2d7795dfb9
No longer track "zero-width" chars in `SourceMap`, read directly from the line when calculating the `display_col` of a `BytePos`. Move `char_width` to `rustc_span` and use it from the emitter.
This change allows the following to properly align in terminals (depending on the font, the replaced control codepoints are rendered as 1 or 2 width, on my terminal they are rendered as 1, on VSCode text they are rendered as 2):
```
error: this file contains an unclosed delimiter
--> $DIR/issue-68629.rs:5:17
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LL | ␜␟ts␀![{i
| -- unclosed delimiter
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| unclosed delimiter
LL | ␀␀ fn rݻoa>rݻm
| ^
```
60 lines
1.0 KiB
Plaintext
60 lines
1.0 KiB
Plaintext
error: character constant must be escaped: `'`
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--> $DIR/bad-char-literals.rs:6:6
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LL | ''';
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| ^
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help: escape the character
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LL | '\'';
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| ~~
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error: character constant must be escaped: `\n`
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--> $DIR/bad-char-literals.rs:10:6
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LL | '
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| ______^
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LL | | ';
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| |_
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help: escape the character
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LL | '\n';
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| ++
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error: character constant must be escaped: `\r`
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--> $DIR/bad-char-literals.rs:15:6
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LL | '␍';
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| ^
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help: escape the character
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LL | '\r';
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| ++
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error: character literal may only contain one codepoint
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--> $DIR/bad-char-literals.rs:18:5
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LL | '-␀-';
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| ^^^^^
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help: if you meant to write a string literal, use double quotes
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LL | "-␀-";
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| ~ ~
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error: character constant must be escaped: `\t`
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--> $DIR/bad-char-literals.rs:21:6
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LL | ' ';
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| ^^^^
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help: escape the character
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LL | '\t';
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| ++
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error: aborting due to 5 previous errors
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