parse_format: treat r" as a literal #81828
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r? @estebank (rust-highfive has picked a reviewer for you, use r? to override) |
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cc @mbartlett21 who reported original comment. |
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@bors r+ rollup |
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📌 Commit 04a19b9 has been approved by |
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Feb 8, 2021
Rollup of 9 pull requests Successful merges: - rust-lang#71531 (Move treat err as bug tests to ui) - rust-lang#81356 (libtest: allow multiple filters) - rust-lang#81735 (faster few span methods) - rust-lang#81779 (improve error message for disallowed ptr-to-int casts in const eval) - rust-lang#81817 (Add option to emit compiler stderr per bitwidth.) - rust-lang#81828 (parse_format: treat r" as a literal) - rust-lang#81840 (fix formatting of std::iter::Map) - rust-lang#81861 (Show MIR bytes separately in -Zmeta-stats output) - rust-lang#81865 (Clean up weird Option mapping) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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This PR changes
format_args!internal parsing machinery to treat raw strings startingr"as a literal.Currently
"andr#are recognised as valid starting combinations for string literals, butr"is not.This was noticed when debugging #67984 (comment)
As well as fixing the behavior observed in that comment, this improves diagnostic spans for
r"formatting strings.