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Improve error message

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This commit is contained in:
Nadrieril 2020-10-22 19:32:46 +01:00
parent c89d439bb5
commit 94ad5e1672
2 changed files with 35 additions and 20 deletions
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6
compiler/rustc_mir_build/src/thir/pattern/deconstruct_pat.rs
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@ -309,18 +309,18 @@ impl IntRange {
pcx.span,
|lint| {
let mut err = lint.build("multiple patterns overlap on their endpoints");
err.span_label(pcx.span, "overlapping range endpoints");
err.span_label(pcx.span, "... with this range");
for (int_range, span) in overlaps {
// Use the real type for user display of the ranges:
err.span_label(
span,
&format!(
"this range overlaps on `{}`",
"this range overlaps on `{}`...",
int_range.to_pat(pcx.cx.tcx, pcx.ty)
),
);
}
// FIXME: add note
err.note("this is likely to be a mistake");
err.emit();
},
);