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| -rw-r--r-- | src/doc/rustc-dev-guide/src/tests/ui.md | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/doc/rustc-dev-guide/src/tests/ui.md b/src/doc/rustc-dev-guide/src/tests/ui.md index 3402838da87..25d3efdbb82 100644 --- a/src/doc/rustc-dev-guide/src/tests/ui.md +++ b/src/doc/rustc-dev-guide/src/tests/ui.md @@ -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 |