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allow or avoid for loops over option in compiler and tests

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Maybe Waffle 2022-07-26 14:17:15 +04:00
parent 8ca57b54c1
commit 0250f0244b
3 changed files with 14 additions and 15 deletions
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14
compiler/rustc_ast/src/visit.rs
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@ -244,14 +244,12 @@ pub trait Visitor<'ast>: Sized {
#[macro_export]
macro_rules! walk_list {
($visitor: expr, $method: ident, $list: expr) => {
for elem in $list {
$visitor.$method(elem)
}
};
($visitor: expr, $method: ident, $list: expr, $($extra_args: expr),*) => {
for elem in $list {
$visitor.$method(elem, $($extra_args,)*)
($visitor: expr, $method: ident, $list: expr $(, $($extra_args: expr),* )?) => {
{
#[cfg_attr(not(bootstrap), allow(for_loop_over_fallibles))]
for elem in $list {
$visitor.$method(elem $(, $($extra_args,)* )?)
}
}
}
}