From 2e7e68b76223b9f14b54852584a5334f33a8798d Mon Sep 17 00:00:00 2001
From: "leonardo.yvens" <leoyvens@gmail.com>
Date: Mon, 5 Mar 2018 15:58:54 -0300
Subject: while let all the things

---
 src/libsyntax_pos/lib.rs | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'src/libsyntax_pos')

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(..) => ("", "!"),
-- 
cgit 1.4.1-3-g733a5