serde_derive/
lib.rs

1//! This crate provides Serde's two derive macros.
2//!
3//! ```edition2021
4//! # use serde_derive::{Deserialize, Serialize};
5//! #
6//! #[derive(Serialize, Deserialize)]
7//! # struct S;
8//! #
9//! # fn main() {}
10//! ```
11//!
12//! Please refer to [https://serde.rs/derive.html] for how to set this up.
13//!
14//! [https://serde.rs/derive.html]: https://serde.rs/derive.html
15
16#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.225")]
17#![cfg_attr(not(check_cfg), allow(unexpected_cfgs))]
18// Ignored clippy lints
19#![allow(
20    // clippy false positive: https://github.com/rust-lang/rust-clippy/issues/7054
21    clippy::branches_sharing_code,
22    clippy::cognitive_complexity,
23    // clippy bug: https://github.com/rust-lang/rust-clippy/issues/7575
24    clippy::collapsible_match,
25    clippy::derive_partial_eq_without_eq,
26    clippy::enum_variant_names,
27    // clippy bug: https://github.com/rust-lang/rust-clippy/issues/6797
28    clippy::manual_map,
29    clippy::match_like_matches_macro,
30    clippy::needless_lifetimes,
31    clippy::needless_pass_by_value,
32    clippy::too_many_arguments,
33    clippy::trivially_copy_pass_by_ref,
34    clippy::used_underscore_binding,
35    clippy::wildcard_in_or_patterns,
36    // clippy bug: https://github.com/rust-lang/rust-clippy/issues/5704
37    clippy::unnested_or_patterns,
38)]
39// Ignored clippy_pedantic lints
40#![allow(
41    clippy::cast_possible_truncation,
42    clippy::checked_conversions,
43    clippy::doc_markdown,
44    clippy::elidable_lifetime_names,
45    clippy::enum_glob_use,
46    clippy::indexing_slicing,
47    clippy::items_after_statements,
48    clippy::let_underscore_untyped,
49    clippy::manual_assert,
50    clippy::map_err_ignore,
51    clippy::match_same_arms,
52    // clippy bug: https://github.com/rust-lang/rust-clippy/issues/6984
53    clippy::match_wildcard_for_single_variants,
54    clippy::module_name_repetitions,
55    clippy::must_use_candidate,
56    clippy::similar_names,
57    clippy::single_match_else,
58    clippy::struct_excessive_bools,
59    clippy::too_many_lines,
60    clippy::uninlined_format_args,
61    clippy::unseparated_literal_suffix,
62    clippy::unused_self,
63    clippy::use_self,
64    clippy::wildcard_imports
65)]
66#![cfg_attr(all(test, exhaustive), feature(non_exhaustive_omitted_patterns_lint))]
67#![allow(unknown_lints, mismatched_lifetime_syntaxes)]
68
69extern crate proc_macro2;
70extern crate quote;
71extern crate syn;
72
73extern crate proc_macro;
74
75mod internals;
76
77use proc_macro::TokenStream;
78use proc_macro2::{Ident, Span};
79use quote::{ToTokens, TokenStreamExt as _};
80use syn::parse_macro_input;
81use syn::DeriveInput;
82
83#[macro_use]
84mod bound;
85#[macro_use]
86mod fragment;
87
88mod de;
89mod deprecated;
90mod dummy;
91mod pretend;
92mod ser;
93mod this;
94
95#[allow(non_camel_case_types)]
96struct private;
97
98impl private {
99    fn ident(&self) -> Ident {
100        Ident::new(
101            concat!("__private", env!("CARGO_PKG_VERSION_PATCH")),
102            Span::call_site(),
103        )
104    }
105}
106
107impl ToTokens for private {
108    fn to_tokens(&self, tokens: &mut proc_macro2::TokenStream) {
109        tokens.append(self.ident());
110    }
111}
112
113#[proc_macro_derive(Serialize, attributes(serde))]
114pub fn derive_serialize(input: TokenStream) -> TokenStream {
115    let mut input = parse_macro_input!(input as DeriveInput);
116    ser::expand_derive_serialize(&mut input)
117        .unwrap_or_else(syn::Error::into_compile_error)
118        .into()
119}
120
121#[proc_macro_derive(Deserialize, attributes(serde))]
122pub fn derive_deserialize(input: TokenStream) -> TokenStream {
123    let mut input = parse_macro_input!(input as DeriveInput);
124    de::expand_derive_deserialize(&mut input)
125        .unwrap_or_else(syn::Error::into_compile_error)
126        .into()
127}
serde_derive/lib.rs

serde_derive/
lib.rs
