Initial vendor packages

Signed-off-by: Valentin Popov <valentin@popov.link>

1 files changed, 334 insertions, 0 deletions

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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.
+//! - [Postcard], a no\_std and embedded-systems friendly compact binary format.
+//! - [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.
+//! - [URL] query strings, in the x-www-form-urlencoded format.
+//! - [Starlark], the format used for describing build targets by the Bazel and
+//!   Buck build systems. *(serialization only)*
+//! - [Envy], a way to deserialize environment variables into Rust structs.
+//!   *(deserialization only)*
+//! - [Envy Store], a way to deserialize [AWS Parameter Store] parameters into
+//!   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.
+//! - [Bencode], a simple binary format used in the BitTorrent protocol.
+//! - [Token streams], for processing Rust procedural macro input.
+//!   *(deserialization only)*
+//! - [DynamoDB Items], the format used by [rusoto_dynamodb] to transfer data to
+//!   and from DynamoDB.
+//! - [Hjson], a syntax extension to JSON designed around human reading and
+//!   editing. *(deserialization only)*
+//! - [CSV], Comma-separated values is a tabular text file format.
+//!
+//! [JSON]: https://github.com/serde-rs/json
+//! [Postcard]: https://github.com/jamesmunns/postcard
+//! [CBOR]: https://github.com/enarx/ciborium
+//! [YAML]: https://github.com/dtolnay/serde-yaml
+//! [MessagePack]: https://github.com/3Hren/msgpack-rust
+//! [TOML]: https://docs.rs/toml
+//! [Pickle]: https://github.com/birkenfeld/serde-pickle
+//! [RON]: https://github.com/ron-rs/ron
+//! [BSON]: https://github.com/mongodb/bson-rust
+//! [Avro]: https://docs.rs/apache-avro
+//! [JSON5]: https://github.com/callum-oakley/json5-rs
+//! [URL]: https://docs.rs/serde_qs
+//! [Starlark]: https://github.com/dtolnay/serde-starlark
+//! [Envy]: https://github.com/softprops/envy
+//! [Envy Store]: https://github.com/softprops/envy-store
+//! [Cargo]: https://doc.rust-lang.org/cargo/reference/manifest.html
+//! [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
+//! [Bencode]: https://github.com/P3KI/bendy
+//! [Token streams]: https://github.com/oxidecomputer/serde_tokenstream
+//! [DynamoDB Items]: https://docs.rs/serde_dynamo
+//! [rusoto_dynamodb]: https://docs.rs/rusoto_dynamodb
+//! [Hjson]: https://github.com/Canop/deser-hjson
+//! [CSV]: https://docs.rs/csv
+
+////////////////////////////////////////////////////////////////////////////////
+
+// Serde types in rustdoc of other crates get linked to here.
+#![doc(html_root_url = "https://docs.rs/serde/1.0.195")]
+// Support using Serde without the standard library!
+#![cfg_attr(not(feature = "std"), no_std)]
+// Show which crate feature enables conditionally compiled APIs in documentation.
+#![cfg_attr(doc_cfg, feature(doc_cfg))]
+// 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(error_in_core, never_type))]
+#![allow(unknown_lints, bare_trait_objects, deprecated)]
+// Ignored clippy and clippy_pedantic lints
+#![allow(
+    // clippy bug: https://github.com/rust-lang/rust-clippy/issues/5704
+    clippy::unnested_or_patterns,
+    // clippy bug: https://github.com/rust-lang/rust-clippy/issues/7768
+    clippy::semicolon_if_nothing_returned,
+    // not available in our oldest supported compiler
+    clippy::empty_enum,
+    clippy::type_repetition_in_bounds, // https://github.com/rust-lang/rust-clippy/issues/8772
+    // integer and float ser/de requires these sorts of casts
+    clippy::cast_possible_truncation,
+    clippy::cast_possible_wrap,
+    clippy::cast_sign_loss,
+    // things are often more readable this way
+    clippy::cast_lossless,
+    clippy::module_name_repetitions,
+    clippy::single_match_else,
+    clippy::type_complexity,
+    clippy::use_self,
+    clippy::zero_prefixed_literal,
+    // correctly used
+    clippy::derive_partial_eq_without_eq,
+    clippy::enum_glob_use,
+    clippy::explicit_auto_deref,
+    clippy::let_underscore_untyped,
+    clippy::map_err_ignore,
+    clippy::new_without_default,
+    clippy::result_unit_err,
+    clippy::wildcard_imports,
+    // not practical
+    clippy::needless_pass_by_value,
+    clippy::similar_names,
+    clippy::too_many_lines,
+    // preference
+    clippy::doc_markdown,
+    clippy::unseparated_literal_suffix,
+    // false positive
+    clippy::needless_doctest_main,
+    // noisy
+    clippy::missing_errors_doc,
+    clippy::must_use_candidate,
+)]
+// Restrictions
+#![deny(clippy::question_mark_used)]
+// 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::{f32, f64};
+    pub use self::core::{i16, i32, i64, i8, isize};
+    pub use self::core::{iter, num, ptr, str};
+    pub use self::core::{u16, u32, u64, u8, usize};
+
+    #[cfg(any(feature = "std", feature = "alloc"))]
+    pub use self::core::{cmp, mem, slice};
+
+    pub use self::core::cell::{Cell, RefCell};
+    pub use self::core::clone::{self, Clone};
+    pub use self::core::cmp::Reverse;
+    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::{Bound, Range, RangeFrom, RangeInclusive, RangeTo};
+    pub use self::core::option::{self, Option};
+    pub use self::core::result::{self, Result};
+    pub use self::core::time::Duration;
+
+    #[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(all(not(no_core_cstr), not(feature = "std")))]
+    pub use self::core::ffi::CStr;
+    #[cfg(feature = "std")]
+    pub use std::ffi::CStr;
+
+    #[cfg(all(not(no_core_cstr), feature = "alloc", not(feature = "std")))]
+    pub use alloc::ffi::CString;
+    #[cfg(feature = "std")]
+    pub use std::ffi::CString;
+
+    #[cfg(feature = "std")]
+    pub use std::{error, net};
+
+    #[cfg(feature = "std")]
+    pub use std::collections::{HashMap, HashSet};
+    #[cfg(feature = "std")]
+    pub use std::ffi::{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", no_target_has_atomic, not(no_std_atomic)))]
+    pub use std::sync::atomic::{
+        AtomicBool, AtomicI16, AtomicI32, AtomicI8, AtomicIsize, AtomicU16, AtomicU32, AtomicU8,
+        AtomicUsize, Ordering,
+    };
+    #[cfg(all(feature = "std", no_target_has_atomic, not(no_std_atomic64)))]
+    pub use std::sync::atomic::{AtomicI64, AtomicU64};
+
+    #[cfg(all(feature = "std", not(no_target_has_atomic)))]
+    pub use std::sync::atomic::Ordering;
+    #[cfg(all(feature = "std", not(no_target_has_atomic), target_has_atomic = "8"))]
+    pub use std::sync::atomic::{AtomicBool, AtomicI8, AtomicU8};
+    #[cfg(all(feature = "std", not(no_target_has_atomic), target_has_atomic = "16"))]
+    pub use std::sync::atomic::{AtomicI16, AtomicU16};
+    #[cfg(all(feature = "std", not(no_target_has_atomic), target_has_atomic = "32"))]
+    pub use std::sync::atomic::{AtomicI32, AtomicU32};
+    #[cfg(all(feature = "std", not(no_target_has_atomic), target_has_atomic = "64"))]
+    pub use std::sync::atomic::{AtomicI64, AtomicU64};
+    #[cfg(all(feature = "std", not(no_target_has_atomic), target_has_atomic = "ptr"))]
+    pub use std::sync::atomic::{AtomicIsize, AtomicUsize};
+}
+
+// None of this crate's error handling needs the `From::from` error conversion
+// performed implicitly by the `?` operator or the standard library's `try!`
+// macro. This simplified macro gives a 5.5% improvement in compile time
+// compared to standard `try!`, and 9% improvement compared to `?`.
+macro_rules! tri {
+    ($expr:expr) => {
+        match $expr {
+            Ok(val) => val,
+            Err(err) => return Err(err),
+        }
+    };
+}
+
+////////////////////////////////////////////////////////////////////////////////
+
+#[macro_use]
+mod macros;
+
+#[macro_use]
+mod integer128;
+
+pub mod de;
+pub mod ser;
+
+#[doc(inline)]
+pub use crate::de::{Deserialize, Deserializer};
+#[doc(inline)]
+pub use crate::ser::{Serialize, Serializer};
+
+// Used by generated code and doc tests. Not public API.
+#[doc(hidden)]
+#[path = "private/mod.rs"]
+pub mod __private;
+
+#[path = "de/seed.rs"]
+mod seed;
+
+#[cfg(not(any(feature = "std", feature = "unstable")))]
+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")]
+extern crate serde_derive;
+
+/// Derive macro available if serde is built with `features = ["derive"]`.
+#[cfg(feature = "serde_derive")]
+#[cfg_attr(doc_cfg, doc(cfg(feature = "derive")))]
+pub use serde_derive::{Deserialize, Serialize};
+
+#[cfg(all(not(no_serde_derive), any(feature = "std", feature = "alloc")))]
+mod actually_private {
+    pub struct T;
+}