This revision was automatically updated to reflect the committed changes. Closed by commit rL255754: [Objective-c] Fix a crash that occurs when ObjCTypeParamList::back() is (authored by ahatanak).
Changed prior to commit: http://reviews.llvm.org/D15463?vs=42560&id=42962#toc Repository: rL LLVM http://reviews.llvm.org/D15463 Files: cfe/trunk/lib/Parse/ParseObjc.cpp cfe/trunk/test/SemaObjC/kindof.m Index: cfe/trunk/test/SemaObjC/kindof.m =================================================================== --- cfe/trunk/test/SemaObjC/kindof.m +++ cfe/trunk/test/SemaObjC/kindof.m @@ -302,3 +302,19 @@ void processCopyable(__typeof(getSomeCopyable()) string); processCopyable(0); // expected-warning{{null passed to a callee that requires a non-null argument}} } + +// Check that clang doesn't crash when a type parameter is illegal. +@interface Array1<T> : NSObject +@end + +@interface I1 : NSObject +@end + +@interface Array1<__kindof I1*>(extensions1) // expected-error{{expected type parameter name}} +@end + +@interface Array2<T1, T2, T3> : NSObject +@end + +@interface Array2<T, T, __kindof I1*>(extensions2) // expected-error{{expected type parameter name}} expected-error{{redeclaration of type parameter 'T'}} +@end Index: cfe/trunk/lib/Parse/ParseObjc.cpp =================================================================== --- cfe/trunk/lib/Parse/ParseObjc.cpp +++ cfe/trunk/lib/Parse/ParseObjc.cpp @@ -603,7 +603,7 @@ // whether there are any protocol references. lAngleLoc = SourceLocation(); rAngleLoc = SourceLocation(); - return list; + return invalid ? nullptr : list; } /// Parse an objc-type-parameter-list.
Index: cfe/trunk/test/SemaObjC/kindof.m =================================================================== --- cfe/trunk/test/SemaObjC/kindof.m +++ cfe/trunk/test/SemaObjC/kindof.m @@ -302,3 +302,19 @@ void processCopyable(__typeof(getSomeCopyable()) string); processCopyable(0); // expected-warning{{null passed to a callee that requires a non-null argument}} } + +// Check that clang doesn't crash when a type parameter is illegal. +@interface Array1<T> : NSObject +@end + +@interface I1 : NSObject +@end + +@interface Array1<__kindof I1*>(extensions1) // expected-error{{expected type parameter name}} +@end + +@interface Array2<T1, T2, T3> : NSObject +@end + +@interface Array2<T, T, __kindof I1*>(extensions2) // expected-error{{expected type parameter name}} expected-error{{redeclaration of type parameter 'T'}} +@end Index: cfe/trunk/lib/Parse/ParseObjc.cpp =================================================================== --- cfe/trunk/lib/Parse/ParseObjc.cpp +++ cfe/trunk/lib/Parse/ParseObjc.cpp @@ -603,7 +603,7 @@ // whether there are any protocol references. lAngleLoc = SourceLocation(); rAngleLoc = SourceLocation(); - return list; + return invalid ? nullptr : list; } /// Parse an objc-type-parameter-list.
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