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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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23
compiler/rustc_builtin_macros/src/proc_macro_harness.rs
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@@ -108,11 +108,9 @@ impl<'a> CollectProcMacros<'a> {
}
fn collect_custom_derive(&mut self, item: &'a ast::Item, attr: &'a ast::Attribute) {
let (trait_name, proc_attrs) =
match parse_macro_name_and_helper_attrs(self.handler, attr, "derive") {
Some(name_and_attrs) => name_and_attrs,
None => return,
};
let Some((trait_name, proc_attrs)) = parse_macro_name_and_helper_attrs(self.handler, attr, "derive") else {
return;
};
if self.in_root && item.vis.kind.is_pub() {
self.macros.push(ProcMacro::Derive(ProcMacroDerive {
@@ -224,15 +222,12 @@ impl<'a> Visitor<'a> for CollectProcMacros<'a> {
}
}
let attr = match found_attr {
None => {
self.check_not_pub_in_root(&item.vis, self.source_map.guess_head_span(item.span));
let prev_in_root = mem::replace(&mut self.in_root, false);
visit::walk_item(self, item);
self.in_root = prev_in_root;
return;
}
Some(attr) => attr,
let Some(attr) = found_attr else {
self.check_not_pub_in_root(&item.vis, self.source_map.guess_head_span(item.span));
let prev_in_root = mem::replace(&mut self.in_root, false);
visit::walk_item(self, item);
self.in_root = prev_in_root;
return;
};
if !is_fn {