Update syntex to 0.39

Use cargo override instead of relative paths

.cargo/config

@@ -0,0 +1,7 @@
+paths = [
+  "serde",
+  "serde_codegen",
+  "serde_codegen_internals",
+  "serde_macros",
+  "serde_test",
+]

.travis.yml

@@ -2,10 +2,10 @@ sudo: false
 language: rust
 rust:
 - stable
-- beta
 - nightly
-- 1.7.0
 - 1.8.0
+- 1.9.0
+- beta
 addons:
   apt:
     packages:
@@ -22,15 +22,15 @@ script:
 - (cd serde && travis-cargo 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 --skip nightly test)
-- (cd serde_tests && travis-cargo --only nightly test -- --features nightly-testing)
+- (cd testing && travis-cargo --skip nightly test)
+- (cd testing && travis-cargo --only nightly test -- --features nightly-testing)
 - (cd serde_macros && travis-cargo --only nightly test -- --features nightly-testing)
 - (cd examples/serde-syntex-example && travis-cargo --skip nightly run)
 - (cd examples/serde-syntex-example && travis-cargo --only nightly run -- --no-default-features --features nightly)
 - (cd serde && travis-cargo --only stable doc)
 after_success:
 - (cd serde && travis-cargo --only stable doc-upload)
-- (cd serde_tests && travis-cargo --only stable coveralls --no-sudo)
+- (cd testing && travis-cargo --only stable coveralls --no-sudo)
 env:
   global:
   - TRAVIS_CARGO_NIGHTLY_FEATURE=""

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).

README.md

@@ -12,74 +12,100 @@ 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:
+[Documentation](https://serde-rs.github.io/serde/serde/index.html)
 
-* [serde](https://serde-rs.github.io/serde/serde/index.html)
+Simple Serde Example
+====================
 
-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`:
+Here is a simple example that uses
+[serde_json](https://github.com/serde-rs/json), which uses Serde under the
+covers, to generate and parse JSON. First, lets start off with the `Cargo.toml`
+file:
 
 ```toml
 [package]
-name = "serde_example_nightly"
+name = "serde_example"
 version = "0.1.0"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 
 [dependencies]
-serde = "*"
 serde_json = "*"
-serde_macros = "*"
 ```
 
-`src/main.rs`
-
-```rust
-#![feature(custom_derive, plugin)]
-#![plugin(serde_macros)]
+Next, the `src/main.rs` file itself:
 
+```rust,ignore
 extern crate serde_json;
 
-#[derive(Serialize, Deserialize, Debug)]
-struct Point {
-    x: i32,
-    y: i32,
-}
+use std::collections::HashMap;
+use serde_json::Value;
+use serde_json::builder::{ArrayBuilder, ObjectBuilder};
 
 fn main() {
-    let point = Point { x: 1, y: 2 };
-    let serialized = serde_json::to_string(&point).unwrap();
+    // Serde has support for many of the builtin Rust types, like arrays..:
+    let v = vec![1, 2];
+    let serialized = serde_json::to_string(&v).unwrap();
+    println!("serialized vec: {:?}", serialized);
 
-    println!("{}", serialized);
+    let deserialized: Vec<u32> = serde_json::from_str(&serialized).unwrap();
+    println!("deserialized vec: {:?}", deserialized);
 
-    let deserialized: Point = serde_json::from_str(&serialized).unwrap();
+    // ... and maps:
+    let mut map = HashMap::new();
+    map.insert("x".to_string(), 1);
+    map.insert("y".to_string(), 2);
 
-    println!("{:?}", deserialized);
+    let serialized = serde_json::to_string(&map).unwrap();
+    println!("serialized map: {:?}", serialized);
+
+    let deserialized: HashMap<String, u32> = serde_json::from_str(&serialized).unwrap();
+    println!("deserialized map: {:?}", deserialized);
+
+    // It also can handle complex objects:
+    let value = ObjectBuilder::new()
+        .insert("int", 1)
+        .insert("string", "a string")
+        .insert("array", ArrayBuilder::new()
+                .push(1)
+                .push(2)
+                .unwrap())
+        .unwrap();
+
+    let serialized = serde_json::to_string(&value).unwrap();
+    println!("serialized value: {:?}", serialized);
+
+    let deserialized: serde_json::Value = serde_json::from_str(&serialized).unwrap();
+    println!("deserialized value: {:?}", deserialized);
 }
 ```
 
-When run, it produces:
+This produces the following output when run:
 
 ```
 % cargo run
-{"x":1,"y":2}
-Point { x: 1, y: 2 }
+serialized vec: "[1,2]"
+deserialized vec: [1, 2]
+serialized map: "{\"y\":2,\"x\":1}"
+deserialized map: {"y": 2, "x": 1}
+serialized value: "{\"array\":[1,2],\"int\":1,\"string\":\"a string\"}"
+deserialized value: {"array":[1,2],"int":1,"string":"a string"}
 ```
 
 Using Serde with Stable Rust and serde\_codegen
 ===============================================
 
-Stable Rust is a little more complicated because it does not yet support
-compiler plugins. Instead we need to use `serde_codegen` which is based on the
-code generation library [syntex](https://github.com/serde-rs/syntex):
+The example before used `serde_json::Value` as the in-memory representation of
+the JSON value, but it's also possible for Serde to serialize to and from
+regular Rust types. However, the code to do this can be a bit complicated to
+write. So instead, Serde also has 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 Stable Rust, which is currently a tad more
+complicated than Nightly Rust due to having to work around compiler plugins
+being unstable.  We will use `serde_codegen` which is based on the code
+generation library [syntex](https://github.com/serde-rs/syntex). First we need
+to setup the `Cargo.toml` that builds the project:
 
 ```toml
 [package]
@@ -96,16 +122,8 @@ serde = "*"
 serde_json = "*"
 ```
 
-`src/main.rs`:
-
-```rust,ignore
-extern crate serde;
-extern crate serde_json;
-
-include!(concat!(env!("OUT_DIR"), "/main.rs"));
-```
-
-`src/main.rs.in`:
+Next, we define our source file, `src/main.rs.in`. Note this is a different
+extension than usual becaues we need to do code generation:
 
 ```rust,ignore
 #[derive(Serialize, Deserialize, Debug)]
@@ -116,17 +134,28 @@ struct Point {
 
 fn main() {
     let point = Point { x: 1, y: 2 };
-    let serialized = serde_json::to_string(&point).unwrap();
 
+    let serialized = serde_json::to_string(&point).unwrap();
     println!("{}", serialized);
 
     let deserialized: Point = serde_json::from_str(&serialized).unwrap();
-
     println!("{:?}", deserialized);
 }
 ```
 
-`build.rs`
+To finish up the main source code, we define a very simple `src/main.rs` that
+uses the generated code.
+
+`src/main.rs`:
+
+```rust,ignore
+extern crate serde;
+extern crate serde_json;
+
+include!(concat!(env!("OUT_DIR"), "/main.rs"));
+```
+
+The last step is to actually drive the code generation, with the `build.rs` script:
 
 ```rust,ignore
 extern crate serde_codegen;
@@ -144,7 +173,7 @@ pub fn main() {
 }
 ```
 
-This also produces:
+All this produces this when run:
 
 ```
 % cargo run
@@ -153,8 +182,63 @@ 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
+currently are reported in the generated file instead of in the source file.
+
+Using Serde with Nightly Rust and serde\_macros
+===============================================
+
+The prior example is a bit more complicated than it needs to be due to compiler
+plugins being unstable. However, if you are already using Nightly Rust, you can
+use `serde_macros`, which has a much simpler interface. First, here is the new
+`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 = "*"
+```
+
+Note that it doesn't need a build script. Now the `src/main.rs`, which enables
+the plugin feature, and registers the `serde_macros` plugin:
+
+```rust
+#![feature(custom_derive, plugin)]
+#![plugin(serde_macros)]
+
+extern crate serde_json;
+
+#[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);
+}
+```
+
+This also produces the same output:
+
+```
+% cargo run
+{"x":1,"y":2}
+Point { x: 1, y: 2 }
+```
+
+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:
 
@@ -740,6 +824,7 @@ Serialization Formats Using Serde
 | Format      | Name                                                 |
 | ------      | ----                                                 |
 | Bincode     | [bincode](https://crates.io/crates/bincode)          |
+| env vars    | [envy](https://crates.io/crates/envy)                |
 | 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)        |

examples/.cargo/config

@@ -1,5 +0,0 @@
-paths = [
-    "../serde",
-    "../serde_codegen",
-    "../serde_macros",
-]

examples/serde-syntex-example/Cargo.toml

@@ -9,9 +9,9 @@ default = ["serde_codegen"]
 nightly = ["serde_macros"]
 
 [build-dependencies]
-serde_codegen = { version = "^0.7.11", optional = true }
+serde_codegen = { version = "^0.7", optional = true }
 
 [dependencies]
-serde = "^0.7.11"
-serde_json = "^0.7.0"
-serde_macros = { version = "^0.7.11", optional = true }
+serde = "^0.7"
+serde_json = "^0.7"
+serde_macros = { version = "^0.7", optional = true }

serde/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde"
-version = "0.7.11"
+version = "0.7.15"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "A generic serialization/deserialization framework"

serde/src/de/mod.rs

@@ -8,6 +8,8 @@ use error;
 #[cfg(all(not(feature = "std"), feature = "collections"))]
 use collections::{String, Vec};
 
+use core::fmt;
+
 pub mod impls;
 pub mod value;
 mod from_primitive;
@@ -169,6 +171,46 @@ pub enum Type {
     Bytes,
 }
 
+impl fmt::Display for Type {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> {
+        let display = match *self {
+            Type::Bool          => "bool",
+            Type::Usize         => "usize",
+            Type::U8            => "u8",
+            Type::U16           => "u16",
+            Type::U32           => "u32",
+            Type::U64           => "u64",
+            Type::Isize         => "isize",
+            Type::I8            => "i8",
+            Type::I16           => "i16",
+            Type::I32           => "i32",
+            Type::I64           => "i64",
+            Type::F32           => "f32",
+            Type::F64           => "f64",
+            Type::Char          => "char",
+            Type::Str           => "str",
+            Type::String        => "string",
+            Type::Unit          => "unit",
+            Type::Option        => "option",
+            Type::Seq           => "seq",
+            Type::Map           => "map",
+            Type::UnitStruct    => "unit struct",
+            Type::NewtypeStruct => "newtype struct",
+            Type::TupleStruct   => "tuple struct",
+            Type::Struct        => "struct",
+            Type::FieldName     => "field name",
+            Type::Tuple         => "tuple",
+            Type::Enum          => "enum",
+            Type::VariantName   => "variant name",
+            Type::StructVariant => "struct variant",
+            Type::TupleVariant  => "tuple variant",
+            Type::UnitVariant   => "unit variant",
+            Type::Bytes         => "bytes",
+        };
+        display.fmt(formatter)
+    }
+}
+
 ///////////////////////////////////////////////////////////////////////////////
 
 /// `Deserialize` represents a type that can be deserialized.

serde_codegen/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde_codegen"
-version = "0.7.11"
+version = "0.7.15"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "Macros to auto-generate implementations for the serde framework"
@@ -18,20 +18,20 @@ with-syntex = [
     "quasi/with-syntex",
     "quasi_codegen",
     "quasi_codegen/with-syntex",
-    "serde_item/with-syntex",
+    "serde_codegen_internals/with-syntex",
     "syntex",
     "syntex_syntax",
 ]
 
 [build-dependencies]
-quasi_codegen = { version = "^0.13.0", optional = true }
-syntex = { version = "^0.36.0", optional = true }
+quasi_codegen = { version = "^0.16.0", optional = true }
+syntex = { version = "^0.39.0", optional = true }
 
 [dependencies]
-aster = { version = "^0.19.0", default-features = false }
+aster = { version = "^0.22.0", default-features = false }
 clippy = { version = "^0.*", optional = true }
-quasi = { version = "^0.13.0", default-features = false }
-quasi_macros = { version = "^0.13.0", optional = true }
-serde_item = { version = "^0.2.0", path = "../serde_item", default-features = false }
-syntex = { version = "^0.36.0", optional = true }
-syntex_syntax = { version = "^0.36.0", optional = true }
+quasi = { version = "^0.16.0", default-features = false }
+quasi_macros = { version = "^0.16.0", optional = true }
+serde_codegen_internals = { version = "^0.4.0", default-features = false }
+syntex = { version = "^0.39.0", optional = true }
+syntex_syntax = { version = "^0.39.0", optional = true }

serde_codegen/src/bound.rs

@@ -1,12 +1,11 @@
-use std::collections::HashSet;
-
 use aster::AstBuilder;
 
 use syntax::ast;
 use syntax::ptr::P;
 use syntax::visit;
 
-use item::{attr, Item};
+use internals::ast::Item;
+use internals::attr;
 
 // Remove the default from every type parameter because in the generated impls
 // they look like associated types: "error: associated type bindings are not
@@ -62,8 +61,6 @@ pub fn with_bound<F>(
             item.body.all_fields()
                 .filter(|&field| filter(&field.attrs))
                 .map(|field| &field.ty)
-                // TODO this filter can be removed later, see comment on function
-                .filter(|ty| contains_generic(ty, generics))
                 .filter(|ty| !contains_recursion(ty, item.ident))
                 .map(|ty| strip_reference(ty))
                 .map(|ty| builder.where_predicate()
@@ -75,44 +72,6 @@ pub fn with_bound<F>(
         .build()
 }
 
-// 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
-}
-
 // We do not attempt to generate any bounds based on field types that are
 // directly recursive, as in:
 //
@@ -137,8 +96,8 @@ fn contains_recursion(ty: &ast::Ty, ident: ast::Ident) -> bool {
         ident: ast::Ident,
         found_recursion: bool,
     }
-    impl<'v> visit::Visitor<'v> for FindRecursion {
-        fn visit_path(&mut self, path: &'v ast::Path, _id: ast::NodeId) {
+    impl visit::Visitor for FindRecursion {
+        fn visit_path(&mut self, path: &ast::Path, _id: ast::NodeId) {
             if !path.global
                     && path.segments.len() == 1
                     && path.segments[0].identifier == self.ident {

serde_codegen/src/de.rs

@@ -5,10 +5,12 @@ use syntax::codemap::Span;
 use syntax::ext::base::{Annotatable, ExtCtxt};
 use syntax::parse::token::InternedString;
 use syntax::ptr::P;
+use syntax::tokenstream::TokenTree;
 
 use bound;
-use error::Error;
-use item::{self, attr};
+use span;
+use internals::ast::{Body, Field, Item, Style, Variant};
+use internals::{attr, Error};
 
 pub fn expand_derive_deserialize(
     cx: &mut ExtCtxt,
@@ -27,9 +29,9 @@ pub fn expand_derive_deserialize(
         }
     };
 
-    let item = match item::Item::from_ast(cx, item) {
+    let item = match Item::from_ast(cx, item) {
         Ok(item) => item,
-        Err(item::Error::UnexpectedItemKind) => {
+        Err(Error::UnexpectedItemKind) => {
             cx.span_err(item.span,
                 "`#[derive(Deserialize)]` may only be applied to structs and enums");
             return;
@@ -43,13 +45,13 @@ pub fn expand_derive_deserialize(
     let builder = aster::AstBuilder::new().span(span);
 
     let impl_item = deserialize_item(cx, &builder, &item);
-    push(Annotatable::Item(impl_item))
+    push(span::record_expansion(cx, impl_item, "Deserialize"))
 }
 
 fn deserialize_item(
     cx: &ExtCtxt,
     builder: &aster::AstBuilder,
-    item: &item::Item,
+    item: &Item,
 ) -> P<ast::Item> {
     let impl_generics = build_impl_generics(builder, &item);
 
@@ -88,7 +90,7 @@ fn deserialize_item(
 // each generic field type that will be set to a default value.
 fn build_impl_generics(
     builder: &aster::AstBuilder,
-    item: &item::Item,
+    item: &Item,
 ) -> ast::Generics {
     let generics = bound::without_defaults(item.generics);
 
@@ -131,12 +133,12 @@ fn requires_default(attrs: &attr::Field) -> bool {
 fn deserialize_body(
     cx: &ExtCtxt,
     builder: &aster::AstBuilder,
-    item: &item::Item,
+    item: &Item,
     impl_generics: &ast::Generics,
     ty: P<ast::Ty>,
 ) -> P<ast::Expr> {
     match item.body {
-        item::Body::Enum(ref variants) => {
+        Body::Enum(ref variants) => {
             deserialize_item_enum(
                 cx,
                 builder,
@@ -146,7 +148,7 @@ fn deserialize_body(
                 variants,
                 &item.attrs)
         }
-        item::Body::Struct(item::Style::Struct, ref fields) => {
+        Body::Struct(Style::Struct, ref fields) => {
             if fields.iter().any(|field| field.ident.is_none()) {
                 cx.span_bug(item.span, "struct has unnamed fields")
             }
@@ -161,8 +163,8 @@ fn deserialize_body(
                 fields,
                 &item.attrs)
         }
-        item::Body::Struct(item::Style::Tuple, ref fields) |
-        item::Body::Struct(item::Style::Newtype, ref fields) => {
+        Body::Struct(Style::Tuple, ref fields) |
+        Body::Struct(Style::Newtype, ref fields) => {
             if fields.iter().any(|field| field.ident.is_some()) {
                 cx.span_bug(item.span, "tuple struct has named fields")
             }
@@ -177,7 +179,7 @@ fn deserialize_body(
                 fields,
                 &item.attrs)
         }
-        item::Body::Struct(item::Style::Unit, _) => {
+        Body::Struct(Style::Unit, _) => {
             deserialize_unit_struct(
                 cx,
                 builder,
@@ -308,7 +310,7 @@ fn deserialize_tuple(
     variant_ident: Option<Ident>,
     impl_generics: &ast::Generics,
     ty: P<ast::Ty>,
-    fields: &[item::Field],
+    fields: &[Field],
     item_attrs: &attr::Item,
 ) -> P<ast::Expr> {
     let where_clause = &impl_generics.where_clause;
@@ -390,9 +392,10 @@ fn deserialize_seq(
     type_ident: Ident,
     type_path: ast::Path,
     impl_generics: &ast::Generics,
-    fields: &[item::Field],
+    fields: &[Field],
     is_struct: bool,
 ) -> P<ast::Expr> {
+    let mut index_in_seq = 0usize;
     let let_values: Vec<_> = fields.iter()
         .enumerate()
         .map(|(i, field)| {
@@ -418,14 +421,17 @@ fn deserialize_seq(
                         })
                     }
                 };
-                quote_stmt!(cx,
+                let assign = quote_stmt!(cx,
                     let $name = match $visit {
                         Some(value) => { value },
                         None => {
-                            return Err(_serde::de::Error::end_of_stream());
+                            try!(visitor.end());
+                            return Err(_serde::de::Error::invalid_length($index_in_seq));
                         }
                     };
-                ).unwrap()
+                ).unwrap();
+                index_in_seq += 1;
+                assign
             }
         })
         .collect();
@@ -470,8 +476,8 @@ fn deserialize_newtype_struct(
     type_ident: Ident,
     type_path: &ast::Path,
     impl_generics: &ast::Generics,
-    field: &item::Field,
-) -> Vec<ast::TokenTree> {
+    field: &Field,
+) -> Vec<TokenTree> {
     let value = match field.attrs.deserialize_with() {
         None => {
             let field_ty = &field.ty;
@@ -505,7 +511,7 @@ fn deserialize_struct(
     variant_ident: Option<Ident>,
     impl_generics: &ast::Generics,
     ty: P<ast::Ty>,
-    fields: &[item::Field],
+    fields: &[Field],
     item_attrs: &attr::Item,
 ) -> P<ast::Expr> {
     let where_clause = &impl_generics.where_clause;
@@ -587,7 +593,7 @@ fn deserialize_item_enum(
     type_ident: Ident,
     impl_generics: &ast::Generics,
     ty: P<ast::Ty>,
-    variants: &[item::Variant],
+    variants: &[Variant],
     item_attrs: &attr::Item
 ) -> P<ast::Expr> {
     let where_clause = &impl_generics.where_clause;
@@ -678,19 +684,19 @@ fn deserialize_variant(
     type_ident: Ident,
     generics: &ast::Generics,
     ty: P<ast::Ty>,
-    variant: &item::Variant,
+    variant: &Variant,
     item_attrs: &attr::Item,
 ) -> P<ast::Expr> {
     let variant_ident = variant.ident;
 
     match variant.style {
-        item::Style::Unit => {
+        Style::Unit => {
             quote_expr!(cx, {
                 try!(visitor.visit_unit());
                 Ok($type_ident::$variant_ident)
             })
         }
-        item::Style::Newtype => {
+        Style::Newtype => {
             deserialize_newtype_variant(
                 cx,
                 builder,
@@ -700,7 +706,7 @@ fn deserialize_variant(
                 &variant.fields[0],
             )
         }
-        item::Style::Tuple => {
+        Style::Tuple => {
             deserialize_tuple(
                 cx,
                 builder,
@@ -712,7 +718,7 @@ fn deserialize_variant(
                 item_attrs,
             )
         }
-        item::Style::Struct => {
+        Style::Struct => {
             deserialize_struct(
                 cx,
                 builder,
@@ -733,7 +739,7 @@ fn deserialize_newtype_variant(
     type_ident: Ident,
     variant_ident: Ident,
     impl_generics: &ast::Generics,
-    field: &item::Field,
+    field: &Field,
 ) -> P<ast::Expr> {
     let visit = match field.attrs.deserialize_with() {
         None => {
@@ -919,7 +925,7 @@ fn deserialize_struct_visitor(
     type_ident: Ident,
     struct_path: ast::Path,
     impl_generics: &ast::Generics,
-    fields: &[item::Field],
+    fields: &[Field],
     item_attrs: &attr::Item,
 ) -> (Vec<P<ast::Item>>, ast::Stmt, P<ast::Expr>) {
     let field_exprs = fields.iter()
@@ -971,7 +977,7 @@ fn deserialize_map(
     type_ident: Ident,
     struct_path: ast::Path,
     impl_generics: &ast::Generics,
-    fields: &[item::Field],
+    fields: &[Field],
     item_attrs: &attr::Item,
 ) -> P<ast::Expr> {
     // Create the field names for the fields.
@@ -1091,10 +1097,10 @@ fn deserialize_map(
             }
         }
 
-        $extract_values
-
         try!(visitor.end());
 
+        $extract_values
+
         Ok($result)
     })
 }
@@ -1187,14 +1193,14 @@ fn name_expr(
 
 fn check_no_str(
     cx: &ExtCtxt,
-    item: &item::Item,
-) -> Result<(), Error> {
-    let fail = |field: &item::Field| {
+    item: &Item,
+) -> Result<(), ()> {
+    let fail = |field: &Field| {
         cx.span_err(
             field.span,
             "Serde does not support deserializing fields of type &str; \
              consider using String instead");
-        Err(Error)
+        Err(())
     };
 
     for field in item.body.all_fields() {

serde_codegen/src/error.rs

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

serde_codegen/src/lib.rs

@@ -7,7 +7,7 @@
 
 extern crate aster;
 extern crate quasi;
-extern crate serde_item as item;
+extern crate serde_codegen_internals as internals;
 
 #[cfg(feature = "with-syntex")]
 extern crate syntex;

serde_codegen/src/lib.rs.in

@@ -1,4 +1,4 @@
 mod bound;
 mod de;
-mod error;
 mod ser;
+mod span;

serde_codegen/src/ser.rs

@@ -6,7 +6,9 @@ use syntax::ext::base::{Annotatable, ExtCtxt};
 use syntax::ptr::P;
 
 use bound;
-use item::{self, attr};
+use span;
+use internals::ast::{Body, Field, Item, Style, Variant};
+use internals::{attr, Error};
 
 pub fn expand_derive_serialize(
     cx: &mut ExtCtxt,
@@ -25,9 +27,9 @@ pub fn expand_derive_serialize(
         }
     };
 
-    let item = match item::Item::from_ast(cx, item) {
+    let item = match Item::from_ast(cx, item) {
         Ok(item) => item,
-        Err(item::Error::UnexpectedItemKind) => {
+        Err(Error::UnexpectedItemKind) => {
             cx.span_err(item.span,
                 "`#[derive(Serialize)]` may only be applied to structs and enums");
             return;
@@ -37,13 +39,13 @@ pub fn expand_derive_serialize(
     let builder = aster::AstBuilder::new().span(span);
 
     let impl_item = serialize_item(cx, &builder, &item);
-    push(Annotatable::Item(impl_item))
+    push(span::record_expansion(cx, impl_item, "Serialize"))
 }
 
 fn serialize_item(
     cx: &ExtCtxt,
     builder: &aster::AstBuilder,
-    item: &item::Item,
+    item: &Item,
 ) -> P<ast::Item> {
     let impl_generics = build_impl_generics(builder, &item);
 
@@ -81,7 +83,7 @@ fn serialize_item(
 // field type that will be serialized by us.
 fn build_impl_generics(
     builder: &aster::AstBuilder,
-    item: &item::Item,
+    item: &Item,
 ) -> ast::Generics {
     let generics = bound::without_defaults(item.generics);
 
@@ -114,12 +116,12 @@ fn needs_serialize_bound(attrs: &attr::Field) -> bool {
 fn serialize_body(
     cx: &ExtCtxt,
     builder: &aster::AstBuilder,
-    item: &item::Item,
+    item: &Item,
     impl_generics: &ast::Generics,
     ty: P<ast::Ty>,
 ) -> P<ast::Expr> {
     match item.body {
-        item::Body::Enum(ref variants) => {
+        Body::Enum(ref variants) => {
             serialize_item_enum(
                 cx,
                 builder,
@@ -129,7 +131,7 @@ fn serialize_body(
                 variants,
                 &item.attrs)
         }
-        item::Body::Struct(item::Style::Struct, ref fields) => {
+        Body::Struct(Style::Struct, ref fields) => {
             if fields.iter().any(|field| field.ident.is_none()) {
                 cx.span_bug(item.span, "struct has unnamed fields")
             }
@@ -142,7 +144,7 @@ fn serialize_body(
                 fields,
                 &item.attrs)
         }
-        item::Body::Struct(item::Style::Tuple, ref fields) => {
+        Body::Struct(Style::Tuple, ref fields) => {
             if fields.iter().any(|field| field.ident.is_some()) {
                 cx.span_bug(item.span, "tuple struct has named fields")
             }
@@ -155,7 +157,7 @@ fn serialize_body(
                 fields,
                 &item.attrs)
         }
-        item::Body::Struct(item::Style::Newtype, ref fields) => {
+        Body::Struct(Style::Newtype, ref fields) => {
             serialize_newtype_struct(
                 cx,
                 builder,
@@ -164,7 +166,7 @@ fn serialize_body(
                 &fields[0],
                 &item.attrs)
         }
-        item::Body::Struct(item::Style::Unit, _) => {
+        Body::Struct(Style::Unit, _) => {
             serialize_unit_struct(
                 cx,
                 builder,
@@ -190,7 +192,7 @@ fn serialize_newtype_struct(
     builder: &aster::AstBuilder,
     impl_generics: &ast::Generics,
     item_ty: P<ast::Ty>,
-    field: &item::Field,
+    field: &Field,
     item_attrs: &attr::Item,
 ) -> P<ast::Expr> {
     let type_name = name_expr(builder, item_attrs.name());
@@ -211,7 +213,7 @@ fn serialize_tuple_struct(
     builder: &aster::AstBuilder,
     impl_generics: &ast::Generics,
     ty: P<ast::Ty>,
-    fields: &[item::Field],
+    fields: &[Field],
     item_attrs: &attr::Item,
 ) -> P<ast::Expr> {
     let (visitor_struct, visitor_impl) = serialize_tuple_struct_visitor(
@@ -246,7 +248,7 @@ fn serialize_struct(
     builder: &aster::AstBuilder,
     impl_generics: &ast::Generics,
     ty: P<ast::Ty>,
-    fields: &[item::Field],
+    fields: &[Field],
     item_attrs: &attr::Item,
 ) -> P<ast::Expr> {
     let (visitor_struct, visitor_impl) = serialize_struct_visitor(
@@ -282,7 +284,7 @@ fn serialize_item_enum(
     type_ident: Ident,
     impl_generics: &ast::Generics,
     ty: P<ast::Ty>,
-    variants: &[item::Variant],
+    variants: &[Variant],
     item_attrs: &attr::Item,
 ) -> P<ast::Expr> {
     let arms: Vec<_> =
@@ -315,7 +317,7 @@ fn serialize_variant(
     type_ident: Ident,
     generics: &ast::Generics,
     ty: P<ast::Ty>,
-    variant: &item::Variant,
+    variant: &Variant,
     variant_index: usize,
     item_attrs: &attr::Item,
 ) -> ast::Arm {
@@ -325,7 +327,7 @@ fn serialize_variant(
     let variant_name = name_expr(builder, variant.attrs.name());
 
     match variant.style {
-        item::Style::Unit => {
+        Style::Unit => {
             quote_arm!(cx,
                 $type_ident::$variant_ident => {
                     _serde::ser::Serializer::serialize_unit_variant(
@@ -337,7 +339,7 @@ fn serialize_variant(
                 }
             )
         },
-        item::Style::Newtype => {
+        Style::Newtype => {
             let expr = serialize_newtype_variant(
                 cx,
                 builder,
@@ -353,7 +355,7 @@ fn serialize_variant(
                 $type_ident::$variant_ident(ref __simple_value) => { $expr }
             )
         },
-        item::Style::Tuple => {
+        Style::Tuple => {
             let field_names: Vec<ast::Ident> = (0 .. variant.fields.len())
                 .map(|i| builder.id(format!("__field{}", i)))
                 .collect();
@@ -382,7 +384,7 @@ fn serialize_variant(
                 $pat => { $expr }
             )
         }
-        item::Style::Struct => {
+        Style::Struct => {
             let field_names: Vec<_> = (0 .. variant.fields.len())
                 .map(|i| builder.id(format!("__field{}", i)))
                 .collect();
@@ -432,7 +434,7 @@ fn serialize_newtype_variant(
     variant_name: P<ast::Expr>,
     item_ty: P<ast::Ty>,
     generics: &ast::Generics,
-    field: &item::Field,
+    field: &Field,
 ) -> P<ast::Expr> {
     let mut field_expr = quote_expr!(cx, __simple_value);
     if let Some(path) = field.attrs.serialize_with() {
@@ -459,7 +461,7 @@ fn serialize_tuple_variant(
     variant_name: P<ast::Expr>,
     generics: &ast::Generics,
     structure_ty: P<ast::Ty>,
-    fields: &[item::Field],
+    fields: &[Field],
     field_names: Vec<Ident>,
 ) -> P<ast::Expr> {
     let variant_ty = builder.ty().tuple()
@@ -510,7 +512,7 @@ fn serialize_struct_variant(
     variant_name: P<ast::Expr>,
     generics: &ast::Generics,
     ty: P<ast::Ty>,
-    fields: &[item::Field],
+    fields: &[Field],
     field_names: Vec<Ident>,
     item_attrs: &attr::Item,
 ) -> P<ast::Expr> {
@@ -597,7 +599,7 @@ fn serialize_tuple_struct_visitor(
     structure_ty: P<ast::Ty>,
     variant_ty: P<ast::Ty>,
     serializer_method: ast::Ident,
-    fields: &[item::Field],
+    fields: &[Field],
     generics: &ast::Generics,
     is_enum: bool,
 ) -> (P<ast::Item>, P<ast::Item>) {
@@ -678,7 +680,7 @@ fn serialize_struct_visitor(
     structure_ty: P<ast::Ty>,
     variant_ty: P<ast::Ty>,
     serializer_method: ast::Ident,
-    fields: &[item::Field],
+    fields: &[Field],
     generics: &ast::Generics,
     is_enum: bool,
 ) -> (P<ast::Item>, P<ast::Item>) {

serde_codegen/src/span.rs

@@ -0,0 +1,43 @@
+use syntax::ast;
+use syntax::codemap::{self, ExpnId, Span};
+use syntax::ext::base::{Annotatable, ExtCtxt};
+use syntax::fold::{self, Folder};
+use syntax::parse::token::intern;
+use syntax::ptr::P;
+
+pub fn record_expansion(
+    cx: &ExtCtxt,
+    item: P<ast::Item>,
+    derive: &str,
+) -> Annotatable {
+    let info = codemap::ExpnInfo {
+        call_site: codemap::DUMMY_SP,
+        callee: codemap::NameAndSpan {
+            format: codemap::MacroAttribute(intern(&format!("derive({})", derive))),
+            span: None,
+            allow_internal_unstable: false,
+        },
+    };
+    let expn_id = cx.codemap().record_expansion(info);
+
+    let mut respanner = Respanner { expn_id: expn_id };
+    let item = item.map(|item| respanner.fold_item_simple(item));
+    Annotatable::Item(item)
+}
+
+struct Respanner {
+    expn_id: ExpnId,
+}
+
+impl Folder for Respanner {
+    fn new_span(&mut self, span: Span) -> Span {
+        Span {
+            expn_id: self.expn_id,
+            .. span
+        }
+    }
+
+    fn fold_mac(&mut self, mac: ast::Mac) -> ast::Mac {
+        fold::noop_fold_mac(mac, self)
+    }
+}

serde_codegen_internals/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
-name = "serde_item"
-version = "0.2.0"
+name = "serde_codegen_internals"
+version = "0.4.0"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "AST representation used by Serde codegen. Unstable."
@@ -12,8 +12,9 @@ include = ["Cargo.toml", "src/**/*.rs"]
 [features]
 default = ["with-syntex"]
 nightly-testing = ["clippy"]
-with-syntex = ["syntex_syntax"]
+with-syntex = ["syntex_syntax", "syntex_errors"]
 
 [dependencies]
 clippy = { version = "^0.*", optional = true }
-syntex_syntax = { version = "^0.36.0", optional = true }
+syntex_syntax = { version = "^0.39.0", optional = true }
+syntex_errors = { version = "^0.39.0", optional = true }

serde_codegen_internals/src/ast.rs

@@ -1,24 +1,10 @@
-#![cfg_attr(feature = "nightly-testing", plugin(clippy))]
-#![cfg_attr(feature = "nightly-testing", feature(plugin))]
-#![cfg_attr(not(feature = "with-syntex"), feature(rustc_private, plugin))]
-
-#[cfg(feature = "with-syntex")]
-#[macro_use]
-extern crate syntex_syntax as syntax;
-
-#[cfg(not(feature = "with-syntex"))]
-#[macro_use]
-extern crate syntax;
-
 use syntax::ast;
 use syntax::codemap;
 use syntax::ext::base::ExtCtxt;
 use syntax::ptr::P;
 
-pub mod attr;
-
-mod error;
-pub use error::Error;
+use attr;
+use Error;
 
 pub struct Item<'a> {
     pub ident: ast::Ident,

serde_codegen_internals/src/attr.rs

@@ -1,7 +1,7 @@
 use std::rc::Rc;
 
-use syntax::ast::{self, TokenTree};
-use syntax::attr;
+use syntax::ast;
+use syntax::attr::{self, HasAttrs};
 use syntax::codemap::{Span, Spanned, respan};
 use syntax::ext::base::ExtCtxt;
 use syntax::fold::Folder;
@@ -10,6 +10,7 @@ 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 syntax::tokenstream::{self, TokenTree};
 
 // This module handles parsing of `#[serde(...)]` attributes. The entrypoints
 // are `attr::Item::from_ast`, `attr::Variant::from_ast`, and
@@ -529,7 +530,7 @@ impl<'a, 'b> Folder for Respanner<'a, 'b> {
             TokenTree::Delimited(span, ref delimed) => {
                 TokenTree::Delimited(
                     self.new_span(span),
-                    Rc::new(ast::Delimited {
+                    Rc::new(tokenstream::Delimited {
                         delim: delimed.delim,
                         open_span: delimed.open_span,
                         tts: self.fold_tts(&delimed.tts),
@@ -540,7 +541,7 @@ impl<'a, 'b> Folder for Respanner<'a, 'b> {
             TokenTree::Sequence(span, ref seq) => {
                 TokenTree::Sequence(
                     self.new_span(span),
-                    Rc::new(ast::SequenceRepetition {
+                    Rc::new(tokenstream::SequenceRepetition {
                         tts: self.fold_tts(&seq.tts),
                         separator: seq.separator.clone().map(|tok| self.fold_token(tok)),
                         ..**seq

serde_codegen_internals/src/lib.rs

@@ -0,0 +1,21 @@
+#![cfg_attr(feature = "nightly-testing", plugin(clippy))]
+#![cfg_attr(feature = "nightly-testing", feature(plugin))]
+#![cfg_attr(not(feature = "with-syntex"), feature(rustc_private, plugin))]
+
+#[cfg(feature = "with-syntex")]
+#[macro_use]
+extern crate syntex_syntax as syntax;
+#[cfg(feature = "with-syntex")]
+extern crate syntex_errors as errors;
+
+#[cfg(not(feature = "with-syntex"))]
+#[macro_use]
+extern crate syntax;
+#[cfg(not(feature = "with-syntex"))]
+extern crate rustc_errors as errors;
+
+pub mod ast;
+pub mod attr;
+
+mod error;
+pub use error::Error;

serde_macros/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde_macros"
-version = "0.7.11"
+version = "0.7.15"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "Macros to auto-generate implementations for the serde framework"
@@ -18,13 +18,15 @@ nightly-testing = ["clippy", "serde/nightly-testing", "serde_codegen/nightly-tes
 
 [dependencies]
 clippy = { version = "^0.*", optional = true }
-serde_codegen = { version = "^0.7.11", path = "../serde_codegen", default-features = false, features = ["nightly"] }
+serde_codegen = { version = "^0.7.15", default-features = false, features = ["nightly"] }
 
 [dev-dependencies]
+clippy = "^0.0.79"
 compiletest_rs = "^0.2.0"
 fnv = "1.0"
 rustc-serialize = "^0.3.16"
-serde = { version = "^0.7.11", path = "../serde" }
+serde = "0.7.15"
+serde_test = "0.7.15"
 
 [[test]]
 name = "test"

serde_macros/benches/bench.rs

@@ -6,4 +6,4 @@ extern crate rustc_serialize;
 extern crate serde;
 extern crate test;
 
-include!("../../serde_tests/benches/bench.rs.in");
+include!("../../testing/benches/bench.rs.in");

serde_macros/tests/compile_tests.rs

@@ -20,6 +20,11 @@ fn run_mode(mode: &'static str) {
 }
 
 #[test]
-fn compile_test() {
+fn compile_fail() {
     run_mode("compile-fail");
 }
+
+#[test]
+fn run_pass() {
+    run_mode("run-pass");
+}

serde_macros/tests/run-pass/identity-op.rs

@@ -0,0 +1,12 @@
+#![feature(custom_derive, plugin)]
+#![plugin(serde_macros, clippy)]
+
+#![deny(identity_op)]
+
+// The derived implementation uses 0+1 to add up the number of fields
+// serialized, which Clippy warns about. If the expansion info is registered
+// correctly, the Clippy lint is not triggered.
+#[derive(Serialize)]
+struct A { b: u8 }
+
+fn main() {}

serde_macros/tests/test.rs

@@ -4,6 +4,6 @@
 extern crate serde;
 extern crate test;
 
-include!("../../serde_tests/tests/test.rs.in");
+include!("../../testing/tests/test.rs.in");
 
 mod compile_tests;

serde_test/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "serde_test"
+version = "0.7.15"
+authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
+license = "MIT/Apache-2.0"
+description = "Token De/Serializer for testing De/Serialize implementations"
+repository = "https://github.com/serde-rs/serde"
+documentation = "https://serde-rs.github.io/serde/serde/"
+readme = "../README.md"
+keywords = ["serde", "serialization"]
+include = ["Cargo.toml", "src/**/*.rs"]
+
+[dependencies]
+serde = "0.7.15"

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/error.rs

@@ -0,0 +1,87 @@
+use std::{error, fmt};
+
+use serde::{ser, de};
+
+use token::Token;
+
+#[derive(Clone, PartialEq, Debug)]
+pub enum Error {
+    // Shared
+    Custom(String),
+    InvalidValue(String),
+
+    // De
+    EndOfStream,
+    InvalidType(de::Type),
+    InvalidLength(usize),
+    UnknownVariant(String),
+    UnknownField(String),
+    MissingField(&'static str),
+    DuplicateField(&'static str),
+    InvalidName(&'static str),
+    UnexpectedToken(Token<'static>),
+}
+
+impl ser::Error for Error {
+    fn custom<T: Into<String>>(msg: T) -> Error {
+        Error::Custom(msg.into())
+    }
+
+    fn invalid_value(msg: &str) -> Error {
+        Error::InvalidValue(msg.to_owned())
+    }
+}
+
+impl de::Error for Error {
+    fn custom<T: Into<String>>(msg: T) -> Error {
+        Error::Custom(msg.into())
+    }
+
+    fn end_of_stream() -> Error {
+        Error::EndOfStream
+    }
+
+    fn invalid_type(ty: de::Type) -> Error {
+        Error::InvalidType(ty)
+    }
+
+    fn invalid_value(msg: &str) -> Error {
+        Error::InvalidValue(msg.to_owned())
+    }
+
+    fn invalid_length(len: usize) -> Error {
+        Error::InvalidLength(len)
+    }
+
+    fn unknown_variant(variant: &str) -> Error {
+        Error::UnknownVariant(variant.to_owned())
+    }
+
+    fn unknown_field(field: &str) -> Error {
+        Error::UnknownField(field.to_owned())
+    }
+
+    fn missing_field(field: &'static str) -> Error {
+        Error::MissingField(field)
+    }
+
+    fn duplicate_field(field: &'static str) -> Error {
+        Error::DuplicateField(field)
+    }
+}
+
+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 Error"
+    }
+
+    fn cause(&self) -> Option<&error::Error> {
+        None
+    }
+}

serde_test/src/lib.rs

@@ -0,0 +1,22 @@
+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 +1,350 @@
+use std::marker::PhantomData;
+
+use serde::ser::{
+    self,
+    MapVisitor,
+    SeqVisitor,
+    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()
+    }
+
+    fn visit_seq<V>(&mut self, mut visitor: V) -> Result<(), Error>
+        where V: SeqVisitor
+    {
+        while let Some(()) = try!(visitor.visit(self)) { }
+
+        assert_eq!(self.tokens.next(), Some(&Token::SeqEnd));
+
+        Ok(())
+    }
+
+    fn visit_map<V>(&mut self, mut visitor: V) -> Result<(), Error>
+        where V: MapVisitor
+    {
+        while let Some(()) = try!(visitor.visit(self)) { }
+
+        assert_eq!(self.tokens.next(), Some(&Token::MapEnd));
+
+        Ok(())
+    }
+}
+
+impl<'a, I> ser::Serializer for Serializer<'a, I>
+    where I: Iterator<Item=&'a Token<'a>>,
+{
+    type Error = Error;
+
+    fn serialize_unit(&mut self) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Unit));
+        Ok(())
+    }
+
+    fn serialize_newtype_variant<T>(&mut 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_unit_struct(&mut self, name: &str) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::UnitStruct(name)));
+        Ok(())
+    }
+
+    fn serialize_unit_variant(&mut self,
+                          name: &str,
+                          _variant_index: usize,
+                          variant: &str) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::EnumUnit(name, variant)));
+
+        Ok(())
+    }
+
+    fn serialize_bool(&mut self, v: bool) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Bool(v)));
+        Ok(())
+    }
+
+    fn serialize_isize(&mut self, v: isize) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Isize(v)));
+        Ok(())
+    }
+
+    fn serialize_i8(&mut self, v: i8) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::I8(v)));
+        Ok(())
+    }
+
+    fn serialize_i16(&mut self, v: i16) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::I16(v)));
+        Ok(())
+    }
+
+    fn serialize_i32(&mut self, v: i32) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::I32(v)));
+        Ok(())
+    }
+
+    fn serialize_i64(&mut self, v: i64) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::I64(v)));
+        Ok(())
+    }
+
+    fn serialize_usize(&mut self, v: usize) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Usize(v)));
+        Ok(())
+    }
+
+    fn serialize_u8(&mut self, v: u8) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::U8(v)));
+        Ok(())
+    }
+
+    fn serialize_u16(&mut self, v: u16) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::U16(v)));
+        Ok(())
+    }
+
+    fn serialize_u32(&mut self, v: u32) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::U32(v)));
+        Ok(())
+    }
+
+    fn serialize_u64(&mut self, v: u64) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::U64(v)));
+        Ok(())
+    }
+
+    fn serialize_f32(&mut self, v: f32) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::F32(v)));
+        Ok(())
+    }
+
+    fn serialize_f64(&mut self, v: f64) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::F64(v)));
+        Ok(())
+    }
+
+    fn serialize_char(&mut self, v: char) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Char(v)));
+        Ok(())
+    }
+
+    fn serialize_str(&mut self, v: &str) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Str(v)));
+        Ok(())
+    }
+
+    fn serialize_none(&mut self) -> Result<(), Error> {
+        assert_eq!(self.tokens.next(), Some(&Token::Option(false)));
+        Ok(())
+    }
+
+    fn serialize_some<V>(&mut self, value: V) -> Result<(), Error>
+        where V: Serialize,
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::Option(true)));
+        value.serialize(self)
+    }
+
+
+    fn serialize_seq<V>(&mut self, visitor: V) -> Result<(), Error>
+        where V: SeqVisitor
+    {
+        let len = visitor.len();
+
+        assert_eq!(self.tokens.next(), Some(&Token::SeqStart(len)));
+
+        self.visit_seq(visitor)
+    }
+
+    fn serialize_fixed_size_array<V>(&mut self, visitor: V) -> Result<(), Error>
+        where V: SeqVisitor
+    {
+        let len = visitor.len().expect("arrays must have a length");
+
+        assert_eq!(self.tokens.next(), Some(&Token::SeqArrayStart(len)));
+
+        self.visit_seq(visitor)
+    }
+
+    fn serialize_seq_elt<T>(&mut self, value: T) -> Result<(), Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::SeqSep));
+        value.serialize(self)
+    }
+
+    fn serialize_tuple<V>(&mut self, mut visitor: V) -> Result<(), Error>
+        where V: SeqVisitor
+    {
+        let len = visitor.len().expect("arrays must have a length");
+
+        assert_eq!(self.tokens.next(), Some(&Token::TupleStart(len)));
+
+        while let Some(()) = try!(visitor.visit(self)) { }
+
+        assert_eq!(self.tokens.next(), Some(&Token::TupleEnd));
+
+        Ok(())
+    }
+
+    fn serialize_tuple_elt<T>(&mut self, value: T) -> Result<(), Error>
+        where T: Serialize
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::TupleSep));
+        value.serialize(self)
+    }
+
+    fn serialize_newtype_struct<T>(&mut 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_tuple_struct<V>(&mut self, name: &str, mut visitor: V) -> Result<(), Error>
+        where V: SeqVisitor
+    {
+        let len = visitor.len();
+
+        assert_eq!(self.tokens.next(), Some(&Token::TupleStructStart(name, len)));
+
+        while let Some(()) = try!(visitor.visit(self)) { }
+
+        assert_eq!(self.tokens.next(), Some(&Token::TupleStructEnd));
+
+        Ok(())
+    }
+
+    fn serialize_tuple_struct_elt<T>(&mut self, value: T) -> Result<(), Error>
+        where T: Serialize,
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::TupleStructSep));
+        value.serialize(self)
+    }
+
+    fn serialize_tuple_variant<V>(&mut self,
+                                  name: &str,
+                                  _variant_index: usize,
+                                  variant: &str,
+                                  mut visitor: V) -> Result<(), Error>
+        where V: SeqVisitor
+    {
+        let len = visitor.len();
+
+        assert_eq!(self.tokens.next(), Some(&Token::EnumSeqStart(name, variant, len)));
+
+        while let Some(()) = try!(visitor.visit(self)) { }
+
+        assert_eq!(self.tokens.next(), Some(&Token::EnumSeqEnd));
+
+        Ok(())
+    }
+
+    fn serialize_tuple_variant_elt<T>(&mut self, value: T) -> Result<(), Error>
+        where T: Serialize,
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::EnumSeqSep));
+        value.serialize(self)
+    }
+
+    fn serialize_map<V>(&mut self, visitor: V) -> Result<(), Error>
+        where V: MapVisitor
+    {
+        let len = visitor.len();
+
+        assert_eq!(self.tokens.next(), Some(&Token::MapStart(len)));
+
+        self.visit_map(visitor)
+    }
+
+    fn serialize_map_elt<K, V>(&mut self, key: K, value: V) -> Result<(), Error>
+        where K: Serialize,
+              V: Serialize,
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::MapSep));
+
+        try!(key.serialize(self));
+        value.serialize(self)
+    }
+
+    fn serialize_struct<V>(&mut self, name: &str, mut visitor: V) -> Result<(), Error>
+        where V: MapVisitor
+    {
+        let len = visitor.len();
+
+        assert_eq!(self.tokens.next(), Some(&Token::StructStart(name, len)));
+
+        while let Some(()) = try!(visitor.visit(self)) { }
+
+        assert_eq!(self.tokens.next(), Some(&Token::StructEnd));
+
+        Ok(())
+    }
+
+    fn serialize_struct_elt<T>(&mut self, key: &'static str, value: T) -> Result<(), Error>
+        where T: Serialize,
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::StructSep));
+
+        try!(key.serialize(self));
+        value.serialize(self)
+    }
+
+    fn serialize_struct_variant<V>(&mut self,
+                                   name: &str,
+                                   _variant_index: usize,
+                                   variant: &str,
+                                   mut visitor: V) -> Result<(), Error>
+        where V: MapVisitor
+    {
+        let len = visitor.len();
+
+        assert_eq!(self.tokens.next(), Some(&Token::EnumMapStart(name, variant, len)));
+
+        while let Some(()) = try!(visitor.visit(self)) { }
+
+        assert_eq!(self.tokens.next(), Some(&Token::EnumMapEnd));
+
+        Ok(())
+    }
+
+    fn serialize_struct_variant_elt<T>(&mut self, key: &'static str, value: T) -> Result<(), Error>
+        where T: Serialize,
+    {
+        assert_eq!(self.tokens.next(), Some(&Token::EnumMapSep));
+
+        try!(key.serialize(self));
+        value.serialize(self)
+    }
+}

serde_test/src/token.rs

@@ -0,0 +1,60 @@
+#[derive(Clone, PartialEq, Debug)]
+pub enum Token<'a> {
+    Bool(bool),
+    Isize(isize),
+    I8(i8),
+    I16(i16),
+    I32(i32),
+    I64(i64),
+    Usize(usize),
+    U8(u8),
+    U16(u16),
+    U32(u32),
+    U64(u64),
+    F32(f32),
+    F64(f64),
+    Char(char),
+    Str(&'a str),
+    String(String),
+    Bytes(&'a [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, Option<usize>),
+    TupleStructSep,
+    TupleStructEnd,
+
+    MapStart(Option<usize>),
+    MapSep,
+    MapEnd,
+
+    StructStart(&'a str, Option<usize>),
+    StructSep,
+    StructEnd,
+
+    EnumSeqStart(&'a str, &'a str, Option<usize>),
+    EnumSeqSep,
+    EnumSeqEnd,
+
+    EnumMapStart(&'a str, &'a str, Option<usize>),
+    EnumMapSep,
+    EnumMapEnd,
+}

testing/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
-name = "serde_tests"
-version = "0.7.11"
+name = "serde_testing"
+version = "0.7.15"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>"]
 license = "MIT/Apache-2.0"
 description = "A generic serialization/deserialization framework"
@@ -14,12 +14,13 @@ build = "build.rs"
 nightly-testing = ["clippy", "serde/nightly-testing", "serde_codegen/nightly-testing"]
 
 [build-dependencies]
-serde_codegen = { version = "*", path = "../serde_codegen", features = ["with-syntex"] }
+serde_codegen = { version = "*", features = ["with-syntex"] }
 
 [dev-dependencies]
 fnv = "1.0"
 rustc-serialize = "^0.3.16"
-serde = { version = "*", path = "../serde" }
+serde = "*"
+serde_test = "*"
 
 [dependencies]
 clippy = { version = "^0.*", optional = true }

testing/tests/macros.rs

@@ -5,7 +5,7 @@ macro_rules! declare_ser_tests {
             #[test]
             fn $name() {
                 $(
-                    ::token::assert_ser_tokens(&$value, $tokens);
+                    assert_ser_tokens(&$value, $tokens);
                 )+
             }
         )+

testing/tests/test.rs.in

@@ -1,8 +1,6 @@
 #[macro_use]
 mod macros;
 
-mod token;
-
 mod test_annotations;
 mod test_bytes;
 mod test_de;

testing/tests/test_annotations.rs

@@ -1,7 +1,8 @@
 extern crate serde;
 use self::serde::{Serialize, Serializer, Deserialize, Deserializer};
 
-use token::{
+extern crate serde_test;
+use self::serde_test::{
     Error,
     Token,
     assert_tokens,
@@ -80,7 +81,7 @@ struct DefaultStruct<A, B, C, D, E>
 fn test_default_struct() {
     assert_de_tokens(
         &DefaultStruct { a1: 1, a2: 2, a3: 3, a4: 0, a5: 123 },
-        vec![
+        &[
             Token::StructStart("DefaultStruct", Some(3)),
 
             Token::StructSep,
@@ -109,7 +110,7 @@ fn test_default_struct() {
 
     assert_de_tokens(
         &DefaultStruct { a1: 1, a2: 0, a3: 123, a4: 0, a5: 123 },
-        vec![
+        &[
             Token::StructStart("DefaultStruct", Some(1)),
 
             Token::StructSep,
@@ -143,7 +144,7 @@ enum DefaultEnum<A, B, C, D, E>
 fn test_default_enum() {
     assert_de_tokens(
         &DefaultEnum::Struct { a1: 1, a2: 2, a3: 3, a4: 0, a5: 123 },
-        vec![
+        &[
             Token::EnumMapStart("DefaultEnum", "Struct", Some(5)),
 
             Token::EnumMapSep,
@@ -172,7 +173,7 @@ fn test_default_enum() {
 
     assert_de_tokens(
         &DefaultEnum::Struct { a1: 1, a2: 0, a3: 123, a4: 0, a5: 123 },
-        vec![
+        &[
             Token::EnumMapStart("DefaultEnum", "Struct", Some(5)),
 
             Token::EnumMapSep,
@@ -206,7 +207,7 @@ struct ContainsNoStdDefault<A: MyDefault> {
 fn test_no_std_default() {
     assert_de_tokens(
         &ContainsNoStdDefault { a: NoStdDefault(123) },
-        vec![
+        &[
             Token::StructStart("ContainsNoStdDefault", Some(1)),
             Token::StructEnd,
         ]
@@ -214,7 +215,7 @@ fn test_no_std_default() {
 
     assert_de_tokens(
         &ContainsNoStdDefault { a: NoStdDefault(8) },
-        vec![
+        &[
             Token::StructStart("ContainsNoStdDefault", Some(1)),
 
             Token::StructSep,
@@ -279,7 +280,7 @@ fn test_elt_not_deserialize() {
             c: NotDeserializeStruct(123),
             e: NotDeserializeEnum::Trouble,
         },
-        vec![
+        &[
             Token::StructStart("ContainsNotDeserialize", Some(3)),
             Token::StructEnd,
         ]
@@ -297,7 +298,7 @@ fn test_ignore_unknown() {
     // 'Default' allows unknown. Basic smoke test of ignore...
     assert_de_tokens(
         &DefaultStruct { a1: 1, a2: 2, a3: 3, a4: 0, a5: 123 },
-        vec![
+        &[
             Token::StructStart("DefaultStruct", Some(5)),
 
             Token::StructSep,
@@ -332,7 +333,7 @@ fn test_ignore_unknown() {
     );
 
     assert_de_tokens_error::<DenyUnknown>(
-        vec![
+        &[
             Token::StructStart("DenyUnknown", Some(2)),
 
             Token::StructSep,
@@ -341,11 +342,8 @@ fn test_ignore_unknown() {
 
             Token::StructSep,
             Token::Str("whoops"),
-            Token::I32(2),
-
-            Token::StructEnd,
         ],
-        Error::UnknownFieldError("whoops".to_owned())
+        Error::UnknownField("whoops".to_owned())
     );
 }
 
@@ -369,7 +367,7 @@ struct RenameStructSerializeDeserialize {
 fn test_rename_struct() {
     assert_tokens(
         &RenameStruct { a1: 1, a2: 2 },
-        vec![
+        &[
             Token::StructStart("Superhero", Some(2)),
 
             Token::StructSep,
@@ -403,7 +401,7 @@ fn test_rename_struct() {
 
     assert_de_tokens(
         &RenameStructSerializeDeserialize { a1: 1, a2: 2 },
-        vec![
+        &[
             Token::StructStart("SuperheroDe", Some(2)),
 
             Token::StructSep,
@@ -451,14 +449,14 @@ enum RenameEnumSerializeDeserialize<A> {
 fn test_rename_enum() {
     assert_tokens(
         &RenameEnum::Batman,
-        vec![
+        &[
             Token::EnumUnit("Superhero", "bruce_wayne"),
         ]
     );
 
     assert_tokens(
         &RenameEnum::Superman(0),
-        vec![
+        &[
             Token::EnumNewType("Superhero", "clark_kent"),
             Token::I8(0),
         ]
@@ -466,7 +464,7 @@ fn test_rename_enum() {
 
     assert_tokens(
         &RenameEnum::WonderWoman(0, 1),
-        vec![
+        &[
             Token::EnumSeqStart("Superhero", "diana_prince", Some(2)),
 
             Token::EnumSeqSep,
@@ -481,7 +479,7 @@ fn test_rename_enum() {
 
     assert_tokens(
         &RenameEnum::Flash { a: 1 },
-        vec![
+        &[
             Token::EnumMapStart("Superhero", "barry_allan", Some(1)),
 
             Token::EnumMapSep,
@@ -517,7 +515,7 @@ fn test_rename_enum() {
             a: 0,
             b: String::new(),
         },
-        vec![
+        &[
             Token::EnumMapStart("SuperheroDe", "jason_todd", Some(2)),
 
             Token::EnumMapSep,
@@ -807,7 +805,7 @@ fn test_deserialize_with_struct() {
             a: 1,
             b: 2,
         },
-        vec![
+        &[
             Token::StructStart("DeserializeWithStruct", Some(2)),
 
             Token::StructSep,
@@ -827,7 +825,7 @@ fn test_deserialize_with_struct() {
             a: 1,
             b: 123,
         },
-        vec![
+        &[
             Token::StructStart("DeserializeWithStruct", Some(2)),
 
             Token::StructSep,
@@ -859,7 +857,7 @@ fn test_deserialize_with_enum() {
             a: 1,
             b: 2,
         },
-        vec![
+        &[
             Token::EnumMapStart("DeserializeWithEnum", "Struct", Some(2)),
 
             Token::EnumMapSep,
@@ -879,7 +877,7 @@ fn test_deserialize_with_enum() {
             a: 1,
             b: 123,
         },
-        vec![
+        &[
             Token::EnumMapStart("DeserializeWithEnum", "Struct", Some(2)),
 
             Token::EnumMapSep,
@@ -898,7 +896,7 @@ fn test_deserialize_with_enum() {
 #[test]
 fn test_missing_renamed_field_struct() {
     assert_de_tokens_error::<RenameStruct>(
-        vec![
+        &[
             Token::StructStart("Superhero", Some(2)),
 
             Token::StructSep,
@@ -907,11 +905,11 @@ fn test_missing_renamed_field_struct() {
 
             Token::StructEnd,
         ],
-        Error::MissingFieldError("a3"),
+        Error::MissingField("a3"),
     );
 
     assert_de_tokens_error::<RenameStructSerializeDeserialize>(
-        vec![
+        &[
             Token::StructStart("SuperheroDe", Some(2)),
 
             Token::StructSep,
@@ -920,23 +918,23 @@ fn test_missing_renamed_field_struct() {
 
             Token::StructEnd,
         ],
-        Error::MissingFieldError("a5"),
+        Error::MissingField("a5"),
     );
 }
 
 #[test]
 fn test_missing_renamed_field_enum() {
     assert_de_tokens_error::<RenameEnum>(
-        vec![
+        &[
             Token::EnumMapStart("Superhero", "barry_allan", Some(1)),
 
             Token::EnumMapEnd,
         ],
-        Error::MissingFieldError("b"),
+        Error::MissingField("b"),
     );
 
     assert_de_tokens_error::<RenameEnumSerializeDeserialize<i8>>(
-        vec![
+        &[
             Token::EnumMapStart("SuperheroDe", "jason_todd", Some(2)),
 
             Token::EnumMapSep,
@@ -945,6 +943,34 @@ fn test_missing_renamed_field_enum() {
 
             Token::EnumMapEnd,
         ],
-        Error::MissingFieldError("d"),
+        Error::MissingField("d"),
+    );
+}
+
+#[derive(Debug, PartialEq, Deserialize)]
+enum InvalidLengthEnum {
+    A(i32, i32, i32),
+    B(#[serde(skip_deserializing)] i32, i32, i32),
+}
+
+#[test]
+fn test_invalid_length_enum() {
+    assert_de_tokens_error::<InvalidLengthEnum>(
+        &[
+            Token::EnumSeqStart("InvalidLengthEnum", "A", Some(3)),
+                Token::EnumSeqSep,
+                Token::I32(1),
+            Token::EnumSeqEnd,
+        ],
+        Error::InvalidLength(1),
+    );
+    assert_de_tokens_error::<InvalidLengthEnum>(
+        &[
+            Token::EnumSeqStart("InvalidLengthEnum", "B", Some(3)),
+                Token::EnumSeqSep,
+                Token::I32(1),
+            Token::EnumSeqEnd,
+        ],
+        Error::InvalidLength(1),
     );
 }

testing/tests/test_de.rs

@@ -2,14 +2,17 @@ use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
 use std::net;
 use std::path::PathBuf;
 
+extern crate serde;
+use self::serde::Deserialize;
+
 extern crate fnv;
 use self::fnv::FnvHasher;
 
-use token::{
+extern crate serde_test;
+use self::serde_test::{
     Error,
     Token,
     assert_de_tokens,
-    assert_de_tokens_ignore,
     assert_de_tokens_error,
 };
 
@@ -73,107 +76,147 @@ macro_rules! declare_error_tests {
     }
 }
 
+fn assert_de_tokens_ignore(ignorable_tokens: &[Token<'static>]) {
+    #[derive(PartialEq, Debug, Deserialize)]
+    struct IgnoreBase {
+        a: i32,
+    }
+ 
+    let expected = IgnoreBase{a: 1};
+ 
+    // Embed the tokens to be ignored in the normal token
+    // stream for an IgnoreBase type
+    let concated_tokens : Vec<Token<'static>> = vec![
+            Token::MapStart(Some(2)),
+                Token::MapSep,
+                Token::Str("a"),
+                Token::I32(1),
+ 
+                Token::MapSep,
+                Token::Str("ignored")
+        ]
+        .into_iter()
+        .chain(ignorable_tokens.to_vec().into_iter())
+        .chain(vec![
+            Token::MapEnd,
+        ].into_iter())
+        .collect();
+ 
+    let mut de = serde_test::Deserializer::new(concated_tokens.into_iter());
+    let v: Result<IgnoreBase, Error> = Deserialize::deserialize(&mut de);
+ 
+    // We run this test on every token stream for convenience, but
+    // some token streams don't make sense embedded as a map value,
+    // so we ignore those. SyntaxError is the real sign of trouble.
+    if let Err(Error::UnexpectedToken(_)) = v {
+        return;
+    }
+ 
+    assert_eq!(v.as_ref(), Ok(&expected));
+    assert_eq!(de.next_token(), None);
+}
+
 //////////////////////////////////////////////////////////////////////////
 
 declare_tests! {
     test_bool {
-        true => vec![Token::Bool(true)],
-        false => vec![Token::Bool(false)],
+        true => &[Token::Bool(true)],
+        false => &[Token::Bool(false)],
     }
     test_isize {
-        0isize => vec![Token::Isize(0)],
-        0isize => vec![Token::I8(0)],
-        0isize => vec![Token::I16(0)],
-        0isize => vec![Token::I32(0)],
-        0isize => vec![Token::I64(0)],
-        0isize => vec![Token::Usize(0)],
-        0isize => vec![Token::U8(0)],
-        0isize => vec![Token::U16(0)],
-        0isize => vec![Token::U32(0)],
-        0isize => vec![Token::U64(0)],
-        0isize => vec![Token::F32(0.)],
-        0isize => vec![Token::F64(0.)],
+        0isize => &[Token::Isize(0)],
+        0isize => &[Token::I8(0)],
+        0isize => &[Token::I16(0)],
+        0isize => &[Token::I32(0)],
+        0isize => &[Token::I64(0)],
+        0isize => &[Token::Usize(0)],
+        0isize => &[Token::U8(0)],
+        0isize => &[Token::U16(0)],
+        0isize => &[Token::U32(0)],
+        0isize => &[Token::U64(0)],
+        0isize => &[Token::F32(0.)],
+        0isize => &[Token::F64(0.)],
     }
     test_ints {
-        0isize => vec![Token::Isize(0)],
-        0i8 => vec![Token::I8(0)],
-        0i16 => vec![Token::I16(0)],
-        0i32 => vec![Token::I32(0)],
-        0i64 => vec![Token::I64(0)],
+        0isize => &[Token::Isize(0)],
+        0i8 => &[Token::I8(0)],
+        0i16 => &[Token::I16(0)],
+        0i32 => &[Token::I32(0)],
+        0i64 => &[Token::I64(0)],
     }
     test_uints {
-        0usize => vec![Token::Usize(0)],
-        0u8 => vec![Token::U8(0)],
-        0u16 => vec![Token::U16(0)],
-        0u32 => vec![Token::U32(0)],
-        0u64 => vec![Token::U64(0)],
+        0usize => &[Token::Usize(0)],
+        0u8 => &[Token::U8(0)],
+        0u16 => &[Token::U16(0)],
+        0u32 => &[Token::U32(0)],
+        0u64 => &[Token::U64(0)],
     }
     test_floats {
-        0f32 => vec![Token::F32(0.)],
-        0f64 => vec![Token::F64(0.)],
+        0f32 => &[Token::F32(0.)],
+        0f64 => &[Token::F64(0.)],
     }
     test_char {
-        'a' => vec![Token::Char('a')],
-        'a' => vec![Token::Str("a")],
-        'a' => vec![Token::String("a".to_owned())],
+        'a' => &[Token::Char('a')],
+        'a' => &[Token::Str("a")],
+        'a' => &[Token::String("a".to_owned())],
     }
     test_string {
-        "abc".to_owned() => vec![Token::Str("abc")],
-        "abc".to_owned() => vec![Token::String("abc".to_owned())],
-        "a".to_owned() => vec![Token::Char('a')],
+        "abc".to_owned() => &[Token::Str("abc")],
+        "abc".to_owned() => &[Token::String("abc".to_owned())],
+        "a".to_owned() => &[Token::Char('a')],
     }
     test_option {
-        None::<i32> => vec![Token::Unit],
-        None::<i32> => vec![Token::Option(false)],
-        Some(1) => vec![Token::I32(1)],
-        Some(1) => vec![
+        None::<i32> => &[Token::Unit],
+        None::<i32> => &[Token::Option(false)],
+        Some(1) => &[Token::I32(1)],
+        Some(1) => &[
             Token::Option(true),
             Token::I32(1),
         ],
     }
     test_result {
-        Ok::<i32, i32>(0) => vec![
+        Ok::<i32, i32>(0) => &[
             Token::EnumStart("Result"),
             Token::Str("Ok"),
             Token::I32(0),
         ],
-        Err::<i32, i32>(1) => vec![
+        Err::<i32, i32>(1) => &[
             Token::EnumStart("Result"),
             Token::Str("Err"),
             Token::I32(1),
         ],
     }
     test_unit {
-        () => vec![Token::Unit],
-        () => vec![
+        () => &[Token::Unit],
+        () => &[
             Token::SeqStart(Some(0)),
             Token::SeqEnd,
         ],
-        () => vec![
+        () => &[
             Token::SeqStart(None),
             Token::SeqEnd,
         ],
-        () => vec![
+        () => &[
             Token::TupleStructStart("Anything", Some(0)),
             Token::SeqEnd,
         ],
     }
     test_unit_struct {
-        UnitStruct => vec![Token::Unit],
-        UnitStruct => vec![
+        UnitStruct => &[Token::Unit],
+        UnitStruct => &[
             Token::UnitStruct("UnitStruct"),
         ],
-        UnitStruct => vec![
+        UnitStruct => &[
             Token::SeqStart(Some(0)),
             Token::SeqEnd,
         ],
-        UnitStruct => vec![
+        UnitStruct => &[
             Token::SeqStart(None),
             Token::SeqEnd,
         ],
     }
     test_tuple_struct {
-        TupleStruct(1, 2, 3) => vec![
+        TupleStruct(1, 2, 3) => &[
             Token::SeqStart(Some(3)),
                 Token::SeqSep,
                 Token::I32(1),
@@ -185,7 +228,7 @@ declare_tests! {
                 Token::I32(3),
             Token::SeqEnd,
         ],
-        TupleStruct(1, 2, 3) => vec![
+        TupleStruct(1, 2, 3) => &[
             Token::SeqStart(None),
                 Token::SeqSep,
                 Token::I32(1),
@@ -197,7 +240,7 @@ declare_tests! {
                 Token::I32(3),
             Token::SeqEnd,
         ],
-        TupleStruct(1, 2, 3) => vec![
+        TupleStruct(1, 2, 3) => &[
             Token::TupleStructStart("TupleStruct", Some(3)),
                 Token::TupleStructSep,
                 Token::I32(1),
@@ -209,7 +252,7 @@ declare_tests! {
                 Token::I32(3),
             Token::TupleStructEnd,
         ],
-        TupleStruct(1, 2, 3) => vec![
+        TupleStruct(1, 2, 3) => &[
             Token::TupleStructStart("TupleStruct", None),
                 Token::TupleStructSep,
                 Token::I32(1),
@@ -223,14 +266,14 @@ declare_tests! {
         ],
     }
     test_btreeset {
-        BTreeSet::<isize>::new() => vec![
+        BTreeSet::<isize>::new() => &[
             Token::Unit,
         ],
-        BTreeSet::<isize>::new() => vec![
+        BTreeSet::<isize>::new() => &[
             Token::SeqStart(Some(0)),
             Token::SeqEnd,
         ],
-        btreeset![btreeset![], btreeset![1], btreeset![2, 3]] => vec![
+        btreeset![btreeset![], btreeset![1], btreeset![2, 3]] => &[
             Token::SeqStart(Some(3)),
                 Token::SeqSep,
                 Token::SeqStart(Some(0)),
@@ -252,23 +295,23 @@ declare_tests! {
                 Token::SeqEnd,
             Token::SeqEnd,
         ],
-        BTreeSet::<isize>::new() => vec![
+        BTreeSet::<isize>::new() => &[
             Token::UnitStruct("Anything"),
         ],
-        BTreeSet::<isize>::new() => vec![
+        BTreeSet::<isize>::new() => &[
             Token::TupleStructStart("Anything", Some(0)),
             Token::SeqEnd,
         ],
     }
     test_hashset {
-        HashSet::<isize>::new() => vec![
+        HashSet::<isize>::new() => &[
             Token::Unit,
         ],
-        HashSet::<isize>::new() => vec![
+        HashSet::<isize>::new() => &[
             Token::SeqStart(Some(0)),
             Token::SeqEnd,
         ],
-        hashset![1, 2, 3] => vec![
+        hashset![1, 2, 3] => &[
             Token::SeqStart(Some(3)),
                 Token::SeqSep,
                 Token::I32(1),
@@ -280,14 +323,14 @@ declare_tests! {
                 Token::I32(3),
             Token::SeqEnd,
         ],
-        HashSet::<isize>::new() => vec![
+        HashSet::<isize>::new() => &[
             Token::UnitStruct("Anything"),
         ],
-        HashSet::<isize>::new() => vec![
+        HashSet::<isize>::new() => &[
             Token::TupleStructStart("Anything", Some(0)),
             Token::SeqEnd,
         ],
-        hashset![FnvHasher @ 1, 2, 3] => vec![
+        hashset![FnvHasher @ 1, 2, 3] => &[
             Token::SeqStart(Some(3)),
                 Token::SeqSep,
                 Token::I32(1),
@@ -301,14 +344,14 @@ declare_tests! {
         ],
     }
     test_vec {
-        Vec::<isize>::new() => vec![
+        Vec::<isize>::new() => &[
             Token::Unit,
         ],
-        Vec::<isize>::new() => vec![
+        Vec::<isize>::new() => &[
             Token::SeqStart(Some(0)),
             Token::SeqEnd,
         ],
-        vec![vec![], vec![1], vec![2, 3]] => vec![
+        vec![vec![], vec![1], vec![2, 3]] => &[
             Token::SeqStart(Some(3)),
                 Token::SeqSep,
                 Token::SeqStart(Some(0)),
@@ -330,27 +373,27 @@ declare_tests! {
                 Token::SeqEnd,
             Token::SeqEnd,
         ],
-        Vec::<isize>::new() => vec![
+        Vec::<isize>::new() => &[
             Token::UnitStruct("Anything"),
         ],
-        Vec::<isize>::new() => vec![
+        Vec::<isize>::new() => &[
             Token::TupleStructStart("Anything", Some(0)),
             Token::SeqEnd,
         ],
     }
     test_array {
-        [0; 0] => vec![
+        [0; 0] => &[
             Token::Unit,
         ],
-        [0; 0] => vec![
+        [0; 0] => &[
             Token::SeqStart(Some(0)),
             Token::SeqEnd,
         ],
-        [0; 0] => vec![
+        [0; 0] => &[
             Token::SeqArrayStart(0),
             Token::SeqEnd,
         ],
-        ([0; 0], [1], [2, 3]) => vec![
+        ([0; 0], [1], [2, 3]) => &[
             Token::SeqStart(Some(3)),
                 Token::SeqSep,
                 Token::SeqStart(Some(0)),
@@ -372,7 +415,7 @@ declare_tests! {
                 Token::SeqEnd,
             Token::SeqEnd,
         ],
-        ([0; 0], [1], [2, 3]) => vec![
+        ([0; 0], [1], [2, 3]) => &[
             Token::SeqArrayStart(3),
                 Token::SeqSep,
                 Token::SeqArrayStart(0),
@@ -394,22 +437,22 @@ declare_tests! {
                 Token::SeqEnd,
             Token::SeqEnd,
         ],
-        [0; 0] => vec![
+        [0; 0] => &[
             Token::UnitStruct("Anything"),
         ],
-        [0; 0] => vec![
+        [0; 0] => &[
             Token::TupleStructStart("Anything", Some(0)),
             Token::SeqEnd,
         ],
     }
     test_tuple {
-        (1,) => vec![
+        (1,) => &[
             Token::SeqStart(Some(1)),
                 Token::SeqSep,
                 Token::I32(1),
             Token::SeqEnd,
         ],
-        (1, 2, 3) => vec![
+        (1, 2, 3) => &[
             Token::SeqStart(Some(3)),
                 Token::SeqSep,
                 Token::I32(1),
@@ -421,13 +464,13 @@ declare_tests! {
                 Token::I32(3),
             Token::SeqEnd,
         ],
-        (1,) => vec![
+        (1,) => &[
             Token::TupleStart(1),
                 Token::TupleSep,
                 Token::I32(1),
             Token::TupleEnd,
         ],
-        (1, 2, 3) => vec![
+        (1, 2, 3) => &[
             Token::TupleStart(3),
                 Token::TupleSep,
                 Token::I32(1),
@@ -441,21 +484,21 @@ declare_tests! {
         ],
     }
     test_btreemap {
-        BTreeMap::<isize, isize>::new() => vec![
+        BTreeMap::<isize, isize>::new() => &[
             Token::Unit,
         ],
-        BTreeMap::<isize, isize>::new() => vec![
+        BTreeMap::<isize, isize>::new() => &[
             Token::MapStart(Some(0)),
             Token::MapEnd,
         ],
-        btreemap![1 => 2] => vec![
+        btreemap![1 => 2] => &[
             Token::MapStart(Some(1)),
                 Token::MapSep,
                 Token::I32(1),
                 Token::I32(2),
             Token::MapEnd,
         ],
-        btreemap![1 => 2, 3 => 4] => vec![
+        btreemap![1 => 2, 3 => 4] => &[
             Token::MapStart(Some(2)),
                 Token::MapSep,
                 Token::I32(1),
@@ -466,7 +509,7 @@ declare_tests! {
                 Token::I32(4),
             Token::MapEnd,
         ],
-        btreemap![1 => btreemap![], 2 => btreemap![3 => 4, 5 => 6]] => vec![
+        btreemap![1 => btreemap![], 2 => btreemap![3 => 4, 5 => 6]] => &[
             Token::MapStart(Some(2)),
                 Token::MapSep,
                 Token::I32(1),
@@ -486,30 +529,30 @@ declare_tests! {
                 Token::MapEnd,
             Token::MapEnd,
         ],
-        BTreeMap::<isize, isize>::new() => vec![
+        BTreeMap::<isize, isize>::new() => &[
             Token::UnitStruct("Anything"),
         ],
-        BTreeMap::<isize, isize>::new() => vec![
+        BTreeMap::<isize, isize>::new() => &[
             Token::StructStart("Anything", Some(0)),
             Token::MapEnd,
         ],
     }
     test_hashmap {
-        HashMap::<isize, isize>::new() => vec![
+        HashMap::<isize, isize>::new() => &[
             Token::Unit,
         ],
-        HashMap::<isize, isize>::new() => vec![
+        HashMap::<isize, isize>::new() => &[
             Token::MapStart(Some(0)),
             Token::MapEnd,
         ],
-        hashmap![1 => 2] => vec![
+        hashmap![1 => 2] => &[
             Token::MapStart(Some(1)),
                 Token::MapSep,
                 Token::I32(1),
                 Token::I32(2),
             Token::MapEnd,
         ],
-        hashmap![1 => 2, 3 => 4] => vec![
+        hashmap![1 => 2, 3 => 4] => &[
             Token::MapStart(Some(2)),
                 Token::MapSep,
                 Token::I32(1),
@@ -520,7 +563,7 @@ declare_tests! {
                 Token::I32(4),
             Token::MapEnd,
         ],
-        hashmap![1 => hashmap![], 2 => hashmap![3 => 4, 5 => 6]] => vec![
+        hashmap![1 => hashmap![], 2 => hashmap![3 => 4, 5 => 6]] => &[
             Token::MapStart(Some(2)),
                 Token::MapSep,
                 Token::I32(1),
@@ -540,14 +583,14 @@ declare_tests! {
                 Token::MapEnd,
             Token::MapEnd,
         ],
-        HashMap::<isize, isize>::new() => vec![
+        HashMap::<isize, isize>::new() => &[
             Token::UnitStruct("Anything"),
         ],
-        HashMap::<isize, isize>::new() => vec![
+        HashMap::<isize, isize>::new() => &[
             Token::StructStart("Anything", Some(0)),
             Token::MapEnd,
         ],
-        hashmap![FnvHasher @ 1 => 2, 3 => 4] => vec![
+        hashmap![FnvHasher @ 1 => 2, 3 => 4] => &[
             Token::MapStart(Some(2)),
                 Token::MapSep,
                 Token::I32(1),
@@ -560,7 +603,7 @@ declare_tests! {
         ],
     }
     test_struct {
-        Struct { a: 1, b: 2, c: 0 } => vec![
+        Struct { a: 1, b: 2, c: 0 } => &[
             Token::MapStart(Some(3)),
                 Token::MapSep,
                 Token::Str("a"),
@@ -571,7 +614,7 @@ declare_tests! {
                 Token::I32(2),
             Token::MapEnd,
         ],
-        Struct { a: 1, b: 2, c: 0 } => vec![
+        Struct { a: 1, b: 2, c: 0 } => &[
             Token::StructStart("Struct", Some(3)),
                 Token::StructSep,
                 Token::Str("a"),
@@ -582,7 +625,7 @@ declare_tests! {
                 Token::I32(2),
             Token::StructEnd,
         ],
-        Struct { a: 1, b: 2, c: 0 } => vec![
+        Struct { a: 1, b: 2, c: 0 } => &[
             Token::SeqStart(Some(3)),
                 Token::SeqSep,
                 Token::I32(1),
@@ -593,7 +636,7 @@ declare_tests! {
         ],
     }
     test_struct_with_skip {
-        Struct { a: 1, b: 2, c: 0 } => vec![
+        Struct { a: 1, b: 2, c: 0 } => &[
             Token::MapStart(Some(3)),
                 Token::MapSep,
                 Token::Str("a"),
@@ -612,7 +655,7 @@ declare_tests! {
                 Token::I32(4),
             Token::MapEnd,
         ],
-        Struct { a: 1, b: 2, c: 0 } => vec![
+        Struct { a: 1, b: 2, c: 0 } => &[
             Token::StructStart("Struct", Some(3)),
                 Token::StructSep,
                 Token::Str("a"),
@@ -633,18 +676,18 @@ declare_tests! {
         ],
     }
     test_enum_unit {
-        Enum::Unit => vec![
+        Enum::Unit => &[
             Token::EnumUnit("Enum", "Unit"),
         ],
     }
     test_enum_simple {
-        Enum::Simple(1) => vec![
+        Enum::Simple(1) => &[
             Token::EnumNewType("Enum", "Simple"),
             Token::I32(1),
         ],
     }
     test_enum_seq {
-        Enum::Seq(1, 2, 3) => vec![
+        Enum::Seq(1, 2, 3) => &[
             Token::EnumSeqStart("Enum", "Seq", Some(3)),
                 Token::EnumSeqSep,
                 Token::I32(1),
@@ -658,7 +701,7 @@ declare_tests! {
         ],
     }
     test_enum_map {
-        Enum::Map { a: 1, b: 2, c: 3 } => vec![
+        Enum::Map { a: 1, b: 2, c: 3 } => &[
             Token::EnumMapStart("Enum", "Map", Some(3)),
                 Token::EnumMapSep,
                 Token::Str("a"),
@@ -675,24 +718,24 @@ declare_tests! {
         ],
     }
     test_enum_unit_usize {
-        Enum::Unit => vec![
+        Enum::Unit => &[
             Token::EnumStart("Enum"),
             Token::Usize(0),
             Token::Unit,
         ],
     }
     test_enum_unit_bytes {
-        Enum::Unit => vec![
+        Enum::Unit => &[
             Token::EnumStart("Enum"),
             Token::Bytes(b"Unit"),
             Token::Unit,
         ],
     }
     test_box {
-        Box::new(0i32) => vec![Token::I32(0)],
+        Box::new(0i32) => &[Token::I32(0)],
     }
     test_boxed_slice {
-        Box::new([0, 1, 2]) => vec![
+        Box::new([0, 1, 2]) => &[
             Token::SeqStart(Some(3)),
             Token::SeqSep,
             Token::I32(0),
@@ -704,18 +747,18 @@ declare_tests! {
         ],
     }
     test_net_ipv4addr {
-        "1.2.3.4".parse::<net::Ipv4Addr>().unwrap() => vec![Token::Str("1.2.3.4")],
+        "1.2.3.4".parse::<net::Ipv4Addr>().unwrap() => &[Token::Str("1.2.3.4")],
     }
     test_net_ipv6addr {
-        "::1".parse::<net::Ipv6Addr>().unwrap() => vec![Token::Str("::1")],
+        "::1".parse::<net::Ipv6Addr>().unwrap() => &[Token::Str("::1")],
     }
     test_net_socketaddr {
-        "1.2.3.4:1234".parse::<net::SocketAddr>().unwrap() => vec![Token::Str("1.2.3.4:1234")],
-        "1.2.3.4:1234".parse::<net::SocketAddrV4>().unwrap() => vec![Token::Str("1.2.3.4:1234")],
-        "[::1]:1234".parse::<net::SocketAddrV6>().unwrap() => vec![Token::Str("[::1]:1234")],
+        "1.2.3.4:1234".parse::<net::SocketAddr>().unwrap() => &[Token::Str("1.2.3.4:1234")],
+        "1.2.3.4:1234".parse::<net::SocketAddrV4>().unwrap() => &[Token::Str("1.2.3.4:1234")],
+        "[::1]:1234".parse::<net::SocketAddrV6>().unwrap() => &[Token::Str("[::1]:1234")],
     }
     test_path_buf {
-        PathBuf::from("/usr/local/lib") => vec![
+        PathBuf::from("/usr/local/lib") => &[
             Token::String("/usr/local/lib".to_owned()),
         ],
     }
@@ -726,30 +769,28 @@ declare_tests! {
 fn test_net_ipaddr() {
     assert_de_tokens(
         "1.2.3.4".parse::<net::IpAddr>().unwrap(),
-        vec![Token::Str("1.2.3.4")],
+        &[Token::Str("1.2.3.4")],
     );
 }
 
 declare_error_tests! {
     test_unknown_variant<Enum> {
-        vec![
+        &[
             Token::EnumUnit("Enum", "Foo"),
         ],
-        Error::UnknownVariantError("Foo".to_owned()),
+        Error::UnknownVariant("Foo".to_owned()),
     }
     test_struct_seq_too_long<Struct> {
-        vec![
+        &[
             Token::SeqStart(Some(4)),
                 Token::SeqSep, Token::I32(1),
                 Token::SeqSep, Token::I32(2),
                 Token::SeqSep, Token::I32(3),
-                Token::SeqSep, Token::I32(4),
-            Token::SeqEnd,
         ],
         Error::UnexpectedToken(Token::SeqSep),
     }
     test_duplicate_field_struct<Struct> {
-        vec![
+        &[
             Token::MapStart(Some(3)),
                 Token::MapSep,
                 Token::Str("a"),
@@ -757,13 +798,11 @@ declare_error_tests! {
 
                 Token::MapSep,
                 Token::Str("a"),
-                Token::I32(3),
-            Token::MapEnd,
         ],
-        Error::DuplicateFieldError("a"),
+        Error::DuplicateField("a"),
     }
     test_duplicate_field_enum<Enum> {
-        vec![
+        &[
             Token::EnumMapStart("Enum", "Map", Some(3)),
                 Token::EnumMapSep,
                 Token::Str("a"),
@@ -771,9 +810,7 @@ declare_error_tests! {
 
                 Token::EnumMapSep,
                 Token::Str("a"),
-                Token::I32(3),
-            Token::EnumMapEnd,
         ],
-        Error::DuplicateFieldError("a"),
+        Error::DuplicateField("a"),
     }
 }

testing/tests/test_macros.rs

@@ -1,11 +1,12 @@
-use std::marker::PhantomData;
-use token::{Token, assert_tokens, assert_ser_tokens, assert_de_tokens};
+extern crate serde_test;
+use self::serde_test::{
+    Token,
+    assert_tokens,
+    assert_ser_tokens,
+    assert_de_tokens,
+};
 
-/*
-trait Trait {
-    type Type;
-}
-*/
+use std::marker::PhantomData;
 
 // That tests that the derived Serialize implementation doesn't trigger
 // any warning about `serializer` not being used, in case of empty enums.
@@ -161,7 +162,7 @@ struct DefaultTyParam<T: AssociatedType<X=i32> = i32> {
 fn test_named_unit() {
     assert_tokens(
         &NamedUnit,
-        vec![Token::UnitStruct("NamedUnit")]
+        &[Token::UnitStruct("NamedUnit")]
     );
 }
 
@@ -192,7 +193,7 @@ fn test_ser_named_tuple() {
 fn test_de_named_tuple() {
     assert_de_tokens(
         &DeNamedTuple(5, 6, 7),
-        vec![
+        &[
             Token::SeqStart(Some(3)),
             Token::SeqSep,
             Token::I32(5),
@@ -209,7 +210,7 @@ fn test_de_named_tuple() {
 
     assert_de_tokens(
         &DeNamedTuple(5, 6, 7),
-        vec![
+        &[
             Token::TupleStructStart("DeNamedTuple", Some(3)),
             Token::TupleStructSep,
             Token::I32(5),
@@ -265,7 +266,7 @@ fn test_de_named_map() {
             b: 6,
             c: 7,
         },
-        vec![
+        &[
             Token::StructStart("DeNamedMap", Some(3)),
 
             Token::StructSep,
@@ -379,7 +380,7 @@ fn test_ser_enum_map() {
 fn test_de_enum_unit() {
     assert_tokens(
         &DeEnum::Unit::<u32, u32, u32>,
-        vec![
+        &[
             Token::EnumUnit("DeEnum", "Unit"),
         ],
     );
@@ -403,7 +404,7 @@ fn test_de_enum_seq() {
             e,
             //f,
         ),
-        vec![
+        &[
             Token::EnumSeqStart("DeEnum", "Seq", Some(4)),
 
             Token::EnumSeqSep,
@@ -441,7 +442,7 @@ fn test_de_enum_map() {
             e: e,
             //f: f,
         },
-        vec![
+        &[
             Token::EnumMapStart("DeEnum", "Map", Some(4)),
 
             Token::EnumMapSep,
@@ -516,7 +517,7 @@ fn test_lifetimes() {
 fn test_generic_struct() {
     assert_tokens(
         &GenericStruct { x: 5u32 },
-        vec![
+        &[
             Token::StructStart("GenericStruct", Some(1)),
 
             Token::StructSep,
@@ -532,7 +533,7 @@ fn test_generic_struct() {
 fn test_generic_newtype_struct() {
     assert_tokens(
         &GenericNewTypeStruct(5u32),
-        vec![
+        &[
             Token::StructNewType("GenericNewTypeStruct"),
             Token::U32(5),
         ]
@@ -543,7 +544,7 @@ fn test_generic_newtype_struct() {
 fn test_generic_tuple_struct() {
     assert_tokens(
         &GenericTupleStruct(5u32, 6u32),
-        vec![
+        &[
             Token::TupleStructStart("GenericTupleStruct", Some(2)),
 
             Token::TupleStructSep,
@@ -561,7 +562,7 @@ fn test_generic_tuple_struct() {
 fn test_generic_enum_unit() {
     assert_tokens(
         &GenericEnum::Unit::<u32, u32>,
-        vec![
+        &[
             Token::EnumUnit("GenericEnum", "Unit"),
         ]
     );
@@ -571,7 +572,7 @@ fn test_generic_enum_unit() {
 fn test_generic_enum_newtype() {
     assert_tokens(
         &GenericEnum::NewType::<u32, u32>(5),
-        vec![
+        &[
             Token::EnumNewType("GenericEnum", "NewType"),
             Token::U32(5),
         ]
@@ -582,7 +583,7 @@ fn test_generic_enum_newtype() {
 fn test_generic_enum_seq() {
     assert_tokens(
         &GenericEnum::Seq::<u32, u32>(5, 6),
-        vec![
+        &[
             Token::EnumSeqStart("GenericEnum", "Seq", Some(2)),
 
             Token::EnumSeqSep,
@@ -600,7 +601,7 @@ fn test_generic_enum_seq() {
 fn test_generic_enum_map() {
     assert_tokens(
         &GenericEnum::Map::<u32, u32> { x: 5, y: 6 },
-        vec![
+        &[
             Token::EnumMapStart("GenericEnum", "Map", Some(2)),
 
             Token::EnumMapSep,
@@ -620,7 +621,7 @@ fn test_generic_enum_map() {
 fn test_default_ty_param() {
     assert_tokens(
         &DefaultTyParam::<i32> { phantom: PhantomData },
-        vec![
+        &[
             Token::StructStart("DefaultTyParam", Some(1)),
 
             Token::StructSep,

testing/tests/test_ser.rs

@@ -3,7 +3,13 @@ use std::net;
 use std::path::{Path, PathBuf};
 use std::str;
 
-use token::{self, Token};
+extern crate serde_test;
+use self::serde_test::{
+    Error,
+    Token,
+    assert_ser_tokens,
+    assert_ser_tokens_error,
+};
 
 extern crate fnv;
 use self::fnv::FnvHasher;
@@ -355,16 +361,16 @@ fn test_cannot_serialize_paths() {
     let path = unsafe {
         str::from_utf8_unchecked(b"Hello \xF0\x90\x80World")
     };
-    token::assert_ser_tokens_error(
+    assert_ser_tokens_error(
         &Path::new(path),
-        &[Token::Str("Hello �World")],
-        token::Error::InvalidValue("Path contains invalid UTF-8 characters".to_owned()));
+        &[],
+        Error::InvalidValue("Path contains invalid UTF-8 characters".to_owned()));
 
     let mut path_buf = PathBuf::new();
     path_buf.push(path);
 
-    token::assert_ser_tokens_error(
+    assert_ser_tokens_error(
         &path_buf,
-        &[Token::Str("Hello �World")],
-        token::Error::InvalidValue("Path contains invalid UTF-8 characters".to_owned()));
+        &[],
+        Error::InvalidValue("Path contains invalid UTF-8 characters".to_owned()));
 }