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Objective-Cで動的にクラスメソッドを呼び出す

Objective-C
iOS

Posted at 2014-02-16

objc_msgSendの第一引数にオブジェクトでなくClassを渡すとクラスメソッドも動的に呼び出すことができる。

- (void)testCallClassMethod
{
    XCTAssert(objc_msgSend([self class], @selector(instancesRespondToSelector:), _cmd), );
    XCTAssertFalse(objc_msgSend([self class], @selector(instancesRespondToSelector:), @selector(objectAtIndex:)), );
}

キモイ。

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