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RPM build fix (reverted CI changes which will need to be un-reverted or made conditional) and vendor Rust dependencies to make builds much faster in any CI system.

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This commit is contained in:
Adam Ierymenko
2022-06-08 07:32:16 -04:00
parent 373ca30269
commit d5ca4e5f52
12611 changed files with 2898014 additions and 284 deletions
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# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
#
# When uploading crates to the registry Cargo will automatically
# "normalize" Cargo.toml files for maximal compatibility
# with all versions of Cargo and also rewrite `path` dependencies
# to registry (e.g., crates.io) dependencies.
#
# If you are reading this file be aware that the original Cargo.toml
# will likely look very different (and much more reasonable).
# See Cargo.toml.orig for the original contents.
[package]
rust-version = "1.13"
name = "serde"
version = "1.0.137"
authors = [
"Erick Tryzelaar <erick.tryzelaar@gmail.com>",
"David Tolnay <dtolnay@gmail.com>",
]
build = "build.rs"
include = [
"build.rs",
"src/**/*.rs",
"crates-io.md",
"README.md",
"LICENSE-APACHE",
"LICENSE-MIT",
]
description = "A generic serialization/deserialization framework"
homepage = "https://serde.rs"
documentation = "https://docs.serde.rs/serde/"
readme = "crates-io.md"
keywords = [
"serde",
"serialization",
"no_std",
]
categories = ["encoding"]
license = "MIT OR Apache-2.0"
repository = "https://github.com/serde-rs/serde"
[package.metadata.playground]
features = [
"derive",
"rc",
]
[package.metadata.docs.rs]
targets = ["x86_64-unknown-linux-gnu"]
[dependencies.serde_derive]
version = "=1.0.137"
optional = true
[dev-dependencies.serde_derive]
version = "1.0"
[features]
alloc = []
default = ["std"]
derive = ["serde_derive"]
rc = []
std = []
unstable = []

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Permission is hereby granted, free of charge, to any
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# Serde &emsp; [![Build Status]][actions] [![Latest Version]][crates.io] [![serde: rustc 1.13+]][Rust 1.13] [![serde_derive: rustc 1.31+]][Rust 1.31]
[Build Status]: https://img.shields.io/github/workflow/status/serde-rs/serde/CI/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_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 1.31]: 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.**
---
You may be looking for:
- [An overview of Serde](https://serde.rs/)
- [Data formats supported by Serde](https://serde.rs/#data-formats)
- [Setting up `#[derive(Serialize, Deserialize)]`](https://serde.rs/derive.html)
- [Examples](https://serde.rs/examples.html)
- [API documentation](https://docs.serde.rs/serde/)
- [Release notes](https://github.com/serde-rs/serde/releases)
## Serde in action
<details>
<summary>
Click to show Cargo.toml.
<a href="https://play.rust-lang.org/?edition=2018&gist=72755f28f99afc95e01d63174b28c1f5" target="_blank">Run this code in the playground.</a>
</summary>
```toml
[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"
```
</details>
<p></p>
```rust
use serde::{Serialize, Deserialize};
#[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][zulip] stream in Zulip. For
asynchronous, consider the [\[rust\] tag on StackOverflow][stackoverflow], the
[/r/rust] subreddit which has a pinned weekly easy questions post, or the Rust
[Discourse forum][discourse]. 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.
[#rust-questions]: https://discord.com/channels/273534239310479360/274215136414400513
[#rust-beginners]: https://discord.com/channels/273534239310479360/273541522815713281
[#rust-usage]: https://discord.com/channels/442252698964721669/443150878111694848
[#beginners]: https://discord.com/channels/442252698964721669/448238009733742612
[zulip]: https://rust-lang.zulipchat.com/#narrow/stream/122651-general
[stackoverflow]: https://stackoverflow.com/questions/tagged/rust
[/r/rust]: https://www.reddit.com/r/rust
[discourse]: https://users.rust-lang.org
<br>
#### License
<sup>
Licensed under either of <a href="LICENSE-APACHE">Apache License, Version
2.0</a> or <a href="LICENSE-MIT">MIT license</a> at your option.
</sup>
<br>
<sub>
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.
</sub>

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use std::env;
use std::process::Command;
use std::str::{self, FromStr};
// The rustc-cfg strings below are *not* public API. Please let us know by
// opening a GitHub issue if your build environment requires some way to enable
// these cfgs other than by executing our build script.
fn main() {
let minor = match rustc_minor_version() {
Some(minor) => minor,
None => return,
};
let target = env::var("TARGET").unwrap();
let emscripten = target == "asmjs-unknown-emscripten" || target == "wasm32-unknown-emscripten";
// std::collections::Bound was stabilized in Rust 1.17
// but it was moved to core::ops later in Rust 1.26:
// https://doc.rust-lang.org/core/ops/enum.Bound.html
if minor < 26 {
println!("cargo:rustc-cfg=no_ops_bound");
if minor < 17 {
println!("cargo:rustc-cfg=no_collections_bound");
}
}
// core::cmp::Reverse stabilized in Rust 1.19:
// https://doc.rust-lang.org/stable/core/cmp/struct.Reverse.html
if minor < 19 {
println!("cargo:rustc-cfg=no_core_reverse");
}
// CString::into_boxed_c_str and PathBuf::into_boxed_path stabilized in Rust 1.20:
// https://doc.rust-lang.org/std/ffi/struct.CString.html#method.into_boxed_c_str
// https://doc.rust-lang.org/std/path/struct.PathBuf.html#method.into_boxed_path
if minor < 20 {
println!("cargo:rustc-cfg=no_de_boxed_c_str");
println!("cargo:rustc-cfg=no_de_boxed_path");
}
// From<Box<T>> for Rc<T> / Arc<T> stabilized in Rust 1.21:
// https://doc.rust-lang.org/std/rc/struct.Rc.html#impl-From<Box<T>>
// https://doc.rust-lang.org/std/sync/struct.Arc.html#impl-From<Box<T>>
if minor < 21 {
println!("cargo:rustc-cfg=no_de_rc_dst");
}
// Duration available in core since Rust 1.25:
// https://blog.rust-lang.org/2018/03/29/Rust-1.25.html#library-stabilizations
if minor < 25 {
println!("cargo:rustc-cfg=no_core_duration");
}
// 128-bit integers stabilized in Rust 1.26:
// https://blog.rust-lang.org/2018/05/10/Rust-1.26.html
//
// Disabled on Emscripten targets before Rust 1.40 since
// Emscripten did not support 128-bit integers until Rust 1.40
// (https://github.com/rust-lang/rust/pull/65251)
if minor < 26 || emscripten && minor < 40 {
println!("cargo:rustc-cfg=no_integer128");
}
// Inclusive ranges methods stabilized in Rust 1.27:
// https://github.com/rust-lang/rust/pull/50758
// Also Iterator::try_for_each:
// https://blog.rust-lang.org/2018/06/21/Rust-1.27.html#library-stabilizations
if minor < 27 {
println!("cargo:rustc-cfg=no_range_inclusive");
println!("cargo:rustc-cfg=no_iterator_try_fold");
}
// Non-zero integers stabilized in Rust 1.28:
// https://blog.rust-lang.org/2018/08/02/Rust-1.28.html#library-stabilizations
if minor < 28 {
println!("cargo:rustc-cfg=no_num_nonzero");
}
// Current minimum supported version of serde_derive crate is Rust 1.31.
if minor < 31 {
println!("cargo:rustc-cfg=no_serde_derive");
}
// TryFrom, Atomic types, non-zero signed integers, and SystemTime::checked_add
// stabilized in Rust 1.34:
// https://blog.rust-lang.org/2019/04/11/Rust-1.34.0.html#tryfrom-and-tryinto
// https://blog.rust-lang.org/2019/04/11/Rust-1.34.0.html#library-stabilizations
if minor < 34 {
println!("cargo:rustc-cfg=no_core_try_from");
println!("cargo:rustc-cfg=no_num_nonzero_signed");
println!("cargo:rustc-cfg=no_systemtime_checked_add");
}
// Whitelist of archs that support std::sync::atomic module. Ideally we
// would use #[cfg(target_has_atomic = "...")] but it is not stable yet.
// Instead this is based on rustc's compiler/rustc_target/src/spec/*.rs.
let has_atomic64 = target.starts_with("x86_64")
|| target.starts_with("i686")
|| target.starts_with("aarch64")
|| target.starts_with("powerpc64")
|| target.starts_with("sparc64")
|| target.starts_with("mips64el")
|| target.starts_with("riscv64");
let has_atomic32 = has_atomic64 || emscripten;
if minor < 34 || !has_atomic64 {
println!("cargo:rustc-cfg=no_std_atomic64");
}
if minor < 34 || !has_atomic32 {
println!("cargo:rustc-cfg=no_std_atomic");
}
}
fn rustc_minor_version() -> Option<u32> {
let rustc = match env::var_os("RUSTC") {
Some(rustc) => rustc,
None => return None,
};
let output = match Command::new(rustc).arg("--version").output() {
Ok(output) => output,
Err(_) => return None,
};
let version = match str::from_utf8(&output.stdout) {
Ok(version) => version,
Err(_) => return None,
};
let mut pieces = version.split('.');
if pieces.next() != Some("rustc 1") {
return None;
}
let next = match pieces.next() {
Some(next) => next,
None => return None,
};
u32::from_str(next).ok()
}

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<!-- Serde readme rendered on crates.io -->
**Serde is a framework for *ser*ializing and *de*serializing Rust data structures efficiently and generically.**
---
You may be looking for:
- [An overview of Serde](https://serde.rs/)
- [Data formats supported by Serde](https://serde.rs/#data-formats)
- [Setting up `#[derive(Serialize, Deserialize)]`](https://serde.rs/derive.html)
- [Examples](https://serde.rs/examples.html)
- [API documentation](https://docs.serde.rs/serde/)
- [Release notes](https://github.com/serde-rs/serde/releases)
## Serde in action
```rust
use serde::{Serialize, Deserialize};
#[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][zulip] stream in Zulip. For
asynchronous, consider the [\[rust\] tag on StackOverflow][stackoverflow], the
[/r/rust] subreddit which has a pinned weekly easy questions post, or the Rust
[Discourse forum][discourse]. 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.
[#rust-questions]: https://discord.com/channels/273534239310479360/274215136414400513
[#rust-beginners]: https://discord.com/channels/273534239310479360/273541522815713281
[#rust-usage]: https://discord.com/channels/442252698964721669/443150878111694848
[#beginners]: https://discord.com/channels/442252698964721669/448238009733742612
[zulip]: https://rust-lang.zulipchat.com/#narrow/stream/122651-general
[stackoverflow]: https://stackoverflow.com/questions/tagged/rust
[/r/rust]: https://www.reddit.com/r/rust
[discourse]: https://users.rust-lang.org

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use lib::fmt::{self, Write};
use lib::str;
pub struct Buf<'a> {
bytes: &'a mut [u8],
offset: usize,
}
impl<'a> Buf<'a> {
pub fn new(bytes: &'a mut [u8]) -> Self {
Buf { bytes, offset: 0 }
}
pub fn as_str(&self) -> &str {
let slice = &self.bytes[..self.offset];
unsafe { str::from_utf8_unchecked(slice) }
}
}
impl<'a> Write for Buf<'a> {
fn write_str(&mut self, s: &str) -> fmt::Result {
if self.offset + s.len() > self.bytes.len() {
Err(fmt::Error)
} else {
self.bytes[self.offset..self.offset + s.len()].copy_from_slice(s.as_bytes());
self.offset += s.len();
Ok(())
}
}
}

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use lib::*;
use de::{
Deserialize, Deserializer, EnumAccess, Error, MapAccess, SeqAccess, VariantAccess, Visitor,
};
/// An efficient way of discarding data from a deserializer.
///
/// Think of this like `serde_json::Value` in that it can be deserialized from
/// any type, except that it does not store any information about the data that
/// gets deserialized.
///
/// ```edition2018
/// use std::fmt;
/// use std::marker::PhantomData;
///
/// use serde::de::{
/// self, Deserialize, DeserializeSeed, Deserializer, IgnoredAny, SeqAccess, Visitor,
/// };
///
/// /// A seed that can be used to deserialize only the `n`th element of a sequence
/// /// while efficiently discarding elements of any type before or after index `n`.
/// ///
/// /// For example to deserialize only the element at index 3:
/// ///
/// /// ```
/// /// NthElement::new(3).deserialize(deserializer)
/// /// ```
/// pub struct NthElement<T> {
/// n: usize,
/// marker: PhantomData<T>,
/// }
///
/// impl<T> NthElement<T> {
/// pub fn new(n: usize) -> Self {
/// NthElement {
/// n: n,
/// marker: PhantomData,
/// }
/// }
/// }
///
/// impl<'de, T> Visitor<'de> for NthElement<T>
/// where
/// T: Deserialize<'de>,
/// {
/// type Value = T;
///
/// fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
/// write!(
/// formatter,
/// "a sequence in which we care about element {}",
/// self.n
/// )
/// }
///
/// fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>
/// where
/// A: SeqAccess<'de>,
/// {
/// // Skip over the first `n` elements.
/// for i in 0..self.n {
/// // It is an error if the sequence ends before we get to element `n`.
/// if seq.next_element::<IgnoredAny>()?.is_none() {
/// return Err(de::Error::invalid_length(i, &self));
/// }
/// }
///
/// // Deserialize the one we care about.
/// let nth = match seq.next_element()? {
/// Some(nth) => nth,
/// None => {
/// return Err(de::Error::invalid_length(self.n, &self));
/// }
/// };
///
/// // Skip over any remaining elements in the sequence after `n`.
/// while let Some(IgnoredAny) = seq.next_element()? {
/// // ignore
/// }
///
/// Ok(nth)
/// }
/// }
///
/// impl<'de, T> DeserializeSeed<'de> for NthElement<T>
/// where
/// T: Deserialize<'de>,
/// {
/// type Value = T;
///
/// fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
/// where
/// D: Deserializer<'de>,
/// {
/// deserializer.deserialize_seq(self)
/// }
/// }
///
/// # fn example<'de, D>(deserializer: D) -> Result<(), D::Error>
/// # where
/// # D: Deserializer<'de>,
/// # {
/// // Deserialize only the sequence element at index 3 from this deserializer.
/// // The element at index 3 is required to be a string. Elements before and
/// // after index 3 are allowed to be of any type.
/// let s: String = NthElement::new(3).deserialize(deserializer)?;
/// # Ok(())
/// # }
/// ```
#[derive(Copy, Clone, Debug, Default)]
pub struct IgnoredAny;
impl<'de> Visitor<'de> for IgnoredAny {
type Value = IgnoredAny;
fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
formatter.write_str("anything at all")
}
#[inline]
fn visit_bool<E>(self, x: bool) -> Result<Self::Value, E> {
let _ = x;
Ok(IgnoredAny)
}
#[inline]
fn visit_i64<E>(self, x: i64) -> Result<Self::Value, E> {
let _ = x;
Ok(IgnoredAny)
}
serde_if_integer128! {
#[inline]
fn visit_i128<E>(self, x: i128) -> Result<Self::Value, E> {
let _ = x;
Ok(IgnoredAny)
}
}
#[inline]
fn visit_u64<E>(self, x: u64) -> Result<Self::Value, E> {
let _ = x;
Ok(IgnoredAny)
}
serde_if_integer128! {
#[inline]
fn visit_u128<E>(self, x: u128) -> Result<Self::Value, E> {
let _ = x;
Ok(IgnoredAny)
}
}
#[inline]
fn visit_f64<E>(self, x: f64) -> Result<Self::Value, E> {
let _ = x;
Ok(IgnoredAny)
}
#[inline]
fn visit_str<E>(self, s: &str) -> Result<Self::Value, E>
where
E: Error,
{
let _ = s;
Ok(IgnoredAny)
}
#[inline]
fn visit_none<E>(self) -> Result<Self::Value, E> {
Ok(IgnoredAny)
}
#[inline]
fn visit_some<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
where
D: Deserializer<'de>,
{
IgnoredAny::deserialize(deserializer)
}
#[inline]
fn visit_newtype_struct<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
where
D: Deserializer<'de>,
{
IgnoredAny::deserialize(deserializer)
}
#[inline]
fn visit_unit<E>(self) -> Result<Self::Value, E> {
Ok(IgnoredAny)
}
#[inline]
fn visit_seq<A>(self, mut seq: A) -> Result<Self::Value, A::Error>
where
A: SeqAccess<'de>,
{
while let Some(IgnoredAny) = try!(seq.next_element()) {
// Gobble
}
Ok(IgnoredAny)
}
#[inline]
fn visit_map<A>(self, mut map: A) -> Result<Self::Value, A::Error>
where
A: MapAccess<'de>,
{
while let Some((IgnoredAny, IgnoredAny)) = try!(map.next_entry()) {
// Gobble
}
Ok(IgnoredAny)
}
#[inline]
fn visit_bytes<E>(self, bytes: &[u8]) -> Result<Self::Value, E>
where
E: Error,
{
let _ = bytes;
Ok(IgnoredAny)
}
fn visit_enum<A>(self, data: A) -> Result<Self::Value, A::Error>
where
A: EnumAccess<'de>,
{
data.variant::<IgnoredAny>()?.1.newtype_variant()
}
}
impl<'de> Deserialize<'de> for IgnoredAny {
#[inline]
fn deserialize<D>(deserializer: D) -> Result<IgnoredAny, D::Error>
where
D: Deserializer<'de>,
{
deserializer.deserialize_ignored_any(IgnoredAny)
}
}

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use de::{Deserialize, DeserializeSeed, Deserializer};
/// A DeserializeSeed helper for implementing deserialize_in_place Visitors.
///
/// Wraps a mutable reference and calls deserialize_in_place on it.
pub struct InPlaceSeed<'a, T: 'a>(pub &'a mut T);
impl<'a, 'de, T> DeserializeSeed<'de> for InPlaceSeed<'a, T>
where
T: Deserialize<'de>,
{
type Value = ();
fn deserialize<D>(self, deserializer: D) -> Result<Self::Value, D::Error>
where
D: Deserializer<'de>,
{
T::deserialize_in_place(deserializer, self.0)
}
}

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use lib::*;
const TAG_CONT: u8 = 0b1000_0000;
const TAG_TWO_B: u8 = 0b1100_0000;
const TAG_THREE_B: u8 = 0b1110_0000;
const TAG_FOUR_B: u8 = 0b1111_0000;
const MAX_ONE_B: u32 = 0x80;
const MAX_TWO_B: u32 = 0x800;
const MAX_THREE_B: u32 = 0x10000;
#[inline]
pub fn encode(c: char) -> Encode {
let code = c as u32;
let mut buf = [0; 4];
let pos = if code < MAX_ONE_B {
buf[3] = code as u8;
3
} else if code < MAX_TWO_B {
buf[2] = (code >> 6 & 0x1F) as u8 | TAG_TWO_B;
buf[3] = (code & 0x3F) as u8 | TAG_CONT;
2
} else if code < MAX_THREE_B {
buf[1] = (code >> 12 & 0x0F) as u8 | TAG_THREE_B;
buf[2] = (code >> 6 & 0x3F) as u8 | TAG_CONT;
buf[3] = (code & 0x3F) as u8 | TAG_CONT;
1
} else {
buf[0] = (code >> 18 & 0x07) as u8 | TAG_FOUR_B;
buf[1] = (code >> 12 & 0x3F) as u8 | TAG_CONT;
buf[2] = (code >> 6 & 0x3F) as u8 | TAG_CONT;
buf[3] = (code & 0x3F) as u8 | TAG_CONT;
0
};
Encode { buf: buf, pos: pos }
}
pub struct Encode {
buf: [u8; 4],
pos: usize,
}
impl Encode {
pub fn as_str(&self) -> &str {
str::from_utf8(&self.buf[self.pos..]).unwrap()
}
}

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/// Conditional compilation depending on whether Serde is built with support for
/// 128-bit integers.
///
/// Data formats that wish to support Rust compiler versions older than 1.26
/// (or targets that lack 128-bit integers) may place the i128 / u128 methods
/// of their Serializer and Deserializer behind this macro.
///
/// Data formats that require a minimum Rust compiler version of at least 1.26,
/// or do not target platforms that lack 128-bit integers, do not need to
/// bother with this macro and may assume support for 128-bit integers.
///
/// ```edition2018
/// # use serde::__private::doc::Error;
/// #
/// # struct MySerializer;
/// #
/// use serde::{serde_if_integer128, Serializer};
///
/// impl Serializer for MySerializer {
/// type Ok = ();
/// type Error = Error;
///
/// fn serialize_i64(self, v: i64) -> Result<Self::Ok, Self::Error> {
/// /* ... */
/// # unimplemented!()
/// }
///
/// /* ... */
///
/// serde_if_integer128! {
/// fn serialize_i128(self, v: i128) -> Result<Self::Ok, Self::Error> {
/// /* ... */
/// # unimplemented!()
/// }
///
/// fn serialize_u128(self, v: u128) -> Result<Self::Ok, Self::Error> {
/// /* ... */
/// # unimplemented!()
/// }
/// }
/// #
/// # serde::__serialize_unimplemented! {
/// # bool i8 i16 i32 u8 u16 u32 u64 f32 f64 char str bytes none some
/// # unit unit_struct unit_variant newtype_struct newtype_variant seq
/// # tuple tuple_struct tuple_variant map struct struct_variant
/// # }
/// }
/// ```
///
/// When Serde is built with support for 128-bit integers, this macro expands
/// transparently into just the input tokens.
///
/// ```edition2018
/// macro_rules! serde_if_integer128 {
/// ($($tt:tt)*) => {
/// $($tt)*
/// };
/// }
/// ```
///
/// When built without support for 128-bit integers, this macro expands to
/// nothing.
///
/// ```edition2018
/// macro_rules! serde_if_integer128 {
/// ($($tt:tt)*) => {};
/// }
/// ```
#[cfg(not(no_integer128))]
#[macro_export]
macro_rules! serde_if_integer128 {
($($tt:tt)*) => {
$($tt)*
};
}
#[cfg(no_integer128)]
#[macro_export]
#[doc(hidden)]
macro_rules! serde_if_integer128 {
($($tt:tt)*) => {};
}

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//! # Serde
//!
//! Serde is a framework for ***ser***ializing and ***de***serializing Rust data
//! structures efficiently and generically.
//!
//! The Serde ecosystem consists of data structures that know how to serialize
//! and deserialize themselves along with data formats that know how to
//! serialize and deserialize other things. Serde provides the layer by which
//! these two groups interact with each other, allowing any supported data
//! structure to be serialized and deserialized using any supported data format.
//!
//! See the Serde website <https://serde.rs/> for additional documentation and
//! usage examples.
//!
//! ## Design
//!
//! Where many other languages rely on runtime reflection for serializing data,
//! Serde is instead built on Rust's powerful trait system. A data structure
//! that knows how to serialize and deserialize itself is one that implements
//! Serde's `Serialize` and `Deserialize` traits (or uses Serde's derive
//! attribute to automatically generate implementations at compile time). This
//! avoids any overhead of reflection or runtime type information. In fact in
//! many situations the interaction between data structure and data format can
//! be completely optimized away by the Rust compiler, leaving Serde
//! serialization to perform the same speed as a handwritten serializer for the
//! specific selection of data structure and data format.
//!
//! ## Data formats
//!
//! The following is a partial list of data formats that have been implemented
//! for Serde by the community.
//!
//! - [JSON], the ubiquitous JavaScript Object Notation used by many HTTP APIs.
//! - [Bincode], a compact binary format
//! used for IPC within the Servo rendering engine.
//! - [CBOR], a Concise Binary Object Representation designed for small message
//! size without the need for version negotiation.
//! - [YAML], a self-proclaimed human-friendly configuration language that ain't
//! markup language.
//! - [MessagePack], an efficient binary format that resembles a compact JSON.
//! - [TOML], a minimal configuration format used by [Cargo].
//! - [Pickle], a format common in the Python world.
//! - [RON], a Rusty Object Notation.
//! - [BSON], the data storage and network transfer format used by MongoDB.
//! - [Avro], a binary format used within Apache Hadoop, with support for schema
//! definition.
//! - [JSON5], a superset of JSON including some productions from ES5.
//! - [Postcard], a no\_std and embedded-systems friendly compact binary format.
//! - [URL] query strings, in the x-www-form-urlencoded format.
//! - [Envy], a way to deserialize environment variables into Rust structs.
//! *(deserialization only)*
//! - [Envy Store], a way to deserialize [AWS Parameter Store] parameters into
//! Rust structs. *(deserialization only)*
//! - [S-expressions], the textual representation of code and data used by the
//! Lisp language family.
//! - [D-Bus]'s binary wire format.
//! - [FlexBuffers], the schemaless cousin of Google's FlatBuffers zero-copy serialization format.
//! - [DynamoDB Items], the format used by [rusoto_dynamodb] to transfer data to
//! and from DynamoDB.
//!
//! [JSON]: https://github.com/serde-rs/json
//! [Bincode]: https://github.com/bincode-org/bincode
//! [CBOR]: https://github.com/enarx/ciborium
//! [YAML]: https://github.com/dtolnay/serde-yaml
//! [MessagePack]: https://github.com/3Hren/msgpack-rust
//! [TOML]: https://github.com/alexcrichton/toml-rs
//! [Pickle]: https://github.com/birkenfeld/serde-pickle
//! [RON]: https://github.com/ron-rs/ron
//! [BSON]: https://github.com/mongodb/bson-rust
//! [Avro]: https://github.com/flavray/avro-rs
//! [JSON5]: https://github.com/callum-oakley/json5-rs
//! [Postcard]: https://github.com/jamesmunns/postcard
//! [URL]: https://docs.rs/serde_qs
//! [Envy]: https://github.com/softprops/envy
//! [Envy Store]: https://github.com/softprops/envy-store
//! [Cargo]: https://doc.rust-lang.org/cargo/reference/manifest.html
//! [AWS Parameter Store]: https://docs.aws.amazon.com/systems-manager/latest/userguide/systems-manager-parameter-store.html
//! [S-expressions]: https://github.com/rotty/lexpr-rs
//! [D-Bus]: https://docs.rs/zvariant
//! [FlexBuffers]: https://github.com/google/flatbuffers/tree/master/rust/flexbuffers
//! [DynamoDB Items]: https://docs.rs/serde_dynamo
//! [rusoto_dynamodb]: https://docs.rs/rusoto_dynamodb
////////////////////////////////////////////////////////////////////////////////
// Serde types in rustdoc of other crates get linked to here.
#![doc(html_root_url = "https://docs.rs/serde/1.0.137")]
// 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
// discussion of these features please refer to this issue:
//
// https://github.com/serde-rs/serde/issues/812
#![cfg_attr(feature = "unstable", feature(never_type))]
#![allow(unknown_lints, bare_trait_objects, deprecated)]
#![cfg_attr(feature = "cargo-clippy", allow(renamed_and_removed_lints))]
// Ignored clippy and clippy_pedantic lints
#![cfg_attr(
feature = "cargo-clippy",
allow(
// clippy bug: https://github.com/rust-lang/rust-clippy/issues/5704
unnested_or_patterns,
// clippy bug: https://github.com/rust-lang/rust-clippy/issues/7768
semicolon_if_nothing_returned,
// not available in our oldest supported compiler
empty_enum,
type_repetition_in_bounds, // https://github.com/rust-lang/rust-clippy/issues/8772
// integer and float ser/de requires these sorts of casts
cast_possible_truncation,
cast_possible_wrap,
cast_sign_loss,
// things are often more readable this way
cast_lossless,
module_name_repetitions,
option_if_let_else,
single_match_else,
type_complexity,
use_self,
zero_prefixed_literal,
// correctly used
enum_glob_use,
let_underscore_drop,
map_err_ignore,
result_unit_err,
wildcard_imports,
// not practical
needless_pass_by_value,
similar_names,
too_many_lines,
// preference
doc_markdown,
unseparated_literal_suffix,
// false positive
needless_doctest_main,
// noisy
missing_errors_doc,
must_use_candidate,
)
)]
// Rustc lints.
#![deny(missing_docs, unused_imports)]
////////////////////////////////////////////////////////////////////////////////
#[cfg(feature = "alloc")]
extern crate alloc;
/// A facade around all the types we need from the `std`, `core`, and `alloc`
/// crates. This avoids elaborate import wrangling having to happen in every
/// module.
mod lib {
mod core {
#[cfg(not(feature = "std"))]
pub use core::*;
#[cfg(feature = "std")]
pub use std::*;
}
pub use self::core::{cmp, iter, mem, num, ptr, slice, str};
pub use self::core::{f32, f64};
pub use self::core::{i16, i32, i64, i8, isize};
pub use self::core::{u16, u32, u64, u8, usize};
pub use self::core::cell::{Cell, RefCell};
pub use self::core::clone::{self, Clone};
pub use self::core::convert::{self, From, Into};
pub use self::core::default::{self, Default};
pub use self::core::fmt::{self, Debug, Display};
pub use self::core::marker::{self, PhantomData};
pub use self::core::num::Wrapping;
pub use self::core::ops::Range;
pub use self::core::option::{self, Option};
pub use self::core::result::{self, Result};
#[cfg(all(feature = "alloc", not(feature = "std")))]
pub use alloc::borrow::{Cow, ToOwned};
#[cfg(feature = "std")]
pub use std::borrow::{Cow, ToOwned};
#[cfg(all(feature = "alloc", not(feature = "std")))]
pub use alloc::string::{String, ToString};
#[cfg(feature = "std")]
pub use std::string::{String, ToString};
#[cfg(all(feature = "alloc", not(feature = "std")))]
pub use alloc::vec::Vec;
#[cfg(feature = "std")]
pub use std::vec::Vec;
#[cfg(all(feature = "alloc", not(feature = "std")))]
pub use alloc::boxed::Box;
#[cfg(feature = "std")]
pub use std::boxed::Box;
#[cfg(all(feature = "rc", feature = "alloc", not(feature = "std")))]
pub use alloc::rc::{Rc, Weak as RcWeak};
#[cfg(all(feature = "rc", feature = "std"))]
pub use std::rc::{Rc, Weak as RcWeak};
#[cfg(all(feature = "rc", feature = "alloc", not(feature = "std")))]
pub use alloc::sync::{Arc, Weak as ArcWeak};
#[cfg(all(feature = "rc", feature = "std"))]
pub use std::sync::{Arc, Weak as ArcWeak};
#[cfg(all(feature = "alloc", not(feature = "std")))]
pub use alloc::collections::{BTreeMap, BTreeSet, BinaryHeap, LinkedList, VecDeque};
#[cfg(feature = "std")]
pub use std::collections::{BTreeMap, BTreeSet, BinaryHeap, LinkedList, VecDeque};
#[cfg(feature = "std")]
pub use std::{error, net};
#[cfg(feature = "std")]
pub use std::collections::{HashMap, HashSet};
#[cfg(feature = "std")]
pub use std::ffi::{CStr, CString, OsStr, OsString};
#[cfg(feature = "std")]
pub use std::hash::{BuildHasher, Hash};
#[cfg(feature = "std")]
pub use std::io::Write;
#[cfg(feature = "std")]
pub use std::path::{Path, PathBuf};
#[cfg(feature = "std")]
pub use std::sync::{Mutex, RwLock};
#[cfg(feature = "std")]
pub use std::time::{SystemTime, UNIX_EPOCH};
#[cfg(all(feature = "std", not(no_collections_bound), no_ops_bound))]
pub use std::collections::Bound;
#[cfg(not(no_core_reverse))]
pub use self::core::cmp::Reverse;
#[cfg(not(no_ops_bound))]
pub use self::core::ops::Bound;
#[cfg(not(no_range_inclusive))]
pub use self::core::ops::RangeInclusive;
#[cfg(all(feature = "std", not(no_std_atomic)))]
pub use std::sync::atomic::{
AtomicBool, AtomicI16, AtomicI32, AtomicI8, AtomicIsize, AtomicU16, AtomicU32, AtomicU8,
AtomicUsize, Ordering,
};
#[cfg(all(feature = "std", not(no_std_atomic64)))]
pub use std::sync::atomic::{AtomicI64, AtomicU64};
#[cfg(any(feature = "std", not(no_core_duration)))]
pub use self::core::time::Duration;
}
////////////////////////////////////////////////////////////////////////////////
#[macro_use]
mod macros;
#[macro_use]
mod integer128;
pub mod de;
pub mod ser;
#[doc(inline)]
pub use de::{Deserialize, Deserializer};
#[doc(inline)]
pub use ser::{Serialize, Serializer};
// Used by generated code and doc tests. Not public API.
#[doc(hidden)]
#[path = "private/mod.rs"]
pub mod __private;
#[allow(unused_imports)]
use self::__private as export;
#[allow(unused_imports)]
use self::__private as private;
#[path = "de/seed.rs"]
mod seed;
#[cfg(not(feature = "std"))]
mod std_error;
// Re-export #[derive(Serialize, Deserialize)].
//
// The reason re-exporting is not enabled by default is that disabling it would
// be annoying for crates that provide handwritten impls or data formats. They
// would need to disable default features and then explicitly re-enable std.
#[cfg(feature = "serde_derive")]
#[allow(unused_imports)]
#[macro_use]
extern crate serde_derive;
#[cfg(feature = "serde_derive")]
#[doc(hidden)]
pub use serde_derive::*;
#[cfg(all(not(no_serde_derive), any(feature = "std", feature = "alloc")))]
mod actually_private {
pub struct T;
}

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// Super explicit first paragraph because this shows up at the top level and
// trips up people who are just looking for basic Serialize / Deserialize
// documentation.
//
/// Helper macro when implementing the `Deserializer` part of a new data format
/// for Serde.
///
/// Some [`Deserializer`] implementations for self-describing formats do not
/// care what hint the [`Visitor`] gives them, they just want to blindly call
/// the [`Visitor`] method corresponding to the data they can tell is in the
/// input. This requires repetitive implementations of all the [`Deserializer`]
/// trait methods.
///
/// ```edition2018
/// # use serde::forward_to_deserialize_any;
/// # use serde::de::{value, Deserializer, Visitor};
/// #
/// # struct MyDeserializer;
/// #
/// # impl<'de> Deserializer<'de> for MyDeserializer {
/// # type Error = value::Error;
/// #
/// # fn deserialize_any<V>(self, _: V) -> Result<V::Value, Self::Error>
/// # where
/// # V: Visitor<'de>,
/// # {
/// # unimplemented!()
/// # }
/// #
/// #[inline]
/// fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error>
/// where
/// V: Visitor<'de>,
/// {
/// self.deserialize_any(visitor)
/// }
/// #
/// # forward_to_deserialize_any! {
/// # i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
/// # bytes byte_buf option unit unit_struct newtype_struct seq tuple
/// # tuple_struct map struct enum identifier ignored_any
/// # }
/// # }
/// ```
///
/// The `forward_to_deserialize_any!` macro implements these simple forwarding
/// methods so that they forward directly to [`Deserializer::deserialize_any`].
/// You can choose which methods to forward.
///
/// ```edition2018
/// # use serde::forward_to_deserialize_any;
/// # use serde::de::{value, Deserializer, Visitor};
/// #
/// # struct MyDeserializer;
/// #
/// impl<'de> Deserializer<'de> for MyDeserializer {
/// # type Error = value::Error;
/// #
/// fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error>
/// where
/// V: Visitor<'de>,
/// {
/// /* ... */
/// # let _ = visitor;
/// # unimplemented!()
/// }
///
/// forward_to_deserialize_any! {
/// bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
/// bytes byte_buf option unit unit_struct newtype_struct seq tuple
/// tuple_struct map struct enum identifier ignored_any
/// }
/// }
/// ```
///
/// The macro assumes the convention that your `Deserializer` lifetime parameter
/// is called `'de` and that the `Visitor` type parameters on each method are
/// called `V`. A different type parameter and a different lifetime can be
/// specified explicitly if necessary.
///
/// ```edition2018
/// # use std::marker::PhantomData;
/// #
/// # use serde::forward_to_deserialize_any;
/// # use serde::de::{value, Deserializer, Visitor};
/// #
/// # struct MyDeserializer<V>(PhantomData<V>);
/// #
/// # impl<'q, V> Deserializer<'q> for MyDeserializer<V> {
/// # type Error = value::Error;
/// #
/// # fn deserialize_any<W>(self, visitor: W) -> Result<W::Value, Self::Error>
/// # where
/// # W: Visitor<'q>,
/// # {
/// # unimplemented!()
/// # }
/// #
/// forward_to_deserialize_any! {
/// <W: Visitor<'q>>
/// bool i8 i16 i32 i64 i128 u8 u16 u32 u64 u128 f32 f64 char str string
/// bytes byte_buf option unit unit_struct newtype_struct seq tuple
/// tuple_struct map struct enum identifier ignored_any
/// }
/// # }
/// ```
///
/// [`Deserializer`]: trait.Deserializer.html
/// [`Visitor`]: de/trait.Visitor.html
/// [`Deserializer::deserialize_any`]: trait.Deserializer.html#tymethod.deserialize_any
#[macro_export(local_inner_macros)]
macro_rules! forward_to_deserialize_any {
(<$visitor:ident: Visitor<$lifetime:tt>> $($func:ident)*) => {
$(forward_to_deserialize_any_helper!{$func<$lifetime, $visitor>})*
};
// This case must be after the previous one.
($($func:ident)*) => {
$(forward_to_deserialize_any_helper!{$func<'de, V>})*
};
}
#[doc(hidden)]
#[macro_export]
macro_rules! forward_to_deserialize_any_method {
($func:ident<$l:tt, $v:ident>($($arg:ident : $ty:ty),*)) => {
#[inline]
fn $func<$v>(self, $($arg: $ty,)* visitor: $v) -> $crate::__private::Result<$v::Value, Self::Error>
where
$v: $crate::de::Visitor<$l>,
{
$(
let _ = $arg;
)*
self.deserialize_any(visitor)
}
};
}
#[doc(hidden)]
#[macro_export(local_inner_macros)]
macro_rules! forward_to_deserialize_any_helper {
(bool<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_bool<$l, $v>()}
};
(i8<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_i8<$l, $v>()}
};
(i16<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_i16<$l, $v>()}
};
(i32<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_i32<$l, $v>()}
};
(i64<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_i64<$l, $v>()}
};
(i128<$l:tt, $v:ident>) => {
serde_if_integer128! {
forward_to_deserialize_any_method!{deserialize_i128<$l, $v>()}
}
};
(u8<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_u8<$l, $v>()}
};
(u16<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_u16<$l, $v>()}
};
(u32<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_u32<$l, $v>()}
};
(u64<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_u64<$l, $v>()}
};
(u128<$l:tt, $v:ident>) => {
serde_if_integer128! {
forward_to_deserialize_any_method!{deserialize_u128<$l, $v>()}
}
};
(f32<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_f32<$l, $v>()}
};
(f64<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_f64<$l, $v>()}
};
(char<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_char<$l, $v>()}
};
(str<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_str<$l, $v>()}
};
(string<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_string<$l, $v>()}
};
(bytes<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_bytes<$l, $v>()}
};
(byte_buf<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_byte_buf<$l, $v>()}
};
(option<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_option<$l, $v>()}
};
(unit<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_unit<$l, $v>()}
};
(unit_struct<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_unit_struct<$l, $v>(name: &'static str)}
};
(newtype_struct<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_newtype_struct<$l, $v>(name: &'static str)}
};
(seq<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_seq<$l, $v>()}
};
(tuple<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_tuple<$l, $v>(len: usize)}
};
(tuple_struct<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_tuple_struct<$l, $v>(name: &'static str, len: usize)}
};
(map<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_map<$l, $v>()}
};
(struct<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_struct<$l, $v>(name: &'static str, fields: &'static [&'static str])}
};
(enum<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_enum<$l, $v>(name: &'static str, variants: &'static [&'static str])}
};
(identifier<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_identifier<$l, $v>()}
};
(ignored_any<$l:tt, $v:ident>) => {
forward_to_deserialize_any_method!{deserialize_ignored_any<$l, $v>()}
};
}

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// Used only by Serde doc tests. Not public API.
use lib::*;
use ser;
#[doc(hidden)]
#[derive(Debug)]
pub struct Error;
impl ser::Error for Error {
fn custom<T>(_: T) -> Self
where
T: Display,
{
unimplemented!()
}
}
#[cfg(feature = "std")]
impl error::Error for Error {
fn description(&self) -> &str {
unimplemented!()
}
}
impl Display for Error {
fn fmt(&self, _: &mut fmt::Formatter) -> fmt::Result {
unimplemented!()
}
}
#[doc(hidden)]
#[macro_export]
macro_rules! __private_serialize {
() => {
trait Serialize {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: $crate::Serializer;
}
};
}
#[doc(hidden)]
#[macro_export(local_inner_macros)]
macro_rules! __serialize_unimplemented {
($($func:ident)*) => {
$(
__serialize_unimplemented_helper!($func);
)*
};
}
#[doc(hidden)]
#[macro_export]
macro_rules! __serialize_unimplemented_method {
($func:ident $(<$t:ident>)* ($($arg:ty),*) -> $ret:ident) => {
fn $func $(<$t: ?Sized + $crate::Serialize>)* (self $(, _: $arg)*) -> $crate::__private::Result<Self::$ret, Self::Error> {
unimplemented!()
}
};
}
#[doc(hidden)]
#[macro_export(local_inner_macros)]
macro_rules! __serialize_unimplemented_helper {
(bool) => {
__serialize_unimplemented_method!(serialize_bool(bool) -> Ok);
};
(i8) => {
__serialize_unimplemented_method!(serialize_i8(i8) -> Ok);
};
(i16) => {
__serialize_unimplemented_method!(serialize_i16(i16) -> Ok);
};
(i32) => {
__serialize_unimplemented_method!(serialize_i32(i32) -> Ok);
};
(i64) => {
__serialize_unimplemented_method!(serialize_i64(i64) -> Ok);
};
(u8) => {
__serialize_unimplemented_method!(serialize_u8(u8) -> Ok);
};
(u16) => {
__serialize_unimplemented_method!(serialize_u16(u16) -> Ok);
};
(u32) => {
__serialize_unimplemented_method!(serialize_u32(u32) -> Ok);
};
(u64) => {
__serialize_unimplemented_method!(serialize_u64(u64) -> Ok);
};
(f32) => {
__serialize_unimplemented_method!(serialize_f32(f32) -> Ok);
};
(f64) => {
__serialize_unimplemented_method!(serialize_f64(f64) -> Ok);
};
(char) => {
__serialize_unimplemented_method!(serialize_char(char) -> Ok);
};
(str) => {
__serialize_unimplemented_method!(serialize_str(&str) -> Ok);
};
(bytes) => {
__serialize_unimplemented_method!(serialize_bytes(&[u8]) -> Ok);
};
(none) => {
__serialize_unimplemented_method!(serialize_none() -> Ok);
};
(some) => {
__serialize_unimplemented_method!(serialize_some<T>(&T) -> Ok);
};
(unit) => {
__serialize_unimplemented_method!(serialize_unit() -> Ok);
};
(unit_struct) => {
__serialize_unimplemented_method!(serialize_unit_struct(&str) -> Ok);
};
(unit_variant) => {
__serialize_unimplemented_method!(serialize_unit_variant(&str, u32, &str) -> Ok);
};
(newtype_struct) => {
__serialize_unimplemented_method!(serialize_newtype_struct<T>(&str, &T) -> Ok);
};
(newtype_variant) => {
__serialize_unimplemented_method!(serialize_newtype_variant<T>(&str, u32, &str, &T) -> Ok);
};
(seq) => {
type SerializeSeq = $crate::ser::Impossible<Self::Ok, Self::Error>;
__serialize_unimplemented_method!(serialize_seq(Option<usize>) -> SerializeSeq);
};
(tuple) => {
type SerializeTuple = $crate::ser::Impossible<Self::Ok, Self::Error>;
__serialize_unimplemented_method!(serialize_tuple(usize) -> SerializeTuple);
};
(tuple_struct) => {
type SerializeTupleStruct = $crate::ser::Impossible<Self::Ok, Self::Error>;
__serialize_unimplemented_method!(serialize_tuple_struct(&str, usize) -> SerializeTupleStruct);
};
(tuple_variant) => {
type SerializeTupleVariant = $crate::ser::Impossible<Self::Ok, Self::Error>;
__serialize_unimplemented_method!(serialize_tuple_variant(&str, u32, &str, usize) -> SerializeTupleVariant);
};
(map) => {
type SerializeMap = $crate::ser::Impossible<Self::Ok, Self::Error>;
__serialize_unimplemented_method!(serialize_map(Option<usize>) -> SerializeMap);
};
(struct) => {
type SerializeStruct = $crate::ser::Impossible<Self::Ok, Self::Error>;
__serialize_unimplemented_method!(serialize_struct(&str, usize) -> SerializeStruct);
};
(struct_variant) => {
type SerializeStructVariant = $crate::ser::Impossible<Self::Ok, Self::Error>;
__serialize_unimplemented_method!(serialize_struct_variant(&str, u32, &str, usize) -> SerializeStructVariant);
};
}

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#[cfg(not(no_serde_derive))]
pub mod de;
#[cfg(not(no_serde_derive))]
pub mod ser;
pub mod size_hint;
// FIXME: #[cfg(doctest)] once https://github.com/rust-lang/rust/issues/67295 is fixed.
pub mod doc;
pub use lib::clone::Clone;
pub use lib::convert::{From, Into};
pub use lib::default::Default;
pub use lib::fmt::{self, Formatter};
pub use lib::marker::PhantomData;
pub use lib::option::Option::{self, None, Some};
pub use lib::ptr;
pub use lib::result::Result::{self, Err, Ok};
pub use self::string::from_utf8_lossy;
#[cfg(any(feature = "alloc", feature = "std"))]
pub use lib::{ToString, Vec};
#[cfg(not(no_core_try_from))]
pub use lib::convert::TryFrom;
mod string {
use lib::*;
#[cfg(any(feature = "std", feature = "alloc"))]
pub fn from_utf8_lossy(bytes: &[u8]) -> Cow<str> {
String::from_utf8_lossy(bytes)
}
// The generated code calls this like:
//
// let value = &_serde::__private::from_utf8_lossy(bytes);
// Err(_serde::de::Error::unknown_variant(value, VARIANTS))
//
// so it is okay for the return type to be different from the std case as long
// as the above works.
#[cfg(not(any(feature = "std", feature = "alloc")))]
pub fn from_utf8_lossy(bytes: &[u8]) -> &str {
// Three unicode replacement characters if it fails. They look like a
// white-on-black question mark. The user will recognize it as invalid
// UTF-8.
str::from_utf8(bytes).unwrap_or("\u{fffd}\u{fffd}\u{fffd}")
}
}

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use lib::*;
pub fn from_bounds<I>(iter: &I) -> Option<usize>
where
I: Iterator,
{
helper(iter.size_hint())
}
#[cfg(any(feature = "std", feature = "alloc"))]
#[inline]
pub fn cautious(hint: Option<usize>) -> usize {
cmp::min(hint.unwrap_or(0), 4096)
}
fn helper(bounds: (usize, Option<usize>)) -> Option<usize> {
match bounds {
(lower, Some(upper)) if lower == upper => Some(upper),
_ => None,
}
}

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use lib::*;
use ser::{Error, Impossible, Serialize, Serializer};
impl Error for fmt::Error {
fn custom<T: Display>(_msg: T) -> Self {
fmt::Error
}
}
macro_rules! fmt_primitives {
($($f:ident: $t:ty,)*) => {
$(
fn $f(self, v: $t) -> fmt::Result {
Display::fmt(&v, self)
}
)*
};
}
/// ```edition2018
/// use serde::Serialize;
/// use std::fmt::{self, Display};
///
/// #[derive(Serialize)]
/// #[serde(rename_all = "kebab-case")]
/// pub enum MessageType {
/// StartRequest,
/// EndRequest,
/// }
///
/// impl Display for MessageType {
/// fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
/// self.serialize(f)
/// }
/// }
/// ```
impl<'a, 'b> Serializer for &'a mut fmt::Formatter<'b> {
type Ok = ();
type Error = fmt::Error;
type SerializeSeq = Impossible<(), fmt::Error>;
type SerializeTuple = Impossible<(), fmt::Error>;
type SerializeTupleStruct = Impossible<(), fmt::Error>;
type SerializeTupleVariant = Impossible<(), fmt::Error>;
type SerializeMap = Impossible<(), fmt::Error>;
type SerializeStruct = Impossible<(), fmt::Error>;
type SerializeStructVariant = Impossible<(), fmt::Error>;
fmt_primitives! {
serialize_bool: bool,
serialize_i8: i8,
serialize_i16: i16,
serialize_i32: i32,
serialize_i64: i64,
serialize_u8: u8,
serialize_u16: u16,
serialize_u32: u32,
serialize_u64: u64,
serialize_f32: f32,
serialize_f64: f64,
serialize_char: char,
serialize_str: &str,
serialize_unit_struct: &'static str,
}
serde_if_integer128! {
fmt_primitives! {
serialize_i128: i128,
serialize_u128: u128,
}
}
fn serialize_unit_variant(
self,
_name: &'static str,
_variant_index: u32,
variant: &'static str,
) -> fmt::Result {
Display::fmt(variant, self)
}
fn serialize_newtype_struct<T: ?Sized>(self, _name: &'static str, value: &T) -> fmt::Result
where
T: Serialize,
{
Serialize::serialize(value, self)
}
fn serialize_bytes(self, _v: &[u8]) -> fmt::Result {
Err(fmt::Error)
}
fn serialize_none(self) -> fmt::Result {
Err(fmt::Error)
}
fn serialize_some<T: ?Sized>(self, _value: &T) -> fmt::Result
where
T: Serialize,
{
Err(fmt::Error)
}
fn serialize_unit(self) -> fmt::Result {
Err(fmt::Error)
}
fn serialize_newtype_variant<T: ?Sized>(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_value: &T,
) -> fmt::Result
where
T: Serialize,
{
Err(fmt::Error)
}
fn serialize_seq(self, _len: Option<usize>) -> Result<Self::SerializeSeq, fmt::Error> {
Err(fmt::Error)
}
fn serialize_tuple(self, _len: usize) -> Result<Self::SerializeTuple, fmt::Error> {
Err(fmt::Error)
}
fn serialize_tuple_struct(
self,
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleStruct, fmt::Error> {
Err(fmt::Error)
}
fn serialize_tuple_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeTupleVariant, fmt::Error> {
Err(fmt::Error)
}
fn serialize_map(self, _len: Option<usize>) -> Result<Self::SerializeMap, fmt::Error> {
Err(fmt::Error)
}
fn serialize_struct(
self,
_name: &'static str,
_len: usize,
) -> Result<Self::SerializeStruct, fmt::Error> {
Err(fmt::Error)
}
fn serialize_struct_variant(
self,
_name: &'static str,
_variant_index: u32,
_variant: &'static str,
_len: usize,
) -> Result<Self::SerializeStructVariant, fmt::Error> {
Err(fmt::Error)
}
fn collect_str<T: ?Sized>(self, value: &T) -> fmt::Result
where
T: Display,
{
Display::fmt(value, self)
}
}

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use lib::*;
use ser::{Error, Serialize, SerializeTuple, Serializer};
////////////////////////////////////////////////////////////////////////////////
macro_rules! primitive_impl {
($ty:ident, $method:ident $($cast:tt)*) => {
impl Serialize for $ty {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.$method(*self $($cast)*)
}
}
}
}
primitive_impl!(bool, serialize_bool);
primitive_impl!(isize, serialize_i64 as i64);
primitive_impl!(i8, serialize_i8);
primitive_impl!(i16, serialize_i16);
primitive_impl!(i32, serialize_i32);
primitive_impl!(i64, serialize_i64);
primitive_impl!(usize, serialize_u64 as u64);
primitive_impl!(u8, serialize_u8);
primitive_impl!(u16, serialize_u16);
primitive_impl!(u32, serialize_u32);
primitive_impl!(u64, serialize_u64);
primitive_impl!(f32, serialize_f32);
primitive_impl!(f64, serialize_f64);
primitive_impl!(char, serialize_char);
serde_if_integer128! {
primitive_impl!(i128, serialize_i128);
primitive_impl!(u128, serialize_u128);
}
////////////////////////////////////////////////////////////////////////////////
impl Serialize for str {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_str(self)
}
}
#[cfg(any(feature = "std", feature = "alloc"))]
impl Serialize for String {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_str(self)
}
}
impl<'a> Serialize for fmt::Arguments<'a> {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_str(self)
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(feature = "std")]
impl Serialize for CStr {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_bytes(self.to_bytes())
}
}
#[cfg(feature = "std")]
impl Serialize for CString {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_bytes(self.to_bytes())
}
}
////////////////////////////////////////////////////////////////////////////////
impl<T> Serialize for Option<T>
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match *self {
Some(ref value) => serializer.serialize_some(value),
None => serializer.serialize_none(),
}
}
}
////////////////////////////////////////////////////////////////////////////////
impl<T: ?Sized> Serialize for PhantomData<T> {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_unit_struct("PhantomData")
}
}
////////////////////////////////////////////////////////////////////////////////
// Does not require T: Serialize.
impl<T> Serialize for [T; 0] {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
try!(serializer.serialize_tuple(0)).end()
}
}
macro_rules! array_impls {
($($len:tt)+) => {
$(
impl<T> Serialize for [T; $len]
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut seq = try!(serializer.serialize_tuple($len));
for e in self {
try!(seq.serialize_element(e));
}
seq.end()
}
}
)+
}
}
array_impls! {
01 02 03 04 05 06 07 08 09 10
11 12 13 14 15 16 17 18 19 20
21 22 23 24 25 26 27 28 29 30
31 32
}
////////////////////////////////////////////////////////////////////////////////
impl<T> Serialize for [T]
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_seq(self)
}
}
#[cfg(any(feature = "std", feature = "alloc"))]
macro_rules! seq_impl {
($ty:ident < T $(: $tbound1:ident $(+ $tbound2:ident)*)* $(, $typaram:ident : $bound:ident)* >) => {
impl<T $(, $typaram)*> Serialize for $ty<T $(, $typaram)*>
where
T: Serialize $(+ $tbound1 $(+ $tbound2)*)*,
$($typaram: $bound,)*
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_seq(self)
}
}
}
}
#[cfg(any(feature = "std", feature = "alloc"))]
seq_impl!(BinaryHeap<T: Ord>);
#[cfg(any(feature = "std", feature = "alloc"))]
seq_impl!(BTreeSet<T: Ord>);
#[cfg(feature = "std")]
seq_impl!(HashSet<T: Eq + Hash, H: BuildHasher>);
#[cfg(any(feature = "std", feature = "alloc"))]
seq_impl!(LinkedList<T>);
#[cfg(any(feature = "std", feature = "alloc"))]
seq_impl!(Vec<T>);
#[cfg(any(feature = "std", feature = "alloc"))]
seq_impl!(VecDeque<T>);
////////////////////////////////////////////////////////////////////////////////
impl<Idx> Serialize for Range<Idx>
where
Idx: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let mut state = try!(serializer.serialize_struct("Range", 2));
try!(state.serialize_field("start", &self.start));
try!(state.serialize_field("end", &self.end));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(not(no_range_inclusive))]
impl<Idx> Serialize for RangeInclusive<Idx>
where
Idx: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let mut state = try!(serializer.serialize_struct("RangeInclusive", 2));
try!(state.serialize_field("start", &self.start()));
try!(state.serialize_field("end", &self.end()));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(any(not(no_ops_bound), all(feature = "std", not(no_collections_bound))))]
impl<T> Serialize for Bound<T>
where
T: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match *self {
Bound::Unbounded => serializer.serialize_unit_variant("Bound", 0, "Unbounded"),
Bound::Included(ref value) => {
serializer.serialize_newtype_variant("Bound", 1, "Included", value)
}
Bound::Excluded(ref value) => {
serializer.serialize_newtype_variant("Bound", 2, "Excluded", value)
}
}
}
}
////////////////////////////////////////////////////////////////////////////////
impl Serialize for () {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.serialize_unit()
}
}
#[cfg(feature = "unstable")]
impl Serialize for ! {
fn serialize<S>(&self, _serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
*self
}
}
////////////////////////////////////////////////////////////////////////////////
macro_rules! tuple_impls {
($($len:expr => ($($n:tt $name:ident)+))+) => {
$(
impl<$($name),+> Serialize for ($($name,)+)
where
$($name: Serialize,)+
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
let mut tuple = try!(serializer.serialize_tuple($len));
$(
try!(tuple.serialize_element(&self.$n));
)+
tuple.end()
}
}
)+
}
}
tuple_impls! {
1 => (0 T0)
2 => (0 T0 1 T1)
3 => (0 T0 1 T1 2 T2)
4 => (0 T0 1 T1 2 T2 3 T3)
5 => (0 T0 1 T1 2 T2 3 T3 4 T4)
6 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5)
7 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6)
8 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7)
9 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8)
10 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9)
11 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10)
12 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11)
13 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11 12 T12)
14 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11 12 T12 13 T13)
15 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11 12 T12 13 T13 14 T14)
16 => (0 T0 1 T1 2 T2 3 T3 4 T4 5 T5 6 T6 7 T7 8 T8 9 T9 10 T10 11 T11 12 T12 13 T13 14 T14 15 T15)
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(any(feature = "std", feature = "alloc"))]
macro_rules! map_impl {
($ty:ident < K $(: $kbound1:ident $(+ $kbound2:ident)*)*, V $(, $typaram:ident : $bound:ident)* >) => {
impl<K, V $(, $typaram)*> Serialize for $ty<K, V $(, $typaram)*>
where
K: Serialize $(+ $kbound1 $(+ $kbound2)*)*,
V: Serialize,
$($typaram: $bound,)*
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
serializer.collect_map(self)
}
}
}
}
#[cfg(any(feature = "std", feature = "alloc"))]
map_impl!(BTreeMap<K: Ord, V>);
#[cfg(feature = "std")]
map_impl!(HashMap<K: Eq + Hash, V, H: BuildHasher>);
////////////////////////////////////////////////////////////////////////////////
macro_rules! deref_impl {
(
$(#[doc = $doc:tt])*
<$($desc:tt)+
) => {
$(#[doc = $doc])*
impl <$($desc)+ {
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
(**self).serialize(serializer)
}
}
};
}
deref_impl!(<'a, T: ?Sized> Serialize for &'a T where T: Serialize);
deref_impl!(<'a, T: ?Sized> Serialize for &'a mut T where T: Serialize);
#[cfg(any(feature = "std", feature = "alloc"))]
deref_impl!(<T: ?Sized> Serialize for Box<T> where T: Serialize);
#[cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))]
deref_impl! {
/// This impl requires the [`"rc"`] Cargo feature of Serde.
///
/// Serializing a data structure containing `Rc` will serialize a copy of
/// the contents of the `Rc` each time the `Rc` is referenced within the
/// data structure. Serialization will not attempt to deduplicate these
/// repeated data.
///
/// [`"rc"`]: https://serde.rs/feature-flags.html#-features-rc
<T: ?Sized> Serialize for Rc<T> where T: Serialize
}
#[cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))]
deref_impl! {
/// This impl requires the [`"rc"`] Cargo feature of Serde.
///
/// Serializing a data structure containing `Arc` will serialize a copy of
/// the contents of the `Arc` each time the `Arc` is referenced within the
/// data structure. Serialization will not attempt to deduplicate these
/// repeated data.
///
/// [`"rc"`]: https://serde.rs/feature-flags.html#-features-rc
<T: ?Sized> Serialize for Arc<T> where T: Serialize
}
#[cfg(any(feature = "std", feature = "alloc"))]
deref_impl!(<'a, T: ?Sized> Serialize for Cow<'a, T> where T: Serialize + ToOwned);
////////////////////////////////////////////////////////////////////////////////
/// This impl requires the [`"rc"`] Cargo feature of Serde.
///
/// [`"rc"`]: https://serde.rs/feature-flags.html#-features-rc
#[cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))]
impl<T: ?Sized> Serialize for RcWeak<T>
where
T: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.upgrade().serialize(serializer)
}
}
/// This impl requires the [`"rc"`] Cargo feature of Serde.
///
/// [`"rc"`]: https://serde.rs/feature-flags.html#-features-rc
#[cfg(all(feature = "rc", any(feature = "std", feature = "alloc")))]
impl<T: ?Sized> Serialize for ArcWeak<T>
where
T: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.upgrade().serialize(serializer)
}
}
////////////////////////////////////////////////////////////////////////////////
macro_rules! nonzero_integers {
( $( $T: ident, )+ ) => {
$(
#[cfg(not(no_num_nonzero))]
impl Serialize for num::$T {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.get().serialize(serializer)
}
}
)+
}
}
nonzero_integers! {
NonZeroU8,
NonZeroU16,
NonZeroU32,
NonZeroU64,
NonZeroUsize,
}
#[cfg(not(no_num_nonzero_signed))]
nonzero_integers! {
NonZeroI8,
NonZeroI16,
NonZeroI32,
NonZeroI64,
NonZeroIsize,
}
// Currently 128-bit integers do not work on Emscripten targets so we need an
// additional `#[cfg]`
serde_if_integer128! {
nonzero_integers! {
NonZeroU128,
}
#[cfg(not(no_num_nonzero_signed))]
nonzero_integers! {
NonZeroI128,
}
}
impl<T> Serialize for Cell<T>
where
T: Serialize + Copy,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.get().serialize(serializer)
}
}
impl<T> Serialize for RefCell<T>
where
T: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self.try_borrow() {
Ok(value) => value.serialize(serializer),
Err(_) => Err(S::Error::custom("already mutably borrowed")),
}
}
}
#[cfg(feature = "std")]
impl<T> Serialize for Mutex<T>
where
T: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self.lock() {
Ok(locked) => locked.serialize(serializer),
Err(_) => Err(S::Error::custom("lock poison error while serializing")),
}
}
}
#[cfg(feature = "std")]
impl<T> Serialize for RwLock<T>
where
T: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self.read() {
Ok(locked) => locked.serialize(serializer),
Err(_) => Err(S::Error::custom("lock poison error while serializing")),
}
}
}
////////////////////////////////////////////////////////////////////////////////
impl<T, E> Serialize for Result<T, E>
where
T: Serialize,
E: Serialize,
{
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match *self {
Result::Ok(ref value) => serializer.serialize_newtype_variant("Result", 0, "Ok", value),
Result::Err(ref value) => {
serializer.serialize_newtype_variant("Result", 1, "Err", value)
}
}
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(any(feature = "std", not(no_core_duration)))]
impl Serialize for Duration {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let mut state = try!(serializer.serialize_struct("Duration", 2));
try!(state.serialize_field("secs", &self.as_secs()));
try!(state.serialize_field("nanos", &self.subsec_nanos()));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(feature = "std")]
impl Serialize for SystemTime {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use super::SerializeStruct;
let duration_since_epoch = self
.duration_since(UNIX_EPOCH)
.map_err(|_| S::Error::custom("SystemTime must be later than UNIX_EPOCH"))?;
let mut state = try!(serializer.serialize_struct("SystemTime", 2));
try!(state.serialize_field("secs_since_epoch", &duration_since_epoch.as_secs()));
try!(state.serialize_field("nanos_since_epoch", &duration_since_epoch.subsec_nanos()));
state.end()
}
}
////////////////////////////////////////////////////////////////////////////////
/// Serialize a value that implements `Display` as a string, when that string is
/// statically known to never have more than a constant `MAX_LEN` bytes.
///
/// Panics if the `Display` impl tries to write more than `MAX_LEN` bytes.
#[cfg(feature = "std")]
macro_rules! serialize_display_bounded_length {
($value:expr, $max:expr, $serializer:expr) => {{
let mut buffer = [0u8; $max];
let remaining_len = {
let mut remaining = &mut buffer[..];
write!(remaining, "{}", $value).unwrap();
remaining.len()
};
let written_len = buffer.len() - remaining_len;
let written = &buffer[..written_len];
// write! only provides fmt::Formatter to Display implementations, which
// has methods write_str and write_char but no method to write arbitrary
// bytes. Therefore `written` must be valid UTF-8.
let written_str = str::from_utf8(written).expect("must be valid UTF-8");
$serializer.serialize_str(written_str)
}};
}
#[cfg(feature = "std")]
impl Serialize for net::IpAddr {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
match *self {
net::IpAddr::V4(ref a) => a.serialize(serializer),
net::IpAddr::V6(ref a) => a.serialize(serializer),
}
} else {
match *self {
net::IpAddr::V4(ref a) => {
serializer.serialize_newtype_variant("IpAddr", 0, "V4", a)
}
net::IpAddr::V6(ref a) => {
serializer.serialize_newtype_variant("IpAddr", 1, "V6", a)
}
}
}
}
}
#[cfg(feature = "std")]
const DEC_DIGITS_LUT: &'static [u8] = b"\
0001020304050607080910111213141516171819\
2021222324252627282930313233343536373839\
4041424344454647484950515253545556575859\
6061626364656667686970717273747576777879\
8081828384858687888990919293949596979899";
#[cfg(feature = "std")]
#[inline]
fn format_u8(mut n: u8, out: &mut [u8]) -> usize {
if n >= 100 {
let d1 = ((n % 100) << 1) as usize;
n /= 100;
out[0] = b'0' + n;
out[1] = DEC_DIGITS_LUT[d1];
out[2] = DEC_DIGITS_LUT[d1 + 1];
3
} else if n >= 10 {
let d1 = (n << 1) as usize;
out[0] = DEC_DIGITS_LUT[d1];
out[1] = DEC_DIGITS_LUT[d1 + 1];
2
} else {
out[0] = b'0' + n;
1
}
}
#[cfg(feature = "std")]
#[test]
fn test_format_u8() {
let mut i = 0u8;
loop {
let mut buf = [0u8; 3];
let written = format_u8(i, &mut buf);
assert_eq!(i.to_string().as_bytes(), &buf[..written]);
match i.checked_add(1) {
Some(next) => i = next,
None => break,
}
}
}
#[cfg(feature = "std")]
impl Serialize for net::Ipv4Addr {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
const MAX_LEN: usize = 15;
debug_assert_eq!(MAX_LEN, "101.102.103.104".len());
let mut buf = [b'.'; MAX_LEN];
let mut written = format_u8(self.octets()[0], &mut buf);
for oct in &self.octets()[1..] {
// Skip over delimiters that we initialized buf with
written += format_u8(*oct, &mut buf[written + 1..]) + 1;
}
// We've only written ASCII bytes to the buffer, so it is valid UTF-8
serializer.serialize_str(unsafe { str::from_utf8_unchecked(&buf[..written]) })
} else {
self.octets().serialize(serializer)
}
}
}
#[cfg(feature = "std")]
impl Serialize for net::Ipv6Addr {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
const MAX_LEN: usize = 39;
debug_assert_eq!(MAX_LEN, "1001:1002:1003:1004:1005:1006:1007:1008".len());
serialize_display_bounded_length!(self, MAX_LEN, serializer)
} else {
self.octets().serialize(serializer)
}
}
}
#[cfg(feature = "std")]
impl Serialize for net::SocketAddr {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
match *self {
net::SocketAddr::V4(ref addr) => addr.serialize(serializer),
net::SocketAddr::V6(ref addr) => addr.serialize(serializer),
}
} else {
match *self {
net::SocketAddr::V4(ref addr) => {
serializer.serialize_newtype_variant("SocketAddr", 0, "V4", addr)
}
net::SocketAddr::V6(ref addr) => {
serializer.serialize_newtype_variant("SocketAddr", 1, "V6", addr)
}
}
}
}
}
#[cfg(feature = "std")]
impl Serialize for net::SocketAddrV4 {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
const MAX_LEN: usize = 21;
debug_assert_eq!(MAX_LEN, "101.102.103.104:65000".len());
serialize_display_bounded_length!(self, MAX_LEN, serializer)
} else {
(self.ip(), self.port()).serialize(serializer)
}
}
}
#[cfg(feature = "std")]
impl Serialize for net::SocketAddrV6 {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
if serializer.is_human_readable() {
const MAX_LEN: usize = 58;
debug_assert_eq!(
MAX_LEN,
"[1001:1002:1003:1004:1005:1006:1007:1008%4294967295]:65000".len()
);
serialize_display_bounded_length!(self, MAX_LEN, serializer)
} else {
(self.ip(), self.port()).serialize(serializer)
}
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(feature = "std")]
impl Serialize for Path {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
match self.to_str() {
Some(s) => s.serialize(serializer),
None => Err(Error::custom("path contains invalid UTF-8 characters")),
}
}
}
#[cfg(feature = "std")]
impl Serialize for PathBuf {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.as_path().serialize(serializer)
}
}
#[cfg(all(feature = "std", any(unix, windows)))]
impl Serialize for OsStr {
#[cfg(unix)]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use std::os::unix::ffi::OsStrExt;
serializer.serialize_newtype_variant("OsString", 0, "Unix", self.as_bytes())
}
#[cfg(windows)]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
use std::os::windows::ffi::OsStrExt;
let val = self.encode_wide().collect::<Vec<_>>();
serializer.serialize_newtype_variant("OsString", 1, "Windows", &val)
}
}
#[cfg(all(feature = "std", any(unix, windows)))]
impl Serialize for OsString {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.as_os_str().serialize(serializer)
}
}
////////////////////////////////////////////////////////////////////////////////
impl<T> Serialize for Wrapping<T>
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.0.serialize(serializer)
}
}
#[cfg(not(no_core_reverse))]
impl<T> Serialize for Reverse<T>
where
T: Serialize,
{
#[inline]
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
self.0.serialize(serializer)
}
}
////////////////////////////////////////////////////////////////////////////////
#[cfg(all(feature = "std", not(no_std_atomic)))]
macro_rules! atomic_impl {
($($ty:ident)*) => {
$(
impl Serialize for $ty {
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where
S: Serializer,
{
// Matches the atomic ordering used in libcore for the Debug impl
self.load(Ordering::SeqCst).serialize(serializer)
}
}
)*
}
}
#[cfg(all(feature = "std", not(no_std_atomic)))]
atomic_impl! {
AtomicBool
AtomicI8 AtomicI16 AtomicI32 AtomicIsize
AtomicU8 AtomicU16 AtomicU32 AtomicUsize
}
#[cfg(all(feature = "std", not(no_std_atomic64)))]
atomic_impl! {
AtomicI64 AtomicU64
}

216
zeroidc/vendor/serde/src/ser/impossible.rs vendored Normal file
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//! This module contains `Impossible` serializer and its implementations.
use lib::*;
use ser::{
self, Serialize, SerializeMap, SerializeSeq, SerializeStruct, SerializeStructVariant,
SerializeTuple, SerializeTupleStruct, SerializeTupleVariant,
};
/// Helper type for implementing a `Serializer` that does not support
/// serializing one of the compound types.
///
/// This type cannot be instantiated, but implements every one of the traits
/// corresponding to the [`Serializer`] compound types: [`SerializeSeq`],
/// [`SerializeTuple`], [`SerializeTupleStruct`], [`SerializeTupleVariant`],
/// [`SerializeMap`], [`SerializeStruct`], and [`SerializeStructVariant`].
///
/// ```edition2018
/// # use serde::ser::{Serializer, Impossible};
/// # use serde::__private::doc::Error;
/// #
/// # struct MySerializer;
/// #
/// impl Serializer for MySerializer {
/// type Ok = ();
/// type Error = Error;
///
/// type SerializeSeq = Impossible<(), Error>;
/// /* other associated types */
///
/// /// This data format does not support serializing sequences.
/// fn serialize_seq(self,
/// len: Option<usize>)
/// -> Result<Self::SerializeSeq, Error> {
/// // Given Impossible cannot be instantiated, the only
/// // thing we can do here is to return an error.
/// # stringify! {
/// Err(...)
/// # };
/// # unimplemented!()
/// }
///
/// /* other Serializer methods */
/// # serde::__serialize_unimplemented! {
/// # bool i8 i16 i32 i64 u8 u16 u32 u64 f32 f64 char str bytes none some
/// # unit unit_struct unit_variant newtype_struct newtype_variant
/// # tuple tuple_struct tuple_variant map struct struct_variant
/// # }
/// }
/// ```
///
/// [`Serializer`]: trait.Serializer.html
/// [`SerializeSeq`]: trait.SerializeSeq.html
/// [`SerializeTuple`]: trait.SerializeTuple.html
/// [`SerializeTupleStruct`]: trait.SerializeTupleStruct.html
/// [`SerializeTupleVariant`]: trait.SerializeTupleVariant.html
/// [`SerializeMap`]: trait.SerializeMap.html
/// [`SerializeStruct`]: trait.SerializeStruct.html
/// [`SerializeStructVariant`]: trait.SerializeStructVariant.html
pub struct Impossible<Ok, Error> {
void: Void,
ok: PhantomData<Ok>,
error: PhantomData<Error>,
}
enum Void {}
impl<Ok, Error> SerializeSeq for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeTuple for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeTupleStruct for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeTupleVariant for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeMap for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = key;
match self.void {}
}
fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeStruct for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = key;
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}
impl<Ok, Error> SerializeStructVariant for Impossible<Ok, Error>
where
Error: ser::Error,
{
type Ok = Ok;
type Error = Error;
fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Error>
where
T: Serialize,
{
let _ = key;
let _ = value;
match self.void {}
}
fn end(self) -> Result<Ok, Error> {
match self.void {}
}
}

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zeroidc/vendor/serde/src/ser/mod.rs vendored Normal file
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48
zeroidc/vendor/serde/src/std_error.rs vendored Normal file
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use lib::{Debug, Display};
/// Either a re-export of std::error::Error or a new identical trait, depending
/// on whether Serde's "std" feature is enabled.
///
/// Serde's error traits [`serde::ser::Error`] and [`serde::de::Error`] require
/// [`std::error::Error`] as a supertrait, but only when Serde is built with
/// "std" enabled. Data formats that don't care about no\_std support should
/// generally provide their error types with a `std::error::Error` impl
/// directly:
///
/// ```edition2018
/// #[derive(Debug)]
/// struct MySerError {...}
///
/// impl serde::ser::Error for MySerError {...}
///
/// impl std::fmt::Display for MySerError {...}
///
/// // We don't support no_std!
/// impl std::error::Error for MySerError {}
/// ```
///
/// Data formats that *do* support no\_std may either have a "std" feature of
/// their own:
///
/// ```toml
/// [features]
/// std = ["serde/std"]
/// ```
///
/// ```edition2018
/// #[cfg(feature = "std")]
/// impl std::error::Error for MySerError {}
/// ```
///
/// ... or else provide the std Error impl unconditionally via Serde's
/// re-export:
///
/// ```edition2018
/// impl serde::ser::StdError for MySerError {}
/// ```
pub trait Error: Debug + Display {
/// The underlying cause of this error, if any.
fn source(&self) -> Option<&(Error + 'static)> {
None
}
}