79 lines
2.1 KiB
Rust
79 lines
2.1 KiB
Rust
// Copyright 2017 Serde Developers
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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//! This crate provides Serde's two derive macros.
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//!
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//! ```rust
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//! # #[macro_use]
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//! # extern crate serde_derive;
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//! #
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//! #[derive(Serialize, Deserialize)]
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//! # struct S;
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//! #
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//! # fn main() {}
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//! ```
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//!
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//! Please refer to [https://serde.rs/derive.html] for how to set this up.
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//!
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//! [https://serde.rs/derive.html]: https://serde.rs/derive.html
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#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.39")]
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#![cfg_attr(
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feature = "cargo-clippy",
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allow(enum_variant_names, redundant_field_names, too_many_arguments, used_underscore_binding)
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)]
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// The `quote!` macro requires deep recursion.
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#![recursion_limit = "512"]
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#[macro_use]
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extern crate quote;
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#[macro_use]
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extern crate syn;
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extern crate serde_derive_internals as internals;
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extern crate proc_macro;
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extern crate proc_macro2;
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use proc_macro::TokenStream;
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use syn::DeriveInput;
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// Quote's default is def_site but it appears call_site is likely to stabilize
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// before def_site. Thus we try to use only call_site.
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macro_rules! quote {
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($($tt:tt)*) => {
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quote_spanned!($crate::proc_macro2::Span::call_site()=> $($tt)*)
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}
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}
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#[macro_use]
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mod bound;
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#[macro_use]
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mod fragment;
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mod de;
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mod ser;
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#[proc_macro_derive(Serialize, attributes(serde))]
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pub fn derive_serialize(input: TokenStream) -> TokenStream {
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let input: DeriveInput = syn::parse(input).unwrap();
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match ser::expand_derive_serialize(&input) {
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Ok(expanded) => expanded.into(),
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Err(msg) => panic!(msg),
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}
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}
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#[proc_macro_derive(Deserialize, attributes(serde))]
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pub fn derive_deserialize(input: TokenStream) -> TokenStream {
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let input: DeriveInput = syn::parse(input).unwrap();
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match de::expand_derive_deserialize(&input) {
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Ok(expanded) => expanded.into(),
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Err(msg) => panic!(msg),
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}
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}
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