df1f415305
macros: `LintDiagnostic` derive - Move `LintDiagnosticBuilder` into `rustc_errors` so that a diagnostic derive can refer to it. - Introduce a `DecorateLint` trait, which is equivalent to `SessionDiagnostic` or `AddToDiagnostic` but for lints. Necessary without making more changes to the lint infrastructure as `DecorateLint` takes a `LintDiagnosticBuilder` and re-uses all of the existing logic for determining what type of diagnostic a lint should be emitted as (e.g. error/warning). - Various refactorings of the diagnostic derive machinery (extracting `build_field_mapping` helper and moving `sess` field out of the `DiagnosticDeriveBuilder`). - Introduce a `LintDiagnostic` derive macro that works almost exactly like the `SessionDiagnostic` derive macro except that it derives a `DecorateLint` implementation instead. A new derive is necessary for this because `SessionDiagnostic` is intended for when the generated code creates the diagnostic. `AddToDiagnostic` could have been used but it would have required more changes to the lint machinery. ~~At time of opening this pull request, ignore all of the commits from #98624, it's just the last few commits that are new.~~ r? `@oli-obk` |
||
|---|---|---|
| .. | ||
| src | ||
| Cargo.toml | ||