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Comments (3)

gsdios avatar gsdios commented on July 19, 2024

无需了解实例本身如何设计，只要知道某个实例的selector即可hook。

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panxiaoqin avatar panxiaoqin commented on July 19, 2024

我这样写必定报错

    let imp: @convention(block) (TestClass, Int32,Int32) -> Int32 = { (vc, a,b) in
        vc.callOriginalMethod {
            vc.sub(a, value: b)
        }
        return 10
    }
    
    let hookID = TestClass.hookMethod(#selector(TestClass.sub(_:value:)), impBlock: imp)
    let aaa = TestClass()
    let c = aaa.sub(1, value: 2)
    print(c)

必须改成

    let hookID = aaa.hookMethod(#selector(TestClass.sub(_:value:)), impBlock: imp)

sub 不是静态方法

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gsdios avatar gsdios commented on July 19, 2024

TestClass.hookMethod() 表示是hook TestClass的类方法，在这里将TestClass看做一个类对象
aaa.hookMethod() 表示hook aaa这个实例拥有的实例方法
这正是实例维度hook的特点

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