83 lines
1.4 KiB
Rust
83 lines
1.4 KiB
Rust
//@aux-build:proc_macros.rs:proc-macro
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#![warn(clippy::mut_mut)]
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#![allow(unused)]
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#![allow(
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clippy::no_effect,
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clippy::uninlined_format_args,
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clippy::unnecessary_operation,
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clippy::needless_pass_by_ref_mut
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)]
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extern crate proc_macros;
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use proc_macros::{external, inline_macros};
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fn fun(x: &mut &mut u32) -> bool {
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**x > 0
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}
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fn less_fun(x: *mut *mut u32) {
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let y = x;
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}
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macro_rules! mut_ptr {
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($p:expr) => {
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&mut $p
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};
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}
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#[allow(unused_mut, unused_variables)]
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#[inline_macros]
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fn main() {
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let mut x = &mut &mut 1u32;
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{
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let mut y = &mut x;
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}
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if fun(x) {
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let y: &mut &mut u32 = &mut &mut 2;
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**y + **x;
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}
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if fun(x) {
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let y: &mut &mut &mut u32 = &mut &mut &mut 2;
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***y + **x;
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}
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let mut z = inline!(&mut $(&mut 3u32));
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}
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fn issue939() {
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let array = [5, 6, 7, 8, 9];
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let mut args = array.iter().skip(2);
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for &arg in &mut args {
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println!("{}", arg);
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}
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let args = &mut args;
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for arg in args {
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println!(":{}", arg);
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}
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}
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fn issue6922() {
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// do not lint from an external macro
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external!(let mut_mut_ty: &mut &mut u32 = &mut &mut 1u32;);
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}
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mod issue9035 {
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use std::fmt::Display;
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struct Foo<'a> {
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inner: &'a mut dyn Display,
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}
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impl Foo<'_> {
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fn foo(&mut self) {
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let hlp = &mut self.inner;
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bar(hlp);
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}
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}
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fn bar(_: &mut impl Display) {}
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}
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