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rust/compiler/rustc_codegen_ssa
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bors c74925438c Auto merge of #95149 - cjgillot:once-diag, r=estebank 
Remove `Session::one_time_diagnostic`

This is untracked mutable state, which modified the behaviour of queries.
It was used for 2 things: some full-blown errors, but mostly for lint declaration notes ("the lint level is defined here" notes).

It is replaced by the diagnostic deduplication infra which already exists in the diagnostic emitter.
A new diagnostic level `OnceNote` is introduced specifically for lint notes, to deduplicate subdiagnostics.

As a drive-by, diagnostic emission takes a `&mut` to allow dropping the `SubDiagnostic`s.
2022-03-26 00:54:54 +00:00
..
src Auto merge of #95149 - cjgillot:once-diag, r=estebank 2022-03-26 00:54:54 +00:00
Cargo.toml Update itertools 2022-03-04 11:54:28 -06:00
README.md mv compiler to compiler/ 2020-08-30 18:45:07 +03:00

README.md

Please read the rustc-dev-guide chapter on Backend Agnostic Codegen.