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lint: port anonymous parameter diagnostics

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Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood 2022-06-28 11:31:44 +01:00
parent 284ec37810
commit 18a48c1d6c
2 changed files with 11 additions and 12 deletions
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3
compiler/rustc_error_messages/locales/en-US/lint.ftl
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@ -331,3 +331,6 @@ lint-builtin-missing-copy-impl = type could implement `Copy`; consider adding `i
lint-builtin-missing-debug-impl = lint-builtin-missing-debug-impl =
type does not implement `{$debug}`; consider adding `#[derive(Debug)]` or a manual implementation type does not implement `{$debug}`; consider adding `#[derive(Debug)]` or a manual implementation
lint-builtin-anonymous-params = anonymous parameters are deprecated and will be removed in the next edition
.suggestion = try naming the parameter or explicitly ignoring it

20
compiler/rustc_lint/src/builtin.rs
View file

@ -937,18 +937,14 @@ impl EarlyLintPass for AnonymousParameters {
("<type>", Applicability::HasPlaceholders) ("<type>", Applicability::HasPlaceholders)
}; };
lint.build( lint.build(fluent::lint::builtin_anonymous_params)
"anonymous parameters are deprecated and will be \ .span_suggestion(
removed in the next edition", arg.pat.span,
) fluent::lint::suggestion,
.span_suggestion( format!("_: {}", ty_snip),
arg.pat.span, appl,
"try naming the parameter or explicitly \ )
ignoring it", .emit();
format!("_: {}", ty_snip),
appl,
)
.emit();
}) })
} }
} }