Untitled
| Run Settings | |
|---|---|
| Language | Kotlin |
| Language Version | |
| Run Command |
| Snippet Metadata | |
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| Owner | w3xue |
| Created | |
| Modified | |
| Visibility | Public |
open class D {
}
class D1 : D() {
}
open class C {
open fun D.foo() {
println("D.foo in C")
}
open fun D1.foo() {
println("D1.foo in C")
}
fun caller(d: D) {
d.foo() // 调用扩展函数
}
}
class C1 : C() {
override fun D.foo() {
println("D.foo in C1")
}
override fun D1.foo() {
println("D1.foo in C1")
}
}
fun main(args: Array<String>) {
C().caller(D()) // 输出 "D.foo in C"
C1().caller(D()) // 输出 "D.foo in C1" —— 分发接收者虚拟解析
C().caller(D1()) // 输出 "D.foo in C" —— 扩展接收者静态解析
}
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