| Issue |
71830
|
| Summary |
clang ignores -Wat-protocol when building Objc++ code
|
| Labels |
clang
|
| Assignees |
|
| Reporter |
rmaz
|
When compiling the sample code:
```
@protocol Blah;
__attribute__((objc_root_class))
@interface SomeClass
@end
@implementation SomeClass
- (void)checkProto:(Protocol *)p {}
- (void)someFunc {
[self checkProto:@protocol(Blah)];
}
@end
```
for objc we get as expected:
```
% clang -Wat-protocol -x objective-c -c ex.m -o ex.o
ex.m:15:19: warning: @protocol is using a forward protocol declaration of 'Blah' [-Wat-protocol]
[self checkProto:@protocol(Blah)];
^
ex.m:1:11: note: 'Blah' declared here
@protocol Blah;
^
1 warning generated.
```
however when targeting objc++ we get no diagnostic:
```
% clang -Wat-protocol -x objective-c++ -c ex.m -o ex.o
```
I would expect the diagnostic to be emitted in both cases.
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