From fddd576b1183e394cdfb47f074fe7918a37644b6 Mon Sep 17 00:00:00 2001
From: Adriaan Moors <adriaan.moors@epfl.ch>
Date: Thu, 24 May 2012 11:33:34 +0200
Subject: don't check exhaustivity involving user-defined unapplySeq

---
 src/compiler/scala/tools/nsc/typechecker/PatternMatching.scala | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src')

diff --git a/src/compiler/scala/tools/nsc/typechecker/PatternMatching.scala b/src/compiler/scala/tools/nsc/typechecker/PatternMatching.scala
index 4d66fb5617..b9aa2c73fd 100644
--- a/src/compiler/scala/tools/nsc/typechecker/PatternMatching.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/PatternMatching.scala
@@ -1973,6 +1973,7 @@ trait PatternMatching extends Transform with TypingTransformers with ast.TreeDSL
               case Some(0) if testedBinder.tpe.typeSymbol == ListClass => // extractor.symbol.owner == SeqFactory
                 EqualityCond(binderToUniqueTree(p.prevBinder), unique(Ident(NilModule) setType NilModule.tpe))
               case _ =>
+                backoff = true
                 super.treeMakerToCond(tm)
             }
           case ExtractorTreeMaker(_, _, _, _) =>
-- 
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