(_)) => {
+                                    default.set(Default::Path(path));
+                                }
+                                _ => {
+                                    cx.error("#[serde(default = \"...\")] can only be used \
+                                              on structs with named fields")
+                                }
+                            }
+                        }
+                    }
+
+                    // Parse `#[serde(bound="D: Serialize")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "bound" => {
+                        if let Ok(where_predicates) =
+                            parse_lit_into_where(cx, name.as_ref(), name.as_ref(), lit) {
+                            ser_bound.set(where_predicates.clone());
+                            de_bound.set(where_predicates);
+                        }
+                    }
+
+                    // Parse `#[serde(bound(serialize="D: Serialize", deserialize="D: Deserialize"))]`
+                    MetaItem(List(ref name, ref meta_items)) if name == "bound" => {
+                        if let Ok((ser, de)) = get_where_predicates(cx, meta_items) {
+                            ser_bound.set_opt(ser);
+                            de_bound.set_opt(de);
+                        }
+                    }
+
+                    // Parse `#[serde(untagged)]`
+                    MetaItem(Word(ref name)) if name == "untagged" => {
+                        match item.body {
+                            syn::Body::Enum(_) => {
+                                untagged.set_true();
+                            }
+                            syn::Body::Struct(_) => {
+                                cx.error("#[serde(untagged)] can only be used on enums")
+                            }
+                        }
+                    }
+
+                    // Parse `#[serde(tag = "type")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "tag" => {
+                        if let Ok(s) = get_string_from_lit(cx, name.as_ref(), name.as_ref(), lit) {
+                            match item.body {
+                                syn::Body::Enum(_) => {
+                                    internal_tag.set(s);
+                                }
+                                syn::Body::Struct(_) => {
+                                    cx.error("#[serde(tag = \"...\")] can only be used on enums")
+                                }
+                            }
+                        }
+                    }
+
+                    // Parse `#[serde(content = "c")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "content" => {
+                        if let Ok(s) = get_string_from_lit(cx, name.as_ref(), name.as_ref(), lit) {
+                            match item.body {
+                                syn::Body::Enum(_) => {
+                                    content.set(s);
+                                }
+                                syn::Body::Struct(_) => {
+                                    cx.error("#[serde(content = \"...\")] can only be used on \
+                                              enums")
+                                }
+                            }
+                        }
+                    }
+
+                    MetaItem(ref meta_item) => {
+                        cx.error(format!("unknown serde container attribute `{}`",
+                                         meta_item.name()));
+                    }
+
+                    Literal(_) => {
+                        cx.error("unexpected literal in serde container attribute");
+                    }
+                }
+            }
+        }
+
+        let tag = match (untagged.get(), internal_tag.get(), content.get()) {
+            (false, None, None) => EnumTag::External,
+            (true, None, None) => EnumTag::None,
+            (false, Some(tag), None) => {
+                // Check that there are no tuple variants.
+                if let syn::Body::Enum(ref variants) = item.body {
+                    for variant in variants {
+                        match variant.data {
+                            syn::VariantData::Struct(_) |
+                            syn::VariantData::Unit => {}
+                            syn::VariantData::Tuple(ref fields) => {
+                                if fields.len() != 1 {
+                                    cx.error("#[serde(tag = \"...\")] cannot be used with tuple \
+                                              variants");
+                                    break;
+                                }
+                            }
+                        }
+                    }
+                }
+                EnumTag::Internal { tag: tag }
+            }
+            (true, Some(_), None) => {
+                cx.error("enum cannot be both untagged and internally tagged");
+                EnumTag::External // doesn't matter, will error
+            }
+            (false, None, Some(_)) => {
+                cx.error("#[serde(tag = \"...\", content = \"...\")] must be used together");
+                EnumTag::External
+            }
+            (true, None, Some(_)) => {
+                cx.error("untagged enum cannot have #[serde(content = \"...\")]");
+                EnumTag::External
+            }
+            (false, Some(tag), Some(content)) => {
+                EnumTag::Adjacent {
+                    tag: tag,
+                    content: content,
+                }
+            }
+            (true, Some(_), Some(_)) => {
+                cx.error("untagged enum cannot have #[serde(tag = \"...\", content = \"...\")]");
+                EnumTag::External
+            }
+        };
+
+        Item {
+            name: Name {
+                serialize: ser_name.get().unwrap_or_else(|| item.ident.to_string()),
+                deserialize: de_name.get().unwrap_or_else(|| item.ident.to_string()),
+            },
+            deny_unknown_fields: deny_unknown_fields.get(),
+            default: default.get().unwrap_or(Default::None),
+            rename_all: rename_all.get().unwrap_or(RenameRule::None),
+            ser_bound: ser_bound.get(),
+            de_bound: de_bound.get(),
+            tag: tag,
+        }
+    }
+
+    pub fn name(&self) -> &Name {
+        &self.name
+    }
+
+    pub fn rename_all(&self) -> &RenameRule {
+        &self.rename_all
+    }
+
+    pub fn deny_unknown_fields(&self) -> bool {
+        self.deny_unknown_fields
+    }
+
+    pub fn default(&self) -> &Default {
+        &self.default
+    }
+
+    pub fn ser_bound(&self) -> Option<&[syn::WherePredicate]> {
+        self.ser_bound.as_ref().map(|vec| &vec[..])
+    }
+
+    pub fn de_bound(&self) -> Option<&[syn::WherePredicate]> {
+        self.de_bound.as_ref().map(|vec| &vec[..])
+    }
+
+    pub fn tag(&self) -> &EnumTag {
+        &self.tag
+    }
+}
+
+/// Represents variant attribute information
+#[derive(Debug)]
+pub struct Variant {
+    name: Name,
+    ser_renamed: bool,
+    de_renamed: bool,
+    rename_all: RenameRule,
+    skip_deserializing: bool,
+    skip_serializing: bool,
+}
+
+impl Variant {
+    pub fn from_ast(cx: &Ctxt, variant: &syn::Variant) -> Self {
+        let mut ser_name = Attr::none(cx, "rename");
+        let mut de_name = Attr::none(cx, "rename");
+        let mut skip_deserializing = BoolAttr::none(cx, "skip_deserializing");
+        let mut skip_serializing = BoolAttr::none(cx, "skip_serializing");
+        let mut rename_all = Attr::none(cx, "rename_all");
+
+        for meta_items in variant.attrs.iter().filter_map(get_serde_meta_items) {
+            for meta_item in meta_items {
+                match meta_item {
+                    // Parse `#[serde(rename="foo")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "rename" => {
+                        if let Ok(s) = get_string_from_lit(cx, name.as_ref(), name.as_ref(), lit) {
+                            ser_name.set(s.clone());
+                            de_name.set(s);
+                        }
+                    }
+
+                    // Parse `#[serde(rename(serialize="foo", deserialize="bar"))]`
+                    MetaItem(List(ref name, ref meta_items)) if name == "rename" => {
+                        if let Ok((ser, de)) = get_renames(cx, meta_items) {
+                            ser_name.set_opt(ser);
+                            de_name.set_opt(de);
+                        }
+                    }
+
+                    // Parse `#[serde(rename_all="foo")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "rename_all" => {
+                        if let Ok(s) = get_string_from_lit(cx, name.as_ref(), name.as_ref(), lit) {
+                            match RenameRule::from_str(&s) {
+                                Ok(rename_rule) => rename_all.set(rename_rule),
+                                Err(()) => {
+                                    cx.error(format!("unknown rename rule for #[serde(rename_all \
+                                                      = {:?})]",
+                                                     s))
+                                }
+                            }
+                        }
+                    }
+
+                    // Parse `#[serde(skip_deserializing)]`
+                    MetaItem(Word(ref name)) if name == "skip_deserializing" => {
+                        skip_deserializing.set_true();
+                    }
+                    // Parse `#[serde(skip_serializing)]`
+                    MetaItem(Word(ref name)) if name == "skip_serializing" => {
+                        skip_serializing.set_true();
+                    }
+
+                    MetaItem(ref meta_item) => {
+                        cx.error(format!("unknown serde variant attribute `{}`", meta_item.name()));
+                    }
+
+                    Literal(_) => {
+                        cx.error("unexpected literal in serde variant attribute");
+                    }
+                }
+            }
+        }
+
+        let ser_name = ser_name.get();
+        let ser_renamed = ser_name.is_some();
+        let de_name = de_name.get();
+        let de_renamed = de_name.is_some();
+        Variant {
+            name: Name {
+                serialize: ser_name.unwrap_or_else(|| variant.ident.to_string()),
+                deserialize: de_name.unwrap_or_else(|| variant.ident.to_string()),
+            },
+            ser_renamed: ser_renamed,
+            de_renamed: de_renamed,
+            rename_all: rename_all.get().unwrap_or(RenameRule::None),
+            skip_deserializing: skip_deserializing.get(),
+            skip_serializing: skip_serializing.get(),
+        }
+    }
+
+    pub fn name(&self) -> &Name {
+        &self.name
+    }
+
+    pub fn rename_by_rule(&mut self, rule: &RenameRule) {
+        if !self.ser_renamed {
+            self.name.serialize = rule.apply_to_variant(&self.name.serialize);
+        }
+        if !self.de_renamed {
+            self.name.deserialize = rule.apply_to_variant(&self.name.deserialize);
+        }
+    }
+
+    pub fn rename_all(&self) -> &RenameRule {
+        &self.rename_all
+    }
+
+    pub fn skip_deserializing(&self) -> bool {
+        self.skip_deserializing
+    }
+
+    pub fn skip_serializing(&self) -> bool {
+        self.skip_serializing
+    }
+}
+
+/// Represents field attribute information
+#[derive(Debug)]
+pub struct Field {
+    name: Name,
+    ser_renamed: bool,
+    de_renamed: bool,
+    skip_serializing: bool,
+    skip_deserializing: bool,
+    skip_serializing_if: Option<syn::Path>,
+    default: Default,
+    serialize_with: Option<syn::Path>,
+    deserialize_with: Option<syn::Path>,
+    ser_bound: Option<Vec<syn::WherePredicate>>,
+    de_bound: Option<Vec<syn::WherePredicate>>,
+}
+
+/// Represents the default to use for a field when deserializing.
+#[derive(Debug, PartialEq)]
+pub enum Default {
+    /// Field must always be specified because it does not have a default.
+    None,
+    /// The default is given by `std::default::Default::default()`.
+    Default,
+    /// The default is given by this function.
+    Path(syn::Path),
+}
+
+impl Field {
+    /// Extract out the `#[serde(...)]` attributes from a struct field.
+    pub fn from_ast(cx: &Ctxt, index: usize, field: &syn::Field) -> Self {
+        let mut ser_name = Attr::none(cx, "rename");
+        let mut de_name = Attr::none(cx, "rename");
+        let mut skip_serializing = BoolAttr::none(cx, "skip_serializing");
+        let mut skip_deserializing = BoolAttr::none(cx, "skip_deserializing");
+        let mut skip_serializing_if = Attr::none(cx, "skip_serializing_if");
+        let mut default = Attr::none(cx, "default");
+        let mut serialize_with = Attr::none(cx, "serialize_with");
+        let mut deserialize_with = Attr::none(cx, "deserialize_with");
+        let mut ser_bound = Attr::none(cx, "bound");
+        let mut de_bound = Attr::none(cx, "bound");
+
+        let ident = match field.ident {
+            Some(ref ident) => ident.to_string(),
+            None => index.to_string(),
+        };
+
+        for meta_items in field.attrs.iter().filter_map(get_serde_meta_items) {
+            for meta_item in meta_items {
+                match meta_item {
+                    // Parse `#[serde(rename="foo")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "rename" => {
+                        if let Ok(s) = get_string_from_lit(cx, name.as_ref(), name.as_ref(), lit) {
+                            ser_name.set(s.clone());
+                            de_name.set(s);
+                        }
+                    }
+
+                    // Parse `#[serde(rename(serialize="foo", deserialize="bar"))]`
+                    MetaItem(List(ref name, ref meta_items)) if name == "rename" => {
+                        if let Ok((ser, de)) = get_renames(cx, meta_items) {
+                            ser_name.set_opt(ser);
+                            de_name.set_opt(de);
+                        }
+                    }
+
+                    // Parse `#[serde(default)]`
+                    MetaItem(Word(ref name)) if name == "default" => {
+                        default.set(Default::Default);
+                    }
+
+                    // Parse `#[serde(default="...")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "default" => {
+                        if let Ok(path) = parse_lit_into_path(cx, name.as_ref(), lit) {
+                            default.set(Default::Path(path));
+                        }
+                    }
+
+                    // Parse `#[serde(skip_serializing)]`
+                    MetaItem(Word(ref name)) if name == "skip_serializing" => {
+                        skip_serializing.set_true();
+                    }
+
+                    // Parse `#[serde(skip_deserializing)]`
+                    MetaItem(Word(ref name)) if name == "skip_deserializing" => {
+                        skip_deserializing.set_true();
+                    }
+
+                    // Parse `#[serde(skip_serializing_if="...")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "skip_serializing_if" => {
+                        if let Ok(path) = parse_lit_into_path(cx, name.as_ref(), lit) {
+                            skip_serializing_if.set(path);
+                        }
+                    }
+
+                    // Parse `#[serde(serialize_with="...")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "serialize_with" => {
+                        if let Ok(path) = parse_lit_into_path(cx, name.as_ref(), lit) {
+                            serialize_with.set(path);
+                        }
+                    }
+
+                    // Parse `#[serde(deserialize_with="...")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "deserialize_with" => {
+                        if let Ok(path) = parse_lit_into_path(cx, name.as_ref(), lit) {
+                            deserialize_with.set(path);
+                        }
+                    }
+
+                    // Parse `#[serde(with="...")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "with" => {
+                        if let Ok(path) = parse_lit_into_path(cx, name.as_ref(), lit) {
+                            let mut ser_path = path.clone();
+                            ser_path.segments.push("serialize".into());
+                            serialize_with.set(ser_path);
+                            let mut de_path = path;
+                            de_path.segments.push("deserialize".into());
+                            deserialize_with.set(de_path);
+                        }
+                    }
+
+                    // Parse `#[serde(bound="D: Serialize")]`
+                    MetaItem(NameValue(ref name, ref lit)) if name == "bound" => {
+                        if let Ok(where_predicates) =
+                            parse_lit_into_where(cx, name.as_ref(), name.as_ref(), lit) {
+                            ser_bound.set(where_predicates.clone());
+                            de_bound.set(where_predicates);
+                        }
+                    }
+
+                    // Parse `#[serde(bound(serialize="D: Serialize", deserialize="D: Deserialize"))]`
+                    MetaItem(List(ref name, ref meta_items)) if name == "bound" => {
+                        if let Ok((ser, de)) = get_where_predicates(cx, meta_items) {
+                            ser_bound.set_opt(ser);
+                            de_bound.set_opt(de);
+                        }
+                    }
+
+                    MetaItem(ref meta_item) => {
+                        cx.error(format!("unknown serde field attribute `{}`", meta_item.name()));
+                    }
+
+                    Literal(_) => {
+                        cx.error("unexpected literal in serde field attribute");
+                    }
+                }
+            }
+        }
+
+        // Is skip_deserializing, initialize the field to Default::default()
+        // unless a different default is specified by `#[serde(default="...")]`
+        if skip_deserializing.0.value.is_some() {
+            default.set_if_none(Default::Default);
+        }
+
+        let ser_name = ser_name.get();
+        let ser_renamed = ser_name.is_some();
+        let de_name = de_name.get();
+        let de_renamed = de_name.is_some();
+        Field {
+            name: Name {
+                serialize: ser_name.unwrap_or_else(|| ident.clone()),
+                deserialize: de_name.unwrap_or(ident),
+            },
+            ser_renamed: ser_renamed,
+            de_renamed: de_renamed,
+            skip_serializing: skip_serializing.get(),
+            skip_deserializing: skip_deserializing.get(),
+            skip_serializing_if: skip_serializing_if.get(),
+            default: default.get().unwrap_or(Default::None),
+            serialize_with: serialize_with.get(),
+            deserialize_with: deserialize_with.get(),
+            ser_bound: ser_bound.get(),
+            de_bound: de_bound.get(),
+        }
+    }
+
+    pub fn name(&self) -> &Name {
+        &self.name
+    }
+
+    pub fn rename_by_rule(&mut self, rule: &RenameRule) {
+        if !self.ser_renamed {
+            self.name.serialize = rule.apply_to_field(&self.name.serialize);
+        }
+        if !self.de_renamed {
+            self.name.deserialize = rule.apply_to_field(&self.name.deserialize);
+        }
+    }
+
+    pub fn skip_serializing(&self) -> bool {
+        self.skip_serializing
+    }
+
+    pub fn skip_deserializing(&self) -> bool {
+        self.skip_deserializing
+    }
+
+    pub fn skip_serializing_if(&self) -> Option<&syn::Path> {
+        self.skip_serializing_if.as_ref()
+    }
+
+    pub fn default(&self) -> &Default {
+        &self.default
+    }
+
+    pub fn serialize_with(&self) -> Option<&syn::Path> {
+        self.serialize_with.as_ref()
+    }
+
+    pub fn deserialize_with(&self) -> Option<&syn::Path> {
+        self.deserialize_with.as_ref()
+    }
+
+    pub fn ser_bound(&self) -> Option<&[syn::WherePredicate]> {
+        self.ser_bound.as_ref().map(|vec| &vec[..])
+    }
+
+    pub fn de_bound(&self) -> Option<&[syn::WherePredicate]> {
+        self.de_bound.as_ref().map(|vec| &vec[..])
+    }
+}
+
+type SerAndDe<T> = (Option<T>, Option<T>);
+
+fn get_ser_and_de<T, F>(cx: &Ctxt,
+                        attr_name: &'static str,
+                        items: &[syn::NestedMetaItem],
+                        f: F)
+                        -> Result<SerAndDe<T>, ()>
+    where F: Fn(&Ctxt, &str, &str, &syn::Lit) -> Result<T, ()>
+{
+    let mut ser_item = Attr::none(cx, attr_name);
+    let mut de_item = Attr::none(cx, attr_name);
+
+    for item in items {
+        match *item {
+            MetaItem(NameValue(ref name, ref lit)) if name == "serialize" => {
+                if let Ok(v) = f(cx, attr_name, name.as_ref(), lit) {
+                    ser_item.set(v);
+                }
+            }
+
+            MetaItem(NameValue(ref name, ref lit)) if name == "deserialize" => {
+                if let Ok(v) = f(cx, attr_name, name.as_ref(), lit) {
+                    de_item.set(v);
+                }
+            }
+
+            _ => {
+                cx.error(format!("malformed {0} attribute, expected `{0}(serialize = ..., \
+                                  deserialize = ...)`",
+                                 attr_name));
+                return Err(());
+            }
+        }
+    }
+
+    Ok((ser_item.get(), de_item.get()))
+}
+
+fn get_renames(cx: &Ctxt, items: &[syn::NestedMetaItem]) -> Result<SerAndDe<String>, ()> {
+    get_ser_and_de(cx, "rename", items, get_string_from_lit)
+}
+
+fn get_where_predicates(cx: &Ctxt,
+                        items: &[syn::NestedMetaItem])
+                        -> Result<SerAndDe<Vec<syn::WherePredicate>>, ()> {
+    get_ser_and_de(cx, "bound", items, parse_lit_into_where)
+}
+
+pub fn get_serde_meta_items(attr: &syn::Attribute) -> Option<Vec<syn::NestedMetaItem>> {
+    match attr.value {
+        List(ref name, ref items) if name == "serde" => Some(items.iter().cloned().collect()),
+        _ => None,
+    }
+}
+
+fn get_string_from_lit(cx: &Ctxt,
+                       attr_name: &str,
+                       meta_item_name: &str,
+                       lit: &syn::Lit)
+                       -> Result<String, ()> {
+    if let syn::Lit::Str(ref s, _) = *lit {
+        Ok(s.clone())
+    } else {
+        cx.error(format!("expected serde {} attribute to be a string: `{} = \"...\"`",
+                         attr_name,
+                         meta_item_name));
+        Err(())
+    }
+}
+
+fn parse_lit_into_path(cx: &Ctxt, attr_name: &str, lit: &syn::Lit) -> Result<syn::Path, ()> {
+    let string = try!(get_string_from_lit(cx, attr_name, attr_name, lit));
+    syn::parse_path(&string).map_err(|err| cx.error(err))
+}
+
+fn parse_lit_into_where(cx: &Ctxt,
+                        attr_name: &str,
+                        meta_item_name: &str,
+                        lit: &syn::Lit)
+                        -> Result<Vec<syn::WherePredicate>, ()> {
+    let string = try!(get_string_from_lit(cx, attr_name, meta_item_name, lit));
+    if string.is_empty() {
+        return Ok(Vec::new());
+    }
+
+    let where_string = format!("where {}", string);
+
+    syn::parse_where_clause(&where_string).map(|wh| wh.predicates).map_err(|err| cx.error(err))
+}

serde_codegen_internals/src/case.rs

@@ -0,0 +1,115 @@
+use std::ascii::AsciiExt;
+use std::str::FromStr;
+
+use self::RenameRule::*;
+
+#[derive(Debug, PartialEq)]
+pub enum RenameRule {
+    /// Don't apply a default rename rule.
+    None,
+    /// Rename direct children to "PascalCase" style, as typically used for enum variants.
+    PascalCase,
+    /// Rename direct children to "camelCase" style.
+    CamelCase,
+    /// Rename direct children to "snake_case" style, as commonly used for fields.
+    SnakeCase,
+    /// Rename direct children to "SCREAMING_SNAKE_CASE" style, as commonly used for constants.
+    ScreamingSnakeCase,
+    /// Rename direct children to "kebab-case" style.
+    KebabCase,
+}
+
+impl RenameRule {
+    pub fn apply_to_variant(&self, variant: &str) -> String {
+        match *self {
+            None | PascalCase => variant.to_owned(),
+            CamelCase => variant[..1].to_ascii_lowercase() + &variant[1..],
+            SnakeCase => {
+                let mut snake = String::new();
+                for (i, ch) in variant.char_indices() {
+                    if i > 0 && ch.is_uppercase() {
+                        snake.push('_');
+                    }
+                    snake.push(ch.to_ascii_lowercase());
+                }
+                snake
+            }
+            ScreamingSnakeCase => SnakeCase.apply_to_variant(variant).to_ascii_uppercase(),
+            KebabCase => SnakeCase.apply_to_variant(variant).replace('_', "-"),
+        }
+    }
+
+    pub fn apply_to_field(&self, field: &str) -> String {
+        match *self {
+            None | SnakeCase => field.to_owned(),
+            PascalCase => {
+                let mut pascal = String::new();
+                let mut capitalize = true;
+                for ch in field.chars() {
+                    if ch == '_' {
+                        capitalize = true;
+                    } else if capitalize {
+                        pascal.push(ch.to_ascii_uppercase());
+                        capitalize = false;
+                    } else {
+                        pascal.push(ch);
+                    }
+                }
+                pascal
+            }
+            CamelCase => {
+                let pascal = PascalCase.apply_to_field(field);
+                pascal[..1].to_ascii_lowercase() + &pascal[1..]
+            }
+            ScreamingSnakeCase => field.to_ascii_uppercase(),
+            KebabCase => field.replace('_', "-"),
+        }
+    }
+}
+
+impl FromStr for RenameRule {
+    type Err = ();
+
+    fn from_str(rename_all_str: &str) -> Result<Self, Self::Err> {
+        match rename_all_str {
+            "PascalCase" => Ok(PascalCase),
+            "camelCase" => Ok(CamelCase),
+            "snake_case" => Ok(SnakeCase),
+            "SCREAMING_SNAKE_CASE" => Ok(ScreamingSnakeCase),
+            "kebab-case" => Ok(KebabCase),
+            _ => Err(()),
+        }
+    }
+}
+
+#[test]
+fn rename_variants() {
+    for &(original, camel, snake, screaming, kebab) in
+        &[("Outcome", "outcome", "outcome", "OUTCOME", "outcome"),
+          ("VeryTasty", "veryTasty", "very_tasty", "VERY_TASTY", "very-tasty"),
+          ("A", "a", "a", "A", "a"),
+          ("Z42", "z42", "z42", "Z42", "z42")] {
+        assert_eq!(None.apply_to_variant(original), original);
+        assert_eq!(PascalCase.apply_to_variant(original), original);
+        assert_eq!(CamelCase.apply_to_variant(original), camel);
+        assert_eq!(SnakeCase.apply_to_variant(original), snake);
+        assert_eq!(ScreamingSnakeCase.apply_to_variant(original), screaming);
+        assert_eq!(KebabCase.apply_to_variant(original), kebab);
+    }
+}
+
+#[test]
+fn rename_fields() {
+    for &(original, pascal, camel, screaming, kebab) in
+        &[("outcome", "Outcome", "outcome", "OUTCOME", "outcome"),
+          ("very_tasty", "VeryTasty", "veryTasty", "VERY_TASTY", "very-tasty"),
+          ("a", "A", "a", "A", "a"),
+          ("z42", "Z42", "z42", "Z42", "z42")] {
+        assert_eq!(None.apply_to_field(original), original);
+        assert_eq!(PascalCase.apply_to_field(original), pascal);
+        assert_eq!(CamelCase.apply_to_field(original), camel);
+        assert_eq!(SnakeCase.apply_to_field(original), original);
+        assert_eq!(ScreamingSnakeCase.apply_to_field(original), screaming);
+        assert_eq!(KebabCase.apply_to_field(original), kebab);
+    }
+}

serde_codegen_internals/src/ctxt.rs

@@ -0,0 +1,41 @@
+use std::fmt::Display;
+use std::cell::RefCell;
+
+#[derive(Default)]
+pub struct Ctxt {
+    errors: RefCell<Option<Vec<String>>>,
+}
+
+impl Ctxt {
+    pub fn new() -> Self {
+        Ctxt { errors: RefCell::new(Some(Vec::new())) }
+    }
+
+    pub fn error<T: Display>(&self, msg: T) {
+        self.errors.borrow_mut().as_mut().unwrap().push(msg.to_string());
+    }
+
+    pub fn check(self) -> Result<(), String> {
+        let mut errors = self.errors.borrow_mut().take().unwrap();
+        match errors.len() {
+            0 => Ok(()),
+            1 => Err(errors.pop().unwrap()),
+            n => {
+                let mut msg = format!("{} errors:", n);
+                for err in errors {
+                    msg.push_str("\n\t# ");
+                    msg.push_str(&err);
+                }
+                Err(msg)
+            }
+        }
+    }
+}
+
+impl Drop for Ctxt {
+    fn drop(&mut self) {
+        if self.errors.borrow().is_some() {
+            panic!("forgot to check for errors");
+        }
+    }
+}

serde_codegen_internals/src/lib.rs

@@ -0,0 +1,9 @@
+extern crate syn;
+
+pub mod ast;
+pub mod attr;
+
+mod ctxt;
+pub use ctxt::Ctxt;
+
+mod case;

serde_derive/Cargo.toml

@@ -0,0 +1,27 @@
+[package]
+name = "serde_derive"
+version = "0.9.10"
+authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
+license = "MIT/Apache-2.0"
+description = "Macros 1.1 implementation of #[derive(Serialize, Deserialize)]"
+homepage = "https://serde.rs"
+repository = "https://github.com/serde-rs/serde"
+documentation = "https://serde.rs/codegen.html"
+keywords = ["serde", "serialization", "no_std"]
+readme = "../README.md"
+include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
+
+[features]
+unstable = []
+
+[badges]
+travis-ci = { repository = "serde-rs/serde" }
+
+[lib]
+name = "serde_derive"
+proc-macro = true
+
+[dependencies]
+quote = "0.3.8"
+serde_codegen_internals = { version = "=0.14.1", default-features = false, path = "../serde_codegen_internals" }
+syn = { version = "0.11", features = ["visit"] }

serde_derive/LICENSE-APACHE

@@ -0,0 +1 @@
+../LICENSE-APACHE

serde_derive/LICENSE-MIT

@@ -0,0 +1 @@
+../LICENSE-MIT

serde_derive/README.md

@@ -0,0 +1 @@
+../README.md

serde_derive/src/bound.rs

@@ -0,0 +1,228 @@
+use std::collections::HashSet;
+
+use syn::{self, visit};
+
+use internals::ast::Item;
+use internals::attr;
+
+macro_rules! path {
+    ($first:ident $(:: $rest:ident)*) => {
+        syn::Path {
+            global: false,
+            segments: vec![
+                stringify!($first).into(),
+                $(
+                    stringify!($rest).into(),
+                )*
+            ],
+        }
+    };
+
+    (::$first:ident $(:: $rest:ident)*) => {
+        syn::Path {
+            global: true,
+            segments: vec![
+                stringify!($first).into(),
+                $(
+                    stringify!($rest).into(),
+                )*
+            ],
+        }
+    };
+}
+
+// Remove the default from every type parameter because in the generated impls
+// they look like associated types: "error: associated type bindings are not
+// allowed here".
+pub fn without_defaults(generics: &syn::Generics) -> syn::Generics {
+    syn::Generics {
+        ty_params: generics.ty_params
+            .iter()
+            .map(|ty_param| syn::TyParam { default: None, ..ty_param.clone() })
+            .collect(),
+        ..generics.clone()
+    }
+}
+
+pub fn with_where_predicates(generics: &syn::Generics,
+                             predicates: &[syn::WherePredicate])
+                             -> syn::Generics {
+    let mut generics = generics.clone();
+    generics.where_clause.predicates.extend_from_slice(predicates);
+    generics
+}
+
+pub fn with_where_predicates_from_fields<F>(item: &Item,
+                                            generics: &syn::Generics,
+                                            from_field: F)
+                                            -> syn::Generics
+    where F: Fn(&attr::Field) -> Option<&[syn::WherePredicate]>
+{
+    let predicates = item.body
+        .all_fields()
+        .flat_map(|field| from_field(&field.attrs))
+        .flat_map(|predicates| predicates.to_vec());
+
+    let mut generics = generics.clone();
+    generics.where_clause.predicates.extend(predicates);
+    generics
+}
+
+// Puts the given bound on any generic type parameters that are used in fields
+// for which filter returns true.
+//
+// For example, the following struct needs the bound `A: Serialize, B: Serialize`.
+//
+//     struct S<'b, A, B: 'b, C> {
+//         a: A,
+//         b: Option<&'b B>
+//         #[serde(skip_serializing)]
+//         c: C,
+//     }
+pub fn with_bound<F>(item: &Item,
+                     generics: &syn::Generics,
+                     filter: F,
+                     bound: &syn::Path)
+                     -> syn::Generics
+    where F: Fn(&attr::Field) -> bool
+{
+    struct FindTyParams {
+        // Set of all generic type parameters on the current struct (A, B, C in
+        // the example). Initialized up front.
+        all_ty_params: HashSet<syn::Ident>,
+        // Set of generic type parameters used in fields for which filter
+        // returns true (A and B in the example). Filled in as the visitor sees
+        // them.
+        relevant_ty_params: HashSet<syn::Ident>,
+    }
+    impl visit::Visitor for FindTyParams {
+        fn visit_path(&mut self, path: &syn::Path) {
+            if let Some(seg) = path.segments.last() {
+                if seg.ident == "PhantomData" {
+                    // Hardcoded exception, because PhantomData<T> implements
+                    // Serialize and Deserialize whether or not T implements it.
+                    return;
+                }
+            }
+            if !path.global && path.segments.len() == 1 {
+                let id = path.segments[0].ident.clone();
+                if self.all_ty_params.contains(&id) {
+                    self.relevant_ty_params.insert(id);
+                }
+            }
+            visit::walk_path(self, path);
+        }
+    }
+
+    let all_ty_params: HashSet<_> = generics.ty_params
+        .iter()
+        .map(|ty_param| ty_param.ident.clone())
+        .collect();
+
+    let relevant_tys = item.body
+        .all_fields()
+        .filter(|&field| filter(&field.attrs))
+        .map(|field| &field.ty);
+
+    let mut visitor = FindTyParams {
+        all_ty_params: all_ty_params,
+        relevant_ty_params: HashSet::new(),
+    };
+    for ty in relevant_tys {
+        visit::walk_ty(&mut visitor, ty);
+    }
+
+    let new_predicates = generics.ty_params
+        .iter()
+        .map(|ty_param| ty_param.ident.clone())
+        .filter(|id| visitor.relevant_ty_params.contains(id))
+        .map(|id| {
+            syn::WherePredicate::BoundPredicate(syn::WhereBoundPredicate {
+                bound_lifetimes: Vec::new(),
+                // the type parameter that is being bounded e.g. T
+                bounded_ty: syn::Ty::Path(None, id.into()),
+                // the bound e.g. Serialize
+                bounds: vec![syn::TyParamBound::Trait(
+                    syn::PolyTraitRef {
+                        bound_lifetimes: Vec::new(),
+                        trait_ref: bound.clone(),
+                    },
+                    syn::TraitBoundModifier::None
+                )],
+            })
+        });
+
+    let mut generics = generics.clone();
+    generics.where_clause.predicates.extend(new_predicates);
+    generics
+}
+
+pub fn with_self_bound(item: &Item,
+                       generics: &syn::Generics,
+                       bound: &syn::Path)
+                       -> syn::Generics
+{
+    let mut generics = generics.clone();
+    generics.where_clause.predicates.push(
+        syn::WherePredicate::BoundPredicate(syn::WhereBoundPredicate {
+            bound_lifetimes: Vec::new(),
+            // the type that is being bounded e.g. MyStruct<'a, T>
+            bounded_ty: type_of_item(item),
+            // the bound e.g. Default
+            bounds: vec![syn::TyParamBound::Trait(
+                syn::PolyTraitRef {
+                    bound_lifetimes: Vec::new(),
+                    trait_ref: bound.clone(),
+                },
+                syn::TraitBoundModifier::None
+            )],
+        })
+    );
+    generics
+}
+
+pub fn with_lifetime_bound(generics: &syn::Generics,
+                           lifetime: &str)
+                           -> syn::Generics {
+    let mut generics = generics.clone();
+
+    for lifetime_def in &mut generics.lifetimes {
+        lifetime_def.bounds.push(syn::Lifetime::new(lifetime));
+    }
+
+    for ty_param in &mut generics.ty_params {
+        ty_param.bounds.push(syn::TyParamBound::Region(syn::Lifetime::new(lifetime)));
+    }
+
+    generics.lifetimes.push(syn::LifetimeDef {
+        attrs: Vec::new(),
+        lifetime: syn::Lifetime::new(lifetime),
+        bounds: Vec::new(),
+    });
+
+    generics
+}
+
+fn type_of_item(item: &Item) -> syn::Ty {
+    syn::Ty::Path(None, syn::Path {
+        global: false,
+        segments: vec![
+            syn::PathSegment {
+                ident: item.ident.clone(),
+                parameters: syn::PathParameters::AngleBracketed(syn::AngleBracketedParameterData {
+                    lifetimes: item.generics
+                                    .lifetimes
+                                    .iter()
+                                    .map(|def| def.lifetime.clone())
+                                    .collect(),
+                    types: item.generics
+                                .ty_params
+                                .iter()
+                                .map(|param| syn::Ty::Path(None, param.ident.clone().into()))
+                                .collect(),
+                    bindings: Vec::new(),
+                }),
+            }
+        ]
+    })
+}

serde_derive/src/fragment.rs

@@ -0,0 +1,67 @@
+use quote::{Tokens, ToTokens};
+
+pub enum Fragment {
+    /// Tokens that can be used as an expression.
+    Expr(Tokens),
+    /// Tokens that can be used inside a block. The surrounding curly braces are
+    /// not part of these tokens.
+    Block(Tokens),
+}
+
+macro_rules! quote_expr {
+    ($($tt:tt)*) => {
+        $crate::fragment::Fragment::Expr(quote!($($tt)*))
+    }
+}
+
+macro_rules! quote_block {
+    ($($tt:tt)*) => {
+        $crate::fragment::Fragment::Block(quote!($($tt)*))
+    }
+}
+
+/// Interpolate a fragment in place of an expression. This involves surrounding
+/// Block fragments in curly braces.
+pub struct Expr(pub Fragment);
+impl ToTokens for Expr {
+    fn to_tokens(&self, out: &mut Tokens) {
+        match self.0 {
+            Fragment::Expr(ref expr) => expr.to_tokens(out),
+            Fragment::Block(ref block) => {
+                out.append("{");
+                block.to_tokens(out);
+                out.append("}");
+            }
+        }
+    }
+}
+
+/// Interpolate a fragment as the statements of a block.
+pub struct Stmts(pub Fragment);
+impl ToTokens for Stmts {
+    fn to_tokens(&self, out: &mut Tokens) {
+        match self.0 {
+            Fragment::Expr(ref expr) => expr.to_tokens(out),
+            Fragment::Block(ref block) => block.to_tokens(out),
+        }
+    }
+}
+
+/// Interpolate a fragment as the value part of a `match` expression. This
+/// involves putting a comma after expressions and curly braces around blocks.
+pub struct Match(pub Fragment);
+impl ToTokens for Match {
+    fn to_tokens(&self, out: &mut Tokens) {
+        match self.0 {
+            Fragment::Expr(ref expr) => {
+                expr.to_tokens(out);
+                out.append(",");
+            }
+            Fragment::Block(ref block) => {
+                out.append("{");
+                block.to_tokens(out);
+                out.append("}");
+            }
+        }
+    }
+}

serde_derive/src/lib.rs

@@ -0,0 +1,40 @@
+#![cfg_attr(feature = "cargo-clippy", allow(too_many_arguments))]
+#![cfg_attr(feature = "cargo-clippy", allow(used_underscore_binding))]
+
+// The `quote!` macro requires deep recursion.
+#![recursion_limit = "192"]
+
+extern crate syn;
+#[macro_use]
+extern crate quote;
+
+extern crate serde_codegen_internals as internals;
+
+extern crate proc_macro;
+use proc_macro::TokenStream;
+
+#[macro_use]
+mod bound;
+#[macro_use]
+mod fragment;
+
+mod ser;
+mod de;
+
+#[proc_macro_derive(Serialize, attributes(serde))]
+pub fn derive_serialize(input: TokenStream) -> TokenStream {
+    let input = syn::parse_derive_input(&input.to_string()).unwrap();
+    match ser::expand_derive_serialize(&input) {
+        Ok(expanded) => expanded.parse().unwrap(),
+        Err(msg) => panic!(msg),
+    }
+}
+
+#[proc_macro_derive(Deserialize, attributes(serde))]
+pub fn derive_deserialize(input: TokenStream) -> TokenStream {
+    let input = syn::parse_derive_input(&input.to_string()).unwrap();
+    match de::expand_derive_deserialize(&input) {
+        Ok(expanded) => expanded.parse().unwrap(),
+        Err(msg) => panic!(msg),
+    }
+}

serde_derive/src/ser.rs

@@ -0,0 +1,782 @@
+use syn::{self, Ident};
+use quote::Tokens;
+
+use bound;
+use fragment::{Fragment, Stmts, Match};
+use internals::ast::{Body, Field, Item, Style, Variant};
+use internals::{self, attr};
+
+pub fn expand_derive_serialize(item: &syn::DeriveInput) -> Result<Tokens, String> {
+    let ctxt = internals::Ctxt::new();
+    let item = Item::from_ast(&ctxt, item);
+    try!(ctxt.check());
+
+    let ident = &item.ident;
+    let generics = build_generics(&item);
+    let (impl_generics, ty_generics, where_clause) = generics.split_for_impl();
+    let dummy_const = Ident::new(format!("_IMPL_SERIALIZE_FOR_{}", ident));
+    let body = Stmts(serialize_body(&item, &generics));
+
+    Ok(quote! {
+        #[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
+        const #dummy_const: () = {
+            extern crate serde as _serde;
+            #[automatically_derived]
+            impl #impl_generics _serde::Serialize for #ident #ty_generics #where_clause {
+                fn serialize<__S>(&self, _serializer: __S) -> _serde::export::Result<__S::Ok, __S::Error>
+                    where __S: _serde::Serializer
+                {
+                    #body
+                }
+            }
+        };
+    })
+}
+
+// All the generics in the input, plus a bound `T: Serialize` for each generic
+// field type that will be serialized by us.
+fn build_generics(item: &Item) -> syn::Generics {
+    let generics = bound::without_defaults(item.generics);
+
+    let generics =
+        bound::with_where_predicates_from_fields(item, &generics, attr::Field::ser_bound);
+
+    match item.attrs.ser_bound() {
+        Some(predicates) => bound::with_where_predicates(&generics, predicates),
+        None => {
+            bound::with_bound(item,
+                              &generics,
+                              needs_serialize_bound,
+                              &path!(_serde::Serialize))
+        }
+    }
+}
+
+// Fields with a `skip_serializing` or `serialize_with` attribute are not
+// serialized by us so we do not generate a bound. Fields with a `bound`
+// attribute specify their own bound so we do not generate one. All other fields
+// may need a `T: Serialize` bound where T is the type of the field.
+fn needs_serialize_bound(attrs: &attr::Field) -> bool {
+    !attrs.skip_serializing() && attrs.serialize_with().is_none() && attrs.ser_bound().is_none()
+}
+
+fn serialize_body(item: &Item, generics: &syn::Generics) -> Fragment {
+    match item.body {
+        Body::Enum(ref variants) => {
+            serialize_item_enum(&item.ident, generics, variants, &item.attrs)
+        }
+        Body::Struct(Style::Struct, ref fields) => {
+            if fields.iter().any(|field| field.ident.is_none()) {
+                panic!("struct has unnamed fields");
+            }
+
+            serialize_struct(&item.ident, generics, fields, &item.attrs)
+        }
+        Body::Struct(Style::Tuple, ref fields) => {
+            if fields.iter().any(|field| field.ident.is_some()) {
+                panic!("tuple struct has named fields");
+            }
+
+            serialize_tuple_struct(&item.ident, generics, fields, &item.attrs)
+        }
+        Body::Struct(Style::Newtype, ref fields) => {
+            serialize_newtype_struct(&item.ident, generics, &fields[0], &item.attrs)
+        }
+        Body::Struct(Style::Unit, _) => serialize_unit_struct(&item.attrs),
+    }
+}
+
+fn serialize_unit_struct(item_attrs: &attr::Item) -> Fragment {
+    let type_name = item_attrs.name().serialize_name();
+
+    quote_expr! {
+        _serde::Serializer::serialize_unit_struct(_serializer, #type_name)
+    }
+}
+
+fn serialize_newtype_struct(ident: &syn::Ident,
+                            generics: &syn::Generics,
+                            field: &Field,
+                            item_attrs: &attr::Item)
+                            -> Fragment {
+    let type_name = item_attrs.name().serialize_name();
+
+    let mut field_expr = quote!(&self.0);
+    if let Some(path) = field.attrs.serialize_with() {
+        field_expr = wrap_serialize_with(ident, generics, field.ty, path, field_expr);
+    }
+
+    quote_expr! {
+        _serde::Serializer::serialize_newtype_struct(_serializer, #type_name, #field_expr)
+    }
+}
+
+fn serialize_tuple_struct(ident: &syn::Ident,
+                          generics: &syn::Generics,
+                          fields: &[Field],
+                          item_attrs: &attr::Item)
+                          -> Fragment {
+    let serialize_stmts =
+        serialize_tuple_struct_visitor(ident,
+                                       fields,
+                                       generics,
+                                       false,
+                                       quote!(_serde::ser::SerializeTupleStruct::serialize_field));
+
+    let type_name = item_attrs.name().serialize_name();
+    let len = serialize_stmts.len();
+    let let_mut = mut_if(len > 0);
+
+    quote_block! {
+        let #let_mut __serde_state = try!(_serde::Serializer::serialize_tuple_struct(_serializer, #type_name, #len));
+        #(#serialize_stmts)*
+        _serde::ser::SerializeTupleStruct::end(__serde_state)
+    }
+}
+
+fn serialize_struct(ident: &syn::Ident,
+                    generics: &syn::Generics,
+                    fields: &[Field],
+                    item_attrs: &attr::Item)
+                    -> Fragment {
+    let serialize_fields =
+        serialize_struct_visitor(ident,
+                                 fields,
+                                 generics,
+                                 false,
+                                 quote!(_serde::ser::SerializeStruct::serialize_field));
+
+    let type_name = item_attrs.name().serialize_name();
+
+    let mut serialized_fields = fields.iter()
+        .filter(|&field| !field.attrs.skip_serializing())
+        .peekable();
+
+    let let_mut = mut_if(serialized_fields.peek().is_some());
+
+    let len = serialized_fields.map(|field| {
+            let ident = field.ident.clone().expect("struct has unnamed fields");
+            let field_expr = quote!(&self.#ident);
+
+            match field.attrs.skip_serializing_if() {
+                Some(path) => quote!(if #path(#field_expr) { 0 } else { 1 }),
+                None => quote!(1),
+            }
+        })
+        .fold(quote!(0), |sum, expr| quote!(#sum + #expr));
+
+    quote_block! {
+        let #let_mut __serde_state = try!(_serde::Serializer::serialize_struct(_serializer, #type_name, #len));
+        #(#serialize_fields)*
+        _serde::ser::SerializeStruct::end(__serde_state)
+    }
+}
+
+fn serialize_item_enum(ident: &syn::Ident,
+                       generics: &syn::Generics,
+                       variants: &[Variant],
+                       item_attrs: &attr::Item)
+                       -> Fragment {
+    let arms: Vec<_> = variants.iter()
+        .enumerate()
+        .map(|(variant_index, variant)| {
+            serialize_variant(ident,
+                              generics,
+                              variant,
+                              variant_index,
+                              item_attrs)
+        })
+        .collect();
+
+    quote_expr! {
+        match *self {
+            #(#arms)*
+        }
+    }
+}
+
+fn serialize_variant(ident: &syn::Ident,
+                     generics: &syn::Generics,
+                     variant: &Variant,
+                     variant_index: usize,
+                     item_attrs: &attr::Item)
+                     -> Tokens {
+    let variant_ident = variant.ident.clone();
+
+    if variant.attrs.skip_serializing() {
+        let skipped_msg = format!("the enum variant {}::{} cannot be serialized",
+                                  ident, variant_ident);
+        let skipped_err = quote! {
+            _serde::export::Err(_serde::ser::Error::custom(#skipped_msg))
+        };
+        let fields_pat = match variant.style {
+            Style::Unit => quote!(),
+            Style::Newtype | Style::Tuple => quote!( (..) ),
+            Style::Struct => quote!( {..} ),
+        };
+        quote! {
+            #ident::#variant_ident #fields_pat => #skipped_err,
+        }
+    } else {
+        // variant wasn't skipped
+        let case = match variant.style {
+            Style::Unit => {
+                quote! {
+                    #ident::#variant_ident
+                }
+            }
+            Style::Newtype => {
+                quote! {
+                    #ident::#variant_ident(ref __field0)
+                }
+            }
+            Style::Tuple => {
+                let field_names = (0..variant.fields.len())
+                    .map(|i| Ident::new(format!("__field{}", i)));
+                quote! {
+                    #ident::#variant_ident(#(ref #field_names),*)
+                }
+            }
+            Style::Struct => {
+                let fields = variant.fields
+                    .iter()
+                    .map(|f| f.ident.clone().expect("struct variant has unnamed fields"));
+                quote! {
+                    #ident::#variant_ident { #(ref #fields),* }
+                }
+            }
+        };
+
+        let body = Match(match *item_attrs.tag() {
+            attr::EnumTag::External => {
+                serialize_externally_tagged_variant(ident,
+                                                    generics,
+                                                    variant,
+                                                    variant_index,
+                                                    item_attrs)
+            }
+            attr::EnumTag::Internal { ref tag } => {
+                serialize_internally_tagged_variant(ident,
+                                                    generics,
+                                                    variant,
+                                                    item_attrs,
+                                                    tag)
+            }
+            attr::EnumTag::Adjacent { ref tag, ref content } => {
+                serialize_adjacently_tagged_variant(ident,
+                                                    generics,
+                                                    variant,
+                                                    item_attrs,
+                                                    tag,
+                                                    content)
+            }
+            attr::EnumTag::None => serialize_untagged_variant(ident, generics, variant, item_attrs),
+        });
+
+        quote! {
+            #case => #body
+        }
+    }
+}
+
+fn serialize_externally_tagged_variant(ident: &syn::Ident,
+                                       generics: &syn::Generics,
+                                       variant: &Variant,
+                                       variant_index: usize,
+                                       item_attrs: &attr::Item)
+                                       -> Fragment {
+    let type_name = item_attrs.name().serialize_name();
+    let variant_name = variant.attrs.name().serialize_name();
+
+    match variant.style {
+        Style::Unit => {
+            quote_expr! {
+                _serde::Serializer::serialize_unit_variant(
+                    _serializer,
+                    #type_name,
+                    #variant_index,
+                    #variant_name,
+                )
+            }
+        }
+        Style::Newtype => {
+            let field = &variant.fields[0];
+            let mut field_expr = quote!(__field0);
+            if let Some(path) = field.attrs.serialize_with() {
+                field_expr = wrap_serialize_with(ident, generics, field.ty, path, field_expr);
+            }
+
+            quote_expr! {
+                _serde::Serializer::serialize_newtype_variant(
+                    _serializer,
+                    #type_name,
+                    #variant_index,
+                    #variant_name,
+                    #field_expr,
+                )
+            }
+        }
+        Style::Tuple => {
+            serialize_tuple_variant(TupleVariant::ExternallyTagged {
+                                        type_name: type_name,
+                                        variant_index: variant_index,
+                                        variant_name: variant_name,
+                                    },
+                                    ident,
+                                    generics,
+                                    &variant.fields)
+        }
+        Style::Struct => {
+            serialize_struct_variant(StructVariant::ExternallyTagged {
+                                         variant_index: variant_index,
+                                         variant_name: variant_name,
+                                     },
+                                     ident,
+                                     generics,
+                                     &variant.fields,
+                                     &type_name)
+        }
+    }
+}
+
+fn serialize_internally_tagged_variant(ident: &syn::Ident,
+                                       generics: &syn::Generics,
+                                       variant: &Variant,
+                                       item_attrs: &attr::Item,
+                                       tag: &str)
+                                       -> Fragment {
+    let type_name = item_attrs.name().serialize_name();
+    let variant_name = variant.attrs.name().serialize_name();
+
+    let enum_ident_str = ident.as_ref();
+    let variant_ident_str = variant.ident.as_ref();
+
+    match variant.style {
+        Style::Unit => {
+            quote_block! {
+                let mut __struct = try!(_serde::Serializer::serialize_struct(
+                    _serializer, #type_name, 1));
+                try!(_serde::ser::SerializeStruct::serialize_field(
+                    &mut __struct, #tag, #variant_name));
+                _serde::ser::SerializeStruct::end(__struct)
+            }
+        }
+        Style::Newtype => {
+            let field = &variant.fields[0];
+            let mut field_expr = quote!(__field0);
+            if let Some(path) = field.attrs.serialize_with() {
+                field_expr = wrap_serialize_with(ident, generics, field.ty, path, field_expr);
+            }
+
+            quote_expr! {
+                _serde::ser::private::serialize_tagged_newtype(
+                    _serializer,
+                    #enum_ident_str,
+                    #variant_ident_str,
+                    #tag,
+                    #variant_name,
+                    #field_expr,
+                )
+            }
+        }
+        Style::Struct => {
+            serialize_struct_variant(StructVariant::InternallyTagged {
+                                         tag: tag,
+                                         variant_name: variant_name,
+                                     },
+                                     ident,
+                                     generics,
+                                     &variant.fields,
+                                     &type_name)
+        }
+        Style::Tuple => unreachable!("checked in serde_codegen_internals"),
+    }
+}
+
+fn serialize_adjacently_tagged_variant(ident: &syn::Ident,
+                                       generics: &syn::Generics,
+                                       variant: &Variant,
+                                       item_attrs: &attr::Item,
+                                       tag: &str,
+                                       content: &str)
+                                       -> Fragment {
+    let type_name = item_attrs.name().serialize_name();
+    let variant_name = variant.attrs.name().serialize_name();
+
+    let inner = Stmts(match variant.style {
+        Style::Unit => {
+            return quote_block! {
+                let mut __struct = try!(_serde::Serializer::serialize_struct(
+                    _serializer, #type_name, 1));
+                try!(_serde::ser::SerializeStruct::serialize_field(
+                    &mut __struct, #tag, #variant_name));
+                _serde::ser::SerializeStruct::end(__struct)
+            };
+        }
+        Style::Newtype => {
+            let field = &variant.fields[0];
+            let mut field_expr = quote!(__field0);
+            if let Some(path) = field.attrs.serialize_with() {
+                field_expr = wrap_serialize_with(ident, generics, field.ty, path, field_expr);
+            }
+
+            quote_expr! {
+                _serde::Serialize::serialize(#field_expr, _serializer)
+            }
+        }
+        Style::Tuple => {
+            serialize_tuple_variant(TupleVariant::Untagged,
+                                    ident,
+                                    generics,
+                                    &variant.fields)
+        }
+        Style::Struct => {
+            serialize_struct_variant(StructVariant::Untagged,
+                                     ident,
+                                     generics,
+                                     &variant.fields,
+                                     &variant_name)
+        }
+    });
+
+    let fields_ty = variant.fields.iter().map(|f| &f.ty);
+    let ref fields_ident: Vec<_> = match variant.style {
+        Style::Unit => unreachable!(),
+        Style::Newtype => vec![Ident::new("__field0")],
+        Style::Tuple => {
+            (0..variant.fields.len())
+                .map(|i| Ident::new(format!("__field{}", i)))
+                .collect()
+        }
+        Style::Struct => {
+            variant.fields
+                .iter()
+                .map(|f| f.ident.clone().expect("struct variant has unnamed fields"))
+                .collect()
+        }
+    };
+
+    let (_, ty_generics, where_clause) = generics.split_for_impl();
+
+    let wrapper_generics = bound::with_lifetime_bound(generics, "'__a");
+    let (wrapper_impl_generics, wrapper_ty_generics, _) = wrapper_generics.split_for_impl();
+
+    quote_block! {
+        struct __AdjacentlyTagged #wrapper_generics #where_clause {
+            data: (#(&'__a #fields_ty,)*),
+            phantom: _serde::export::PhantomData<#ident #ty_generics>,
+        }
+
+        impl #wrapper_impl_generics _serde::Serialize for __AdjacentlyTagged #wrapper_ty_generics #where_clause {
+            fn serialize<__S>(&self, _serializer: __S) -> _serde::export::Result<__S::Ok, __S::Error>
+                where __S: _serde::Serializer
+            {
+                let (#(#fields_ident,)*) = self.data;
+                #inner
+            }
+        }
+
+        let mut __struct = try!(_serde::Serializer::serialize_struct(
+            _serializer, #type_name, 2));
+        try!(_serde::ser::SerializeStruct::serialize_field(
+            &mut __struct, #tag, #variant_name));
+        try!(_serde::ser::SerializeStruct::serialize_field(
+            &mut __struct, #content, &__AdjacentlyTagged {
+                data: (#(#fields_ident,)*),
+                phantom: _serde::export::PhantomData::<#ident #ty_generics>,
+            }));
+        _serde::ser::SerializeStruct::end(__struct)
+    }
+}
+
+fn serialize_untagged_variant(ident: &syn::Ident,
+                              generics: &syn::Generics,
+                              variant: &Variant,
+                              item_attrs: &attr::Item)
+                              -> Fragment {
+    match variant.style {
+        Style::Unit => {
+            quote_expr! {
+                _serde::Serializer::serialize_unit(_serializer)
+            }
+        }
+        Style::Newtype => {
+            let field = &variant.fields[0];
+            let mut field_expr = quote!(__field0);
+            if let Some(path) = field.attrs.serialize_with() {
+                field_expr = wrap_serialize_with(ident, generics, field.ty, path, field_expr);
+            }
+
+            quote_expr! {
+                _serde::Serialize::serialize(#field_expr, _serializer)
+            }
+        }
+        Style::Tuple => {
+            serialize_tuple_variant(TupleVariant::Untagged, ident, generics, &variant.fields)
+        }
+        Style::Struct => {
+            let type_name = item_attrs.name().serialize_name();
+            serialize_struct_variant(StructVariant::Untagged,
+                                     ident,
+                                     generics,
+                                     &variant.fields,
+                                     &type_name)
+        }
+    }
+}
+
+enum TupleVariant {
+    ExternallyTagged {
+        type_name: String,
+        variant_index: usize,
+        variant_name: String,
+    },
+    Untagged,
+}
+
+fn serialize_tuple_variant(context: TupleVariant,
+                           ident: &syn::Ident,
+                           generics: &syn::Generics,
+                           fields: &[Field])
+                           -> Fragment {
+    let method = match context {
+        TupleVariant::ExternallyTagged { .. } => {
+            quote!(_serde::ser::SerializeTupleVariant::serialize_field)
+        }
+        TupleVariant::Untagged => quote!(_serde::ser::SerializeTuple::serialize_element),
+    };
+
+    let serialize_stmts =
+        serialize_tuple_struct_visitor(ident, fields, generics, true, method);
+
+    let len = serialize_stmts.len();
+    let let_mut = mut_if(len > 0);
+
+    match context {
+        TupleVariant::ExternallyTagged { type_name, variant_index, variant_name } => {
+            quote_block! {
+                let #let_mut __serde_state = try!(_serde::Serializer::serialize_tuple_variant(
+                    _serializer,
+                    #type_name,
+                    #variant_index,
+                    #variant_name,
+                    #len));
+                #(#serialize_stmts)*
+                _serde::ser::SerializeTupleVariant::end(__serde_state)
+            }
+        }
+        TupleVariant::Untagged => {
+            quote_block! {
+                let #let_mut __serde_state = try!(_serde::Serializer::serialize_tuple(
+                    _serializer,
+                    #len));
+                #(#serialize_stmts)*
+                _serde::ser::SerializeTuple::end(__serde_state)
+            }
+        }
+    }
+}
+
+enum StructVariant<'a> {
+    ExternallyTagged {
+        variant_index: usize,
+        variant_name: String,
+    },
+    InternallyTagged { tag: &'a str, variant_name: String },
+    Untagged,
+}
+
+fn serialize_struct_variant<'a>(context: StructVariant<'a>,
+                                ident: &syn::Ident,
+                                generics: &syn::Generics,
+                                fields: &[Field],
+                                name: &str)
+                                -> Fragment {
+    let method = match context {
+        StructVariant::ExternallyTagged { .. } => {
+            quote!(_serde::ser::SerializeStructVariant::serialize_field)
+        }
+        StructVariant::InternallyTagged { .. } |
+        StructVariant::Untagged => quote!(_serde::ser::SerializeStruct::serialize_field),
+    };
+
+    let serialize_fields = serialize_struct_visitor(ident, fields, generics, true, method);
+
+    let mut serialized_fields = fields.iter()
+        .filter(|&field| !field.attrs.skip_serializing())
+        .peekable();
+
+    let let_mut = mut_if(serialized_fields.peek().is_some());
+
+    let len = serialized_fields.map(|field| {
+            let ident = field.ident.clone().expect("struct has unnamed fields");
+
+            match field.attrs.skip_serializing_if() {
+                Some(path) => quote!(if #path(#ident) { 0 } else { 1 }),
+                None => quote!(1),
+            }
+        })
+        .fold(quote!(0), |sum, expr| quote!(#sum + #expr));
+
+    match context {
+        StructVariant::ExternallyTagged { variant_index, variant_name } => {
+            quote_block! {
+                let #let_mut __serde_state = try!(_serde::Serializer::serialize_struct_variant(
+                    _serializer,
+                    #name,
+                    #variant_index,
+                    #variant_name,
+                    #len,
+                ));
+                #(#serialize_fields)*
+                _serde::ser::SerializeStructVariant::end(__serde_state)
+            }
+        }
+        StructVariant::InternallyTagged { tag, variant_name } => {
+            quote_block! {
+                let mut __serde_state = try!(_serde::Serializer::serialize_struct(
+                    _serializer,
+                    #name,
+                    #len + 1,
+                ));
+                try!(_serde::ser::SerializeStruct::serialize_field(
+                    &mut __serde_state,
+                    #tag,
+                    #variant_name,
+                ));
+                #(#serialize_fields)*
+                _serde::ser::SerializeStruct::end(__serde_state)
+            }
+        }
+        StructVariant::Untagged => {
+            quote_block! {
+                let #let_mut __serde_state = try!(_serde::Serializer::serialize_struct(
+                    _serializer,
+                    #name,
+                    #len,
+                ));
+                #(#serialize_fields)*
+                _serde::ser::SerializeStruct::end(__serde_state)
+            }
+        }
+    }
+}
+
+fn serialize_tuple_struct_visitor(ident: &syn::Ident,
+                                  fields: &[Field],
+                                  generics: &syn::Generics,
+                                  is_enum: bool,
+                                  func: Tokens)
+                                  -> Vec<Tokens> {
+    fields.iter()
+        .enumerate()
+        .map(|(i, field)| {
+            let mut field_expr = if is_enum {
+                let id = Ident::new(format!("__field{}", i));
+                quote!(#id)
+            } else {
+                let i = Ident::new(i);
+                quote!(&self.#i)
+            };
+
+            let skip = field.attrs
+                .skip_serializing_if()
+                .map(|path| quote!(#path(#field_expr)));
+
+            if let Some(path) = field.attrs.serialize_with() {
+                field_expr =
+                    wrap_serialize_with(ident, generics, field.ty, path, field_expr);
+            }
+
+            let ser = quote! {
+                try!(#func(&mut __serde_state, #field_expr));
+            };
+
+            match skip {
+                None => ser,
+                Some(skip) => quote!(if !#skip { #ser }),
+            }
+        })
+        .collect()
+}
+
+fn serialize_struct_visitor(ident: &syn::Ident,
+                            fields: &[Field],
+                            generics: &syn::Generics,
+                            is_enum: bool,
+                            func: Tokens)
+                            -> Vec<Tokens> {
+    fields.iter()
+        .filter(|&field| !field.attrs.skip_serializing())
+        .map(|field| {
+            let field_ident = field.ident.clone().expect("struct has unnamed field");
+            let mut field_expr = if is_enum {
+                quote!(#field_ident)
+            } else {
+                quote!(&self.#field_ident)
+            };
+
+            let key_expr = field.attrs.name().serialize_name();
+
+            let skip = field.attrs
+                .skip_serializing_if()
+                .map(|path| quote!(#path(#field_expr)));
+
+            if let Some(path) = field.attrs.serialize_with() {
+                field_expr =
+                    wrap_serialize_with(ident, generics, field.ty, path, field_expr)
+            }
+
+            let ser = quote! {
+                try!(#func(&mut __serde_state, #key_expr, #field_expr));
+            };
+
+            match skip {
+                None => ser,
+                Some(skip) => quote!(if !#skip { #ser }),
+            }
+        })
+        .collect()
+}
+
+fn wrap_serialize_with(ident: &syn::Ident,
+                       generics: &syn::Generics,
+                       field_ty: &syn::Ty,
+                       serialize_with: &syn::Path,
+                       value: Tokens)
+                       -> Tokens {
+    let (_, ty_generics, where_clause) = generics.split_for_impl();
+
+    let wrapper_generics = bound::with_lifetime_bound(generics, "'__a");
+    let (wrapper_impl_generics, wrapper_ty_generics, _) = wrapper_generics.split_for_impl();
+
+    quote!({
+        struct __SerializeWith #wrapper_impl_generics #where_clause {
+            value: &'__a #field_ty,
+            phantom: _serde::export::PhantomData<#ident #ty_generics>,
+        }
+
+        impl #wrapper_impl_generics _serde::Serialize for __SerializeWith #wrapper_ty_generics #where_clause {
+            fn serialize<__S>(&self, __s: __S) -> _serde::export::Result<__S::Ok, __S::Error>
+                where __S: _serde::Serializer
+            {
+                #serialize_with(self.value, __s)
+            }
+        }
+
+        &__SerializeWith {
+            value: #value,
+            phantom: _serde::export::PhantomData::<#ident #ty_generics>,
+        }
+    })
+}
+
+// Serialization of an empty struct results in code like:
+//
+//     let mut __serde_state = try!(serializer.serialize_struct("S", 0));
+//     _serde::ser::SerializeStruct::end(__serde_state)
+//
+// where we want to omit the `mut` to avoid a warning.
+fn mut_if(is_mut: bool) -> Option<Tokens> {
+    if is_mut { Some(quote!(mut)) } else { None }
+}

serde_macros/.gitignore

@@ -1,2 +0,0 @@
-/target
-/Cargo.lock

serde_macros/Cargo.toml

@@ -1,34 +0,0 @@
-[package]
-name = "serde_macros"
-version = "0.7.6"
-authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
-license = "MIT/Apache-2.0"
-description = "Macros to auto-generate implementations for the serde framework"
-repository = "https://github.com/serde-rs/serde"
-documentation = "https://github.com/serde-rs/serde"
-keywords = ["serde", "serialization"]
-include = ["Cargo.toml", "src/**/*.rs"]
-
-[lib]
-name = "serde_macros"
-plugin = true
-
-[features]
-nightly-testing = ["clippy", "serde/nightly-testing", "serde_codegen/nightly-testing"]
-
-[dependencies]
-clippy = { version = "^0.*", optional = true }
-serde_codegen = { version = "^0.7.6", path = "../serde_codegen", default-features = false, features = ["nightly"] }
-
-[dev-dependencies]
-compiletest_rs = "^0.1.1"
-rustc-serialize = "^0.3.16"
-serde = { version = "^0.7.6", path = "../serde" }
-
-[[test]]
-name = "test"
-path = "tests/test.rs"
-
-[[bench]]
-name = "bench"
-path = "benches/bench.rs"

serde_macros/benches/bench.rs

@@ -1,9 +0,0 @@
-#![feature(custom_attribute, custom_derive, plugin, test)]
-#![cfg_attr(feature = "clippy", plugin(clippy))]
-#![plugin(serde_macros)]
-
-extern crate rustc_serialize;
-extern crate serde;
-extern crate test;
-
-include!("../../serde_tests/benches/bench.rs.in");

serde_macros/src/lib.rs

@@ -1,12 +0,0 @@
-#![feature(plugin_registrar, rustc_private)]
-#![cfg_attr(feature = "clippy", feature(plugin))]
-#![cfg_attr(feature = "clippy", plugin(clippy))]
-
-extern crate serde_codegen;
-extern crate rustc_plugin;
-
-#[plugin_registrar]
-#[doc(hidden)]
-pub fn plugin_registrar(reg: &mut rustc_plugin::Registry) {
-    serde_codegen::register(reg);
-}

serde_macros/tests/compile-fail/reject-unknown-attributes.rs

@@ -1,30 +0,0 @@
-#![feature(custom_attribute, custom_derive, plugin)]
-#![plugin(serde_macros)]
-
-extern crate serde;
-
-#[derive(Serialize)]
-#[serde(abc="xyz")] //~ unknown serde container attribute `abc = "xyz"`
-struct Foo {
-    x: u32,
-}
-
-#[derive(Deserialize)]
-#[serde(abc="xyz")] //~ unknown serde container attribute `abc = "xyz"`
-struct Foo {
-    x: u32,
-}
-
-#[derive(Serialize)]
-struct Foo {
-    #[serde(abc="xyz")] //~ unknown serde field attribute `abc = "xyz"`
-    x: u32,
-}
-
-#[derive(Deserialize)]
-struct Foo {
-    #[serde(abc="xyz")] //~ unknown serde field attribute `abc = "xyz"`
-    x: u32,
-}
-
-fn main() { }

serde_macros/tests/compile_tests.rs

@@ -1,25 +0,0 @@
-extern crate compiletest_rs as compiletest;
-
-use std::path::PathBuf;
-use std::env::var;
-
-fn run_mode(mode: &'static str) {
-    let mut config = compiletest::default_config();
-
-    let cfg_mode = mode.parse().ok().expect("Invalid mode");
-
-    config.target_rustcflags = Some("-L target/debug/ -L target/debug/deps/".to_owned());
-    if let Ok(name) = var::<&str>("TESTNAME") {
-        let s : String = name.to_owned();
-        config.filter = Some(s)
-    }
-    config.mode = cfg_mode;
-    config.src_base = PathBuf::from(format!("tests/{}", mode));
-
-    compiletest::run_tests(&config);
-}
-
-#[test]
-fn compile_test() {
-    run_mode("compile-fail");
-}

serde_macros/tests/test.rs

@@ -1,9 +0,0 @@
-#![feature(test, custom_attribute, custom_derive, plugin)]
-#![plugin(serde_macros)]
-
-extern crate serde;
-extern crate test;
-
-include!("../../serde_tests/tests/test.rs.in");
-
-mod compile_tests;

serde_test/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "serde_test"
+version = "0.9.10"
+authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
+license = "MIT/Apache-2.0"
+description = "Token De/Serializer for testing De/Serialize implementations"
+homepage = "https://serde.rs"
+repository = "https://github.com/serde-rs/serde"
+documentation = "https://docs.serde.rs/serde_test/"
+keywords = ["serde", "serialization"]
+readme = "../README.md"
+include = ["Cargo.toml", "src/**/*.rs", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
+
+[dependencies]
+serde = { version = "0.9", path = "../serde" }
+
+[badges]
+travis-ci = { repository = "serde-rs/serde" }

serde_test/LICENSE-APACHE

@@ -0,0 +1 @@
+../LICENSE-APACHE

serde_test/LICENSE-MIT

@@ -0,0 +1 @@
+../LICENSE-MIT

serde_test/README.md

@@ -0,0 +1 @@
+../README.md

serde_test/src/assert.rs

@@ -0,0 +1,54 @@
+use serde::{Serialize, Deserialize};
+
+use de::Deserializer;
+use error::Error;
+use ser::Serializer;
+use token::Token;
+
+use std::fmt::Debug;
+
+pub fn assert_tokens<T>(value: &T, tokens: &[Token<'static>])
+    where T: Serialize + Deserialize + PartialEq + Debug
+{
+    assert_ser_tokens(value, tokens);
+    assert_de_tokens(value, tokens);
+}
+
+pub fn assert_ser_tokens<T>(value: &T, tokens: &[Token])
+    where T: Serialize
+{
+    let mut ser = Serializer::new(tokens.iter());
+    assert_eq!(Serialize::serialize(value, &mut ser), Ok(()));
+    assert_eq!(ser.next_token(), None);
+}
+
+/// Expect an error serializing `T`.
+pub fn assert_ser_tokens_error<T>(value: &T, tokens: &[Token], error: Error)
+    where T: Serialize + PartialEq + Debug
+{
+    let mut ser = Serializer::new(tokens.iter());
+    let v: Result<(), Error> = Serialize::serialize(value, &mut ser);
+    assert_eq!(v.as_ref(), Err(&error));
+    assert_eq!(ser.next_token(), None);
+}
+
+pub fn assert_de_tokens<T>(value: &T, tokens: &[Token<'static>])
+    where T: Deserialize + PartialEq + Debug
+{
+    let mut de = Deserializer::new(tokens.to_vec().into_iter());
+    let v: Result<T, Error> = Deserialize::deserialize(&mut de);
+    assert_eq!(v.as_ref(), Ok(value));
+    assert_eq!(de.next_token(), None);
+}
+
+/// Expect an error deserializing tokens into a `T`.
+pub fn assert_de_tokens_error<T>(tokens: &[Token<'static>], error: Error)
+    where T: Deserialize + PartialEq + Debug
+{
+    let mut de = Deserializer::new(tokens.to_vec().into_iter());
+    let v: Result<T, Error> = Deserialize::deserialize(&mut de);
+    assert_eq!(v, Err(error));
+    // There may be one token left if a peek caused the error
+    de.next_token();
+    assert_eq!(de.next_token(), None);
+}

serde_test/src/de.rs

@@ -0,0 +1,619 @@
+use std::iter;
+
+use serde::de::{self, Deserialize, DeserializeSeed, EnumVisitor, MapVisitor, SeqVisitor,
+                VariantVisitor, Visitor};
+use serde::de::value::{ValueDeserializer, MapVisitorDeserializer, SeqVisitorDeserializer};
+
+use error::Error;
+use token::Token;
+
+pub struct Deserializer<I>
+    where I: Iterator<Item = Token<'static>>
+{
+    tokens: iter::Peekable<I>,
+}
+
+impl<I> Deserializer<I>
+    where I: Iterator<Item = Token<'static>>
+{
+    pub fn new(tokens: I) -> Deserializer<I> {
+        Deserializer { tokens: tokens.peekable() }
+    }
+
+    pub fn next_token(&mut self) -> Option<Token<'static>> {
+        self.tokens.next()
+    }
+
+    pub fn expect_token(&mut self, expected: Token) -> Result<(), Error> {
+        match self.tokens.next() {
+            Some(token) => {
+                if expected == token {
+                    Ok(())
+                } else {
+                    Err(Error::UnexpectedToken(token))
+                }
+            }
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn visit_seq<V>(&mut self,
+                    len: Option<usize>,
+                    sep: Token<'static>,
+                    end: Token<'static>,
+                    visitor: V)
+                    -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        let value = try!(visitor.visit_seq(DeserializerSeqVisitor {
+            de: self,
+            len: len,
+            sep: sep,
+            end: end.clone(),
+        }));
+        try!(self.expect_token(end));
+        Ok(value)
+    }
+
+    fn visit_map<V>(&mut self,
+                    len: Option<usize>,
+                    sep: Token<'static>,
+                    end: Token<'static>,
+                    visitor: V)
+                    -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        let value = try!(visitor.visit_map(DeserializerMapVisitor {
+            de: self,
+            len: len,
+            sep: sep,
+            end: end.clone(),
+        }));
+        try!(self.expect_token(end));
+        Ok(value)
+    }
+}
+
+impl<'a, I> de::Deserializer for &'a mut Deserializer<I>
+    where I: Iterator<Item = Token<'static>>
+{
+    type Error = Error;
+
+    forward_to_deserialize! {
+        bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string unit
+        seq bytes byte_buf map struct_field ignored_any
+    }
+
+    fn deserialize<V>(self, visitor: V) -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.tokens.next() {
+            Some(Token::Bool(v)) => visitor.visit_bool(v),
+            Some(Token::I8(v)) => visitor.visit_i8(v),
+            Some(Token::I16(v)) => visitor.visit_i16(v),
+            Some(Token::I32(v)) => visitor.visit_i32(v),
+            Some(Token::I64(v)) => visitor.visit_i64(v),
+            Some(Token::U8(v)) => visitor.visit_u8(v),
+            Some(Token::U16(v)) => visitor.visit_u16(v),
+            Some(Token::U32(v)) => visitor.visit_u32(v),
+            Some(Token::U64(v)) => visitor.visit_u64(v),
+            Some(Token::F32(v)) => visitor.visit_f32(v),
+            Some(Token::F64(v)) => visitor.visit_f64(v),
+            Some(Token::Char(v)) => visitor.visit_char(v),
+            Some(Token::Str(v)) => visitor.visit_str(v),
+            Some(Token::String(v)) => visitor.visit_string(v),
+            Some(Token::Bytes(v)) => visitor.visit_bytes(v),
+            Some(Token::ByteBuf(v)) => visitor.visit_byte_buf(v),
+            Some(Token::Option(false)) => visitor.visit_none(),
+            Some(Token::Option(true)) => visitor.visit_some(self),
+            Some(Token::Unit) => visitor.visit_unit(),
+            Some(Token::UnitStruct(_name)) => visitor.visit_unit(),
+            Some(Token::SeqStart(len)) => {
+                self.visit_seq(len, Token::SeqSep, Token::SeqEnd, visitor)
+            }
+            Some(Token::SeqArrayStart(len)) => {
+                self.visit_seq(Some(len), Token::SeqSep, Token::SeqEnd, visitor)
+            }
+            Some(Token::TupleStart(len)) => {
+                self.visit_seq(Some(len), Token::TupleSep, Token::TupleEnd, visitor)
+            }
+            Some(Token::TupleStructStart(_, len)) => {
+                self.visit_seq(Some(len),
+                               Token::TupleStructSep,
+                               Token::TupleStructEnd,
+                               visitor)
+            }
+            Some(Token::MapStart(len)) => {
+                self.visit_map(len, Token::MapSep, Token::MapEnd, visitor)
+            }
+            Some(Token::StructStart(_, len)) => {
+                self.visit_map(Some(len), Token::StructSep, Token::StructEnd, visitor)
+            }
+            Some(Token::EnumUnit(_, variant)) => visitor.visit_str(variant),
+            Some(Token::EnumStart(variant)) |
+            Some(Token::EnumNewType(_, variant)) |
+            Some(Token::EnumSeqStart(_, variant, _)) |
+            Some(Token::EnumMapStart(_, variant, _)) => {
+                visitor.visit_map(EnumMapVisitor::new(self, variant))
+            }
+            Some(token) => Err(Error::UnexpectedToken(token)),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    /// Hook into `Option` deserializing so we can treat `Unit` as a
+    /// `None`, or a regular value as `Some(value)`.
+    fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.tokens.peek() {
+            Some(&Token::Unit) |
+            Some(&Token::Option(false)) => {
+                self.tokens.next();
+                visitor.visit_none()
+            }
+            Some(&Token::Option(true)) => {
+                self.tokens.next();
+                visitor.visit_some(self)
+            }
+            Some(_) => visitor.visit_some(self),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn deserialize_enum<V>(self,
+                           name: &str,
+                           _variants: &'static [&'static str],
+                           visitor: V)
+                           -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.tokens.peek() {
+            Some(&Token::EnumStart(n)) if name == n => {
+                self.tokens.next();
+
+                visitor.visit_enum(DeserializerEnumVisitor { de: self })
+            }
+            Some(&Token::EnumUnit(n, _)) |
+            Some(&Token::EnumNewType(n, _)) |
+            Some(&Token::EnumSeqStart(n, _, _)) |
+            Some(&Token::EnumMapStart(n, _, _)) if name == n => {
+                visitor.visit_enum(DeserializerEnumVisitor { de: self })
+            }
+            Some(_) => {
+                let token = self.tokens.next().unwrap();
+                Err(Error::UnexpectedToken(token))
+            }
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn deserialize_unit_struct<V>(self, name: &str, visitor: V) -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.tokens.peek() {
+            Some(&Token::UnitStruct(n)) => {
+                self.tokens.next();
+                if name == n {
+                    visitor.visit_unit()
+                } else {
+                    Err(Error::InvalidName(n))
+                }
+            }
+            Some(_) => self.deserialize(visitor),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn deserialize_newtype_struct<V>(self, name: &str, visitor: V) -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.tokens.peek() {
+            Some(&Token::StructNewType(n)) => {
+                self.tokens.next();
+                if name == n {
+                    visitor.visit_newtype_struct(self)
+                } else {
+                    Err(Error::InvalidName(n))
+                }
+            }
+            Some(_) => self.deserialize(visitor),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn deserialize_seq_fixed_size<V>(self, len: usize, visitor: V) -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.tokens.peek() {
+            Some(&Token::SeqArrayStart(_)) => {
+                self.tokens.next();
+                self.visit_seq(Some(len), Token::SeqSep, Token::SeqEnd, visitor)
+            }
+            Some(_) => self.deserialize(visitor),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.tokens.peek() {
+            Some(&Token::Unit) |
+            Some(&Token::UnitStruct(_)) => {
+                self.tokens.next();
+                visitor.visit_unit()
+            }
+            Some(&Token::SeqStart(_)) => {
+                self.tokens.next();
+                self.visit_seq(Some(len), Token::SeqSep, Token::SeqEnd, visitor)
+            }
+            Some(&Token::SeqArrayStart(_)) => {
+                self.tokens.next();
+                self.visit_seq(Some(len), Token::SeqSep, Token::SeqEnd, visitor)
+            }
+            Some(&Token::TupleStart(_)) => {
+                self.tokens.next();
+                self.visit_seq(Some(len), Token::TupleSep, Token::TupleEnd, visitor)
+            }
+            Some(&Token::TupleStructStart(_, _)) => {
+                self.tokens.next();
+                self.visit_seq(Some(len),
+                               Token::TupleStructSep,
+                               Token::TupleStructEnd,
+                               visitor)
+            }
+            Some(_) => self.deserialize(visitor),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn deserialize_tuple_struct<V>(self,
+                                   name: &str,
+                                   len: usize,
+                                   visitor: V)
+                                   -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.tokens.peek() {
+            Some(&Token::Unit) => {
+                self.tokens.next();
+                visitor.visit_unit()
+            }
+            Some(&Token::UnitStruct(n)) => {
+                self.tokens.next();
+                if name == n {
+                    visitor.visit_unit()
+                } else {
+                    Err(Error::InvalidName(n))
+                }
+            }
+            Some(&Token::SeqStart(_)) => {
+                self.tokens.next();
+                self.visit_seq(Some(len), Token::SeqSep, Token::SeqEnd, visitor)
+            }
+            Some(&Token::SeqArrayStart(_)) => {
+                self.tokens.next();
+                self.visit_seq(Some(len), Token::SeqSep, Token::SeqEnd, visitor)
+            }
+            Some(&Token::TupleStart(_)) => {
+                self.tokens.next();
+                self.visit_seq(Some(len), Token::TupleSep, Token::TupleEnd, visitor)
+            }
+            Some(&Token::TupleStructStart(n, _)) => {
+                self.tokens.next();
+                if name == n {
+                    self.visit_seq(Some(len),
+                                   Token::TupleStructSep,
+                                   Token::TupleStructEnd,
+                                   visitor)
+                } else {
+                    Err(Error::InvalidName(n))
+                }
+            }
+            Some(_) => self.deserialize(visitor),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn deserialize_struct<V>(self,
+                             name: &str,
+                             fields: &'static [&'static str],
+                             visitor: V)
+                             -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.tokens.peek() {
+            Some(&Token::StructStart(n, _)) => {
+                self.tokens.next();
+                if name == n {
+                    self.visit_map(Some(fields.len()),
+                                   Token::StructSep,
+                                   Token::StructEnd,
+                                   visitor)
+                } else {
+                    Err(Error::InvalidName(n))
+                }
+            }
+            Some(&Token::MapStart(_)) => {
+                self.tokens.next();
+                self.visit_map(Some(fields.len()), Token::MapSep, Token::MapEnd, visitor)
+            }
+            Some(_) => self.deserialize(visitor),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////
+
+struct DeserializerSeqVisitor<'a, I: 'a>
+    where I: Iterator<Item = Token<'static>>
+{
+    de: &'a mut Deserializer<I>,
+    len: Option<usize>,
+    sep: Token<'static>,
+    end: Token<'static>,
+}
+
+impl<'a, I> SeqVisitor for DeserializerSeqVisitor<'a, I>
+    where I: Iterator<Item = Token<'static>>
+{
+    type Error = Error;
+
+    fn visit_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, Error>
+        where T: DeserializeSeed
+    {
+        if self.de.tokens.peek() == Some(&self.end) {
+            return Ok(None);
+        }
+        match self.de.tokens.next() {
+            Some(ref token) if *token == self.sep => {
+                self.len = self.len.map(|len| len.saturating_sub(1));
+                seed.deserialize(&mut *self.de).map(Some)
+            }
+            Some(other) => Err(Error::UnexpectedToken(other)),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn size_hint(&self) -> (usize, Option<usize>) {
+        let len = self.len.unwrap_or(0);
+        (len, self.len)
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////
+
+struct DeserializerMapVisitor<'a, I: 'a>
+    where I: Iterator<Item = Token<'static>>
+{
+    de: &'a mut Deserializer<I>,
+    len: Option<usize>,
+    sep: Token<'static>,
+    end: Token<'static>,
+}
+
+impl<'a, I> MapVisitor for DeserializerMapVisitor<'a, I>
+    where I: Iterator<Item = Token<'static>>
+{
+    type Error = Error;
+
+    fn visit_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>, Error>
+        where K: DeserializeSeed
+    {
+        if self.de.tokens.peek() == Some(&self.end) {
+            return Ok(None);
+        }
+        match self.de.tokens.next() {
+            Some(ref token) if *token == self.sep => {
+                self.len = self.len.map(|len| len.saturating_sub(1));
+                seed.deserialize(&mut *self.de).map(Some)
+            }
+            Some(other) => Err(Error::UnexpectedToken(other)),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn visit_value_seed<V>(&mut self, seed: V) -> Result<V::Value, Error>
+        where V: DeserializeSeed
+    {
+        seed.deserialize(&mut *self.de)
+    }
+
+    fn size_hint(&self) -> (usize, Option<usize>) {
+        let len = self.len.unwrap_or(0);
+        (len, self.len)
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////
+
+struct DeserializerEnumVisitor<'a, I: 'a>
+    where I: Iterator<Item = Token<'static>>
+{
+    de: &'a mut Deserializer<I>,
+}
+
+impl<'a, I> EnumVisitor for DeserializerEnumVisitor<'a, I>
+    where I: Iterator<Item = Token<'static>>
+{
+    type Error = Error;
+    type Variant = Self;
+
+    fn visit_variant_seed<V>(self, seed: V) -> Result<(V::Value, Self), Error>
+        where V: DeserializeSeed
+    {
+        match self.de.tokens.peek() {
+            Some(&Token::EnumUnit(_, v)) |
+            Some(&Token::EnumNewType(_, v)) |
+            Some(&Token::EnumSeqStart(_, v, _)) |
+            Some(&Token::EnumMapStart(_, v, _)) => {
+                let de = v.into_deserializer();
+                let value = try!(seed.deserialize(de));
+                Ok((value, self))
+            }
+            Some(_) => {
+                let value = try!(seed.deserialize(&mut *self.de));
+                Ok((value, self))
+            }
+            None => Err(Error::EndOfTokens),
+        }
+    }
+}
+
+impl<'a, I> VariantVisitor for DeserializerEnumVisitor<'a, I>
+    where I: Iterator<Item = Token<'static>>
+{
+    type Error = Error;
+
+    fn visit_unit(self) -> Result<(), Error> {
+        match self.de.tokens.peek() {
+            Some(&Token::EnumUnit(_, _)) => {
+                self.de.tokens.next();
+                Ok(())
+            }
+            Some(_) => Deserialize::deserialize(self.de),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn visit_newtype_seed<T>(self, seed: T) -> Result<T::Value, Self::Error>
+        where T: DeserializeSeed
+    {
+        match self.de.tokens.peek() {
+            Some(&Token::EnumNewType(_, _)) => {
+                self.de.tokens.next();
+                seed.deserialize(self.de)
+            }
+            Some(_) => seed.deserialize(self.de),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn visit_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.de.tokens.peek() {
+            Some(&Token::EnumSeqStart(_, _, enum_len)) => {
+                let token = self.de.tokens.next().unwrap();
+
+                if len == enum_len {
+                    self.de.visit_seq(Some(len), Token::EnumSeqSep, Token::EnumSeqEnd, visitor)
+                } else {
+                    Err(Error::UnexpectedToken(token))
+                }
+            }
+            Some(&Token::SeqStart(Some(enum_len))) => {
+                let token = self.de.tokens.next().unwrap();
+
+                if len == enum_len {
+                    self.de.visit_seq(Some(len), Token::SeqSep, Token::SeqEnd, visitor)
+                } else {
+                    Err(Error::UnexpectedToken(token))
+                }
+            }
+            Some(_) => de::Deserializer::deserialize(self.de, visitor),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+
+    fn visit_struct<V>(self, fields: &'static [&'static str], visitor: V) -> Result<V::Value, Error>
+        where V: Visitor
+    {
+        match self.de.tokens.peek() {
+            Some(&Token::EnumMapStart(_, _, enum_len)) => {
+                let token = self.de.tokens.next().unwrap();
+
+                if fields.len() == enum_len {
+                    self.de.visit_map(Some(fields.len()),
+                                      Token::EnumMapSep,
+                                      Token::EnumMapEnd,
+                                      visitor)
+                } else {
+                    Err(Error::UnexpectedToken(token))
+                }
+            }
+            Some(&Token::MapStart(Some(enum_len))) => {
+                let token = self.de.tokens.next().unwrap();
+
+                if fields.len() == enum_len {
+                    self.de.visit_map(Some(fields.len()), Token::MapSep, Token::MapEnd, visitor)
+                } else {
+                    Err(Error::UnexpectedToken(token))
+                }
+            }
+            Some(_) => de::Deserializer::deserialize(self.de, visitor),
+            None => Err(Error::EndOfTokens),
+        }
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////
+
+struct EnumMapVisitor<'a, I: 'a>
+    where I: Iterator<Item = Token<'static>>
+{
+    de: &'a mut Deserializer<I>,
+    variant: Option<&'a str>,
+}
+
+impl<'a, I: 'a> EnumMapVisitor<'a, I>
+    where I: Iterator<Item = Token<'static>>
+{
+    fn new(de: &'a mut Deserializer<I>, variant: &'a str) -> Self {
+        EnumMapVisitor {
+            de: de,
+            variant: Some(variant),
+        }
+    }
+}
+
+impl<'a, I: 'a> MapVisitor for EnumMapVisitor<'a, I>
+    where I: Iterator<Item = Token<'static>>
+{
+    type Error = Error;
+
+    fn visit_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>, Error>
+        where K: DeserializeSeed
+    {
+        match self.variant.take() {
+            Some(variant) => seed.deserialize(variant.into_deserializer()).map(Some),
+            None => Ok(None),
+        }
+    }
+
+    fn visit_value_seed<V>(&mut self, seed: V) -> Result<V::Value, Error>
+        where V: DeserializeSeed
+    {
+        match self.de.tokens.peek() {
+            Some(&Token::EnumSeqSep) => {
+                let value = {
+                    let visitor = DeserializerSeqVisitor {
+                        de: self.de,
+                        len: None,
+                        sep: Token::EnumSeqSep,
+                        end: Token::EnumSeqEnd,
+                    };
+                    try!(seed.deserialize(SeqVisitorDeserializer::new(visitor)))
+                };
+                try!(self.de.expect_token(Token::EnumSeqEnd));
+                Ok(value)
+            }
+            Some(&Token::EnumMapSep) => {
+                let value = {
+                    let visitor = DeserializerMapVisitor {
+                        de: self.de,
+                        len: None,
+                        sep: Token::EnumMapSep,
+                        end: Token::EnumMapEnd,
+                    };
+                    try!(seed.deserialize(MapVisitorDeserializer::new(visitor)))
+                };
+                try!(self.de.expect_token(Token::EnumMapEnd));
+                Ok(value)
+            }
+            _ => seed.deserialize(&mut *self.de),
+        }
+    }
+}

serde_test/src/error.rs

@@ -0,0 +1,48 @@
+use std::error;
+use std::fmt::{self, Display};
+
+use serde::{ser, de};
+
+use token::Token;
+
+#[derive(Clone, PartialEq, Debug)]
+pub enum Error {
+    Message(String),
+    InvalidName(&'static str),
+    UnexpectedToken(Token<'static>),
+    EndOfTokens,
+}
+
+impl ser::Error for Error {
+    fn custom<T: Display>(msg: T) -> Error {
+        Error::Message(msg.to_string())
+    }
+}
+
+impl de::Error for Error {
+    fn custom<T: Display>(msg: T) -> Error {
+        Error::Message(msg.to_string())
+    }
+}
+
+impl fmt::Display for Error {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        match *self {
+            Error::Message(ref msg) => formatter.write_str(msg),
+            Error::InvalidName(name) => write!(formatter, "invalid name `{}`", name),
+            Error::UnexpectedToken(_) => formatter.write_str("unexpected token"),
+            Error::EndOfTokens => formatter.write_str("end of tokens"),
+        }
+    }
+}
+
+impl error::Error for Error {
+    fn description(&self) -> &str {
+        match *self {
+            Error::Message(ref msg) => msg,
+            Error::InvalidName(_) => "invalid name",
+            Error::UnexpectedToken(_) => "unexpected token",
+            Error::EndOfTokens => "end of tokens",
+        }
+    }
+}

serde_test/src/lib.rs

@@ -0,0 +1,18 @@
+#[macro_use]
+extern crate serde;
+
+mod assert;
+pub use assert::{assert_tokens, assert_ser_tokens, assert_ser_tokens_error, assert_de_tokens,
+                 assert_de_tokens_error};
+
+mod ser;
+pub use ser::Serializer;
+
+mod de;
+pub use de::Deserializer;
+
+mod token;
+pub use token::Token;
+
+mod error;
+pub use error::Error;

serde_test/src/ser.rs

@@ -0,0 +1,363 @@
+use std::marker::PhantomData;
+
+use serde::{ser, Serialize};
+
+use error::Error;
+use token::Token;
+
+pub struct Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    tokens: I,
+    phantom: PhantomData<&'a Token<'a>>,
+}
+
+impl<'a, I> Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    pub fn new(tokens: I) -> Serializer<'a, I> {
+        Serializer {
+            tokens: tokens,
+            phantom: PhantomData,
+        }
+    }
+
+    pub fn next_token(&mut self) -> Option<&'a Token<'a>> {
+        self.tokens.next()
+    }
+}
+
+impl<'s, 'a, I> ser::Serializer for &'s mut Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    type Ok = ();
+    type Error = Error;
+
+    type SerializeSeq = Self;
+    type SerializeTuple = Self;
+    type SerializeTupleStruct = Self;
+    type SerializeTupleVariant = Self;
+    type SerializeMap = Self;
+    type SerializeStruct = Self;
+    type SerializeStructVariant = Self;
+
+    fn serialize_bool(self, v: bool) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Bool(v)));
+        Ok(())
+    }
+
+    fn serialize_i8(self, v: i8) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::I8(v)));
+        Ok(())
+    }
+
+    fn serialize_i16(self, v: i16) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::I16(v)));
+        Ok(())
+    }
+
+    fn serialize_i32(self, v: i32) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::I32(v)));
+        Ok(())
+    }
+
+    fn serialize_i64(self, v: i64) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::I64(v)));
+        Ok(())
+    }
+
+    fn serialize_u8(self, v: u8) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::U8(v)));
+        Ok(())
+    }
+
+    fn serialize_u16(self, v: u16) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::U16(v)));
+        Ok(())
+    }
+
+    fn serialize_u32(self, v: u32) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::U32(v)));
+        Ok(())
+    }
+
+    fn serialize_u64(self, v: u64) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::U64(v)));
+        Ok(())
+    }
+
+    fn serialize_f32(self, v: f32) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::F32(v)));
+        Ok(())
+    }
+
+    fn serialize_f64(self, v: f64) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::F64(v)));
+        Ok(())
+    }
+
+    fn serialize_char(self, v: char) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Char(v)));
+        Ok(())
+    }
+
+    fn serialize_str(self, v: &str) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Str(v)));
+        Ok(())
+    }
+
+    fn serialize_bytes(self, value: &[u8]) -> Result<(), Self::Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Bytes(value)));
+        Ok(())
+    }
+
+    fn serialize_unit(self) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Unit));
+        Ok(())
+    }
+
+    fn serialize_unit_struct(self, name: &str) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::UnitStruct(name)));
+        Ok(())
+    }
+
+    fn serialize_unit_variant(self,
+                              name: &str,
+                              _variant_index: usize,
+                              variant: &str)
+                              -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::EnumUnit(name, variant)));
+        Ok(())
+    }
+
+    fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<(), Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::StructNewType(name)));
+        value.serialize(self)
+    }
+
+    fn serialize_newtype_variant<T: ?Sized>(self,
+                                            name: &str,
+                                            _variant_index: usize,
+                                            variant: &str,
+                                            value: &T)
+                                            -> Result<(), Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::EnumNewType(name, variant)));
+        value.serialize(self)
+    }
+
+    fn serialize_none(self) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Option(false)));
+        Ok(())
+    }
+
+    fn serialize_some<T: ?Sized>(self, value: &T) -> Result<(), Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::Option(true)));
+        value.serialize(self)
+    }
+
+    fn serialize_seq(self, len: Option<usize>) -> Result<Self, Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::SeqStart(len)));
+        Ok(self)
+    }
+
+    fn serialize_seq_fixed_size(self, len: usize) -> Result<Self, Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::SeqArrayStart(len)));
+        Ok(self)
+    }
+
+    fn serialize_tuple(self, len: usize) -> Result<Self, Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::TupleStart(len)));
+        Ok(self)
+    }
+
+    fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self, Error> {
+        assert_eq!(self.tokens.next(),
+                   Some(&Token::TupleStructStart(name, len)));
+        Ok(self)
+    }
+
+    fn serialize_tuple_variant(self,
+                               name: &str,
+                               _variant_index: usize,
+                               variant: &str,
+                               len: usize)
+                               -> Result<Self, Error> {
+        assert_eq!(self.tokens.next(),
+                   Some(&Token::EnumSeqStart(name, variant, len)));
+        Ok(self)
+    }
+
+    fn serialize_map(self, len: Option<usize>) -> Result<Self, Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::MapStart(len)));
+        Ok(self)
+    }
+
+    fn serialize_struct(self, name: &str, len: usize) -> Result<Self, Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::StructStart(name, len)));
+        Ok(self)
+    }
+
+    fn serialize_struct_variant(self,
+                                name: &str,
+                                _variant_index: usize,
+                                variant: &str,
+                                len: usize)
+                                -> Result<Self, Error> {
+        assert_eq!(self.tokens.next(),
+                   Some(&Token::EnumMapStart(name, variant, len)));
+        Ok(self)
+    }
+}
+
+impl<'s, 'a, I> ser::SerializeSeq for &'s mut Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    type Ok = ();
+    type Error = Error;
+
+    fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::SeqSep));
+        value.serialize(&mut **self)
+    }
+
+    fn end(self) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::SeqEnd));
+        Ok(())
+    }
+}
+
+impl<'s, 'a, I> ser::SerializeTuple for &'s mut Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    type Ok = ();
+    type Error = Error;
+
+    fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::TupleSep));
+        value.serialize(&mut **self)
+    }
+
+    fn end(self) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::TupleEnd));
+        Ok(())
+    }
+}
+
+impl<'s, 'a, I> ser::SerializeTupleStruct for &'s mut Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    type Ok = ();
+    type Error = Error;
+
+    fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::TupleStructSep));
+        value.serialize(&mut **self)
+    }
+
+    fn end(self) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::TupleStructEnd));
+        Ok(())
+    }
+}
+
+impl<'s, 'a, I> ser::SerializeTupleVariant for &'s mut Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    type Ok = ();
+    type Error = Error;
+
+    fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::EnumSeqSep));
+        value.serialize(&mut **self)
+    }
+
+    fn end(self) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::EnumSeqEnd));
+        Ok(())
+    }
+}
+
+impl<'s, 'a, I> ser::SerializeMap for &'s mut Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    type Ok = ();
+    type Error = Error;
+
+    fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Self::Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::MapSep));
+        key.serialize(&mut **self)
+    }
+
+    fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error>
+        where T: Serialize
+    {
+        value.serialize(&mut **self)
+    }
+
+    fn end(self) -> Result<(), Self::Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::MapEnd));
+        Ok(())
+    }
+}
+
+impl<'s, 'a, I> ser::SerializeStruct for &'s mut Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    type Ok = ();
+    type Error = Error;
+
+    fn serialize_field<T: ?Sized>(&mut self,
+                                  key: &'static str,
+                                  value: &T)
+                                  -> Result<(), Self::Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::StructSep));
+        try!(key.serialize(&mut **self));
+        value.serialize(&mut **self)
+    }
+
+    fn end(self) -> Result<(), Self::Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::StructEnd));
+        Ok(())
+    }
+}
+
+impl<'s, 'a, I> ser::SerializeStructVariant for &'s mut Serializer<'a, I>
+    where I: Iterator<Item = &'a Token<'a>>
+{
+    type Ok = ();
+    type Error = Error;
+
+    fn serialize_field<T: ?Sized>(&mut self,
+                                  key: &'static str,
+                                  value: &T)
+                                  -> Result<(), Self::Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::EnumMapSep));
+        try!(key.serialize(&mut **self));
+        value.serialize(&mut **self)
+    }
+
+    fn end(self) -> Result<(), Self::Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::EnumMapEnd));
+        Ok(())
+    }
+}

serde_test/src/token.rs

@@ -0,0 +1,59 @@
+#[derive(Clone, PartialEq, Debug)]
+pub enum Token<'a> {
+    Bool(bool),
+    I8(i8),
+    I16(i16),
+    I32(i32),
+    I64(i64),
+    U8(u8),
+    U16(u16),
+    U32(u32),
+    U64(u64),
+    F32(f32),
+    F64(f64),
+    Char(char),
+    Str(&'a str),
+    String(String),
+    Bytes(&'a [u8]),
+    ByteBuf(Vec<u8>),
+
+    Option(bool),
+
+    Unit,
+    UnitStruct(&'a str),
+
+    StructNewType(&'a str),
+
+    EnumStart(&'a str),
+    EnumUnit(&'a str, &'a str),
+    EnumNewType(&'a str, &'a str),
+
+    SeqStart(Option<usize>),
+    SeqArrayStart(usize),
+    SeqSep,
+    SeqEnd,
+
+    TupleStart(usize),
+    TupleSep,
+    TupleEnd,
+
+    TupleStructStart(&'a str, usize),
+    TupleStructSep,
+    TupleStructEnd,
+
+    MapStart(Option<usize>),
+    MapSep,
+    MapEnd,
+
+    StructStart(&'a str, usize),
+    StructSep,
+    StructEnd,
+
+    EnumSeqStart(&'a str, &'a str, usize),
+    EnumSeqSep,
+    EnumSeqEnd,
+
+    EnumMapStart(&'a str, &'a str, usize),
+    EnumMapSep,
+    EnumMapEnd,
+}

serde_tests/Cargo.toml

@@ -1,35 +0,0 @@
-[package]
-name = "serde_tests"
-version = "0.7.6"
-authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
-license = "MIT/Apache-2.0"
-description = "A generic serialization/deserialization framework"
-repository = "https://github.com/serde-rs/serde"
-documentation = "http://serde-rs.github.io/serde/serde"
-readme = "README.md"
-keywords = ["serialization"]
-build = "build.rs"
-
-[features]
-nightly-testing = ["clippy", "serde/nightly-testing", "serde_codegen/nightly-testing"]
-
-[build-dependencies]
-syntex = { version = "^0.33.0" }
-syntex_syntax = { version = "^0.33.0" }
-serde_codegen = { version = "*", path = "../serde_codegen", features = ["with-syntex"] }
-
-[dev-dependencies]
-rustc-serialize = "^0.3.16"
-serde = { version = "*", path = "../serde" }
-syntex = "^0.33.0"
-
-[dependencies]
-clippy = { version = "^0.*", optional = true }
-
-[[test]]
-name = "test"
-path = "tests/test.rs"
-
-[[bench]]
-name = "bench"
-path = "benches/bench.rs"

serde_tests/benches/bench.rs

@@ -1,9 +0,0 @@
-#![feature(test)]
-#![cfg_attr(feature = "nightly", feature(plugin))]
-#![cfg_attr(feature = "nightly", plugin(clippy))]
-
-extern crate rustc_serialize;
-extern crate serde;
-extern crate test;
-
-include!(concat!(env!("OUT_DIR"), "/bench.rs"));

serde_tests/benches/bench.rs.in

@@ -1,4 +0,0 @@
-mod bench_enum;
-mod bench_map;
-mod bench_struct;
-mod bench_vec;

serde_tests/benches/bench_enum.rs

@@ -1,466 +0,0 @@
-use test::Bencher;
-use std::error;
-use std::fmt;
-use rustc_serialize::Decodable;
-use serde;
-use serde::de::Deserialize;
-
-//////////////////////////////////////////////////////////////////////////////
-
-#[derive(Clone, PartialEq, Debug, RustcDecodable, Deserialize)]
-pub enum Animal {
-    Dog,
-    Frog(String, isize)
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-#[derive(Debug)]
-pub enum Error {
-    EndOfStream,
-    Syntax,
-}
-
-impl serde::de::Error for Error {
-    fn custom<T: Into<String>>(_: T) -> Error { Error::Syntax }
-
-    fn end_of_stream() -> Error { Error::EndOfStream }
-
-    fn unknown_field(_: &str) -> Error { Error::Syntax }
-
-    fn missing_field(_: &'static str) -> Error { Error::Syntax }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
-        formatter.write_str(format!("{:?}", self).as_ref())
-    }
-}
-
-impl error::Error for Error {
-    fn description(&self) -> &str {
-        "Serde Deserialization Error"
-    }
-
-    fn cause(&self) -> Option<&error::Error> {
-        None
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-mod decoder {
-    use rustc_serialize::Decoder;
-
-    use super::{Animal, Error};
-    use super::Animal::{Dog, Frog};
-
-    enum State {
-        Animal(Animal),
-        Isize(isize),
-        String(String),
-    }
-
-    pub struct AnimalDecoder {
-        stack: Vec<State>,
-
-    }
-
-    impl AnimalDecoder {
-        #[inline]
-        pub fn new(animal: Animal) -> AnimalDecoder {
-            AnimalDecoder {
-                stack: vec!(State::Animal(animal)),
-            }
-        }
-    }
-
-    impl Decoder for AnimalDecoder {
-        type Error = Error;
-
-        fn error(&mut self, _: &str) -> Error { Error::Syntax }
-
-        // Primitive types:
-        fn read_nil(&mut self) -> Result<(), Error> { Err(Error::Syntax) }
-        fn read_usize(&mut self) -> Result<usize, Error> { Err(Error::Syntax) }
-        fn read_u64(&mut self) -> Result<u64, Error> { Err(Error::Syntax) }
-        fn read_u32(&mut self) -> Result<u32, Error> { Err(Error::Syntax) }
-        fn read_u16(&mut self) -> Result<u16, Error> { Err(Error::Syntax) }
-        fn read_u8(&mut self) -> Result<u8, Error> { Err(Error::Syntax) }
-        #[inline]
-        fn read_isize(&mut self) -> Result<isize, Error> {
-            match self.stack.pop() {
-                Some(State::Isize(x)) => Ok(x),
-                _ => Err(Error::Syntax),
-            }
-        }
-        fn read_i64(&mut self) -> Result<i64, Error> { Err(Error::Syntax) }
-        fn read_i32(&mut self) -> Result<i32, Error> { Err(Error::Syntax) }
-        fn read_i16(&mut self) -> Result<i16, Error> { Err(Error::Syntax) }
-        fn read_i8(&mut self) -> Result<i8, Error> { Err(Error::Syntax) }
-        fn read_bool(&mut self) -> Result<bool, Error> { Err(Error::Syntax) }
-        fn read_f64(&mut self) -> Result<f64, Error> { Err(Error::Syntax) }
-        fn read_f32(&mut self) -> Result<f32, Error> { Err(Error::Syntax) }
-        fn read_char(&mut self) -> Result<char, Error> { Err(Error::Syntax) }
-        #[inline]
-        fn read_str(&mut self) -> Result<String, Error> {
-            match self.stack.pop() {
-                Some(State::String(x)) => Ok(x),
-                _ => Err(Error::Syntax),
-            }
-        }
-
-        // Compound types:
-        #[inline]
-        fn read_enum<T, F>(&mut self, name: &str, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            match self.stack.pop() {
-                Some(State::Animal(animal)) => {
-                    self.stack.push(State::Animal(animal));
-                    if name == "Animal" {
-                        f(self)
-                    } else {
-                        Err(Error::Syntax)
-                    }
-                }
-                _ => Err(Error::Syntax)
-            }
-        }
-
-        #[inline]
-        fn read_enum_variant<T, F>(&mut self, names: &[&str], f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder, usize) -> Result<T, Error>,
-        {
-            let name = match self.stack.pop() {
-                Some(State::Animal(Dog)) => "Dog",
-                Some(State::Animal(Frog(x0, x1))) => {
-                    self.stack.push(State::Isize(x1));
-                    self.stack.push(State::String(x0));
-                    "Frog"
-                }
-                _ => { return Err(Error::Syntax); }
-            };
-
-            let idx = match names.iter().position(|n| *n == name) {
-                Some(idx) => idx,
-                None => { return Err(Error::Syntax); }
-            };
-
-            f(self, idx)
-        }
-
-        #[inline]
-        fn read_enum_variant_arg<T, F>(&mut self, _a_idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            f(self)
-        }
-
-        fn read_enum_struct_variant<T, F>(&mut self, _names: &[&str], _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_struct_variant_field<T, F>(&mut self, _f_name: &str, _f_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_struct<T, F>(&mut self, _s_name: &str, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_struct_field<T, F>(&mut self, _f_name: &str, _f_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple<T, F>(&mut self, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct<T, F>(&mut self, _s_name: &str, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        // Specialized types:
-        fn read_option<T, F>(&mut self, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder, bool) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        #[inline]
-        fn read_seq<T, F>(&mut self, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder, usize) -> Result<T, Error>,
-        {
-            f(self, 3)
-        }
-
-        #[inline]
-        fn read_seq_elt<T, F>(&mut self, _idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            f(self)
-        }
-
-        fn read_map<T, F>(&mut self, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_map_elt_key<T, F>(&mut self, _idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_map_elt_val<T, F>(&mut self, _idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut AnimalDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-mod deserializer {
-    use super::{Animal, Error};
-
-    use serde::de;
-
-    #[derive(Debug)]
-    enum State {
-        Animal(Animal),
-        Isize(isize),
-        Str(&'static str),
-        String(String),
-        UnitState,
-    }
-
-    pub struct AnimalDeserializer {
-        stack: Vec<State>,
-    }
-
-    impl AnimalDeserializer {
-        #[inline]
-        pub fn new(animal: Animal) -> AnimalDeserializer {
-            AnimalDeserializer {
-                stack: vec!(State::Animal(animal)),
-            }
-        }
-    }
-
-    impl de::Deserializer for AnimalDeserializer {
-        type Error = Error;
-
-        #[inline]
-        fn deserialize<V>(&mut self, mut visitor: V) -> Result<V::Value, Error>
-            where V: de::Visitor,
-        {
-            match self.stack.pop() {
-                Some(State::Isize(value)) => {
-                    visitor.visit_isize(value)
-                }
-                Some(State::String(value)) => {
-                    visitor.visit_string(value)
-                }
-                Some(State::Str(value)) => {
-                    visitor.visit_str(value)
-                }
-                Some(State::UnitState) => {
-                    visitor.visit_unit()
-                }
-                Some(_) => {
-                    Err(Error::Syntax)
-                }
-                None => {
-                    Err(Error::EndOfStream)
-                }
-            }
-        }
-
-        #[inline]
-        fn deserialize_enum<V>(&mut self,
-                         _name: &str,
-                         _variants: &[&str],
-                         mut visitor: V) -> Result<V::Value, Error>
-            where V: de::EnumVisitor,
-        {
-            match self.stack.pop() {
-                Some(State::Animal(Animal::Dog)) => {
-                    self.stack.push(State::UnitState);
-                    self.stack.push(State::Str("Dog"));
-                    visitor.visit(DogVisitor {
-                        de: self,
-                    })
-                }
-                Some(State::Animal(Animal::Frog(x0, x1))) => {
-                    self.stack.push(State::Isize(x1));
-                    self.stack.push(State::String(x0));
-                    self.stack.push(State::Str("Frog"));
-                    visitor.visit(FrogVisitor {
-                        de: self,
-                        state: 0,
-                    })
-                }
-                Some(_) => {
-                    Err(Error::Syntax)
-                }
-                None => {
-                    Err(Error::EndOfStream)
-                }
-            }
-        }
-    }
-
-    struct DogVisitor<'a> {
-        de: &'a mut AnimalDeserializer,
-    }
-
-    impl<'a> de::VariantVisitor for DogVisitor<'a> {
-        type Error = Error;
-
-        fn visit_variant<V>(&mut self) -> Result<V, Error>
-            where V: de::Deserialize
-        {
-            de::Deserialize::deserialize(self.de)
-        }
-
-        fn visit_unit(&mut self) -> Result<(), Error> {
-            de::Deserialize::deserialize(self.de)
-        }
-    }
-
-    struct FrogVisitor<'a> {
-        de: &'a mut AnimalDeserializer,
-        state: usize,
-    }
-
-    impl<'a> de::VariantVisitor for FrogVisitor<'a> {
-        type Error = Error;
-
-        fn visit_variant<V>(&mut self) -> Result<V, Error>
-            where V: de::Deserialize
-        {
-            de::Deserialize::deserialize(self.de)
-        }
-
-        fn visit_tuple<V>(&mut self,
-                          _len: usize,
-                          mut visitor: V) -> Result<V::Value, Error>
-            where V: de::Visitor,
-        {
-            visitor.visit_seq(self)
-        }
-    }
-
-    impl<'a> de::SeqVisitor for FrogVisitor<'a> {
-        type Error = Error;
-
-        fn visit<T>(&mut self) -> Result<Option<T>, Error>
-            where T: de::Deserialize,
-        {
-            match self.state {
-                0 => {
-                    self.state += 1;
-                    Ok(Some(try!(de::Deserialize::deserialize(self.de))))
-                }
-                1 => {
-                    self.state += 1;
-                    Ok(Some(try!(de::Deserialize::deserialize(self.de))))
-                }
-                _ => {
-                    Ok(None)
-                }
-            }
-        }
-
-        fn end(&mut self) -> Result<(), Error> {
-            if self.state == 2 {
-                Ok(())
-            } else {
-                Err(Error::Syntax)
-            }
-        }
-
-        fn size_hint(&self) -> (usize, Option<usize>) {
-            let len = 2 - self.state;
-            (len, Some(len))
-        }
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-#[bench]
-fn bench_decoder_dog(b: &mut Bencher) {
-    b.iter(|| {
-        let animal = Animal::Dog;
-
-        let mut d = decoder::AnimalDecoder::new(animal.clone());
-        let value: Animal = Decodable::decode(&mut d).unwrap();
-
-        assert_eq!(value, animal);
-    })
-}
-
-#[bench]
-fn bench_decoder_frog(b: &mut Bencher) {
-    b.iter(|| {
-        let animal = Animal::Frog("Henry".to_owned(), 349);
-
-        let mut d = decoder::AnimalDecoder::new(animal.clone());
-        let value: Animal = Decodable::decode(&mut d).unwrap();
-
-        assert_eq!(value, animal);
-    })
-}
-
-#[bench]
-fn bench_deserializer_dog(b: &mut Bencher) {
-    b.iter(|| {
-        let animal = Animal::Dog;
-
-        let mut d = deserializer::AnimalDeserializer::new(animal.clone());
-        let value: Animal = Deserialize::deserialize(&mut d).unwrap();
-
-        assert_eq!(value, animal);
-    })
-}
-
-#[bench]
-fn bench_deserializer_frog(b: &mut Bencher) {
-    b.iter(|| {
-        let animal = Animal::Frog("Henry".to_owned(), 349);
-
-        let mut d = deserializer::AnimalDeserializer::new(animal.clone());
-        let value: Animal = Deserialize::deserialize(&mut d).unwrap();
-
-        assert_eq!(value, animal);
-    })
-}

serde_tests/benches/bench_map.rs

@@ -1,474 +0,0 @@
-use std::fmt::Debug;
-use std::fmt;
-use std::error;
-use std::collections::HashMap;
-use test::Bencher;
-
-use rustc_serialize::{Decoder, Decodable};
-
-use serde;
-use serde::de::{Deserializer, Deserialize};
-
-//////////////////////////////////////////////////////////////////////////////
-
-#[derive(PartialEq, Debug)]
-pub enum Error {
-    EndOfStream,
-    Syntax,
-    MissingField,
-}
-
-impl serde::de::Error for Error {
-    fn custom<T: Into<String>>(_: T) -> Error { Error::Syntax }
-
-    fn end_of_stream() -> Error { Error::EndOfStream }
-
-    fn unknown_field(_: &str) -> Error { Error::Syntax }
-
-    fn missing_field(_: &'static str) -> Error {
-        Error::MissingField
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
-        formatter.write_str(format!("{:?}", self).as_ref())
-    }
-}
-
-impl error::Error for Error {
-    fn description(&self) -> &str {
-        "Serde Deserialization Error"
-    }
-
-    fn cause(&self) -> Option<&error::Error> {
-        None
-    }
-}
-//////////////////////////////////////////////////////////////////////////////
-
-mod decoder {
-    use std::collections::HashMap;
-    use std::collections::hash_map::IntoIter;
-    use rustc_serialize;
-
-    use super::Error;
-
-    enum Value {
-        String(String),
-        Isize(isize),
-    }
-
-    pub struct IsizeDecoder {
-        len: usize,
-        iter: IntoIter<String, isize>,
-        stack: Vec<Value>,
-    }
-
-    impl IsizeDecoder {
-        #[inline]
-        pub fn new(values: HashMap<String, isize>) -> IsizeDecoder {
-            IsizeDecoder {
-                len: values.len(),
-                iter: values.into_iter(),
-                stack: vec!(),
-            }
-        }
-    }
-
-    impl rustc_serialize::Decoder for IsizeDecoder {
-        type Error = Error;
-
-        fn error(&mut self, _msg: &str) -> Error {
-            Error::Syntax
-        }
-
-        // Primitive types:
-        fn read_nil(&mut self) -> Result<(), Error> { Err(Error::Syntax) }
-        fn read_usize(&mut self) -> Result<usize, Error> { Err(Error::Syntax) }
-        fn read_u64(&mut self) -> Result<u64, Error> { Err(Error::Syntax) }
-        fn read_u32(&mut self) -> Result<u32, Error> { Err(Error::Syntax) }
-        fn read_u16(&mut self) -> Result<u16, Error> { Err(Error::Syntax) }
-        fn read_u8(&mut self) -> Result<u8, Error> { Err(Error::Syntax) }
-        #[inline]
-        fn read_isize(&mut self) -> Result<isize, Error> {
-            match self.stack.pop() {
-                Some(Value::Isize(x)) => Ok(x),
-                Some(_) => Err(Error::Syntax),
-                None => Err(Error::EndOfStream),
-            }
-        }
-        fn read_i64(&mut self) -> Result<i64, Error> { Err(Error::Syntax) }
-        fn read_i32(&mut self) -> Result<i32, Error> { Err(Error::Syntax) }
-        fn read_i16(&mut self) -> Result<i16, Error> { Err(Error::Syntax) }
-        fn read_i8(&mut self) -> Result<i8, Error> { Err(Error::Syntax) }
-        fn read_bool(&mut self) -> Result<bool, Error> { Err(Error::Syntax) }
-        fn read_f64(&mut self) -> Result<f64, Error> { Err(Error::Syntax) }
-        fn read_f32(&mut self) -> Result<f32, Error> { Err(Error::Syntax) }
-        fn read_char(&mut self) -> Result<char, Error> { Err(Error::Syntax) }
-        #[inline]
-        fn read_str(&mut self) -> Result<String, Error> {
-            match self.stack.pop() {
-                Some(Value::String(x)) => Ok(x),
-                Some(_) => Err(Error::Syntax),
-                None => Err(Error::EndOfStream),
-            }
-        }
-
-        // Compound types:
-        fn read_enum<T, F>(&mut self, _name: &str, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_variant<T, F>(&mut self, _names: &[&str], _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_variant_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_struct_variant<T, F>(&mut self, _names: &[&str], _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_struct_variant_field<T, F>(&mut self, _f_name: &str, _f_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_struct<T, F>(&mut self, _s_name: &str, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_struct_field<T, F>(&mut self, _f_name: &str, _f_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple<T, F>(&mut self, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct<T, F>(&mut self, _s_name: &str, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        // Specialized types:
-        fn read_option<T, F>(&mut self, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder, bool) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_seq<T, F>(&mut self, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_seq_elt<T, F>(&mut self, _idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        #[inline]
-        fn read_map<T, F>(&mut self, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder, usize) -> Result<T, Error>,
-        {
-            let len = self.len;
-            f(self, len)
-        }
-        #[inline]
-        fn read_map_elt_key<T, F>(&mut self, _idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            match self.iter.next() {
-                Some((key, value)) => {
-                    self.stack.push(Value::Isize(value));
-                    self.stack.push(Value::String(key));
-                    f(self)
-                }
-                None => {
-                    Err(Error::Syntax)
-                }
-            }
-        }
-
-        #[inline]
-        fn read_map_elt_val<T, F>(&mut self, _idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut IsizeDecoder) -> Result<T, Error>,
-        {
-            f(self)
-        }
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-mod deserializer {
-    use std::collections::HashMap;
-    use std::collections::hash_map;
-
-    use super::Error;
-
-    use serde::de;
-
-    #[derive(PartialEq, Debug)]
-    enum State {
-        StartState,
-        Key(String),
-        Value(isize),
-    }
-
-    pub struct IsizeDeserializer {
-        stack: Vec<State>,
-        iter: hash_map::IntoIter<String, isize>,
-    }
-
-    impl IsizeDeserializer {
-        #[inline]
-        pub fn new(values: HashMap<String, isize>) -> IsizeDeserializer {
-            IsizeDeserializer {
-                stack: vec!(State::StartState),
-                iter: values.into_iter(),
-            }
-        }
-    }
-
-    impl de::Deserializer for IsizeDeserializer {
-        type Error = Error;
-
-        fn deserialize<V>(&mut self, mut visitor: V) -> Result<V::Value, Error>
-            where V: de::Visitor,
-        {
-            match self.stack.pop() {
-                Some(State::StartState) => {
-                    visitor.visit_map(self)
-                }
-                Some(State::Key(key)) => {
-                    visitor.visit_string(key)
-                }
-                Some(State::Value(value)) => {
-                    visitor.visit_isize(value)
-                }
-                None => {
-                    Err(Error::EndOfStream)
-                }
-            }
-        }
-    }
-
-    impl de::MapVisitor for IsizeDeserializer {
-        type Error = Error;
-
-        fn visit_key<K>(&mut self) -> Result<Option<K>, Error>
-            where K: de::Deserialize,
-        {
-            match self.iter.next() {
-                Some((key, value)) => {
-                    self.stack.push(State::Value(value));
-                    self.stack.push(State::Key(key));
-                    Ok(Some(try!(de::Deserialize::deserialize(self))))
-                }
-                None => {
-                    Ok(None)
-                }
-            }
-        }
-
-        fn visit_value<V>(&mut self) -> Result<V, Error>
-            where V: de::Deserialize,
-        {
-            de::Deserialize::deserialize(self)
-        }
-
-        fn end(&mut self) -> Result<(), Error> {
-            match self.iter.next() {
-                Some(_) => Err(Error::Syntax),
-                None => Ok(()),
-            }
-        }
-
-        fn size_hint(&self) -> (usize, Option<usize>) {
-            self.iter.size_hint()
-        }
-    }
-
-/*
-    impl Iterator for IsizeDeserializer {
-        type Item = Result<de::Token, Error>;
-
-        #[inline]
-        fn next(&mut self) -> Option<Result<de::Token, Error>> {
-            match self.stack.pop() {
-                Some(State::StartState) => {
-                    self.stack.push(KeyOrEndState);
-                    Some(Ok(de::Token::MapStart(self.len)))
-                }
-                Some(State::KeyOrEndState) => {
-                    match self.iter.next() {
-                        Some((key, value)) => {
-                            self.stack.push(Value(value));
-                            Some(Ok(de::Token::String(key)))
-                        }
-                        None => {
-                            self.stack.push(EndState);
-                            Some(Ok(de::Token::End))
-                        }
-                    }
-                }
-                Some(State::Value(x)) => {
-                    self.stack.push(KeyOrEndState);
-                    Some(Ok(de::Token::Isize(x)))
-                }
-                Some(EndState) => {
-                    None
-                }
-                None => {
-                    None
-                }
-            }
-        }
-    }
-
-    impl de::Deserializer<Error> for IsizeDeserializer {
-        #[inline]
-        fn end_of_stream(&mut self) -> Error {
-            EndOfStream
-        }
-
-        #[inline]
-        fn syntax(&mut self, _token: de::Token, _expected: &[de::TokenKind]) -> Error {
-            Syntax
-        }
-
-        #[inline]
-        fn unexpected_name(&mut self, _token: de::Token) -> Error {
-            Syntax
-        }
-
-        #[inline]
-        fn conversion_error(&mut self, _token: de::Token) -> Error {
-            Syntax
-        }
-
-        #[inline]
-        fn missing_field<
-            T: de::Deserialize<IsizeDeserializer, Error>
-        >(&mut self, _field: &'static str) -> Result<T, Error> {
-            Err(Error::Syntax)
-        }
-    }
-*/
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-fn run_decoder<
-    D: Decoder<Error=Error>,
-    T: Clone + PartialEq + Debug + Decodable
->(mut d: D, value: T) {
-    let v = Decodable::decode(&mut d);
-
-    assert_eq!(Ok(value), v);
-}
-
-#[bench]
-fn bench_decoder_000(b: &mut Bencher) {
-    b.iter(|| {
-        let m: HashMap<String, isize> = HashMap::new();
-        run_decoder(decoder::IsizeDecoder::new(m.clone()), m)
-    })
-}
-
-#[bench]
-fn bench_decoder_003(b: &mut Bencher) {
-    b.iter(|| {
-        let mut m: HashMap<String, isize> = HashMap::new();
-        for i in 0 .. 3 {
-            m.insert(i.to_string(), i);
-        }
-        run_decoder(decoder::IsizeDecoder::new(m.clone()), m)
-    })
-}
-
-#[bench]
-fn bench_decoder_100(b: &mut Bencher) {
-    b.iter(|| {
-        let mut m: HashMap<String, isize> = HashMap::new();
-        for i in 0 .. 100 {
-            m.insert(i.to_string(), i);
-        }
-        run_decoder(decoder::IsizeDecoder::new(m.clone()), m)
-    })
-}
-
-fn run_deserializer<D, T>(mut d: D, value: T)
-    where D: Deserializer,
-          D::Error: Debug + PartialEq,
-          T: Clone + PartialEq + Debug + Deserialize
-{
-    let v = T::deserialize(&mut d);
-
-    assert_eq!(Ok(value), v);
-}
-
-#[bench]
-fn bench_deserializer_000(b: &mut Bencher) {
-    b.iter(|| {
-        let m: HashMap<String, isize> = HashMap::new();
-        run_deserializer(deserializer::IsizeDeserializer::new(m.clone()), m)
-    })
-}
-
-#[bench]
-fn bench_deserializer_003(b: &mut Bencher) {
-    b.iter(|| {
-        let mut m: HashMap<String, isize> = HashMap::new();
-        for i in 0 .. 3 {
-            m.insert(i.to_string(), i);
-        }
-        run_deserializer(deserializer::IsizeDeserializer::new(m.clone()), m)
-    })
-}
-
-#[bench]
-fn bench_deserializer_100(b: &mut Bencher) {
-    b.iter(|| {
-        let mut m: HashMap<String, isize> = HashMap::new();
-        for i in 0 .. 100 {
-            m.insert(i.to_string(), i);
-        }
-        run_deserializer(deserializer::IsizeDeserializer::new(m.clone()), m)
-    })
-}

serde_tests/benches/bench_struct.rs

@@ -1,745 +0,0 @@
-use std::collections::HashMap;
-use test::Bencher;
-use std::fmt;
-use std::error;
-
-use rustc_serialize::Decodable;
-
-use serde;
-use serde::de::Deserialize;
-
-//////////////////////////////////////////////////////////////////////////////
-
-#[derive(Clone, PartialEq, Debug, RustcDecodable, Deserialize)]
-pub struct Inner {
-    a: (),
-    b: usize,
-    c: HashMap<String, Option<char>>,
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-#[derive(Clone, PartialEq, Debug, RustcDecodable, Deserialize)]
-pub struct Outer {
-    inner: Vec<Inner>,
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-#[derive(Debug, PartialEq)]
-pub enum Error {
-    EndOfStream,
-    Syntax,
-    MissingField,
-    OtherError,
-}
-
-impl serde::de::Error for Error {
-    fn custom<T: Into<String>>(_: T) -> Error { Error::Syntax }
-
-    fn end_of_stream() -> Error { Error::EndOfStream }
-
-    fn unknown_field(_: &str) -> Error { Error::Syntax }
-
-    fn missing_field(_: &'static str) -> Error {
-        Error::MissingField
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
-        formatter.write_str(format!("{:?}", self).as_ref())
-    }
-}
-
-impl error::Error for Error {
-    fn description(&self) -> &str {
-        "Serde Deserialization Error"
-    }
-
-    fn cause(&self) -> Option<&error::Error> {
-        None
-    }
-}
-
-mod decoder {
-    use std::collections::HashMap;
-    use rustc_serialize::Decoder;
-
-    use super::{Outer, Inner, Error};
-
-    #[derive(Debug)]
-    enum State {
-        Outer(Outer),
-        Inner(Inner),
-        Null,
-        Usize(usize),
-        Char(char),
-        String(String),
-        Field(&'static str),
-        Vec(Vec<Inner>),
-        Map(HashMap<String, Option<char>>),
-        Option(bool),
-    }
-
-    pub struct OuterDecoder {
-        stack: Vec<State>,
-
-    }
-
-    impl OuterDecoder {
-        #[inline]
-        pub fn new(animal: Outer) -> OuterDecoder {
-            OuterDecoder {
-                stack: vec!(State::Outer(animal)),
-            }
-        }
-    }
-
-    impl Decoder for OuterDecoder {
-        type Error = Error;
-
-        fn error(&mut self, _msg: &str) -> Error {
-            Error::OtherError
-        }
-
-        // Primitive types:
-        #[inline]
-        fn read_nil(&mut self) -> Result<(), Error> {
-            match self.stack.pop() {
-                Some(State::Null) => Ok(()),
-                _ => Err(Error::Syntax),
-            }
-        }
-        #[inline]
-        fn read_usize(&mut self) -> Result<usize, Error> {
-            match self.stack.pop() {
-                Some(State::Usize(value)) => Ok(value),
-                _ => Err(Error::Syntax),
-            }
-        }
-        fn read_u64(&mut self) -> Result<u64, Error> { Err(Error::Syntax) }
-        fn read_u32(&mut self) -> Result<u32, Error> { Err(Error::Syntax) }
-        fn read_u16(&mut self) -> Result<u16, Error> { Err(Error::Syntax) }
-        fn read_u8(&mut self) -> Result<u8, Error> { Err(Error::Syntax) }
-        fn read_isize(&mut self) -> Result<isize, Error> { Err(Error::Syntax) }
-        fn read_i64(&mut self) -> Result<i64, Error> { Err(Error::Syntax) }
-        fn read_i32(&mut self) -> Result<i32, Error> { Err(Error::Syntax) }
-        fn read_i16(&mut self) -> Result<i16, Error> { Err(Error::Syntax) }
-        fn read_i8(&mut self) -> Result<i8, Error> { Err(Error::Syntax) }
-        fn read_bool(&mut self) -> Result<bool, Error> { Err(Error::Syntax) }
-        fn read_f64(&mut self) -> Result<f64, Error> { Err(Error::Syntax) }
-        fn read_f32(&mut self) -> Result<f32, Error> { Err(Error::Syntax) }
-        #[inline]
-        fn read_char(&mut self) -> Result<char, Error> {
-            match self.stack.pop() {
-                Some(State::Char(c)) => Ok(c),
-                _ => Err(Error::Syntax),
-            }
-        }
-        #[inline]
-        fn read_str(&mut self) -> Result<String, Error> {
-            match self.stack.pop() {
-                Some(State::String(value)) => Ok(value),
-                _ => Err(Error::Syntax),
-            }
-        }
-
-        // Compound types:
-        fn read_enum<T, F>(&mut self, _name: &str, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_variant<T, F>(&mut self, _names: &[&str], _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_variant_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_struct_variant<T, F>(&mut self, _names: &[&str], _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_struct_variant_field<T, F>(&mut self, _f_name: &str, _f_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        #[inline]
-        fn read_struct<T, F>(&mut self, s_name: &str, _len: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            match self.stack.pop() {
-                Some(State::Outer(Outer { inner })) => {
-                    if s_name == "Outer" {
-                        self.stack.push(State::Vec(inner));
-                        self.stack.push(State::Field("inner"));
-                        f(self)
-                    } else {
-                        Err(Error::Syntax)
-                    }
-                }
-                Some(State::Inner(Inner { a: (), b, c })) => {
-                    if s_name == "Inner" {
-                        self.stack.push(State::Map(c));
-                        self.stack.push(State::Field("c"));
-
-                        self.stack.push(State::Usize(b));
-                        self.stack.push(State::Field("b"));
-
-                        self.stack.push(State::Null);
-                        self.stack.push(State::Field("a"));
-                        f(self)
-                    } else {
-                        Err(Error::Syntax)
-                    }
-                }
-                _ => Err(Error::Syntax),
-            }
-        }
-        #[inline]
-        fn read_struct_field<T, F>(&mut self, f_name: &str, _f_idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            match self.stack.pop() {
-                Some(State::Field(name)) => {
-                    if f_name == name {
-                        f(self)
-                    } else {
-                        Err(Error::Syntax)
-                    }
-                }
-                _ => Err(Error::Syntax)
-            }
-        }
-
-        fn read_tuple<T, F>(&mut self, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct<T, F>(&mut self, _s_name: &str, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        // Specialized types:
-        #[inline]
-        fn read_option<T, F>(&mut self, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder, bool) -> Result<T, Error>,
-        {
-            match self.stack.pop() {
-                Some(State::Option(b)) => f(self, b),
-                _ => Err(Error::Syntax),
-            }
-        }
-
-        #[inline]
-        fn read_seq<T, F>(&mut self, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder, usize) -> Result<T, Error>,
-        {
-            match self.stack.pop() {
-                Some(State::Vec(value)) => {
-                    let len = value.len();
-                    for inner in value.into_iter().rev() {
-                        self.stack.push(State::Inner(inner));
-                    }
-                    f(self, len)
-                }
-                _ => Err(Error::Syntax)
-            }
-        }
-        #[inline]
-        fn read_seq_elt<T, F>(&mut self, _idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            f(self)
-        }
-
-        #[inline]
-        fn read_map<T, F>(&mut self, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder, usize) -> Result<T, Error>,
-        {
-            match self.stack.pop() {
-                Some(State::Map(map)) => {
-                    let len = map.len();
-                    for (key, value) in map {
-                        match value {
-                            Some(c) => {
-                                self.stack.push(State::Char(c));
-                                self.stack.push(State::Option(true));
-                            }
-                            None => {
-                                self.stack.push(State::Option(false));
-                            }
-                        }
-                        self.stack.push(State::String(key));
-                    }
-                    f(self, len)
-                }
-                _ => Err(Error::Syntax),
-            }
-        }
-        #[inline]
-        fn read_map_elt_key<T, F>(&mut self, _idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            f(self)
-        }
-
-        #[inline]
-        fn read_map_elt_val<T, F>(&mut self, _idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut OuterDecoder) -> Result<T, Error>,
-        {
-            f(self)
-        }
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-mod deserializer {
-    use std::collections::HashMap;
-    use std::collections::hash_map;
-    use std::vec;
-    use super::{Outer, Inner};
-    use super::Error;
-    use serde::de;
-
-    #[derive(Debug)]
-    enum State {
-        Outer(Outer),
-        Inner(Inner),
-        Str(&'static str),
-        Null,
-        Usize(usize),
-        Char(char),
-        String(String),
-        Option(bool),
-        Vec(Vec<Inner>),
-        Map(HashMap<String, Option<char>>),
-    }
-
-    pub struct OuterDeserializer {
-        stack: Vec<State>,
-    }
-
-    impl OuterDeserializer {
-        #[inline]
-        pub fn new(outer: Outer) -> OuterDeserializer {
-            OuterDeserializer {
-                stack: vec!(State::Outer(outer)),
-            }
-        }
-    }
-
-    impl de::Deserializer for OuterDeserializer {
-        type Error = Error;
-
-        fn deserialize<V>(&mut self, mut visitor: V) -> Result<V::Value, Error>
-            where V: de::Visitor,
-        {
-            match self.stack.pop() {
-                Some(State::Vec(value)) => {
-                    visitor.visit_seq(OuterSeqVisitor {
-                        de: self,
-                        iter: value.into_iter(),
-                    })
-                }
-                Some(State::Map(value)) => {
-                    visitor.visit_map(MapVisitor {
-                        de: self,
-                        iter: value.into_iter(),
-                    })
-                }
-                Some(State::Null) => {
-                    visitor.visit_unit()
-                }
-                Some(State::Usize(x)) => {
-                    visitor.visit_usize(x)
-                }
-                Some(State::Char(x)) => {
-                    visitor.visit_char(x)
-                }
-                Some(State::Str(x)) => {
-                    visitor.visit_str(x)
-                }
-                Some(State::String(x)) => {
-                    visitor.visit_string(x)
-                }
-                Some(State::Option(false)) => {
-                    visitor.visit_none()
-                }
-                Some(State::Option(true)) => {
-                    visitor.visit_some(self)
-                }
-                Some(_) => Err(Error::Syntax),
-                None => Err(Error::EndOfStream),
-            }
-        }
-
-        fn deserialize_struct<V>(&mut self,
-                           name: &str,
-                           _fields: &'static [&'static str],
-                           mut visitor: V) -> Result<V::Value, Error>
-            where V: de::Visitor,
-        {
-            match self.stack.pop() {
-                Some(State::Outer(Outer { inner })) => {
-                    if name != "Outer" {
-                        return Err(Error::Syntax);
-                    }
-
-                    self.stack.push(State::Vec(inner));
-                    self.stack.push(State::Str("inner"));
-
-                    visitor.visit_map(OuterMapVisitor {
-                        de: self,
-                        state: 0,
-                    })
-                }
-                Some(State::Inner(Inner { a: (), b, c })) => {
-                    if name != "Inner" {
-                        return Err(Error::Syntax);
-                    }
-
-                    self.stack.push(State::Map(c));
-                    self.stack.push(State::Str("c"));
-
-                    self.stack.push(State::Usize(b));
-                    self.stack.push(State::Str("b"));
-
-                    self.stack.push(State::Null);
-                    self.stack.push(State::Str("a"));
-
-                    visitor.visit_map(InnerMapVisitor {
-                        de: self,
-                        state: 0,
-                    })
-                }
-                _ => {
-                    Err(Error::Syntax)
-                }
-            }
-        }
-    }
-
-    struct OuterMapVisitor<'a> {
-        de: &'a mut OuterDeserializer,
-        state: usize,
-    }
-
-    impl<'a> de::MapVisitor for OuterMapVisitor<'a> {
-        type Error = Error;
-
-        fn visit_key<K>(&mut self) -> Result<Option<K>, Error>
-            where K: de::Deserialize,
-        {
-            match self.state {
-                0 => {
-                    self.state += 1;
-                    Ok(Some(try!(de::Deserialize::deserialize(self.de))))
-                }
-                _ => {
-                    Ok(None)
-                }
-            }
-        }
-
-        fn visit_value<V>(&mut self) -> Result<V, Error>
-            where V: de::Deserialize,
-        {
-            de::Deserialize::deserialize(self.de)
-        }
-
-        fn end(&mut self) -> Result<(), Error> {
-            if self.state == 1 {
-                Ok(())
-            } else {
-                Err(Error::Syntax)
-            }
-        }
-
-        fn size_hint(&self) -> (usize, Option<usize>) {
-            let len = 1 - self.state;
-            (len, Some(len))
-        }
-    }
-
-    struct OuterSeqVisitor<'a> {
-        de: &'a mut OuterDeserializer,
-        iter: vec::IntoIter<Inner>,
-    }
-
-    impl<'a> de::SeqVisitor for OuterSeqVisitor<'a> {
-        type Error = Error;
-
-        fn visit<T>(&mut self) -> Result<Option<T>, Error>
-            where T: de::Deserialize,
-        {
-            match self.iter.next() {
-                Some(value) => {
-                    self.de.stack.push(State::Inner(value));
-                    Ok(Some(try!(de::Deserialize::deserialize(self.de))))
-                }
-                None => {
-                    Ok(None)
-                }
-            }
-        }
-
-        fn end(&mut self) -> Result<(), Error> {
-            match self.iter.next() {
-                Some(_) => Err(Error::Syntax),
-                None => Ok(()),
-            }
-        }
-
-        fn size_hint(&self) -> (usize, Option<usize>) {
-            self.iter.size_hint()
-        }
-    }
-
-    struct InnerMapVisitor<'a> {
-        de: &'a mut OuterDeserializer,
-        state: usize,
-    }
-
-    impl<'a> de::MapVisitor for InnerMapVisitor<'a> {
-        type Error = Error;
-
-        fn visit_key<K>(&mut self) -> Result<Option<K>, Error>
-            where K: de::Deserialize,
-        {
-            match self.state {
-                0 ... 2 => {
-                    self.state += 1;
-                    Ok(Some(try!(de::Deserialize::deserialize(self.de))))
-                }
-                _ => {
-                    Ok(None)
-                }
-            }
-        }
-
-        fn visit_value<V>(&mut self) -> Result<V, Error>
-            where V: de::Deserialize,
-        {
-            de::Deserialize::deserialize(self.de)
-        }
-
-        fn end(&mut self) -> Result<(), Error> {
-            if self.state == 3 {
-                Ok(())
-            } else {
-                Err(Error::Syntax)
-            }
-        }
-
-        fn size_hint(&self) -> (usize, Option<usize>) {
-            let len = 1 - self.state;
-            (len, Some(len))
-        }
-    }
-
-    struct MapVisitor<'a> {
-        de: &'a mut OuterDeserializer,
-        iter: hash_map::IntoIter<String, Option<char>>,
-    }
-
-    impl<'a> de::MapVisitor for MapVisitor<'a> {
-        type Error = Error;
-
-        fn visit_key<K>(&mut self) -> Result<Option<K>, Error>
-            where K: de::Deserialize,
-        {
-            match self.iter.next() {
-                Some((key, Some(value))) => {
-                    self.de.stack.push(State::Char(value));
-                    self.de.stack.push(State::Option(true));
-                    self.de.stack.push(State::String(key));
-                    Ok(Some(try!(de::Deserialize::deserialize(self.de))))
-                }
-                Some((key, None)) => {
-                    self.de.stack.push(State::Option(false));
-                    self.de.stack.push(State::String(key));
-                    Ok(Some(try!(de::Deserialize::deserialize(self.de))))
-                }
-                None => {
-                    Ok(None)
-                }
-            }
-        }
-
-        fn visit_value<V>(&mut self) -> Result<V, Error>
-            where V: de::Deserialize,
-        {
-            de::Deserialize::deserialize(self.de)
-        }
-
-        fn end(&mut self) -> Result<(), Error> {
-            match self.iter.next() {
-                Some(_) => Err(Error::Syntax),
-                None => Ok(()),
-            }
-        }
-
-        fn size_hint(&self) -> (usize, Option<usize>) {
-            self.iter.size_hint()
-        }
-    }
-}
-
-#[bench]
-fn bench_decoder_0_0(b: &mut Bencher) {
-    b.iter(|| {
-        let mut map = HashMap::new();
-        map.insert("abc".to_owned(), Some('c'));
-
-        let outer = Outer {
-            inner: vec!(),
-        };
-
-        let mut d = decoder::OuterDecoder::new(outer.clone());
-        let value: Result<Outer, Error> = Decodable::decode(&mut d);
-
-        assert_eq!(value, Ok(outer));
-    })
-}
-
-#[bench]
-fn bench_decoder_1_0(b: &mut Bencher) {
-    b.iter(|| {
-        let map = HashMap::new();
-
-        let outer = Outer {
-            inner: vec!(
-                Inner {
-                    a: (),
-                    b: 5,
-                    c: map,
-                },
-            )
-        };
-
-        let mut d = decoder::OuterDecoder::new(outer.clone());
-        let value: Result<Outer, Error> = Decodable::decode(&mut d);
-
-        assert_eq!(value, Ok(outer));
-    })
-}
-
-#[bench]
-fn bench_decoder_1_5(b: &mut Bencher) {
-    b.iter(|| {
-        let mut map = HashMap::new();
-        map.insert("1".to_owned(), Some('a'));
-        map.insert("2".to_owned(), None);
-        map.insert("3".to_owned(), Some('b'));
-        map.insert("4".to_owned(), None);
-        map.insert("5".to_owned(), Some('c'));
-
-        let outer = Outer {
-            inner: vec!(
-                Inner {
-                    a: (),
-                    b: 5,
-                    c: map,
-                },
-            )
-        };
-
-        let mut d = decoder::OuterDecoder::new(outer.clone());
-        let value: Result<Outer, Error> = Decodable::decode(&mut d);
-
-        assert_eq!(value, Ok(outer));
-    })
-}
-
-#[bench]
-fn bench_deserializer_0_0(b: &mut Bencher) {
-    b.iter(|| {
-        let outer = Outer {
-            inner: vec!(),
-        };
-
-        let mut d = deserializer::OuterDeserializer::new(outer.clone());
-        let value: Result<Outer, Error> = Deserialize::deserialize(&mut d);
-
-        assert_eq!(value, Ok(outer));
-    })
-}
-
-#[bench]
-fn bench_deserializer_1_0(b: &mut Bencher) {
-    b.iter(|| {
-        let map = HashMap::new();
-
-        let outer = Outer {
-            inner: vec!(
-                Inner {
-                    a: (),
-                    b: 5,
-                    c: map,
-                },
-            )
-        };
-
-        let mut d = deserializer::OuterDeserializer::new(outer.clone());
-        let value: Result<Outer, Error> = Deserialize::deserialize(&mut d);
-
-        assert_eq!(value, Ok(outer));
-    })
-}
-
-#[bench]
-fn bench_deserializer_1_5(b: &mut Bencher) {
-    b.iter(|| {
-        let mut map = HashMap::new();
-        map.insert("1".to_owned(), Some('a'));
-        map.insert("2".to_owned(), None);
-        map.insert("3".to_owned(), Some('b'));
-        map.insert("4".to_owned(), None);
-        map.insert("5".to_owned(), Some('c'));
-
-        let outer = Outer {
-            inner: vec!(
-                Inner {
-                    a: (),
-                    b: 5,
-                    c: map,
-                },
-            )
-        };
-
-        let mut d = deserializer::OuterDeserializer::new(outer.clone());
-        let value: Result<Outer, Error> = Deserialize::deserialize(&mut d);
-
-        assert_eq!(value, Ok(outer));
-    })
-}

serde_tests/benches/bench_vec.rs

@@ -1,628 +0,0 @@
-use std::fmt::Debug;
-use std::fmt;
-use std::error;
-use test::Bencher;
-
-use rustc_serialize::{Decoder, Decodable};
-
-use serde;
-use serde::de::{Deserializer, Deserialize};
-
-//////////////////////////////////////////////////////////////////////////////
-
-#[derive(PartialEq, Debug)]
-pub enum Error {
-    EndOfStream,
-    Syntax,
-}
-
-impl serde::de::Error for Error {
-    fn custom<T: Into<String>>(_: T) -> Error { Error::Syntax }
-
-    fn end_of_stream() -> Error { Error::EndOfStream }
-
-    fn unknown_field(_: &str) -> Error { Error::Syntax }
-
-    fn missing_field(_: &'static str) -> Error { Error::Syntax }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
-        formatter.write_str(format!("{:?}", self).as_ref())
-    }
-}
-
-impl error::Error for Error {
-    fn description(&self) -> &str {
-        "Serde Deserialization Error"
-    }
-
-    fn cause(&self) -> Option<&error::Error> {
-        None
-    }
-}
-//////////////////////////////////////////////////////////////////////////////
-
-mod decoder {
-    use std::vec;
-    use rustc_serialize;
-
-    use super::Error;
-
-    pub struct UsizeDecoder {
-        len: usize,
-        iter: vec::IntoIter<usize>,
-    }
-
-    impl UsizeDecoder {
-        #[inline]
-        pub fn new(values: Vec<usize>) -> UsizeDecoder {
-            UsizeDecoder {
-                len: values.len(),
-                iter: values.into_iter(),
-            }
-        }
-    }
-
-    impl rustc_serialize::Decoder for UsizeDecoder {
-        type Error = Error;
-
-        fn error(&mut self, _: &str) -> Error { Error::Syntax }
-
-        // Primitive types:
-        fn read_nil(&mut self) -> Result<(), Error> { Err(Error::Syntax) }
-        #[inline]
-        fn read_usize(&mut self) -> Result<usize, Error> {
-            match self.iter.next() {
-                Some(value) => Ok(value),
-                None => Err(Error::EndOfStream),
-            }
-        }
-        fn read_u64(&mut self) -> Result<u64, Error> { Err(Error::Syntax) }
-        fn read_u32(&mut self) -> Result<u32, Error> { Err(Error::Syntax) }
-        fn read_u16(&mut self) -> Result<u16, Error> { Err(Error::Syntax) }
-        fn read_u8(&mut self) -> Result<u8, Error> { Err(Error::Syntax) }
-        fn read_isize(&mut self) -> Result<isize, Error> { Err(Error::Syntax) }
-        fn read_i64(&mut self) -> Result<i64, Error> { Err(Error::Syntax) }
-        fn read_i32(&mut self) -> Result<i32, Error> { Err(Error::Syntax) }
-        fn read_i16(&mut self) -> Result<i16, Error> { Err(Error::Syntax) }
-        fn read_i8(&mut self) -> Result<i8, Error> { Err(Error::Syntax) }
-        fn read_bool(&mut self) -> Result<bool, Error> { Err(Error::Syntax) }
-        fn read_f64(&mut self) -> Result<f64, Error> { Err(Error::Syntax) }
-        fn read_f32(&mut self) -> Result<f32, Error> { Err(Error::Syntax) }
-        fn read_char(&mut self) -> Result<char, Error> { Err(Error::Syntax) }
-        fn read_str(&mut self) -> Result<String, Error> { Err(Error::Syntax) }
-
-        // Compound types:
-        fn read_enum<T, F>(&mut self, _name: &str, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_variant<T, F>(&mut self, _names: &[&str], _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_variant_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_struct_variant<T, F>(&mut self, _names: &[&str], _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_struct_variant_field<T, F>(&mut self, _f_name: &str, _f_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_struct<T, F>(&mut self, _s_name: &str, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_struct_field<T, F>(&mut self, _f_name: &str, _f_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple<T, F>(&mut self, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct<T, F>(&mut self, _s_name: &str, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        // Specialized types:
-        fn read_option<T, F>(&mut self, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder, bool) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        #[inline]
-        fn read_seq<T, F>(&mut self, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder, usize) -> Result<T, Error>,
-        {
-            let len = self.len;
-            f(self, len)
-        }
-        #[inline]
-        fn read_seq_elt<T, F>(&mut self, _idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            f(self)
-        }
-
-        fn read_map<T, F>(&mut self, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_map_elt_key<T, F>(&mut self, _idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_map_elt_val<T, F>(&mut self, _idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut UsizeDecoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-    }
-
-
-    pub struct U8Decoder {
-        len: usize,
-        iter: vec::IntoIter<u8>,
-    }
-
-    impl U8Decoder {
-        #[inline]
-        pub fn new(values: Vec<u8>) -> U8Decoder {
-            U8Decoder {
-                len: values.len(),
-                iter: values.into_iter(),
-            }
-        }
-    }
-
-    impl rustc_serialize::Decoder for U8Decoder {
-        type Error = Error;
-
-        fn error(&mut self, _: &str) -> Error { Error::Syntax }
-
-        // Primitive types:
-        fn read_nil(&mut self) -> Result<(), Error> { Err(Error::Syntax) }
-        fn read_usize(&mut self) -> Result<usize, Error> { Err(Error::Syntax) }
-        fn read_u64(&mut self) -> Result<u64, Error> { Err(Error::Syntax) }
-        fn read_u32(&mut self) -> Result<u32, Error> { Err(Error::Syntax) }
-        fn read_u16(&mut self) -> Result<u16, Error> { Err(Error::Syntax) }
-        #[inline]
-        fn read_u8(&mut self) -> Result<u8, Error> {
-            match self.iter.next() {
-                Some(value) => Ok(value),
-                None => Err(Error::EndOfStream),
-            }
-        }
-        #[inline]
-        fn read_isize(&mut self) -> Result<isize, Error> { Err(Error::Syntax) }
-        fn read_i64(&mut self) -> Result<i64, Error> { Err(Error::Syntax) }
-        fn read_i32(&mut self) -> Result<i32, Error> { Err(Error::Syntax) }
-        fn read_i16(&mut self) -> Result<i16, Error> { Err(Error::Syntax) }
-        fn read_i8(&mut self) -> Result<i8, Error> { Err(Error::Syntax) }
-        fn read_bool(&mut self) -> Result<bool, Error> { Err(Error::Syntax) }
-        fn read_f64(&mut self) -> Result<f64, Error> { Err(Error::Syntax) }
-        fn read_f32(&mut self) -> Result<f32, Error> { Err(Error::Syntax) }
-        fn read_char(&mut self) -> Result<char, Error> { Err(Error::Syntax) }
-        fn read_str(&mut self) -> Result<String, Error> { Err(Error::Syntax) }
-
-        // Compound types:
-        fn read_enum<T, F>(&mut self, _name: &str, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_variant<T, F>(&mut self, _names: &[&str], _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_variant_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_struct_variant<T, F>(&mut self, _names: &[&str], _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_enum_struct_variant_field<T, F>(&mut self, _f_name: &str, _f_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_struct<T, F>(&mut self, _s_name: &str, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_struct_field<T, F>(&mut self, _f_name: &str, _f_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple<T, F>(&mut self, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct<T, F>(&mut self, _s_name: &str, _len: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_tuple_struct_arg<T, F>(&mut self, _a_idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        // Specialized types:
-        fn read_option<T, F>(&mut self, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder, bool) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        #[inline]
-        fn read_seq<T, F>(&mut self, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder, usize) -> Result<T, Error>,
-        {
-            let len = self.len;
-            f(self, len)
-        }
-        #[inline]
-        fn read_seq_elt<T, F>(&mut self, _idx: usize, f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            f(self)
-        }
-
-        fn read_map<T, F>(&mut self, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder, usize) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_map_elt_key<T, F>(&mut self, _idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-
-        fn read_map_elt_val<T, F>(&mut self, _idx: usize, _f: F) -> Result<T, Error> where
-            F: FnOnce(&mut U8Decoder) -> Result<T, Error>,
-        {
-            Err(Error::Syntax)
-        }
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-mod deserializer {
-    //use std::num;
-    use std::vec;
-
-    use super::Error;
-
-    use serde::de;
-
-    #[derive(PartialEq, Debug)]
-    enum State {
-        Start,
-        SepOrEnd,
-        End,
-    }
-
-    pub struct Deserializer<A> {
-        state: State,
-        iter: vec::IntoIter<A>,
-        len: usize,
-        value: Option<A>,
-    }
-
-    impl<A> Deserializer<A> {
-        #[inline]
-        pub fn new(values: Vec<A>) -> Deserializer<A> {
-            let len = values.len();
-            Deserializer {
-                state: State::Start,
-                iter: values.into_iter(),
-                len: len,
-                value: None,
-            }
-        }
-    }
-
-    impl de::Deserializer for Deserializer<usize> {
-        type Error = Error;
-
-        #[inline]
-        fn deserialize<V>(&mut self, mut visitor: V) -> Result<V::Value, Error>
-            where V: de::Visitor,
-        {
-            match self.state {
-                State::Start => {
-                    self.state = State::SepOrEnd;
-                    visitor.visit_seq(self)
-                }
-                State::SepOrEnd => {
-                    visitor.visit_usize(self.value.take().unwrap())
-                }
-                State::End => {
-                    Err(Error::EndOfStream)
-                }
-            }
-        }
-    }
-
-    impl de::SeqVisitor for Deserializer<usize> {
-        type Error = Error;
-
-        #[inline]
-        fn visit<T>(&mut self) -> Result<Option<T>, Error>
-            where T: de::Deserialize,
-        {
-            match self.iter.next() {
-                Some(value) => {
-                    self.len -= 1;
-                    self.value = Some(value);
-                    Ok(Some(try!(de::Deserialize::deserialize(self))))
-                }
-                None => {
-                    self.state = State::End;
-                    Ok(None)
-                }
-            }
-        }
-
-        #[inline]
-        fn end(&mut self) -> Result<(), Error> {
-            match self.iter.next() {
-                Some(_) => Err(Error::Syntax),
-                None => {
-                    self.state = State::End;
-                    Ok(())
-                }
-            }
-        }
-
-        #[inline]
-        fn size_hint(&self) -> (usize, Option<usize>) {
-            (self.len, Some(self.len))
-        }
-    }
-
-    impl de::Deserializer for Deserializer<u8> {
-        type Error = Error;
-
-        #[inline]
-        fn deserialize<V>(&mut self, mut visitor: V) -> Result<V::Value, Error>
-            where V: de::Visitor,
-        {
-            match self.state {
-                State::Start => {
-                    self.state = State::SepOrEnd;
-                    visitor.visit_seq(self)
-                }
-                State::SepOrEnd => {
-                    visitor.visit_u8(self.value.take().unwrap())
-                }
-                State::End => {
-                    Err(Error::EndOfStream)
-                }
-            }
-        }
-    }
-
-    impl de::SeqVisitor for Deserializer<u8> {
-        type Error = Error;
-
-        #[inline]
-        fn visit<T>(&mut self) -> Result<Option<T>, Error>
-            where T: de::Deserialize,
-        {
-            match self.iter.next() {
-                Some(value) => {
-                    self.len -= 1;
-                    self.value = Some(value);
-                    Ok(Some(try!(de::Deserialize::deserialize(self))))
-                }
-                None => {
-                    self.state = State::End;
-                    Ok(None)
-                }
-            }
-        }
-
-        #[inline]
-        fn end(&mut self) -> Result<(), Error> {
-            match self.iter.next() {
-                Some(_) => Err(Error::Syntax),
-                None => {
-                    self.state = State::End;
-                    Ok(())
-                }
-            }
-        }
-
-        #[inline]
-        fn size_hint(&self) -> (usize, Option<usize>) {
-            (self.len, Some(self.len))
-        }
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////////
-
-fn run_decoder<
-    D: Decoder<Error=Error>,
-    T: Clone + PartialEq + Debug + Decodable
->(mut d: D, value: T) {
-    let v = Decodable::decode(&mut d);
-
-    assert_eq!(Ok(value), v);
-}
-
-fn run_deserializer<D, T>(mut d: D, value: T)
-    where D: Deserializer,
-          D::Error: Debug + PartialEq,
-          T: Clone + PartialEq + Debug + Deserialize
-{
-    let v = T::deserialize(&mut d);
-
-    assert_eq!(Ok(value), v);
-}
-
-#[bench]
-fn bench_decoder_usize_000(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<usize> = vec!();
-        run_decoder(decoder::UsizeDecoder::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_decoder_usize_003(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<usize> = vec!(1, 2, 3);
-        run_decoder(decoder::UsizeDecoder::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_decoder_usize_100(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<usize> = (0 .. 100).collect();
-        run_decoder(decoder::UsizeDecoder::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_decoder_u8_000(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<u8> = vec!();
-        run_decoder(decoder::U8Decoder::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_decoder_u8_003(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<u8> = vec!(1, 2, 3);
-        run_decoder(decoder::U8Decoder::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_decoder_u8_100(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<u8> = (0 .. 100).collect();
-        run_decoder(decoder::U8Decoder::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_deserializer_usize_000(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<usize> = vec!();
-        run_deserializer(deserializer::Deserializer::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_deserializer_usize_003(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<usize> = vec!(1, 2, 3);
-        run_deserializer(deserializer::Deserializer::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_deserializer_usize_100(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<usize> = (0 .. 100).collect();
-        run_deserializer(deserializer::Deserializer::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_deserializer_u8_000(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<u8> = vec!();
-        run_deserializer(deserializer::Deserializer::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_deserializer_u8_003(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<u8> = vec!(1, 2, 3);
-        run_deserializer(deserializer::Deserializer::new(v.clone()), v)
-    })
-}
-
-#[bench]
-fn bench_deserializer_u8_100(b: &mut Bencher) {
-    b.iter(|| {
-        let v: Vec<u8> = (0 .. 100).collect();
-        run_deserializer(deserializer::Deserializer::new(v.clone()), v)
-    })
-}

serde_tests/build.rs

@@ -1,22 +0,0 @@
-extern crate syntex;
-extern crate serde_codegen;
-
-use std::env;
-use std::path::Path;
-
-fn main() {
-    let out_dir = env::var_os("OUT_DIR").unwrap();
-
-    for &(src, dst) in &[
-        ("tests/test.rs.in", "test.rs"),
-        ("benches/bench.rs.in", "bench.rs"),
-    ] {
-        let src = Path::new(src);
-        let dst = Path::new(&out_dir).join(dst);
-
-        let mut registry = syntex::Registry::new();
-
-        serde_codegen::register(&mut registry);
-        registry.expand("", &src, &dst).unwrap();
-    }
-}

serde_tests/tests/test.rs

@@ -1,4 +0,0 @@
-#![cfg_attr(feature = "nightly", feature(plugin))]
-#![cfg_attr(feature = "nightly", plugin(clippy))]
-
-include!(concat!(env!("OUT_DIR"), "/test.rs"));

serde_tests/tests/test.rs.in

@@ -1,11 +0,0 @@
-#[macro_use]
-mod macros;
-
-mod token;
-
-mod test_annotations;
-mod test_bytes;
-mod test_de;
-mod test_gen;
-mod test_macros;
-mod test_ser;

serde_tests/tests/test_bytes.rs

@@ -1,185 +0,0 @@
-use std::fmt;
-use std::error;
-
-extern crate serde;
-use self::serde::Serialize;
-use self::serde::bytes::{ByteBuf, Bytes};
-
-///////////////////////////////////////////////////////////////////////////////
-
-#[derive(Debug, PartialEq)]
-struct Error;
-
-impl serde::ser::Error for Error {
-    fn custom<T: Into<String>>(_: T) -> Error { Error }
-}
-
-impl serde::de::Error for Error {
-    fn custom<T: Into<String>>(_: T) -> Error { Error }
-
-    fn end_of_stream() -> Error { Error }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
-        formatter.write_str(format!("{:?}", self).as_ref())
-    }
-}
-
-impl error::Error for Error {
-    fn description(&self) -> &str {
-        "Serde Deserialization Error"
-    }
-
-    fn cause(&self) -> Option<&error::Error> {
-        None
-    }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-struct BytesSerializer {
-    bytes: Vec<u8>,
-}
-
-impl BytesSerializer {
-    fn new(bytes: Vec<u8>) -> Self {
-        BytesSerializer {
-            bytes: bytes,
-        }
-    }
-}
-
-impl serde::Serializer for BytesSerializer {
-    type Error = Error;
-
-    fn serialize_unit(&mut self) -> Result<(), Error> {
-        Err(Error)
-    }
-
-    fn serialize_bool(&mut self, _v: bool) -> Result<(), Error> {
-        Err(Error)
-    }
-
-    fn serialize_i64(&mut self, _v: i64) -> Result<(), Error> {
-        Err(Error)
-    }
-
-    fn serialize_u64(&mut self, _v: u64) -> Result<(), Error> {
-        Err(Error)
-    }
-
-    fn serialize_f32(&mut self, _v: f32) -> Result<(), Error> {
-        Err(Error)
-    }
-
-    fn serialize_f64(&mut self, _v: f64) -> Result<(), Error> {
-        Err(Error)
-    }
-
-    fn serialize_char(&mut self, _v: char) -> Result<(), Error> {
-        Err(Error)
-    }
-
-    fn serialize_str(&mut self, _v: &str) -> Result<(), Error> {
-        Err(Error)
-    }
-
-    fn serialize_none(&mut self) -> Result<(), Error> {
-        Err(Error)
-    }
-
-    fn serialize_some<V>(&mut self, _value: V) -> Result<(), Error>
-        where V: serde::Serialize,
-    {
-        Err(Error)
-    }
-
-    fn serialize_seq<V>(&mut self, _visitor: V) -> Result<(), Error>
-        where V: serde::ser::SeqVisitor,
-    {
-        Err(Error)
-    }
-
-    fn serialize_seq_elt<T>(&mut self, _value: T) -> Result<(), Error>
-        where T: serde::Serialize
-    {
-        Err(Error)
-    }
-
-    fn serialize_map<V>(&mut self, _visitor: V) -> Result<(), Error>
-        where V: serde::ser::MapVisitor,
-    {
-        Err(Error)
-    }
-
-    fn serialize_map_elt<K, V>(&mut self, _key: K, _value: V) -> Result<(), Error>
-        where K: serde::Serialize,
-              V: serde::Serialize,
-    {
-        Err(Error)
-    }
-
-    fn serialize_bytes(&mut self, bytes: &[u8]) -> Result<(), Error> {
-        assert_eq!(self.bytes, bytes);
-        Ok(())
-    }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-struct BytesDeserializer {
-    bytes: Option<Vec<u8>>,
-}
-
-impl BytesDeserializer {
-    fn new(bytes: Vec<u8>) -> Self {
-        BytesDeserializer {
-            bytes: Some(bytes),
-        }
-    }
-}
-
-impl serde::Deserializer for BytesDeserializer {
-    type Error = Error;
-
-    fn deserialize<V>(&mut self, _visitor: V) -> Result<V::Value, Error>
-        where V: serde::de::Visitor,
-    {
-        Err(Error)
-    }
-
-    fn deserialize_bytes<V>(&mut self, mut visitor: V) -> Result<V::Value, Error>
-        where V: serde::de::Visitor,
-    {
-        visitor.visit_byte_buf(self.bytes.take().unwrap())
-    }
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-#[test]
-fn test_bytes_ser_bytes() {
-    let buf = vec![];
-    let bytes = Bytes::from(&buf);
-    let mut ser = BytesSerializer::new(vec![]);
-    bytes.serialize(&mut ser).unwrap();
-
-    let buf = vec![1, 2, 3];
-    let bytes = Bytes::from(&buf);
-    let mut ser = BytesSerializer::new(vec![1, 2, 3]);
-    bytes.serialize(&mut ser).unwrap();
-}
-
-///////////////////////////////////////////////////////////////////////////////
-
-#[test]
-fn test_byte_buf_de_bytes() {
-    let mut de = BytesDeserializer::new(vec![]);
-    let bytes = serde::Deserialize::deserialize(&mut de);
-    assert_eq!(bytes, Ok(ByteBuf::new()));
-
-    let mut de = BytesDeserializer::new(vec![1, 2, 3]);
-    let bytes = serde::Deserialize::deserialize(&mut de);
-    assert_eq!(bytes, Ok(ByteBuf::from(vec![1, 2, 3])));
-}

serde_tests/tests/test_gen.rs

@@ -1,83 +0,0 @@
-// These just test that serde_codegen is able to produce code that compiles
-// successfully when there are a variety of generics and non-(de)serializable
-// types involved.
-
-extern crate serde;
-use self::serde::ser::{Serialize, Serializer};
-use self::serde::de::{Deserialize, Deserializer};
-
-//////////////////////////////////////////////////////////////////////////
-
-#[derive(Serialize, Deserialize)]
-struct With<T> {
-    t: T,
-    #[serde(serialize_with="ser_x", deserialize_with="de_x")]
-    x: X,
-}
-
-#[derive(Serialize, Deserialize)]
-struct WithRef<'a, T: 'a> {
-    #[serde(skip_deserializing)]
-    t: Option<&'a T>,
-    #[serde(serialize_with="ser_x", deserialize_with="de_x")]
-    x: X,
-}
-
-#[derive(Serialize, Deserialize)]
-struct Bounds<T: Serialize + Deserialize> {
-    t: T,
-    option: Option<T>,
-    boxed: Box<T>,
-    option_boxed: Option<Box<T>>,
-}
-
-#[derive(Serialize, Deserialize)]
-struct NoBounds<T> {
-    t: T,
-    option: Option<T>,
-    boxed: Box<T>,
-    option_boxed: Option<Box<T>>,
-}
-
-#[derive(Serialize, Deserialize)]
-enum EnumWith<T> {
-    Unit,
-    Newtype(
-        #[serde(serialize_with="ser_x", deserialize_with="de_x")]
-        X),
-    Tuple(
-        T,
-        #[serde(serialize_with="ser_x", deserialize_with="de_x")]
-        X),
-    Struct {
-        t: T,
-        #[serde(serialize_with="ser_x", deserialize_with="de_x")]
-        x: X },
-}
-
-#[derive(Serialize)]
-struct MultipleRef<'a, 'b, 'c, T> where T: 'c, 'c: 'b, 'b: 'a {
-    t: T,
-    rrrt: &'a &'b &'c T,
-}
-
-#[derive(Serialize, Deserialize)]
-struct Newtype(
-    #[serde(serialize_with="ser_x", deserialize_with="de_x")]
-    X
-);
-
-#[derive(Serialize, Deserialize)]
-struct Tuple<T>(
-    T,
-    #[serde(serialize_with="ser_x", deserialize_with="de_x")]
-    X,
-);
-
-//////////////////////////////////////////////////////////////////////////
-
-// Implements neither Serialize nor Deserialize
-struct X;
-fn ser_x<S: Serializer>(_: &X, _: &mut S) -> Result<(), S::Error> { panic!() }
-fn de_x<D: Deserializer>(_: &mut D) -> Result<X, D::Error> { panic!() }
-

serde_tests/tests/test_macros.rs

@@ -1,633 +0,0 @@
-use std::marker::PhantomData;
-use token::{Token, assert_tokens, assert_ser_tokens, assert_de_tokens};
-
-/*
-trait Trait {
-    type Type;
-}
-*/
-
-// That tests that the derived Serialize implementation doesn't trigger
-// any warning about `serializer` not being used, in case of empty enums.
-#[derive(Serialize)]
-#[allow(dead_code)]
-#[deny(unused_variables)]
-enum Void {}
-
-#[derive(Debug, PartialEq, Serialize, Deserialize)]
-struct NamedUnit;
-
-#[derive(Debug, PartialEq, Serialize)]
-struct SerNamedTuple<'a, 'b, A: 'a, B: 'b, C>(&'a A, &'b mut B, C);
-
-#[derive(Debug, PartialEq, Deserialize)]
-struct DeNamedTuple<A, B, C>(A, B, C);
-
-#[derive(Debug, PartialEq, Serialize)]
-struct SerNamedMap<'a, 'b, A: 'a, B: 'b, C> {
-    a: &'a A,
-    b: &'b mut B,
-    c: C,
-}
-
-#[derive(Debug, PartialEq, Deserialize)]
-struct DeNamedMap<A, B, C> {
-    a: A,
-    b: B,
-    c: C,
-}
-
-#[derive(Debug, PartialEq, Serialize)]
-enum SerEnum<'a, B: 'a, C: /* Trait + */ 'a, D> where D: /* Trait + */ 'a {
-    Unit,
-    Seq(
-        i8,
-        B,
-        &'a C,
-        //C::Type,
-        &'a mut D,
-        //<D as Trait>::Type,
-    ),
-    Map {
-        a: i8,
-        b: B,
-        c: &'a C,
-        //d: C::Type,
-        e: &'a mut D,
-        //f: <D as Trait>::Type,
-    },
-
-    // Make sure we can support more than one variant.
-    _Unit2,
-    _Seq2(
-        i8,
-        B,
-        &'a C,
-        //C::Type,
-        &'a mut D,
-        //<D as Trait>::Type,
-    ),
-    _Map2 {
-        a: i8,
-        b: B,
-        c: &'a C,
-        //d: C::Type,
-        e: &'a mut D,
-        //f: <D as Trait>::Type,
-    },
-}
-
-#[derive(Debug, PartialEq, Serialize, Deserialize)]
-enum DeEnum<B, C: /* Trait */, D> /* where D: Trait */ {
-    Unit,
-    Seq(
-        i8,
-        B,
-        C,
-        //C::Type,
-        D,
-        //<D as Trait>::Type,
-    ),
-    Map {
-        a: i8,
-        b: B,
-        c: C,
-        //d: C::Type,
-        e: D,
-        //f: <D as Trait>::Type,
-    },
-
-    // Make sure we can support more than one variant.
-    _Unit2,
-    _Seq2(
-        i8,
-        B,
-        C,
-        //C::Type,
-        D,
-        //<D as Trait>::Type,
-    ),
-    _Map2 {
-        a: i8,
-        b: B,
-        c: C,
-        //d: C::Type,
-        e: D,
-        //f: <D as Trait>::Type,
-    },
-}
-
-#[derive(Serialize)]
-enum Lifetimes<'a> {
-    LifetimeSeq(&'a i32),
-    NoLifetimeSeq(i32),
-    LifetimeMap { a: &'a i32 },
-    NoLifetimeMap { a: i32 },
-}
-
-#[derive(Debug, PartialEq, Serialize, Deserialize)]
-pub struct GenericStruct<T> {
-    x: T,
-}
-
-#[derive(Debug, PartialEq, Serialize, Deserialize)]
-pub struct GenericNewTypeStruct<T>(T);
-
-#[derive(Debug, PartialEq, Serialize, Deserialize)]
-pub struct GenericTupleStruct<T, U>(T, U);
-
-#[derive(Debug, PartialEq, Serialize, Deserialize)]
-pub enum GenericEnum<T, U> {
-    Unit,
-    NewType(T),
-    Seq(T, U),
-    Map { x: T, y: U },
-}
-
-trait AssociatedType {
-    type X;
-}
-
-impl AssociatedType for i32 {
-    type X = i32;
-}
-
-#[derive(Debug, PartialEq, Serialize, Deserialize)]
-struct DefaultTyParam<T: AssociatedType<X=i32> = i32> {
-    phantom: PhantomData<T>
-}
-
-#[test]
-fn test_named_unit() {
-    assert_tokens(
-        &NamedUnit,
-        vec![Token::UnitStruct("NamedUnit")]
-    );
-}
-
-#[test]
-fn test_ser_named_tuple() {
-    let a = 5;
-    let mut b = 6;
-    let c = 7;
-    assert_ser_tokens(
-        &SerNamedTuple(&a, &mut b, c),
-        &[
-            Token::TupleStructStart("SerNamedTuple", Some(3)),
-            Token::TupleStructSep,
-            Token::I32(5),
-
-            Token::TupleStructSep,
-            Token::I32(6),
-
-            Token::TupleStructSep,
-            Token::I32(7),
-
-            Token::TupleStructEnd,
-        ],
-    );
-}
-
-#[test]
-fn test_de_named_tuple() {
-    assert_de_tokens(
-        &DeNamedTuple(5, 6, 7),
-        vec![
-            Token::SeqStart(Some(3)),
-            Token::SeqSep,
-            Token::I32(5),
-
-            Token::SeqSep,
-            Token::I32(6),
-
-            Token::SeqSep,
-            Token::I32(7),
-
-            Token::SeqEnd,
-        ]
-    );
-
-    assert_de_tokens(
-        &DeNamedTuple(5, 6, 7),
-        vec![
-            Token::TupleStructStart("DeNamedTuple", Some(3)),
-            Token::TupleStructSep,
-            Token::I32(5),
-
-            Token::TupleStructSep,
-            Token::I32(6),
-
-            Token::TupleStructSep,
-            Token::I32(7),
-
-            Token::TupleStructEnd,
-        ]
-    );
-}
-
-#[test]
-fn test_ser_named_map() {
-    let a = 5;
-    let mut b = 6;
-    let c = 7;
-
-    assert_ser_tokens(
-        &SerNamedMap {
-            a: &a,
-            b: &mut b,
-            c: c,
-        },
-        &[
-            Token::StructStart("SerNamedMap", Some(3)),
-
-            Token::StructSep,
-            Token::Str("a"),
-            Token::I32(5),
-
-            Token::StructSep,
-            Token::Str("b"),
-            Token::I32(6),
-
-            Token::StructSep,
-            Token::Str("c"),
-            Token::I32(7),
-
-            Token::StructEnd,
-        ]
-    );
-}
-
-#[test]
-fn test_de_named_map() {
-    assert_de_tokens(
-        &DeNamedMap {
-            a: 5,
-            b: 6,
-            c: 7,
-        },
-        vec![
-            Token::StructStart("DeNamedMap", Some(3)),
-
-            Token::StructSep,
-            Token::Str("a"),
-            Token::I32(5),
-
-            Token::StructSep,
-            Token::Str("b"),
-            Token::I32(6),
-
-            Token::StructSep,
-            Token::Str("c"),
-            Token::I32(7),
-
-            Token::StructEnd,
-        ]
-    );
-}
-
-#[test]
-fn test_ser_enum_unit() {
-    assert_ser_tokens(
-        &SerEnum::Unit::<u32, u32, u32>,
-        &[
-            Token::EnumUnit("SerEnum", "Unit"),
-        ]
-    );
-}
-
-#[test]
-fn test_ser_enum_seq() {
-    let a = 1;
-    let b = 2;
-    let c = 3;
-    //let d = 4;
-    let mut e = 5;
-    //let f = 6;
-
-    assert_ser_tokens(
-        &SerEnum::Seq(
-            a,
-            b,
-            &c,
-            //d,
-            &mut e,
-            //f,
-        ),
-        &[
-            Token::EnumSeqStart("SerEnum", "Seq", Some(4)),
-
-            Token::EnumSeqSep,
-            Token::I8(1),
-
-            Token::EnumSeqSep,
-            Token::I32(2),
-
-            Token::EnumSeqSep,
-            Token::I32(3),
-
-            Token::EnumSeqSep,
-            Token::I32(5),
-
-            Token::EnumSeqEnd,
-        ],
-    );
-}
-
-#[test]
-fn test_ser_enum_map() {
-    let a = 1;
-    let b = 2;
-    let c = 3;
-    //let d = 4;
-    let mut e = 5;
-    //let f = 6;
-
-    assert_ser_tokens(
-        &SerEnum::Map {
-            a: a,
-            b: b,
-            c: &c,
-            //d: d,
-            e: &mut e,
-            //f: f,
-        },
-        &[
-            Token::EnumMapStart("SerEnum", "Map", Some(4)),
-
-            Token::EnumMapSep,
-            Token::Str("a"),
-            Token::I8(1),
-
-            Token::EnumMapSep,
-            Token::Str("b"),
-            Token::I32(2),
-
-            Token::EnumMapSep,
-            Token::Str("c"),
-            Token::I32(3),
-
-            Token::EnumMapSep,
-            Token::Str("e"),
-            Token::I32(5),
-
-            Token::EnumMapEnd,
-        ],
-    );
-}
-
-#[test]
-fn test_de_enum_unit() {
-    assert_tokens(
-        &DeEnum::Unit::<u32, u32, u32>,
-        vec![
-            Token::EnumUnit("DeEnum", "Unit"),
-        ],
-    );
-}
-
-#[test]
-fn test_de_enum_seq() {
-    let a = 1;
-    let b = 2;
-    let c = 3;
-    //let d = 4;
-    let e = 5;
-    //let f = 6;
-
-    assert_tokens(
-        &DeEnum::Seq(
-            a,
-            b,
-            c,
-            //d,
-            e,
-            //f,
-        ),
-        vec![
-            Token::EnumSeqStart("DeEnum", "Seq", Some(4)),
-
-            Token::EnumSeqSep,
-            Token::I8(1),
-
-            Token::EnumSeqSep,
-            Token::I32(2),
-
-            Token::EnumSeqSep,
-            Token::I32(3),
-
-            Token::EnumSeqSep,
-            Token::I32(5),
-
-            Token::EnumSeqEnd,
-        ],
-    );
-}
-
-#[test]
-fn test_de_enum_map() {
-    let a = 1;
-    let b = 2;
-    let c = 3;
-    //let d = 4;
-    let e = 5;
-    //let f = 6;
-
-    assert_tokens(
-        &DeEnum::Map {
-            a: a,
-            b: b,
-            c: c,
-            //d: d,
-            e: e,
-            //f: f,
-        },
-        vec![
-            Token::EnumMapStart("DeEnum", "Map", Some(4)),
-
-            Token::EnumMapSep,
-            Token::Str("a"),
-            Token::I8(1),
-
-            Token::EnumMapSep,
-            Token::Str("b"),
-            Token::I32(2),
-
-            Token::EnumMapSep,
-            Token::Str("c"),
-            Token::I32(3),
-
-            Token::EnumMapSep,
-            Token::Str("e"),
-            Token::I32(5),
-
-            Token::EnumMapEnd,
-        ],
-    );
-}
-
-#[test]
-fn test_lifetimes() {
-    let value = 5;
-
-    assert_ser_tokens(
-        &Lifetimes::LifetimeSeq(&value),
-        &[
-            Token::EnumNewType("Lifetimes", "LifetimeSeq"),
-            Token::I32(5),
-        ]
-    );
-
-    assert_ser_tokens(
-        &Lifetimes::NoLifetimeSeq(5),
-        &[
-            Token::EnumNewType("Lifetimes", "NoLifetimeSeq"),
-            Token::I32(5),
-        ]
-    );
-
-    assert_ser_tokens(
-        &Lifetimes::LifetimeMap { a: &value },
-        &[
-            Token::EnumMapStart("Lifetimes", "LifetimeMap", Some(1)),
-
-            Token::EnumMapSep,
-            Token::Str("a"),
-            Token::I32(5),
-
-            Token::EnumMapEnd,
-        ]
-    );
-
-    assert_ser_tokens(
-        &Lifetimes::NoLifetimeMap { a: 5 },
-        &[
-            Token::EnumMapStart("Lifetimes", "NoLifetimeMap", Some(1)),
-
-            Token::EnumMapSep,
-            Token::Str("a"),
-            Token::I32(5),
-
-            Token::EnumMapEnd,
-        ]
-    );
-}
-
-#[test]
-fn test_generic_struct() {
-    assert_tokens(
-        &GenericStruct { x: 5u32 },
-        vec![
-            Token::StructStart("GenericStruct", Some(1)),
-
-            Token::StructSep,
-            Token::Str("x"),
-            Token::U32(5),
-
-            Token::StructEnd,
-        ]
-    );
-}
-
-#[test]
-fn test_generic_newtype_struct() {
-    assert_tokens(
-        &GenericNewTypeStruct(5u32),
-        vec![
-            Token::StructNewType("GenericNewTypeStruct"),
-            Token::U32(5),
-        ]
-    );
-}
-
-#[test]
-fn test_generic_tuple_struct() {
-    assert_tokens(
-        &GenericTupleStruct(5u32, 6u32),
-        vec![
-            Token::TupleStructStart("GenericTupleStruct", Some(2)),
-
-            Token::TupleStructSep,
-            Token::U32(5),
-
-            Token::TupleStructSep,
-            Token::U32(6),
-
-            Token::TupleStructEnd,
-        ]
-    );
-}
-
-#[test]
-fn test_generic_enum_unit() {
-    assert_tokens(
-        &GenericEnum::Unit::<u32, u32>,
-        vec![
-            Token::EnumUnit("GenericEnum", "Unit"),
-        ]
-    );
-}
-
-#[test]
-fn test_generic_enum_newtype() {
-    assert_tokens(
-        &GenericEnum::NewType::<u32, u32>(5),
-        vec![
-            Token::EnumNewType("GenericEnum", "NewType"),
-            Token::U32(5),
-        ]
-    );
-}
-
-#[test]
-fn test_generic_enum_seq() {
-    assert_tokens(
-        &GenericEnum::Seq::<u32, u32>(5, 6),
-        vec![
-            Token::EnumSeqStart("GenericEnum", "Seq", Some(2)),
-
-            Token::EnumSeqSep,
-            Token::U32(5),
-
-            Token::EnumSeqSep,
-            Token::U32(6),
-
-            Token::EnumSeqEnd,
-        ]
-    );
-}
-
-#[test]
-fn test_generic_enum_map() {
-    assert_tokens(
-        &GenericEnum::Map::<u32, u32> { x: 5, y: 6 },
-        vec![
-            Token::EnumMapStart("GenericEnum", "Map", Some(2)),
-
-            Token::EnumMapSep,
-            Token::Str("x"),
-            Token::U32(5),
-
-            Token::EnumMapSep,
-            Token::Str("y"),
-            Token::U32(6),
-
-            Token::EnumMapEnd,
-        ]
-    );
-}
-
-#[test]
-fn test_default_ty_param() {
-    assert_tokens(
-        &DefaultTyParam::<i32> { phantom: PhantomData },
-        vec![
-            Token::StructStart("DefaultTyParam", Some(1)),
-
-            Token::StructSep,
-            Token::Str("phantom"),
-            Token::UnitStruct("PhantomData"),
-
-            Token::StructEnd,
-        ]
-    );
-}

test_suite/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "serde_test_suite"
+version = "0.0.0"
+authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
+publish = false
+
+[features]
+unstable-testing = ["compiletest_rs"]
+
+[dev-dependencies]
+fnv = "1.0"
+rustc-serialize = "0.3.16"
+serde = { path = "../serde" }
+serde_derive = { path = "../serde_derive" }
+serde_test = { path = "../serde_test" }
+
+[dependencies]
+compiletest_rs = { version = "0.2", optional = true }

test_suite/deps/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "serde_test_suite_deps"
+version = "0.0.0"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
+publish = false
+
+[workspace]
+
+[dependencies]
+serde = { path = "../../serde" }
+serde_derive = { path = "../../serde_derive" }

test_suite/no_std/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "serde_derive_tests_no_std"
+version = "0.0.0"
+publish = false
+
+[dependencies]
+serde = { path = "../../serde", default-features = false }
+serde_derive = { path = "../../serde_derive" }

test_suite/no_std/src/main.rs

@@ -0,0 +1,52 @@
+#![feature(lang_items, start, libc)]
+#![no_std]
+
+extern crate libc;
+
+#[start]
+fn start(_argc: isize, _argv: *const *const u8) -> isize {
+    0
+}
+
+#[lang = "eh_personality"]
+#[no_mangle]
+pub extern fn rust_eh_personality() {}
+
+#[lang = "eh_unwind_resume"]
+#[no_mangle]
+pub extern fn rust_eh_unwind_resume() {}
+
+#[lang = "panic_fmt"]
+#[no_mangle]
+pub extern fn rust_begin_panic(_msg: core::fmt::Arguments,
+                               _file: &'static str,
+                               _line: u32) -> ! {
+    unsafe {
+        libc::abort()
+    }
+}
+
+//////////////////////////////////////////////////////////////////////////////
+
+#[macro_use]
+extern crate serde_derive;
+
+#[derive(Serialize, Deserialize)]
+struct Unit;
+
+#[derive(Serialize, Deserialize)]
+struct Newtype(u8);
+
+#[derive(Serialize, Deserialize)]
+struct Tuple(u8, u8);
+
+#[derive(Serialize, Deserialize)]
+struct Struct { f: u8 }
+
+#[derive(Serialize, Deserialize)]
+enum Enum {
+    Unit,
+    Newtype(u8),
+    Tuple(u8, u8),
+    Struct { f: u8 },
+}

test_suite/tests/compile-fail/default-attribute/enum.rs

@@ -0,0 +1,8 @@
+#[macro_use]
+extern crate serde_derive;
+
+#[derive(Deserialize)] //~ ERROR: proc-macro derive panicked
+#[serde(default)] //~^ HELP: #[serde(default)] can only be used on structs
+enum E {
+    S { f: u8 },
+}

test_suite/tests/compile-fail/default-attribute/nameless_struct_fields.rs

@@ -0,0 +1,8 @@
+#[macro_use]
+extern crate serde_derive;
+
+#[derive(Deserialize)] //~ ERROR: proc-macro derive panicked
+#[serde(default)] //~^ HELP: #[serde(default)] can only be used on structs
+struct T(u8, u8);
+
+fn main() { }

test_suite/tests/compile-fail/duplicate-attribute/rename-and-ser.rs

@@ -0,0 +1,10 @@
+#[macro_use]
+extern crate serde_derive;
+
+#[derive(Serialize)] //~ ERROR: proc-macro derive panicked
+struct S {
+    #[serde(rename="x", serialize="y")] //~^^ HELP: unknown serde field attribute `serialize`
+    x: (),
+}
+
+fn main() {}

test_suite/tests/compile-fail/duplicate-attribute/rename-rename-de.rs

@@ -0,0 +1,11 @@
+#[macro_use]
+extern crate serde_derive;
+
+#[derive(Serialize)] //~ ERROR: proc-macro derive panicked
+struct S {
+    #[serde(rename="x")]
+    #[serde(rename(deserialize="y"))] //~^^^ HELP: duplicate serde attribute `rename`
+    x: (),
+}
+
+fn main() {}