Merge pull request dlang#805 from donc/regression7681

Fix issue 7681 Regression(2.059head):ICE:opCatAssign(delegate) to undefi...
quickfur · Mar 15, 2012 · bd5f360 · bd5f360
2 parents 46ea6e9 + 5153797
commit bd5f360
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diff --git a/src/expression.c b/src/expression.c
@@ -10313,6 +10313,8 @@ Expression *CatAssignExp::semantic(Scope *sc)
     }
 
     e1 = e1->modifiableLvalue(sc, e1);
+    if (e1->op == TOKerror)
+        return e1;
 
     Type *tb1 = e1->type->toBasetype();
     Type *tb1next = tb1->nextOf();

diff --git a/test/compilable/compile1.d b/test/compilable/compile1.d
@@ -101,6 +101,14 @@ int bug6096()
     return 1;
 }
 
+/**************************************************
+    7681  Segfault
+**************************************************/
+
+static assert( !is(typeof( (){
+      undefined ~= delegate(){}; return 7;
+  }())));
+
 /**************************************************
     5796
 **************************************************/