Question

我有一个混合的ObjC和Swift iOS项目。

我有一个用于在运行时测试平凡闭包注入的类：

@objc
class TyphoonClosureTester: NSObject {
    @objc var closure: (() -> Void)?

    @objc
    override init() {}

    @objc
    init(closure: (() -> Void)?) {
        self.closure = closure
    }

    @objc
    func callClosure() {
        guard let closure = closure else {
            assert(false, "no closure 1")
            return
        }
        closure()
        NSLog("Have called closure 1 OK")
    }
}

我的台风程序汇编文件包含以下功能：

func testAClosure(closure: @escaping () -> Void) -> AnyObject {
    return TyphoonDefinition.withClass(TyphoonClosureTester.self) { definition in
        definition?.useInitializer(#selector(TyphoonClosureTester.init(closure:))) { initializer in
            initializer?.injectParameter(with: closure)
        }

        definition?.scope = .prototype
    } as AnyObject
}

我尝试如下使用此闭包：

let closureTester1: TyphoonClosureTester = assembler.testAClosure(closure: {
    NSLog(" closure 1 called!")
}) as! TyphoonClosureTester

// causes EXC_BAD_ACCESS
closureTester1.callClosure()

但是当我调用闭包时会导致EXC_BAD_ACCESS。（确切的消息是Thread 1: EXC_BAD_ACCESS (code=1, address=0x0)。因此，似乎该闭包正在释放到某个位置。

我尝试将捕获添加到程序集（即[closure]）中，但这没有什么区别：

func testAClosure(closure: @escaping () -> Void) -> AnyObject {
    return TyphoonDefinition.withClass(TyphoonClosureTester.self) { [closure] definition in
        definition?.useInitializer(#selector(TyphoonClosureTester.init(closure:))) { [closure] initializer in
            initializer?.injectParameter(with: closure)
        }

        definition?.scope = .prototype
    } as AnyObject
}

我还尝试将闭包作为属性而不是通过init注入，这没有什么区别。

Answer 1

不支持此功能。您可以尝试在测试用例中查找示例。

此处介绍了注入包装的基元：https://github.com/appsquickly/typhoon/wiki/wrap-primitive-values-into-NSValue

。。但是没有引用块/闭包。

如果描述您想要实现的目标，则可能会建议一个下一个最佳解决方法。

使用Typhoon在运行时注入关闭项时，EXC_BAD_ACCESS

1 个答案: