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//
// GTMObjC2Runtime.h
//
// Copyright 2007-2008 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
//
#import <objc/objc-api.h>
#import "GTMDefines.h"
// These functions exist for code that we want to compile on both the < 10.5
// sdks and on the >= 10.5 sdks without warnings. It basically reimplements
// certain parts of the objc2 runtime in terms of the objc1 runtime. It is not
// a complete implementation as I've only implemented the routines I know we
// use. Feel free to add more as necessary.
// These functions are not documented because they conform to the documentation
// for the ObjC2 Runtime.
#if OBJC_API_VERSION >= 2 // Only have optional and req'd keywords in ObjC2.
#define AT_OPTIONAL @optional
#define AT_REQUIRED @required
#else
#define AT_OPTIONAL
#define AT_REQUIRED
#endif
// The file objc-runtime.h was moved to runtime.h and in Leopard, objc-runtime.h
// was just a wrapper around runtime.h. For the iPhone SDK, this objc-runtime.h
// is removed in the iPhoneOS2.0 SDK.
//
// The |Object| class was removed in the iPhone2.0 SDK too.
#if GTM_IPHONE_SDK
#import <objc/runtime.h>
#else
#import <objc/objc-runtime.h>
#import <objc/Object.h>
#endif
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
#import "objc/Protocol.h"
#ifdef __cplusplus
extern "C" {
#endif
OBJC_EXPORT Class object_getClass(id obj);
OBJC_EXPORT const char *class_getName(Class cls);
OBJC_EXPORT BOOL class_conformsToProtocol(Class cls, Protocol *protocol);
OBJC_EXPORT Class class_getSuperclass(Class cls);
OBJC_EXPORT Method *class_copyMethodList(Class cls, unsigned int *outCount);
OBJC_EXPORT SEL method_getName(Method m);
OBJC_EXPORT void method_exchangeImplementations(Method m1, Method m2);
OBJC_EXPORT IMP method_getImplementation(Method method);
OBJC_EXPORT IMP method_setImplementation(Method method, IMP imp);
OBJC_EXPORT struct objc_method_description protocol_getMethodDescription(Protocol *p,
SEL aSel,
BOOL isRequiredMethod,
BOOL isInstanceMethod);
#ifdef __cplusplus
}
#endif
#endif // OBJC2_UNAVAILABLE
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