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Fix #107998, avoid ICE when the generic_span is empty

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This commit is contained in:
yukang 2023-02-13 17:20:38 +00:00
parent 5348a89a77
commit 3180f1c828
3 changed files with 48 additions and 1 deletions
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10
compiler/rustc_lint/src/context.rs
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@ -837,9 +837,17 @@ pub trait LintContext: Sized {
(use_span, "'_".to_owned())
};
debug!(?deletion_span, ?use_span);
// issue 107998 for the case such as a wrong function pointer type
// `deletion_span` is empty and there is no need to report lifetime uses here
let suggestions = if deletion_span.is_empty() {
vec![(use_span, replace_lt)]
} else {
vec![(deletion_span, String::new()), (use_span, replace_lt)]
};
db.multipart_suggestion(
msg,
vec![(deletion_span, String::new()), (use_span, replace_lt)],
suggestions,
Applicability::MachineApplicable,
);
}