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Adopt let else in more places

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This commit is contained in:
est31
2022-02-19 00:48:49 +01:00
parent b8c56fa8c3
commit 2ef8af6619
132 changed files with 539 additions and 881 deletions
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21
compiler/rustc_passes/src/check_attr.rs
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@@ -1318,9 +1318,8 @@ impl CheckAttrVisitor<'_> {
return false;
}
let list = match attr.meta_item_list() {
None => return false,
Some(it) => it,
let Some(list) = attr.meta_item_list() else {
return false;
};
if matches!(&list[..], &[NestedMetaItem::Literal(Lit { kind: LitKind::Int(..), .. })]) {
@@ -1352,18 +1351,16 @@ impl CheckAttrVisitor<'_> {
return false;
}
let list = match attr.meta_item_list() {
let Some(list) = attr.meta_item_list() else {
// The attribute form is validated on AST.
None => return false,
Some(it) => it,
return false;
};
let (decl, generics) = match item {
Some(ItemLike::Item(Item {
kind: ItemKind::Fn(FnSig { decl, .. }, generics, _),
..
})) => (decl, generics),
_ => bug!("should be a function item"),
let Some(ItemLike::Item(Item {
kind: ItemKind::Fn(FnSig { decl, .. }, generics, _),
..
})) = item else {
bug!("should be a function item");
};
for param in generics.params {