The crash occurs in WeakObjectProfileTy::getBaseInfo when getBase() is
called on an ObjCPropertyRefExpr object whose receiver is an interface.
This commit fixes the crash by checking the type of the receiver and
setting IsExact to true if it is an interface.
rdar://problem/
25208167
Differential Revision: http://reviews.llvm.org/D18268
llvm-svn: 263818
if (BaseProp) {
D = getBestPropertyDecl(BaseProp);
- const Expr *DoubleBase = BaseProp->getBase();
- if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(DoubleBase))
- DoubleBase = OVE->getSourceExpr();
-
- IsExact = DoubleBase->isObjCSelfExpr();
+ if (BaseProp->isClassReceiver())
+ IsExact = true;
+ else {
+ const Expr *DoubleBase = BaseProp->getBase();
+ if (const OpaqueValueExpr *OVE = dyn_cast<OpaqueValueExpr>(DoubleBase))
+ DoubleBase = OVE->getSourceExpr();
+
+ IsExact = DoubleBase->isObjCSelfExpr();
+ }
}
break;
}
}
@end
+// This used to crash in WeakObjectProfileTy::getBaseInfo when getBase() was
+// called on an ObjCPropertyRefExpr object whose receiver was an interface.
+
+@class NSString;
+@interface NSBundle
++(NSBundle *)foo;
+@property NSString *prop;
+@end
+
+void foo() {
+ NSString * t = NSBundle.foo.prop;
+}