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avoid many &str to String conversions with MultiSpan::push_span_label

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This commit is contained in:
Takayuki Maeda 2022-06-29 21:16:43 +09:00
parent 0e1a6fb463
commit 6212e6b339
17 changed files with 38 additions and 66 deletions
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11
compiler/rustc_parse/src/parser/mod.rs
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@ -887,22 +887,19 @@ impl<'a> Parser<'a> {
let mut first_note = MultiSpan::from(vec![initial_semicolon]);
first_note.push_span_label(
initial_semicolon,
"this `;` turns the preceding closure into a statement".to_string(),
"this `;` turns the preceding closure into a statement",
);
first_note.push_span_label(
closure_spans.body,
"this expression is a statement because of the trailing semicolon".to_string(),
"this expression is a statement because of the trailing semicolon",
);
expect_err.span_note(first_note, "statement found outside of a block");
let mut second_note = MultiSpan::from(vec![closure_spans.whole_closure]);
second_note.push_span_label(
closure_spans.whole_closure,
"this is the parsed closure...".to_string(),
);
second_note.push_span_label(closure_spans.whole_closure, "this is the parsed closure...");
second_note.push_span_label(
following_token_span,
"...but likely you meant the closure to end here".to_string(),
"...but likely you meant the closure to end here",
);
expect_err.span_note(second_note, "the closure body may be incorrectly delimited");