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Fully clear HandlerInner in Handler::reset_err_count #64978

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Oct 2, 2019
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Fully clear HandlerInner in Handler::reset_err_count #64978

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13 changes: 8 additions & 5 deletions src/librustc_errors/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -469,14 +469,17 @@ impl Handler {
/// NOTE: *do not* call this function from rustc. It is only meant to be called from external
/// tools that want to reuse a `Parser` cleaning the previously emitted diagnostics as well as
/// the overall count of emitted error diagnostics.
// FIXME: this does not clear inner entirely
pub fn reset_err_count(&self) {
let mut inner = self.inner.borrow_mut();
// actually frees the underlying memory (which `clear` would not do)
inner.emitted_diagnostics = Default::default();
inner.deduplicated_err_count = 0;
inner.err_count = 0;
inner.stashed_diagnostics.clear();
inner.deduplicated_err_count = 0;

// actually free the underlying memory (which `clear` would not do)
inner.delayed_span_bugs = Default::default();
inner.taught_diagnostics = Default::default();
inner.emitted_diagnostic_codes = Default::default();
inner.emitted_diagnostics = Default::default();
inner.stashed_diagnostics = Default::default();
}

/// Stash a given diagnostic with the given `Span` and `StashKey` as the key for later stealing.
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