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Add level arg to into_diagnostic.

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And make all hand-written `IntoDiagnostic` impls generic, by using
`DiagnosticBuilder::new(dcx, level, ...)` instead of e.g.
`dcx.struct_err(...)`.

This means the `create_*` functions are the source of the error level.
This change will let us remove `struct_diagnostic`.

Note: `#[rustc_lint_diagnostics]` is added to `DiagnosticBuilder::new`,
it's necessary to pass diagnostics tests now that it's used in
`into_diagnostic` functions.
This commit is contained in:
Nicholas Nethercote 2023-12-18 14:12:39 +11:00
parent 31df50c897
commit e7724a2e31
24 changed files with 307 additions and 288 deletions
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8
compiler/rustc_mir_transform/src/errors.rs
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@ -2,7 +2,7 @@ use std::borrow::Cow;
use rustc_errors::{
Applicability, DecorateLint, DiagCtxt, DiagnosticArgValue, DiagnosticBuilder,
DiagnosticMessage, EmissionGuarantee, ErrorGuaranteed, IntoDiagnostic,
DiagnosticMessage, EmissionGuarantee, IntoDiagnostic, Level,
};
use rustc_macros::{Diagnostic, LintDiagnostic, Subdiagnostic};
use rustc_middle::mir::{AssertKind, UnsafetyViolationDetails};
@ -62,10 +62,10 @@ pub(crate) struct RequiresUnsafe {
// so we need to eagerly translate the label here, which isn't supported by the derive API
// We could also exhaustively list out the primary messages for all unsafe violations,
// but this would result in a lot of duplication.
impl<'sess> IntoDiagnostic<'sess> for RequiresUnsafe {
impl<'a, G: EmissionGuarantee> IntoDiagnostic<'a, G> for RequiresUnsafe {
#[track_caller]
fn into_diagnostic(self, dcx: &'sess DiagCtxt) -> DiagnosticBuilder<'sess, ErrorGuaranteed> {
let mut diag = dcx.struct_err(fluent::mir_transform_requires_unsafe);
fn into_diagnostic(self, dcx: &'a DiagCtxt, level: Level) -> DiagnosticBuilder<'a, G> {
let mut diag = DiagnosticBuilder::new(dcx, level, fluent::mir_transform_requires_unsafe);
diag.code(rustc_errors::DiagnosticId::Error("E0133".to_string()));
diag.set_span(self.span);
diag.span_label(self.span, self.details.label());