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Index a single time in check_stack

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David Tolnay 2022-01-18 19:21:18 -08:00
parent a37d272892
commit 377c9dbabf
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1 changed files with 5 additions and 4 deletions
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9
compiler/rustc_ast_pretty/src/pp.rs
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@ -380,24 +380,25 @@ impl Printer {
fn check_stack(&mut self, mut k: usize) {
while let Some(&x) = self.scan_stack.front() {
match self.buf[x].token {
let mut entry = &mut self.buf[x];
match entry.token {
Token::Begin(_) => {
if k == 0 {
break;
}
self.scan_stack.pop_front().unwrap();
self.buf[x].size += self.right_total;
entry.size += self.right_total;
k -= 1;
}
Token::End => {
// paper says + not =, but that makes no sense.
self.scan_stack.pop_front().unwrap();
self.buf[x].size = 1;
entry.size = 1;
k += 1;
}
_ => {
self.scan_stack.pop_front().unwrap();
self.buf[x].size += self.right_total;
entry.size += self.right_total;
if k == 0 {
break;
}