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author | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
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committer | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
commit | 222e2a7620e6520ffaf4fc4e69d79c18da31542e (patch) | |
tree | 7bfbc05bfa3b41c8f9d2e56d53a0bc3e310df239 /clang/test/SemaObjC/id-isa-ref.m | |
parent | 3d206f03985b50beacae843d880bccdc91a9f424 (diff) |
Add the clang library to the repo (with some of my changes, too).
Diffstat (limited to 'clang/test/SemaObjC/id-isa-ref.m')
-rw-r--r-- | clang/test/SemaObjC/id-isa-ref.m | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/clang/test/SemaObjC/id-isa-ref.m b/clang/test/SemaObjC/id-isa-ref.m new file mode 100644 index 0000000..c2debb0 --- /dev/null +++ b/clang/test/SemaObjC/id-isa-ref.m @@ -0,0 +1,35 @@ +// RUN: %clang_cc1 -fsyntax-only -verify %s + +typedef struct objc_object { + struct objc_class *isa; +} *id; + +@interface NSObject { + struct objc_class *isa; +} +@end +@interface Whatever : NSObject ++self; +@end + +static void func() { + + id x; + + // rdar://8290002 + [(*x).isa self]; // expected-warning {{direct access to objective-c's isa is deprecated in favor of object_setClass() and object_getClass()}} + [x->isa self]; // expected-warning {{direct access to objective-c's isa is deprecated in favor of object_setClass() and object_getClass()}} + + Whatever *y; + + // GCC allows this, with the following warning: + // instance variable 'isa' is @protected; this will be a hard error in the future + // + // FIXME: see if we can avoid the 2 warnings that follow the error. + [(*y).isa self]; // expected-error {{instance variable 'isa' is protected}} \ + expected-warning{{receiver type 'struct objc_class *' is not 'id' or interface pointer, consider casting it to 'id'}} \ + expected-warning{{method '-self' not found (return type defaults to 'id')}} + [y->isa self]; // expected-error {{instance variable 'isa' is protected}} \ + expected-warning{{receiver type 'struct objc_class *' is not 'id' or interface pointer, consider casting it to 'id'}} \ + expected-warning{{method '-self' not found (return type defaults to 'id')}} +} |