Add basic support for properties references (a missing feature).
While it is far from complete, it does fix the following <rdar://problem/5967199> clang on xcode: error: member reference is not to a structure or union
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@51719 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index 04561f5..7f80203 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -605,6 +605,36 @@
if (ObjCIvarDecl *IV = IFace->lookupInstanceVariable(&Member, clsDeclared))
return new ObjCIvarRefExpr(IV, IV->getType(), MemberLoc, BaseExpr,
OpKind==tok::arrow);
+ } else if (isObjCObjectPointerType(BaseType)) {
+ PointerType *pointerType = static_cast<PointerType*>(BaseType.getTypePtr());
+ BaseType = pointerType->getPointeeType();
+ ObjCInterfaceDecl *IFace;
+ if (isa<ObjCInterfaceType>(BaseType.getCanonicalType()))
+ IFace = dyn_cast<ObjCInterfaceType>(BaseType)->getDecl();
+ else
+ IFace = dyn_cast<ObjCQualifiedInterfaceType>(BaseType)->getDecl();
+ ObjCInterfaceDecl *clsDeclared;
+ if (ObjCIvarDecl *IV = IFace->lookupInstanceVariable(&Member, clsDeclared))
+ return new ObjCIvarRefExpr(IV, IV->getType(), MemberLoc, BaseExpr,
+ OpKind==tok::arrow);
+ // Check for properties.
+ if (OpKind==tok::period) {
+ // Before we look for explicit property declarations, we check for
+ // nullary methods (which allow '.' notation).
+ Selector Sel = PP.getSelectorTable().getNullarySelector(&Member);
+ ObjCMethodDecl *MD = IFace->lookupInstanceMethod(Sel);
+ if (MD)
+ return new ObjCPropertyRefExpr(MD, MD->getResultType(),
+ MemberLoc, BaseExpr);
+ // FIXME: Need to deal with setter methods that take 1 argument. E.g.:
+ // @interface NSBundle : NSObject {}
+ // - (NSString *)bundlePath;
+ // - (void)setBundlePath:(NSString *)x;
+ // @end
+ // void someMethod() { frameworkBundle.bundlePath = 0; }
+ //
+ // FIXME: lookup explicit properties...
+ }
}
return Diag(OpLoc, diag::err_typecheck_member_reference_structUnion,
SourceRange(MemberLoc));