#import <UIKit/UIKit.h>

struct MyStruct4C {
    char a, b, c, d;
};

typedef id (^MyBlock)(void);

@protocol TestProtocol <NSObject>
- (BOOL)testProtocolFlag;
- (void)setTestProtocolFlag:(BOOL)testFlag;
@end

@protocol TestConformsToProtocol <NSObject>
@required
- (int)requiredMethod1;
- (int)requiredMethod2;
@optional
- (int)optionalMethod3;
@end

@interface TestMethod : NSObject <TestProtocol>
{
    BOOL _testProtocolFlag;
}

- (CGSize)methodReturningCGSize;
- (CGRect)methodReturningCGRect;
+ (BOOL)testMethodReturningCGSize:(TestMethod *)testMethod;
+ (BOOL)testMethodReturningCGRect:(TestMethod *)testMethod;

+ (BOOL)testMethodAcceptingUIInterfaceOrientation:(UIInterfaceOrientation)orientation;
+ (BOOL)testMethodAcceptingUIEdgeInsets:(UIEdgeInsets)insets;
+ (id)testMethodCallingBlock:(MyBlock)block;
+ (BOOL)testMethodAcceptingCFType:(CFStringRef)cfstring;
+ (BOOL)testMethodAcceptingMyStruct4C:(struct MyStruct4C)s;
+ (BOOL)testMethodAcceptingMyStruct4C:(struct MyStruct4C)s another:(struct MyStruct4C)s2;
+ (BOOL)testMethodAcceptingMyStruct4CValue:(NSValue *)val;

+ (BOOL)testValueForKey:(Class)klass expected:(id)expected;

+ (int)testPointerToStrings:(char **)strs length:(int)len;

- (int)methodReturningLargeInt;
- (id)methodSendingNew:(Class)klass;

+ (BOOL)testConformsToProtocol:(id <TestConformsToProtocol>)obj;

@end

@interface TestIterator : NSObject <NSFastEnumeration>
@end

static inline int TestInlineFunction(int x, int y, int z) {
  return x + y + z;
}

extern int lowerCaseConstant;
@interface lowerCaseClass : NSObject
@end