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Wrong unexpected token diagnostic when passing negative numbers to concat! #19417

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vdrn opened this issue Mar 22, 2025 · 1 comment · May be fixed by #19434
Open

Wrong unexpected token diagnostic when passing negative numbers to concat! #19417

vdrn opened this issue Mar 22, 2025 · 1 comment · May be fixed by #19434
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@vishruth-thimmaiah
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A-macro macro expansion C-bug Category: bug

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@vdrn
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vdrn commented Mar 22, 2025 •
edited by rustbot
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This code compiles fine with rustc, but rust analyzer reports error: unexpected token

 pub const T: &str = concat!(-42.0);

rust-analyzer version: 1.87.0-nightly (be73c1f 2025-03-21)

rustc version: rustc 1.87.0-nightly (be73c1f46 2025-03-21)
@vdrn vdrn added the C-bug Category: bug label Mar 22, 2025
@vdrn vdrn mentioned this issue Mar 22, 2025
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@ShoyuVanilla ShoyuVanilla added the A-macro macro expansion label Mar 22, 2025
@vishruth-thimmaiah vishruth-thimmaiah linked a pull request Mar 23, 2025 that will close this issue
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yarrow added a commit to yarrow/ical-jiff that referenced this issue Apr 12, 2025
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Work around a Rust Analyzer bug
e147236 
Title: Wrong unexpected token diagnostic when passing negative numbers to concat!
Link: rust-lang/rust-analyzer#19417
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A-macro macro expansion C-bug Category: bug
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fix: negative nums in concat! expansion vishruth-thimmaiah/rust-analyzer
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