Release 1.0.177

Merge pull request #2536 from jplatte/jplatte/error-span
Update error span for attribute / data kind mismatches
2026-04-23 07:08:02 +00:00 · 2023-07-27 10:51:22 -07:00 · 2023-07-27 10:50:26 -07:00 · 2023-07-27 10:47:45 +02:00 · 2023-07-27 00:51:57 -07:00 · 2023-07-27 00:45:45 -07:00
59 changed files with 336 additions and 3288 deletions
@@ -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)' || ''}}
@@ -88,7 +86,6 @@ 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 +115,7 @@ 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 +126,15 @@ 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 +156,6 @@ 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

@@ -3,6 +3,8 @@ members = [
    "serde",
    "serde_derive",
    "serde_derive_internals",
-    "serde_test",
    "test_suite",
 ]
+
+[patch.crates-io]
+serde = { path = "serde" }
@@ -1,6 +1,6 @@
 [package]
 name = "serde_derive"
-version = "1.0.175"
+version = "1.0.177"
 authors = ["David Tolnay <dtolnay@gmail.com>"]
 publish = false

@@ -1,6 +1,6 @@
 [package]
 name = "serde_derive"
-version = "1.0.175"
+version = "1.0.177"
 authors = ["David Tolnay <dtolnay@gmail.com>"]
 categories = ["no-std", "no-std::no-alloc"]
 description = "Implementation of #[derive(Serialize, Deserialize)]"
@@ -13,10 +13,7 @@
 //!
 //! [https://serde.rs/derive.html]: https://serde.rs/derive.html

-#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.175")]
-#![allow(unknown_lints, bare_trait_objects)]
-
-extern crate proc_macro;
+#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.177")]

 #[cfg(not(all(target_arch = "x86_64", target_os = "linux", target_env = "gnu")))]
 include!("lib_from_source.rs");
@@ -1,14 +1,7 @@
-#[macro_use]
-extern crate quote;
-#[macro_use]
-extern crate syn;
-
+extern crate proc_macro;
 extern crate proc_macro2;
-
-mod internals;
-
-use proc_macro::TokenStream;
-use syn::DeriveInput;
+extern crate quote;
+extern crate syn;

 #[macro_use]
 mod bound;
@@ -17,11 +10,15 @@ mod fragment;

 mod de;
 mod dummy;
+mod internals;
 mod pretend;
 mod ser;
 mod this;
 mod try;

+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);
@@ -1,11 +1,14 @@
+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::{Read, Write};
+use std::io::{ErrorKind, Read, Write};
 use std::iter::FromIterator;
+use std::path::Path;
 use std::process::{Command, ExitStatus, Stdio};
 use std::str::FromStr;

@@ -29,15 +32,27 @@ fn derive(select: u8, input: TokenStream) -> TokenStream {
        memory.linearize_token(token, &mut buf);
    }

-    let path = concat!(
+    let exe_path = Path::new(concat!(
        env!("CARGO_MANIFEST_DIR"),
        "/serde_derive-x86_64-unknown-linux-gnu",
-    );
-    let mut child = Command::new(path)
+    ));
+    let mut child = match Command::new(exe_path)
        .stdin(Stdio::piped())
        .stdout(Stdio::piped())
        .spawn()
-        .expect("failed to spawn process");
+    {
+        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();
@@ -1,6 +1,6 @@
 [package]
 name = "serde"
-version = "1.0.175" # remember to update html_root_url and serde_derive dependency
+version = "1.0.177" # 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"]
@@ -14,7 +14,7 @@ repository = "https://github.com/serde-rs/serde"
 rust-version = "1.19"

 [dependencies]
-serde_derive = { version = "=1.0.175", optional = true, path = "../serde_derive" }
+serde_derive = { version = "=1.0.177", optional = true, path = "../serde_derive" }

 [dev-dependencies]
 serde_derive = { version = "1", path = "../serde_derive" }
@@ -93,7 +93,7 @@
 ////////////////////////////////////////////////////////////////////////////////

 // Serde types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/serde/1.0.175")]
+#![doc(html_root_url = "https://docs.rs/serde/1.0.177")]
 // 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
@@ -335,8 +335,6 @@ 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"]`.
@@ -1,6 +1,6 @@
 [package]
 name = "serde_derive"
-version = "1.0.175" # remember to update html_root_url
+version = "1.0.177" # 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)]"
@@ -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
@@ -1,21 +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 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::{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 std::collections::BTreeSet;
-use std::ptr;
+use syn::{parse_quote, Ident, Index, Member};

 pub fn expand_derive_deserialize(input: &mut syn::DeriveInput) -> syn::Result<TokenStream> {
    replace_receiver(input);
@@ -1,7 +1,6 @@
+use crate::try;
 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();
@@ -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.
@@ -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()))
@@ -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);
        }
@@ -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> {
@@ -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();

@@ -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.
 ///
@@ -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,
@@ -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) {
@@ -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");
@@ -13,8 +13,7 @@
 //!
 //! [https://serde.rs/derive.html]: https://serde.rs/derive.html

-#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.175")]
-#![allow(unknown_lints, bare_trait_objects)]
+#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.177")]
 // Ignored clippy lints
 #![allow(
    // clippy false positive: https://github.com/rust-lang/rust-clippy/issues/7054
@@ -63,15 +62,12 @@
 )]
 #![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;

@@ -80,6 +76,8 @@ 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]
@@ -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
@@ -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);
@@ -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 {
@@ -1,4 +1,5 @@
 use proc_macro2::{Punct, Spacing, TokenStream};
+use quote::quote;

 // None of our generated code requires the `From::from` error conversion
 // performed by the standard library's `try!` macro. With this simplified macro
@@ -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")]
@@ -1,28 +0,0 @@
-[package]
-name = "serde_test"
-version = "1.0.175" # 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"
-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", path = "../serde", features = ["rc"] }
-serde_derive = { version = "1", path = "../serde_derive" }
-
-[lib]
-doc-scrape-examples = false
-
-[package.metadata.docs.rs]
-targets = ["x86_64-unknown-linux-gnu"]
-rustdoc-args = ["--generate-link-to-definition"]
@@ -1 +0,0 @@
-../LICENSE-APACHE
@@ -1 +0,0 @@
-../LICENSE-MIT
@@ -1 +0,0 @@
-../README.md
@@ -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()
-}
@@ -1 +0,0 @@
-../crates-io.md
@@ -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());
-    }
-}
@@ -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);
@@ -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
-    }
-}
@@ -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
-    }
-}
@@ -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/1.0.175")]
-#![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};
@@ -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(())
-    }
-}
@@ -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)
-    }
-}
@@ -17,5 +17,5 @@ fnv = "1.0"
 rustversion = "1.0"
 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"] }
@@ -13,16 +13,14 @@
 use serde::de::{self, Deserialize, Deserializer, IgnoredAny, MapAccess, Unexpected, Visitor};
 use serde::ser::{Serialize, Serializer};
 use serde_derive::{Deserialize, Serialize};
-
-use std::collections::{BTreeMap, HashMap};
-use std::convert::TryFrom;
-use std::fmt;
-use std::marker::PhantomData;
-
 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;
@@ -2262,6 +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)]
@@ -8,7 +8,6 @@ use serde::de::value::{BorrowedStrDeserializer, MapDeserializer};
 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]
@@ -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::{Deserialize, DeserializeOwned, Deserializer, IntoDeserializer};
-use serde_derive::Deserialize;
-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;
@@ -23,7 +23,6 @@
 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;
@@ -12,7 +12,6 @@ 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)]
@@ -1,5 +1,4 @@
 use serde_test::{assert_tokens, Configure, Token};
-
 use std::net;

 #[macro_use]
@@ -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_derive::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;
@@ -1,5 +1,4 @@
 use serde_derive::Serialize;
-
 use std::collections::HashMap;

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

 #[derive(Serialize)]
@@ -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>);
  |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -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)]
+  |         ^^^^^^^
@@ -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")]
+  |         ^^^^^^^^^^^^^^^^^^^^^
@@ -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")]
+  |         ^^^^^^^^^^^^^^^^^^^^^
@@ -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)]
+  |         ^^^^^^^^
@@ -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")]
+  |         ^^^^^^^^^^^^
@@ -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")]
+  |         ^^^^^^^^^^^^
Author	SHA1	Message	Date
David Tolnay	0676673ca5	Release 1.0.177	2023-07-27 10:51:22 -07:00
David Tolnay	7a4335d664	Merge pull request #2536 from jplatte/jplatte/error-span Update error span for attribute / data kind mismatches	2023-07-27 10:50:26 -07:00
Jonas Platte	31a0e73489	Update error span for attribute / data kind mismatches	2023-07-27 10:47:45 +02:00
David Tolnay	74fe70855f	Ignore return_self_not_must_use pedantic clippy lint warning: missing `#[must_use]` attribute on a method returning `Self` --> serde_derive_internals/src/attr.rs:204:5 \| 204 \| / pub fn or(self, other_rules: Self) -> Self { 205 \| \| Self { 206 \| \| serialize: self.serialize.or(other_rules.serialize), 207 \| \| deserialize: self.deserialize.or(other_rules.deserialize), 208 \| \| } 209 \| \| } \| \|_____^ \| = help: consider adding the `#[must_use]` attribute to the method or directly to the `Self` type = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#return_self_not_must_use = note: `-W clippy::return-self-not-must-use` implied by `-W clippy::pedantic` warning: missing `#[must_use]` attribute on a method returning `Self` --> serde_derive_internals/src/case.rs:112:5 \| 112 \| / pub fn or(self, rule_b: Self) -> Self { 113 \| \| match self { 114 \| \| None => rule_b, 115 \| \| _ => self, 116 \| \| } 117 \| \| } \| \|_____^ \| = help: consider adding the `#[must_use]` attribute to the method or directly to the `Self` type = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#return_self_not_must_use	2023-07-27 00:51:57 -07:00
David Tolnay	e74925bc43	Merge pull request #1695 from jplatte/rename_all_fields Add #[serde(rename_all_fields = "foo")] attribute	2023-07-27 00:45:45 -07:00
Jonas Platte	56be1c203e	Pass RenameRule, RenameAllRules by value	2023-07-27 09:19:42 +02:00
Jonas Platte	2f9bf4d3eb	Add #[serde(rename_all_fields = "foo")] attribute	2023-07-27 09:19:42 +02:00
David Tolnay	ad94aed753	Merge pull request #2535 from dtolnay/baretrait Restore bare_trait_objects lint within serde_derive code	2023-07-26 14:26:02 -07:00
David Tolnay	30db83fc44	Restore bare_trait_objects lint within serde_derive code	2023-07-26 14:18:25 -07:00
David Tolnay	b0f7b00e1f	Resolve manual_string_new pedantic clippy lint warning: empty String is being created manually --> test_suite/tests/test_annotations.rs:2280:29 \| 2280 \| let data = Data::C { t: "".to_string() }; \| ^^^^^^^^^^^^^^ help: consider using: `String::new()` \| = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#manual_string_new = note: `-W clippy::manual-string-new` implied by `-W clippy::pedantic`	2023-07-26 13:46:28 -07:00
David Tolnay	7255e192d8	Delete unused statement from PR 2266 test	2023-07-26 13:45:49 -07:00
David Tolnay	2102e1aa42	Format PR 2266 tests with rustfmt	2023-07-26 13:41:56 -07:00
David Tolnay	85d5c1fd38	Release 1.0.176	2023-07-26 13:37:44 -07:00
David Tolnay	b789286bc3	Merge pull request #2266 from flisky/master fix: don't check skipped variant with internal tag	2023-07-26 13:36:33 -07:00
David Tolnay	a6a8a334f7	Add CI on macOS for the non-precompiled codepath	2023-07-26 01:03:20 -07:00
David Tolnay	78a11a27b6	Skip an extra trip through filesystem on the critical path	2023-07-26 00:58:34 -07:00
David Tolnay	d2d7bad04a	Improve error message on missing serde_derive exe	2023-07-26 00:52:09 -07:00
David Tolnay	b978854258	Eliminate parse_macro_input conflict in precompiled mode	2023-07-26 00:44:55 -07:00
David Tolnay	0fb672a1ef	Eliminate #[macro_use] from serde_derive	2023-07-25 23:23:24 -07:00
David Tolnay	dd9913675d	Ungroup imports	2023-07-25 23:06:34 -07:00
David Tolnay	11677ad926	Merge pull request #2533 from dtolnay/test Move serde_test out to serde-rs/test	2023-07-25 22:52:36 -07:00
David Tolnay	25a53f10db	Move serde_test out to serde-rs/test	2023-07-25 22:48:39 -07:00
David Tolnay	26e2ef001c	Delete deprecated AsciiExt extension trait import This has been superseded by inherent methods since Rust 1.26.	2023-07-25 21:07:33 -07:00
David Tolnay	30f79b3b2e	Eliminate 2015-style module system imports from serde_derive	2023-07-25 20:56:19 -07:00
David Tolnay	89f84c2915	Merge pull request #2532 from dtolnay/macrouse Delete unused serde_derive #[macro_use]	2023-07-25 18:55:14 -07:00
David Tolnay	6882285be0	Move extern crate proc_macro into each possible lib.rs This makes it slightly more convenient to use the following as a Reindeer fixup for those that prefer to build from source: extra_mapped_srcs = { "src/lib_from_source.rs" = "src/lib.rs" } [platform_fixups.'cfg(all(target_arch = "x86_64", target_os = "linux", target_env = "gnu"))'] extra_deps = [":proc-macro2", ":quote", ":syn"] as opposed to checking in a whole new file containing the `extern crate proc_macro` + `include!("lib_from_source.rs")`.	2023-07-25 18:54:41 -07:00
David Tolnay	3260bc5896	Delete unused serde_derive #[macro_use] In old versions of rustc (1.15 through 1.29) it would cause a warning if this #[macro_use] was not present. warning: proc macro crates and `#[no_link]` crates have no effect without `#[macro_use]` --> serde/src/lib.rs:340:1 \| 340 \| extern crate serde_derive; \| ^^^^^^^^^^^^^^^^^^^^^^^^^^ These days serde_derive requires a newer compiler than that, so the bogus warning would never occur.	2023-07-25 18:47:52 -07:00
Yin Jifeng	983347484e	fix: don't check skipped variant with internal tag	2022-08-23 20:19:34 +08:00