diff options
| -rw-r--r-- | compiler/rustc_ast_pretty/src/pp.rs | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/compiler/rustc_ast_pretty/src/pp.rs b/compiler/rustc_ast_pretty/src/pp.rs index 8d58eaa82a7..b2870ac2734 100644 --- a/compiler/rustc_ast_pretty/src/pp.rs +++ b/compiler/rustc_ast_pretty/src/pp.rs @@ -379,8 +379,7 @@ impl Printer { } fn check_stack(&mut self, k: usize) { - if !self.scan_stack.is_empty() { - let x = *self.scan_stack.front().unwrap(); + if let Some(&x) = self.scan_stack.front() { match self.buf[x].token { Token::Begin(_) => { if k > 0 { |