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Cancel emitting FCW lint if it is an edition fixing lint

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This commit is contained in:
Ryan Levick 2021-04-14 18:56:13 +02:00
parent aa4457fa5f
commit 43f9d0ae7e
1 changed files with 7 additions and 5 deletions
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12
compiler/rustc_middle/src/lint.rs
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@ -272,11 +272,13 @@ pub fn struct_lint_level<'s, 'd>(
// emit shouldn't be automatically fixed by rustfix.
err.allow_suggestions(false);
// If this is a future incompatible lint it'll become a hard error, so
// we have to emit *something*. Also, if this lint occurs in the
// expansion of a macro from an external crate, allow individual lints
// to opt-out from being reported.
if future_incompatible.is_none() && !lint.report_in_external_macro {
// If this is a future incompatible that is not an edition fixing lint
// it'll become a hard error, so we have to emit *something*. Also,
// if this lint occurs in the expansion of a macro from an external crate,
// allow individual lints to opt-out from being reported.
let not_future_incompatible =
future_incompatible.map(|f| f.edition.is_some()).unwrap_or(true);
if not_future_incompatible && !lint.report_in_external_macro {
err.cancel();
// Don't continue further, since we don't want to have
// `diag_span_note_once` called for a diagnostic that isn't emitted.