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/*
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Copyright 2013-2017 appPlant GmbH
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Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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*/
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/**
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* Code extracted from
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* - http://defagos.github.io/yet_another_article_about_method_swizzling/
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* - https://gist.github.com/defagos/1312fec96b48540efa5c
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*/
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#import <objc/runtime.h>
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#import <objc/message.h>
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#define SwizzleSelector(clazz, selector, newImpl, oldImpl) \
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(*oldImpl) = (__typeof((*oldImpl)))class_swizzleSelector((clazz), (selector), (IMP)(newImpl))
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#define SwizzleClassSelector(clazz, selector, newImpl, oldImpl) \
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(*oldImpl) = (__typeof((*oldImpl)))class_swizzleClassSelector((clazz), (selector), (IMP)(newImpl))
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#define SwizzleSelectorWithBlock_Begin(clazz, selector) { \
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SEL _cmd = selector; \
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__block IMP _imp = class_swizzleSelectorWithBlock((clazz), (selector),
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#define SwizzleSelectorWithBlock_End );}
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#define SwizzleClassSelectorWithBlock_Begin(clazz, selector) { \
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SEL _cmd = selector; \
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__block IMP _imp = class_swizzleClassSelectorWithBlock((clazz), (selector),
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#define SwizzleClassSelectorWithBlock_End );}
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/**
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* Swizzle class method specified by class and selector
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* through the provided method implementation.
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*
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* @param [ Class ] clazz The class containing the method.
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* @param [ SEL ] selector The selector of the method.
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* @param [ IMP ] newImpl The new implementation of the method.
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*
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* @return [ IMP ] The previous implementation of the method.
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*/
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IMP class_swizzleClassSelector(Class clazz, SEL selector, IMP newImpl);
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/**
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* Swizzle class method specified by class and selector
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* through the provided code block.
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*
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* @param [ Class ] clazz The class containing the method.
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* @param [ SEL ] selector The selector of the method.
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* @param [ id ] newImplBlock The new implementation of the method.
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*
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* @return [ IMP ] The previous implementation of the method.
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*/
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IMP class_swizzleClassSelectorWithBlock(Class clazz, SEL selector, id newImplBlock);
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/**
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* Swizzle method specified by class and selector
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* through the provided code block.
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*
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* @param [ Class ] clazz The class containing the method.
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* @param [ SEL ] selector The selector of the method.
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* @param [ id ] newImplBlock The new implementation of the method.
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*
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* @return [ IMP ] The previous implementation of the method.
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*/
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IMP class_swizzleSelectorWithBlock(Class clazz, SEL selector, id newImplBlock);
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/**
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* Swizzle method specified by class and selector
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* through the provided method implementation.
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*
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* @param [ Class ] clazz The class containing the method.
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* @param [ SEL ] selector The selector of the method.
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* @param [ IMP ] newImpl The new implementation of the method.
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*
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* @return [ IMP ] The previous implementation of the method.
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*/
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IMP class_swizzleSelector(Class clazz, SEL selector, IMP newImpl);
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