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#![allow(deprecated)]
#![allow(renamed_and_removed_lints)]
#![allow(clippy::unknown_clippy_lints)]
#![allow(clippy::mem_replace_with_default)]
#![allow(clippy::option_as_ref_deref)]
#![allow(clippy::cyclomatic_complexity)]
#![allow(clippy::cognitive_complexity)]
#![allow(clippy::redundant_closure)]
extern crate proc_macro;
extern crate proc_macro2;
#[macro_use]
extern crate syn;
#[macro_use]
extern crate quote;
mod ast;
mod attr;
mod bound;
mod clone;
mod cmp;
mod debug;
mod default;
mod hash;
mod matcher;
mod paths;
mod utils;
use proc_macro::TokenStream;
fn derive_impls(
input: &mut ast::Input,
errors: &mut proc_macro2::TokenStream,
) -> proc_macro2::TokenStream {
let mut tokens = proc_macro2::TokenStream::new();
if input.attrs.clone.is_some() {
tokens.extend(clone::derive_clone(input));
}
if input.attrs.copy.is_some() {
tokens.extend(clone::derive_copy(input));
}
if input.attrs.debug.is_some() {
tokens.extend(debug::derive(input));
}
if let Some(ref default) = input.attrs.default {
tokens.extend(default::derive(input, default));
}
if input.attrs.eq.is_some() {
tokens.extend(cmp::derive_eq(input));
}
if input.attrs.hash.is_some() {
tokens.extend(hash::derive(input));
}
if input.attrs.partial_eq.is_some() {
tokens.extend(cmp::derive_partial_eq(input));
}
if input.attrs.partial_ord.is_some() {
tokens.extend(cmp::derive_partial_ord(input, errors));
}
if input.attrs.ord.is_some() {
tokens.extend(cmp::derive_ord(input, errors));
}
tokens.extend(std::mem::replace(
errors,
Default::default(),
));
tokens
}
#[cfg_attr(not(test), proc_macro_derive(Derivative, attributes(derivative)))]
pub fn derivative(input: TokenStream) -> TokenStream {
let mut errors = proc_macro2::TokenStream::new();
let mut output = match syn::parse::<syn::DeriveInput>(input) {
Ok(parsed) => {
ast::Input::from_ast(&parsed, &mut errors)
.map(|mut input| derive_impls(&mut input, &mut errors))
.unwrap_or_default()
},
Err(error) => {
errors.extend(error.to_compile_error());
Default::default()
}
};
output.extend(errors);
output.into()
}