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account for use of index-based lifetime names in print of binder

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b-naber 2022-09-28 12:31:08 +02:00
parent 837bf370de
commit 4fdc78e6bf
1 changed files with 10 additions and 4 deletions
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14
compiler/rustc_middle/src/ty/print/pretty.rs
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@ -2173,10 +2173,16 @@ impl<'tcx> FmtPrinter<'_, 'tcx> {
let mut region_index = self.region_index;
let mut next_name = |this: &Self| {
let name = name_by_region_index(region_index, &mut available_names, num_available);
debug!(?name);
region_index += 1;
assert!(!this.used_region_names.contains(&name));
let mut name;
loop {
name = name_by_region_index(region_index, &mut available_names, num_available);
region_index += 1;
if !this.used_region_names.contains(&name) {
break;
}
}
name
};