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Add description to field and method

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This commit is contained in:
Esteban Küber 2018-01-25 11:40:33 -08:00
parent 482f7f1978
commit 2b73733496
1 changed files with 8 additions and 0 deletions
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8
src/librustc_errors/lib.rs
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@ -244,6 +244,10 @@ pub struct Handler {
continue_after_error: Cell<bool>,
delayed_span_bug: RefCell<Option<Diagnostic>>,
tracked_diagnostics: RefCell<Option<Vec<Diagnostic>>>,
// This set contains the `DiagnosticId` of all emitted diagnostics to avoid
// emitting the same diagnostic with extended help (`--teach`) twice, which
// would be uneccessary repetition.
tracked_diagnostic_codes: RefCell<FxHashSet<DiagnosticId>>,
// This set contains a hash of every diagnostic that has been emitted by
@ -577,6 +581,10 @@ impl Handler {
(ret, diagnostics)
}
/// `true` if a diagnostic with this code has already been emitted in this handler.
///
/// Used to suppress emitting the same error multiple times with extended explanation when
/// calling `-Zteach`.
pub fn code_emitted(&self, code: &DiagnosticId) -> bool {
self.tracked_diagnostic_codes.borrow().contains(code)
}