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macros: support translatable labels

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Extends support for generating `DiagnosticMessage::FluentIdentifier`
messages from `SessionDiagnostic` derive to `#[label]`.

Signed-off-by: David Wood <david.wood@huawei.com>
This commit is contained in:
David Wood
2022-03-31 10:24:46 +01:00
parent 72dec56028
commit a88717cef0
8 changed files with 140 additions and 95 deletions
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2
compiler/rustc_errors/src/diagnostic_builder.rs
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@@ -408,7 +408,7 @@ impl<'a, G: EmissionGuarantee> DiagnosticBuilder<'a, G> {
/// the diagnostic was constructed. However, the label span is *not* considered a
/// ["primary span"][`MultiSpan`]; only the `Span` supplied when creating the diagnostic is
/// primary.
pub fn span_label(&mut self, span: Span, label: impl Into<String>) -> &mut Self);
pub fn span_label(&mut self, span: Span, label: impl Into<DiagnosticMessage>) -> &mut Self);
forward!(
/// Labels all the given spans with the provided label.