threema-ios/Threema Tests/NSObject+Swizzling.m

//  _____ _
// |_   _| |_  _ _ ___ ___ _ __  __ _
//   | | | ' \| '_/ -_) -_) '  \/ _` |_
//   |_| |_||_|_| \___\___|_|_|_\__,_(_)
//
// Threema iOS Client
// Copyright (c) 2014-2020 Threema GmbH
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License, version 3,
// as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <https://www.gnu.org/licenses/>.

#import "NSObject+Swizzling.h"
#import <objc/runtime.h>

@implementation NSObject (Swizzling)

+ (void)ttt_swizzleClassMethod:(SEL)original withReplacement:(SEL)swizzled
{
    method_exchangeImplementations(class_getClassMethod(self, original), class_getClassMethod(self, swizzled));
}

+ (void)ttt_swizzleInstanceMethod:(SEL)original withReplacement:(SEL)swizzled
{
    method_exchangeImplementations(class_getInstanceMethod(self, original), class_getInstanceMethod(self, swizzled));
}

@end