mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-12-23 11:33:19 +00:00
37 lines
1.1 KiB
Rust
37 lines
1.1 KiB
Rust
// no-prefer-dynamic
|
|
|
|
#![crate_type = "proc-macro"]
|
|
#![feature(repr128, proc_macro_hygiene, proc_macro_quote)]
|
|
#![allow(clippy::useless_conversion)]
|
|
|
|
extern crate proc_macro;
|
|
extern crate quote;
|
|
extern crate syn;
|
|
|
|
use proc_macro::TokenStream;
|
|
use quote::{quote, quote_spanned};
|
|
use syn::parse_macro_input;
|
|
use syn::{parse_quote, ItemTrait, TraitItem};
|
|
|
|
#[proc_macro_attribute]
|
|
pub fn fake_async_trait(_args: TokenStream, input: TokenStream) -> TokenStream {
|
|
let mut item = parse_macro_input!(input as ItemTrait);
|
|
for inner in &mut item.items {
|
|
if let TraitItem::Method(method) = inner {
|
|
let sig = &method.sig;
|
|
let block = &mut method.default;
|
|
if let Some(block) = block {
|
|
let brace = block.brace_token;
|
|
|
|
let my_block = quote_spanned!( brace.span => {
|
|
// Should not trigger `empty_line_after_outer_attr`
|
|
#[crate_type = "lib"]
|
|
#sig #block
|
|
Vec::new()
|
|
});
|
|
*block = parse_quote!(#my_block);
|
|
}
|
|
}
|
|
}
|
|
TokenStream::from(quote!(#item))
|
|
}
|