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Fix span for unicode escape suggestion. #77587

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merged 1 commit into from
Oct 6, 2020
Merged

Fix span for unicode escape suggestion. #77587

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5 changes: 2 additions & 3 deletions compiler/rustc_parse/src/lexer/unescape_error_reporting.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -181,10 +181,9 @@ pub(crate) fn emit_unescape_error(

if suggestion_len > 0 {
suggestion.push('}');
let lo = char_span.lo();
let hi = lo + BytePos(suggestion_len as u32);
let hi = char_span.lo() + BytePos(suggestion_len as u32);
diag.span_suggestion(
span.with_lo(lo).with_hi(hi),
span.with_hi(hi),
"format of unicode escape sequences uses braces",
suggestion,
Applicability::MaybeIncorrect,
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4 changes: 1 addition & 3 deletions src/test/ui/fmt/format-string-error-2.stderr
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Expand Up @@ -2,9 +2,7 @@ error: incorrect unicode escape sequence
--> $DIR/format-string-error-2.rs:77:20
|
LL | println!("\x7B}\u8 {", 1);
| ^^-
| |
| help: format of unicode escape sequences uses braces: `\u{8}`
| ^^^ help: format of unicode escape sequences uses braces: `\u{8}`

error: invalid format string: expected `'}'`, found `'a'`
--> $DIR/format-string-error-2.rs:5:5
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6 changes: 3 additions & 3 deletions src/test/ui/parser/issue-23620-invalid-escapes.stderr
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Expand Up @@ -80,9 +80,9 @@ error: incorrect unicode escape sequence
--> $DIR/issue-23620-invalid-escapes.rs:32:14
|
LL | let _ = "\u8f";
| ^^--
| |
| help: format of unicode escape sequences uses braces: `\u{8f}`
| ^^^-
| |
| help: format of unicode escape sequences uses braces: `\u{8f}`

error: aborting due to 13 previous errors