42 lines
		
	
	
		
			778 B
		
	
	
	
		
			Objective-C
		
	
	
	
			
		
		
	
	
			42 lines
		
	
	
		
			778 B
		
	
	
	
		
			Objective-C
		
	
	
	
| // RUN: %clang_cc1 -fsyntax-only -verify %s
 | |
| // expected-no-diagnostics
 | |
| 
 | |
| #include <stddef.h>
 | |
| 
 | |
| typedef struct objc_class *Class;
 | |
| typedef struct objc_object {
 | |
|     Class isa;
 | |
| } *id;
 | |
| id objc_getClass(const char *s);
 | |
| 
 | |
| @interface Object
 | |
| + self;
 | |
| @end
 | |
| 
 | |
| @protocol Func
 | |
| + (void) class_func0;
 | |
| - (void) instance_func0;
 | |
| @end
 | |
| 
 | |
| @interface Derived: Object <Func>
 | |
| @end
 | |
| 
 | |
| @interface Derived2: Object <Func>
 | |
| @end
 | |
| 
 | |
| static void doSomething(Class <Func> unsupportedObjectType) {
 | |
|   [unsupportedObjectType class_func0];
 | |
| }
 | |
| 
 | |
| static void doSomethingElse(id <Func> pleaseConvertToThisType) {
 | |
|   [pleaseConvertToThisType class_func0];
 | |
| }
 | |
| 
 | |
| int main(int argv, char *argc[]) {
 | |
|   doSomething([Derived self]);
 | |
|   doSomething([Derived2 self]);
 | |
|   doSomethingElse([Derived self]);
 | |
|   doSomethingElse([Derived2 self]);
 | |
| }
 | |
| 
 |