Release 1.0.154

Fix generation of non-existent lifetime `'de` when enum contains a #[serde(flatten)] field and a `'static` reference

.github/workflows/ci.yml

@@ -20,10 +20,6 @@ jobs:
       - uses: actions/checkout@v3
       - uses: dtolnay/rust-toolchain@nightly
       - run: cd test_suite && cargo test --features unstable
-      - uses: dtolnay/install@cargo-expand
-        if: github.event_name != 'pull_request'
-      - run: cd test_suite && cargo test --features expandtest --test expandtest -- --include-ignored
-        if: github.event_name != 'pull_request'
 
   windows:
     name: Test suite (windows)
@@ -75,24 +71,6 @@ jobs:
           RUSTFLAGS: --cfg exhaustive ${{env.RUSTFLAGS}}
         if: matrix.os != 'windows'
 
-  msrv:
-    name: Rust 1.13.0
-    runs-on: ubuntu-latest
-    timeout-minutes: 45
-    steps:
-      - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@1.13.0
-      - name: Get timestamp for cache
-        id: date
-        run: echo yearmo=$(date +%Y%m) >> $GITHUB_OUTPUT
-      - uses: actions/cache@v1
-        with:
-          path: ~/.cargo/registry/index
-          key: cargo-registry-index-${{steps.date.outputs.yearmo}}
-      - run: cd serde && cargo build --features rc
-      - run: cd serde && cargo build --no-default-features
-      - run: cd serde_test && cargo build
-
   build:
     name: Rust ${{matrix.rust}}
     runs-on: ubuntu-latest
@@ -106,8 +84,10 @@ jobs:
       - uses: dtolnay/rust-toolchain@master
         with:
           toolchain: ${{matrix.rust}}
+      - 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}}
@@ -147,29 +127,6 @@ jobs:
       - uses: dtolnay/rust-toolchain@1.36.0
       - run: cd serde && cargo build --no-default-features --features alloc
 
-  emscripten:
-    name: Emscripten
-    runs-on: ubuntu-latest
-    timeout-minutes: 45
-    steps:
-      - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@nightly
-      - uses: actions/setup-node@v1
-        with:
-          node-version: 9
-      - name: Install cargo-web
-        run: |
-          CARGO_WEB_RELEASE=$(curl -L -s -H Accept:application/json https://github.com/koute/cargo-web/releases/latest)
-          CARGO_WEB_VERSION=$(echo "${CARGO_WEB_RELEASE}" | jq -r .tag_name)
-          CARGO_WEB_URL="https://github.com/koute/cargo-web/releases/download/${CARGO_WEB_VERSION}/cargo-web-x86_64-unknown-linux-gnu.gz"
-          mkdir -p ~/.cargo/bin
-          curl -L "${CARGO_WEB_URL}" | gzip -d > ~/.cargo/bin/cargo-web
-          chmod +x ~/.cargo/bin/cargo-web
-      - run: cd test_suite && cargo web test --target=asmjs-unknown-emscripten --nodejs
-        continue-on-error: true
-      - run: cd test_suite && cargo web test --target=wasm32-unknown-emscripten --nodejs
-        continue-on-error: true
-
   clippy:
     name: Clippy
     runs-on: ubuntu-latest
@@ -207,4 +164,4 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: dtolnay/install@cargo-outdated
-      - run: cargo outdated --workspace --exclude macrotest,prettyplease --exit-code 1
+      - run: cargo outdated --workspace --exit-code 1

LICENSE-APACHE

@@ -174,28 +174,3 @@ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
    of your accepting any such warranty or additional liability.
 
 END OF TERMS AND CONDITIONS
-
-APPENDIX: How to apply the Apache License to your work.
-
-   To apply the Apache License to your work, attach the following
-   boilerplate notice, with the fields enclosed by brackets "[]"
-   replaced with your own identifying information. (Don't include
-   the brackets!)  The text should be enclosed in the appropriate
-   comment syntax for the file format. We also recommend that a
-   file or class name and description of purpose be included on the
-   same "printed page" as the copyright notice for easier
-   identification within third-party archives.
-
-Copyright [yyyy] [name of copyright owner]
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-	http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.

README.md

@@ -1,12 +1,12 @@
-# Serde   [![Build Status]][actions] [![Latest Version]][crates.io] [![serde: rustc 1.13+]][Rust 1.13] [![serde_derive: rustc 1.31+]][Rust 1.31]
+# Serde   [![Build Status]][actions] [![Latest Version]][crates.io] [![serde: rustc 1.19+]][Rust 1.19] [![serde_derive: rustc 1.31+]][Rust 1.31]
 
 [Build Status]: https://img.shields.io/github/actions/workflow/status/serde-rs/serde/ci.yml?branch=master
 [actions]: https://github.com/serde-rs/serde/actions?query=branch%3Amaster
 [Latest Version]: https://img.shields.io/crates/v/serde.svg
 [crates.io]: https://crates.io/crates/serde
-[serde: rustc 1.13+]: https://img.shields.io/badge/serde-rustc_1.13+-lightgray.svg
+[serde: rustc 1.19+]: https://img.shields.io/badge/serde-rustc_1.19+-lightgray.svg
 [serde_derive: rustc 1.31+]: https://img.shields.io/badge/serde_derive-rustc_1.31+-lightgray.svg
-[Rust 1.13]: https://blog.rust-lang.org/2016/11/10/Rust-1.13.html
+[Rust 1.19]: https://blog.rust-lang.org/2017/07/20/Rust-1.19.html
 [Rust 1.31]: https://blog.rust-lang.org/2018/12/06/Rust-1.31-and-rust-2018.html
 
 **Serde is a framework for *ser*ializing and *de*serializing Rust data structures efficiently and generically.**

serde/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde"
-version = "1.0.152" # remember to update html_root_url and serde_derive dependency
+version = "1.0.154" # 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"]
@@ -12,10 +12,10 @@ keywords = ["serde", "serialization", "no_std"]
 license = "MIT OR Apache-2.0"
 readme = "crates-io.md"
 repository = "https://github.com/serde-rs/serde"
-rust-version = "1.13"
+rust-version = "1.19"
 
 [dependencies]
-serde_derive = { version = "=1.0.152", optional = true, path = "../serde_derive" }
+serde_derive = { version = "=1.0.154", optional = true, path = "../serde_derive" }
 
 [dev-dependencies]
 serde_derive = { version = "1.0", path = "../serde_derive" }

serde/src/lib.rs

@@ -45,6 +45,8 @@
 //!   definition.
 //! - [JSON5], a superset of JSON including some productions from ES5.
 //! - [URL] query strings, in the x-www-form-urlencoded format.
+//! - [Starlark], the format used for describing build targets by the Bazel and
+//!   Buck build systems. *(serialization only)*
 //! - [Envy], a way to deserialize environment variables into Rust structs.
 //!   *(deserialization only)*
 //! - [Envy Store], a way to deserialize [AWS Parameter Store] parameters into
@@ -74,6 +76,7 @@
 //! [Avro]: https://docs.rs/apache-avro
 //! [JSON5]: https://github.com/callum-oakley/json5-rs
 //! [URL]: https://docs.rs/serde_qs
+//! [Starlark]: https://github.com/dtolnay/serde-starlark
 //! [Envy]: https://github.com/softprops/envy
 //! [Envy Store]: https://github.com/softprops/envy-store
 //! [Cargo]: https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -90,7 +93,7 @@
 ////////////////////////////////////////////////////////////////////////////////
 
 // Serde types in rustdoc of other crates get linked to here.
-#![doc(html_root_url = "https://docs.rs/serde/1.0.152")]
+#![doc(html_root_url = "https://docs.rs/serde/1.0.154")]
 // 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
@@ -127,6 +130,7 @@
         derive_partial_eq_without_eq,
         enum_glob_use,
         explicit_auto_deref,
+        let_underscore_untyped,
         map_err_ignore,
         new_without_default,
         result_unit_err,

serde_derive/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde_derive"
-version = "1.0.152" # remember to update html_root_url
+version = "1.0.154" # remember to update html_root_url
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
 categories = ["no-std"]
 description = "Macros 1.1 implementation of #[derive(Serialize, Deserialize)]"

serde_derive/src/de.rs

@@ -954,6 +954,7 @@ fn deserialize_struct(
             lifetime: _serde::__private::PhantomData,
         }
     };
+    let need_seed = deserializer.is_none();
     let dispatch = if let Some(deserializer) = deserializer {
         quote! {
             _serde::Deserializer::deserialize_any(#deserializer, #visitor_expr)
@@ -999,14 +1000,14 @@ fn deserialize_struct(
         _ => None,
     };
 
-    let visitor_seed = if is_enum && cattrs.has_flatten() {
+    let visitor_seed = if need_seed && is_enum && cattrs.has_flatten() {
         Some(quote! {
             impl #de_impl_generics _serde::de::DeserializeSeed<#delife> for __Visitor #de_ty_generics #where_clause {
                 type Value = #this_type #ty_generics;
 
                 fn deserialize<__D>(self, __deserializer: __D) -> _serde::__private::Result<Self::Value, __D::Error>
                 where
-                    __D: _serde::Deserializer<'de>,
+                    __D: _serde::Deserializer<#delife>,
                 {
                     _serde::Deserializer::deserialize_map(__deserializer, self)
                 }
@@ -1256,7 +1257,7 @@ fn deserialize_externally_tagged_enum(
         // This is an empty enum like `enum Impossible {}` or an enum in which
         // all variants have `#[serde(skip_deserializing)]`.
         quote! {
-            // FIXME: Once we drop support for Rust 1.15:
+            // FIXME: Once feature(exhaustive_patterns) is stable:
             // let _serde::__private::Err(__err) = _serde::de::EnumAccess::variant::<__Field>(__data);
             // _serde::__private::Err(__err)
             _serde::__private::Result::map(
@@ -2400,7 +2401,10 @@ fn deserialize_struct_as_struct_visitor(
         .collect();
 
     let fields_stmt = {
-        let field_names = field_names_idents.iter().map(|(name, _, _)| name);
+        let field_names = field_names_idents
+            .iter()
+            .flat_map(|(_, _, aliases)| aliases);
+
         quote_block! {
             const FIELDS: &'static [&'static str] = &[ #(#field_names),* ];
         }
@@ -2535,7 +2539,7 @@ fn deserialize_map(
     let all_skipped = fields.iter().all(|field| field.attrs.skip_deserializing());
     let match_keys = if cattrs.deny_unknown_fields() && all_skipped {
         quote! {
-            // FIXME: Once we drop support for Rust 1.15:
+            // FIXME: Once feature(exhaustive_patterns) is stable:
             // let _serde::__private::None::<__Field> = try!(_serde::de::MapAccess::next_key(&mut __map));
             _serde::__private::Option::map(
                 try!(_serde::de::MapAccess::next_key::<__Field>(&mut __map)),
@@ -2768,7 +2772,7 @@ fn deserialize_map_in_place(
 
     let match_keys = if cattrs.deny_unknown_fields() && all_skipped {
         quote! {
-            // FIXME: Once we drop support for Rust 1.15:
+            // FIXME: Once feature(exhaustive_patterns) is stable:
             // let _serde::__private::None::<__Field> = try!(_serde::de::MapAccess::next_key(&mut __map));
             _serde::__private::Option::map(
                 try!(_serde::de::MapAccess::next_key::<__Field>(&mut __map)),

serde_derive/src/dummy.rs

@@ -39,10 +39,6 @@ pub fn wrap_in_const(
     }
 }
 
-#[allow(deprecated)]
 fn unraw(ident: &Ident) -> String {
-    // str::trim_start_matches was added in 1.30, trim_left_matches deprecated
+    ident.to_string().trim_start_matches("r#").to_owned()
-    // in 1.33. We currently support rustc back to 1.15 so we need to continue
-    // to use the deprecated one.
-    ident.to_string().trim_left_matches("r#").to_owned()
 }

serde_derive/src/internals/attr.rs

@@ -141,12 +141,8 @@ pub struct Name {
     deserialize_aliases: Vec<String>,
 }
 
-#[allow(deprecated)]
 fn unraw(ident: &Ident) -> String {
-    // str::trim_start_matches was added in 1.30, trim_left_matches deprecated
+    ident.to_string().trim_start_matches("r#").to_owned()
-    // in 1.33. We currently support rustc back to 1.15 so we need to continue
-    // to use the deprecated one.
-    ident.to_string().trim_left_matches("r#").to_owned()
 }
 
 impl Name {

serde_derive/src/lib.rs

@@ -13,7 +13,7 @@
 //!
 //! [https://serde.rs/derive.html]: https://serde.rs/derive.html
 
-#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.152")]
+#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.154")]
 #![allow(unknown_lints, bare_trait_objects)]
 // Ignored clippy lints
 #![allow(
@@ -43,6 +43,7 @@
     clippy::enum_glob_use,
     clippy::indexing_slicing,
     clippy::items_after_statements,
+    clippy::let_underscore_untyped,
     clippy::manual_assert,
     clippy::map_err_ignore,
     clippy::match_same_arms,

serde_derive_internals/lib.rs

@@ -22,6 +22,7 @@
     clippy::doc_markdown,
     clippy::enum_glob_use,
     clippy::items_after_statements,
+    clippy::let_underscore_untyped,
     clippy::manual_assert,
     clippy::match_same_arms,
     // clippy bug: https://github.com/rust-lang/rust-clippy/issues/6984

serde_test/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "serde_test"
-version = "1.0.152" # remember to update html_root_url
+version = "1.0.154" # 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"]
@@ -12,7 +12,7 @@ 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 = "1.13"
+rust-version = "1.19"
 
 [dependencies]
 serde = { version = "1.0.60", path = "../serde" }

serde_test/src/lib.rs

@@ -140,7 +140,7 @@
 //! # }
 //! ```
 
-#![doc(html_root_url = "https://docs.rs/serde_test/1.0.152")]
+#![doc(html_root_url = "https://docs.rs/serde_test/1.0.154")]
 #![cfg_attr(feature = "cargo-clippy", allow(renamed_and_removed_lints))]
 // Ignored clippy lints
 #![cfg_attr(feature = "cargo-clippy", allow(float_cmp, needless_doctest_main))]

test_suite/Cargo.toml

@@ -2,24 +2,17 @@
 name = "serde_test_suite"
 version = "0.0.0"
 authors = ["Erick Tryzelaar <erick.tryzelaar@gmail.com>", "David Tolnay <dtolnay@gmail.com>"]
-build = "build.rs"
 edition = "2018"
 publish = false
 
 [features]
-expandtest = []
 unstable = ["serde/unstable"]
 
 [dependencies]
 serde = { path = "../serde" }
 
-[build-dependencies]
-toolchain_find = "0.2"
-
 [dev-dependencies]
 fnv = "1.0"
-macrotest = "=1.0.9"
-prettyplease = "=0.1.14"
 rustversion = "1.0"
 serde = { path = "../serde", features = ["rc", "derive"] }
 serde_derive = { path = "../serde_derive", features = ["deserialize_in_place"] }

test_suite/build.rs

@@ -1,27 +0,0 @@
-use std::process::{Command, ExitStatus, Stdio};
-
-fn has_cargo_expand() -> bool {
-    let cargo_expand = if cfg!(windows) {
-        "cargo-expand.exe"
-    } else {
-        "cargo-expand"
-    };
-
-    Command::new(cargo_expand)
-        .arg("--version")
-        .stdin(Stdio::null())
-        .stdout(Stdio::null())
-        .stderr(Stdio::null())
-        .status()
-        .as_ref()
-        .map(ExitStatus::success)
-        .unwrap_or(false)
-}
-
-fn main() {
-    println!("cargo:rerun-if-changed=build.rs");
-
-    if cfg!(feature = "expandtest") && has_cargo_expand() {
-        println!("cargo:rustc-cfg=expandtest");
-    }
-}

test_suite/tests/expand/de_enum.rs

@@ -1,13 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Serialize, Deserialize)]
-enum DeEnum<B, C, D> {
-    Unit,
-    Seq(i8, B, C, D),
-    Map { a: i8, b: B, c: C, d: D },
-
-    // Make sure we can support more than one variant.
-    _Unit2,
-    _Seq2(i8, B, C, D),
-    _Map2 { a: i8, b: B, c: C, d: D },
-}

test_suite/tests/expand/default_ty_param.expanded.rs

@@ -1,448 +0,0 @@
-use serde::{Deserialize, Serialize};
-trait AssociatedType {
-    type X;
-}
-impl AssociatedType for i32 {
-    type X = i32;
-}
-struct DefaultTyParam<T: AssociatedType<X = i32> = i32> {
-    phantom: PhantomData<T>,
-}
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<T: AssociatedType<X = i32>> _serde::Serialize for DefaultTyParam<T> {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            let mut __serde_state = match _serde::Serializer::serialize_struct(
-                __serializer,
-                "DefaultTyParam",
-                false as usize + 1,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            match _serde::ser::SerializeStruct::serialize_field(
-                &mut __serde_state,
-                "phantom",
-                &self.phantom,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            _serde::ser::SerializeStruct::end(__serde_state)
-        }
-    }
-};
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de, T: AssociatedType<X = i32>> _serde::Deserialize<'de>
-    for DefaultTyParam<T> {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            #[allow(non_camel_case_types)]
-            enum __Field {
-                __field0,
-                __ignore,
-            }
-            struct __FieldVisitor;
-            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                type Value = __Field;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "field identifier",
-                    )
-                }
-                fn visit_u64<__E>(
-                    self,
-                    __value: u64,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        0u64 => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_str<__E>(
-                    self,
-                    __value: &str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "phantom" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_bytes<__E>(
-                    self,
-                    __value: &[u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"phantom" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-            }
-            impl<'de> _serde::Deserialize<'de> for __Field {
-                #[inline]
-                fn deserialize<__D>(
-                    __deserializer: __D,
-                ) -> _serde::__private::Result<Self, __D::Error>
-                where
-                    __D: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserializer::deserialize_identifier(
-                        __deserializer,
-                        __FieldVisitor,
-                    )
-                }
-            }
-            struct __Visitor<'de, T: AssociatedType<X = i32>> {
-                marker: _serde::__private::PhantomData<DefaultTyParam<T>>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, T: AssociatedType<X = i32>> _serde::de::Visitor<'de>
-            for __Visitor<'de, T> {
-                type Value = DefaultTyParam<T>;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "struct DefaultTyParam",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                        PhantomData<T>,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    0usize,
-                                    &"struct DefaultTyParam with 1 element",
-                                ),
-                            );
-                        }
-                    };
-                    _serde::__private::Ok(DefaultTyParam {
-                        phantom: __field0,
-                    })
-                }
-                #[inline]
-                fn visit_map<__A>(
-                    self,
-                    mut __map: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::MapAccess<'de>,
-                {
-                    let mut __field0: _serde::__private::Option<PhantomData<T>> = _serde::__private::None;
-                    while let _serde::__private::Some(__key)
-                        = match _serde::de::MapAccess::next_key::<__Field>(&mut __map) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        match __key {
-                            __Field::__field0 => {
-                                if _serde::__private::Option::is_some(&__field0) {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field(
-                                            "phantom",
-                                        ),
-                                    );
-                                }
-                                __field0 = _serde::__private::Some(
-                                    match _serde::de::MapAccess::next_value::<
-                                        PhantomData<T>,
-                                    >(&mut __map) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    },
-                                );
-                            }
-                            _ => {
-                                let _ = match _serde::de::MapAccess::next_value::<
-                                    _serde::de::IgnoredAny,
-                                >(&mut __map) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                            }
-                        }
-                    }
-                    let __field0 = match __field0 {
-                        _serde::__private::Some(__field0) => __field0,
-                        _serde::__private::None => {
-                            match _serde::__private::de::missing_field("phantom") {
-                                _serde::__private::Ok(__val) => __val,
-                                _serde::__private::Err(__err) => {
-                                    return _serde::__private::Err(__err);
-                                }
-                            }
-                        }
-                    };
-                    _serde::__private::Ok(DefaultTyParam {
-                        phantom: __field0,
-                    })
-                }
-            }
-            const FIELDS: &'static [&'static str] = &["phantom"];
-            _serde::Deserializer::deserialize_struct(
-                __deserializer,
-                "DefaultTyParam",
-                FIELDS,
-                __Visitor {
-                    marker: _serde::__private::PhantomData::<DefaultTyParam<T>>,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-        fn deserialize_in_place<__D>(
-            __deserializer: __D,
-            __place: &mut Self,
-        ) -> _serde::__private::Result<(), __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            #[allow(non_camel_case_types)]
-            enum __Field {
-                __field0,
-                __ignore,
-            }
-            struct __FieldVisitor;
-            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                type Value = __Field;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "field identifier",
-                    )
-                }
-                fn visit_u64<__E>(
-                    self,
-                    __value: u64,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        0u64 => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_str<__E>(
-                    self,
-                    __value: &str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "phantom" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_bytes<__E>(
-                    self,
-                    __value: &[u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"phantom" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-            }
-            impl<'de> _serde::Deserialize<'de> for __Field {
-                #[inline]
-                fn deserialize<__D>(
-                    __deserializer: __D,
-                ) -> _serde::__private::Result<Self, __D::Error>
-                where
-                    __D: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserializer::deserialize_identifier(
-                        __deserializer,
-                        __FieldVisitor,
-                    )
-                }
-            }
-            struct __Visitor<'de, 'place, T: AssociatedType<X = i32> + 'place> {
-                place: &'place mut DefaultTyParam<T>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<
-                'de,
-                'place,
-                T: AssociatedType<X = i32> + 'place,
-            > _serde::de::Visitor<'de> for __Visitor<'de, 'place, T> {
-                type Value = ();
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "struct DefaultTyParam",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.phantom),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                0usize,
-                                &"struct DefaultTyParam with 1 element",
-                            ),
-                        );
-                    }
-                    _serde::__private::Ok(())
-                }
-                #[inline]
-                fn visit_map<__A>(
-                    self,
-                    mut __map: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::MapAccess<'de>,
-                {
-                    let mut __field0: bool = false;
-                    while let _serde::__private::Some(__key)
-                        = match _serde::de::MapAccess::next_key::<__Field>(&mut __map) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        match __key {
-                            __Field::__field0 => {
-                                if __field0 {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field(
-                                            "phantom",
-                                        ),
-                                    );
-                                }
-                                match _serde::de::MapAccess::next_value_seed(
-                                    &mut __map,
-                                    _serde::__private::de::InPlaceSeed(&mut self.place.phantom),
-                                ) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                                __field0 = true;
-                            }
-                            _ => {
-                                let _ = match _serde::de::MapAccess::next_value::<
-                                    _serde::de::IgnoredAny,
-                                >(&mut __map) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                            }
-                        }
-                    }
-                    if !__field0 {
-                        self
-                            .place
-                            .phantom = match _serde::__private::de::missing_field(
-                            "phantom",
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        };
-                    }
-                    _serde::__private::Ok(())
-                }
-            }
-            const FIELDS: &'static [&'static str] = &["phantom"];
-            _serde::Deserializer::deserialize_struct(
-                __deserializer,
-                "DefaultTyParam",
-                FIELDS,
-                __Visitor {
-                    place: __place,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-    }
-};

test_suite/tests/expand/default_ty_param.rs

@@ -1,14 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-trait AssociatedType {
-    type X;
-}
-
-impl AssociatedType for i32 {
-    type X = i32;
-}
-
-#[derive(Serialize, Deserialize)]
-struct DefaultTyParam<T: AssociatedType<X = i32> = i32> {
-    phantom: PhantomData<T>,
-}

test_suite/tests/expand/generic_enum.expanded.rs

@@ -1,621 +0,0 @@
-use serde::{Deserialize, Serialize};
-pub enum GenericEnum<T, U> {
-    Unit,
-    NewType(T),
-    Seq(T, U),
-    Map { x: T, y: U },
-}
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<T, U> _serde::Serialize for GenericEnum<T, U>
-    where
-        T: _serde::Serialize,
-        U: _serde::Serialize,
-    {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            match *self {
-                GenericEnum::Unit => {
-                    _serde::Serializer::serialize_unit_variant(
-                        __serializer,
-                        "GenericEnum",
-                        0u32,
-                        "Unit",
-                    )
-                }
-                GenericEnum::NewType(ref __field0) => {
-                    _serde::Serializer::serialize_newtype_variant(
-                        __serializer,
-                        "GenericEnum",
-                        1u32,
-                        "NewType",
-                        __field0,
-                    )
-                }
-                GenericEnum::Seq(ref __field0, ref __field1) => {
-                    let mut __serde_state = match _serde::Serializer::serialize_tuple_variant(
-                        __serializer,
-                        "GenericEnum",
-                        2u32,
-                        "Seq",
-                        0 + 1 + 1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field0,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    _serde::ser::SerializeTupleVariant::end(__serde_state)
-                }
-                GenericEnum::Map { ref x, ref y } => {
-                    let mut __serde_state = match _serde::Serializer::serialize_struct_variant(
-                        __serializer,
-                        "GenericEnum",
-                        3u32,
-                        "Map",
-                        0 + 1 + 1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "x",
-                        x,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "y",
-                        y,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    _serde::ser::SerializeStructVariant::end(__serde_state)
-                }
-            }
-        }
-    }
-};
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de, T, U> _serde::Deserialize<'de> for GenericEnum<T, U>
-    where
-        T: _serde::Deserialize<'de>,
-        U: _serde::Deserialize<'de>,
-    {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            #[allow(non_camel_case_types)]
-            enum __Field {
-                __field0,
-                __field1,
-                __field2,
-                __field3,
-            }
-            struct __FieldVisitor;
-            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                type Value = __Field;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "variant identifier",
-                    )
-                }
-                fn visit_u64<__E>(
-                    self,
-                    __value: u64,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        0u64 => _serde::__private::Ok(__Field::__field0),
-                        1u64 => _serde::__private::Ok(__Field::__field1),
-                        2u64 => _serde::__private::Ok(__Field::__field2),
-                        3u64 => _serde::__private::Ok(__Field::__field3),
-                        _ => {
-                            _serde::__private::Err(
-                                _serde::de::Error::invalid_value(
-                                    _serde::de::Unexpected::Unsigned(__value),
-                                    &"variant index 0 <= i < 4",
-                                ),
-                            )
-                        }
-                    }
-                }
-                fn visit_str<__E>(
-                    self,
-                    __value: &str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "Unit" => _serde::__private::Ok(__Field::__field0),
-                        "NewType" => _serde::__private::Ok(__Field::__field1),
-                        "Seq" => _serde::__private::Ok(__Field::__field2),
-                        "Map" => _serde::__private::Ok(__Field::__field3),
-                        _ => {
-                            _serde::__private::Err(
-                                _serde::de::Error::unknown_variant(__value, VARIANTS),
-                            )
-                        }
-                    }
-                }
-                fn visit_bytes<__E>(
-                    self,
-                    __value: &[u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"Unit" => _serde::__private::Ok(__Field::__field0),
-                        b"NewType" => _serde::__private::Ok(__Field::__field1),
-                        b"Seq" => _serde::__private::Ok(__Field::__field2),
-                        b"Map" => _serde::__private::Ok(__Field::__field3),
-                        _ => {
-                            let __value = &_serde::__private::from_utf8_lossy(__value);
-                            _serde::__private::Err(
-                                _serde::de::Error::unknown_variant(__value, VARIANTS),
-                            )
-                        }
-                    }
-                }
-            }
-            impl<'de> _serde::Deserialize<'de> for __Field {
-                #[inline]
-                fn deserialize<__D>(
-                    __deserializer: __D,
-                ) -> _serde::__private::Result<Self, __D::Error>
-                where
-                    __D: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserializer::deserialize_identifier(
-                        __deserializer,
-                        __FieldVisitor,
-                    )
-                }
-            }
-            struct __Visitor<'de, T, U>
-            where
-                T: _serde::Deserialize<'de>,
-                U: _serde::Deserialize<'de>,
-            {
-                marker: _serde::__private::PhantomData<GenericEnum<T, U>>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, T, U> _serde::de::Visitor<'de> for __Visitor<'de, T, U>
-            where
-                T: _serde::Deserialize<'de>,
-                U: _serde::Deserialize<'de>,
-            {
-                type Value = GenericEnum<T, U>;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "enum GenericEnum",
-                    )
-                }
-                fn visit_enum<__A>(
-                    self,
-                    __data: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::EnumAccess<'de>,
-                {
-                    match match _serde::de::EnumAccess::variant(__data) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        (__Field::__field0, __variant) => {
-                            match _serde::de::VariantAccess::unit_variant(__variant) {
-                                _serde::__private::Ok(__val) => __val,
-                                _serde::__private::Err(__err) => {
-                                    return _serde::__private::Err(__err);
-                                }
-                            };
-                            _serde::__private::Ok(GenericEnum::Unit)
-                        }
-                        (__Field::__field1, __variant) => {
-                            _serde::__private::Result::map(
-                                _serde::de::VariantAccess::newtype_variant::<T>(__variant),
-                                GenericEnum::NewType,
-                            )
-                        }
-                        (__Field::__field2, __variant) => {
-                            struct __Visitor<'de, T, U>
-                            where
-                                T: _serde::Deserialize<'de>,
-                                U: _serde::Deserialize<'de>,
-                            {
-                                marker: _serde::__private::PhantomData<GenericEnum<T, U>>,
-                                lifetime: _serde::__private::PhantomData<&'de ()>,
-                            }
-                            impl<'de, T, U> _serde::de::Visitor<'de>
-                            for __Visitor<'de, T, U>
-                            where
-                                T: _serde::Deserialize<'de>,
-                                U: _serde::Deserialize<'de>,
-                            {
-                                type Value = GenericEnum<T, U>;
-                                fn expecting(
-                                    &self,
-                                    __formatter: &mut _serde::__private::Formatter,
-                                ) -> _serde::__private::fmt::Result {
-                                    _serde::__private::Formatter::write_str(
-                                        __formatter,
-                                        "tuple variant GenericEnum::Seq",
-                                    )
-                                }
-                                #[inline]
-                                fn visit_seq<__A>(
-                                    self,
-                                    mut __seq: __A,
-                                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                                where
-                                    __A: _serde::de::SeqAccess<'de>,
-                                {
-                                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                                        T,
-                                    >(&mut __seq) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    } {
-                                        _serde::__private::Some(__value) => __value,
-                                        _serde::__private::None => {
-                                            return _serde::__private::Err(
-                                                _serde::de::Error::invalid_length(
-                                                    0usize,
-                                                    &"tuple variant GenericEnum::Seq with 2 elements",
-                                                ),
-                                            );
-                                        }
-                                    };
-                                    let __field1 = match match _serde::de::SeqAccess::next_element::<
-                                        U,
-                                    >(&mut __seq) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    } {
-                                        _serde::__private::Some(__value) => __value,
-                                        _serde::__private::None => {
-                                            return _serde::__private::Err(
-                                                _serde::de::Error::invalid_length(
-                                                    1usize,
-                                                    &"tuple variant GenericEnum::Seq with 2 elements",
-                                                ),
-                                            );
-                                        }
-                                    };
-                                    _serde::__private::Ok(GenericEnum::Seq(__field0, __field1))
-                                }
-                            }
-                            _serde::de::VariantAccess::tuple_variant(
-                                __variant,
-                                2usize,
-                                __Visitor {
-                                    marker: _serde::__private::PhantomData::<GenericEnum<T, U>>,
-                                    lifetime: _serde::__private::PhantomData,
-                                },
-                            )
-                        }
-                        (__Field::__field3, __variant) => {
-                            #[allow(non_camel_case_types)]
-                            enum __Field {
-                                __field0,
-                                __field1,
-                                __ignore,
-                            }
-                            struct __FieldVisitor;
-                            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                                type Value = __Field;
-                                fn expecting(
-                                    &self,
-                                    __formatter: &mut _serde::__private::Formatter,
-                                ) -> _serde::__private::fmt::Result {
-                                    _serde::__private::Formatter::write_str(
-                                        __formatter,
-                                        "field identifier",
-                                    )
-                                }
-                                fn visit_u64<__E>(
-                                    self,
-                                    __value: u64,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        0u64 => _serde::__private::Ok(__Field::__field0),
-                                        1u64 => _serde::__private::Ok(__Field::__field1),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
-                                fn visit_str<__E>(
-                                    self,
-                                    __value: &str,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        "x" => _serde::__private::Ok(__Field::__field0),
-                                        "y" => _serde::__private::Ok(__Field::__field1),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
-                                fn visit_bytes<__E>(
-                                    self,
-                                    __value: &[u8],
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        b"x" => _serde::__private::Ok(__Field::__field0),
-                                        b"y" => _serde::__private::Ok(__Field::__field1),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
-                            }
-                            impl<'de> _serde::Deserialize<'de> for __Field {
-                                #[inline]
-                                fn deserialize<__D>(
-                                    __deserializer: __D,
-                                ) -> _serde::__private::Result<Self, __D::Error>
-                                where
-                                    __D: _serde::Deserializer<'de>,
-                                {
-                                    _serde::Deserializer::deserialize_identifier(
-                                        __deserializer,
-                                        __FieldVisitor,
-                                    )
-                                }
-                            }
-                            struct __Visitor<'de, T, U>
-                            where
-                                T: _serde::Deserialize<'de>,
-                                U: _serde::Deserialize<'de>,
-                            {
-                                marker: _serde::__private::PhantomData<GenericEnum<T, U>>,
-                                lifetime: _serde::__private::PhantomData<&'de ()>,
-                            }
-                            impl<'de, T, U> _serde::de::Visitor<'de>
-                            for __Visitor<'de, T, U>
-                            where
-                                T: _serde::Deserialize<'de>,
-                                U: _serde::Deserialize<'de>,
-                            {
-                                type Value = GenericEnum<T, U>;
-                                fn expecting(
-                                    &self,
-                                    __formatter: &mut _serde::__private::Formatter,
-                                ) -> _serde::__private::fmt::Result {
-                                    _serde::__private::Formatter::write_str(
-                                        __formatter,
-                                        "struct variant GenericEnum::Map",
-                                    )
-                                }
-                                #[inline]
-                                fn visit_seq<__A>(
-                                    self,
-                                    mut __seq: __A,
-                                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                                where
-                                    __A: _serde::de::SeqAccess<'de>,
-                                {
-                                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                                        T,
-                                    >(&mut __seq) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    } {
-                                        _serde::__private::Some(__value) => __value,
-                                        _serde::__private::None => {
-                                            return _serde::__private::Err(
-                                                _serde::de::Error::invalid_length(
-                                                    0usize,
-                                                    &"struct variant GenericEnum::Map with 2 elements",
-                                                ),
-                                            );
-                                        }
-                                    };
-                                    let __field1 = match match _serde::de::SeqAccess::next_element::<
-                                        U,
-                                    >(&mut __seq) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    } {
-                                        _serde::__private::Some(__value) => __value,
-                                        _serde::__private::None => {
-                                            return _serde::__private::Err(
-                                                _serde::de::Error::invalid_length(
-                                                    1usize,
-                                                    &"struct variant GenericEnum::Map with 2 elements",
-                                                ),
-                                            );
-                                        }
-                                    };
-                                    _serde::__private::Ok(GenericEnum::Map {
-                                        x: __field0,
-                                        y: __field1,
-                                    })
-                                }
-                                #[inline]
-                                fn visit_map<__A>(
-                                    self,
-                                    mut __map: __A,
-                                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                                where
-                                    __A: _serde::de::MapAccess<'de>,
-                                {
-                                    let mut __field0: _serde::__private::Option<T> = _serde::__private::None;
-                                    let mut __field1: _serde::__private::Option<U> = _serde::__private::None;
-                                    while let _serde::__private::Some(__key)
-                                        = match _serde::de::MapAccess::next_key::<
-                                            __Field,
-                                        >(&mut __map) {
-                                            _serde::__private::Ok(__val) => __val,
-                                            _serde::__private::Err(__err) => {
-                                                return _serde::__private::Err(__err);
-                                            }
-                                        } {
-                                        match __key {
-                                            __Field::__field0 => {
-                                                if _serde::__private::Option::is_some(&__field0) {
-                                                    return _serde::__private::Err(
-                                                        <__A::Error as _serde::de::Error>::duplicate_field("x"),
-                                                    );
-                                                }
-                                                __field0 = _serde::__private::Some(
-                                                    match _serde::de::MapAccess::next_value::<T>(&mut __map) {
-                                                        _serde::__private::Ok(__val) => __val,
-                                                        _serde::__private::Err(__err) => {
-                                                            return _serde::__private::Err(__err);
-                                                        }
-                                                    },
-                                                );
-                                            }
-                                            __Field::__field1 => {
-                                                if _serde::__private::Option::is_some(&__field1) {
-                                                    return _serde::__private::Err(
-                                                        <__A::Error as _serde::de::Error>::duplicate_field("y"),
-                                                    );
-                                                }
-                                                __field1 = _serde::__private::Some(
-                                                    match _serde::de::MapAccess::next_value::<U>(&mut __map) {
-                                                        _serde::__private::Ok(__val) => __val,
-                                                        _serde::__private::Err(__err) => {
-                                                            return _serde::__private::Err(__err);
-                                                        }
-                                                    },
-                                                );
-                                            }
-                                            _ => {
-                                                let _ = match _serde::de::MapAccess::next_value::<
-                                                    _serde::de::IgnoredAny,
-                                                >(&mut __map) {
-                                                    _serde::__private::Ok(__val) => __val,
-                                                    _serde::__private::Err(__err) => {
-                                                        return _serde::__private::Err(__err);
-                                                    }
-                                                };
-                                            }
-                                        }
-                                    }
-                                    let __field0 = match __field0 {
-                                        _serde::__private::Some(__field0) => __field0,
-                                        _serde::__private::None => {
-                                            match _serde::__private::de::missing_field("x") {
-                                                _serde::__private::Ok(__val) => __val,
-                                                _serde::__private::Err(__err) => {
-                                                    return _serde::__private::Err(__err);
-                                                }
-                                            }
-                                        }
-                                    };
-                                    let __field1 = match __field1 {
-                                        _serde::__private::Some(__field1) => __field1,
-                                        _serde::__private::None => {
-                                            match _serde::__private::de::missing_field("y") {
-                                                _serde::__private::Ok(__val) => __val,
-                                                _serde::__private::Err(__err) => {
-                                                    return _serde::__private::Err(__err);
-                                                }
-                                            }
-                                        }
-                                    };
-                                    _serde::__private::Ok(GenericEnum::Map {
-                                        x: __field0,
-                                        y: __field1,
-                                    })
-                                }
-                            }
-                            const FIELDS: &'static [&'static str] = &["x", "y"];
-                            _serde::de::VariantAccess::struct_variant(
-                                __variant,
-                                FIELDS,
-                                __Visitor {
-                                    marker: _serde::__private::PhantomData::<GenericEnum<T, U>>,
-                                    lifetime: _serde::__private::PhantomData,
-                                },
-                            )
-                        }
-                    }
-                }
-            }
-            const VARIANTS: &'static [&'static str] = &["Unit", "NewType", "Seq", "Map"];
-            _serde::Deserializer::deserialize_enum(
-                __deserializer,
-                "GenericEnum",
-                VARIANTS,
-                __Visitor {
-                    marker: _serde::__private::PhantomData::<GenericEnum<T, U>>,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-    }
-};

test_suite/tests/expand/generic_enum.rs

@@ -1,9 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Serialize, Deserialize)]
-pub enum GenericEnum<T, U> {
-    Unit,
-    NewType(T),
-    Seq(T, U),
-    Map { x: T, y: U },
-}

test_suite/tests/expand/generic_struct.expanded.rs

@@ -1,640 +0,0 @@
-use serde::{Deserialize, Serialize};
-pub struct GenericStruct<T> {
-    x: T,
-}
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<T> _serde::Serialize for GenericStruct<T>
-    where
-        T: _serde::Serialize,
-    {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            let mut __serde_state = match _serde::Serializer::serialize_struct(
-                __serializer,
-                "GenericStruct",
-                false as usize + 1,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            match _serde::ser::SerializeStruct::serialize_field(
-                &mut __serde_state,
-                "x",
-                &self.x,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            _serde::ser::SerializeStruct::end(__serde_state)
-        }
-    }
-};
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de, T> _serde::Deserialize<'de> for GenericStruct<T>
-    where
-        T: _serde::Deserialize<'de>,
-    {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            #[allow(non_camel_case_types)]
-            enum __Field {
-                __field0,
-                __ignore,
-            }
-            struct __FieldVisitor;
-            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                type Value = __Field;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "field identifier",
-                    )
-                }
-                fn visit_u64<__E>(
-                    self,
-                    __value: u64,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        0u64 => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_str<__E>(
-                    self,
-                    __value: &str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "x" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_bytes<__E>(
-                    self,
-                    __value: &[u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"x" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-            }
-            impl<'de> _serde::Deserialize<'de> for __Field {
-                #[inline]
-                fn deserialize<__D>(
-                    __deserializer: __D,
-                ) -> _serde::__private::Result<Self, __D::Error>
-                where
-                    __D: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserializer::deserialize_identifier(
-                        __deserializer,
-                        __FieldVisitor,
-                    )
-                }
-            }
-            struct __Visitor<'de, T>
-            where
-                T: _serde::Deserialize<'de>,
-            {
-                marker: _serde::__private::PhantomData<GenericStruct<T>>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, T> _serde::de::Visitor<'de> for __Visitor<'de, T>
-            where
-                T: _serde::Deserialize<'de>,
-            {
-                type Value = GenericStruct<T>;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "struct GenericStruct",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                        T,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    0usize,
-                                    &"struct GenericStruct with 1 element",
-                                ),
-                            );
-                        }
-                    };
-                    _serde::__private::Ok(GenericStruct { x: __field0 })
-                }
-                #[inline]
-                fn visit_map<__A>(
-                    self,
-                    mut __map: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::MapAccess<'de>,
-                {
-                    let mut __field0: _serde::__private::Option<T> = _serde::__private::None;
-                    while let _serde::__private::Some(__key)
-                        = match _serde::de::MapAccess::next_key::<__Field>(&mut __map) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        match __key {
-                            __Field::__field0 => {
-                                if _serde::__private::Option::is_some(&__field0) {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field("x"),
-                                    );
-                                }
-                                __field0 = _serde::__private::Some(
-                                    match _serde::de::MapAccess::next_value::<T>(&mut __map) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    },
-                                );
-                            }
-                            _ => {
-                                let _ = match _serde::de::MapAccess::next_value::<
-                                    _serde::de::IgnoredAny,
-                                >(&mut __map) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                            }
-                        }
-                    }
-                    let __field0 = match __field0 {
-                        _serde::__private::Some(__field0) => __field0,
-                        _serde::__private::None => {
-                            match _serde::__private::de::missing_field("x") {
-                                _serde::__private::Ok(__val) => __val,
-                                _serde::__private::Err(__err) => {
-                                    return _serde::__private::Err(__err);
-                                }
-                            }
-                        }
-                    };
-                    _serde::__private::Ok(GenericStruct { x: __field0 })
-                }
-            }
-            const FIELDS: &'static [&'static str] = &["x"];
-            _serde::Deserializer::deserialize_struct(
-                __deserializer,
-                "GenericStruct",
-                FIELDS,
-                __Visitor {
-                    marker: _serde::__private::PhantomData::<GenericStruct<T>>,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-        fn deserialize_in_place<__D>(
-            __deserializer: __D,
-            __place: &mut Self,
-        ) -> _serde::__private::Result<(), __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            #[allow(non_camel_case_types)]
-            enum __Field {
-                __field0,
-                __ignore,
-            }
-            struct __FieldVisitor;
-            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                type Value = __Field;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "field identifier",
-                    )
-                }
-                fn visit_u64<__E>(
-                    self,
-                    __value: u64,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        0u64 => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_str<__E>(
-                    self,
-                    __value: &str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "x" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_bytes<__E>(
-                    self,
-                    __value: &[u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"x" => _serde::__private::Ok(__Field::__field0),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-            }
-            impl<'de> _serde::Deserialize<'de> for __Field {
-                #[inline]
-                fn deserialize<__D>(
-                    __deserializer: __D,
-                ) -> _serde::__private::Result<Self, __D::Error>
-                where
-                    __D: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserializer::deserialize_identifier(
-                        __deserializer,
-                        __FieldVisitor,
-                    )
-                }
-            }
-            struct __Visitor<'de, 'place, T: 'place>
-            where
-                T: _serde::Deserialize<'de>,
-            {
-                place: &'place mut GenericStruct<T>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, 'place, T: 'place> _serde::de::Visitor<'de>
-            for __Visitor<'de, 'place, T>
-            where
-                T: _serde::Deserialize<'de>,
-            {
-                type Value = ();
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "struct GenericStruct",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.x),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                0usize,
-                                &"struct GenericStruct with 1 element",
-                            ),
-                        );
-                    }
-                    _serde::__private::Ok(())
-                }
-                #[inline]
-                fn visit_map<__A>(
-                    self,
-                    mut __map: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::MapAccess<'de>,
-                {
-                    let mut __field0: bool = false;
-                    while let _serde::__private::Some(__key)
-                        = match _serde::de::MapAccess::next_key::<__Field>(&mut __map) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        match __key {
-                            __Field::__field0 => {
-                                if __field0 {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field("x"),
-                                    );
-                                }
-                                match _serde::de::MapAccess::next_value_seed(
-                                    &mut __map,
-                                    _serde::__private::de::InPlaceSeed(&mut self.place.x),
-                                ) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                                __field0 = true;
-                            }
-                            _ => {
-                                let _ = match _serde::de::MapAccess::next_value::<
-                                    _serde::de::IgnoredAny,
-                                >(&mut __map) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                            }
-                        }
-                    }
-                    if !__field0 {
-                        self
-                            .place
-                            .x = match _serde::__private::de::missing_field("x") {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        };
-                    }
-                    _serde::__private::Ok(())
-                }
-            }
-            const FIELDS: &'static [&'static str] = &["x"];
-            _serde::Deserializer::deserialize_struct(
-                __deserializer,
-                "GenericStruct",
-                FIELDS,
-                __Visitor {
-                    place: __place,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-    }
-};
-pub struct GenericNewTypeStruct<T>(T);
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<T> _serde::Serialize for GenericNewTypeStruct<T>
-    where
-        T: _serde::Serialize,
-    {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            _serde::Serializer::serialize_newtype_struct(
-                __serializer,
-                "GenericNewTypeStruct",
-                &self.0,
-            )
-        }
-    }
-};
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de, T> _serde::Deserialize<'de> for GenericNewTypeStruct<T>
-    where
-        T: _serde::Deserialize<'de>,
-    {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            struct __Visitor<'de, T>
-            where
-                T: _serde::Deserialize<'de>,
-            {
-                marker: _serde::__private::PhantomData<GenericNewTypeStruct<T>>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, T> _serde::de::Visitor<'de> for __Visitor<'de, T>
-            where
-                T: _serde::Deserialize<'de>,
-            {
-                type Value = GenericNewTypeStruct<T>;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "tuple struct GenericNewTypeStruct",
-                    )
-                }
-                #[inline]
-                fn visit_newtype_struct<__E>(
-                    self,
-                    __e: __E,
-                ) -> _serde::__private::Result<Self::Value, __E::Error>
-                where
-                    __E: _serde::Deserializer<'de>,
-                {
-                    let __field0: T = match <T as _serde::Deserialize>::deserialize(
-                        __e,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    _serde::__private::Ok(GenericNewTypeStruct(__field0))
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                        T,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    0usize,
-                                    &"tuple struct GenericNewTypeStruct with 1 element",
-                                ),
-                            );
-                        }
-                    };
-                    _serde::__private::Ok(GenericNewTypeStruct(__field0))
-                }
-            }
-            _serde::Deserializer::deserialize_newtype_struct(
-                __deserializer,
-                "GenericNewTypeStruct",
-                __Visitor {
-                    marker: _serde::__private::PhantomData::<GenericNewTypeStruct<T>>,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-        fn deserialize_in_place<__D>(
-            __deserializer: __D,
-            __place: &mut Self,
-        ) -> _serde::__private::Result<(), __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            struct __Visitor<'de, 'place, T: 'place>
-            where
-                T: _serde::Deserialize<'de>,
-            {
-                place: &'place mut GenericNewTypeStruct<T>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, 'place, T: 'place> _serde::de::Visitor<'de>
-            for __Visitor<'de, 'place, T>
-            where
-                T: _serde::Deserialize<'de>,
-            {
-                type Value = ();
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "tuple struct GenericNewTypeStruct",
-                    )
-                }
-                #[inline]
-                fn visit_newtype_struct<__E>(
-                    self,
-                    __e: __E,
-                ) -> _serde::__private::Result<Self::Value, __E::Error>
-                where
-                    __E: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserialize::deserialize_in_place(__e, &mut self.place.0)
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.0),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                0usize,
-                                &"tuple struct GenericNewTypeStruct with 1 element",
-                            ),
-                        );
-                    }
-                    _serde::__private::Ok(())
-                }
-            }
-            _serde::Deserializer::deserialize_newtype_struct(
-                __deserializer,
-                "GenericNewTypeStruct",
-                __Visitor {
-                    place: __place,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-    }
-};

test_suite/tests/expand/generic_struct.rs

@@ -1,9 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Serialize, Deserialize)]
-pub struct GenericStruct<T> {
-    x: T,
-}
-
-#[derive(Serialize, Deserialize)]
-pub struct GenericNewTypeStruct<T>(T);

test_suite/tests/expand/generic_tuple_struct.expanded.rs

@@ -1,187 +0,0 @@
-use serde::{Deserialize, Serialize};
-pub struct GenericTupleStruct<T, U>(T, U);
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de, T, U> _serde::Deserialize<'de> for GenericTupleStruct<T, U>
-    where
-        T: _serde::Deserialize<'de>,
-        U: _serde::Deserialize<'de>,
-    {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            struct __Visitor<'de, T, U>
-            where
-                T: _serde::Deserialize<'de>,
-                U: _serde::Deserialize<'de>,
-            {
-                marker: _serde::__private::PhantomData<GenericTupleStruct<T, U>>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, T, U> _serde::de::Visitor<'de> for __Visitor<'de, T, U>
-            where
-                T: _serde::Deserialize<'de>,
-                U: _serde::Deserialize<'de>,
-            {
-                type Value = GenericTupleStruct<T, U>;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "tuple struct GenericTupleStruct",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                        T,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    0usize,
-                                    &"tuple struct GenericTupleStruct with 2 elements",
-                                ),
-                            );
-                        }
-                    };
-                    let __field1 = match match _serde::de::SeqAccess::next_element::<
-                        U,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    1usize,
-                                    &"tuple struct GenericTupleStruct with 2 elements",
-                                ),
-                            );
-                        }
-                    };
-                    _serde::__private::Ok(GenericTupleStruct(__field0, __field1))
-                }
-            }
-            _serde::Deserializer::deserialize_tuple_struct(
-                __deserializer,
-                "GenericTupleStruct",
-                2usize,
-                __Visitor {
-                    marker: _serde::__private::PhantomData::<GenericTupleStruct<T, U>>,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-        fn deserialize_in_place<__D>(
-            __deserializer: __D,
-            __place: &mut Self,
-        ) -> _serde::__private::Result<(), __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            struct __Visitor<'de, 'place, T: 'place, U: 'place>
-            where
-                T: _serde::Deserialize<'de>,
-                U: _serde::Deserialize<'de>,
-            {
-                place: &'place mut GenericTupleStruct<T, U>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, 'place, T: 'place, U: 'place> _serde::de::Visitor<'de>
-            for __Visitor<'de, 'place, T, U>
-            where
-                T: _serde::Deserialize<'de>,
-                U: _serde::Deserialize<'de>,
-            {
-                type Value = ();
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "tuple struct GenericTupleStruct",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.0),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                0usize,
-                                &"tuple struct GenericTupleStruct with 2 elements",
-                            ),
-                        );
-                    }
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.1),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                1usize,
-                                &"tuple struct GenericTupleStruct with 2 elements",
-                            ),
-                        );
-                    }
-                    _serde::__private::Ok(())
-                }
-            }
-            _serde::Deserializer::deserialize_tuple_struct(
-                __deserializer,
-                "GenericTupleStruct",
-                2usize,
-                __Visitor {
-                    place: __place,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-    }
-};

test_suite/tests/expand/generic_tuple_struct.rs

@@ -1,4 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Deserialize)]
-pub struct GenericTupleStruct<T, U>(T, U);

test_suite/tests/expand/lifetimes.expanded.rs

@@ -1,643 +0,0 @@
-use serde::{Deserialize, Serialize};
-enum Lifetimes<'a> {
-    LifetimeSeq(&'a i32),
-    NoLifetimeSeq(i32),
-    LifetimeMap { a: &'a i32 },
-    NoLifetimeMap { a: i32 },
-}
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'a> _serde::Serialize for Lifetimes<'a> {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            match *self {
-                Lifetimes::LifetimeSeq(ref __field0) => {
-                    _serde::Serializer::serialize_newtype_variant(
-                        __serializer,
-                        "Lifetimes",
-                        0u32,
-                        "LifetimeSeq",
-                        __field0,
-                    )
-                }
-                Lifetimes::NoLifetimeSeq(ref __field0) => {
-                    _serde::Serializer::serialize_newtype_variant(
-                        __serializer,
-                        "Lifetimes",
-                        1u32,
-                        "NoLifetimeSeq",
-                        __field0,
-                    )
-                }
-                Lifetimes::LifetimeMap { ref a } => {
-                    let mut __serde_state = match _serde::Serializer::serialize_struct_variant(
-                        __serializer,
-                        "Lifetimes",
-                        2u32,
-                        "LifetimeMap",
-                        0 + 1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "a",
-                        a,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    _serde::ser::SerializeStructVariant::end(__serde_state)
-                }
-                Lifetimes::NoLifetimeMap { ref a } => {
-                    let mut __serde_state = match _serde::Serializer::serialize_struct_variant(
-                        __serializer,
-                        "Lifetimes",
-                        3u32,
-                        "NoLifetimeMap",
-                        0 + 1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "a",
-                        a,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    _serde::ser::SerializeStructVariant::end(__serde_state)
-                }
-            }
-        }
-    }
-};
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de, 'a> _serde::Deserialize<'de> for Lifetimes<'a> {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            #[allow(non_camel_case_types)]
-            enum __Field {
-                __field0,
-                __field1,
-                __field2,
-                __field3,
-            }
-            struct __FieldVisitor;
-            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                type Value = __Field;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "variant identifier",
-                    )
-                }
-                fn visit_u64<__E>(
-                    self,
-                    __value: u64,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        0u64 => _serde::__private::Ok(__Field::__field0),
-                        1u64 => _serde::__private::Ok(__Field::__field1),
-                        2u64 => _serde::__private::Ok(__Field::__field2),
-                        3u64 => _serde::__private::Ok(__Field::__field3),
-                        _ => {
-                            _serde::__private::Err(
-                                _serde::de::Error::invalid_value(
-                                    _serde::de::Unexpected::Unsigned(__value),
-                                    &"variant index 0 <= i < 4",
-                                ),
-                            )
-                        }
-                    }
-                }
-                fn visit_str<__E>(
-                    self,
-                    __value: &str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "LifetimeSeq" => _serde::__private::Ok(__Field::__field0),
-                        "NoLifetimeSeq" => _serde::__private::Ok(__Field::__field1),
-                        "LifetimeMap" => _serde::__private::Ok(__Field::__field2),
-                        "NoLifetimeMap" => _serde::__private::Ok(__Field::__field3),
-                        _ => {
-                            _serde::__private::Err(
-                                _serde::de::Error::unknown_variant(__value, VARIANTS),
-                            )
-                        }
-                    }
-                }
-                fn visit_bytes<__E>(
-                    self,
-                    __value: &[u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"LifetimeSeq" => _serde::__private::Ok(__Field::__field0),
-                        b"NoLifetimeSeq" => _serde::__private::Ok(__Field::__field1),
-                        b"LifetimeMap" => _serde::__private::Ok(__Field::__field2),
-                        b"NoLifetimeMap" => _serde::__private::Ok(__Field::__field3),
-                        _ => {
-                            let __value = &_serde::__private::from_utf8_lossy(__value);
-                            _serde::__private::Err(
-                                _serde::de::Error::unknown_variant(__value, VARIANTS),
-                            )
-                        }
-                    }
-                }
-            }
-            impl<'de> _serde::Deserialize<'de> for __Field {
-                #[inline]
-                fn deserialize<__D>(
-                    __deserializer: __D,
-                ) -> _serde::__private::Result<Self, __D::Error>
-                where
-                    __D: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserializer::deserialize_identifier(
-                        __deserializer,
-                        __FieldVisitor,
-                    )
-                }
-            }
-            struct __Visitor<'de, 'a> {
-                marker: _serde::__private::PhantomData<Lifetimes<'a>>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, 'a> _serde::de::Visitor<'de> for __Visitor<'de, 'a> {
-                type Value = Lifetimes<'a>;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "enum Lifetimes",
-                    )
-                }
-                fn visit_enum<__A>(
-                    self,
-                    __data: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::EnumAccess<'de>,
-                {
-                    match match _serde::de::EnumAccess::variant(__data) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        (__Field::__field0, __variant) => {
-                            _serde::__private::Result::map(
-                                _serde::de::VariantAccess::newtype_variant::<
-                                    &'a i32,
-                                >(__variant),
-                                Lifetimes::LifetimeSeq,
-                            )
-                        }
-                        (__Field::__field1, __variant) => {
-                            _serde::__private::Result::map(
-                                _serde::de::VariantAccess::newtype_variant::<
-                                    i32,
-                                >(__variant),
-                                Lifetimes::NoLifetimeSeq,
-                            )
-                        }
-                        (__Field::__field2, __variant) => {
-                            #[allow(non_camel_case_types)]
-                            enum __Field {
-                                __field0,
-                                __ignore,
-                            }
-                            struct __FieldVisitor;
-                            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                                type Value = __Field;
-                                fn expecting(
-                                    &self,
-                                    __formatter: &mut _serde::__private::Formatter,
-                                ) -> _serde::__private::fmt::Result {
-                                    _serde::__private::Formatter::write_str(
-                                        __formatter,
-                                        "field identifier",
-                                    )
-                                }
-                                fn visit_u64<__E>(
-                                    self,
-                                    __value: u64,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        0u64 => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
-                                fn visit_str<__E>(
-                                    self,
-                                    __value: &str,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        "a" => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
-                                fn visit_bytes<__E>(
-                                    self,
-                                    __value: &[u8],
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        b"a" => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
-                            }
-                            impl<'de> _serde::Deserialize<'de> for __Field {
-                                #[inline]
-                                fn deserialize<__D>(
-                                    __deserializer: __D,
-                                ) -> _serde::__private::Result<Self, __D::Error>
-                                where
-                                    __D: _serde::Deserializer<'de>,
-                                {
-                                    _serde::Deserializer::deserialize_identifier(
-                                        __deserializer,
-                                        __FieldVisitor,
-                                    )
-                                }
-                            }
-                            struct __Visitor<'de, 'a> {
-                                marker: _serde::__private::PhantomData<Lifetimes<'a>>,
-                                lifetime: _serde::__private::PhantomData<&'de ()>,
-                            }
-                            impl<'de, 'a> _serde::de::Visitor<'de>
-                            for __Visitor<'de, 'a> {
-                                type Value = Lifetimes<'a>;
-                                fn expecting(
-                                    &self,
-                                    __formatter: &mut _serde::__private::Formatter,
-                                ) -> _serde::__private::fmt::Result {
-                                    _serde::__private::Formatter::write_str(
-                                        __formatter,
-                                        "struct variant Lifetimes::LifetimeMap",
-                                    )
-                                }
-                                #[inline]
-                                fn visit_seq<__A>(
-                                    self,
-                                    mut __seq: __A,
-                                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                                where
-                                    __A: _serde::de::SeqAccess<'de>,
-                                {
-                                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                                        &'a i32,
-                                    >(&mut __seq) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    } {
-                                        _serde::__private::Some(__value) => __value,
-                                        _serde::__private::None => {
-                                            return _serde::__private::Err(
-                                                _serde::de::Error::invalid_length(
-                                                    0usize,
-                                                    &"struct variant Lifetimes::LifetimeMap with 1 element",
-                                                ),
-                                            );
-                                        }
-                                    };
-                                    _serde::__private::Ok(Lifetimes::LifetimeMap {
-                                        a: __field0,
-                                    })
-                                }
-                                #[inline]
-                                fn visit_map<__A>(
-                                    self,
-                                    mut __map: __A,
-                                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                                where
-                                    __A: _serde::de::MapAccess<'de>,
-                                {
-                                    let mut __field0: _serde::__private::Option<&'a i32> = _serde::__private::None;
-                                    while let _serde::__private::Some(__key)
-                                        = match _serde::de::MapAccess::next_key::<
-                                            __Field,
-                                        >(&mut __map) {
-                                            _serde::__private::Ok(__val) => __val,
-                                            _serde::__private::Err(__err) => {
-                                                return _serde::__private::Err(__err);
-                                            }
-                                        } {
-                                        match __key {
-                                            __Field::__field0 => {
-                                                if _serde::__private::Option::is_some(&__field0) {
-                                                    return _serde::__private::Err(
-                                                        <__A::Error as _serde::de::Error>::duplicate_field("a"),
-                                                    );
-                                                }
-                                                __field0 = _serde::__private::Some(
-                                                    match _serde::de::MapAccess::next_value::<
-                                                        &'a i32,
-                                                    >(&mut __map) {
-                                                        _serde::__private::Ok(__val) => __val,
-                                                        _serde::__private::Err(__err) => {
-                                                            return _serde::__private::Err(__err);
-                                                        }
-                                                    },
-                                                );
-                                            }
-                                            _ => {
-                                                let _ = match _serde::de::MapAccess::next_value::<
-                                                    _serde::de::IgnoredAny,
-                                                >(&mut __map) {
-                                                    _serde::__private::Ok(__val) => __val,
-                                                    _serde::__private::Err(__err) => {
-                                                        return _serde::__private::Err(__err);
-                                                    }
-                                                };
-                                            }
-                                        }
-                                    }
-                                    let __field0 = match __field0 {
-                                        _serde::__private::Some(__field0) => __field0,
-                                        _serde::__private::None => {
-                                            match _serde::__private::de::missing_field("a") {
-                                                _serde::__private::Ok(__val) => __val,
-                                                _serde::__private::Err(__err) => {
-                                                    return _serde::__private::Err(__err);
-                                                }
-                                            }
-                                        }
-                                    };
-                                    _serde::__private::Ok(Lifetimes::LifetimeMap {
-                                        a: __field0,
-                                    })
-                                }
-                            }
-                            const FIELDS: &'static [&'static str] = &["a"];
-                            _serde::de::VariantAccess::struct_variant(
-                                __variant,
-                                FIELDS,
-                                __Visitor {
-                                    marker: _serde::__private::PhantomData::<Lifetimes<'a>>,
-                                    lifetime: _serde::__private::PhantomData,
-                                },
-                            )
-                        }
-                        (__Field::__field3, __variant) => {
-                            #[allow(non_camel_case_types)]
-                            enum __Field {
-                                __field0,
-                                __ignore,
-                            }
-                            struct __FieldVisitor;
-                            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                                type Value = __Field;
-                                fn expecting(
-                                    &self,
-                                    __formatter: &mut _serde::__private::Formatter,
-                                ) -> _serde::__private::fmt::Result {
-                                    _serde::__private::Formatter::write_str(
-                                        __formatter,
-                                        "field identifier",
-                                    )
-                                }
-                                fn visit_u64<__E>(
-                                    self,
-                                    __value: u64,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        0u64 => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
-                                fn visit_str<__E>(
-                                    self,
-                                    __value: &str,
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        "a" => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
-                                fn visit_bytes<__E>(
-                                    self,
-                                    __value: &[u8],
-                                ) -> _serde::__private::Result<Self::Value, __E>
-                                where
-                                    __E: _serde::de::Error,
-                                {
-                                    match __value {
-                                        b"a" => _serde::__private::Ok(__Field::__field0),
-                                        _ => _serde::__private::Ok(__Field::__ignore),
-                                    }
-                                }
-                            }
-                            impl<'de> _serde::Deserialize<'de> for __Field {
-                                #[inline]
-                                fn deserialize<__D>(
-                                    __deserializer: __D,
-                                ) -> _serde::__private::Result<Self, __D::Error>
-                                where
-                                    __D: _serde::Deserializer<'de>,
-                                {
-                                    _serde::Deserializer::deserialize_identifier(
-                                        __deserializer,
-                                        __FieldVisitor,
-                                    )
-                                }
-                            }
-                            struct __Visitor<'de, 'a> {
-                                marker: _serde::__private::PhantomData<Lifetimes<'a>>,
-                                lifetime: _serde::__private::PhantomData<&'de ()>,
-                            }
-                            impl<'de, 'a> _serde::de::Visitor<'de>
-                            for __Visitor<'de, 'a> {
-                                type Value = Lifetimes<'a>;
-                                fn expecting(
-                                    &self,
-                                    __formatter: &mut _serde::__private::Formatter,
-                                ) -> _serde::__private::fmt::Result {
-                                    _serde::__private::Formatter::write_str(
-                                        __formatter,
-                                        "struct variant Lifetimes::NoLifetimeMap",
-                                    )
-                                }
-                                #[inline]
-                                fn visit_seq<__A>(
-                                    self,
-                                    mut __seq: __A,
-                                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                                where
-                                    __A: _serde::de::SeqAccess<'de>,
-                                {
-                                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                                        i32,
-                                    >(&mut __seq) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    } {
-                                        _serde::__private::Some(__value) => __value,
-                                        _serde::__private::None => {
-                                            return _serde::__private::Err(
-                                                _serde::de::Error::invalid_length(
-                                                    0usize,
-                                                    &"struct variant Lifetimes::NoLifetimeMap with 1 element",
-                                                ),
-                                            );
-                                        }
-                                    };
-                                    _serde::__private::Ok(Lifetimes::NoLifetimeMap {
-                                        a: __field0,
-                                    })
-                                }
-                                #[inline]
-                                fn visit_map<__A>(
-                                    self,
-                                    mut __map: __A,
-                                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                                where
-                                    __A: _serde::de::MapAccess<'de>,
-                                {
-                                    let mut __field0: _serde::__private::Option<i32> = _serde::__private::None;
-                                    while let _serde::__private::Some(__key)
-                                        = match _serde::de::MapAccess::next_key::<
-                                            __Field,
-                                        >(&mut __map) {
-                                            _serde::__private::Ok(__val) => __val,
-                                            _serde::__private::Err(__err) => {
-                                                return _serde::__private::Err(__err);
-                                            }
-                                        } {
-                                        match __key {
-                                            __Field::__field0 => {
-                                                if _serde::__private::Option::is_some(&__field0) {
-                                                    return _serde::__private::Err(
-                                                        <__A::Error as _serde::de::Error>::duplicate_field("a"),
-                                                    );
-                                                }
-                                                __field0 = _serde::__private::Some(
-                                                    match _serde::de::MapAccess::next_value::<i32>(&mut __map) {
-                                                        _serde::__private::Ok(__val) => __val,
-                                                        _serde::__private::Err(__err) => {
-                                                            return _serde::__private::Err(__err);
-                                                        }
-                                                    },
-                                                );
-                                            }
-                                            _ => {
-                                                let _ = match _serde::de::MapAccess::next_value::<
-                                                    _serde::de::IgnoredAny,
-                                                >(&mut __map) {
-                                                    _serde::__private::Ok(__val) => __val,
-                                                    _serde::__private::Err(__err) => {
-                                                        return _serde::__private::Err(__err);
-                                                    }
-                                                };
-                                            }
-                                        }
-                                    }
-                                    let __field0 = match __field0 {
-                                        _serde::__private::Some(__field0) => __field0,
-                                        _serde::__private::None => {
-                                            match _serde::__private::de::missing_field("a") {
-                                                _serde::__private::Ok(__val) => __val,
-                                                _serde::__private::Err(__err) => {
-                                                    return _serde::__private::Err(__err);
-                                                }
-                                            }
-                                        }
-                                    };
-                                    _serde::__private::Ok(Lifetimes::NoLifetimeMap {
-                                        a: __field0,
-                                    })
-                                }
-                            }
-                            const FIELDS: &'static [&'static str] = &["a"];
-                            _serde::de::VariantAccess::struct_variant(
-                                __variant,
-                                FIELDS,
-                                __Visitor {
-                                    marker: _serde::__private::PhantomData::<Lifetimes<'a>>,
-                                    lifetime: _serde::__private::PhantomData,
-                                },
-                            )
-                        }
-                    }
-                }
-            }
-            const VARIANTS: &'static [&'static str] = &[
-                "LifetimeSeq",
-                "NoLifetimeSeq",
-                "LifetimeMap",
-                "NoLifetimeMap",
-            ];
-            _serde::Deserializer::deserialize_enum(
-                __deserializer,
-                "Lifetimes",
-                VARIANTS,
-                __Visitor {
-                    marker: _serde::__private::PhantomData::<Lifetimes<'a>>,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-    }
-};

test_suite/tests/expand/lifetimes.rs

@@ -1,9 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Serialize, Deserialize)]
-enum Lifetimes<'a> {
-    LifetimeSeq(&'a i32),
-    NoLifetimeSeq(i32),
-    LifetimeMap { a: &'a i32 },
-    NoLifetimeMap { a: i32 },
-}

test_suite/tests/expand/named_map.expanded.rs

@@ -1,686 +0,0 @@
-use serde::{Deserialize, Serialize};
-struct SerNamedMap<'a, 'b, A: 'a, B: 'b, C> {
-    a: &'a A,
-    b: &'b mut B,
-    c: C,
-}
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'a, 'b, A: 'a, B: 'b, C> _serde::Serialize for SerNamedMap<'a, 'b, A, B, C>
-    where
-        A: _serde::Serialize,
-        B: _serde::Serialize,
-        C: _serde::Serialize,
-    {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            let mut __serde_state = match _serde::Serializer::serialize_struct(
-                __serializer,
-                "SerNamedMap",
-                false as usize + 1 + 1 + 1,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            match _serde::ser::SerializeStruct::serialize_field(
-                &mut __serde_state,
-                "a",
-                &self.a,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            match _serde::ser::SerializeStruct::serialize_field(
-                &mut __serde_state,
-                "b",
-                &self.b,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            match _serde::ser::SerializeStruct::serialize_field(
-                &mut __serde_state,
-                "c",
-                &self.c,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            _serde::ser::SerializeStruct::end(__serde_state)
-        }
-    }
-};
-struct DeNamedMap<A, B, C> {
-    a: A,
-    b: B,
-    c: C,
-}
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de, A, B, C> _serde::Deserialize<'de> for DeNamedMap<A, B, C>
-    where
-        A: _serde::Deserialize<'de>,
-        B: _serde::Deserialize<'de>,
-        C: _serde::Deserialize<'de>,
-    {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            #[allow(non_camel_case_types)]
-            enum __Field {
-                __field0,
-                __field1,
-                __field2,
-                __ignore,
-            }
-            struct __FieldVisitor;
-            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                type Value = __Field;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "field identifier",
-                    )
-                }
-                fn visit_u64<__E>(
-                    self,
-                    __value: u64,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        0u64 => _serde::__private::Ok(__Field::__field0),
-                        1u64 => _serde::__private::Ok(__Field::__field1),
-                        2u64 => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_str<__E>(
-                    self,
-                    __value: &str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "a" => _serde::__private::Ok(__Field::__field0),
-                        "b" => _serde::__private::Ok(__Field::__field1),
-                        "c" => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_bytes<__E>(
-                    self,
-                    __value: &[u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"a" => _serde::__private::Ok(__Field::__field0),
-                        b"b" => _serde::__private::Ok(__Field::__field1),
-                        b"c" => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-            }
-            impl<'de> _serde::Deserialize<'de> for __Field {
-                #[inline]
-                fn deserialize<__D>(
-                    __deserializer: __D,
-                ) -> _serde::__private::Result<Self, __D::Error>
-                where
-                    __D: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserializer::deserialize_identifier(
-                        __deserializer,
-                        __FieldVisitor,
-                    )
-                }
-            }
-            struct __Visitor<'de, A, B, C>
-            where
-                A: _serde::Deserialize<'de>,
-                B: _serde::Deserialize<'de>,
-                C: _serde::Deserialize<'de>,
-            {
-                marker: _serde::__private::PhantomData<DeNamedMap<A, B, C>>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, A, B, C> _serde::de::Visitor<'de> for __Visitor<'de, A, B, C>
-            where
-                A: _serde::Deserialize<'de>,
-                B: _serde::Deserialize<'de>,
-                C: _serde::Deserialize<'de>,
-            {
-                type Value = DeNamedMap<A, B, C>;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "struct DeNamedMap",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                        A,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    0usize,
-                                    &"struct DeNamedMap with 3 elements",
-                                ),
-                            );
-                        }
-                    };
-                    let __field1 = match match _serde::de::SeqAccess::next_element::<
-                        B,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    1usize,
-                                    &"struct DeNamedMap with 3 elements",
-                                ),
-                            );
-                        }
-                    };
-                    let __field2 = match match _serde::de::SeqAccess::next_element::<
-                        C,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    2usize,
-                                    &"struct DeNamedMap with 3 elements",
-                                ),
-                            );
-                        }
-                    };
-                    _serde::__private::Ok(DeNamedMap {
-                        a: __field0,
-                        b: __field1,
-                        c: __field2,
-                    })
-                }
-                #[inline]
-                fn visit_map<__A>(
-                    self,
-                    mut __map: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::MapAccess<'de>,
-                {
-                    let mut __field0: _serde::__private::Option<A> = _serde::__private::None;
-                    let mut __field1: _serde::__private::Option<B> = _serde::__private::None;
-                    let mut __field2: _serde::__private::Option<C> = _serde::__private::None;
-                    while let _serde::__private::Some(__key)
-                        = match _serde::de::MapAccess::next_key::<__Field>(&mut __map) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        match __key {
-                            __Field::__field0 => {
-                                if _serde::__private::Option::is_some(&__field0) {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field("a"),
-                                    );
-                                }
-                                __field0 = _serde::__private::Some(
-                                    match _serde::de::MapAccess::next_value::<A>(&mut __map) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    },
-                                );
-                            }
-                            __Field::__field1 => {
-                                if _serde::__private::Option::is_some(&__field1) {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field("b"),
-                                    );
-                                }
-                                __field1 = _serde::__private::Some(
-                                    match _serde::de::MapAccess::next_value::<B>(&mut __map) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    },
-                                );
-                            }
-                            __Field::__field2 => {
-                                if _serde::__private::Option::is_some(&__field2) {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field("c"),
-                                    );
-                                }
-                                __field2 = _serde::__private::Some(
-                                    match _serde::de::MapAccess::next_value::<C>(&mut __map) {
-                                        _serde::__private::Ok(__val) => __val,
-                                        _serde::__private::Err(__err) => {
-                                            return _serde::__private::Err(__err);
-                                        }
-                                    },
-                                );
-                            }
-                            _ => {
-                                let _ = match _serde::de::MapAccess::next_value::<
-                                    _serde::de::IgnoredAny,
-                                >(&mut __map) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                            }
-                        }
-                    }
-                    let __field0 = match __field0 {
-                        _serde::__private::Some(__field0) => __field0,
-                        _serde::__private::None => {
-                            match _serde::__private::de::missing_field("a") {
-                                _serde::__private::Ok(__val) => __val,
-                                _serde::__private::Err(__err) => {
-                                    return _serde::__private::Err(__err);
-                                }
-                            }
-                        }
-                    };
-                    let __field1 = match __field1 {
-                        _serde::__private::Some(__field1) => __field1,
-                        _serde::__private::None => {
-                            match _serde::__private::de::missing_field("b") {
-                                _serde::__private::Ok(__val) => __val,
-                                _serde::__private::Err(__err) => {
-                                    return _serde::__private::Err(__err);
-                                }
-                            }
-                        }
-                    };
-                    let __field2 = match __field2 {
-                        _serde::__private::Some(__field2) => __field2,
-                        _serde::__private::None => {
-                            match _serde::__private::de::missing_field("c") {
-                                _serde::__private::Ok(__val) => __val,
-                                _serde::__private::Err(__err) => {
-                                    return _serde::__private::Err(__err);
-                                }
-                            }
-                        }
-                    };
-                    _serde::__private::Ok(DeNamedMap {
-                        a: __field0,
-                        b: __field1,
-                        c: __field2,
-                    })
-                }
-            }
-            const FIELDS: &'static [&'static str] = &["a", "b", "c"];
-            _serde::Deserializer::deserialize_struct(
-                __deserializer,
-                "DeNamedMap",
-                FIELDS,
-                __Visitor {
-                    marker: _serde::__private::PhantomData::<DeNamedMap<A, B, C>>,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-        fn deserialize_in_place<__D>(
-            __deserializer: __D,
-            __place: &mut Self,
-        ) -> _serde::__private::Result<(), __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            #[allow(non_camel_case_types)]
-            enum __Field {
-                __field0,
-                __field1,
-                __field2,
-                __ignore,
-            }
-            struct __FieldVisitor;
-            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                type Value = __Field;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "field identifier",
-                    )
-                }
-                fn visit_u64<__E>(
-                    self,
-                    __value: u64,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        0u64 => _serde::__private::Ok(__Field::__field0),
-                        1u64 => _serde::__private::Ok(__Field::__field1),
-                        2u64 => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_str<__E>(
-                    self,
-                    __value: &str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        "a" => _serde::__private::Ok(__Field::__field0),
-                        "b" => _serde::__private::Ok(__Field::__field1),
-                        "c" => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-                fn visit_bytes<__E>(
-                    self,
-                    __value: &[u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        b"a" => _serde::__private::Ok(__Field::__field0),
-                        b"b" => _serde::__private::Ok(__Field::__field1),
-                        b"c" => _serde::__private::Ok(__Field::__field2),
-                        _ => _serde::__private::Ok(__Field::__ignore),
-                    }
-                }
-            }
-            impl<'de> _serde::Deserialize<'de> for __Field {
-                #[inline]
-                fn deserialize<__D>(
-                    __deserializer: __D,
-                ) -> _serde::__private::Result<Self, __D::Error>
-                where
-                    __D: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserializer::deserialize_identifier(
-                        __deserializer,
-                        __FieldVisitor,
-                    )
-                }
-            }
-            struct __Visitor<'de, 'place, A: 'place, B: 'place, C: 'place>
-            where
-                A: _serde::Deserialize<'de>,
-                B: _serde::Deserialize<'de>,
-                C: _serde::Deserialize<'de>,
-            {
-                place: &'place mut DeNamedMap<A, B, C>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, 'place, A: 'place, B: 'place, C: 'place> _serde::de::Visitor<'de>
-            for __Visitor<'de, 'place, A, B, C>
-            where
-                A: _serde::Deserialize<'de>,
-                B: _serde::Deserialize<'de>,
-                C: _serde::Deserialize<'de>,
-            {
-                type Value = ();
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "struct DeNamedMap",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.a),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                0usize,
-                                &"struct DeNamedMap with 3 elements",
-                            ),
-                        );
-                    }
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.b),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                1usize,
-                                &"struct DeNamedMap with 3 elements",
-                            ),
-                        );
-                    }
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.c),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                2usize,
-                                &"struct DeNamedMap with 3 elements",
-                            ),
-                        );
-                    }
-                    _serde::__private::Ok(())
-                }
-                #[inline]
-                fn visit_map<__A>(
-                    self,
-                    mut __map: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::MapAccess<'de>,
-                {
-                    let mut __field0: bool = false;
-                    let mut __field1: bool = false;
-                    let mut __field2: bool = false;
-                    while let _serde::__private::Some(__key)
-                        = match _serde::de::MapAccess::next_key::<__Field>(&mut __map) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        match __key {
-                            __Field::__field0 => {
-                                if __field0 {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field("a"),
-                                    );
-                                }
-                                match _serde::de::MapAccess::next_value_seed(
-                                    &mut __map,
-                                    _serde::__private::de::InPlaceSeed(&mut self.place.a),
-                                ) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                                __field0 = true;
-                            }
-                            __Field::__field1 => {
-                                if __field1 {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field("b"),
-                                    );
-                                }
-                                match _serde::de::MapAccess::next_value_seed(
-                                    &mut __map,
-                                    _serde::__private::de::InPlaceSeed(&mut self.place.b),
-                                ) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                                __field1 = true;
-                            }
-                            __Field::__field2 => {
-                                if __field2 {
-                                    return _serde::__private::Err(
-                                        <__A::Error as _serde::de::Error>::duplicate_field("c"),
-                                    );
-                                }
-                                match _serde::de::MapAccess::next_value_seed(
-                                    &mut __map,
-                                    _serde::__private::de::InPlaceSeed(&mut self.place.c),
-                                ) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                                __field2 = true;
-                            }
-                            _ => {
-                                let _ = match _serde::de::MapAccess::next_value::<
-                                    _serde::de::IgnoredAny,
-                                >(&mut __map) {
-                                    _serde::__private::Ok(__val) => __val,
-                                    _serde::__private::Err(__err) => {
-                                        return _serde::__private::Err(__err);
-                                    }
-                                };
-                            }
-                        }
-                    }
-                    if !__field0 {
-                        self
-                            .place
-                            .a = match _serde::__private::de::missing_field("a") {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        };
-                    }
-                    if !__field1 {
-                        self
-                            .place
-                            .b = match _serde::__private::de::missing_field("b") {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        };
-                    }
-                    if !__field2 {
-                        self
-                            .place
-                            .c = match _serde::__private::de::missing_field("c") {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        };
-                    }
-                    _serde::__private::Ok(())
-                }
-            }
-            const FIELDS: &'static [&'static str] = &["a", "b", "c"];
-            _serde::Deserializer::deserialize_struct(
-                __deserializer,
-                "DeNamedMap",
-                FIELDS,
-                __Visitor {
-                    place: __place,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-    }
-};

test_suite/tests/expand/named_map.rs

@@ -1,15 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Serialize)]
-struct SerNamedMap<'a, 'b, A: 'a, B: 'b, C> {
-    a: &'a A,
-    b: &'b mut B,
-    c: C,
-}
-
-#[derive(Deserialize)]
-struct DeNamedMap<A, B, C> {
-    a: A,
-    b: B,
-    c: C,
-}

test_suite/tests/expand/named_tuple.expanded.rs

@@ -1,288 +0,0 @@
-use serde::{Deserialize, Serialize};
-struct SerNamedTuple<'a, 'b, A: 'a, B: 'b, C>(&'a A, &'b mut B, C);
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'a, 'b, A: 'a, B: 'b, C> _serde::Serialize for SerNamedTuple<'a, 'b, A, B, C>
-    where
-        A: _serde::Serialize,
-        B: _serde::Serialize,
-        C: _serde::Serialize,
-    {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            let mut __serde_state = match _serde::Serializer::serialize_tuple_struct(
-                __serializer,
-                "SerNamedTuple",
-                0 + 1 + 1 + 1,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            match _serde::ser::SerializeTupleStruct::serialize_field(
-                &mut __serde_state,
-                &self.0,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            match _serde::ser::SerializeTupleStruct::serialize_field(
-                &mut __serde_state,
-                &self.1,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            match _serde::ser::SerializeTupleStruct::serialize_field(
-                &mut __serde_state,
-                &self.2,
-            ) {
-                _serde::__private::Ok(__val) => __val,
-                _serde::__private::Err(__err) => {
-                    return _serde::__private::Err(__err);
-                }
-            };
-            _serde::ser::SerializeTupleStruct::end(__serde_state)
-        }
-    }
-};
-struct DeNamedTuple<A, B, C>(A, B, C);
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de, A, B, C> _serde::Deserialize<'de> for DeNamedTuple<A, B, C>
-    where
-        A: _serde::Deserialize<'de>,
-        B: _serde::Deserialize<'de>,
-        C: _serde::Deserialize<'de>,
-    {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            struct __Visitor<'de, A, B, C>
-            where
-                A: _serde::Deserialize<'de>,
-                B: _serde::Deserialize<'de>,
-                C: _serde::Deserialize<'de>,
-            {
-                marker: _serde::__private::PhantomData<DeNamedTuple<A, B, C>>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, A, B, C> _serde::de::Visitor<'de> for __Visitor<'de, A, B, C>
-            where
-                A: _serde::Deserialize<'de>,
-                B: _serde::Deserialize<'de>,
-                C: _serde::Deserialize<'de>,
-            {
-                type Value = DeNamedTuple<A, B, C>;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "tuple struct DeNamedTuple",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    let __field0 = match match _serde::de::SeqAccess::next_element::<
-                        A,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    0usize,
-                                    &"tuple struct DeNamedTuple with 3 elements",
-                                ),
-                            );
-                        }
-                    };
-                    let __field1 = match match _serde::de::SeqAccess::next_element::<
-                        B,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    1usize,
-                                    &"tuple struct DeNamedTuple with 3 elements",
-                                ),
-                            );
-                        }
-                    };
-                    let __field2 = match match _serde::de::SeqAccess::next_element::<
-                        C,
-                    >(&mut __seq) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    } {
-                        _serde::__private::Some(__value) => __value,
-                        _serde::__private::None => {
-                            return _serde::__private::Err(
-                                _serde::de::Error::invalid_length(
-                                    2usize,
-                                    &"tuple struct DeNamedTuple with 3 elements",
-                                ),
-                            );
-                        }
-                    };
-                    _serde::__private::Ok(DeNamedTuple(__field0, __field1, __field2))
-                }
-            }
-            _serde::Deserializer::deserialize_tuple_struct(
-                __deserializer,
-                "DeNamedTuple",
-                3usize,
-                __Visitor {
-                    marker: _serde::__private::PhantomData::<DeNamedTuple<A, B, C>>,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-        fn deserialize_in_place<__D>(
-            __deserializer: __D,
-            __place: &mut Self,
-        ) -> _serde::__private::Result<(), __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            struct __Visitor<'de, 'place, A: 'place, B: 'place, C: 'place>
-            where
-                A: _serde::Deserialize<'de>,
-                B: _serde::Deserialize<'de>,
-                C: _serde::Deserialize<'de>,
-            {
-                place: &'place mut DeNamedTuple<A, B, C>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de, 'place, A: 'place, B: 'place, C: 'place> _serde::de::Visitor<'de>
-            for __Visitor<'de, 'place, A, B, C>
-            where
-                A: _serde::Deserialize<'de>,
-                B: _serde::Deserialize<'de>,
-                C: _serde::Deserialize<'de>,
-            {
-                type Value = ();
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "tuple struct DeNamedTuple",
-                    )
-                }
-                #[inline]
-                fn visit_seq<__A>(
-                    self,
-                    mut __seq: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::SeqAccess<'de>,
-                {
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.0),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                0usize,
-                                &"tuple struct DeNamedTuple with 3 elements",
-                            ),
-                        );
-                    }
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.1),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                1usize,
-                                &"tuple struct DeNamedTuple with 3 elements",
-                            ),
-                        );
-                    }
-                    if let _serde::__private::None
-                        = match _serde::de::SeqAccess::next_element_seed(
-                            &mut __seq,
-                            _serde::__private::de::InPlaceSeed(&mut self.place.2),
-                        ) {
-                            _serde::__private::Ok(__val) => __val,
-                            _serde::__private::Err(__err) => {
-                                return _serde::__private::Err(__err);
-                            }
-                        } {
-                        return _serde::__private::Err(
-                            _serde::de::Error::invalid_length(
-                                2usize,
-                                &"tuple struct DeNamedTuple with 3 elements",
-                            ),
-                        );
-                    }
-                    _serde::__private::Ok(())
-                }
-            }
-            _serde::Deserializer::deserialize_tuple_struct(
-                __deserializer,
-                "DeNamedTuple",
-                3usize,
-                __Visitor {
-                    place: __place,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-    }
-};

test_suite/tests/expand/named_tuple.rs

@@ -1,7 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Serialize)]
-struct SerNamedTuple<'a, 'b, A: 'a, B: 'b, C>(&'a A, &'b mut B, C);
-
-#[derive(Deserialize)]
-struct DeNamedTuple<A, B, C>(A, B, C);

test_suite/tests/expand/named_unit.expanded.rs

@@ -1,61 +0,0 @@
-use serde::{Deserialize, Serialize};
-struct NamedUnit;
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl _serde::Serialize for NamedUnit {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            _serde::Serializer::serialize_unit_struct(__serializer, "NamedUnit")
-        }
-    }
-};
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de> _serde::Deserialize<'de> for NamedUnit {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            struct __Visitor;
-            impl<'de> _serde::de::Visitor<'de> for __Visitor {
-                type Value = NamedUnit;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "unit struct NamedUnit",
-                    )
-                }
-                #[inline]
-                fn visit_unit<__E>(self) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    _serde::__private::Ok(NamedUnit)
-                }
-            }
-            _serde::Deserializer::deserialize_unit_struct(
-                __deserializer,
-                "NamedUnit",
-                __Visitor,
-            )
-        }
-    }
-};

test_suite/tests/expand/named_unit.rs

@@ -1,4 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Serialize, Deserialize)]
-struct NamedUnit;

test_suite/tests/expand/ser_enum.expanded.rs

@@ -1,270 +0,0 @@
-use serde::Serialize;
-enum SerEnum<'a, B: 'a, C: 'a, D>
-where
-    D: 'a,
-{
-    Unit,
-    Seq(i8, B, &'a C, &'a mut D),
-    Map { a: i8, b: B, c: &'a C, d: &'a mut D },
-    _Unit2,
-    _Seq2(i8, B, &'a C, &'a mut D),
-    _Map2 { a: i8, b: B, c: &'a C, d: &'a mut D },
-}
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'a, B: 'a, C: 'a, D> _serde::Serialize for SerEnum<'a, B, C, D>
-    where
-        D: 'a,
-        B: _serde::Serialize,
-        C: _serde::Serialize,
-        D: _serde::Serialize,
-    {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            match *self {
-                SerEnum::Unit => {
-                    _serde::Serializer::serialize_unit_variant(
-                        __serializer,
-                        "SerEnum",
-                        0u32,
-                        "Unit",
-                    )
-                }
-                SerEnum::Seq(ref __field0, ref __field1, ref __field2, ref __field3) => {
-                    let mut __serde_state = match _serde::Serializer::serialize_tuple_variant(
-                        __serializer,
-                        "SerEnum",
-                        1u32,
-                        "Seq",
-                        0 + 1 + 1 + 1 + 1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field0,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field2,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field3,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    _serde::ser::SerializeTupleVariant::end(__serde_state)
-                }
-                SerEnum::Map { ref a, ref b, ref c, ref d } => {
-                    let mut __serde_state = match _serde::Serializer::serialize_struct_variant(
-                        __serializer,
-                        "SerEnum",
-                        2u32,
-                        "Map",
-                        0 + 1 + 1 + 1 + 1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "a",
-                        a,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "b",
-                        b,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "c",
-                        c,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "d",
-                        d,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    _serde::ser::SerializeStructVariant::end(__serde_state)
-                }
-                SerEnum::_Unit2 => {
-                    _serde::Serializer::serialize_unit_variant(
-                        __serializer,
-                        "SerEnum",
-                        3u32,
-                        "_Unit2",
-                    )
-                }
-                SerEnum::_Seq2(
-                    ref __field0,
-                    ref __field1,
-                    ref __field2,
-                    ref __field3,
-                ) => {
-                    let mut __serde_state = match _serde::Serializer::serialize_tuple_variant(
-                        __serializer,
-                        "SerEnum",
-                        4u32,
-                        "_Seq2",
-                        0 + 1 + 1 + 1 + 1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field0,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field2,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeTupleVariant::serialize_field(
-                        &mut __serde_state,
-                        __field3,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    _serde::ser::SerializeTupleVariant::end(__serde_state)
-                }
-                SerEnum::_Map2 { ref a, ref b, ref c, ref d } => {
-                    let mut __serde_state = match _serde::Serializer::serialize_struct_variant(
-                        __serializer,
-                        "SerEnum",
-                        5u32,
-                        "_Map2",
-                        0 + 1 + 1 + 1 + 1,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "a",
-                        a,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "b",
-                        b,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "c",
-                        c,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    match _serde::ser::SerializeStructVariant::serialize_field(
-                        &mut __serde_state,
-                        "d",
-                        d,
-                    ) {
-                        _serde::__private::Ok(__val) => __val,
-                        _serde::__private::Err(__err) => {
-                            return _serde::__private::Err(__err);
-                        }
-                    };
-                    _serde::ser::SerializeStructVariant::end(__serde_state)
-                }
-            }
-        }
-    }
-};

test_suite/tests/expand/ser_enum.rs

@@ -1,16 +0,0 @@
-use serde::Serialize;
-
-#[derive(Serialize)]
-enum SerEnum<'a, B: 'a, C: 'a, D>
-where
-    D: 'a,
-{
-    Unit,
-    Seq(i8, B, &'a C, &'a mut D),
-    Map { a: i8, b: B, c: &'a C, d: &'a mut D },
-
-    // Make sure we can support more than one variant.
-    _Unit2,
-    _Seq2(i8, B, &'a C, &'a mut D),
-    _Map2 { a: i8, b: B, c: &'a C, d: &'a mut D },
-}

test_suite/tests/expand/void.expanded.rs

@@ -1,149 +0,0 @@
-use serde::{Deserialize, Serialize};
-enum Void {}
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl _serde::Serialize for Void {
-        fn serialize<__S>(
-            &self,
-            __serializer: __S,
-        ) -> _serde::__private::Result<__S::Ok, __S::Error>
-        where
-            __S: _serde::Serializer,
-        {
-            match *self {}
-        }
-    }
-};
-#[doc(hidden)]
-#[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
-const _: () = {
-    #[allow(unused_extern_crates, clippy::useless_attribute)]
-    extern crate serde as _serde;
-    #[automatically_derived]
-    impl<'de> _serde::Deserialize<'de> for Void {
-        fn deserialize<__D>(
-            __deserializer: __D,
-        ) -> _serde::__private::Result<Self, __D::Error>
-        where
-            __D: _serde::Deserializer<'de>,
-        {
-            #[allow(non_camel_case_types)]
-            enum __Field {}
-            struct __FieldVisitor;
-            impl<'de> _serde::de::Visitor<'de> for __FieldVisitor {
-                type Value = __Field;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(
-                        __formatter,
-                        "variant identifier",
-                    )
-                }
-                fn visit_u64<__E>(
-                    self,
-                    __value: u64,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        _ => {
-                            _serde::__private::Err(
-                                _serde::de::Error::invalid_value(
-                                    _serde::de::Unexpected::Unsigned(__value),
-                                    &"variant index 0 <= i < 0",
-                                ),
-                            )
-                        }
-                    }
-                }
-                fn visit_str<__E>(
-                    self,
-                    __value: &str,
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        _ => {
-                            _serde::__private::Err(
-                                _serde::de::Error::unknown_variant(__value, VARIANTS),
-                            )
-                        }
-                    }
-                }
-                fn visit_bytes<__E>(
-                    self,
-                    __value: &[u8],
-                ) -> _serde::__private::Result<Self::Value, __E>
-                where
-                    __E: _serde::de::Error,
-                {
-                    match __value {
-                        _ => {
-                            let __value = &_serde::__private::from_utf8_lossy(__value);
-                            _serde::__private::Err(
-                                _serde::de::Error::unknown_variant(__value, VARIANTS),
-                            )
-                        }
-                    }
-                }
-            }
-            impl<'de> _serde::Deserialize<'de> for __Field {
-                #[inline]
-                fn deserialize<__D>(
-                    __deserializer: __D,
-                ) -> _serde::__private::Result<Self, __D::Error>
-                where
-                    __D: _serde::Deserializer<'de>,
-                {
-                    _serde::Deserializer::deserialize_identifier(
-                        __deserializer,
-                        __FieldVisitor,
-                    )
-                }
-            }
-            struct __Visitor<'de> {
-                marker: _serde::__private::PhantomData<Void>,
-                lifetime: _serde::__private::PhantomData<&'de ()>,
-            }
-            impl<'de> _serde::de::Visitor<'de> for __Visitor<'de> {
-                type Value = Void;
-                fn expecting(
-                    &self,
-                    __formatter: &mut _serde::__private::Formatter,
-                ) -> _serde::__private::fmt::Result {
-                    _serde::__private::Formatter::write_str(__formatter, "enum Void")
-                }
-                fn visit_enum<__A>(
-                    self,
-                    __data: __A,
-                ) -> _serde::__private::Result<Self::Value, __A::Error>
-                where
-                    __A: _serde::de::EnumAccess<'de>,
-                {
-                    _serde::__private::Result::map(
-                        _serde::de::EnumAccess::variant::<__Field>(__data),
-                        |(__impossible, _)| match __impossible {},
-                    )
-                }
-            }
-            const VARIANTS: &'static [&'static str] = &[];
-            _serde::Deserializer::deserialize_enum(
-                __deserializer,
-                "Void",
-                VARIANTS,
-                __Visitor {
-                    marker: _serde::__private::PhantomData::<Void>,
-                    lifetime: _serde::__private::PhantomData,
-                },
-            )
-        }
-    }
-};

test_suite/tests/expand/void.rs

@@ -1,4 +0,0 @@
-use serde::{Deserialize, Serialize};
-
-#[derive(Serialize, Deserialize)]
-enum Void {}

test_suite/tests/expandtest.rs

@@ -1,9 +0,0 @@
-#[cfg_attr(target_os = "emscripten", ignore)]
-#[cfg_attr(not(expandtest), ignore)]
-#[rustversion::attr(not(nightly), ignore)]
-#[cfg_attr(miri, ignore)]
-#[allow(unused_attributes)]
-#[test]
-fn expandtest() {
-    macrotest::expand("tests/expand/*.rs");
-}

test_suite/tests/test_annotations.rs

@@ -6,7 +6,8 @@
     clippy::nonstandard_macro_braces,
     clippy::too_many_lines,
     clippy::trivially_copy_pass_by_ref,
-    clippy::type_repetition_in_bounds
+    clippy::type_repetition_in_bounds,
+    clippy::uninlined_format_args,
 )]
 
 use serde::de::{self, MapAccess, Unexpected, Visitor};
@@ -641,7 +642,7 @@ fn test_unknown_field_rename_struct() {
             Token::Str("a4"),
             Token::I32(3),
         ],
-        "unknown field `a4`, expected one of `a1`, `a2`, `a6`",
+        "unknown field `a4`, expected one of `a1`, `a3`, `a2`, `a5`, `a6`",
     );
 }
 
@@ -779,7 +780,7 @@ fn test_rename_enum() {
             Token::StructVariant {
                 name: "AliasEnum",
                 variant: "sailor_moon",
-                len: 3,
+                len: 5,
             },
             Token::Str("a"),
             Token::I8(0),
@@ -797,7 +798,7 @@ fn test_rename_enum() {
             Token::StructVariant {
                 name: "AliasEnum",
                 variant: "usagi_tsukino",
-                len: 3,
+                len: 5,
             },
             Token::Str("a"),
             Token::I8(0),
@@ -826,7 +827,7 @@ fn test_unknown_field_rename_enum() {
             Token::StructVariant {
                 name: "AliasEnum",
                 variant: "usagi_tsukino",
-                len: 3,
+                len: 5,
             },
             Token::Str("a"),
             Token::I8(0),
@@ -835,7 +836,7 @@ fn test_unknown_field_rename_enum() {
             Token::Str("d"),
             Token::I8(2),
         ],
-        "unknown field `d`, expected one of `a`, `b`, `f`",
+        "unknown field `d`, expected one of `a`, `c`, `b`, `e`, `f`",
     );
 }
 
@@ -1235,7 +1236,7 @@ fn serialize_variant_as_string<S>(f1: &str, f2: &u8, serializer: S) -> Result<S:
 where
     S: Serializer,
 {
-    serializer.serialize_str(format!("{f1};{f2:?}").as_str())
+    serializer.collect_str(&format_args!("{};{:?}", f1, f2))
 }
 
 fn deserialize_string_as_variant<'de, D>(deserializer: D) -> Result<(String, u8), D::Error>
@@ -2657,6 +2658,68 @@ fn test_flatten_any_after_flatten_struct() {
     );
 }
 
+#[test]
+fn test_alias_in_flatten_context() {
+    #[derive(Debug, PartialEq, Deserialize)]
+    struct Outer {
+        #[serde(flatten)]
+        a: AliasStruct,
+        b: i32,
+    }
+
+    assert_de_tokens(
+        &Outer {
+            a: AliasStruct {
+                a1: 1,
+                a2: 2,
+                a4: 4,
+            },
+            b: 7,
+        },
+        &[
+            Token::Struct {
+                name: "Outer",
+                len: 4,
+            },
+            Token::Str("a1"),
+            Token::I32(1),
+            Token::Str("a2"),
+            Token::I32(2),
+            Token::Str("a5"),
+            Token::I32(4),
+            Token::Str("b"),
+            Token::I32(7),
+            Token::StructEnd,
+        ],
+    );
+
+    assert_de_tokens(
+        &Outer {
+            a: AliasStruct {
+                a1: 1,
+                a2: 2,
+                a4: 4,
+            },
+            b: 7,
+        },
+        &[
+            Token::Struct {
+                name: "Outer",
+                len: 4,
+            },
+            Token::Str("a1"),
+            Token::I32(1),
+            Token::Str("a2"),
+            Token::I32(2),
+            Token::Str("a6"),
+            Token::I32(4),
+            Token::Str("b"),
+            Token::I32(7),
+            Token::StructEnd,
+        ],
+    );
+}
+
 #[test]
 fn test_expecting_message() {
     #[derive(Deserialize, PartialEq, Debug)]

test_suite/tests/test_gen.rs

@@ -7,6 +7,7 @@
     unknown_lints,
     mixed_script_confusables,
     clippy::derive_partial_eq_without_eq,
+    clippy::extra_unused_type_parameters,
     clippy::items_after_statements,
     clippy::missing_errors_doc,
     clippy::missing_panics_doc,
@@ -891,3 +892,53 @@ pub struct RemotePackedNonCopyDef {
 impl Drop for RemotePackedNonCopyDef {
     fn drop(&mut self) {}
 }
+
+//////////////////////////////////////////////////////////////////////////
+
+/// Regression tests for <https://github.com/serde-rs/serde/issues/2371>
+#[allow(dead_code)]
+mod static_and_flatten {
+    use super::*;
+
+    #[derive(Deserialize)]
+    struct Nested;
+
+    #[derive(Deserialize)]
+    enum ExternallyTagged {
+        Flatten {
+            #[serde(flatten)]
+            nested: Nested,
+            string: &'static str,
+        },
+    }
+
+    #[derive(Deserialize)]
+    #[serde(tag = "tag")]
+    enum InternallyTagged {
+        Flatten {
+            #[serde(flatten)]
+            nested: Nested,
+            string: &'static str,
+        },
+    }
+
+    #[derive(Deserialize)]
+    #[serde(tag = "tag", content = "content")]
+    enum AdjacentlyTagged {
+        Flatten {
+            #[serde(flatten)]
+            nested: Nested,
+            string: &'static str,
+        },
+    }
+
+    #[derive(Deserialize)]
+    #[serde(untagged)]
+    enum UntaggedWorkaround {
+        Flatten {
+            #[serde(flatten)]
+            nested: Nested,
+            string: &'static str,
+        },
+    }
+}

test_suite/tests/test_macros.rs

@@ -1928,7 +1928,6 @@ fn test_internally_tagged_newtype_variant_containing_unit_struct() {
     );
 }
 
-#[deny(unaligned_references)]
 #[test]
 fn test_packed_struct_can_derive_serialize() {
     #[derive(Copy, Clone, Serialize)]

test_suite/tests/test_serde_path.rs

@@ -1,4 +1,7 @@
-#![allow(clippy::type_repetition_in_bounds)]
+#![allow(
+    clippy::extra_unused_type_parameters,
+    clippy::type_repetition_in_bounds
+)]
 
 #[test]
 fn test_gen_custom_serde() {

test_suite/tests/ui/remote/wrong_getter.stderr

@@ -4,7 +4,7 @@ error[E0308]: mismatched types
 15 | #[derive(Serialize)]
    |          ^^^^^^^^^
    |          |
-   |          expected `u8`, found `u16`
+   |          expected `&u8`, found `&u16`
    |          arguments to this function are incorrect
    |
    = note: expected reference `&u8`

test_suite/tests/ui/remote/wrong_ser.stderr

@@ -4,7 +4,7 @@ error[E0308]: mismatched types
 9 | #[derive(Serialize)]
   |          ^^^^^^^^^
   |          |
-  |          expected `u8`, found `u16`
+  |          expected `&u8`, found `&u16`
   |          arguments to this function are incorrect
   |
   = note: expected reference `&u8`