F＃對象在成員之前引用自我綁定

Question

對象在成員定義之前可能引用自身嗎？類似這樣的：

type public ClassA() = class 
    let b = new ClassB(this) 
    member public x.getClassB() = b 
    end 

其中'this'是創建ClassB的ClassA實例的引用？

Answer 1

類可以使用as提到自己在它們的構造：

type public ClassA() as this = 
    let b = new ClassB(this) 
    member public x.getClassB() = b 
and public ClassB (a: ClassA) = 
    member public x.getClassA() = a