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lint: add diagnostic translation migration lints

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Introduce allow-by-default lints for checking whether diagnostics are
written in `SessionDiagnostic`/`AddSubdiagnostic` impls and whether
diagnostics are translatable. These lints can be denied for modules once
they are fully migrated to impls and translation.

Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood 2022-06-10 15:50:06 +01:00
parent 52ee2a2738
commit 5ba81faba6
15 changed files with 327 additions and 37 deletions
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1
compiler/rustc_session/src/session.rs
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@ -209,6 +209,7 @@ pub struct PerfStats {
/// Trait implemented by error types. This should not be implemented manually. Instead, use
/// `#[derive(SessionDiagnostic)]` -- see [rustc_macros::SessionDiagnostic].
#[rustc_diagnostic_item = "SessionDiagnostic"]
pub trait SessionDiagnostic<'a, T: EmissionGuarantee = ErrorGuaranteed> {
/// Write out as a diagnostic out of `sess`.
#[must_use]