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// Copyright 2017 Serde Developers
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! This crate provides Serde's two derive macros.
//!
//! ```rust
//! # #[macro_use]
//! # extern crate serde_derive;
//! #
//! #[derive(Serialize, Deserialize)]
//! # struct S;
//! #
//! # fn main() {}
//! ```
//!
//! Please refer to [https://serde.rs/derive.html] for how to set this up.
//!
//! [https://serde.rs/derive.html]: https://serde.rs/derive.html
#![doc(html_root_url = "https://docs.rs/serde_derive/1.0.79")]
#![cfg_attr(feature = "cargo-clippy", allow(renamed_and_removed_lints))]
#![cfg_attr(feature = "cargo-clippy", deny(clippy, clippy_pedantic))]
// Whitelisted clippy lints
#![cfg_attr(
feature = "cargo-clippy",
allow(
cyclomatic_complexity,
enum_variant_names,
needless_pass_by_value,
redundant_field_names,
too_many_arguments,
used_underscore_binding,
)
)]
// Whitelisted clippy_pedantic lints
#![cfg_attr(
feature = "cargo-clippy",
allow(
cast_possible_truncation,
doc_markdown,
enum_glob_use,
filter_map,
indexing_slicing,
items_after_statements,
match_same_arms,
similar_names,
single_match_else,
stutter,
unseparated_literal_suffix,
use_self,
)
)]
// The `quote!` macro requires deep recursion.
#![recursion_limit = "512"]
#[macro_use]
extern crate quote;
#[macro_use]
extern crate syn;
extern crate proc_macro;
extern crate proc_macro2;
mod internals;
use proc_macro::TokenStream;
use syn::DeriveInput;
#[macro_use]
mod bound;
#[macro_use]
mod fragment;
mod de;
mod pretend;
mod ser;
mod try;
#[proc_macro_derive(Serialize, attributes(serde))]
pub fn derive_serialize(input: TokenStream) -> TokenStream {
let input = parse_macro_input!(input as DeriveInput);
ser::expand_derive_serialize(&input)
.unwrap_or_else(compile_error)
.into()
}
#[proc_macro_derive(Deserialize, attributes(serde))]
pub fn derive_deserialize(input: TokenStream) -> TokenStream {
let input = parse_macro_input!(input as DeriveInput);
de::expand_derive_deserialize(&input)
.unwrap_or_else(compile_error)
.into()
}
fn compile_error(message: String) -> proc_macro2::TokenStream {
quote! {
compile_error!(#message);
}
}