X-Git-Url: https://git.lizzy.rs/?a=blobdiff_plain;f=src%2Flibrustc%2Fhir%2Fmod.rs;h=64d22ae9435712dbdf4be923e25c8274bc15f2d8;hb=6d523ee501a1ae30428d22ce4fc3c1f720e896e6;hp=1f605711c8a8e97bc6630ac20dc30e3f0b77de67;hpb=a449535bbc7912c4adc1bbf2ab2738d0442f212c;p=rust.git

diff --git a/src/librustc/hir/mod.rs b/src/librustc/hir/mod.rs
index 1f605711c8a..64d22ae9435 100644
--- a/src/librustc/hir/mod.rs
+++ b/src/librustc/hir/mod.rs
@@ -1749,6 +1749,20 @@ pub enum MatchSource {
     AwaitDesugar,
 }
 
+impl MatchSource {
+    pub fn name(self) -> &'static str {
+        use MatchSource::*;
+        match self {
+            Normal => "match",
+            IfDesugar { .. } | IfLetDesugar { .. } => "if",
+            WhileDesugar | WhileLetDesugar => "while",
+            ForLoopDesugar => "for",
+            TryDesugar => "?",
+            AwaitDesugar => ".await",
+        }
+    }
+}
+
 /// The loop type that yielded an `ExprKind::Loop`.
 #[derive(Copy, Clone, PartialEq, RustcEncodable, RustcDecodable, Debug, HashStable)]
 pub enum LoopSource {
@@ -1766,8 +1780,7 @@ impl LoopSource {
     pub fn name(self) -> &'static str {
         match self {
             LoopSource::Loop => "loop",
-            LoopSource::While => "while",
-            LoopSource::WhileLet => "while let",
+            LoopSource::While | LoopSource::WhileLet => "while",
             LoopSource::ForLoop => "for",
         }
     }