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rustc_errors: fix a few bugs

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Ariel Ben-Yehuda 2016-07-21 20:12:04 +03:00 • committed by Ariel Ben-Yehuda
parent f3ee99bd4d
commit 1e4f6d5683
1 changed files with 5 additions and 3 deletions
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8
src/librustc_errors/lib.rs
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@ -531,10 +531,12 @@ impl Handler {
DiagnosticBuilder::new(self, Level::Fatal, msg)
}
pub fn cancel(&mut self, err: &mut DiagnosticBuilder) {
pub fn cancel(&self, err: &mut DiagnosticBuilder) {
if err.level == Level::Error || err.level == Level::Fatal {
assert!(self.has_errors());
self.err_count.set(self.err_count.get() + 1);
self.err_count.set(
self.err_count.get().checked_sub(1)
.expect("cancelled an error but err_count is 0")
);
}
err.cancel();
}