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David Tolnay 28a092261b
Work around test suite dead code warnings in nightly-2024-07-07
warning: struct `Cows` is never constructed
       --> test_suite/tests/test_borrow.rs:165:12
        |
    165 |     struct Cows<'a, 'b> {
        |            ^^^^

    warning: struct `Wrap` is never constructed
       --> test_suite/tests/test_borrow.rs:181:12
        |
    181 |     struct Wrap<'a, 'b> {
        |            ^^^^

    warning: struct `StructSkipDefaultGeneric` is never constructed
      --> test_suite/tests/test_de.rs:96:8
       |
    96 | struct StructSkipDefaultGeneric<T> {
       |        ^^^^^^^^^^^^^^^^^^^^^^^^

    warning: struct `NonAsciiIdents` is never constructed
       --> test_suite/tests/test_gen.rs:290:12
        |
    290 |     struct NonAsciiIdents {
        |            ^^^^^^^^^^^^^^
        |
    note: the lint level is defined here
       --> test_suite/tests/test_gen.rs:5:9
        |
    5   | #![deny(warnings)]
        |         ^^^^^^^^
        = note: `#[warn(dead_code)]` implied by `#[warn(warnings)]`

    warning: struct `EmptyBraced` is never constructed
       --> test_suite/tests/test_gen.rs:295:12
        |
    295 |     struct EmptyBraced {}
        |            ^^^^^^^^^^^

    warning: struct `EmptyBracedDenyUnknown` is never constructed
       --> test_suite/tests/test_gen.rs:299:12
        |
    299 |     struct EmptyBracedDenyUnknown {}
        |            ^^^^^^^^^^^^^^^^^^^^^^

    warning: struct `BracedSkipAll` is never constructed
       --> test_suite/tests/test_gen.rs:302:12
        |
    302 |     struct BracedSkipAll {
        |            ^^^^^^^^^^^^^

    warning: struct `BracedSkipAllDenyUnknown` is never constructed
       --> test_suite/tests/test_gen.rs:309:12
        |
    309 |     struct BracedSkipAllDenyUnknown {
        |            ^^^^^^^^^^^^^^^^^^^^^^^^

    warning: struct `EmptyTuple` is never constructed
       --> test_suite/tests/test_gen.rs:315:12
        |
    315 |     struct EmptyTuple();
        |            ^^^^^^^^^^

    warning: struct `EmptyTupleDenyUnknown` is never constructed
       --> test_suite/tests/test_gen.rs:319:12
        |
    319 |     struct EmptyTupleDenyUnknown();
        |            ^^^^^^^^^^^^^^^^^^^^^

    warning: struct `TupleSkipAll` is never constructed
       --> test_suite/tests/test_gen.rs:322:12
        |
    322 |     struct TupleSkipAll(#[serde(skip_deserializing)] u8);
        |            ^^^^^^^^^^^^

    warning: struct `TupleSkipAllDenyUnknown` is never constructed
       --> test_suite/tests/test_gen.rs:326:12
        |
    326 |     struct TupleSkipAllDenyUnknown(#[serde(skip_deserializing)] u8);
        |            ^^^^^^^^^^^^^^^^^^^^^^^

    warning: enum `EmptyEnum` is never used
       --> test_suite/tests/test_gen.rs:329:10
        |
    329 |     enum EmptyEnum {}
        |          ^^^^^^^^^

    warning: enum `EmptyEnumDenyUnknown` is never used
       --> test_suite/tests/test_gen.rs:333:10
        |
    333 |     enum EmptyEnumDenyUnknown {}
        |          ^^^^^^^^^^^^^^^^^^^^

    warning: enum `EnumSkipAll` is never used
       --> test_suite/tests/test_gen.rs:336:10
        |
    336 |     enum EnumSkipAll {
        |          ^^^^^^^^^^^

    warning: enum `EmptyVariants` is never used
       --> test_suite/tests/test_gen.rs:343:10
        |
    343 |     enum EmptyVariants {
        |          ^^^^^^^^^^^^^

    warning: enum `EmptyVariantsDenyUnknown` is never used
       --> test_suite/tests/test_gen.rs:355:10
        |
    355 |     enum EmptyVariantsDenyUnknown {
        |          ^^^^^^^^^^^^^^^^^^^^^^^^

    warning: struct `UnitDenyUnknown` is never constructed
       --> test_suite/tests/test_gen.rs:367:12
        |
    367 |     struct UnitDenyUnknown;
        |            ^^^^^^^^^^^^^^^

    warning: struct `EmptyArray` is never constructed
       --> test_suite/tests/test_gen.rs:370:12
        |
    370 |     struct EmptyArray {
        |            ^^^^^^^^^^

    warning: enum `Or` is never used
       --> test_suite/tests/test_gen.rs:374:10
        |
    374 |     enum Or<A, B> {
        |          ^^

    warning: enum `OrDef` is never used
       --> test_suite/tests/test_gen.rs:381:10
        |
    381 |     enum OrDef<A, B> {
        |          ^^^^^

    warning: struct `Str` is never constructed
       --> test_suite/tests/test_gen.rs:386:12
        |
    386 |     struct Str<'a>(&'a str);
        |            ^^^

    warning: struct `StrDef` is never constructed
       --> test_suite/tests/test_gen.rs:390:12
        |
    390 |     struct StrDef<'a>(&'a str);
        |            ^^^^^^

    warning: struct `Remote` is never constructed
       --> test_suite/tests/test_gen.rs:393:12
        |
    393 |     struct Remote<'a> {
        |            ^^^^^^

    warning: enum `BorrowVariant` is never used
       --> test_suite/tests/test_gen.rs:401:10
        |
    401 |     enum BorrowVariant<'a> {
        |          ^^^^^^^^^^^^^

    warning: struct `RemoteVisibility` is never constructed
       --> test_suite/tests/test_gen.rs:418:12
        |
    418 |     struct RemoteVisibility {
        |            ^^^^^^^^^^^^^^^^

    warning: struct `FlattenDenyUnknown` is never constructed
       --> test_suite/tests/test_gen.rs:551:12
        |
    551 |     struct FlattenDenyUnknown<T> {
        |            ^^^^^^^^^^^^^^^^^^

    warning: struct `StaticStrStruct` is never constructed
       --> test_suite/tests/test_gen.rs:557:12
        |
    557 |     struct StaticStrStruct<'a> {
        |            ^^^^^^^^^^^^^^^

    warning: struct `StaticStrTupleStruct` is never constructed
       --> test_suite/tests/test_gen.rs:563:12
        |
    563 |     struct StaticStrTupleStruct<'a>(&'a str, &'static str);
        |            ^^^^^^^^^^^^^^^^^^^^

    warning: struct `StaticStrNewtypeStruct` is never constructed
       --> test_suite/tests/test_gen.rs:566:12
        |
    566 |     struct StaticStrNewtypeStruct(&'static str);
        |            ^^^^^^^^^^^^^^^^^^^^^^

    warning: enum `StaticStrEnum` is never used
       --> test_suite/tests/test_gen.rs:569:10
        |
    569 |     enum StaticStrEnum<'a> {
        |          ^^^^^^^^^^^^^

    warning: enum `AdjacentlyTaggedVoid` is never used
       --> test_suite/tests/test_gen.rs:652:10
        |
    652 |     enum AdjacentlyTaggedVoid {}
        |          ^^^^^^^^^^^^^^^^^^^^

    warning: struct `ImplicitlyBorrowedOption` is never constructed
       --> test_suite/tests/test_gen.rs:665:12
        |
    665 |     struct ImplicitlyBorrowedOption<'a> {
        |            ^^^^^^^^^^^^^^^^^^^^^^^^

    warning: enum `UntaggedNewtypeVariantWith` is never used
       --> test_suite/tests/test_gen.rs:672:10
        |
    672 |     enum UntaggedNewtypeVariantWith {
        |          ^^^^^^^^^^^^^^^^^^^^^^^^^^

    warning: struct `TransparentWith` is never constructed
       --> test_suite/tests/test_gen.rs:682:12
        |
    682 |     struct TransparentWith {
        |            ^^^^^^^^^^^^^^^

    warning: struct `FlattenSkipSerializing` is never constructed
       --> test_suite/tests/test_gen.rs:712:12
        |
    712 |     struct FlattenSkipSerializing<T> {
        |            ^^^^^^^^^^^^^^^^^^^^^^

    warning: struct `FlattenSkipSerializingIf` is never constructed
       --> test_suite/tests/test_gen.rs:719:12
        |
    719 |     struct FlattenSkipSerializingIf<T> {
        |            ^^^^^^^^^^^^^^^^^^^^^^^^

    warning: struct `FlattenSkipDeserializing` is never constructed
       --> test_suite/tests/test_gen.rs:725:12
        |
    725 |     struct FlattenSkipDeserializing<T> {
        |            ^^^^^^^^^^^^^^^^^^^^^^^^

    warning: enum `Message` is never used
       --> test_suite/tests/test_gen.rs:732:10
        |
    732 |     enum Message {
        |          ^^^^^^^

    warning: struct `MacroRules` is never constructed
       --> test_suite/tests/test_gen.rs:751:20
        |
    751 |             struct MacroRules<'a> {
        |                    ^^^^^^^^^^
    ...
    758 |     deriving!(&'a str);
        |     ------------------ in this macro invocation
        |
        = note: this warning originates in the macro `deriving` (in Nightly builds, run with -Z macro-backtrace for more info)

    warning: struct `BorrowLifetimeInsideMacro` is never constructed
       --> test_suite/tests/test_gen.rs:767:12
        |
    767 |     struct BorrowLifetimeInsideMacro<'a> {
        |            ^^^^^^^^^^^^^^^^^^^^^^^^^

    warning: struct `GenericUnitStruct` is never constructed
       --> test_suite/tests/test_gen.rs:782:12
        |
    782 |     struct GenericUnitStruct<const N: usize>;
        |            ^^^^^^^^^^^^^^^^^

    warning: enum `InternallyTagged` is never used
       --> test_suite/tests/test_gen.rs:869:6
        |
    869 | enum InternallyTagged {
        |      ^^^^^^^^^^^^^^^^

    warning: function `deserialize_generic` is never used
       --> test_suite/tests/test_gen.rs:880:4
        |
    880 | fn deserialize_generic<'de, T, D>(deserializer: D) -> StdResult<T, D::Error>
        |    ^^^^^^^^^^^^^^^^^^^

    warning: struct `Restricted` is never constructed
       --> test_suite/tests/test_gen.rs:643:20
        |
    643 |             struct Restricted {
        |                    ^^^^^^^^^^

    warning: struct `Test` is never constructed
      --> test_suite/tests/test_remote.rs:95:8
       |
    95 | struct Test {
       |        ^^^^

    warning: struct `UnitDef` is never constructed
       --> test_suite/tests/test_remote.rs:135:8
        |
    135 | struct UnitDef;
        |        ^^^^^^^

    warning: struct `PrimitivePubDef` is never constructed
       --> test_suite/tests/test_remote.rs:143:8
        |
    143 | struct PrimitivePubDef(u8);
        |        ^^^^^^^^^^^^^^^

    warning: struct `NewtypePubDef` is never constructed
       --> test_suite/tests/test_remote.rs:151:8
        |
    151 | struct NewtypePubDef(#[serde(with = "UnitDef")] remote::Unit);
        |        ^^^^^^^^^^^^^

    warning: struct `TuplePubDef` is never constructed
       --> test_suite/tests/test_remote.rs:162:8
        |
    162 | struct TuplePubDef(u8, #[serde(with = "UnitDef")] remote::Unit);
        |        ^^^^^^^^^^^

    warning: struct `StructPubDef` is never constructed
       --> test_suite/tests/test_remote.rs:177:8
        |
    177 | struct StructPubDef {
        |        ^^^^^^^^^^^^

    warning: struct `StructConcrete` is never constructed
       --> test_suite/tests/test_remote.rs:193:8
        |
    193 | struct StructConcrete {
        |        ^^^^^^^^^^^^^^

    warning: enum `EnumConcrete` is never used
       --> test_suite/tests/test_remote.rs:199:6
        |
    199 | enum EnumConcrete {
        |      ^^^^^^^^^^^^

    warning: enum `ErrorKind` is never used
       --> test_suite/tests/test_remote.rs:204:6
        |
    204 | enum ErrorKind {
        |      ^^^^^^^^^

    warning: enum `ErrorKindDef` is never used
       --> test_suite/tests/test_remote.rs:214:6
        |
    214 | enum ErrorKindDef {
        |      ^^^^^^^^^^^^

    warning: struct `PrimitivePub` is never constructed
      --> test_suite/tests/test_remote.rs:10:16
       |
    10 |     pub struct PrimitivePub(pub u8);
       |                ^^^^^^^^^^^^

    warning: struct `NewtypePub` is never constructed
      --> test_suite/tests/test_remote.rs:14:16
       |
    14 |     pub struct NewtypePub(pub Unit);
       |                ^^^^^^^^^^

    warning: struct `TuplePub` is never constructed
      --> test_suite/tests/test_remote.rs:18:16
       |
    18 |     pub struct TuplePub(pub u8, pub Unit);
       |                ^^^^^^^^

    warning: struct `StructPub` is never constructed
      --> test_suite/tests/test_remote.rs:25:16
       |
    25 |     pub struct StructPub {
       |                ^^^^^^^^^

    warning: enum `EnumGeneric` is never used
      --> test_suite/tests/test_remote.rs:89:14
       |
    89 |     pub enum EnumGeneric<T> {
       |              ^^^^^^^^^^^

    warning: struct `Tuple` is never constructed
      --> test_suite/tests/test_self.rs:44:12
       |
    44 |     struct Tuple(
       |            ^^^^^

    warning: associated items `ASSOC` and `assoc` are never used
      --> test_suite/tests/test_self.rs:52:15
       |
    51 |     impl Tuple {
       |     ---------- associated items in this implementation
    52 |         const ASSOC: usize = 1;
       |               ^^^^^
    53 |         const fn assoc() -> usize {
       |                  ^^^^^

    warning: enum `Enum` is never used
      --> test_suite/tests/test_self.rs:63:10
       |
    63 |     enum Enum {
       |          ^^^^

    warning: associated items `ASSOC` and `assoc` are never used
      --> test_suite/tests/test_self.rs:79:15
       |
    78 |     impl Enum {
       |     --------- associated items in this implementation
    79 |         const ASSOC: usize = 1;
       |               ^^^^^
    80 |         const fn assoc() -> usize {
       |                  ^^^^^

    warning: struct `Unit` is never constructed
      --> test_suite/no_std/src/main.rs:26:8
       |
    26 | struct Unit;
       |        ^^^^

    warning: struct `Newtype` is never constructed
      --> test_suite/no_std/src/main.rs:29:8
       |
    29 | struct Newtype(u8);
       |        ^^^^^^^

    warning: struct `Tuple` is never constructed
      --> test_suite/no_std/src/main.rs:32:8
       |
    32 | struct Tuple(u8, u8);
       |        ^^^^^

    warning: struct `Struct` is never constructed
      --> test_suite/no_std/src/main.rs:35:8
       |
    35 | struct Struct {
       |        ^^^^^^

    warning: enum `Enum` is never used
      --> test_suite/no_std/src/main.rs:40:6
       |
    40 | enum Enum {
       |      ^^^^
2024-07-06 19:26:29 -07:00
.github Cut test_suite from workspace members in old toolchain CI jobs 2024-07-06 13:25:55 -07:00
serde Release 1.0.204 2024-07-06 13:38:01 -07:00
serde_derive Release 1.0.204 2024-07-06 13:38:01 -07:00
serde_derive_internals Release serde_derive_internals 0.29.1 2024-05-15 00:35:14 -07:00
test_suite Work around test suite dead code warnings in nightly-2024-07-07 2024-07-06 19:26:29 -07:00
.gitignore Format in rfc style 2017-04-18 14:23:21 -07:00
Cargo.toml Fix workspace.dependencies default-features future compat warning 2024-01-26 13:36:03 -08:00
CONTRIBUTING.md Fix outdated test instructions in CONTRIBUTING.md 2021-06-12 13:38:40 -07:00
crates-io.md Fix missing close paren in crates-io.md 2024-06-06 23:19:04 -04:00
LICENSE-APACHE Remove appendix from LICENSE-APACHE 2022-12-30 22:32:44 +03:00
LICENSE-MIT Copyright/license headers 2018-11-24 15:53:09 -08:00
README.md Use shields.io's MSRV badges 2024-01-08 22:22:03 -05:00

Serde Build Status Latest Version serde msrv serde_derive msrv

Serde is a framework for serializing and deserializing Rust data structures efficiently and generically.


You may be looking for:

Serde in action

Click to show Cargo.toml. Run this code in the playground.
[dependencies]

# The core APIs, including the Serialize and Deserialize traits. Always
# required when using Serde. The "derive" feature is only required when
# using #[derive(Serialize, Deserialize)] to make Serde work with structs
# and enums defined in your crate.
serde = { version = "1.0", features = ["derive"] }

# Each data format lives in its own crate; the sample code below uses JSON
# but you may be using a different one.
serde_json = "1.0"

use serde::{Deserialize, Serialize};

#[derive(Serialize, Deserialize, Debug)]
struct Point {
    x: i32,
    y: i32,
}

fn main() {
    let point = Point { x: 1, y: 2 };

    // Convert the Point to a JSON string.
    let serialized = serde_json::to_string(&point).unwrap();

    // Prints serialized = {"x":1,"y":2}
    println!("serialized = {}", serialized);

    // Convert the JSON string back to a Point.
    let deserialized: Point = serde_json::from_str(&serialized).unwrap();

    // Prints deserialized = Point { x: 1, y: 2 }
    println!("deserialized = {:?}", deserialized);
}

Getting help

Serde is one of the most widely used Rust libraries so any place that Rustaceans congregate will be able to help you out. For chat, consider trying the #rust-questions or #rust-beginners channels of the unofficial community Discord (invite: https://discord.gg/rust-lang-community), the #rust-usage or #beginners channels of the official Rust Project Discord (invite: https://discord.gg/rust-lang), or the #general stream in Zulip. For asynchronous, consider the [rust] tag on StackOverflow, the /r/rust subreddit which has a pinned weekly easy questions post, or the Rust Discourse forum. It's acceptable to file a support issue in this repo but they tend not to get as many eyes as any of the above and may get closed without a response after some time.


License

Licensed under either of Apache License, Version 2.0 or MIT license at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in Serde by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.