llvm-project/clang/test/Parser/objc-forcollection-neg.m

// RUN: %clang_cc1 -fsyntax-only -verify -Wno-objc-root-class %s

struct __objcFastEnumerationState; 
typedef struct objc_class *Class;
typedef struct objc_object {
 Class isa;
} *id;
    
            
@interface MyList
@end
    
@implementation MyList
- (unsigned int)countByEnumeratingWithState:  (struct __objcFastEnumerationState *)state objects:  (id *)items count:(unsigned int)stackcount
{
        return 0;
}
@end

@interface MyList (BasicTest)
- (void)compilerTestAgainst;
@end

@implementation MyList (BasicTest)
- (void)compilerTestAgainst {

        int i=0;
        for (int * elem in elem) // expected-error {{selector element type 'int *' is not a valid object}} \
				    expected-error {{the type 'int *' is not a pointer to a fast-enumerable object}}
           ++i;
        for (i in elem)  // expected-error {{use of undeclared identifier 'elem'}} \
			    expected-error {{selector element type 'int' is not a valid object}}
           ++i;
        for (id se in i) // expected-error {{the type 'int' is not a pointer to a fast-enumerable object}} 
           ++i;
}
@end