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| author | leonardo.yvens <leoyvens@gmail.com> | 2018-03-05 15:58:54 -0300 |
|---|---|---|
| committer | leonardo.yvens <leoyvens@gmail.com> | 2018-03-05 15:58:54 -0300 |
| commit | 2e7e68b76223b9f14b54852584a5334f33a8798d (patch) | |
| tree | 6528892728b7d6aba50eb724542c09804fac5586 /src/libsyntax_pos/lib.rs | |
| parent | e2746d870017c869b84fc56ecd63f5e4f9646c96 (diff) | |
| download | rust-2e7e68b76223b9f14b54852584a5334f33a8798d.tar.gz rust-2e7e68b76223b9f14b54852584a5334f33a8798d.zip | |
while let all the things
Diffstat (limited to 'src/libsyntax_pos/lib.rs')
| -rw-r--r-- | src/libsyntax_pos/lib.rs | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/src/libsyntax_pos/lib.rs b/src/libsyntax_pos/lib.rs index 9f746adbe65..ed9eb5d5c92 100644 --- a/src/libsyntax_pos/lib.rs +++ b/src/libsyntax_pos/lib.rs @@ -322,12 +322,7 @@ impl Span { pub fn macro_backtrace(mut self) -> Vec<MacroBacktrace> { let mut prev_span = DUMMY_SP; let mut result = vec![]; - loop { - let info = match self.ctxt().outer().expn_info() { - Some(info) => info, - None => break, - }; - + while let Some(info) = self.ctxt().outer().expn_info() { let (pre, post) = match info.callee.format { ExpnFormat::MacroAttribute(..) => ("#[", "]"), ExpnFormat::MacroBang(..) => ("", "!"), |