bfa5f27847
Currently, we deal with escape sequences twice: once when we lex a string, and a second time when we unescape literals. This PR aims to remove this duplication, by introducing a new `unescape` mode as a single source of truth for character escaping rules
89 lines
2.5 KiB
Plaintext
89 lines
2.5 KiB
Plaintext
error: unicode escape sequences cannot be used as a byte or in a byte string
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--> $DIR/issue-23620-invalid-escapes.rs:4:15
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LL | let _ = b"\u{a66e}";
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| ^^^^^^^^
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error: unicode escape sequences cannot be used as a byte or in a byte string
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--> $DIR/issue-23620-invalid-escapes.rs:7:15
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LL | let _ = b'\u{a66e}';
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| ^^^^^^^^
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error: incorrect unicode escape sequence
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--> $DIR/issue-23620-invalid-escapes.rs:10:15
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LL | let _ = b'\u';
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| ^^ incorrect unicode escape sequence
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= help: format of unicode escape sequences is `\u{...}`
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error: numeric character escape is too short
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--> $DIR/issue-23620-invalid-escapes.rs:13:15
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LL | let _ = b'\x5';
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| ^^^
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error: invalid character in numeric character escape: x
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--> $DIR/issue-23620-invalid-escapes.rs:16:17
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LL | let _ = b'\xxy';
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| ^
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error: numeric character escape is too short
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--> $DIR/issue-23620-invalid-escapes.rs:19:14
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LL | let _ = '\x5';
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| ^^^
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error: invalid character in numeric character escape: x
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--> $DIR/issue-23620-invalid-escapes.rs:22:16
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LL | let _ = '\xxy';
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| ^
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error: unicode escape sequences cannot be used as a byte or in a byte string
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--> $DIR/issue-23620-invalid-escapes.rs:25:15
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LL | let _ = b"\u{a4a4} \xf \u";
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| ^^^^^^^^
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error: invalid character in numeric character escape:
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--> $DIR/issue-23620-invalid-escapes.rs:25:27
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LL | let _ = b"\u{a4a4} \xf \u";
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| ^
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error: incorrect unicode escape sequence
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--> $DIR/issue-23620-invalid-escapes.rs:25:28
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LL | let _ = b"\u{a4a4} \xf \u";
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| ^^ incorrect unicode escape sequence
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= help: format of unicode escape sequences is `\u{...}`
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error: invalid character in numeric character escape:
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--> $DIR/issue-23620-invalid-escapes.rs:30:17
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LL | let _ = "\xf \u";
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| ^
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error: incorrect unicode escape sequence
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--> $DIR/issue-23620-invalid-escapes.rs:30:18
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LL | let _ = "\xf \u";
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| ^^ incorrect unicode escape sequence
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= help: format of unicode escape sequences is `\u{...}`
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error: incorrect unicode escape sequence
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--> $DIR/issue-23620-invalid-escapes.rs:34:14
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LL | let _ = "\u8f";
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| ^^--
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| |
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| help: format of unicode escape sequences uses braces: `\u{8f}`
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error: aborting due to 13 previous errors
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