From 6c164a5d906c657baa045c1d564c63273eb65f31 Mon Sep 17 00:00:00 2001
From: Martin Odersky <odersky@gmail.com>
Date: Tue, 21 Feb 2017 17:50:05 +0100
Subject: Extend argument pretyping to case-closures

---
 compiler/src/dotty/tools/dotc/ast/TreeInfo.scala | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'compiler/src/dotty/tools/dotc/ast/TreeInfo.scala')

diff --git a/compiler/src/dotty/tools/dotc/ast/TreeInfo.scala b/compiler/src/dotty/tools/dotc/ast/TreeInfo.scala
index bcda4b92f..e48b1039b 100644
--- a/compiler/src/dotty/tools/dotc/ast/TreeInfo.scala
+++ b/compiler/src/dotty/tools/dotc/ast/TreeInfo.scala
@@ -287,6 +287,8 @@ trait UntypedTreeInfo extends TreeInfo[Untyped] { self: Trees.Instance[Untyped]
         case ValDef(_, tpt, _) => tpt.isEmpty
         case _ => false
       }
+    case Match(EmptyTree, _) =>
+      true
     case _ => false
   }
 
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