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Fix ICE when trying to suggest Type<> instead of Type()

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This commit is contained in:
Esteban Küber 2019-11-13 14:45:52 -08:00
parent 695fe96517
commit 41372631ff
1 changed files with 10 additions and 9 deletions
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19
src/librustc/hir/lowering.rs
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@ -1860,15 +1860,16 @@ fn lower_path_segment(
if let Ok(snippet) = self.sess.source_map().span_to_snippet(data.span) {
// Do not suggest going from `Trait()` to `Trait<>`
if data.inputs.len() > 0 {
let split = snippet.find('(').unwrap();
let trait_name = &snippet[0..split];
let args = &snippet[split + 1 .. snippet.len() - 1];
err.span_suggestion(
data.span,
"use angle brackets instead",
format!("{}<{}>", trait_name, args),
Applicability::MaybeIncorrect,
);
if let Some(split) = snippet.find('(') {
let trait_name = &snippet[0..split];
let args = &snippet[split + 1 .. snippet.len() - 1];
err.span_suggestion(
data.span,
"use angle brackets instead",
format!("{}<{}>", trait_name, args),
Applicability::MaybeIncorrect,
);
}
}
};
err.emit();