//---------------------------------------------------------------------------------------
//  $Id$
//  Copyright (c) 2007-2010 by Mulle Kybernetik. See License file for details.
//---------------------------------------------------------------------------------------

#import <Foundation/Foundation.h>


@interface OCMConstraint : NSObject 

+ (id)constraint;
- (BOOL)evaluate:(id)value;

// if you are looking for any, isNil, etc, they have moved to OCMArg

// try to use [OCMArg checkWith...] instead of the constraintWith... methods below

+ (id)constraintWithSelector:(SEL)aSelector onObject:(id)anObject;
+ (id)constraintWithSelector:(SEL)aSelector onObject:(id)anObject withValue:(id)aValue;


@end

@interface OCMAnyConstraint : OCMConstraint
@end

@interface OCMIsNilConstraint : OCMConstraint
@end

@interface OCMIsNotNilConstraint : OCMConstraint
@end

@interface OCMIsNotEqualConstraint : OCMConstraint
{
	@public
	id testValue;
}

@end

@interface OCMInvocationConstraint : OCMConstraint
{
	@public
	NSInvocation *invocation;
}

@end

#if NS_BLOCKS_AVAILABLE

@interface OCMBlockConstraint : OCMConstraint
{
	BOOL (^block)(id);
}

- (id)initWithConstraintBlock:(BOOL (^)(id))block;

@end

#endif


#define CONSTRAINT(aSelector) [OCMConstraint constraintWithSelector:aSelector onObject:self]
#define CONSTRAINTV(aSelector, aValue) [OCMConstraint constraintWithSelector:aSelector onObject:self withValue:(aValue)]