74 lines
1.7 KiB
Rust
74 lines
1.7 KiB
Rust
// compile-flags: --emit=link
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// no-prefer-dynamic
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#![crate_type = "proc-macro"]
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#![feature(repr128, proc_macro_quote)]
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#![allow(incomplete_features)]
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#![allow(clippy::field_reassign_with_default)]
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#![allow(clippy::eq_op)]
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extern crate proc_macro;
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use proc_macro::{quote, TokenStream};
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#[proc_macro_derive(DeriveSomething)]
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pub fn derive(_: TokenStream) -> TokenStream {
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// Shound not trigger `used_underscore_binding`
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let _inside_derive = 1;
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assert_eq!(_inside_derive, _inside_derive);
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let output = quote! {
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// Should not trigger `useless_attribute`
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#[allow(dead_code)]
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extern crate rustc_middle;
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};
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output
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}
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#[proc_macro_derive(FieldReassignWithDefault)]
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pub fn derive_foo(_input: TokenStream) -> TokenStream {
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quote! {
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#[derive(Default)]
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struct A {
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pub i: i32,
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pub j: i64,
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}
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#[automatically_derived]
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fn lint() {
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let mut a: A = Default::default();
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a.i = 42;
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a;
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}
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}
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}
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#[proc_macro_derive(StructAUseSelf)]
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pub fn derive_use_self(_input: TokenStream) -> proc_macro::TokenStream {
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quote! {
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struct A;
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impl A {
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fn new() -> A {
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A
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}
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}
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}
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}
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#[proc_macro_derive(ClippyMiniMacroTest)]
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pub fn mini_macro(_: TokenStream) -> TokenStream {
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quote!(
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#[allow(unused)]
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fn needless_take_by_value(s: String) {
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println!("{}", s.len());
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}
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#[allow(unused)]
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fn needless_loop(items: &[u8]) {
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for i in 0..items.len() {
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println!("{}", items[i]);
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}
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}
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fn line_wrapper() {
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println!("{}", line!());
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}
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)
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}
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