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expand meaning of ~? diagnostic annotation

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Tshepang Mbambo 2025-06-04 00:26:47 +02:00
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8
src/doc/rustc-dev-guide/src/tests/ui.md
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@ -220,8 +220,12 @@ negligible (i.e. there is no semantic difference between `//~ ERROR` and
`//~ERROR` although the former is more common in the codebase).
`~? <diagnostic kind>` (example being `~? ERROR`)
is used to match diagnostics without line information.
These can be placed on any line in the test file, but are conventionally placed at the end.
is used to match diagnostics _without_ line info at all,
or where the line info is outside the main test file[^main test file].
These annotations can be placed on any line in the test file.
[^main test file]: This is a file that has the `~?` annotations,
as distinct from aux files, or sources that we have no control over.
### Error annotation examples