diff options
Diffstat (limited to 'lib/Sema/SemaObjCProperty.cpp')
| -rw-r--r-- | lib/Sema/SemaObjCProperty.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Sema/SemaObjCProperty.cpp b/lib/Sema/SemaObjCProperty.cpp index 42a5c9d0e8..9d849ff74f 100644 --- a/lib/Sema/SemaObjCProperty.cpp +++ b/lib/Sema/SemaObjCProperty.cpp @@ -281,7 +281,10 @@ Sema::HandlePropertyInClassExtension(Scope *S, QualType ConvertedType; // Relax the strict type matching for property type in continuation class. // Allow property object type of continuation class to be different as long - // as it narrows the object type in its primary class property. + // as it narrows the object type in its primary class property. Note that + // this conversion is safe only because the wider type is for a 'readonly' + // property in primary class and 'narrowed' type for a 'readwrite' property + // in continuation class. if (!isa<ObjCObjectPointerType>(PIDecl->getType()) || !isa<ObjCObjectPointerType>(PDecl->getType()) || (!isObjCPointerConversion(PDecl->getType(), PIDecl->getType(), |