Assemblyscript 类继承 - 类型转换
有没有一种方法可以从基类转换为派生类？
class A{}
class B extends A{}
const b = new B()
const a:A = b //casts to base class ok
const b2:B = a //Error: Type 'A' is not assignable to type 'B'
Is there a way to cast from a base class into a derived one?
class A{}
class B extends A{}
const b = new B()
const a:A = b //casts to base class ok
const b2:B = a //Error: Type 'A' is not assignable to type 'B'
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看起来在 Assemblyscript 中这称为向上转换。
目前实现它的唯一方法是使用
a as B语法。目前不支持其他语法
Looks like in Assemblyscript this is called upcasting.
Currently the only way to achieve it is by using
a as Bsyntax.Other syntax is currently not supported