在 class 中定义的闭包中达到 "self"

Question

所以我有以下结构并且很好奇这是否可行。

class Chip8
{

    let foo = 10;

    let mapping = [

        // CLS (clear the display)
        0x00E0: { (argument: Int) -> Void in
             // How can I reach self.foo here (self.foo obviously does not work, which is the premise of the question)
         },

    ]
}

这样的事情可能吗？

编辑：

似乎如果我将映射的初始化移动到构造函数，我就可以访问 "self"

Answer 1

我已将映射的初始化移至 init 构造函数，现在我可以从映射中的闭包访问 "self"。

Answer 2

你也可以试试

class Chip8
{

    let foo = 10;

    lazy var mapping:[Int: (Int)->Void] = {
        return [

            // CLS (clear the display)
            0x00E0: { (argument: Int) -> Void in
                // How can I reach self.foo here (self.foo obviously does not work, which is the premise of the question)
                self.foo
            },

        ]
    }()
}

在 class 中定义的闭包中达到 "self"

Reaching "self" in closure defined in class

macos

cocoa

closures

ios

swift