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Improve diagnostic on {_} in format string

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David Tolnay 2024-11-04 22:00:42 -05:00
parent 4a79e0121e
commit 58cc36e69f
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2 changed files with 6 additions and 4 deletions
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impl/src/fmt.rs
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@ -78,7 +78,7 @@ impl Display<'_> {
let formatvar = match &member {
MemberUnraw::Unnamed(index) => IdentUnraw::new(format_ident!("__field{}", index)),
MemberUnraw::Named(ident) => {
if user_named_args.contains(ident) {
if user_named_args.contains(ident) || ident == "_" {
// Refers to a named argument written by the user, not to field.
out += &ident.to_string();
continue;