objc: Don't crash on missing @interface decl.
// rdar://10415026
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144143 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index c6a5f1e..4ba294c 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -1968,12 +1968,13 @@
}
} else if (CurMethod->isInstanceMethod()) {
// We should warn if a local variable hides an ivar.
- ObjCInterfaceDecl *IFace = CurMethod->getClassInterface();
- ObjCInterfaceDecl *ClassDeclared;
- if (ObjCIvarDecl *IV = IFace->lookupInstanceVariable(II, ClassDeclared)) {
- if (IV->getAccessControl() != ObjCIvarDecl::Private ||
- IFace == ClassDeclared)
- Diag(Loc, diag::warn_ivar_use_hidden) << IV->getDeclName();
+ if (ObjCInterfaceDecl *IFace = CurMethod->getClassInterface()) {
+ ObjCInterfaceDecl *ClassDeclared;
+ if (ObjCIvarDecl *IV = IFace->lookupInstanceVariable(II, ClassDeclared)) {
+ if (IV->getAccessControl() != ObjCIvarDecl::Private ||
+ IFace == ClassDeclared)
+ Diag(Loc, diag::warn_ivar_use_hidden) << IV->getDeclName();
+ }
}
}