Release 1.0.178

Fix `serde::de::StdError` in no-std unstable build

.github/workflows/ci.yml

@@ -46,8 +46,6 @@ jobs:
           toolchain: ${{matrix.rust}}
       - run: cd serde && cargo build --features rc
       - run: cd serde && cargo build --no-default-features
-      - run: cd serde_test && cargo build
-      - run: cd serde_test && cargo test --features serde/derive,serde/rc
 
   nightly:
     name: Rust nightly ${{matrix.os == 'windows' && '(windows)' || ''}}
@@ -64,6 +62,7 @@ jobs:
       - run: cd serde && cargo build --no-default-features
       - run: cd serde && cargo build --no-default-features --features alloc
       - run: cd serde && cargo build --no-default-features --features rc,alloc
+      - run: cd serde && cargo build --no-default-features --features unstable
       - run: cd serde && cargo test --features derive,rc,unstable
       - run: cd test_suite/no_std && cargo build
         if: matrix.os != 'windows'
@@ -88,7 +87,6 @@ jobs:
       - run: cd serde && cargo build --features rc
       - run: cd serde && cargo build --no-default-features
       - run: cd serde && cargo build
-      - run: cd serde_test && cargo build
 
   more:
     name: Rust ${{matrix.rust}}
@@ -118,6 +116,7 @@ jobs:
       - run: cd serde && cargo check --no-default-features
       - run: cd serde && cargo check
       - run: cd serde_derive && cargo check
+      - run: cd precompiled/serde_derive && cargo check
 
   alloc:
     name: Rust 1.36.0
@@ -128,6 +127,15 @@ jobs:
       - uses: dtolnay/rust-toolchain@1.36.0
       - run: cd serde && cargo build --no-default-features --features alloc
 
+  macos:
+    name: macOS
+    runs-on: macos-latest
+    timeout-minutes: 45
+    steps:
+      - uses: actions/checkout@v3
+      - uses: dtolnay/rust-toolchain@stable
+      - run: cd precompiled/serde_derive && cargo check
+
   minimal:
     name: Minimal versions
     runs-on: ubuntu-latest
@@ -149,7 +157,6 @@ jobs:
       - run: cd serde && cargo clippy --features rc,unstable -- -Dclippy::all -Dclippy::pedantic
       - run: cd serde_derive && cargo clippy -- -Dclippy::all -Dclippy::pedantic
       - run: cd serde_derive_internals && cargo clippy -- -Dclippy::all -Dclippy::pedantic
-      - run: cd serde_test && cargo clippy -- -Dclippy::all -Dclippy::pedantic
       - run: cd test_suite && cargo clippy --tests --features unstable -- -Dclippy::all -Dclippy::pedantic
       - run: cd test_suite/no_std && cargo clippy -- -Dclippy::all -Dclippy::pedantic
 

Cargo.toml

@@ -3,6 +3,8 @@ members = [
     "serde",
     "serde_derive",
     "serde_derive_internals",
-    "serde_test",
     "test_suite",
 ]
+
+[patch.crates-io]
+serde = { path = "serde" }

precompiled/.gitignore

@@ -0,0 +1 @@
+/serde_derive/serde_derive-x86_64-unknown-linux-gnu

precompiled/Cargo.toml

@@ -0,0 +1,14 @@
+[workspace]
+members = ["bin", "proc-macro2"]
+resolver = "2"
+
+[patch.crates-io]
+proc-macro2 = { path = "proc-macro2" }
+
+[profile.precompiled]
+inherits = "release"
+codegen-units = 1
+lto = true
+opt-level = "z"
+panic = "abort"
+strip = true

precompiled/bin/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "serde_derive"
+version = "1.0.178"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
+publish = false
+
+[lib]
+doctest = false
+
+[[bin]]
+name = "serde_derive"
+path = "main.rs"
+
+[dependencies]
+proc-macro2 = "1"
+quote = { version = "1", default-features = false }
+syn = { version = "2.0.25", default-features = false, features = ["clone-impls", "derive", "full", "parsing", "printing"] }

precompiled/bin/build.rs

@@ -0,0 +1,4 @@
+fn main() {
+    println!("cargo:rustc-cfg=precompiled");
+    println!("cargo:rustc-cfg=feature=\"deserialize_in_place\"");
+}

precompiled/bin/main.rs

@@ -0,0 +1,45 @@
+extern crate proc_macro2;
+
+use proc_macro2::watt;
+use proc_macro2::watt::buffer::InputBuffer;
+use std::alloc::{GlobalAlloc, Layout, System};
+use std::io::{self, Read, Write};
+use std::sync::atomic::Ordering;
+
+struct MonotonicAllocator;
+
+#[global_allocator]
+static ALLOCATOR: MonotonicAllocator = MonotonicAllocator;
+
+unsafe impl GlobalAlloc for MonotonicAllocator {
+    unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
+        System.alloc(layout)
+    }
+
+    unsafe fn dealloc(&self, _ptr: *mut u8, _layout: Layout) {
+        // Leak: this cuts 3% of code size from the precompiled macro binary.
+        // There is no way that serde_derive would fill up all memory on the
+        // host. When the subprocess exits, operating system will clean this up.
+    }
+}
+
+fn main() {
+    let mut buf = Vec::new();
+    io::stdin().read_to_end(&mut buf).unwrap();
+
+    let mut buf = InputBuffer::new(&buf);
+    let derive = match buf.read_u8() {
+        0 => serde_derive::derive_serialize,
+        1 => serde_derive::derive_deserialize,
+        2 => {
+            serde_derive::DESERIALIZE_IN_PLACE.store(true, Ordering::Relaxed);
+            serde_derive::derive_deserialize
+        }
+        _ => unreachable!(),
+    };
+
+    let input = watt::load(&mut buf);
+    let output = derive(input);
+    let bytes = watt::linearize(output);
+    io::stdout().write_all(&bytes).unwrap();
+}

precompiled/bin/src

@@ -0,0 +1 @@
+../../serde_derive/src

precompiled/build.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null
+set -e -x
+
+# TODO: Sanitize host filesystem paths. https://github.com/rust-lang/cargo/issues/12137
+
+cargo +nightly build \
+    --manifest-path bin/Cargo.toml \
+    --bin serde_derive \
+    --profile precompiled \
+    -Z unstable-options \
+    -Z build-std=std,panic_abort \
+    -Z build-std-features=panic_immediate_abort \
+    --target x86_64-unknown-linux-musl \
+    --out-dir serde_derive
+
+rm -f serde_derive/serde_derive-x86_64-unknown-linux-gnu
+mv serde_derive/serde_derive{,-x86_64-unknown-linux-gnu}
+
+#upx --best --lzma serde_derive/serde_derive-x86_64-unknown-linux-gnu

precompiled/proc-macro2/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "proc-macro2"
+version = "1.0.66"
+edition = "2021"
+publish = false
+
+[dependencies]
+proc-macro2 = { package = "proc-macro2-fallback", version = "1" }

precompiled/proc-macro2/src/lib.rs

@@ -0,0 +1,815 @@
+#[doc(hidden)]
+pub mod watt;
+
+use crate::extra::DelimSpan;
+use crate::watt::Identity;
+use std::cmp::Ordering;
+use std::fmt::{self, Debug, Display};
+use std::hash::{Hash, Hasher};
+use std::ops::RangeBounds;
+use std::str::FromStr;
+
+pub use proc_macro2::{Delimiter, Spacing};
+
+#[derive(Copy, Clone)]
+pub struct Span {
+    lo: u32,
+    hi: u32,
+}
+
+impl Span {
+    pub fn call_site() -> Self {
+        Span { lo: 0, hi: 0 }
+    }
+
+    pub fn join(&self, other: Self) -> Option<Self> {
+        Some(Span {
+            lo: self.lo,
+            hi: other.hi,
+        })
+    }
+}
+
+#[derive(Clone)]
+pub enum TokenTree {
+    Group(Group),
+    Ident(Ident),
+    Punct(Punct),
+    Literal(Literal),
+}
+
+impl TokenTree {
+    pub fn span(&self) -> Span {
+        match self {
+            TokenTree::Group(group) => group.span(),
+            TokenTree::Ident(ident) => ident.span(),
+            TokenTree::Punct(punct) => punct.span(),
+            TokenTree::Literal(literal) => literal.span(),
+        }
+    }
+
+    pub fn set_span(&mut self, span: Span) {
+        match self {
+            TokenTree::Group(group) => group.set_span(span),
+            TokenTree::Ident(ident) => ident.set_span(span),
+            TokenTree::Punct(punct) => punct.set_span(span),
+            TokenTree::Literal(literal) => literal.set_span(span),
+        }
+    }
+}
+
+impl From<Group> for TokenTree {
+    fn from(group: Group) -> Self {
+        TokenTree::Group(group)
+    }
+}
+
+impl From<Ident> for TokenTree {
+    fn from(ident: Ident) -> Self {
+        TokenTree::Ident(ident)
+    }
+}
+
+impl From<Punct> for TokenTree {
+    fn from(punct: Punct) -> Self {
+        TokenTree::Punct(punct)
+    }
+}
+
+impl From<Literal> for TokenTree {
+    fn from(literal: Literal) -> Self {
+        TokenTree::Literal(literal)
+    }
+}
+
+impl Debug for TokenTree {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        match self {
+            TokenTree::Group(group) => Debug::fmt(group, formatter),
+            TokenTree::Ident(ident) => {
+                let mut debug = formatter.debug_struct("Ident");
+                debug.field("sym", &format_args!("{}", ident));
+                debug.finish()
+            }
+            TokenTree::Punct(punct) => Debug::fmt(punct, formatter),
+            TokenTree::Literal(literal) => Debug::fmt(literal, formatter),
+        }
+    }
+}
+
+#[derive(Clone)]
+pub struct Group {
+    delimiter: Delimiter,
+    stream: Vec<TokenTree>,
+    span: Span,
+    span_open: Span,
+    span_close: Span,
+    identity: u32,
+}
+
+impl Group {
+    pub fn new(delimiter: Delimiter, stream: TokenStream) -> Self {
+        Group {
+            delimiter,
+            stream: stream.content,
+            span: Span::call_site(),
+            span_open: Span::call_site(),
+            span_close: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn stream(&self) -> TokenStream {
+        TokenStream {
+            content: self.stream.clone(),
+        }
+    }
+
+    pub fn delimiter(&self) -> Delimiter {
+        self.delimiter
+    }
+
+    pub fn span(&self) -> Span {
+        self.span
+    }
+
+    pub fn span_open(&self) -> Span {
+        self.span_open
+    }
+
+    pub fn span_close(&self) -> Span {
+        self.span_close
+    }
+
+    pub fn delim_span(&self) -> DelimSpan {
+        DelimSpan {
+            join: self.span,
+            open: self.span_open,
+            close: self.span_close,
+        }
+    }
+
+    pub fn set_span(&mut self, span: Span) {
+        self.span = span;
+        self.identity |= Identity::RESPANNED;
+    }
+}
+
+impl Display for Group {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        let (open, close) = match self.delimiter {
+            Delimiter::Parenthesis => ("(", ")"),
+            Delimiter::Brace => ("{ ", "}"),
+            Delimiter::Bracket => ("[", "]"),
+            Delimiter::None => ("", ""),
+        };
+
+        formatter.write_str(open)?;
+        display_tokens(&self.stream, formatter)?;
+        if self.delimiter == Delimiter::Brace && !self.stream.is_empty() {
+            formatter.write_str(" ")?;
+        }
+        formatter.write_str(close)?;
+
+        Ok(())
+    }
+}
+
+impl Debug for Group {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        let mut debug = formatter.debug_struct("Group");
+        debug.field("delimiter", &self.delimiter);
+        debug.field("stream", &self.stream);
+        debug.finish()
+    }
+}
+
+#[derive(Clone)]
+pub struct Ident {
+    fallback: proc_macro2::Ident,
+    span: Span,
+    identity: u32,
+}
+
+impl Ident {
+    pub fn new(string: &str, span: Span) -> Self {
+        Ident {
+            fallback: proc_macro2::Ident::new(string, proc_macro2::Span::call_site()),
+            span,
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn new_raw(string: &str, span: Span) -> Self {
+        Ident {
+            fallback: proc_macro2::Ident::new_raw(string, proc_macro2::Span::call_site()),
+            span,
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn span(&self) -> Span {
+        self.span
+    }
+
+    pub fn set_span(&mut self, span: Span) {
+        self.span = span;
+        self.identity |= Identity::RESPANNED;
+    }
+}
+
+impl Display for Ident {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        Display::fmt(&self.fallback, formatter)
+    }
+}
+
+impl Debug for Ident {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        Debug::fmt(&self.fallback, formatter)
+    }
+}
+
+impl Eq for Ident {}
+
+impl PartialEq for Ident {
+    fn eq(&self, other: &Self) -> bool {
+        PartialEq::eq(&self.fallback, &other.fallback)
+    }
+}
+
+impl<T> PartialEq<T> for Ident
+where
+    T: ?Sized + AsRef<str>,
+{
+    fn eq(&self, other: &T) -> bool {
+        PartialEq::eq(&self.fallback, other)
+    }
+}
+
+impl Ord for Ident {
+    fn cmp(&self, other: &Self) -> Ordering {
+        Ord::cmp(&self.fallback, &other.fallback)
+    }
+}
+
+impl PartialOrd for Ident {
+    fn partial_cmp(&self, other: &Self) -> Option<Ordering> {
+        PartialOrd::partial_cmp(&self.fallback, &other.fallback)
+    }
+}
+
+impl Hash for Ident {
+    fn hash<H: Hasher>(&self, hasher: &mut H) {
+        Hash::hash(&self.fallback, hasher);
+    }
+}
+
+#[derive(Clone)]
+pub struct Punct {
+    fallback: proc_macro2::Punct,
+    span: Span,
+    identity: u32,
+}
+
+impl Punct {
+    pub fn new(ch: char, spacing: Spacing) -> Self {
+        Punct {
+            fallback: proc_macro2::Punct::new(ch, spacing),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn as_char(&self) -> char {
+        self.fallback.as_char()
+    }
+
+    pub fn spacing(&self) -> Spacing {
+        self.fallback.spacing()
+    }
+
+    pub fn span(&self) -> Span {
+        self.span
+    }
+
+    pub fn set_span(&mut self, span: Span) {
+        self.span = span;
+        self.identity |= Identity::RESPANNED;
+    }
+}
+
+impl Display for Punct {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        Display::fmt(&self.fallback, formatter)
+    }
+}
+
+impl Debug for Punct {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        Debug::fmt(&self.fallback, formatter)
+    }
+}
+
+#[derive(Clone)]
+pub struct Literal {
+    fallback: proc_macro2::Literal,
+    span: Span,
+    identity: u32,
+}
+
+impl Literal {
+    pub fn u8_suffixed(n: u8) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u8_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn u16_suffixed(n: u16) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u16_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn u32_suffixed(n: u32) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u32_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn u64_suffixed(n: u64) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u64_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn u128_suffixed(n: u128) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u128_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn usize_suffixed(n: usize) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::usize_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i8_suffixed(n: i8) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i8_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i16_suffixed(n: i16) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i16_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i32_suffixed(n: i32) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i32_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i64_suffixed(n: i64) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i64_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i128_suffixed(n: i128) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i128_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn isize_suffixed(n: isize) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::isize_suffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn u8_unsuffixed(n: u8) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u8_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn u16_unsuffixed(n: u16) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u16_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn u32_unsuffixed(n: u32) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u32_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn u64_unsuffixed(n: u64) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u64_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn u128_unsuffixed(n: u128) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::u128_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn usize_unsuffixed(n: usize) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::usize_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i8_unsuffixed(n: i8) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i8_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i16_unsuffixed(n: i16) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i16_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i32_unsuffixed(n: i32) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i32_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i64_unsuffixed(n: i64) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i64_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn i128_unsuffixed(n: i128) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::i128_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn isize_unsuffixed(n: isize) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::isize_unsuffixed(n),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn f64_unsuffixed(f: f64) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::f64_unsuffixed(f),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn f64_suffixed(f: f64) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::f64_suffixed(f),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn f32_unsuffixed(f: f32) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::f32_unsuffixed(f),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn f32_suffixed(f: f32) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::f32_suffixed(f),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn string(string: &str) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::string(string),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn character(ch: char) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::character(ch),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn byte_string(s: &[u8]) -> Self {
+        Literal {
+            fallback: proc_macro2::Literal::byte_string(s),
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        }
+    }
+
+    pub fn span(&self) -> Span {
+        self.span
+    }
+
+    pub fn set_span(&mut self, span: Span) {
+        self.span = span;
+        self.identity |= Identity::RESPANNED;
+    }
+
+    pub fn subspan<R: RangeBounds<usize>>(&self, range: R) -> Option<Span> {
+        let _ = range;
+        None
+    }
+}
+
+impl FromStr for Literal {
+    type Err = LexError;
+
+    fn from_str(repr: &str) -> Result<Self, Self::Err> {
+        let fallback = match proc_macro2::Literal::from_str(repr) {
+            Ok(literal) => literal,
+            Err(error) => {
+                return Err(LexError {
+                    fallback: error,
+                    span: Span::call_site(),
+                });
+            }
+        };
+        Ok(Literal {
+            fallback,
+            span: Span::call_site(),
+            identity: Identity::NOVEL,
+        })
+    }
+}
+
+impl Display for Literal {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        Display::fmt(&self.fallback, formatter)
+    }
+}
+
+impl Debug for Literal {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        Debug::fmt(&self.fallback, formatter)
+    }
+}
+
+#[derive(Clone)]
+pub struct TokenStream {
+    content: Vec<TokenTree>,
+}
+
+impl TokenStream {
+    pub fn new() -> Self {
+        TokenStream {
+            content: Vec::new(),
+        }
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.content.is_empty()
+    }
+}
+
+impl IntoIterator for TokenStream {
+    type Item = TokenTree;
+    type IntoIter = token_stream::IntoIter;
+
+    fn into_iter(self) -> Self::IntoIter {
+        token_stream::IntoIter {
+            iter: self.content.into_iter(),
+        }
+    }
+}
+
+impl Extend<TokenStream> for TokenStream {
+    fn extend<I: IntoIterator<Item = TokenStream>>(&mut self, streams: I) {
+        self.content.extend(streams.into_iter().flatten());
+    }
+}
+
+impl Extend<TokenTree> for TokenStream {
+    fn extend<I: IntoIterator<Item = TokenTree>>(&mut self, streams: I) {
+        self.content.extend(streams);
+    }
+}
+
+impl FromIterator<TokenStream> for TokenStream {
+    fn from_iter<I: IntoIterator<Item = TokenStream>>(streams: I) -> Self {
+        let content = streams.into_iter().flatten().collect();
+        TokenStream { content }
+    }
+}
+
+impl FromIterator<TokenTree> for TokenStream {
+    fn from_iter<I: IntoIterator<Item = TokenTree>>(streams: I) -> Self {
+        let content = streams.into_iter().collect();
+        TokenStream { content }
+    }
+}
+
+impl FromStr for TokenStream {
+    type Err = LexError;
+
+    fn from_str(string: &str) -> Result<Self, Self::Err> {
+        let fallback = match proc_macro2::TokenStream::from_str(string) {
+            Ok(token_stream) => token_stream,
+            Err(error) => {
+                return Err(LexError {
+                    fallback: error,
+                    span: Span::call_site(),
+                });
+            }
+        };
+
+        fn convert_token_stream(stream: proc_macro2::TokenStream) -> TokenStream {
+            TokenStream {
+                content: stream.into_iter().map(convert_token_tree).collect(),
+            }
+        }
+
+        fn convert_token_tree(token: proc_macro2::TokenTree) -> TokenTree {
+            match token {
+                proc_macro2::TokenTree::Group(group) => TokenTree::Group(Group::new(
+                    group.delimiter(),
+                    convert_token_stream(group.stream()),
+                )),
+                proc_macro2::TokenTree::Ident(ident) => TokenTree::Ident(Ident {
+                    fallback: ident,
+                    span: Span::call_site(),
+                    identity: Identity::NOVEL,
+                }),
+                proc_macro2::TokenTree::Punct(punct) => TokenTree::Punct(Punct {
+                    fallback: punct,
+                    span: Span::call_site(),
+                    identity: Identity::NOVEL,
+                }),
+                proc_macro2::TokenTree::Literal(literal) => TokenTree::Literal(Literal {
+                    fallback: literal,
+                    span: Span::call_site(),
+                    identity: Identity::NOVEL,
+                }),
+            }
+        }
+
+        Ok(convert_token_stream(fallback))
+    }
+}
+
+fn display_tokens(tokens: &[TokenTree], formatter: &mut fmt::Formatter) -> fmt::Result {
+    let mut joint = false;
+    for (i, token) in tokens.iter().enumerate() {
+        if i != 0 && !joint {
+            write!(formatter, " ")?;
+        }
+        joint = false;
+        match token {
+            TokenTree::Group(group) => Display::fmt(group, formatter),
+            TokenTree::Ident(ident) => Display::fmt(ident, formatter),
+            TokenTree::Punct(punct) => {
+                joint = punct.spacing() == Spacing::Joint;
+                Display::fmt(punct, formatter)
+            }
+            TokenTree::Literal(literal) => Display::fmt(literal, formatter),
+        }?;
+    }
+
+    Ok(())
+}
+
+impl Display for TokenStream {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        display_tokens(&self.content, formatter)
+    }
+}
+
+impl Debug for TokenStream {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        formatter.write_str("TokenStream ")?;
+        formatter.debug_list().entries(&self.content).finish()
+    }
+}
+
+pub struct LexError {
+    fallback: proc_macro2::LexError,
+    span: Span,
+}
+
+impl LexError {
+    pub fn span(&self) -> Span {
+        self.span
+    }
+}
+
+impl Debug for LexError {
+    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        Debug::fmt(&self.fallback, formatter)
+    }
+}
+
+pub mod token_stream {
+    use super::*;
+
+    #[derive(Clone)]
+    pub struct IntoIter {
+        pub(crate) iter: <Vec<TokenTree> as IntoIterator>::IntoIter,
+    }
+
+    impl Iterator for IntoIter {
+        type Item = TokenTree;
+
+        fn next(&mut self) -> Option<Self::Item> {
+            self.iter.next()
+        }
+
+        fn size_hint(&self) -> (usize, Option<usize>) {
+            self.iter.size_hint()
+        }
+    }
+}
+
+pub mod extra {
+    use crate::Span;
+
+    #[derive(Copy, Clone)]
+    pub struct DelimSpan {
+        pub(crate) join: Span,
+        pub(crate) open: Span,
+        pub(crate) close: Span,
+    }
+
+    impl DelimSpan {
+        pub fn join(&self) -> Span {
+            self.join
+        }
+
+        pub fn open(&self) -> Span {
+            self.open
+        }
+
+        pub fn close(&self) -> Span {
+            self.close
+        }
+    }
+}

precompiled/proc-macro2/src/watt/buffer.rs

@@ -0,0 +1,69 @@
+use std::str;
+
+pub struct OutputBuffer {
+    bytes: Vec<u8>,
+}
+
+impl OutputBuffer {
+    pub fn new() -> Self {
+        OutputBuffer { bytes: Vec::new() }
+    }
+
+    pub fn write_u8(&mut self, value: u8) {
+        self.bytes.push(value);
+    }
+
+    pub fn write_u16(&mut self, value: u16) {
+        self.bytes.extend_from_slice(&value.to_le_bytes());
+    }
+
+    pub fn write_u32(&mut self, value: u32) {
+        self.bytes.extend_from_slice(&value.to_le_bytes());
+    }
+
+    pub fn write_str(&mut self, value: &str) {
+        self.bytes.extend_from_slice(value.as_bytes());
+    }
+
+    pub fn into_bytes(self) -> Vec<u8> {
+        self.bytes
+    }
+}
+
+pub struct InputBuffer<'a> {
+    bytes: &'a [u8],
+}
+
+impl<'a> InputBuffer<'a> {
+    pub fn new(bytes: &'a [u8]) -> Self {
+        InputBuffer { bytes }
+    }
+
+    pub fn is_empty(&self) -> bool {
+        self.bytes.is_empty()
+    }
+
+    pub fn read_u8(&mut self) -> u8 {
+        let (first, rest) = self.bytes.split_first().unwrap();
+        self.bytes = rest;
+        *first
+    }
+
+    pub fn read_u16(&mut self) -> u16 {
+        let (value, rest) = self.bytes.split_at(2);
+        self.bytes = rest;
+        u16::from_le_bytes([value[0], value[1]])
+    }
+
+    pub fn read_u32(&mut self) -> u32 {
+        let (value, rest) = self.bytes.split_at(4);
+        self.bytes = rest;
+        u32::from_le_bytes([value[0], value[1], value[2], value[3]])
+    }
+
+    pub fn read_str(&mut self, len: usize) -> &'a str {
+        let (string, rest) = self.bytes.split_at(len);
+        self.bytes = rest;
+        str::from_utf8(string).unwrap()
+    }
+}

precompiled/proc-macro2/src/watt/bytecode.rs

@@ -0,0 +1,17 @@
+pub enum Bytecode {}
+
+impl Bytecode {
+    pub const GROUP_PARENTHESIS: u8 = 0;
+    pub const GROUP_BRACE: u8 = 1;
+    pub const GROUP_BRACKET: u8 = 2;
+    pub const GROUP_NONE: u8 = 3;
+    pub const IDENT: u8 = 4;
+    pub const PUNCT_ALONE: u8 = 5;
+    pub const PUNCT_JOINT: u8 = 6;
+    pub const LITERAL: u8 = 7;
+    pub const LOAD_GROUP: u8 = 8;
+    pub const LOAD_IDENT: u8 = 9;
+    pub const LOAD_PUNCT: u8 = 10;
+    pub const LOAD_LITERAL: u8 = 11;
+    pub const SET_SPAN: u8 = 12;
+}

precompiled/proc-macro2/src/watt/mod.rs

@@ -0,0 +1,205 @@
+pub mod buffer;
+pub mod bytecode;
+
+use crate::watt::buffer::{InputBuffer, OutputBuffer};
+use crate::watt::bytecode::Bytecode;
+use crate::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree};
+use std::str::FromStr;
+
+pub enum Kind {
+    Group(Delimiter),
+    Ident,
+    Punct(Spacing),
+    Literal,
+}
+
+pub enum Identity {}
+
+impl Identity {
+    pub const RESPANNED: u32 = 1 << 31;
+    pub const NOVEL: u32 = u32::MAX;
+}
+
+impl Span {
+    fn is_call_site(&self) -> bool {
+        self.lo == 0 && self.hi == 0
+    }
+}
+
+fn post_increment(counter: &mut u32) -> impl FnMut() -> u32 + '_ {
+    || {
+        let value = *counter;
+        *counter += 1;
+        value
+    }
+}
+
+pub fn load(buf: &mut InputBuffer) -> TokenStream {
+    let mut span_counter = 1;
+    let mut next_span = post_increment(&mut span_counter);
+    let mut next_span = || {
+        let next = next_span();
+        Span { lo: next, hi: next }
+    };
+
+    let [mut group_counter, mut ident_counter, mut punct_counter, mut literal_counter] = [0; 4];
+    let mut next_group = post_increment(&mut group_counter);
+    let mut next_ident = post_increment(&mut ident_counter);
+    let mut next_punct = post_increment(&mut punct_counter);
+    let mut next_literal = post_increment(&mut literal_counter);
+
+    let mut trees = Vec::new();
+    while !buf.is_empty() {
+        match match buf.read_u8() {
+            Bytecode::GROUP_PARENTHESIS => Kind::Group(Delimiter::Parenthesis),
+            Bytecode::GROUP_BRACE => Kind::Group(Delimiter::Brace),
+            Bytecode::GROUP_BRACKET => Kind::Group(Delimiter::Bracket),
+            Bytecode::GROUP_NONE => Kind::Group(Delimiter::None),
+            Bytecode::IDENT => Kind::Ident,
+            Bytecode::PUNCT_ALONE => Kind::Punct(Spacing::Alone),
+            Bytecode::PUNCT_JOINT => Kind::Punct(Spacing::Joint),
+            Bytecode::LITERAL => Kind::Literal,
+            _ => unreachable!(),
+        } {
+            Kind::Group(delimiter) => {
+                let len = buf.read_u32();
+                let stream = trees.drain(trees.len() - len as usize..).collect();
+                trees.push(TokenTree::Group(Group {
+                    delimiter,
+                    stream,
+                    span: next_span(),
+                    span_open: next_span(),
+                    span_close: next_span(),
+                    identity: next_group(),
+                }));
+            }
+            Kind::Ident => {
+                let len = buf.read_u16();
+                let repr = buf.read_str(len as usize);
+                let ident = if let Some(repr) = repr.strip_prefix("r#") {
+                    proc_macro2::Ident::new_raw(repr, proc_macro2::Span::call_site())
+                } else if repr == "$crate" {
+                    proc_macro2::Ident::new("crate", proc_macro2::Span::call_site())
+                } else {
+                    proc_macro2::Ident::new(repr, proc_macro2::Span::call_site())
+                };
+                trees.push(TokenTree::Ident(Ident {
+                    fallback: ident,
+                    span: next_span(),
+                    identity: next_ident(),
+                }));
+            }
+            Kind::Punct(spacing) => {
+                let ch = buf.read_u8();
+                assert!(ch.is_ascii());
+                let punct = proc_macro2::Punct::new(ch as char, spacing);
+                trees.push(TokenTree::Punct(Punct {
+                    fallback: punct,
+                    span: next_span(),
+                    identity: next_punct(),
+                }));
+            }
+            Kind::Literal => {
+                let len = buf.read_u16();
+                let repr = buf.read_str(len as usize);
+                let literal = proc_macro2::Literal::from_str(repr).unwrap();
+                trees.push(TokenTree::Literal(Literal {
+                    fallback: literal,
+                    span: next_span(),
+                    identity: next_literal(),
+                }));
+            }
+        }
+    }
+
+    TokenStream { content: trees }
+}
+
+pub fn linearize(tokens: TokenStream) -> Vec<u8> {
+    let mut buf = OutputBuffer::new();
+    for token in &tokens.content {
+        linearize_token(token, &mut buf);
+    }
+    buf.into_bytes()
+}
+
+fn linearize_token(token: &TokenTree, buf: &mut OutputBuffer) {
+    let needs_span;
+    match token {
+        TokenTree::Group(group) => {
+            if group.identity < Identity::NOVEL {
+                buf.write_u8(Bytecode::LOAD_GROUP);
+                buf.write_u32(group.identity & !Identity::RESPANNED);
+                needs_span = group.identity >= Identity::RESPANNED;
+            } else {
+                let len = group.stream.len();
+                assert!(len <= u32::MAX as usize);
+                for token in &group.stream {
+                    linearize_token(token, buf);
+                }
+                buf.write_u8(match group.delimiter {
+                    Delimiter::Parenthesis => Bytecode::GROUP_PARENTHESIS,
+                    Delimiter::Brace => Bytecode::GROUP_BRACE,
+                    Delimiter::Bracket => Bytecode::GROUP_BRACKET,
+                    Delimiter::None => Bytecode::GROUP_NONE,
+                });
+                buf.write_u32(len as u32);
+                needs_span = !group.span.is_call_site();
+            }
+        }
+        TokenTree::Ident(ident) => {
+            if ident.identity < Identity::NOVEL {
+                buf.write_u8(Bytecode::LOAD_IDENT);
+                buf.write_u32(ident.identity & !Identity::RESPANNED);
+                needs_span = ident.identity >= Identity::RESPANNED;
+            } else {
+                buf.write_u8(Bytecode::IDENT);
+                let repr = ident.to_string();
+                assert!(repr.len() <= u16::MAX as usize);
+                buf.write_u16(repr.len() as u16);
+                buf.write_str(&repr);
+                linearize_span(ident.span, buf);
+                needs_span = false;
+            }
+        }
+        TokenTree::Punct(punct) => {
+            if punct.identity < Identity::NOVEL {
+                buf.write_u8(Bytecode::LOAD_PUNCT);
+                buf.write_u32(punct.identity & !Identity::RESPANNED);
+                needs_span = punct.identity >= Identity::RESPANNED;
+            } else {
+                buf.write_u8(match punct.spacing() {
+                    Spacing::Alone => Bytecode::PUNCT_ALONE,
+                    Spacing::Joint => Bytecode::PUNCT_JOINT,
+                });
+                let ch = punct.as_char();
+                assert!(ch.is_ascii());
+                buf.write_u8(ch as u8);
+                needs_span = !punct.span.is_call_site();
+            }
+        }
+        TokenTree::Literal(literal) => {
+            if literal.identity < Identity::NOVEL {
+                buf.write_u8(Bytecode::LOAD_LITERAL);
+                buf.write_u32(literal.identity & !Identity::RESPANNED);
+                needs_span = literal.identity >= Identity::RESPANNED;
+            } else {
+                buf.write_u8(Bytecode::LITERAL);
+                let repr = literal.to_string();
+                assert!(repr.len() <= u16::MAX as usize);
+                buf.write_u16(repr.len() as u16);
+                buf.write_str(&repr);
+                needs_span = !literal.span.is_call_site();
+            }
+        }
+    }
+    if needs_span {
+        buf.write_u8(Bytecode::SET_SPAN);
+        linearize_span(token.span(), buf);
+    }
+}
+
+fn linearize_span(span: Span, buf: &mut OutputBuffer) {
+    buf.write_u32(span.lo);
+    buf.write_u32(span.hi);
+}

precompiled/serde_derive/Cargo.toml

@@ -0,0 +1,36 @@
+[package]
+name = "serde_derive"
+version = "1.0.178"
+authors = ["David Tolnay <dtolnay@gmail.com>"]
+categories = ["no-std", "no-std::no-alloc"]
+description = "Implementation of #[derive(Serialize, Deserialize)]"
+documentation = "https://serde.rs/derive.html"
+edition = "2015"
+homepage = "https://serde.rs"
+include = ["serde_derive-x86_64-unknown-linux-gnu", "src", "LICENSE-APACHE", "LICENSE-MIT"]
+keywords = ["serde", "serialization", "no_std", "derive"]
+license = "MIT OR Apache-2.0"
+readme = "crates-io.md"
+repository = "https://github.com/serde-rs/serde"
+rust-version = "1.56"
+
+[features]
+default = []
+deserialize_in_place = []
+
+[lib]
+proc-macro = true
+
+[target.'cfg(not(all(target_arch = "x86_64", target_os = "linux", target_env = "gnu")))'.dependencies]
+proc-macro2 = "1"
+quote = "1"
+syn = "2.0.25"
+
+[dev-dependencies]
+serde = { version = "1", path = "../../serde" }
+
+[package.metadata.docs.rs]
+targets = ["x86_64-unknown-linux-gnu"]
+rustdoc-args = ["--generate-link-to-definition"]
+
+[workspace]

precompiled/serde_derive/LICENSE-APACHE

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

precompiled/serde_derive/LICENSE-MIT

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

precompiled/serde_derive/README.md

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

precompiled/serde_derive/crates-io.md

@@ -0,0 +1 @@
+../../crates-io.md

precompiled/serde_derive/src/bound.rs

@@ -0,0 +1 @@
+../../../serde_derive/src/bound.rs

precompiled/serde_derive/src/buffer.rs

@@ -0,0 +1 @@
+../../proc-macro2/src/watt/buffer.rs

precompiled/serde_derive/src/bytecode.rs

@@ -0,0 +1 @@
+../../proc-macro2/src/watt/bytecode.rs

precompiled/serde_derive/src/de.rs

@@ -0,0 +1 @@
+../../../serde_derive/src/de.rs

precompiled/serde_derive/src/dummy.rs

@@ -0,0 +1 @@
+../../../serde_derive/src/dummy.rs

precompiled/serde_derive/src/fragment.rs

@@ -0,0 +1 @@
+../../../serde_derive/src/fragment.rs

precompiled/serde_derive/src/internals

@@ -0,0 +1 @@
+../../../serde_derive/src/internals/

precompiled/serde_derive/src/lib.rs

@@ -0,0 +1,22 @@
+//! This crate provides Serde's two derive macros.
+//!
+//! ```edition2021
+//! # use serde_derive::{Deserialize, Serialize};
+//! #
+//! #[derive(Serialize, Deserialize)]
+//! # struct S;
+//! #
+//! # fn main() {}
+//! ```
+//!
+//! Please refer to [https://serde.rs/derive.html] for how to set this up.
+//!
+//! [https://serde.rs/derive.html]: https://serde.rs/derive.html
+
+#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.178")]
+
+#[cfg(not(all(target_arch = "x86_64", target_os = "linux", target_env = "gnu")))]
+include!("lib_from_source.rs");
+
+#[cfg(all(target_arch = "x86_64", target_os = "linux", target_env = "gnu"))]
+include!("lib_precompiled.rs");

precompiled/serde_derive/src/lib_from_source.rs

@@ -0,0 +1,35 @@
+extern crate proc_macro;
+extern crate proc_macro2;
+extern crate quote;
+extern crate syn;
+
+#[macro_use]
+mod bound;
+#[macro_use]
+mod fragment;
+
+mod de;
+mod dummy;
+mod internals;
+mod pretend;
+mod ser;
+mod this;
+
+use proc_macro::TokenStream;
+use syn::{parse_macro_input, DeriveInput};
+
+#[proc_macro_derive(Serialize, attributes(serde))]
+pub fn derive_serialize(input: TokenStream) -> TokenStream {
+    let mut input = parse_macro_input!(input as DeriveInput);
+    ser::expand_derive_serialize(&mut input)
+        .unwrap_or_else(syn::Error::into_compile_error)
+        .into()
+}
+
+#[proc_macro_derive(Deserialize, attributes(serde))]
+pub fn derive_deserialize(input: TokenStream) -> TokenStream {
+    let mut input = parse_macro_input!(input as DeriveInput);
+    de::expand_derive_deserialize(&mut input)
+        .unwrap_or_else(syn::Error::into_compile_error)
+        .into()
+}

precompiled/serde_derive/src/lib_precompiled.rs

@@ -0,0 +1,234 @@
+extern crate proc_macro;
+
+mod buffer;
+mod bytecode;
+
+use crate::buffer::{InputBuffer, OutputBuffer};
+use crate::bytecode::Bytecode;
+use proc_macro::{Delimiter, Group, Ident, Literal, Punct, Spacing, Span, TokenStream, TokenTree};
+use std::io::{ErrorKind, Read, Write};
+use std::iter::FromIterator;
+use std::path::Path;
+use std::process::{Command, ExitStatus, Stdio};
+use std::str::FromStr;
+
+#[proc_macro_derive(Serialize, attributes(serde))]
+pub fn derive_serialize(input: TokenStream) -> TokenStream {
+    derive(0, input)
+}
+
+#[proc_macro_derive(Deserialize, attributes(serde))]
+pub fn derive_deserialize(input: TokenStream) -> TokenStream {
+    derive(1 + cfg!(feature = "deserialize_in_place") as u8, input)
+}
+
+fn derive(select: u8, input: TokenStream) -> TokenStream {
+    let mut memory = TokenMemory::default();
+    let mut buf = OutputBuffer::new();
+    buf.write_u8(select);
+
+    memory.spans.push(Span::call_site());
+    for token in input {
+        memory.linearize_token(token, &mut buf);
+    }
+
+    let exe_path = Path::new(concat!(
+        env!("CARGO_MANIFEST_DIR"),
+        "/serde_derive-x86_64-unknown-linux-gnu",
+    ));
+    let mut child = match Command::new(exe_path)
+        .stdin(Stdio::piped())
+        .stdout(Stdio::piped())
+        .spawn()
+    {
+        Ok(child) => child,
+        Err(io_error) => {
+            if io_error.kind() == ErrorKind::NotFound {
+                panic!(
+                    "file missing from serde_derive manifest directory during macro expansion: {}",
+                    exe_path.display(),
+                );
+            } else {
+                panic!("failed to spawn process: {}", io_error);
+            }
+        }
+    };
+
+    let mut stdin = child.stdin.take().unwrap();
+    let mut buf = buf.into_bytes();
+    stdin.write_all(&buf).unwrap();
+    drop(stdin);
+
+    let mut stdout = child.stdout.take().unwrap();
+    buf.clear();
+    stdout.read_to_end(&mut buf).unwrap();
+
+    let success = child.wait().as_ref().map_or(true, ExitStatus::success);
+    if !success || buf.is_empty() {
+        panic!();
+    }
+
+    let mut buf = InputBuffer::new(&buf);
+    memory.receive(&mut buf)
+}
+
+#[derive(Default)]
+struct TokenMemory {
+    spans: Vec<Span>,
+    groups: Vec<Group>,
+    idents: Vec<Ident>,
+    puncts: Vec<Punct>,
+    literals: Vec<Literal>,
+}
+
+enum Kind {
+    Group(Delimiter),
+    Ident,
+    Punct(Spacing),
+    Literal,
+}
+
+impl TokenMemory {
+    // Depth-first post-order traversal.
+    fn linearize_token(&mut self, token: TokenTree, buf: &mut OutputBuffer) {
+        match token {
+            TokenTree::Group(group) => {
+                let mut len = 0usize;
+                for token in group.stream() {
+                    self.linearize_token(token, buf);
+                    len += 1;
+                }
+                assert!(len <= u32::MAX as usize);
+                buf.write_u8(match group.delimiter() {
+                    Delimiter::Parenthesis => Bytecode::GROUP_PARENTHESIS,
+                    Delimiter::Brace => Bytecode::GROUP_BRACE,
+                    Delimiter::Bracket => Bytecode::GROUP_BRACKET,
+                    Delimiter::None => Bytecode::GROUP_NONE,
+                });
+                buf.write_u32(len as u32);
+                self.spans
+                    .extend([group.span(), group.span_open(), group.span_close()]);
+                self.groups.push(group);
+            }
+            TokenTree::Ident(ident) => {
+                buf.write_u8(Bytecode::IDENT);
+                let repr = ident.to_string();
+                assert!(repr.len() <= u16::MAX as usize);
+                buf.write_u16(repr.len() as u16);
+                buf.write_str(&repr);
+                self.spans.push(ident.span());
+                self.idents.push(ident);
+            }
+            TokenTree::Punct(punct) => {
+                buf.write_u8(match punct.spacing() {
+                    Spacing::Alone => Bytecode::PUNCT_ALONE,
+                    Spacing::Joint => Bytecode::PUNCT_JOINT,
+                });
+                let ch = punct.as_char();
+                assert!(ch.is_ascii());
+                buf.write_u8(ch as u8);
+                self.spans.push(punct.span());
+                self.puncts.push(punct);
+            }
+            TokenTree::Literal(literal) => {
+                buf.write_u8(Bytecode::LITERAL);
+                let repr = literal.to_string();
+                assert!(repr.len() <= u16::MAX as usize);
+                buf.write_u16(repr.len() as u16);
+                buf.write_str(&repr);
+                self.spans.push(literal.span());
+                self.literals.push(literal);
+            }
+        }
+    }
+
+    fn receive(&self, buf: &mut InputBuffer) -> TokenStream {
+        let mut trees = Vec::new();
+        while !buf.is_empty() {
+            match match buf.read_u8() {
+                Bytecode::GROUP_PARENTHESIS => Kind::Group(Delimiter::Parenthesis),
+                Bytecode::GROUP_BRACE => Kind::Group(Delimiter::Brace),
+                Bytecode::GROUP_BRACKET => Kind::Group(Delimiter::Bracket),
+                Bytecode::GROUP_NONE => Kind::Group(Delimiter::None),
+                Bytecode::IDENT => Kind::Ident,
+                Bytecode::PUNCT_ALONE => Kind::Punct(Spacing::Alone),
+                Bytecode::PUNCT_JOINT => Kind::Punct(Spacing::Joint),
+                Bytecode::LITERAL => Kind::Literal,
+                Bytecode::LOAD_GROUP => {
+                    let identity = buf.read_u32();
+                    let group = self.groups[identity as usize].clone();
+                    trees.push(TokenTree::Group(group));
+                    continue;
+                }
+                Bytecode::LOAD_IDENT => {
+                    let identity = buf.read_u32();
+                    let ident = self.idents[identity as usize].clone();
+                    trees.push(TokenTree::Ident(ident));
+                    continue;
+                }
+                Bytecode::LOAD_PUNCT => {
+                    let identity = buf.read_u32();
+                    let punct = self.puncts[identity as usize].clone();
+                    trees.push(TokenTree::Punct(punct));
+                    continue;
+                }
+                Bytecode::LOAD_LITERAL => {
+                    let identity = buf.read_u32();
+                    let literal = self.literals[identity as usize].clone();
+                    trees.push(TokenTree::Literal(literal));
+                    continue;
+                }
+                Bytecode::SET_SPAN => {
+                    trees.last_mut().unwrap().set_span(self.read_span(buf));
+                    continue;
+                }
+                _ => unreachable!(),
+            } {
+                Kind::Group(delimiter) => {
+                    let len = buf.read_u32();
+                    let stream = trees.drain(trees.len() - len as usize..).collect();
+                    let group = Group::new(delimiter, stream);
+                    trees.push(TokenTree::Group(group));
+                }
+                Kind::Ident => {
+                    let len = buf.read_u16();
+                    let repr = buf.read_str(len as usize);
+                    let span = self.read_span(buf);
+                    let ident = if let Some(repr) = repr.strip_prefix("r#") {
+                        Ident::new_raw(repr, span)
+                    } else {
+                        Ident::new(repr, span)
+                    };
+                    trees.push(TokenTree::Ident(ident));
+                }
+                Kind::Punct(spacing) => {
+                    let ch = buf.read_u8();
+                    assert!(ch.is_ascii());
+                    let punct = Punct::new(ch as char, spacing);
+                    trees.push(TokenTree::Punct(punct));
+                }
+                Kind::Literal => {
+                    let len = buf.read_u16();
+                    let repr = buf.read_str(len as usize);
+                    let literal = Literal::from_str(repr).unwrap();
+                    trees.push(TokenTree::Literal(literal));
+                }
+            }
+        }
+
+        TokenStream::from_iter(trees)
+    }
+
+    fn read_span(&self, buf: &mut InputBuffer) -> Span {
+        let lo = buf.read_u32();
+        let hi = buf.read_u32();
+        let span = self.spans[lo as usize];
+        if lo == hi {
+            span
+        } else {
+            #[cfg(any())] // FIXME
+            return span.join(self.spans[hi as usize]).unwrap_or(span);
+            span
+        }
+    }
+}

precompiled/serde_derive/src/pretend.rs

@@ -0,0 +1 @@
+../../../serde_derive/src/pretend.rs

precompiled/serde_derive/src/ser.rs

@@ -0,0 +1 @@
+../../../serde_derive/src/ser.rs

precompiled/serde_derive/src/this.rs

@@ -0,0 +1 @@
+../../../serde_derive/src/this.rs

serde/Cargo.toml

@@ -1,13 +1,12 @@
 [package]
 name = "serde"
-version = "1.0.170" # remember to update html_root_url and serde_derive dependency
+version = "1.0.178" # remember to update html_root_url and serde_derive dependency
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 build = "build.rs"
 categories = ["encoding", "no-std", "no-std::no-alloc"]
 description = "A generic serialization/deserialization framework"
 documentation = "https://docs.rs/serde"
 homepage = "https://serde.rs"
-include = ["build.rs", "src/**/*.rs", "crates-io.md", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
 keywords = ["serde", "serialization", "no_std"]
 license = "MIT OR Apache-2.0"
 readme = "crates-io.md"
@@ -15,10 +14,10 @@ repository = "https://github.com/serde-rs/serde"
 rust-version = "1.19"
 
 [dependencies]
-serde_derive = { version = "=1.0.170", optional = true, path = "../serde_derive" }
+serde_derive = { version = "=1.0.178", optional = true, path = "../serde_derive" }
 
 [dev-dependencies]
-serde_derive = { version = "1.0", path = "../serde_derive" }
+serde_derive = { version = "1", path = "../serde_derive" }
 
 [lib]
 doc-scrape-examples = false
@@ -29,6 +28,7 @@ features = ["derive", "rc"]
 [package.metadata.docs.rs]
 features = ["derive"]
 targets = ["x86_64-unknown-linux-gnu"]
+rustdoc-args = ["--generate-link-to-definition"]
 
 
 ### FEATURES #################################################################

serde/src/de/mod.rs

@@ -126,10 +126,13 @@ mod utf8;
 
 pub use self::ignored_any::IgnoredAny;
 
+#[cfg(all(feature = "unstable", not(feature = "std")))]
+#[doc(no_inline)]
+pub use core::error::Error as StdError;
 #[cfg(feature = "std")]
 #[doc(no_inline)]
 pub use std::error::Error as StdError;
-#[cfg(not(feature = "std"))]
+#[cfg(not(any(feature = "std", feature = "unstable")))]
 #[doc(no_inline)]
 pub use std_error::Error as StdError;
 

serde/src/lib.rs

@@ -93,7 +93,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 // Serde types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/serde/1.0.170")]
+#![doc(html_root_url = "https://docs.rs/serde/1.0.178")]
 // Support using Serde without the standard library!
 #![cfg_attr(not(feature = "std"), no_std)]
 // Unstable functionality only if the user asks for it. For tracking and
@@ -149,6 +149,8 @@
         must_use_candidate,
     )
 )]
+// Restrictions
+#![cfg_attr(feature = "cargo-clippy", deny(question_mark_used))]
 // Rustc lints.
 #![deny(missing_docs, unused_imports)]
 
@@ -335,8 +337,6 @@ mod std_error;
 // be annoying for crates that provide handwritten impls or data formats. They
 // would need to disable default features and then explicitly re-enable std.
 #[cfg(feature = "serde_derive")]
-#[allow(unused_imports)]
-#[macro_use]
 extern crate serde_derive;
 
 /// Derive macro available if serde is built with `features = ["derive"]`.

serde/src/ser/mod.rs

@@ -116,7 +116,7 @@ mod impossible;
 pub use self::impossible::Impossible;
 
 #[cfg(all(feature = "unstable", not(feature = "std")))]
-#[doc(inline)]
+#[doc(no_inline)]
 pub use core::error::Error as StdError;
 #[cfg(feature = "std")]
 #[doc(no_inline)]

serde_derive/Cargo.toml

@@ -1,12 +1,11 @@
 [package]
 name = "serde_derive"
-version = "1.0.170" # remember to update html_root_url
+version = "1.0.178" # remember to update html_root_url
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 categories = ["no-std", "no-std::no-alloc"]
 description = "Macros 1.1 implementation of #[derive(Serialize, Deserialize)]"
 documentation = "https://serde.rs/derive.html"
 homepage = "https://serde.rs"
-include = ["build.rs", "src/**/*.rs", "crates-io.md", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
 keywords = ["serde", "serialization", "no_std", "derive"]
 license = "MIT OR Apache-2.0"
 readme = "crates-io.md"
@@ -27,7 +26,8 @@ quote = "1.0"
 syn = "2.0.25"
 
 [dev-dependencies]
-serde = { version = "1.0", path = "../serde" }
+serde = { version = "1", path = "../serde" }
 
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
+rustdoc-args = ["--generate-link-to-definition"]

serde_derive/src/bound.rs

@@ -1,12 +1,9 @@
-use std::collections::HashSet;
-
-use syn;
-use syn::punctuated::{Pair, Punctuated};
-
-use internals::ast::{Container, Data};
-use internals::{attr, ungroup};
-
+use crate::internals::ast::{Container, Data};
+use crate::internals::{attr, ungroup};
 use proc_macro2::Span;
+use std::collections::HashSet;
+use syn::punctuated::{Pair, Punctuated};
+use syn::Token;
 
 // Remove the default from every type parameter because in the generated impls
 // they look like associated types: "error: associated type bindings are not

serde_derive/src/de.rs

@@ -1,19 +1,16 @@
+use crate::fragment::{Expr, Fragment, Match, Stmts};
+use crate::internals::ast::{Container, Data, Field, Style, Variant};
+use crate::internals::{attr, replace_receiver, ungroup, Ctxt, Derive};
+use crate::{bound, dummy, pretend, this};
 use proc_macro2::{Literal, Span, TokenStream};
-use quote::ToTokens;
-use syn::punctuated::Punctuated;
-use syn::spanned::Spanned;
-use syn::{self, Ident, Index, Member};
-
-use bound;
-use dummy;
-use fragment::{Expr, Fragment, Match, Stmts};
-use internals::ast::{Container, Data, Field, Style, Variant};
-use internals::{attr, replace_receiver, ungroup, Ctxt, Derive};
-use pretend;
-use this;
-
+use quote::{quote, quote_spanned, ToTokens};
 use std::collections::BTreeSet;
 use std::ptr;
+#[cfg(precompiled)]
+use std::sync::atomic::Ordering;
+use syn::punctuated::Punctuated;
+use syn::spanned::Spanned;
+use syn::{parse_quote, Ident, Index, Member};
 
 pub fn expand_derive_deserialize(input: &mut syn::DeriveInput) -> syn::Result<TokenStream> {
     replace_receiver(input);
@@ -304,6 +301,11 @@ fn deserialize_body(cont: &Container, params: &Parameters) -> Fragment {
 
 #[cfg(feature = "deserialize_in_place")]
 fn deserialize_in_place_body(cont: &Container, params: &Parameters) -> Option<Stmts> {
+    #[cfg(precompiled)]
+    if !crate::DESERIALIZE_IN_PLACE.load(Ordering::Relaxed) {
+        return None;
+    }
+
     // Only remote derives have getters, and we do not generate
     // deserialize_in_place for remote derives.
     assert!(!params.has_getter);
@@ -410,16 +412,22 @@ fn deserialize_unit_struct(params: &Parameters, cattrs: &attr::Container) -> Fra
     let this_type = &params.this_type;
     let this_value = &params.this_value;
     let type_name = cattrs.name().deserialize_name();
+    let (de_impl_generics, de_ty_generics, ty_generics, where_clause) =
+        split_with_de_lifetime(params);
+    let delife = params.borrowed.de_lifetime();
 
     let expecting = format!("unit struct {}", params.type_name());
     let expecting = cattrs.expecting().unwrap_or(&expecting);
 
     quote_block! {
         #[doc(hidden)]
-        struct __Visitor;
+        struct __Visitor #de_impl_generics #where_clause {
+            marker: _serde::__private::PhantomData<#this_type #ty_generics>,
+            lifetime: _serde::__private::PhantomData<&#delife ()>,
+        }
 
-        impl<'de> _serde::de::Visitor<'de> for __Visitor {
-            type Value = #this_type;
+        impl #de_impl_generics _serde::de::Visitor<#delife> for __Visitor #de_ty_generics #where_clause {
+            type Value = #this_type #ty_generics;
 
             fn expecting(&self, __formatter: &mut _serde::__private::Formatter) -> _serde::__private::fmt::Result {
                 _serde::__private::Formatter::write_str(__formatter, #expecting)
@@ -434,7 +442,14 @@ fn deserialize_unit_struct(params: &Parameters, cattrs: &attr::Container) -> Fra
             }
         }
 
-        _serde::Deserializer::deserialize_unit_struct(__deserializer, #type_name, __Visitor)
+        _serde::Deserializer::deserialize_unit_struct(
+            __deserializer,
+            #type_name,
+            __Visitor {
+                marker: _serde::__private::PhantomData::<#this_type #ty_generics>,
+                lifetime: _serde::__private::PhantomData,
+            },
+        )
     }
 }
 
@@ -695,14 +710,14 @@ fn deserialize_seq(
                     let span = field.original.span();
                     let func =
                         quote_spanned!(span=> _serde::de::SeqAccess::next_element::<#field_ty>);
-                    quote!(try!(#func(&mut __seq)))
+                    quote!(#func(&mut __seq)?)
                 }
                 Some(path) => {
                     let (wrapper, wrapper_ty) = wrap_deserialize_field_with(params, field.ty, path);
                     quote!({
                         #wrapper
                         _serde::__private::Option::map(
-                            try!(_serde::de::SeqAccess::next_element::<#wrapper_ty>(&mut __seq)),
+                            _serde::de::SeqAccess::next_element::<#wrapper_ty>(&mut __seq)?,
                             |__wrap| __wrap.value)
                     })
                 }
@@ -809,8 +824,8 @@ fn deserialize_seq_in_place(
             let write = match field.attrs.deserialize_with() {
                 None => {
                     quote! {
-                        if let _serde::__private::None = try!(_serde::de::SeqAccess::next_element_seed(&mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.#member)))
+                        if let _serde::__private::None = _serde::de::SeqAccess::next_element_seed(&mut __seq,
+                            _serde::__private::de::InPlaceSeed(&mut self.place.#member))?
                         {
                             #value_if_none
                         }
@@ -820,7 +835,7 @@ fn deserialize_seq_in_place(
                     let (wrapper, wrapper_ty) = wrap_deserialize_field_with(params, field.ty, path);
                     quote!({
                         #wrapper
-                        match try!(_serde::de::SeqAccess::next_element::<#wrapper_ty>(&mut __seq)) {
+                        match _serde::de::SeqAccess::next_element::<#wrapper_ty>(&mut __seq)? {
                             _serde::__private::Some(__wrap) => {
                                 self.place.#member = __wrap.value;
                             }
@@ -872,12 +887,12 @@ fn deserialize_newtype_struct(
             let span = field.original.span();
             let func = quote_spanned!(span=> <#field_ty as _serde::Deserialize>::deserialize);
             quote! {
-                try!(#func(__e))
+                #func(__e)?
             }
         }
         Some(path) => {
             quote! {
-                try!(#path(__e))
+                #path(__e)?
             }
         }
     };
@@ -1349,7 +1364,7 @@ fn deserialize_externally_tagged_enum(
         }
     } else {
         quote! {
-            match try!(_serde::de::EnumAccess::variant(__data)) {
+            match _serde::de::EnumAccess::variant(__data)? {
                 #(#variant_arms)*
             }
         }
@@ -1429,9 +1444,9 @@ fn deserialize_internally_tagged_enum(
 
         #variants_stmt
 
-        let (__tag, __content) = try!(_serde::Deserializer::deserialize_any(
+        let (__tag, __content) = _serde::Deserializer::deserialize_any(
             __deserializer,
-            _serde::__private::de::TaggedContentVisitor::<__Field>::new(#tag, #expecting)));
+            _serde::__private::de::TaggedContentVisitor::<__Field>::new(#tag, #expecting))?;
         let __deserializer = _serde::__private::de::ContentDeserializer::<__D::Error>::new(__content);
 
         match __tag {
@@ -1539,7 +1554,7 @@ fn deserialize_adjacently_tagged_enum(
 
     // Advance the map by one key, returning early in case of error.
     let next_key = quote! {
-        try!(_serde::de::MapAccess::next_key_seed(&mut __map, #tag_or_content))
+        _serde::de::MapAccess::next_key_seed(&mut __map, #tag_or_content)?
     };
 
     // When allowing unknown fields, we want to transparently step through keys
@@ -1552,7 +1567,7 @@ fn deserialize_adjacently_tagged_enum(
             while let _serde::__private::Some(__k) = #next_key {
                 match __k {
                     _serde::__private::de::TagContentOtherField::Other => {
-                        let _ = try!(_serde::de::MapAccess::next_value::<_serde::de::IgnoredAny>(&mut __map));
+                        let _ = _serde::de::MapAccess::next_value::<_serde::de::IgnoredAny>(&mut __map)?;
                         continue;
                     },
                     _serde::__private::de::TagContentOtherField::Tag => {
@@ -1587,14 +1602,14 @@ fn deserialize_adjacently_tagged_enum(
 
     let finish_content_then_tag = if variant_arms.is_empty() {
         quote! {
-            match try!(_serde::de::MapAccess::next_value::<__Field>(&mut __map)) {}
+            match _serde::de::MapAccess::next_value::<__Field>(&mut __map)? {}
         }
     } else {
         quote! {
-            let __ret = try!(match try!(_serde::de::MapAccess::next_value(&mut __map)) {
+            let __ret = match _serde::de::MapAccess::next_value(&mut __map)? {
                 // Deserialize the buffered content now that we know the variant.
                 #(#variant_arms)*
-            });
+            }?;
             // Visit remaining keys, looking for duplicates.
             #visit_remaining_keys
         }
@@ -1647,7 +1662,7 @@ fn deserialize_adjacently_tagged_enum(
                     // First key is the tag.
                     _serde::__private::Some(_serde::__private::de::TagOrContentField::Tag) => {
                         // Parse the tag.
-                        let __field = try!(_serde::de::MapAccess::next_value(&mut __map));
+                        let __field = _serde::de::MapAccess::next_value(&mut __map)?;
                         // Visit the second key.
                         match #next_relevant_key {
                             // Second key is a duplicate of the tag.
@@ -1656,12 +1671,12 @@ fn deserialize_adjacently_tagged_enum(
                             }
                             // Second key is the content.
                             _serde::__private::Some(_serde::__private::de::TagOrContentField::Content) => {
-                                let __ret = try!(_serde::de::MapAccess::next_value_seed(&mut __map,
+                                let __ret = _serde::de::MapAccess::next_value_seed(&mut __map,
                                     __Seed {
                                         field: __field,
                                         marker: _serde::__private::PhantomData,
                                         lifetime: _serde::__private::PhantomData,
-                                    }));
+                                    })?;
                                 // Visit remaining keys, looking for duplicates.
                                 #visit_remaining_keys
                             }
@@ -1672,7 +1687,7 @@ fn deserialize_adjacently_tagged_enum(
                     // First key is the content.
                     _serde::__private::Some(_serde::__private::de::TagOrContentField::Content) => {
                         // Buffer up the content.
-                        let __content = try!(_serde::de::MapAccess::next_value::<_serde::__private::de::Content>(&mut __map));
+                        let __content = _serde::de::MapAccess::next_value::<_serde::__private::de::Content>(&mut __map)?;
                         // Visit the second key.
                         match #next_relevant_key {
                             // Second key is the tag.
@@ -1702,17 +1717,17 @@ fn deserialize_adjacently_tagged_enum(
                 __A: _serde::de::SeqAccess<#delife>,
             {
                 // Visit the first element - the tag.
-                match try!(_serde::de::SeqAccess::next_element(&mut __seq)) {
+                match _serde::de::SeqAccess::next_element(&mut __seq)? {
                     _serde::__private::Some(__field) => {
                         // Visit the second element - the content.
-                        match try!(_serde::de::SeqAccess::next_element_seed(
+                        match _serde::de::SeqAccess::next_element_seed(
                             &mut __seq,
                             __Seed {
                                 field: __field,
                                 marker: _serde::__private::PhantomData,
                                 lifetime: _serde::__private::PhantomData,
                             },
-                        )) {
+                        )? {
                             _serde::__private::Some(__ret) => _serde::__private::Ok(__ret),
                             // There is no second element.
                             _serde::__private::None => {
@@ -1782,7 +1797,7 @@ fn deserialize_untagged_enum_after(
     let fallthrough_msg = cattrs.expecting().unwrap_or(&fallthrough_msg);
 
     quote_block! {
-        let __content = try!(<_serde::__private::de::Content as _serde::Deserialize>::deserialize(__deserializer));
+        let __content = <_serde::__private::de::Content as _serde::Deserialize>::deserialize(__deserializer)?;
         let __deserializer = _serde::__private::de::ContentRefDeserializer::<__D::Error>::new(&__content);
 
         #(
@@ -1815,7 +1830,7 @@ fn deserialize_externally_tagged_variant(
         Style::Unit => {
             let this_value = &params.this_value;
             quote_block! {
-                try!(_serde::de::VariantAccess::unit_variant(__variant));
+                _serde::de::VariantAccess::unit_variant(__variant)?;
                 _serde::__private::Ok(#this_value::#variant_ident)
             }
         }
@@ -1864,7 +1879,7 @@ fn deserialize_internally_tagged_variant(
                 quote!((#default))
             });
             quote_block! {
-                try!(_serde::Deserializer::deserialize_any(#deserializer, _serde::__private::de::InternallyTaggedUnitVisitor::new(#type_name, #variant_name)));
+                _serde::Deserializer::deserialize_any(#deserializer, _serde::__private::de::InternallyTaggedUnitVisitor::new(#type_name, #variant_name))?;
                 _serde::__private::Ok(#this_value::#variant_ident #default)
             }
         }
@@ -1950,7 +1965,7 @@ fn deserialize_externally_tagged_newtype_variant(
     if field.attrs.skip_deserializing() {
         let default = Expr(expr_is_missing(field, cattrs));
         return quote_block! {
-            try!(_serde::de::VariantAccess::unit_variant(__variant));
+            _serde::de::VariantAccess::unit_variant(__variant)?;
             _serde::__private::Ok(#this_value::#variant_ident(#default))
         };
     }
@@ -2525,7 +2540,7 @@ fn deserialize_map(
                     let func =
                         quote_spanned!(span=> _serde::de::MapAccess::next_value::<#field_ty>);
                     quote! {
-                        try!(#func(&mut __map))
+                        #func(&mut __map)?
                     }
                 }
                 Some(path) => {
@@ -2557,14 +2572,14 @@ fn deserialize_map(
             __Field::__other(__name) => {
                 __collect.push(_serde::__private::Some((
                     __name,
-                    try!(_serde::de::MapAccess::next_value(&mut __map)))));
+                    _serde::de::MapAccess::next_value(&mut __map)?)));
             }
         })
     } else if cattrs.deny_unknown_fields() {
         None
     } else {
         Some(quote! {
-            _ => { let _ = try!(_serde::de::MapAccess::next_value::<_serde::de::IgnoredAny>(&mut __map)); }
+            _ => { let _ = _serde::de::MapAccess::next_value::<_serde::de::IgnoredAny>(&mut __map)?; }
         })
     };
 
@@ -2572,14 +2587,14 @@ fn deserialize_map(
     let match_keys = if cattrs.deny_unknown_fields() && all_skipped {
         quote! {
             // FIXME: Once feature(exhaustive_patterns) is stable:
-            // let _serde::__private::None::<__Field> = try!(_serde::de::MapAccess::next_key(&mut __map));
+            // let _serde::__private::None::<__Field> = _serde::de::MapAccess::next_key(&mut __map)?;
             _serde::__private::Option::map(
-                try!(_serde::de::MapAccess::next_key::<__Field>(&mut __map)),
+                _serde::de::MapAccess::next_key::<__Field>(&mut __map)?,
                 |__impossible| match __impossible {});
         }
     } else {
         quote! {
-            while let _serde::__private::Some(__key) = try!(_serde::de::MapAccess::next_key::<__Field>(&mut __map)) {
+            while let _serde::__private::Some(__key) = _serde::de::MapAccess::next_key::<__Field>(&mut __map)? {
                 match __key {
                     #(#value_arms)*
                     #ignored_arm
@@ -2615,10 +2630,10 @@ fn deserialize_map(
                 Some(path) => quote!(#path),
             };
             quote! {
-                let #name: #field_ty = try!(#func(
+                let #name: #field_ty = #func(
                     _serde::__private::de::FlatMapDeserializer(
                         &mut __collect,
-                        _serde::__private::PhantomData)));
+                        _serde::__private::PhantomData))?;
             }
         });
 
@@ -2765,7 +2780,7 @@ fn deserialize_map_in_place(
             let visit = match field.attrs.deserialize_with() {
                 None => {
                     quote! {
-                        try!(_serde::de::MapAccess::next_value_seed(&mut __map, _serde::__private::de::InPlaceSeed(&mut self.place.#member)))
+                        _serde::de::MapAccess::next_value_seed(&mut __map, _serde::__private::de::InPlaceSeed(&mut self.place.#member))?
                     }
                 }
                 Some(path) => {
@@ -2797,7 +2812,7 @@ fn deserialize_map_in_place(
         None
     } else {
         Some(quote! {
-            _ => { let _ = try!(_serde::de::MapAccess::next_value::<_serde::de::IgnoredAny>(&mut __map)); }
+            _ => { let _ = _serde::de::MapAccess::next_value::<_serde::de::IgnoredAny>(&mut __map)?; }
         })
     };
 
@@ -2806,14 +2821,14 @@ fn deserialize_map_in_place(
     let match_keys = if cattrs.deny_unknown_fields() && all_skipped {
         quote! {
             // FIXME: Once feature(exhaustive_patterns) is stable:
-            // let _serde::__private::None::<__Field> = try!(_serde::de::MapAccess::next_key(&mut __map));
+            // let _serde::__private::None::<__Field> = _serde::de::MapAccess::next_key(&mut __map)?;
             _serde::__private::Option::map(
-                try!(_serde::de::MapAccess::next_key::<__Field>(&mut __map)),
+                _serde::de::MapAccess::next_key::<__Field>(&mut __map)?,
                 |__impossible| match __impossible {});
         }
     } else {
         quote! {
-            while let _serde::__private::Some(__key) = try!(_serde::de::MapAccess::next_key::<__Field>(&mut __map)) {
+            while let _serde::__private::Some(__key) = _serde::de::MapAccess::next_key::<__Field>(&mut __map)? {
                 match __key {
                     #(#value_arms_from)*
                     #ignored_arm
@@ -2910,7 +2925,7 @@ fn wrap_deserialize_with(
                 __D: _serde::Deserializer<#delife>,
             {
                 _serde::__private::Ok(__DeserializeWith {
-                    value: try!(#deserialize_with(__deserializer)),
+                    value: #deserialize_with(__deserializer)?,
                     phantom: _serde::__private::PhantomData,
                     lifetime: _serde::__private::PhantomData,
                 })
@@ -3020,7 +3035,7 @@ fn expr_is_missing(field: &Field, cattrs: &attr::Container) -> Fragment {
             let span = field.original.span();
             let func = quote_spanned!(span=> _serde::__private::de::missing_field);
             quote_expr! {
-                try!(#func(#name))
+                #func(#name)?
             }
         }
         Some(_) => {

serde_derive/src/dummy.rs

@@ -1,11 +1,7 @@
 use proc_macro2::TokenStream;
-
-use syn;
-use try;
+use quote::quote;
 
 pub fn wrap_in_const(serde_path: Option<&syn::Path>, code: TokenStream) -> TokenStream {
-    let try_replacement = try::replacement();
-
     let use_serde = match serde_path {
         Some(path) => quote! {
             use #path as _serde;
@@ -21,7 +17,6 @@ pub fn wrap_in_const(serde_path: Option<&syn::Path>, code: TokenStream) -> Token
         #[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
         const _: () = {
             #use_serde
-            #try_replacement
             #code
         };
     }

serde_derive/src/fragment.rs

@@ -1,6 +1,6 @@
 use proc_macro2::TokenStream;
 use quote::ToTokens;
-use syn::token;
+use syn::{token, Token};
 
 pub enum Fragment {
     /// Tokens that can be used as an expression.

serde_derive/src/internals/ast.rs

@@ -1,10 +1,8 @@
 //! A Serde ast, parsed from the Syn ast and ready to generate Rust code.
 
-use internals::attr;
-use internals::check;
-use internals::{Ctxt, Derive};
-use syn;
+use crate::internals::{attr, check, Ctxt, Derive};
 use syn::punctuated::Punctuated;
+use syn::Token;
 
 /// A source data structure annotated with `#[derive(Serialize)]` and/or `#[derive(Deserialize)]`,
 /// parsed into an internal representation.
@@ -88,9 +86,12 @@ impl<'a> Container<'a> {
                         if field.attrs.flatten() {
                             has_flatten = true;
                         }
-                        field
-                            .attrs
-                            .rename_by_rules(variant.attrs.rename_all_rules());
+                        field.attrs.rename_by_rules(
+                            variant
+                                .attrs
+                                .rename_all_rules()
+                                .or(attrs.rename_all_fields_rules()),
+                        );
                     }
                 }
             }
@@ -121,7 +122,7 @@ impl<'a> Container<'a> {
 }
 
 impl<'a> Data<'a> {
-    pub fn all_fields(&'a self) -> Box<Iterator<Item = &'a Field<'a>> + 'a> {
+    pub fn all_fields(&'a self) -> Box<dyn Iterator<Item = &'a Field<'a>> + 'a> {
         match self {
             Data::Enum(variants) => {
                 Box::new(variants.iter().flat_map(|variant| variant.fields.iter()))

serde_derive/src/internals/attr.rs

@@ -1,15 +1,14 @@
-use internals::symbol::*;
-use internals::{ungroup, Ctxt};
+use crate::internals::symbol::*;
+use crate::internals::{ungroup, Ctxt};
 use proc_macro2::{Spacing, Span, TokenStream, TokenTree};
 use quote::ToTokens;
 use std::borrow::Cow;
 use std::collections::BTreeSet;
 use std::iter::FromIterator;
-use syn;
 use syn::meta::ParseNestedMeta;
 use syn::parse::ParseStream;
 use syn::punctuated::Punctuated;
-use syn::{token, Ident, Lifetime};
+use syn::{parse_quote, token, Ident, Lifetime, Token};
 
 // This module handles parsing of `#[serde(...)]` attributes. The entrypoints
 // are `attr::Container::from_ast`, `attr::Variant::from_ast`, and
@@ -19,7 +18,7 @@ use syn::{token, Ident, Lifetime};
 // user will see errors simultaneously for all bad attributes in the crate
 // rather than just the first.
 
-pub use internals::case::RenameRule;
+pub use crate::internals::case::RenameRule;
 
 struct Attr<'c, T> {
     cx: &'c Ctxt,
@@ -193,11 +192,23 @@ impl Name {
     }
 }
 
+#[derive(Copy, Clone)]
 pub struct RenameAllRules {
     serialize: RenameRule,
     deserialize: RenameRule,
 }
 
+impl RenameAllRules {
+    /// Returns a new `RenameAllRules` with the individual rules of `self` and
+    /// `other_rules` joined by `RenameRules::or`.
+    pub fn or(self, other_rules: Self) -> Self {
+        Self {
+            serialize: self.serialize.or(other_rules.serialize),
+            deserialize: self.deserialize.or(other_rules.deserialize),
+        }
+    }
+}
+
 /// Represents struct or enum attribute information.
 pub struct Container {
     name: Name,
@@ -205,6 +216,7 @@ pub struct Container {
     deny_unknown_fields: bool,
     default: Default,
     rename_all_rules: RenameAllRules,
+    rename_all_fields_rules: RenameAllRules,
     ser_bound: Option<Vec<syn::WherePredicate>>,
     de_bound: Option<Vec<syn::WherePredicate>>,
     tag: TagType,
@@ -288,6 +300,8 @@ impl Container {
         let mut default = Attr::none(cx, DEFAULT);
         let mut rename_all_ser_rule = Attr::none(cx, RENAME_ALL);
         let mut rename_all_de_rule = Attr::none(cx, RENAME_ALL);
+        let mut rename_all_fields_ser_rule = Attr::none(cx, RENAME_ALL_FIELDS);
+        let mut rename_all_fields_de_rule = Attr::none(cx, RENAME_ALL_FIELDS);
         let mut ser_bound = Attr::none(cx, BOUND);
         let mut de_bound = Attr::none(cx, BOUND);
         let mut untagged = BoolAttr::none(cx, UNTAGGED);
@@ -341,6 +355,44 @@ impl Container {
                             }
                         }
                     }
+                } else if meta.path == RENAME_ALL_FIELDS {
+                    // #[serde(rename_all_fields = "foo")]
+                    // #[serde(rename_all_fields(serialize = "foo", deserialize = "bar"))]
+                    let one_name = meta.input.peek(Token![=]);
+                    let (ser, de) = get_renames(cx, RENAME_ALL_FIELDS, &meta)?;
+
+                    match item.data {
+                        syn::Data::Enum(_) => {
+                            if let Some(ser) = ser {
+                                match RenameRule::from_str(&ser.value()) {
+                                    Ok(rename_rule) => {
+                                        rename_all_fields_ser_rule.set(&meta.path, rename_rule);
+                                    }
+                                    Err(err) => cx.error_spanned_by(ser, err),
+                                }
+                            }
+                            if let Some(de) = de {
+                                match RenameRule::from_str(&de.value()) {
+                                    Ok(rename_rule) => {
+                                        rename_all_fields_de_rule.set(&meta.path, rename_rule);
+                                    }
+                                    Err(err) => {
+                                        if !one_name {
+                                            cx.error_spanned_by(de, err);
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                        syn::Data::Struct(_) => {
+                            let msg = "#[serde(rename_all_fields)] can only be used on enums";
+                            cx.syn_error(meta.error(msg));
+                        }
+                        syn::Data::Union(_) => {
+                            let msg = "#[serde(rename_all_fields)] can only be used on enums";
+                            cx.syn_error(meta.error(msg));
+                        }
+                    }
                 } else if meta.path == TRANSPARENT {
                     // #[serde(transparent)]
                     transparent.set_true(meta.path);
@@ -358,16 +410,16 @@ impl Container {
                                     }
                                     syn::Fields::Unnamed(_) | syn::Fields::Unit => {
                                         let msg = "#[serde(default = \"...\")] can only be used on structs with named fields";
-                                        cx.error_spanned_by(fields, msg);
+                                        cx.syn_error(meta.error(msg));
                                     }
                                 },
-                                syn::Data::Enum(syn::DataEnum { enum_token, .. }) => {
+                                syn::Data::Enum(_) => {
                                     let msg = "#[serde(default = \"...\")] can only be used on structs with named fields";
-                                    cx.error_spanned_by(enum_token, msg);
+                                    cx.syn_error(meta.error(msg));
                                 }
-                                syn::Data::Union(syn::DataUnion { union_token, .. }) => {
+                                syn::Data::Union(_) => {
                                     let msg = "#[serde(default = \"...\")] can only be used on structs with named fields";
-                                    cx.error_spanned_by(union_token, msg);
+                                    cx.syn_error(meta.error(msg));
                                 }
                             }
                         }
@@ -383,13 +435,13 @@ impl Container {
                                     cx.error_spanned_by(fields, msg);
                                 }
                             },
-                            syn::Data::Enum(syn::DataEnum { enum_token, .. }) => {
+                            syn::Data::Enum(_) => {
                                 let msg = "#[serde(default)] can only be used on structs with named fields";
-                                cx.error_spanned_by(enum_token, msg);
+                                cx.syn_error(meta.error(msg));
                             }
-                            syn::Data::Union(syn::DataUnion { union_token, .. }) => {
+                            syn::Data::Union(_) => {
                                 let msg = "#[serde(default)] can only be used on structs with named fields";
-                                cx.error_spanned_by(union_token, msg);
+                                cx.syn_error(meta.error(msg));
                             }
                         }
                     }
@@ -405,13 +457,13 @@ impl Container {
                         syn::Data::Enum(_) => {
                             untagged.set_true(&meta.path);
                         }
-                        syn::Data::Struct(syn::DataStruct { struct_token, .. }) => {
+                        syn::Data::Struct(_) => {
                             let msg = "#[serde(untagged)] can only be used on enums";
-                            cx.error_spanned_by(struct_token, msg);
+                            cx.syn_error(meta.error(msg));
                         }
-                        syn::Data::Union(syn::DataUnion { union_token, .. }) => {
+                        syn::Data::Union(_) => {
                             let msg = "#[serde(untagged)] can only be used on enums";
-                            cx.error_spanned_by(union_token, msg);
+                            cx.syn_error(meta.error(msg));
                         }
                     }
                 } else if meta.path == TAG {
@@ -427,12 +479,12 @@ impl Container {
                                 }
                                 syn::Fields::Unnamed(_) | syn::Fields::Unit => {
                                     let msg = "#[serde(tag = \"...\")] can only be used on enums and structs with named fields";
-                                    cx.error_spanned_by(fields, msg);
+                                    cx.syn_error(meta.error(msg));
                                 }
                             },
-                            syn::Data::Union(syn::DataUnion { union_token, .. }) => {
+                            syn::Data::Union(_) => {
                                 let msg = "#[serde(tag = \"...\")] can only be used on enums and structs with named fields";
-                                cx.error_spanned_by(union_token, msg);
+                                cx.syn_error(meta.error(msg));
                             }
                         }
                     }
@@ -443,13 +495,13 @@ impl Container {
                             syn::Data::Enum(_) => {
                                 content.set(&meta.path, s.value());
                             }
-                            syn::Data::Struct(syn::DataStruct { struct_token, .. }) => {
+                            syn::Data::Struct(_) => {
                                 let msg = "#[serde(content = \"...\")] can only be used on enums";
-                                cx.error_spanned_by(struct_token, msg);
+                                cx.syn_error(meta.error(msg));
                             }
-                            syn::Data::Union(syn::DataUnion { union_token, .. }) => {
+                            syn::Data::Union(_) => {
                                 let msg = "#[serde(content = \"...\")] can only be used on enums";
-                                cx.error_spanned_by(union_token, msg);
+                                cx.syn_error(meta.error(msg));
                             }
                         }
                     }
@@ -528,6 +580,10 @@ impl Container {
                 serialize: rename_all_ser_rule.get().unwrap_or(RenameRule::None),
                 deserialize: rename_all_de_rule.get().unwrap_or(RenameRule::None),
             },
+            rename_all_fields_rules: RenameAllRules {
+                serialize: rename_all_fields_ser_rule.get().unwrap_or(RenameRule::None),
+                deserialize: rename_all_fields_de_rule.get().unwrap_or(RenameRule::None),
+            },
             ser_bound: ser_bound.get(),
             de_bound: de_bound.get(),
             tag: decide_tag(cx, item, untagged, internal_tag, content),
@@ -547,8 +603,12 @@ impl Container {
         &self.name
     }
 
-    pub fn rename_all_rules(&self) -> &RenameAllRules {
-        &self.rename_all_rules
+    pub fn rename_all_rules(&self) -> RenameAllRules {
+        self.rename_all_rules
+    }
+
+    pub fn rename_all_fields_rules(&self) -> RenameAllRules {
+        self.rename_all_fields_rules
     }
 
     pub fn transparent(&self) -> bool {
@@ -921,7 +981,7 @@ impl Variant {
         self.name.deserialize_aliases()
     }
 
-    pub fn rename_by_rules(&mut self, rules: &RenameAllRules) {
+    pub fn rename_by_rules(&mut self, rules: RenameAllRules) {
         if !self.name.serialize_renamed {
             self.name.serialize = rules.serialize.apply_to_variant(&self.name.serialize);
         }
@@ -930,8 +990,8 @@ impl Variant {
         }
     }
 
-    pub fn rename_all_rules(&self) -> &RenameAllRules {
-        &self.rename_all_rules
+    pub fn rename_all_rules(&self) -> RenameAllRules {
+        self.rename_all_rules
     }
 
     pub fn ser_bound(&self) -> Option<&[syn::WherePredicate]> {
@@ -1260,7 +1320,7 @@ impl Field {
         self.name.deserialize_aliases()
     }
 
-    pub fn rename_by_rules(&mut self, rules: &RenameAllRules) {
+    pub fn rename_by_rules(&mut self, rules: RenameAllRules) {
         if !self.name.serialize_renamed {
             self.name.serialize = rules.serialize.apply_to_field(&self.name.serialize);
         }

serde_derive/src/internals/case.rs

@@ -1,13 +1,8 @@
 //! Code to convert the Rust-styled field/variant (e.g. `my_field`, `MyType`) to the
 //! case of the source (e.g. `my-field`, `MY_FIELD`).
 
-// See https://users.rust-lang.org/t/psa-dealing-with-warning-unused-import-std-ascii-asciiext-in-today-s-nightly/13726
-#[allow(deprecated, unused_imports)]
-use std::ascii::AsciiExt;
-
-use std::fmt::{self, Debug, Display};
-
 use self::RenameRule::*;
+use std::fmt::{self, Debug, Display};
 
 /// The different possible ways to change case of fields in a struct, or variants in an enum.
 #[derive(Copy, Clone, PartialEq)]
@@ -59,8 +54,8 @@ impl RenameRule {
     }
 
     /// Apply a renaming rule to an enum variant, returning the version expected in the source.
-    pub fn apply_to_variant(&self, variant: &str) -> String {
-        match *self {
+    pub fn apply_to_variant(self, variant: &str) -> String {
+        match self {
             None | PascalCase => variant.to_owned(),
             LowerCase => variant.to_ascii_lowercase(),
             UpperCase => variant.to_ascii_uppercase(),
@@ -84,8 +79,8 @@ impl RenameRule {
     }
 
     /// Apply a renaming rule to a struct field, returning the version expected in the source.
-    pub fn apply_to_field(&self, field: &str) -> String {
-        match *self {
+    pub fn apply_to_field(self, field: &str) -> String {
+        match self {
             None | LowerCase | SnakeCase => field.to_owned(),
             UpperCase => field.to_ascii_uppercase(),
             PascalCase => {
@@ -112,6 +107,14 @@ impl RenameRule {
             ScreamingKebabCase => ScreamingSnakeCase.apply_to_field(field).replace('_', "-"),
         }
     }
+
+    /// Returns the `RenameRule` if it is not `None`, `rule_b` otherwise.
+    pub fn or(self, rule_b: Self) -> Self {
+        match self {
+            None => rule_b,
+            _ => self,
+        }
+    }
 }
 
 pub struct ParseError<'a> {

serde_derive/src/internals/check.rs

@@ -1,6 +1,6 @@
-use internals::ast::{Container, Data, Field, Style};
-use internals::attr::{Identifier, TagType};
-use internals::{ungroup, Ctxt, Derive};
+use crate::internals::ast::{Container, Data, Field, Style};
+use crate::internals::attr::{Identifier, TagType};
+use crate::internals::{ungroup, Ctxt, Derive};
 use syn::{Member, Type};
 
 // Cross-cutting checks that require looking at more than a single attrs object.
@@ -285,8 +285,10 @@ fn check_internal_tag_field_name_conflict(cx: &Ctxt, cont: &Container) {
         match variant.style {
             Style::Struct => {
                 for field in &variant.fields {
-                    let check_ser = !field.attrs.skip_serializing();
-                    let check_de = !field.attrs.skip_deserializing();
+                    let check_ser =
+                        !(field.attrs.skip_serializing() || variant.attrs.skip_serializing());
+                    let check_de =
+                        !(field.attrs.skip_deserializing() || variant.attrs.skip_deserializing());
                     let name = field.attrs.name();
                     let ser_name = name.serialize_name();
 

serde_derive/src/internals/ctxt.rs

@@ -2,7 +2,6 @@ use quote::ToTokens;
 use std::cell::RefCell;
 use std::fmt::Display;
 use std::thread;
-use syn;
 
 /// A type to collect errors together and format them.
 ///

serde_derive/src/internals/mod.rs

@@ -1,19 +1,18 @@
 pub mod ast;
 pub mod attr;
 
-mod ctxt;
-pub use self::ctxt::Ctxt;
-
-mod receiver;
-pub use self::receiver::replace_receiver;
-
 mod case;
 mod check;
+mod ctxt;
+mod receiver;
 mod respan;
 mod symbol;
 
 use syn::Type;
 
+pub use self::ctxt::Ctxt;
+pub use self::receiver::replace_receiver;
+
 #[derive(Copy, Clone)]
 pub enum Derive {
     Serialize,

serde_derive/src/internals/receiver.rs

@@ -1,11 +1,11 @@
-use internals::respan::respan;
+use crate::internals::respan::respan;
 use proc_macro2::Span;
 use quote::ToTokens;
 use std::mem;
 use syn::punctuated::Punctuated;
 use syn::{
     parse_quote, Data, DeriveInput, Expr, ExprPath, GenericArgument, GenericParam, Generics, Macro,
-    Path, PathArguments, QSelf, ReturnType, Type, TypeParamBound, TypePath, WherePredicate,
+    Path, PathArguments, QSelf, ReturnType, Token, Type, TypeParamBound, TypePath, WherePredicate,
 };
 
 pub fn replace_receiver(input: &mut DeriveInput) {

serde_derive/src/internals/symbol.rs

@@ -23,6 +23,7 @@ pub const OTHER: Symbol = Symbol("other");
 pub const REMOTE: Symbol = Symbol("remote");
 pub const RENAME: Symbol = Symbol("rename");
 pub const RENAME_ALL: Symbol = Symbol("rename_all");
+pub const RENAME_ALL_FIELDS: Symbol = Symbol("rename_all_fields");
 pub const REPR: Symbol = Symbol("repr");
 pub const SERDE: Symbol = Symbol("serde");
 pub const SERIALIZE: Symbol = Symbol("serialize");

serde_derive/src/lib.rs

@@ -13,8 +13,7 @@
 //!
 //! [https://serde.rs/derive.html]: https://serde.rs/derive.html
 
-#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.170")]
-#![allow(unknown_lints, bare_trait_objects)]
+#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.178")]
 // Ignored clippy lints
 #![allow(
     // clippy false positive: https://github.com/rust-lang/rust-clippy/issues/7054
@@ -63,17 +62,22 @@
 )]
 #![cfg_attr(all(test, exhaustive), feature(non_exhaustive_omitted_patterns_lint))]
 
-#[macro_use]
+extern crate proc_macro2;
 extern crate quote;
-#[macro_use]
 extern crate syn;
 
+#[cfg(not(precompiled))]
 extern crate proc_macro;
-extern crate proc_macro2;
+#[cfg(precompiled)]
+extern crate proc_macro2 as proc_macro;
 
 mod internals;
 
 use proc_macro::TokenStream;
+#[cfg(precompiled)]
+use std::sync::atomic::AtomicBool;
+#[cfg(not(precompiled))]
+use syn::parse_macro_input;
 use syn::DeriveInput;
 
 #[macro_use]
@@ -86,9 +90,21 @@ mod dummy;
 mod pretend;
 mod ser;
 mod this;
-mod try;
 
-#[proc_macro_derive(Serialize, attributes(serde))]
+#[cfg(precompiled)]
+macro_rules! parse_macro_input {
+    ($tokenstream:ident as $ty:ty) => {
+        match syn::parse2::<$ty>($tokenstream) {
+            Ok(data) => data,
+            Err(err) => return err.to_compile_error(),
+        }
+    };
+}
+
+#[cfg(precompiled)]
+pub static DESERIALIZE_IN_PLACE: AtomicBool = AtomicBool::new(false);
+
+#[cfg_attr(not(precompiled), proc_macro_derive(Serialize, attributes(serde)))]
 pub fn derive_serialize(input: TokenStream) -> TokenStream {
     let mut input = parse_macro_input!(input as DeriveInput);
     ser::expand_derive_serialize(&mut input)
@@ -96,7 +112,7 @@ pub fn derive_serialize(input: TokenStream) -> TokenStream {
         .into()
 }
 
-#[proc_macro_derive(Deserialize, attributes(serde))]
+#[cfg_attr(not(precompiled), proc_macro_derive(Deserialize, attributes(serde)))]
 pub fn derive_deserialize(input: TokenStream) -> TokenStream {
     let mut input = parse_macro_input!(input as DeriveInput);
     de::expand_derive_deserialize(&mut input)

serde_derive/src/pretend.rs

@@ -1,7 +1,6 @@
+use crate::internals::ast::{Container, Data, Field, Style, Variant};
 use proc_macro2::TokenStream;
-use quote::format_ident;
-
-use internals::ast::{Container, Data, Field, Style, Variant};
+use quote::{format_ident, quote};
 
 // Suppress dead_code warnings that would otherwise appear when using a remote
 // derive. Other than this pretend code, a struct annotated with remote derive

serde_derive/src/ser.rs

@@ -1,14 +1,11 @@
+use crate::fragment::{Fragment, Match, Stmts};
+use crate::internals::ast::{Container, Data, Field, Style, Variant};
+use crate::internals::{attr, replace_receiver, Ctxt, Derive};
+use crate::{bound, dummy, pretend, this};
 use proc_macro2::{Span, TokenStream};
+use quote::{quote, quote_spanned};
 use syn::spanned::Spanned;
-use syn::{self, Ident, Index, Member};
-
-use bound;
-use dummy;
-use fragment::{Fragment, Match, Stmts};
-use internals::ast::{Container, Data, Field, Style, Variant};
-use internals::{attr, replace_receiver, Ctxt, Derive};
-use pretend;
-use this;
+use syn::{parse_quote, Ident, Index, Member};
 
 pub fn expand_derive_serialize(input: &mut syn::DeriveInput) -> syn::Result<TokenStream> {
     replace_receiver(input);
@@ -285,7 +282,7 @@ fn serialize_tuple_struct(
         .fold(quote!(0), |sum, expr| quote!(#sum + #expr));
 
     quote_block! {
-        let #let_mut __serde_state = try!(_serde::Serializer::serialize_tuple_struct(__serializer, #type_name, #len));
+        let #let_mut __serde_state = _serde::Serializer::serialize_tuple_struct(__serializer, #type_name, #len)?;
         #(#serialize_stmts)*
         _serde::ser::SerializeTupleStruct::end(__serde_state)
     }
@@ -307,7 +304,7 @@ fn serialize_struct_tag_field(cattrs: &attr::Container, struct_trait: &StructTra
             let type_name = cattrs.name().serialize_name();
             let func = struct_trait.serialize_field(Span::call_site());
             quote! {
-                try!(#func(&mut __serde_state, #tag, #type_name));
+                #func(&mut __serde_state, #tag, #type_name)?;
             }
         }
         _ => quote! {},
@@ -348,7 +345,7 @@ fn serialize_struct_as_struct(
         );
 
     quote_block! {
-        let #let_mut __serde_state = try!(_serde::Serializer::serialize_struct(__serializer, #type_name, #len));
+        let #let_mut __serde_state = _serde::Serializer::serialize_struct(__serializer, #type_name, #len)?;
         #tag_field
         #(#serialize_fields)*
         _serde::ser::SerializeStruct::end(__serde_state)
@@ -392,7 +389,7 @@ fn serialize_struct_as_map(
     };
 
     quote_block! {
-        let #let_mut __serde_state = try!(_serde::Serializer::serialize_map(__serializer, #len));
+        let #let_mut __serde_state = _serde::Serializer::serialize_map(__serializer, #len)?;
         #tag_field
         #(#serialize_fields)*
         _serde::ser::SerializeMap::end(__serde_state)
@@ -596,10 +593,10 @@ fn serialize_internally_tagged_variant(
     match effective_style(variant) {
         Style::Unit => {
             quote_block! {
-                let mut __struct = try!(_serde::Serializer::serialize_struct(
-                    __serializer, #type_name, 1));
-                try!(_serde::ser::SerializeStruct::serialize_field(
-                    &mut __struct, #tag, #variant_name));
+                let mut __struct = _serde::Serializer::serialize_struct(
+                    __serializer, #type_name, 1)?;
+                _serde::ser::SerializeStruct::serialize_field(
+                    &mut __struct, #tag, #variant_name)?;
                 _serde::ser::SerializeStruct::end(__struct)
             }
         }
@@ -653,10 +650,10 @@ fn serialize_adjacently_tagged_variant(
         match effective_style(variant) {
             Style::Unit => {
                 return quote_block! {
-                    let mut __struct = try!(_serde::Serializer::serialize_struct(
-                        __serializer, #type_name, 1));
-                    try!(_serde::ser::SerializeStruct::serialize_field(
-                        &mut __struct, #tag, #variant_name));
+                    let mut __struct = _serde::Serializer::serialize_struct(
+                        __serializer, #type_name, 1)?;
+                    _serde::ser::SerializeStruct::serialize_field(
+                        &mut __struct, #tag, #variant_name)?;
                     _serde::ser::SerializeStruct::end(__struct)
                 };
             }
@@ -670,12 +667,12 @@ fn serialize_adjacently_tagged_variant(
                 let span = field.original.span();
                 let func = quote_spanned!(span=> _serde::ser::SerializeStruct::serialize_field);
                 return quote_block! {
-                    let mut __struct = try!(_serde::Serializer::serialize_struct(
-                        __serializer, #type_name, 2));
-                    try!(_serde::ser::SerializeStruct::serialize_field(
-                        &mut __struct, #tag, #variant_name));
-                    try!(#func(
-                        &mut __struct, #content, #field_expr));
+                    let mut __struct = _serde::Serializer::serialize_struct(
+                        __serializer, #type_name, 2)?;
+                    _serde::ser::SerializeStruct::serialize_field(
+                        &mut __struct, #tag, #variant_name)?;
+                    #func(
+                        &mut __struct, #content, #field_expr)?;
                     _serde::ser::SerializeStruct::end(__struct)
                 };
             }
@@ -735,15 +732,15 @@ fn serialize_adjacently_tagged_variant(
             }
         }
 
-        let mut __struct = try!(_serde::Serializer::serialize_struct(
-            __serializer, #type_name, 2));
-        try!(_serde::ser::SerializeStruct::serialize_field(
-            &mut __struct, #tag, #variant_name));
-        try!(_serde::ser::SerializeStruct::serialize_field(
+        let mut __struct = _serde::Serializer::serialize_struct(
+            __serializer, #type_name, 2)?;
+        _serde::ser::SerializeStruct::serialize_field(
+            &mut __struct, #tag, #variant_name)?;
+        _serde::ser::SerializeStruct::serialize_field(
             &mut __struct, #content, &__AdjacentlyTagged {
                 data: (#(#fields_ident,)*),
                 phantom: _serde::__private::PhantomData::<#this_type #ty_generics>,
-            }));
+            })?;
         _serde::ser::SerializeStruct::end(__struct)
     }
 }
@@ -833,21 +830,21 @@ fn serialize_tuple_variant(
             variant_name,
         } => {
             quote_block! {
-                let #let_mut __serde_state = try!(_serde::Serializer::serialize_tuple_variant(
+                let #let_mut __serde_state = _serde::Serializer::serialize_tuple_variant(
                     __serializer,
                     #type_name,
                     #variant_index,
                     #variant_name,
-                    #len));
+                    #len)?;
                 #(#serialize_stmts)*
                 _serde::ser::SerializeTupleVariant::end(__serde_state)
             }
         }
         TupleVariant::Untagged => {
             quote_block! {
-                let #let_mut __serde_state = try!(_serde::Serializer::serialize_tuple(
+                let #let_mut __serde_state = _serde::Serializer::serialize_tuple(
                     __serializer,
-                    #len));
+                    #len)?;
                 #(#serialize_stmts)*
                 _serde::ser::SerializeTuple::end(__serde_state)
             }
@@ -910,40 +907,40 @@ fn serialize_struct_variant(
             variant_name,
         } => {
             quote_block! {
-                let #let_mut __serde_state = try!(_serde::Serializer::serialize_struct_variant(
+                let #let_mut __serde_state = _serde::Serializer::serialize_struct_variant(
                     __serializer,
                     #name,
                     #variant_index,
                     #variant_name,
                     #len,
-                ));
+                )?;
                 #(#serialize_fields)*
                 _serde::ser::SerializeStructVariant::end(__serde_state)
             }
         }
         StructVariant::InternallyTagged { tag, variant_name } => {
             quote_block! {
-                let mut __serde_state = try!(_serde::Serializer::serialize_struct(
+                let mut __serde_state = _serde::Serializer::serialize_struct(
                     __serializer,
                     #name,
                     #len + 1,
-                ));
-                try!(_serde::ser::SerializeStruct::serialize_field(
+                )?;
+                _serde::ser::SerializeStruct::serialize_field(
                     &mut __serde_state,
                     #tag,
                     #variant_name,
-                ));
+                )?;
                 #(#serialize_fields)*
                 _serde::ser::SerializeStruct::end(__serde_state)
             }
         }
         StructVariant::Untagged => {
             quote_block! {
-                let #let_mut __serde_state = try!(_serde::Serializer::serialize_struct(
+                let #let_mut __serde_state = _serde::Serializer::serialize_struct(
                     __serializer,
                     #name,
                     #len,
-                ));
+                )?;
                 #(#serialize_fields)*
                 _serde::ser::SerializeStruct::end(__serde_state)
             }
@@ -993,9 +990,9 @@ fn serialize_struct_variant_with_flatten(
                         __S: _serde::Serializer,
                     {
                         let (#(#members,)*) = self.data;
-                        let #let_mut __serde_state = try!(_serde::Serializer::serialize_map(
+                        let #let_mut __serde_state = _serde::Serializer::serialize_map(
                             __serializer,
-                            _serde::__private::None));
+                            _serde::__private::None)?;
                         #(#serialize_fields)*
                         _serde::ser::SerializeMap::end(__serde_state)
                     }
@@ -1014,23 +1011,23 @@ fn serialize_struct_variant_with_flatten(
         }
         StructVariant::InternallyTagged { tag, variant_name } => {
             quote_block! {
-                let #let_mut __serde_state = try!(_serde::Serializer::serialize_map(
+                let #let_mut __serde_state = _serde::Serializer::serialize_map(
                     __serializer,
-                    _serde::__private::None));
-                try!(_serde::ser::SerializeMap::serialize_entry(
+                    _serde::__private::None)?;
+                _serde::ser::SerializeMap::serialize_entry(
                     &mut __serde_state,
                     #tag,
                     #variant_name,
-                ));
+                )?;
                 #(#serialize_fields)*
                 _serde::ser::SerializeMap::end(__serde_state)
             }
         }
         StructVariant::Untagged => {
             quote_block! {
-                let #let_mut __serde_state = try!(_serde::Serializer::serialize_map(
+                let #let_mut __serde_state = _serde::Serializer::serialize_map(
                     __serializer,
-                    _serde::__private::None));
+                    _serde::__private::None)?;
                 #(#serialize_fields)*
                 _serde::ser::SerializeMap::end(__serde_state)
             }
@@ -1075,7 +1072,7 @@ fn serialize_tuple_struct_visitor(
             let span = field.original.span();
             let func = tuple_trait.serialize_element(span);
             let ser = quote! {
-                try!(#func(&mut __serde_state, #field_expr));
+                #func(&mut __serde_state, #field_expr)?;
             };
 
             match skip {
@@ -1119,12 +1116,12 @@ fn serialize_struct_visitor(
             let ser = if field.attrs.flatten() {
                 let func = quote_spanned!(span=> _serde::Serialize::serialize);
                 quote! {
-                    try!(#func(&#field_expr, _serde::__private::ser::FlatMapSerializer(&mut __serde_state)));
+                    #func(&#field_expr, _serde::__private::ser::FlatMapSerializer(&mut __serde_state))?;
                 }
             } else {
                 let func = struct_trait.serialize_field(span);
                 quote! {
-                    try!(#func(&mut __serde_state, #key_expr, #field_expr));
+                    #func(&mut __serde_state, #key_expr, #field_expr)?;
                 }
             };
 
@@ -1136,7 +1133,7 @@ fn serialize_struct_visitor(
                             if !#skip {
                                 #ser
                             } else {
-                                try!(#skip_func(&mut __serde_state, #key_expr));
+                                #skip_func(&mut __serde_state, #key_expr)?;
                             }
                         }
                     } else {
@@ -1236,7 +1233,7 @@ fn wrap_serialize_with(
 
 // Serialization of an empty struct results in code like:
 //
-//     let mut __serde_state = try!(serializer.serialize_struct("S", 0));
+//     let mut __serde_state = serializer.serialize_struct("S", 0)?;
 //     _serde::ser::SerializeStruct::end(__serde_state)
 //
 // where we want to omit the `mut` to avoid a warning.

serde_derive/src/this.rs

@@ -1,4 +1,4 @@
-use internals::ast::Container;
+use crate::internals::ast::Container;
 use syn::{Path, PathArguments, Token};
 
 pub fn this_type(cont: &Container) -> Path {

serde_derive/src/try.rs

@@ -1,24 +0,0 @@
-use proc_macro2::{Punct, Spacing, TokenStream};
-
-// None of our generated code requires the `From::from` error conversion
-// performed by the standard library's `try!` macro. With this simplified macro
-// we see a significant improvement in type checking and borrow checking time of
-// the generated code and a slight improvement in binary size.
-pub fn replacement() -> TokenStream {
-    // Cannot pass `$expr` to `quote!` prior to Rust 1.17.0 so interpolate it.
-    let dollar = Punct::new('$', Spacing::Alone);
-
-    quote! {
-        #[allow(unused_macros)]
-        macro_rules! try {
-            (#dollar __expr:expr) => {
-                match #dollar __expr {
-                    _serde::__private::Ok(__val) => __val,
-                    _serde::__private::Err(__err) => {
-                        return _serde::__private::Err(__err);
-                    }
-                }
-            }
-        }
-    }
-}

serde_derive_internals/Cargo.toml

@@ -4,8 +4,8 @@ version = "0.28.0" # remember to update html_root_url
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 description = "AST representation used by Serde derive macros. Unstable."
 documentation = "https://docs.rs/serde_derive_internals"
+exclude = ["build.rs"]
 homepage = "https://serde.rs"
-include = ["lib.rs", "src/**/*.rs", "LICENSE-APACHE", "LICENSE-MIT"]
 keywords = ["serde", "serialization"]
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/serde-rs/serde"
@@ -21,3 +21,4 @@ syn = { version = "2.0.25", default-features = false, features = ["clone-impls",
 
 [package.metadata.docs.rs]
 targets = ["x86_64-unknown-linux-gnu"]
+rustdoc-args = ["--generate-link-to-definition"]

serde_derive_internals/lib.rs

@@ -1,5 +1,4 @@
 #![doc(html_root_url = "https://docs.rs/serde_derive_internals/0.28.0")]
-#![allow(unknown_lints, bare_trait_objects)]
 // Ignored clippy lints
 #![allow(
     clippy::cognitive_complexity,
@@ -30,6 +29,7 @@
     clippy::missing_errors_doc,
     clippy::module_name_repetitions,
     clippy::must_use_candidate,
+    clippy::return_self_not_must_use,
     clippy::similar_names,
     clippy::single_match_else,
     clippy::struct_excessive_bools,
@@ -38,11 +38,9 @@
     clippy::wildcard_imports
 )]
 
-#[macro_use]
-extern crate syn;
-
 extern crate proc_macro2;
 extern crate quote;
+extern crate syn;
 
 #[cfg_attr(serde_build_from_git, path = "../serde_derive/src/internals/mod.rs")]
 #[cfg_attr(not(serde_build_from_git), path = "src/mod.rs")]

serde_test/Cargo.toml

@@ -1,28 +0,0 @@
-[package]
-name = "serde_test"
-version = "1.0.170" # remember to update html_root_url
-authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
-build = "build.rs"
-categories = ["development-tools::testing"]
-description = "Token De/Serializer for testing De/Serialize implementations"
-documentation = "https://docs.rs/serde_test"
-homepage = "https://serde.rs"
-include = ["build.rs", "src/**/*.rs", "crates-io.md", "README.md", "LICENSE-APACHE", "LICENSE-MIT"]
-keywords = ["serde", "serialization", "testing", "dev-dependencies"]
-license = "MIT OR Apache-2.0"
-readme = "crates-io.md"
-repository = "https://github.com/serde-rs/serde"
-rust-version = "1.19"
-
-[dependencies]
-serde = { version = "1.0.60", path = "../serde" }
-
-[dev-dependencies]
-serde = { version = "1.0", path = "../serde", features = ["rc"] }
-serde_derive = { version = "1.0", path = "../serde_derive" }
-
-[lib]
-doc-scrape-examples = false
-
-[package.metadata.docs.rs]
-targets = ["x86_64-unknown-linux-gnu"]

serde_test/LICENSE-APACHE

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

serde_test/LICENSE-MIT

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

serde_test/README.md

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

serde_test/build.rs

@@ -1,50 +0,0 @@
-use std::env;
-use std::process::Command;
-use std::str::{self, FromStr};
-
-// The rustc-cfg strings below are *not* public API. Please let us know by
-// opening a GitHub issue if your build environment requires some way to enable
-// these cfgs other than by executing our build script.
-fn main() {
-    println!("cargo:rerun-if-changed=build.rs");
-
-    let minor = match rustc_minor_version() {
-        Some(minor) => minor,
-        None => return,
-    };
-
-    // #[track_caller] stabilized in Rust 1.46:
-    // https://blog.rust-lang.org/2020/08/27/Rust-1.46.0.html#track_caller
-    if minor < 46 {
-        println!("cargo:rustc-cfg=no_track_caller");
-    }
-}
-
-fn rustc_minor_version() -> Option<u32> {
-    let rustc = match env::var_os("RUSTC") {
-        Some(rustc) => rustc,
-        None => return None,
-    };
-
-    let output = match Command::new(rustc).arg("--version").output() {
-        Ok(output) => output,
-        Err(_) => return None,
-    };
-
-    let version = match str::from_utf8(&output.stdout) {
-        Ok(version) => version,
-        Err(_) => return None,
-    };
-
-    let mut pieces = version.split('.');
-    if pieces.next() != Some("rustc 1") {
-        return None;
-    }
-
-    let next = match pieces.next() {
-        Some(next) => next,
-        None => return None,
-    };
-
-    u32::from_str(next).ok()
-}

serde_test/crates-io.md

@@ -1 +0,0 @@
-../crates-io.md

serde_test/src/assert.rs

@@ -1,237 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-use de::Deserializer;
-use ser::Serializer;
-use token::Token;
-
-use std::fmt::Debug;
-
-/// Runs both `assert_ser_tokens` and `assert_de_tokens`.
-///
-/// ```edition2021
-/// # use serde_derive::{Deserialize, Serialize};
-/// # use serde_test::{assert_tokens, Token};
-/// #
-/// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-/// struct S {
-///     a: u8,
-///     b: u8,
-/// }
-///
-/// let s = S { a: 0, b: 0 };
-/// assert_tokens(
-///     &s,
-///     &[
-///         Token::Struct { name: "S", len: 2 },
-///         Token::Str("a"),
-///         Token::U8(0),
-///         Token::Str("b"),
-///         Token::U8(0),
-///         Token::StructEnd,
-///     ],
-/// );
-/// ```
-#[cfg_attr(not(no_track_caller), track_caller)]
-pub fn assert_tokens<'de, T>(value: &T, tokens: &'de [Token])
-where
-    T: Serialize + Deserialize<'de> + PartialEq + Debug,
-{
-    assert_ser_tokens(value, tokens);
-    assert_de_tokens(value, tokens);
-}
-
-/// Asserts that `value` serializes to the given `tokens`.
-///
-/// ```edition2021
-/// # use serde_derive::{Deserialize, Serialize};
-/// # use serde_test::{assert_ser_tokens, Token};
-/// #
-/// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-/// struct S {
-///     a: u8,
-///     b: u8,
-/// }
-///
-/// let s = S { a: 0, b: 0 };
-/// assert_ser_tokens(
-///     &s,
-///     &[
-///         Token::Struct { name: "S", len: 2 },
-///         Token::Str("a"),
-///         Token::U8(0),
-///         Token::Str("b"),
-///         Token::U8(0),
-///         Token::StructEnd,
-///     ],
-/// );
-/// ```
-#[cfg_attr(not(no_track_caller), track_caller)]
-pub fn assert_ser_tokens<T: ?Sized>(value: &T, tokens: &[Token])
-where
-    T: Serialize,
-{
-    let mut ser = Serializer::new(tokens);
-    match value.serialize(&mut ser) {
-        Ok(_) => {}
-        Err(err) => panic!("value failed to serialize: {}", err),
-    }
-
-    if ser.remaining() > 0 {
-        panic!("{} remaining tokens", ser.remaining());
-    }
-}
-
-/// Asserts that `value` serializes to the given `tokens`, and then yields
-/// `error`.
-///
-/// ```edition2021
-/// use serde_derive::Serialize;
-/// use serde_test::{assert_ser_tokens_error, Token};
-/// use std::sync::{Arc, Mutex};
-/// use std::thread;
-///
-/// #[derive(Serialize)]
-/// struct Example {
-///     lock: Arc<Mutex<u32>>,
-/// }
-///
-/// fn main() {
-///     let example = Example {
-///         lock: Arc::new(Mutex::new(0)),
-///     };
-///     let lock = example.lock.clone();
-///
-///     let thread = thread::spawn(move || {
-///         // This thread will acquire the mutex first, unwrapping the result
-///         // of `lock` because the lock has not been poisoned.
-///         let _guard = lock.lock().unwrap();
-///
-///         // This panic while holding the lock (`_guard` is in scope) will
-///         // poison the mutex.
-///         panic!()
-///     });
-///     thread.join();
-///
-///     let expected = &[
-///         Token::Struct {
-///             name: "Example",
-///             len: 1,
-///         },
-///         Token::Str("lock"),
-///     ];
-///     let error = "lock poison error while serializing";
-///     assert_ser_tokens_error(&example, expected, error);
-/// }
-/// ```
-#[cfg_attr(not(no_track_caller), track_caller)]
-pub fn assert_ser_tokens_error<T: ?Sized>(value: &T, tokens: &[Token], error: &str)
-where
-    T: Serialize,
-{
-    let mut ser = Serializer::new(tokens);
-    match value.serialize(&mut ser) {
-        Ok(_) => panic!("value serialized successfully"),
-        Err(e) => assert_eq!(e, *error),
-    }
-
-    if ser.remaining() > 0 {
-        panic!("{} remaining tokens", ser.remaining());
-    }
-}
-
-/// Asserts that the given `tokens` deserialize into `value`.
-///
-/// ```edition2021
-/// # use serde_derive::{Deserialize, Serialize};
-/// # use serde_test::{assert_de_tokens, Token};
-/// #
-/// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-/// struct S {
-///     a: u8,
-///     b: u8,
-/// }
-///
-/// let s = S { a: 0, b: 0 };
-/// assert_de_tokens(
-///     &s,
-///     &[
-///         Token::Struct { name: "S", len: 2 },
-///         Token::Str("a"),
-///         Token::U8(0),
-///         Token::Str("b"),
-///         Token::U8(0),
-///         Token::StructEnd,
-///     ],
-/// );
-/// ```
-#[cfg_attr(not(no_track_caller), track_caller)]
-pub fn assert_de_tokens<'de, T>(value: &T, tokens: &'de [Token])
-where
-    T: Deserialize<'de> + PartialEq + Debug,
-{
-    let mut de = Deserializer::new(tokens);
-    let mut deserialized_val = match T::deserialize(&mut de) {
-        Ok(v) => {
-            assert_eq!(v, *value);
-            v
-        }
-        Err(e) => panic!("tokens failed to deserialize: {}", e),
-    };
-    if de.remaining() > 0 {
-        panic!("{} remaining tokens", de.remaining());
-    }
-
-    // Do the same thing for deserialize_in_place. This isn't *great* because a
-    // no-op impl of deserialize_in_place can technically succeed here. Still,
-    // this should catch a lot of junk.
-    let mut de = Deserializer::new(tokens);
-    match T::deserialize_in_place(&mut de, &mut deserialized_val) {
-        Ok(()) => {
-            assert_eq!(deserialized_val, *value);
-        }
-        Err(e) => panic!("tokens failed to deserialize_in_place: {}", e),
-    }
-    if de.remaining() > 0 {
-        panic!("{} remaining tokens", de.remaining());
-    }
-}
-
-/// Asserts that the given `tokens` yield `error` when deserializing.
-///
-/// ```edition2021
-/// # use serde_derive::{Deserialize, Serialize};
-/// # use serde_test::{assert_de_tokens_error, Token};
-/// #
-/// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-/// #[serde(deny_unknown_fields)]
-/// struct S {
-///     a: u8,
-///     b: u8,
-/// }
-///
-/// assert_de_tokens_error::<S>(
-///     &[
-///         Token::Struct { name: "S", len: 2 },
-///         Token::Str("x"),
-///     ],
-///     "unknown field `x`, expected `a` or `b`",
-/// );
-/// ```
-#[cfg_attr(not(no_track_caller), track_caller)]
-pub fn assert_de_tokens_error<'de, T>(tokens: &'de [Token], error: &str)
-where
-    T: Deserialize<'de>,
-{
-    let mut de = Deserializer::new(tokens);
-    match T::deserialize(&mut de) {
-        Ok(_) => panic!("tokens deserialized successfully"),
-        Err(e) => assert_eq!(e, *error),
-    }
-
-    // There may be one token left if a peek caused the error
-    de.next_token_opt();
-
-    if de.remaining() > 0 {
-        panic!("{} remaining tokens", de.remaining());
-    }
-}

serde_test/src/configure.rs

@@ -1,847 +0,0 @@
-use std::fmt;
-
-use serde::ser::{
-    SerializeMap, SerializeSeq, SerializeStruct, SerializeStructVariant, SerializeTuple,
-    SerializeTupleStruct, SerializeTupleVariant,
-};
-use serde::{Deserialize, Deserializer, Serialize, Serializer};
-
-#[derive(Debug, PartialEq, Eq, PartialOrd, Ord)]
-pub struct Readable<T: ?Sized>(T);
-#[derive(Debug, PartialEq, Eq, PartialOrd, Ord)]
-pub struct Compact<T: ?Sized>(T);
-
-/// Trait to determine whether a value is represented in human-readable or
-/// compact form.
-///
-/// ```edition2021
-/// use serde::{Deserialize, Deserializer, Serialize, Serializer};
-/// use serde_test::{assert_tokens, Configure, Token};
-///
-/// #[derive(Debug, PartialEq)]
-/// struct Example(u8, u8);
-///
-/// impl Serialize for Example {
-///     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-///     where
-///         S: Serializer,
-///     {
-///         if serializer.is_human_readable() {
-///             format!("{}.{}", self.0, self.1).serialize(serializer)
-///         } else {
-///             (self.0, self.1).serialize(serializer)
-///         }
-///     }
-/// }
-///
-/// impl<'de> Deserialize<'de> for Example {
-///     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-///     where
-///         D: Deserializer<'de>,
-///     {
-///         use serde::de::Error;
-///         if deserializer.is_human_readable() {
-///             let s = String::deserialize(deserializer)?;
-///             let parts: Vec<_> = s.split('.').collect();
-///             Ok(Example(
-///                 parts[0].parse().map_err(D::Error::custom)?,
-///                 parts[1].parse().map_err(D::Error::custom)?,
-///             ))
-///         } else {
-///             let (x, y) = Deserialize::deserialize(deserializer)?;
-///             Ok(Example(x, y))
-///         }
-///     }
-/// }
-///
-/// fn main() {
-///     assert_tokens(
-///         &Example(1, 0).compact(),
-///         &[
-///             Token::Tuple { len: 2 },
-///             Token::U8(1),
-///             Token::U8(0),
-///             Token::TupleEnd,
-///         ],
-///     );
-///     assert_tokens(&Example(1, 0).readable(), &[Token::Str("1.0")]);
-/// }
-/// ```
-pub trait Configure {
-    /// Marks `self` as using `is_human_readable == true`
-    fn readable(self) -> Readable<Self>
-    where
-        Self: Sized,
-    {
-        Readable(self)
-    }
-    /// Marks `self` as using `is_human_readable == false`
-    fn compact(self) -> Compact<Self>
-    where
-        Self: Sized,
-    {
-        Compact(self)
-    }
-}
-
-impl<T: ?Sized> Configure for T {}
-
-impl<T: ?Sized> Serialize for Readable<T>
-where
-    T: Serialize,
-{
-    #[inline]
-    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-    where
-        S: Serializer,
-    {
-        self.0.serialize(Readable(serializer))
-    }
-}
-impl<T: ?Sized> Serialize for Compact<T>
-where
-    T: Serialize,
-{
-    #[inline]
-    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-    where
-        S: Serializer,
-    {
-        self.0.serialize(Compact(serializer))
-    }
-}
-impl<'de, T> Deserialize<'de> for Readable<T>
-where
-    T: Deserialize<'de>,
-{
-    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-    where
-        D: Deserializer<'de>,
-    {
-        T::deserialize(Readable(deserializer)).map(Readable)
-    }
-}
-impl<'de, T> Deserialize<'de> for Compact<T>
-where
-    T: Deserialize<'de>,
-{
-    fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-    where
-        D: Deserializer<'de>,
-    {
-        T::deserialize(Compact(deserializer)).map(Compact)
-    }
-}
-
-impl<'de, T> DeserializeSeed<'de> for Readable<T>
-where
-    T: DeserializeSeed<'de>,
-{
-    type Value = T::Value;
-
-    fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
-    where
-        D: Deserializer<'de>,
-    {
-        self.0.deserialize(Readable(deserializer))
-    }
-}
-impl<'de, T> DeserializeSeed<'de> for Compact<T>
-where
-    T: DeserializeSeed<'de>,
-{
-    type Value = T::Value;
-
-    fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
-    where
-        D: Deserializer<'de>,
-    {
-        self.0.deserialize(Compact(deserializer))
-    }
-}
-
-macro_rules! forward_method {
-    ($name: ident (self $(, $arg: ident : $arg_type: ty)* ) -> $return_type: ty) => {
-        fn $name (self $(, $arg : $arg_type)* ) -> $return_type {
-            (self.0).$name( $($arg),* )
-        }
-    };
-}
-
-macro_rules! forward_serialize_methods {
-    ( $( $name: ident $arg_type: ty ),* ) => {
-        $(
-            forward_method!($name(self, v : $arg_type) -> Result<Self::Ok, Self::Error>);
-        )*
-    };
-}
-
-macro_rules! impl_serializer {
-    ($wrapper:ident, $is_human_readable:expr) => {
-        impl<S> Serializer for $wrapper<S>
-        where
-            S: Serializer,
-        {
-            type Ok = S::Ok;
-            type Error = S::Error;
-
-            type SerializeSeq = $wrapper<S::SerializeSeq>;
-            type SerializeTuple = $wrapper<S::SerializeTuple>;
-            type SerializeTupleStruct = $wrapper<S::SerializeTupleStruct>;
-            type SerializeTupleVariant = $wrapper<S::SerializeTupleVariant>;
-            type SerializeMap = $wrapper<S::SerializeMap>;
-            type SerializeStruct = $wrapper<S::SerializeStruct>;
-            type SerializeStructVariant = $wrapper<S::SerializeStructVariant>;
-
-            fn is_human_readable(&self) -> bool {
-                $is_human_readable
-            }
-
-            forward_serialize_methods! {
-                serialize_bool bool,
-                serialize_i8 i8,
-                serialize_i16 i16,
-                serialize_i32 i32,
-                serialize_i64 i64,
-                serialize_u8 u8,
-                serialize_u16 u16,
-                serialize_u32 u32,
-                serialize_u64 u64,
-                serialize_f32 f32,
-                serialize_f64 f64,
-                serialize_char char,
-                serialize_str &str,
-                serialize_bytes &[u8],
-                serialize_unit_struct &'static str
-
-            }
-
-            fn serialize_unit(self) -> Result<S::Ok, S::Error> {
-                self.0.serialize_unit()
-            }
-
-            fn serialize_unit_variant(
-                self,
-                name: &'static str,
-                variant_index: u32,
-                variant: &'static str,
-            ) -> Result<S::Ok, S::Error> {
-                self.0.serialize_unit_variant(name, variant_index, variant)
-            }
-
-            fn serialize_newtype_struct<T: ?Sized>(
-                self,
-                name: &'static str,
-                value: &T,
-            ) -> Result<S::Ok, S::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_newtype_struct(name, &$wrapper(value))
-            }
-
-            fn serialize_newtype_variant<T: ?Sized>(
-                self,
-                name: &'static str,
-                variant_index: u32,
-                variant: &'static str,
-                value: &T,
-            ) -> Result<S::Ok, S::Error>
-            where
-                T: Serialize,
-            {
-                self.0
-                    .serialize_newtype_variant(name, variant_index, variant, &$wrapper(value))
-            }
-
-            fn serialize_none(self) -> Result<S::Ok, Self::Error> {
-                self.0.serialize_none()
-            }
-
-            fn serialize_some<T: ?Sized>(self, value: &T) -> Result<S::Ok, Self::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_some(&$wrapper(value))
-            }
-
-            fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
-                self.0.serialize_seq(len).map($wrapper)
-            }
-
-            fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
-                self.0.serialize_tuple(len).map($wrapper)
-            }
-
-            fn serialize_tuple_struct(
-                self,
-                name: &'static str,
-                len: usize,
-            ) -> Result<Self::SerializeTupleStruct, Self::Error> {
-                self.0.serialize_tuple_struct(name, len).map($wrapper)
-            }
-
-            fn serialize_tuple_variant(
-                self,
-                name: &'static str,
-                variant_index: u32,
-                variant: &'static str,
-                len: usize,
-            ) -> Result<Self::SerializeTupleVariant, Self::Error> {
-                self.0
-                    .serialize_tuple_variant(name, variant_index, variant, len)
-                    .map($wrapper)
-            }
-
-            fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
-                self.0.serialize_map(len).map($wrapper)
-            }
-
-            fn serialize_struct(
-                self,
-                name: &'static str,
-                len: usize,
-            ) -> Result<Self::SerializeStruct, Self::Error> {
-                self.0.serialize_struct(name, len).map($wrapper)
-            }
-
-            fn serialize_struct_variant(
-                self,
-                name: &'static str,
-                variant_index: u32,
-                variant: &'static str,
-                len: usize,
-            ) -> Result<Self::SerializeStructVariant, Self::Error> {
-                self.0
-                    .serialize_struct_variant(name, variant_index, variant, len)
-                    .map($wrapper)
-            }
-        }
-
-        impl<S> SerializeSeq for $wrapper<S>
-        where
-            S: SerializeSeq,
-        {
-            type Ok = S::Ok;
-            type Error = S::Error;
-            fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), S::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_element(&$wrapper(value))
-            }
-            fn end(self) -> Result<S::Ok, S::Error> {
-                self.0.end()
-            }
-        }
-
-        impl<S> SerializeTuple for $wrapper<S>
-        where
-            S: SerializeTuple,
-        {
-            type Ok = S::Ok;
-            type Error = S::Error;
-            fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), S::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_element(&$wrapper(value))
-            }
-            fn end(self) -> Result<S::Ok, S::Error> {
-                self.0.end()
-            }
-        }
-
-        impl<S> SerializeTupleStruct for $wrapper<S>
-        where
-            S: SerializeTupleStruct,
-        {
-            type Ok = S::Ok;
-            type Error = S::Error;
-            fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), S::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_field(&$wrapper(value))
-            }
-            fn end(self) -> Result<S::Ok, S::Error> {
-                self.0.end()
-            }
-        }
-
-        impl<S> SerializeTupleVariant for $wrapper<S>
-        where
-            S: SerializeTupleVariant,
-        {
-            type Ok = S::Ok;
-            type Error = S::Error;
-            fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), S::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_field(&$wrapper(value))
-            }
-            fn end(self) -> Result<S::Ok, S::Error> {
-                self.0.end()
-            }
-        }
-
-        impl<S> SerializeMap for $wrapper<S>
-        where
-            S: SerializeMap,
-        {
-            type Ok = S::Ok;
-            type Error = S::Error;
-            fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), S::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_key(&$wrapper(key))
-            }
-            fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), S::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_value(&$wrapper(value))
-            }
-            fn serialize_entry<K: ?Sized, V: ?Sized>(
-                &mut self,
-                key: &K,
-                value: &V,
-            ) -> Result<(), S::Error>
-            where
-                K: Serialize,
-                V: Serialize,
-            {
-                self.0.serialize_entry(key, &$wrapper(value))
-            }
-            fn end(self) -> Result<S::Ok, S::Error> {
-                self.0.end()
-            }
-        }
-
-        impl<S> SerializeStruct for $wrapper<S>
-        where
-            S: SerializeStruct,
-        {
-            type Ok = S::Ok;
-            type Error = S::Error;
-            fn serialize_field<T: ?Sized>(
-                &mut self,
-                name: &'static str,
-                field: &T,
-            ) -> Result<(), S::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_field(name, &$wrapper(field))
-            }
-            fn end(self) -> Result<S::Ok, S::Error> {
-                self.0.end()
-            }
-        }
-
-        impl<S> SerializeStructVariant for $wrapper<S>
-        where
-            S: SerializeStructVariant,
-        {
-            type Ok = S::Ok;
-            type Error = S::Error;
-            fn serialize_field<T: ?Sized>(
-                &mut self,
-                name: &'static str,
-                field: &T,
-            ) -> Result<(), S::Error>
-            where
-                T: Serialize,
-            {
-                self.0.serialize_field(name, &$wrapper(field))
-            }
-            fn end(self) -> Result<S::Ok, S::Error> {
-                self.0.end()
-            }
-        }
-    };
-}
-
-impl_serializer!(Readable, true);
-impl_serializer!(Compact, false);
-
-use serde::de::{DeserializeSeed, EnumAccess, Error, MapAccess, SeqAccess, VariantAccess, Visitor};
-
-macro_rules! forward_deserialize_methods {
-    ( $wrapper : ident ( $( $name: ident ),* ) ) => {
-        $(
-            fn $name<V>(self, visitor: V) -> Result<V::Value, D::Error>
-            where
-                V: Visitor<'de>,
-            {
-                (self.0).$name($wrapper(visitor))
-            }
-        )*
-    };
-}
-
-macro_rules! impl_deserializer {
-    ($wrapper:ident, $is_human_readable:expr) => {
-        impl<'de, D> Deserializer<'de> for $wrapper<D>
-        where
-            D: Deserializer<'de>,
-        {
-            type Error = D::Error;
-
-            forward_deserialize_methods! {
-                $wrapper (
-                    deserialize_any,
-                    deserialize_bool,
-                    deserialize_u8,
-                    deserialize_u16,
-                    deserialize_u32,
-                    deserialize_u64,
-                    deserialize_i8,
-                    deserialize_i16,
-                    deserialize_i32,
-                    deserialize_i64,
-                    deserialize_f32,
-                    deserialize_f64,
-                    deserialize_char,
-                    deserialize_str,
-                    deserialize_string,
-                    deserialize_bytes,
-                    deserialize_byte_buf,
-                    deserialize_option,
-                    deserialize_unit,
-                    deserialize_seq,
-                    deserialize_map,
-                    deserialize_identifier,
-                    deserialize_ignored_any
-                )
-            }
-
-            fn deserialize_unit_struct<V>(
-                self,
-                name: &'static str,
-                visitor: V,
-            ) -> Result<V::Value, D::Error>
-            where
-                V: Visitor<'de>,
-            {
-                self.0.deserialize_unit_struct(name, $wrapper(visitor))
-            }
-            fn deserialize_newtype_struct<V>(
-                self,
-                name: &'static str,
-                visitor: V,
-            ) -> Result<V::Value, D::Error>
-            where
-                V: Visitor<'de>,
-            {
-                self.0.deserialize_newtype_struct(name, $wrapper(visitor))
-            }
-            fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, D::Error>
-            where
-                V: Visitor<'de>,
-            {
-                self.0.deserialize_tuple(len, $wrapper(visitor))
-            }
-            fn deserialize_tuple_struct<V>(
-                self,
-                name: &'static str,
-                len: usize,
-                visitor: V,
-            ) -> Result<V::Value, D::Error>
-            where
-                V: Visitor<'de>,
-            {
-                self.0
-                    .deserialize_tuple_struct(name, len, $wrapper(visitor))
-            }
-            fn deserialize_struct<V>(
-                self,
-                name: &'static str,
-                fields: &'static [&'static str],
-                visitor: V,
-            ) -> Result<V::Value, D::Error>
-            where
-                V: Visitor<'de>,
-            {
-                self.0.deserialize_struct(name, fields, $wrapper(visitor))
-            }
-            fn deserialize_enum<V>(
-                self,
-                name: &'static str,
-                variants: &'static [&'static str],
-                visitor: V,
-            ) -> Result<V::Value, D::Error>
-            where
-                V: Visitor<'de>,
-            {
-                self.0.deserialize_enum(name, variants, $wrapper(visitor))
-            }
-
-            fn is_human_readable(&self) -> bool {
-                $is_human_readable
-            }
-        }
-
-        impl<'de, D> Visitor<'de> for $wrapper<D>
-        where
-            D: Visitor<'de>,
-        {
-            type Value = D::Value;
-            fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-                self.0.expecting(formatter)
-            }
-            fn visit_bool<E>(self, v: bool) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_bool(v)
-            }
-            fn visit_i8<E>(self, v: i8) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_i8(v)
-            }
-            fn visit_i16<E>(self, v: i16) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_i16(v)
-            }
-            fn visit_i32<E>(self, v: i32) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_i32(v)
-            }
-            fn visit_i64<E>(self, v: i64) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_i64(v)
-            }
-            fn visit_u8<E>(self, v: u8) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_u8(v)
-            }
-            fn visit_u16<E>(self, v: u16) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_u16(v)
-            }
-            fn visit_u32<E>(self, v: u32) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_u32(v)
-            }
-            fn visit_u64<E>(self, v: u64) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_u64(v)
-            }
-            fn visit_f32<E>(self, v: f32) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_f32(v)
-            }
-            fn visit_f64<E>(self, v: f64) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_f64(v)
-            }
-            fn visit_char<E>(self, v: char) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_char(v)
-            }
-            fn visit_str<E>(self, v: &str) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_str(v)
-            }
-            fn visit_borrowed_str<E>(self, v: &'de str) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_borrowed_str(v)
-            }
-            fn visit_string<E>(self, v: String) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_string(v)
-            }
-            fn visit_bytes<E>(self, v: &[u8]) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_bytes(v)
-            }
-            fn visit_borrowed_bytes<E>(self, v: &'de [u8]) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_borrowed_bytes(v)
-            }
-            fn visit_byte_buf<E>(self, v: Vec<u8>) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_byte_buf(v)
-            }
-            fn visit_none<E>(self) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_none()
-            }
-            fn visit_some<D2>(self, deserializer: D2) -> Result<Self::Value, D2::Error>
-            where
-                D2: Deserializer<'de>,
-            {
-                self.0.visit_some($wrapper(deserializer))
-            }
-            fn visit_unit<E>(self) -> Result<D::Value, E>
-            where
-                E: Error,
-            {
-                self.0.visit_unit()
-            }
-            fn visit_newtype_struct<D2>(self, deserializer: D2) -> Result<Self::Value, D2::Error>
-            where
-                D2: Deserializer<'de>,
-            {
-                self.0.visit_newtype_struct($wrapper(deserializer))
-            }
-            fn visit_seq<V>(self, seq: V) -> Result<D::Value, V::Error>
-            where
-                V: SeqAccess<'de>,
-            {
-                self.0.visit_seq($wrapper(seq))
-            }
-            fn visit_map<V>(self, map: V) -> Result<D::Value, V::Error>
-            where
-                V: MapAccess<'de>,
-            {
-                self.0.visit_map($wrapper(map))
-            }
-            fn visit_enum<V>(self, data: V) -> Result<D::Value, V::Error>
-            where
-                V: EnumAccess<'de>,
-            {
-                self.0.visit_enum($wrapper(data))
-            }
-        }
-
-        impl<'de, D> SeqAccess<'de> for $wrapper<D>
-        where
-            D: SeqAccess<'de>,
-        {
-            type Error = D::Error;
-            fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, D::Error>
-            where
-                T: DeserializeSeed<'de>,
-            {
-                self.0.next_element_seed($wrapper(seed))
-            }
-            fn size_hint(&self) -> Option<usize> {
-                self.0.size_hint()
-            }
-        }
-
-        impl<'de, D> MapAccess<'de> for $wrapper<D>
-        where
-            D: MapAccess<'de>,
-        {
-            type Error = D::Error;
-            fn next_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>, D::Error>
-            where
-                K: DeserializeSeed<'de>,
-            {
-                self.0.next_key_seed($wrapper(seed))
-            }
-            fn next_value_seed<V>(&mut self, seed: V) -> Result<V::Value, D::Error>
-            where
-                V: DeserializeSeed<'de>,
-            {
-                self.0.next_value_seed($wrapper(seed))
-            }
-            fn next_entry_seed<K, V>(
-                &mut self,
-                kseed: K,
-                vseed: V,
-            ) -> Result<Option<(K::Value, V::Value)>, D::Error>
-            where
-                K: DeserializeSeed<'de>,
-                V: DeserializeSeed<'de>,
-            {
-                self.0.next_entry_seed($wrapper(kseed), $wrapper(vseed))
-            }
-            fn size_hint(&self) -> Option<usize> {
-                self.0.size_hint()
-            }
-        }
-
-        impl<'de, D> EnumAccess<'de> for $wrapper<D>
-        where
-            D: EnumAccess<'de>,
-        {
-            type Error = D::Error;
-            type Variant = $wrapper<D::Variant>;
-            fn variant_seed<V>(self, seed: V) -> Result<(V::Value, Self::Variant), Self::Error>
-            where
-                V: DeserializeSeed<'de>,
-            {
-                self.0
-                    .variant_seed($wrapper(seed))
-                    .map(|(value, variant)| (value, $wrapper(variant)))
-            }
-        }
-
-        impl<'de, D> VariantAccess<'de> for $wrapper<D>
-        where
-            D: VariantAccess<'de>,
-        {
-            type Error = D::Error;
-            fn unit_variant(self) -> Result<(), D::Error> {
-                self.0.unit_variant()
-            }
-            fn newtype_variant_seed<T>(self, seed: T) -> Result<T::Value, D::Error>
-            where
-                T: DeserializeSeed<'de>,
-            {
-                self.0.newtype_variant_seed($wrapper(seed))
-            }
-            fn tuple_variant<V>(self, len: usize, visitor: V) -> Result<V::Value, D::Error>
-            where
-                V: Visitor<'de>,
-            {
-                self.0.tuple_variant(len, $wrapper(visitor))
-            }
-            fn struct_variant<V>(
-                self,
-                fields: &'static [&'static str],
-                visitor: V,
-            ) -> Result<V::Value, D::Error>
-            where
-                V: Visitor<'de>,
-            {
-                self.0.struct_variant(fields, $wrapper(visitor))
-            }
-        }
-    };
-}
-
-impl_deserializer!(Readable, true);
-impl_deserializer!(Compact, false);

serde_test/src/de.rs

@@ -1,671 +0,0 @@
-use serde::de::value::{MapAccessDeserializer, SeqAccessDeserializer};
-use serde::de::{
-    self, Deserialize, DeserializeSeed, EnumAccess, IntoDeserializer, MapAccess, SeqAccess,
-    VariantAccess, Visitor,
-};
-
-use error::Error;
-use token::Token;
-
-#[derive(Debug)]
-pub struct Deserializer<'de> {
-    tokens: &'de [Token],
-}
-
-fn assert_next_token(de: &mut Deserializer, expected: Token) -> Result<(), Error> {
-    match de.next_token_opt() {
-        Some(token) if token == expected => Ok(()),
-        Some(other) => Err(de::Error::custom(format!(
-            "expected Token::{} but deserialization wants Token::{}",
-            other, expected,
-        ))),
-        None => Err(de::Error::custom(format!(
-            "end of tokens but deserialization wants Token::{}",
-            expected,
-        ))),
-    }
-}
-
-fn unexpected(token: Token) -> Error {
-    de::Error::custom(format!(
-        "deserialization did not expect this token: {}",
-        token,
-    ))
-}
-
-fn end_of_tokens() -> Error {
-    de::Error::custom("ran out of tokens to deserialize")
-}
-
-impl<'de> Deserializer<'de> {
-    pub fn new(tokens: &'de [Token]) -> Self {
-        Deserializer { tokens: tokens }
-    }
-
-    fn peek_token_opt(&self) -> Option<Token> {
-        self.tokens.first().cloned()
-    }
-
-    fn peek_token(&self) -> Result<Token, Error> {
-        self.peek_token_opt().ok_or_else(end_of_tokens)
-    }
-
-    pub fn next_token_opt(&mut self) -> Option<Token> {
-        match self.tokens.split_first() {
-            Some((&first, rest)) => {
-                self.tokens = rest;
-                Some(first)
-            }
-            None => None,
-        }
-    }
-
-    fn next_token(&mut self) -> Result<Token, Error> {
-        let (&first, rest) = self.tokens.split_first().ok_or_else(end_of_tokens)?;
-        self.tokens = rest;
-        Ok(first)
-    }
-
-    pub fn remaining(&self) -> usize {
-        self.tokens.len()
-    }
-
-    fn visit_seq<V>(
-        &mut self,
-        len: Option<usize>,
-        end: Token,
-        visitor: V,
-    ) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        let value = visitor.visit_seq(DeserializerSeqVisitor {
-            de: self,
-            len: len,
-            end: end,
-        })?;
-        assert_next_token(self, end)?;
-        Ok(value)
-    }
-
-    fn visit_map<V>(
-        &mut self,
-        len: Option<usize>,
-        end: Token,
-        visitor: V,
-    ) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        let value = visitor.visit_map(DeserializerMapVisitor {
-            de: self,
-            len: len,
-            end: end,
-        })?;
-        assert_next_token(self, end)?;
-        Ok(value)
-    }
-}
-
-impl<'de, 'a> de::Deserializer<'de> for &'a mut Deserializer<'de> {
-    type Error = Error;
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf unit seq map identifier ignored_any
-    }
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        let token = self.next_token()?;
-        match token {
-            Token::Bool(v) => visitor.visit_bool(v),
-            Token::I8(v) => visitor.visit_i8(v),
-            Token::I16(v) => visitor.visit_i16(v),
-            Token::I32(v) => visitor.visit_i32(v),
-            Token::I64(v) => visitor.visit_i64(v),
-            Token::U8(v) => visitor.visit_u8(v),
-            Token::U16(v) => visitor.visit_u16(v),
-            Token::U32(v) => visitor.visit_u32(v),
-            Token::U64(v) => visitor.visit_u64(v),
-            Token::F32(v) => visitor.visit_f32(v),
-            Token::F64(v) => visitor.visit_f64(v),
-            Token::Char(v) => visitor.visit_char(v),
-            Token::Str(v) => visitor.visit_str(v),
-            Token::BorrowedStr(v) => visitor.visit_borrowed_str(v),
-            Token::String(v) => visitor.visit_string(v.to_owned()),
-            Token::Bytes(v) => visitor.visit_bytes(v),
-            Token::BorrowedBytes(v) => visitor.visit_borrowed_bytes(v),
-            Token::ByteBuf(v) => visitor.visit_byte_buf(v.to_vec()),
-            Token::None => visitor.visit_none(),
-            Token::Some => visitor.visit_some(self),
-            Token::Unit | Token::UnitStruct { .. } => visitor.visit_unit(),
-            Token::NewtypeStruct { .. } => visitor.visit_newtype_struct(self),
-            Token::Seq { len } => self.visit_seq(len, Token::SeqEnd, visitor),
-            Token::Tuple { len } => self.visit_seq(Some(len), Token::TupleEnd, visitor),
-            Token::TupleStruct { len, .. } => {
-                self.visit_seq(Some(len), Token::TupleStructEnd, visitor)
-            }
-            Token::Map { len } => self.visit_map(len, Token::MapEnd, visitor),
-            Token::Struct { len, .. } => self.visit_map(Some(len), Token::StructEnd, visitor),
-            Token::Enum { .. } => {
-                let variant = self.next_token()?;
-                let next = self.peek_token()?;
-                match (variant, next) {
-                    (Token::Str(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_str(variant)
-                    }
-                    (Token::BorrowedStr(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_borrowed_str(variant)
-                    }
-                    (Token::String(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_string(variant.to_string())
-                    }
-                    (Token::Bytes(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_bytes(variant)
-                    }
-                    (Token::BorrowedBytes(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_borrowed_bytes(variant)
-                    }
-                    (Token::ByteBuf(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_byte_buf(variant.to_vec())
-                    }
-                    (Token::U8(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_u8(variant)
-                    }
-                    (Token::U16(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_u16(variant)
-                    }
-                    (Token::U32(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_u32(variant)
-                    }
-                    (Token::U64(variant), Token::Unit) => {
-                        self.next_token()?;
-                        visitor.visit_u64(variant)
-                    }
-                    (variant, Token::Unit) => Err(unexpected(variant)),
-                    (variant, _) => {
-                        visitor.visit_map(EnumMapVisitor::new(self, variant, EnumFormat::Any))
-                    }
-                }
-            }
-            Token::UnitVariant { variant, .. } => visitor.visit_str(variant),
-            Token::NewtypeVariant { variant, .. } => visitor.visit_map(EnumMapVisitor::new(
-                self,
-                Token::Str(variant),
-                EnumFormat::Any,
-            )),
-            Token::TupleVariant { variant, .. } => visitor.visit_map(EnumMapVisitor::new(
-                self,
-                Token::Str(variant),
-                EnumFormat::Seq,
-            )),
-            Token::StructVariant { variant, .. } => visitor.visit_map(EnumMapVisitor::new(
-                self,
-                Token::Str(variant),
-                EnumFormat::Map,
-            )),
-            Token::SeqEnd
-            | Token::TupleEnd
-            | Token::TupleStructEnd
-            | Token::MapEnd
-            | Token::StructEnd
-            | Token::TupleVariantEnd
-            | Token::StructVariantEnd => Err(unexpected(token)),
-        }
-    }
-
-    fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        match self.peek_token()? {
-            Token::Unit | Token::None => {
-                self.next_token()?;
-                visitor.visit_none()
-            }
-            Token::Some => {
-                self.next_token()?;
-                visitor.visit_some(self)
-            }
-            _ => self.deserialize_any(visitor),
-        }
-    }
-
-    fn deserialize_enum<V>(
-        self,
-        name: &'static str,
-        _variants: &'static [&'static str],
-        visitor: V,
-    ) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        match self.peek_token()? {
-            Token::Enum { name: n } if name == n => {
-                self.next_token()?;
-
-                visitor.visit_enum(DeserializerEnumVisitor { de: self })
-            }
-            Token::UnitVariant { name: n, .. }
-            | Token::NewtypeVariant { name: n, .. }
-            | Token::TupleVariant { name: n, .. }
-            | Token::StructVariant { name: n, .. }
-                if name == n =>
-            {
-                visitor.visit_enum(DeserializerEnumVisitor { de: self })
-            }
-            _ => self.deserialize_any(visitor),
-        }
-    }
-
-    fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        match self.peek_token()? {
-            Token::UnitStruct { .. } => {
-                assert_next_token(self, Token::UnitStruct { name: name })?;
-                visitor.visit_unit()
-            }
-            _ => self.deserialize_any(visitor),
-        }
-    }
-
-    fn deserialize_newtype_struct<V>(
-        self,
-        name: &'static str,
-        visitor: V,
-    ) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        match self.peek_token()? {
-            Token::NewtypeStruct { .. } => {
-                assert_next_token(self, Token::NewtypeStruct { name: name })?;
-                visitor.visit_newtype_struct(self)
-            }
-            _ => self.deserialize_any(visitor),
-        }
-    }
-
-    fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        match self.peek_token()? {
-            Token::Unit | Token::UnitStruct { .. } => {
-                self.next_token()?;
-                visitor.visit_unit()
-            }
-            Token::Seq { .. } => {
-                self.next_token()?;
-                self.visit_seq(Some(len), Token::SeqEnd, visitor)
-            }
-            Token::Tuple { .. } => {
-                self.next_token()?;
-                self.visit_seq(Some(len), Token::TupleEnd, visitor)
-            }
-            Token::TupleStruct { .. } => {
-                self.next_token()?;
-                self.visit_seq(Some(len), Token::TupleStructEnd, visitor)
-            }
-            _ => self.deserialize_any(visitor),
-        }
-    }
-
-    fn deserialize_tuple_struct<V>(
-        self,
-        name: &'static str,
-        len: usize,
-        visitor: V,
-    ) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        match self.peek_token()? {
-            Token::Unit => {
-                self.next_token()?;
-                visitor.visit_unit()
-            }
-            Token::UnitStruct { .. } => {
-                assert_next_token(self, Token::UnitStruct { name: name })?;
-                visitor.visit_unit()
-            }
-            Token::Seq { .. } => {
-                self.next_token()?;
-                self.visit_seq(Some(len), Token::SeqEnd, visitor)
-            }
-            Token::Tuple { .. } => {
-                self.next_token()?;
-                self.visit_seq(Some(len), Token::TupleEnd, visitor)
-            }
-            Token::TupleStruct { len: n, .. } => {
-                assert_next_token(self, Token::TupleStruct { name: name, len: n })?;
-                self.visit_seq(Some(len), Token::TupleStructEnd, visitor)
-            }
-            _ => self.deserialize_any(visitor),
-        }
-    }
-
-    fn deserialize_struct<V>(
-        self,
-        name: &'static str,
-        fields: &'static [&'static str],
-        visitor: V,
-    ) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        match self.peek_token()? {
-            Token::Struct { len: n, .. } => {
-                assert_next_token(self, Token::Struct { name: name, len: n })?;
-                self.visit_map(Some(fields.len()), Token::StructEnd, visitor)
-            }
-            Token::Map { .. } => {
-                self.next_token()?;
-                self.visit_map(Some(fields.len()), Token::MapEnd, visitor)
-            }
-            _ => self.deserialize_any(visitor),
-        }
-    }
-
-    fn is_human_readable(&self) -> bool {
-        panic!(
-            "Types which have different human-readable and compact representations \
-             must explicitly mark their test cases with `serde_test::Configure`"
-        );
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////
-
-struct DeserializerSeqVisitor<'a, 'de: 'a> {
-    de: &'a mut Deserializer<'de>,
-    len: Option<usize>,
-    end: Token,
-}
-
-impl<'de, 'a> SeqAccess<'de> for DeserializerSeqVisitor<'a, 'de> {
-    type Error = Error;
-
-    fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, Error>
-    where
-        T: DeserializeSeed<'de>,
-    {
-        if self.de.peek_token_opt() == Some(self.end) {
-            return Ok(None);
-        }
-        self.len = self.len.map(|len| len.saturating_sub(1));
-        seed.deserialize(&mut *self.de).map(Some)
-    }
-
-    fn size_hint(&self) -> Option<usize> {
-        self.len
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////
-
-struct DeserializerMapVisitor<'a, 'de: 'a> {
-    de: &'a mut Deserializer<'de>,
-    len: Option<usize>,
-    end: Token,
-}
-
-impl<'de, 'a> MapAccess<'de> for DeserializerMapVisitor<'a, 'de> {
-    type Error = Error;
-
-    fn next_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>, Error>
-    where
-        K: DeserializeSeed<'de>,
-    {
-        if self.de.peek_token_opt() == Some(self.end) {
-            return Ok(None);
-        }
-        self.len = self.len.map(|len| len.saturating_sub(1));
-        seed.deserialize(&mut *self.de).map(Some)
-    }
-
-    fn next_value_seed<V>(&mut self, seed: V) -> Result<V::Value, Error>
-    where
-        V: DeserializeSeed<'de>,
-    {
-        seed.deserialize(&mut *self.de)
-    }
-
-    fn size_hint(&self) -> Option<usize> {
-        self.len
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////
-
-struct DeserializerEnumVisitor<'a, 'de: 'a> {
-    de: &'a mut Deserializer<'de>,
-}
-
-impl<'de, 'a> EnumAccess<'de> for DeserializerEnumVisitor<'a, 'de> {
-    type Error = Error;
-    type Variant = Self;
-
-    fn variant_seed<V>(self, seed: V) -> Result<(V::Value, Self), Error>
-    where
-        V: DeserializeSeed<'de>,
-    {
-        match self.de.peek_token()? {
-            Token::UnitVariant { variant: v, .. }
-            | Token::NewtypeVariant { variant: v, .. }
-            | Token::TupleVariant { variant: v, .. }
-            | Token::StructVariant { variant: v, .. } => {
-                let de = v.into_deserializer();
-                let value = seed.deserialize(de)?;
-                Ok((value, self))
-            }
-            _ => {
-                let value = seed.deserialize(&mut *self.de)?;
-                Ok((value, self))
-            }
-        }
-    }
-}
-
-impl<'de, 'a> VariantAccess<'de> for DeserializerEnumVisitor<'a, 'de> {
-    type Error = Error;
-
-    fn unit_variant(self) -> Result<(), Error> {
-        match self.de.peek_token()? {
-            Token::UnitVariant { .. } => {
-                self.de.next_token()?;
-                Ok(())
-            }
-            _ => Deserialize::deserialize(self.de),
-        }
-    }
-
-    fn newtype_variant_seed<T>(self, seed: T) -> Result<T::Value, Self::Error>
-    where
-        T: DeserializeSeed<'de>,
-    {
-        match self.de.peek_token()? {
-            Token::NewtypeVariant { .. } => {
-                self.de.next_token()?;
-                seed.deserialize(self.de)
-            }
-            _ => seed.deserialize(self.de),
-        }
-    }
-
-    fn tuple_variant<V>(self, len: usize, visitor: V) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        match self.de.peek_token()? {
-            Token::TupleVariant { len: enum_len, .. } => {
-                let token = self.de.next_token()?;
-
-                if len == enum_len {
-                    self.de
-                        .visit_seq(Some(len), Token::TupleVariantEnd, visitor)
-                } else {
-                    Err(unexpected(token))
-                }
-            }
-            Token::Seq {
-                len: Some(enum_len),
-            } => {
-                let token = self.de.next_token()?;
-
-                if len == enum_len {
-                    self.de.visit_seq(Some(len), Token::SeqEnd, visitor)
-                } else {
-                    Err(unexpected(token))
-                }
-            }
-            _ => de::Deserializer::deserialize_any(self.de, visitor),
-        }
-    }
-
-    fn struct_variant<V>(
-        self,
-        fields: &'static [&'static str],
-        visitor: V,
-    ) -> Result<V::Value, Error>
-    where
-        V: Visitor<'de>,
-    {
-        match self.de.peek_token()? {
-            Token::StructVariant { len: enum_len, .. } => {
-                let token = self.de.next_token()?;
-
-                if fields.len() == enum_len {
-                    self.de
-                        .visit_map(Some(fields.len()), Token::StructVariantEnd, visitor)
-                } else {
-                    Err(unexpected(token))
-                }
-            }
-            Token::Map {
-                len: Some(enum_len),
-            } => {
-                let token = self.de.next_token()?;
-
-                if fields.len() == enum_len {
-                    self.de
-                        .visit_map(Some(fields.len()), Token::MapEnd, visitor)
-                } else {
-                    Err(unexpected(token))
-                }
-            }
-            _ => de::Deserializer::deserialize_any(self.de, visitor),
-        }
-    }
-}
-
-//////////////////////////////////////////////////////////////////////////
-
-struct EnumMapVisitor<'a, 'de: 'a> {
-    de: &'a mut Deserializer<'de>,
-    variant: Option<Token>,
-    format: EnumFormat,
-}
-
-enum EnumFormat {
-    Seq,
-    Map,
-    Any,
-}
-
-impl<'a, 'de> EnumMapVisitor<'a, 'de> {
-    fn new(de: &'a mut Deserializer<'de>, variant: Token, format: EnumFormat) -> Self {
-        EnumMapVisitor {
-            de: de,
-            variant: Some(variant),
-            format: format,
-        }
-    }
-}
-
-impl<'de, 'a> MapAccess<'de> for EnumMapVisitor<'a, 'de> {
-    type Error = Error;
-
-    fn next_key_seed<K>(&mut self, seed: K) -> Result<Option<K::Value>, Error>
-    where
-        K: DeserializeSeed<'de>,
-    {
-        match self.variant.take() {
-            Some(Token::Str(variant)) => seed.deserialize(variant.into_deserializer()).map(Some),
-            Some(Token::Bytes(variant)) => seed
-                .deserialize(BytesDeserializer { value: variant })
-                .map(Some),
-            Some(Token::U32(variant)) => seed.deserialize(variant.into_deserializer()).map(Some),
-            Some(other) => Err(unexpected(other)),
-            None => Ok(None),
-        }
-    }
-
-    fn next_value_seed<V>(&mut self, seed: V) -> Result<V::Value, Error>
-    where
-        V: DeserializeSeed<'de>,
-    {
-        match self.format {
-            EnumFormat::Seq => {
-                let value = {
-                    let visitor = DeserializerSeqVisitor {
-                        de: self.de,
-                        len: None,
-                        end: Token::TupleVariantEnd,
-                    };
-                    seed.deserialize(SeqAccessDeserializer::new(visitor))?
-                };
-                assert_next_token(self.de, Token::TupleVariantEnd)?;
-                Ok(value)
-            }
-            EnumFormat::Map => {
-                let value = {
-                    let visitor = DeserializerMapVisitor {
-                        de: self.de,
-                        len: None,
-                        end: Token::StructVariantEnd,
-                    };
-                    seed.deserialize(MapAccessDeserializer::new(visitor))?
-                };
-                assert_next_token(self.de, Token::StructVariantEnd)?;
-                Ok(value)
-            }
-            EnumFormat::Any => seed.deserialize(&mut *self.de),
-        }
-    }
-}
-
-struct BytesDeserializer {
-    value: &'static [u8],
-}
-
-impl<'de> de::Deserializer<'de> for BytesDeserializer {
-    type Error = Error;
-
-    fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
-    where
-        V: de::Visitor<'de>,
-    {
-        visitor.visit_bytes(self.value)
-    }
-
-    forward_to_deserialize_any! {
-        bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
-        bytes byte_buf option unit unit_struct newtype_struct seq tuple
-        tuple_struct map struct enum identifier ignored_any
-    }
-}

serde_test/src/error.rs

@@ -1,43 +0,0 @@
-use std::error;
-use std::fmt::{self, Display};
-
-use serde::{de, ser};
-
-#[derive(Clone, Debug)]
-pub struct Error {
-    msg: String,
-}
-
-impl ser::Error for Error {
-    fn custom<T: Display>(msg: T) -> Self {
-        Error {
-            msg: msg.to_string(),
-        }
-    }
-}
-
-impl de::Error for Error {
-    fn custom<T: Display>(msg: T) -> Self {
-        Error {
-            msg: msg.to_string(),
-        }
-    }
-}
-
-impl fmt::Display for Error {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        formatter.write_str(&self.msg)
-    }
-}
-
-impl error::Error for Error {
-    fn description(&self) -> &str {
-        &self.msg
-    }
-}
-
-impl PartialEq<str> for Error {
-    fn eq(&self, other: &str) -> bool {
-        self.msg == other
-    }
-}

serde_test/src/lib.rs

@@ -1,188 +0,0 @@
-//! This crate provides a convenient concise way to write unit tests for
-//! implementations of [`Serialize`] and [`Deserialize`].
-//!
-//! [`Serialize`]: serde::ser::Serialize
-//! [`Deserialize`]: serde::de::Deserialize
-//!
-//! The `Serialize` impl for a value can be characterized by the sequence of
-//! [`Serializer`] calls that are made in the course of serializing the value,
-//! so `serde_test` provides a [`Token`] abstraction which corresponds roughly
-//! to `Serializer` method calls. There is an [`assert_ser_tokens`] function to
-//! test that a value serializes to a particular sequence of method calls, an
-//! [`assert_de_tokens`] function to test that a value can be deserialized from
-//! a particular sequence of method calls, and an [`assert_tokens`] function to
-//! test both directions. There are also functions to test expected failure
-//! conditions.
-//!
-//! [`Serializer`]: serde::ser::Serializer
-//!
-//! Here is an example from the [`linked-hash-map`] crate.
-//!
-//! [`linked-hash-map`]: https://github.com/contain-rs/linked-hash-map
-//!
-//! ```edition2021
-//! # const IGNORE: &str = stringify! {
-//! use linked_hash_map::LinkedHashMap;
-//! # };
-//! use serde_test::{assert_tokens, Token};
-//!
-//! # use std::fmt;
-//! # use std::marker::PhantomData;
-//! #
-//! # use serde::ser::{Serialize, Serializer, SerializeMap};
-//! # use serde::de::{Deserialize, Deserializer, Visitor, MapAccess};
-//! #
-//! # // Dumb imitation of LinkedHashMap.
-//! # #[derive(PartialEq, Debug)]
-//! # struct LinkedHashMap<K, V>(Vec<(K, V)>);
-//! #
-//! # impl<K, V> LinkedHashMap<K, V> {
-//! #     fn new() -> Self {
-//! #         LinkedHashMap(Vec::new())
-//! #     }
-//! #
-//! #     fn insert(&mut self, k: K, v: V) {
-//! #         self.0.push((k, v));
-//! #     }
-//! # }
-//! #
-//! # impl<K, V> Serialize for LinkedHashMap<K, V>
-//! # where
-//! #     K: Serialize,
-//! #     V: Serialize,
-//! # {
-//! #     fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
-//! #     where
-//! #         S: Serializer,
-//! #     {
-//! #         let mut map = serializer.serialize_map(Some(self.0.len()))?;
-//! #         for &(ref k, ref v) in &self.0 {
-//! #             map.serialize_entry(k, v)?;
-//! #         }
-//! #         map.end()
-//! #     }
-//! # }
-//! #
-//! # struct LinkedHashMapVisitor<K, V>(PhantomData<(K, V)>);
-//! #
-//! # impl<'de, K, V> Visitor<'de> for LinkedHashMapVisitor<K, V>
-//! # where
-//! #     K: Deserialize<'de>,
-//! #     V: Deserialize<'de>,
-//! # {
-//! #     type Value = LinkedHashMap<K, V>;
-//! #
-//! #     fn expecting(&self, _: &mut fmt::Formatter) -> fmt::Result {
-//! #         unimplemented!()
-//! #     }
-//! #
-//! #     fn visit_map<M>(self, mut access: M) -> Result<Self::Value, M::Error>
-//! #     where
-//! #         M: MapAccess<'de>,
-//! #     {
-//! #         let mut map = LinkedHashMap::new();
-//! #         while let Some((key, value)) = access.next_entry()? {
-//! #             map.insert(key, value);
-//! #         }
-//! #         Ok(map)
-//! #     }
-//! # }
-//! #
-//! # impl<'de, K, V> Deserialize<'de> for LinkedHashMap<K, V>
-//! # where
-//! #     K: Deserialize<'de>,
-//! #     V: Deserialize<'de>,
-//! # {
-//! #     fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
-//! #     where
-//! #         D: Deserializer<'de>,
-//! #     {
-//! #         deserializer.deserialize_map(LinkedHashMapVisitor(PhantomData))
-//! #     }
-//! # }
-//! #
-//! #[test]
-//! # fn not_a_test_ser_de_empty() {}
-//! fn test_ser_de_empty() {
-//!     let map = LinkedHashMap::<char, u32>::new();
-//!
-//!     assert_tokens(
-//!         &map,
-//!         &[
-//!             Token::Map { len: Some(0) },
-//!             Token::MapEnd,
-//!         ],
-//!     );
-//! }
-//!
-//! #[test]
-//! # fn not_a_test_ser_de() {}
-//! fn test_ser_de() {
-//!     let mut map = LinkedHashMap::new();
-//!     map.insert('b', 20);
-//!     map.insert('a', 10);
-//!     map.insert('c', 30);
-//!
-//!     assert_tokens(
-//!         &map,
-//!         &[
-//!             Token::Map { len: Some(3) },
-//!             Token::Char('b'),
-//!             Token::I32(20),
-//!             Token::Char('a'),
-//!             Token::I32(10),
-//!             Token::Char('c'),
-//!             Token::I32(30),
-//!             Token::MapEnd,
-//!         ],
-//!     );
-//! }
-//! #
-//! # fn main() {
-//! #     test_ser_de_empty();
-//! #     test_ser_de();
-//! # }
-//! ```
-
-#![doc(html_root_url = "https://docs.rs/serde_test/1.0.170")]
-#![cfg_attr(feature = "cargo-clippy", allow(renamed_and_removed_lints))]
-// Ignored clippy lints
-#![cfg_attr(feature = "cargo-clippy", allow(float_cmp, needless_doctest_main))]
-// Ignored clippy_pedantic lints
-#![cfg_attr(
-    feature = "cargo-clippy",
-    allow(
-        cloned_instead_of_copied,
-        doc_link_with_quotes, // https://github.com/rust-lang/rust-clippy/issues/8961
-        empty_line_after_outer_attr,
-        manual_assert,
-        missing_docs_in_private_items,
-        missing_panics_doc,
-        module_name_repetitions,
-        must_use_candidate,
-        redundant_field_names,
-        too_many_lines,
-        type_repetition_in_bounds, // https://github.com/rust-lang/rust-clippy/issues/8772
-        use_debug,
-        use_self
-    )
-)]
-
-#[macro_use]
-extern crate serde;
-
-mod de;
-mod error;
-mod ser;
-
-mod assert;
-mod configure;
-mod token;
-
-pub use assert::{
-    assert_de_tokens, assert_de_tokens_error, assert_ser_tokens, assert_ser_tokens_error,
-    assert_tokens,
-};
-pub use token::Token;
-
-pub use configure::{Compact, Configure, Readable};

serde_test/src/ser.rs

@@ -1,462 +0,0 @@
-use serde::{ser, Serialize};
-
-use error::Error;
-use token::Token;
-
-/// A `Serializer` that ensures that a value serializes to a given list of
-/// tokens.
-#[derive(Debug)]
-pub struct Serializer<'a> {
-    tokens: &'a [Token],
-}
-
-impl<'a> Serializer<'a> {
-    /// Creates the serializer.
-    pub fn new(tokens: &'a [Token]) -> Self {
-        Serializer { tokens: tokens }
-    }
-
-    /// Pulls the next token off of the serializer, ignoring it.
-    fn next_token(&mut self) -> Option<Token> {
-        if let Some((&first, rest)) = self.tokens.split_first() {
-            self.tokens = rest;
-            Some(first)
-        } else {
-            None
-        }
-    }
-
-    pub fn remaining(&self) -> usize {
-        self.tokens.len()
-    }
-}
-
-macro_rules! assert_next_token {
-    ($ser:expr, $actual:ident) => {{
-        assert_next_token!($ser, stringify!($actual), Token::$actual, true);
-    }};
-    ($ser:expr, $actual:ident($v:expr)) => {{
-        assert_next_token!(
-            $ser,
-            format_args!(concat!(stringify!($actual), "({:?})"), $v),
-            Token::$actual(v),
-            v == $v
-        );
-    }};
-    ($ser:expr, $actual:ident { $($k:ident),* }) => {{
-        let compare = ($($k,)*);
-        let field_format = || {
-            use std::fmt::Write;
-            let mut buffer = String::new();
-            $(
-                write!(&mut buffer, concat!(stringify!($k), ": {:?}, "), $k).unwrap();
-            )*
-            buffer
-        };
-        assert_next_token!(
-            $ser,
-            format_args!(concat!(stringify!($actual), " {{ {}}}"), field_format()),
-            Token::$actual { $($k),* },
-            ($($k,)*) == compare
-        );
-    }};
-    ($ser:expr, $actual:expr, $pat:pat, $guard:expr) => {
-        match $ser.next_token() {
-            Some($pat) if $guard => {}
-            Some(expected) => return Err(ser::Error::custom(
-                format!("expected Token::{} but serialized as {}", expected, $actual)
-            )),
-            None => return Err(ser::Error::custom(
-                format!("expected end of tokens, but {} was serialized", $actual)
-            )),
-        }
-    };
-}
-
-impl<'s, 'a> ser::Serializer for &'s mut Serializer<'a> {
-    type Ok = ();
-    type Error = Error;
-
-    type SerializeSeq = Self;
-    type SerializeTuple = Self;
-    type SerializeTupleStruct = Self;
-    type SerializeTupleVariant = Variant<'s, 'a>;
-    type SerializeMap = Self;
-    type SerializeStruct = Self;
-    type SerializeStructVariant = Variant<'s, 'a>;
-
-    fn serialize_bool(self, v: bool) -> Result<(), Error> {
-        assert_next_token!(self, Bool(v));
-        Ok(())
-    }
-
-    fn serialize_i8(self, v: i8) -> Result<(), Error> {
-        assert_next_token!(self, I8(v));
-        Ok(())
-    }
-
-    fn serialize_i16(self, v: i16) -> Result<(), Error> {
-        assert_next_token!(self, I16(v));
-        Ok(())
-    }
-
-    fn serialize_i32(self, v: i32) -> Result<(), Error> {
-        assert_next_token!(self, I32(v));
-        Ok(())
-    }
-
-    fn serialize_i64(self, v: i64) -> Result<(), Error> {
-        assert_next_token!(self, I64(v));
-        Ok(())
-    }
-
-    fn serialize_u8(self, v: u8) -> Result<(), Error> {
-        assert_next_token!(self, U8(v));
-        Ok(())
-    }
-
-    fn serialize_u16(self, v: u16) -> Result<(), Error> {
-        assert_next_token!(self, U16(v));
-        Ok(())
-    }
-
-    fn serialize_u32(self, v: u32) -> Result<(), Error> {
-        assert_next_token!(self, U32(v));
-        Ok(())
-    }
-
-    fn serialize_u64(self, v: u64) -> Result<(), Error> {
-        assert_next_token!(self, U64(v));
-        Ok(())
-    }
-
-    fn serialize_f32(self, v: f32) -> Result<(), Error> {
-        assert_next_token!(self, F32(v));
-        Ok(())
-    }
-
-    fn serialize_f64(self, v: f64) -> Result<(), Error> {
-        assert_next_token!(self, F64(v));
-        Ok(())
-    }
-
-    fn serialize_char(self, v: char) -> Result<(), Error> {
-        assert_next_token!(self, Char(v));
-        Ok(())
-    }
-
-    fn serialize_str(self, v: &str) -> Result<(), Error> {
-        match self.tokens.first() {
-            Some(&Token::BorrowedStr(_)) => assert_next_token!(self, BorrowedStr(v)),
-            Some(&Token::String(_)) => assert_next_token!(self, String(v)),
-            _ => assert_next_token!(self, Str(v)),
-        }
-        Ok(())
-    }
-
-    fn serialize_bytes(self, v: &[u8]) -> Result<(), Self::Error> {
-        match self.tokens.first() {
-            Some(&Token::BorrowedBytes(_)) => assert_next_token!(self, BorrowedBytes(v)),
-            Some(&Token::ByteBuf(_)) => assert_next_token!(self, ByteBuf(v)),
-            _ => assert_next_token!(self, Bytes(v)),
-        }
-        Ok(())
-    }
-
-    fn serialize_unit(self) -> Result<(), Error> {
-        assert_next_token!(self, Unit);
-        Ok(())
-    }
-
-    fn serialize_unit_struct(self, name: &'static str) -> Result<(), Error> {
-        assert_next_token!(self, UnitStruct { name });
-        Ok(())
-    }
-
-    fn serialize_unit_variant(
-        self,
-        name: &'static str,
-        _variant_index: u32,
-        variant: &'static str,
-    ) -> Result<(), Error> {
-        if self.tokens.first() == Some(&Token::Enum { name: name }) {
-            self.next_token();
-            assert_next_token!(self, Str(variant));
-            assert_next_token!(self, Unit);
-        } else {
-            assert_next_token!(self, UnitVariant { name, variant });
-        }
-        Ok(())
-    }
-
-    fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<(), Error>
-    where
-        T: Serialize,
-    {
-        assert_next_token!(self, NewtypeStruct { name });
-        value.serialize(self)
-    }
-
-    fn serialize_newtype_variant<T: ?Sized>(
-        self,
-        name: &'static str,
-        _variant_index: u32,
-        variant: &'static str,
-        value: &T,
-    ) -> Result<(), Error>
-    where
-        T: Serialize,
-    {
-        if self.tokens.first() == Some(&Token::Enum { name: name }) {
-            self.next_token();
-            assert_next_token!(self, Str(variant));
-        } else {
-            assert_next_token!(self, NewtypeVariant { name, variant });
-        }
-        value.serialize(self)
-    }
-
-    fn serialize_none(self) -> Result<(), Error> {
-        assert_next_token!(self, None);
-        Ok(())
-    }
-
-    fn serialize_some<T: ?Sized>(self, value: &T) -> Result<(), Error>
-    where
-        T: Serialize,
-    {
-        assert_next_token!(self, Some);
-        value.serialize(self)
-    }
-
-    fn serialize_seq(self, len: Option<usize>) -> Result<Self, Error> {
-        assert_next_token!(self, Seq { len });
-        Ok(self)
-    }
-
-    fn serialize_tuple(self, len: usize) -> Result<Self, Error> {
-        assert_next_token!(self, Tuple { len });
-        Ok(self)
-    }
-
-    fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self, Error> {
-        assert_next_token!(self, TupleStruct { name, len });
-        Ok(self)
-    }
-
-    fn serialize_tuple_variant(
-        self,
-        name: &'static str,
-        _variant_index: u32,
-        variant: &'static str,
-        len: usize,
-    ) -> Result<Self::SerializeTupleVariant, Error> {
-        if self.tokens.first() == Some(&Token::Enum { name: name }) {
-            self.next_token();
-            assert_next_token!(self, Str(variant));
-            let len = Some(len);
-            assert_next_token!(self, Seq { len });
-            Ok(Variant {
-                ser: self,
-                end: Token::SeqEnd,
-            })
-        } else {
-            assert_next_token!(self, TupleVariant { name, variant, len });
-            Ok(Variant {
-                ser: self,
-                end: Token::TupleVariantEnd,
-            })
-        }
-    }
-
-    fn serialize_map(self, len: Option<usize>) -> Result<Self, Error> {
-        assert_next_token!(self, Map { len });
-        Ok(self)
-    }
-
-    fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self, Error> {
-        assert_next_token!(self, Struct { name, len });
-        Ok(self)
-    }
-
-    fn serialize_struct_variant(
-        self,
-        name: &'static str,
-        _variant_index: u32,
-        variant: &'static str,
-        len: usize,
-    ) -> Result<Self::SerializeStructVariant, Error> {
-        if self.tokens.first() == Some(&Token::Enum { name: name }) {
-            self.next_token();
-            assert_next_token!(self, Str(variant));
-            let len = Some(len);
-            assert_next_token!(self, Map { len });
-            Ok(Variant {
-                ser: self,
-                end: Token::MapEnd,
-            })
-        } else {
-            assert_next_token!(self, StructVariant { name, variant, len });
-            Ok(Variant {
-                ser: self,
-                end: Token::StructVariantEnd,
-            })
-        }
-    }
-
-    fn is_human_readable(&self) -> bool {
-        panic!(
-            "Types which have different human-readable and compact representations \
-             must explicitly mark their test cases with `serde_test::Configure`"
-        );
-    }
-}
-
-pub struct Variant<'s, 'a: 's> {
-    ser: &'s mut Serializer<'a>,
-    end: Token,
-}
-
-impl<'s, 'a> ser::SerializeSeq for &'s mut Serializer<'a> {
-    type Ok = ();
-    type Error = Error;
-
-    fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
-    where
-        T: Serialize,
-    {
-        value.serialize(&mut **self)
-    }
-
-    fn end(self) -> Result<(), Error> {
-        assert_next_token!(self, SeqEnd);
-        Ok(())
-    }
-}
-
-impl<'s, 'a> ser::SerializeTuple for &'s mut Serializer<'a> {
-    type Ok = ();
-    type Error = Error;
-
-    fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
-    where
-        T: Serialize,
-    {
-        value.serialize(&mut **self)
-    }
-
-    fn end(self) -> Result<(), Error> {
-        assert_next_token!(self, TupleEnd);
-        Ok(())
-    }
-}
-
-impl<'s, 'a> ser::SerializeTupleStruct for &'s mut Serializer<'a> {
-    type Ok = ();
-    type Error = Error;
-
-    fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
-    where
-        T: Serialize,
-    {
-        value.serialize(&mut **self)
-    }
-
-    fn end(self) -> Result<(), Error> {
-        assert_next_token!(self, TupleStructEnd);
-        Ok(())
-    }
-}
-
-impl<'s, 'a> ser::SerializeTupleVariant for Variant<'s, 'a> {
-    type Ok = ();
-    type Error = Error;
-
-    fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
-    where
-        T: Serialize,
-    {
-        value.serialize(&mut *self.ser)
-    }
-
-    fn end(self) -> Result<(), Error> {
-        match self.end {
-            Token::TupleVariantEnd => assert_next_token!(self.ser, TupleVariantEnd),
-            Token::SeqEnd => assert_next_token!(self.ser, SeqEnd),
-            _ => unreachable!(),
-        }
-        Ok(())
-    }
-}
-
-impl<'s, 'a> ser::SerializeMap for &'s mut Serializer<'a> {
-    type Ok = ();
-    type Error = Error;
-
-    fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Self::Error>
-    where
-        T: Serialize,
-    {
-        key.serialize(&mut **self)
-    }
-
-    fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error>
-    where
-        T: Serialize,
-    {
-        value.serialize(&mut **self)
-    }
-
-    fn end(self) -> Result<(), Self::Error> {
-        assert_next_token!(self, MapEnd);
-        Ok(())
-    }
-}
-
-impl<'s, 'a> ser::SerializeStruct for &'s mut Serializer<'a> {
-    type Ok = ();
-    type Error = Error;
-
-    fn serialize_field<T: ?Sized>(
-        &mut self,
-        key: &'static str,
-        value: &T,
-    ) -> Result<(), Self::Error>
-    where
-        T: Serialize,
-    {
-        key.serialize(&mut **self)?;
-        value.serialize(&mut **self)
-    }
-
-    fn end(self) -> Result<(), Self::Error> {
-        assert_next_token!(self, StructEnd);
-        Ok(())
-    }
-}
-
-impl<'s, 'a> ser::SerializeStructVariant for Variant<'s, 'a> {
-    type Ok = ();
-    type Error = Error;
-
-    fn serialize_field<T: ?Sized>(
-        &mut self,
-        key: &'static str,
-        value: &T,
-    ) -> Result<(), Self::Error>
-    where
-        T: Serialize,
-    {
-        key.serialize(&mut *self.ser)?;
-        value.serialize(&mut *self.ser)
-    }
-
-    fn end(self) -> Result<(), Self::Error> {
-        match self.end {
-            Token::StructVariantEnd => assert_next_token!(self.ser, StructVariantEnd),
-            Token::MapEnd => assert_next_token!(self.ser, MapEnd),
-            _ => unreachable!(),
-        }
-        Ok(())
-    }
-}

serde_test/src/token.rs

@@ -1,561 +0,0 @@
-use std::fmt::{self, Debug, Display};
-
-#[derive(Copy, Clone, PartialEq, Debug)]
-pub enum Token {
-    /// A serialized `bool`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&true, &[Token::Bool(true)]);
-    /// ```
-    Bool(bool),
-
-    /// A serialized `i8`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0i8, &[Token::I8(0)]);
-    /// ```
-    I8(i8),
-
-    /// A serialized `i16`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0i16, &[Token::I16(0)]);
-    /// ```
-    I16(i16),
-
-    /// A serialized `i32`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0i32, &[Token::I32(0)]);
-    /// ```
-    I32(i32),
-
-    /// A serialized `i64`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0i64, &[Token::I64(0)]);
-    /// ```
-    I64(i64),
-
-    /// A serialized `u8`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0u8, &[Token::U8(0)]);
-    /// ```
-    U8(u8),
-
-    /// A serialized `u16`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0u16, &[Token::U16(0)]);
-    /// ```
-    U16(u16),
-
-    /// A serialized `u32`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0u32, &[Token::U32(0)]);
-    /// ```
-    U32(u32),
-
-    /// A serialized `u64`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0u64, &[Token::U64(0)]);
-    /// ```
-    U64(u64),
-
-    /// A serialized `f32`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0f32, &[Token::F32(0.0)]);
-    /// ```
-    F32(f32),
-
-    /// A serialized `f64`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&0f64, &[Token::F64(0.0)]);
-    /// ```
-    F64(f64),
-
-    /// A serialized `char`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&'\n', &[Token::Char('\n')]);
-    /// ```
-    Char(char),
-
-    /// A serialized `str`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// let s = String::from("transient");
-    /// assert_tokens(&s, &[Token::Str("transient")]);
-    /// ```
-    Str(&'static str),
-
-    /// A borrowed `str`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// let s: &str = "borrowed";
-    /// assert_tokens(&s, &[Token::BorrowedStr("borrowed")]);
-    /// ```
-    BorrowedStr(&'static str),
-
-    /// A serialized `String`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// let s = String::from("owned");
-    /// assert_tokens(&s, &[Token::String("owned")]);
-    /// ```
-    String(&'static str),
-
-    /// A serialized `[u8]`
-    Bytes(&'static [u8]),
-
-    /// A borrowed `[u8]`.
-    BorrowedBytes(&'static [u8]),
-
-    /// A serialized `ByteBuf`
-    ByteBuf(&'static [u8]),
-
-    /// A serialized `Option<T>` containing none.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// let opt = None::<char>;
-    /// assert_tokens(&opt, &[Token::None]);
-    /// ```
-    None,
-
-    /// The header to a serialized `Option<T>` containing some value.
-    ///
-    /// The tokens of the value follow after this header.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// let opt = Some('c');
-    /// assert_tokens(&opt, &[Token::Some, Token::Char('c')]);
-    /// ```
-    Some,
-
-    /// A serialized `()`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// assert_tokens(&(), &[Token::Unit]);
-    /// ```
-    Unit,
-
-    /// A serialized unit struct of the given name.
-    ///
-    /// ```edition2021
-    /// # use serde_derive::{Deserialize, Serialize};
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// # fn main() {
-    /// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-    /// struct X;
-    ///
-    /// assert_tokens(&X, &[Token::UnitStruct { name: "X" }]);
-    /// # }
-    /// ```
-    UnitStruct { name: &'static str },
-
-    /// A unit variant of an enum.
-    ///
-    /// ```edition2021
-    /// # use serde_derive::{Deserialize, Serialize};
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// # fn main() {
-    /// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-    /// enum E {
-    ///     A,
-    /// }
-    ///
-    /// let a = E::A;
-    /// assert_tokens(
-    ///     &a,
-    ///     &[Token::UnitVariant {
-    ///         name: "E",
-    ///         variant: "A",
-    ///     }],
-    /// );
-    /// # }
-    /// ```
-    UnitVariant {
-        name: &'static str,
-        variant: &'static str,
-    },
-
-    /// The header to a serialized newtype struct of the given name.
-    ///
-    /// After this header is the value contained in the newtype struct.
-    ///
-    /// ```edition2021
-    /// # use serde_derive::{Deserialize, Serialize};
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// # fn main() {
-    /// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-    /// struct N(String);
-    ///
-    /// let n = N("newtype".to_owned());
-    /// assert_tokens(
-    ///     &n,
-    ///     &[Token::NewtypeStruct { name: "N" }, Token::String("newtype")],
-    /// );
-    /// # }
-    /// ```
-    NewtypeStruct { name: &'static str },
-
-    /// The header to a newtype variant of an enum.
-    ///
-    /// After this header is the value contained in the newtype variant.
-    ///
-    /// ```edition2021
-    /// # use serde_derive::{Deserialize, Serialize};
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// # fn main() {
-    /// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-    /// enum E {
-    ///     B(u8),
-    /// }
-    ///
-    /// let b = E::B(0);
-    /// assert_tokens(
-    ///     &b,
-    ///     &[
-    ///         Token::NewtypeVariant {
-    ///             name: "E",
-    ///             variant: "B",
-    ///         },
-    ///         Token::U8(0),
-    ///     ],
-    /// );
-    /// # }
-    /// ```
-    NewtypeVariant {
-        name: &'static str,
-        variant: &'static str,
-    },
-
-    /// The header to a sequence.
-    ///
-    /// After this header are the elements of the sequence, followed by
-    /// `SeqEnd`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// let vec = vec!['a', 'b', 'c'];
-    /// assert_tokens(
-    ///     &vec,
-    ///     &[
-    ///         Token::Seq { len: Some(3) },
-    ///         Token::Char('a'),
-    ///         Token::Char('b'),
-    ///         Token::Char('c'),
-    ///         Token::SeqEnd,
-    ///     ],
-    /// );
-    /// ```
-    Seq { len: Option<usize> },
-
-    /// An indicator of the end of a sequence.
-    SeqEnd,
-
-    /// The header to a tuple.
-    ///
-    /// After this header are the elements of the tuple, followed by `TupleEnd`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// let tuple = ('a', 100);
-    /// assert_tokens(
-    ///     &tuple,
-    ///     &[
-    ///         Token::Tuple { len: 2 },
-    ///         Token::Char('a'),
-    ///         Token::I32(100),
-    ///         Token::TupleEnd,
-    ///     ],
-    /// );
-    /// ```
-    Tuple { len: usize },
-
-    /// An indicator of the end of a tuple.
-    TupleEnd,
-
-    /// The header to a tuple struct.
-    ///
-    /// After this header are the fields of the tuple struct, followed by
-    /// `TupleStructEnd`.
-    ///
-    /// ```edition2021
-    /// # use serde_derive::{Deserialize, Serialize};
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// # fn main() {
-    /// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-    /// struct T(u8, u8);
-    ///
-    /// let t = T(0, 0);
-    /// assert_tokens(
-    ///     &t,
-    ///     &[
-    ///         Token::TupleStruct { name: "T", len: 2 },
-    ///         Token::U8(0),
-    ///         Token::U8(0),
-    ///         Token::TupleStructEnd,
-    ///     ],
-    /// );
-    /// # }
-    /// ```
-    TupleStruct { name: &'static str, len: usize },
-
-    /// An indicator of the end of a tuple struct.
-    TupleStructEnd,
-
-    /// The header to a tuple variant of an enum.
-    ///
-    /// After this header are the fields of the tuple variant, followed by
-    /// `TupleVariantEnd`.
-    ///
-    /// ```edition2021
-    /// # use serde_derive::{Deserialize, Serialize};
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// # fn main() {
-    /// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-    /// enum E {
-    ///     C(u8, u8),
-    /// }
-    ///
-    /// let c = E::C(0, 0);
-    /// assert_tokens(
-    ///     &c,
-    ///     &[
-    ///         Token::TupleVariant {
-    ///             name: "E",
-    ///             variant: "C",
-    ///             len: 2,
-    ///         },
-    ///         Token::U8(0),
-    ///         Token::U8(0),
-    ///         Token::TupleVariantEnd,
-    ///     ],
-    /// );
-    /// # }
-    /// ```
-    TupleVariant {
-        name: &'static str,
-        variant: &'static str,
-        len: usize,
-    },
-
-    /// An indicator of the end of a tuple variant.
-    TupleVariantEnd,
-
-    /// The header to a map.
-    ///
-    /// After this header are the entries of the map, followed by `MapEnd`.
-    ///
-    /// ```edition2021
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// use std::collections::BTreeMap;
-    ///
-    /// let mut map = BTreeMap::new();
-    /// map.insert('A', 65);
-    /// map.insert('Z', 90);
-    ///
-    /// assert_tokens(
-    ///     &map,
-    ///     &[
-    ///         Token::Map { len: Some(2) },
-    ///         Token::Char('A'),
-    ///         Token::I32(65),
-    ///         Token::Char('Z'),
-    ///         Token::I32(90),
-    ///         Token::MapEnd,
-    ///     ],
-    /// );
-    /// ```
-    Map { len: Option<usize> },
-
-    /// An indicator of the end of a map.
-    MapEnd,
-
-    /// The header of a struct.
-    ///
-    /// After this header are the fields of the struct, followed by `StructEnd`.
-    ///
-    /// ```edition2021
-    /// # use serde_derive::{Deserialize, Serialize};
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// # fn main() {
-    /// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-    /// struct S {
-    ///     a: u8,
-    ///     b: u8,
-    /// }
-    ///
-    /// let s = S { a: 0, b: 0 };
-    /// assert_tokens(
-    ///     &s,
-    ///     &[
-    ///         Token::Struct { name: "S", len: 2 },
-    ///         Token::Str("a"),
-    ///         Token::U8(0),
-    ///         Token::Str("b"),
-    ///         Token::U8(0),
-    ///         Token::StructEnd,
-    ///     ],
-    /// );
-    /// # }
-    /// ```
-    Struct { name: &'static str, len: usize },
-
-    /// An indicator of the end of a struct.
-    StructEnd,
-
-    /// The header of a struct variant of an enum.
-    ///
-    /// After this header are the fields of the struct variant, followed by
-    /// `StructVariantEnd`.
-    ///
-    /// ```edition2021
-    /// # use serde_derive::{Deserialize, Serialize};
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// # fn main() {
-    /// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-    /// enum E {
-    ///     D { d: u8 },
-    /// }
-    ///
-    /// let d = E::D { d: 0 };
-    /// assert_tokens(
-    ///     &d,
-    ///     &[
-    ///         Token::StructVariant {
-    ///             name: "E",
-    ///             variant: "D",
-    ///             len: 1,
-    ///         },
-    ///         Token::Str("d"),
-    ///         Token::U8(0),
-    ///         Token::StructVariantEnd,
-    ///     ],
-    /// );
-    /// # }
-    /// ```
-    StructVariant {
-        name: &'static str,
-        variant: &'static str,
-        len: usize,
-    },
-
-    /// An indicator of the end of a struct variant.
-    StructVariantEnd,
-
-    /// The header to an enum of the given name.
-    ///
-    /// ```edition2021
-    /// # use serde_derive::{Deserialize, Serialize};
-    /// # use serde_test::{assert_tokens, Token};
-    /// #
-    /// # fn main() {
-    /// #[derive(Serialize, Deserialize, PartialEq, Debug)]
-    /// enum E {
-    ///     A,
-    ///     B(u8),
-    ///     C(u8, u8),
-    ///     D { d: u8 },
-    /// }
-    ///
-    /// let a = E::A;
-    /// assert_tokens(
-    ///     &a,
-    ///     &[Token::Enum { name: "E" }, Token::Str("A"), Token::Unit],
-    /// );
-    ///
-    /// let b = E::B(0);
-    /// assert_tokens(
-    ///     &b,
-    ///     &[Token::Enum { name: "E" }, Token::Str("B"), Token::U8(0)],
-    /// );
-    ///
-    /// let c = E::C(0, 0);
-    /// assert_tokens(
-    ///     &c,
-    ///     &[
-    ///         Token::Enum { name: "E" },
-    ///         Token::Str("C"),
-    ///         Token::Seq { len: Some(2) },
-    ///         Token::U8(0),
-    ///         Token::U8(0),
-    ///         Token::SeqEnd,
-    ///     ],
-    /// );
-    ///
-    /// let d = E::D { d: 0 };
-    /// assert_tokens(
-    ///     &d,
-    ///     &[
-    ///         Token::Enum { name: "E" },
-    ///         Token::Str("D"),
-    ///         Token::Map { len: Some(1) },
-    ///         Token::Str("d"),
-    ///         Token::U8(0),
-    ///         Token::MapEnd,
-    ///     ],
-    /// );
-    /// # }
-    /// ```
-    Enum { name: &'static str },
-}
-
-impl Display for Token {
-    fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-        Debug::fmt(self, formatter)
-    }
-}

test_suite/Cargo.toml

@@ -15,7 +15,7 @@ serde = { path = "../serde" }
 automod = "1.0.1"
 fnv = "1.0"
 rustversion = "1.0"
-serde = { path = "../serde", features = ["rc", "derive"] }
+serde = { path = "../serde", features = ["rc"] }
 serde_derive = { path = "../serde_derive", features = ["deserialize_in_place"] }
-serde_test = { path = "../serde_test" }
+serde_test = "1.0.176"
 trybuild = { version = "1.0.66", features = ["diff"] }

test_suite/no_std/Cargo.toml

@@ -7,6 +7,7 @@ publish = false
 
 [dependencies]
 libc = { version = "0.2", default-features = false }
-serde = { path = "../../serde", default-features = false, features = ["derive"] }
+serde = { path = "../../serde", default-features = false }
+serde_derive = { path = "../../serde_derive" }
 
 [workspace]

test_suite/no_std/src/main.rs

@@ -19,7 +19,7 @@ fn panic(_info: &core::panic::PanicInfo) -> ! {
 
 //////////////////////////////////////////////////////////////////////////////
 
-use serde::{Deserialize, Serialize};
+use serde_derive::{Deserialize, Serialize};
 
 #[derive(Serialize, Deserialize)]
 struct Unit;

test_suite/tests/regression/issue2371.rs

@@ -1,4 +1,4 @@
-use serde::Deserialize;
+use serde_derive::Deserialize;
 
 #[derive(Deserialize)]
 pub struct Nested;

test_suite/tests/regression/issue2409.rs

@@ -1,4 +1,4 @@
-use serde::Deserialize;
+use serde_derive::Deserialize;
 
 macro_rules! bug {
     ($serde_path:literal) => {

test_suite/tests/test_annotations.rs

@@ -10,18 +10,17 @@
     clippy::uninlined_format_args,
 )]
 
-use serde::de::{self, IgnoredAny, MapAccess, Unexpected, Visitor};
-use serde::{Deserialize, Deserializer, Serialize, Serializer};
-
-use std::collections::{BTreeMap, HashMap};
-use std::convert::TryFrom;
-use std::fmt;
-use std::marker::PhantomData;
-
+use serde::de::{self, Deserialize, Deserializer, IgnoredAny, MapAccess, Unexpected, Visitor};
+use serde::ser::{Serialize, Serializer};
+use serde_derive::{Deserialize, Serialize};
 use serde_test::{
     assert_de_tokens, assert_de_tokens_error, assert_ser_tokens, assert_ser_tokens_error,
     assert_tokens, Token,
 };
+use std::collections::{BTreeMap, HashMap};
+use std::convert::TryFrom;
+use std::fmt;
+use std::marker::PhantomData;
 
 trait MyDefault: Sized {
     fn my_default() -> Self;
@@ -2261,6 +2260,39 @@ fn test_externally_tagged_enum_containing_flatten() {
     );
 }
 
+#[test]
+fn test_internally_tagged_enum_with_skipped_conflict() {
+    #[derive(Serialize, Deserialize, PartialEq, Debug)]
+    #[serde(tag = "t")]
+    enum Data {
+        A,
+        #[serde(skip)]
+        #[allow(dead_code)]
+        B {
+            t: String,
+        },
+        C {
+            #[serde(default, skip)]
+            t: String,
+        },
+    }
+
+    let data = Data::C { t: String::new() };
+
+    assert_tokens(
+        &data,
+        &[
+            Token::Struct {
+                name: "Data",
+                len: 1,
+            },
+            Token::Str("t"),
+            Token::Str("C"),
+            Token::StructEnd,
+        ],
+    );
+}
+
 #[test]
 fn test_internally_tagged_enum_containing_flatten() {
     #[derive(Serialize, Deserialize, PartialEq, Debug)]
@@ -2965,7 +2997,9 @@ fn test_expecting_message() {
     #[derive(Deserialize)]
     #[serde(expecting = "something strange...")]
     struct Struct {
+        #[allow(dead_code)]
         question: String,
+        #[allow(dead_code)]
         answer: u32,
     }
 

test_suite/tests/test_borrow.rs

@@ -5,10 +5,9 @@
 )]
 
 use serde::de::value::{BorrowedStrDeserializer, MapDeserializer};
-use serde::de::IntoDeserializer;
-use serde::{Deserialize, Deserializer};
+use serde::de::{Deserialize, Deserializer, IntoDeserializer};
+use serde_derive::Deserialize;
 use serde_test::{assert_de_tokens, assert_de_tokens_error, Token};
-
 use std::borrow::Cow;
 
 #[test]

test_suite/tests/test_de.rs

@@ -10,6 +10,10 @@
 )]
 #![cfg_attr(feature = "unstable", feature(never_type))]
 
+use fnv::FnvHasher;
+use serde::de::{Deserialize, DeserializeOwned, Deserializer, IntoDeserializer};
+use serde_derive::Deserialize;
+use serde_test::{assert_de_tokens, Configure, Token};
 use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
 use std::default::Default;
 use std::ffi::{CStr, CString, OsString};
@@ -27,16 +31,10 @@ use std::sync::atomic::{
     AtomicBool, AtomicI16, AtomicI32, AtomicI8, AtomicIsize, AtomicU16, AtomicU32, AtomicU8,
     AtomicUsize, Ordering,
 };
-use std::sync::{Arc, Weak as ArcWeak};
-use std::time::{Duration, UNIX_EPOCH};
-
 #[cfg(target_arch = "x86_64")]
 use std::sync::atomic::{AtomicI64, AtomicU64};
-
-use fnv::FnvHasher;
-use serde::de::{DeserializeOwned, IntoDeserializer};
-use serde::{Deserialize, Deserializer};
-use serde_test::{assert_de_tokens, Configure, Token};
+use std::sync::{Arc, Weak as ArcWeak};
+use std::time::{Duration, UNIX_EPOCH};
 
 #[macro_use]
 mod macros;
@@ -46,6 +44,9 @@ mod macros;
 #[derive(Copy, Clone, PartialEq, Debug, Deserialize)]
 struct UnitStruct;
 
+#[derive(Copy, Clone, PartialEq, Debug, Deserialize)]
+struct GenericUnitStruct<const N: u8>;
+
 #[derive(PartialEq, Debug, Deserialize)]
 struct NewtypeStruct(i32);
 
@@ -883,6 +884,17 @@ fn test_unit_struct() {
     test(UnitStruct, &[Token::UnitStruct { name: "UnitStruct" }]);
 }
 
+#[test]
+fn test_generic_unit_struct() {
+    test(GenericUnitStruct::<8>, &[Token::Unit]);
+    test(
+        GenericUnitStruct::<8>,
+        &[Token::UnitStruct {
+            name: "GenericUnitStruct",
+        }],
+    );
+}
+
 #[test]
 fn test_newtype_struct() {
     test(

test_suite/tests/test_de_error.rs

@@ -5,8 +5,8 @@
 )]
 #![cfg_attr(feature = "unstable", feature(never_type))]
 
-use serde::de::IntoDeserializer;
-use serde::Deserialize;
+use serde::de::{Deserialize, IntoDeserializer};
+use serde_derive::Deserialize;
 use serde_test::{assert_de_tokens_error, Token};
 use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
 use std::ffi::{CStr, CString};

test_suite/tests/test_gen.rs

@@ -20,9 +20,9 @@
     clippy::type_repetition_in_bounds
 )]
 
-use serde::de::DeserializeOwned;
-use serde::{Deserialize, Deserializer, Serialize, Serializer};
-
+use serde::de::{Deserialize, DeserializeOwned, Deserializer};
+use serde::ser::{Serialize, Serializer};
+use serde_derive::{Deserialize, Serialize};
 use std::borrow::Cow;
 use std::marker::PhantomData;
 use std::option::Option as StdOption;
@@ -404,7 +404,7 @@ fn test_gen() {
     }
 
     mod vis {
-        use serde::{Deserialize, Serialize};
+        use serde_derive::{Deserialize, Serialize};
 
         pub struct S;
 
@@ -636,7 +636,7 @@ fn test_gen() {
 
     mod restricted {
         mod inner {
-            use serde::{Deserialize, Serialize};
+            use serde_derive::{Deserialize, Serialize};
 
             #[derive(Serialize, Deserialize)]
             struct Restricted {
@@ -662,6 +662,7 @@ fn test_gen() {
 
     #[derive(Deserialize)]
     struct ImplicitlyBorrowedOption<'a> {
+        #[allow(dead_code)]
         option: std::option::Option<&'a str>,
     }
 
@@ -692,7 +693,9 @@ fn test_gen() {
 
     #[derive(Deserialize)]
     struct RelObject<'a> {
+        #[allow(dead_code)]
         ty: &'a str,
+        #[allow(dead_code)]
         id: String,
     }
 
@@ -736,6 +739,7 @@ fn test_gen() {
         ($field:ty) => {
             #[derive(Deserialize)]
             struct MacroRules<'a> {
+                #[allow(dead_code)]
                 field: $field,
             }
         };
@@ -752,6 +756,7 @@ fn test_gen() {
     #[derive(Deserialize)]
     struct BorrowLifetimeInsideMacro<'a> {
         #[serde(borrow = "'a")]
+        #[allow(dead_code)]
         f: mac!(Cow<'a, str>),
     }
 
@@ -760,6 +765,10 @@ fn test_gen() {
         #[serde(serialize_with = "vec_first_element")]
         vec: Vec<Self>,
     }
+
+    #[derive(Deserialize)]
+    #[serde(bound(deserialize = "[&'de str; N]: Copy"))]
+    struct GenericUnitStruct<const N: usize>;
 }
 
 //////////////////////////////////////////////////////////////////////////

test_suite/tests/test_identifier.rs

@@ -2,7 +2,7 @@
 
 #![allow(clippy::derive_partial_eq_without_eq)]
 
-use serde::Deserialize;
+use serde_derive::Deserialize;
 use serde_test::{assert_de_tokens, Token};
 
 #[test]

test_suite/tests/test_ignored_any.rs

@@ -2,9 +2,11 @@
 
 use serde::de::value::{Error, MapDeserializer, SeqDeserializer};
 use serde::de::{
-    DeserializeSeed, EnumAccess, IgnoredAny, IntoDeserializer, VariantAccess, Visitor,
+    Deserialize, DeserializeSeed, Deserializer, EnumAccess, IgnoredAny, IntoDeserializer,
+    VariantAccess, Visitor,
 };
-use serde::{forward_to_deserialize_any, Deserialize, Deserializer};
+use serde::forward_to_deserialize_any;
+use serde_derive::Deserialize;
 
 #[derive(PartialEq, Debug, Deserialize)]
 enum Target {

test_suite/tests/test_macros.rs

@@ -8,11 +8,10 @@
 
 mod bytes;
 
-use serde::{Deserialize, Serialize};
+use serde_derive::{Deserialize, Serialize};
 use serde_test::{
     assert_de_tokens, assert_de_tokens_error, assert_ser_tokens, assert_tokens, Token,
 };
-
 use std::collections::BTreeMap;
 use std::marker::PhantomData;
 
@@ -1924,6 +1923,62 @@ fn test_rename_all() {
     );
 }
 
+#[test]
+fn test_rename_all_fields() {
+    #[derive(Serialize, Deserialize, Debug, PartialEq)]
+    #[serde(rename_all_fields = "kebab-case")]
+    enum E {
+        V1,
+        V2(bool),
+        V3 {
+            a_field: bool,
+            another_field: bool,
+            #[serde(rename = "last-field")]
+            yet_another_field: bool,
+        },
+        #[serde(rename_all = "snake_case")]
+        V4 {
+            a_field: bool,
+        },
+    }
+
+    assert_tokens(
+        &E::V3 {
+            a_field: true,
+            another_field: true,
+            yet_another_field: true,
+        },
+        &[
+            Token::StructVariant {
+                name: "E",
+                variant: "V3",
+                len: 3,
+            },
+            Token::Str("a-field"),
+            Token::Bool(true),
+            Token::Str("another-field"),
+            Token::Bool(true),
+            Token::Str("last-field"),
+            Token::Bool(true),
+            Token::StructVariantEnd,
+        ],
+    );
+
+    assert_tokens(
+        &E::V4 { a_field: true },
+        &[
+            Token::StructVariant {
+                name: "E",
+                variant: "V4",
+                len: 1,
+            },
+            Token::Str("a_field"),
+            Token::Bool(true),
+            Token::StructVariantEnd,
+        ],
+    );
+}
+
 #[test]
 fn test_untagged_newtype_variant_containing_unit_struct_not_map() {
     #[derive(Debug, PartialEq, Serialize, Deserialize)]

test_suite/tests/test_remote.rs

@@ -1,6 +1,6 @@
 #![allow(clippy::redundant_field_names)]
 
-use serde::{Deserialize, Serialize};
+use serde_derive::{Deserialize, Serialize};
 
 mod remote {
     pub struct Unit;

test_suite/tests/test_roundtrip.rs

@@ -1,5 +1,4 @@
 use serde_test::{assert_tokens, Configure, Token};
-
 use std::net;
 
 #[macro_use]

test_suite/tests/test_self.rs

@@ -1,6 +1,6 @@
 #![allow(clippy::used_underscore_binding)]
 
-use serde::{Deserialize, Serialize};
+use serde_derive::{Deserialize, Serialize};
 
 #[test]
 fn test_self() {

test_suite/tests/test_ser.rs

@@ -1,6 +1,9 @@
 #![allow(clippy::derive_partial_eq_without_eq, clippy::unreadable_literal)]
 #![cfg_attr(feature = "unstable", feature(never_type))]
 
+use fnv::FnvHasher;
+use serde_derive::Serialize;
+use serde_test::{assert_ser_tokens, assert_ser_tokens_error, Configure, Token};
 use std::cell::RefCell;
 use std::collections::{BTreeMap, BTreeSet, HashMap, HashSet};
 use std::ffi::CString;
@@ -9,21 +12,16 @@ use std::num::Wrapping;
 use std::ops::Bound;
 use std::path::{Path, PathBuf};
 use std::rc::{Rc, Weak as RcWeak};
+#[cfg(unix)]
+use std::str;
 use std::sync::atomic::{
     AtomicBool, AtomicI16, AtomicI32, AtomicI8, AtomicIsize, AtomicU16, AtomicU32, AtomicU8,
     AtomicUsize,
 };
-use std::sync::{Arc, Mutex, RwLock, Weak as ArcWeak};
-use std::time::{Duration, UNIX_EPOCH};
-
-#[cfg(unix)]
-use std::str;
 #[cfg(target_arch = "x86_64")]
 use std::sync::atomic::{AtomicI64, AtomicU64};
-
-use fnv::FnvHasher;
-use serde::Serialize;
-use serde_test::{assert_ser_tokens, assert_ser_tokens_error, Configure, Token};
+use std::sync::{Arc, Mutex, RwLock, Weak as ArcWeak};
+use std::time::{Duration, UNIX_EPOCH};
 
 #[macro_use]
 mod macros;

test_suite/tests/test_serde_path.rs

@@ -5,7 +5,7 @@
 
 #[test]
 fn test_gen_custom_serde() {
-    #[derive(serde::Serialize, serde::Deserialize)]
+    #[derive(serde_derive::Serialize, serde_derive::Deserialize)]
     #[serde(crate = "fake_serde")]
     struct Foo;
 

test_suite/tests/test_value.rs

@@ -1,8 +1,8 @@
 #![allow(clippy::derive_partial_eq_without_eq, clippy::similar_names)]
 
 use serde::de::value::{self, MapAccessDeserializer};
-use serde::de::{IntoDeserializer, MapAccess, Visitor};
-use serde::{Deserialize, Deserializer};
+use serde::de::{Deserialize, Deserializer, IntoDeserializer, MapAccess, Visitor};
+use serde_derive::Deserialize;
 use serde_test::{assert_de_tokens, Token};
 use std::fmt;
 

test_suite/tests/ui/conflict/flatten-newtype-struct.rs

@@ -1,5 +1,4 @@
 use serde_derive::Serialize;
-
 use std::collections::HashMap;
 
 #[derive(Serialize)]

test_suite/tests/ui/conflict/flatten-newtype-struct.stderr

@@ -1,5 +1,5 @@
 error: #[serde(flatten)] cannot be used on newtype structs
- --> tests/ui/conflict/flatten-newtype-struct.rs:6:12
+ --> tests/ui/conflict/flatten-newtype-struct.rs:5:12
   |
-6 | struct Foo(#[serde(flatten)] HashMap<String, String>);
+5 | struct Foo(#[serde(flatten)] HashMap<String, String>);
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

test_suite/tests/ui/conflict/flatten-tuple-struct.rs

@@ -1,5 +1,4 @@
 use serde_derive::Serialize;
-
 use std::collections::HashMap;
 
 #[derive(Serialize)]

test_suite/tests/ui/conflict/flatten-tuple-struct.stderr

@@ -1,5 +1,5 @@
 error: #[serde(flatten)] cannot be used on tuple structs
- --> tests/ui/conflict/flatten-tuple-struct.rs:6:17
+ --> tests/ui/conflict/flatten-tuple-struct.rs:5:17
   |
-6 | struct Foo(u32, #[serde(flatten)] HashMap<String, String>);
+5 | struct Foo(u32, #[serde(flatten)] HashMap<String, String>);
   |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

test_suite/tests/ui/default-attribute/enum.stderr

@@ -1,5 +1,5 @@
 error: #[serde(default)] can only be used on structs with named fields
- --> tests/ui/default-attribute/enum.rs:5:1
+ --> tests/ui/default-attribute/enum.rs:4:9
   |
-5 | enum E {
-  | ^^^^
+4 | #[serde(default)]
+  |         ^^^^^^^

test_suite/tests/ui/default-attribute/enum_path.stderr

@@ -1,5 +1,5 @@
 error: #[serde(default = "...")] can only be used on structs with named fields
- --> tests/ui/default-attribute/enum_path.rs:5:1
+ --> tests/ui/default-attribute/enum_path.rs:4:9
   |
-5 | enum E {
-  | ^^^^
+4 | #[serde(default = "default_e")]
+  |         ^^^^^^^^^^^^^^^^^^^^^

test_suite/tests/ui/default-attribute/nameless_struct_fields_path.stderr

@@ -1,5 +1,5 @@
 error: #[serde(default = "...")] can only be used on structs with named fields
- --> tests/ui/default-attribute/nameless_struct_fields_path.rs:5:9
+ --> tests/ui/default-attribute/nameless_struct_fields_path.rs:4:9
   |
-5 | struct T(u8, u8);
-  |         ^^^^^^^^
+4 | #[serde(default = "default_t")]
+  |         ^^^^^^^^^^^^^^^^^^^^^

test_suite/tests/ui/enum-representation/untagged-struct.stderr

@@ -1,5 +1,5 @@
 error: #[serde(untagged)] can only be used on enums
- --> tests/ui/enum-representation/untagged-struct.rs:5:1
+ --> tests/ui/enum-representation/untagged-struct.rs:4:9
   |
-5 | struct S;
-  | ^^^^^^
+4 | #[serde(untagged)]
+  |         ^^^^^^^^

test_suite/tests/ui/malformed/str_suffix.rs

@@ -1,4 +1,4 @@
-use serde::Serialize;
+use serde_derive::Serialize;
 
 #[derive(Serialize)]
 #[serde(bound = ""huh)]

test_suite/tests/ui/struct-representation/internally-tagged-tuple.stderr

@@ -1,5 +1,5 @@
 error: #[serde(tag = "...")] can only be used on enums and structs with named fields
- --> tests/ui/struct-representation/internally-tagged-tuple.rs:5:9
+ --> tests/ui/struct-representation/internally-tagged-tuple.rs:4:9
   |
-5 | struct S(u8, u8);
-  |         ^^^^^^^^
+4 | #[serde(tag = "type")]
+  |         ^^^^^^^^^^^^

test_suite/tests/ui/struct-representation/internally-tagged-unit.stderr

@@ -1,7 +1,5 @@
 error: #[serde(tag = "...")] can only be used on enums and structs with named fields
- --> tests/ui/struct-representation/internally-tagged-unit.rs:3:10
+ --> tests/ui/struct-representation/internally-tagged-unit.rs:4:9
   |
-3 | #[derive(Serialize)]
-  |          ^^^^^^^^^
-  |
-  = note: this error originates in the derive macro `Serialize` (in Nightly builds, run with -Z macro-backtrace for more info)
+4 | #[serde(tag = "type")]
+  |         ^^^^^^^^^^^^

test_suite/tests/unstable/mod.rs

@@ -1,4 +1,4 @@
-use serde::{Deserialize, Serialize};
+use serde_derive::{Deserialize, Serialize};
 use serde_test::{assert_tokens, Token};
 
 #[test]