2d91c6d1bf
Currently it's used for two dynamic checks: - When a diagnostic is emitted, has it been emitted before? - When a diagnostic is dropped, has it been emitted/cancelled? The first check is no longer need, because `emit` is consuming, so it's impossible to emit a `DiagnosticBuilder` twice. The second check is still needed. This commit replaces `DiagnosticBuilderState` with a simpler `Option<Box<Diagnostic>>`, which is enough for the second check: functions like `emit` and `cancel` can take the `Diagnostic` and then `drop` can check that the `Diagnostic` was taken. The `DiagCtxt` reference from `DiagnosticBuilderState` is now stored as its own field, removing the need for the `dcx` method. As well as making the code shorter and simpler, the commit removes: - One (deprecated) `ErrorGuaranteed::unchecked_claim_error_was_emitted` call. - Two `FIXME(eddyb)` comments that are no longer relevant. - The use of a dummy `Diagnostic` in `into_diagnostic`. Nice! |
||
|---|---|---|
| .. | ||
| src | ||
| Cargo.toml | ||
| messages.ftl | ||