EXC_BAD_ACCESS 使用 Typhoon 在运行时注入闭包时
EXC_BAD_ACCESS when injecting a closure at runtime using Typhoon
我有一个混合的 ObjC 和 Swift iOS 项目。
我有一个 class 用于在运行时测试一个普通闭包的注入:
@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 Typhoon 汇编文件包含这个函数:
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
}
然后我尝试使用这个闭包如下:
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这会导致 EXC_BAD_ACCESS
。 (确切消息是 Thread 1: EXC_BAD_ACCESS (code=1, address=0x0)
)所以看起来闭包正在某处释放。
我已经尝试将捕获添加到程序集中(即 [closure]
),但没有任何区别:
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 注入,而不是通过 init,但没有任何区别。
根据记忆,这是不支持的。您可以尝试在测试用例中查找示例。
此处描述了注入包装原语:https://github.com/appsquickly/typhoon/wiki/wrap-primitive-values-into-NSValue
。 .但是没有提到 blocks/closures。
如果您描述了您想要实现的目标,可以建议次优的解决方法。
我有一个混合的 ObjC 和 Swift iOS 项目。
我有一个 class 用于在运行时测试一个普通闭包的注入:
@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 Typhoon 汇编文件包含这个函数:
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
}
然后我尝试使用这个闭包如下:
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这会导致 EXC_BAD_ACCESS
。 (确切消息是 Thread 1: EXC_BAD_ACCESS (code=1, address=0x0)
)所以看起来闭包正在某处释放。
我已经尝试将捕获添加到程序集中(即 [closure]
),但没有任何区别:
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 注入,而不是通过 init,但没有任何区别。
根据记忆,这是不支持的。您可以尝试在测试用例中查找示例。
此处描述了注入包装原语:https://github.com/appsquickly/typhoon/wiki/wrap-primitive-values-into-NSValue
。 .但是没有提到 blocks/closures。
如果您描述了您想要实现的目标,可以建议次优的解决方法。