Mikhail Glukhikh
36 lines
640 B
Kotlin
Vendored
36 lines
640 B
Kotlin
Vendored
interface A {
|
|
fun foo()
|
|
}
|
|
|
|
interface B : A {
|
|
fun bar()
|
|
}
|
|
|
|
interface C
|
|
|
|
interface D : A
|
|
|
|
fun test(a: A?) {
|
|
if (a != null && a is B?) {
|
|
<info descr="Smart cast to B">a</info>.bar()
|
|
}
|
|
|
|
if (a is B && a is C) {
|
|
<info descr="Smart cast to A">a</info>.foo()
|
|
}
|
|
|
|
if (a is B? && a is C?) {
|
|
<info descr="Smart cast to B?">a</info><info>?.</info>bar()
|
|
}
|
|
|
|
a<info>?.</info>foo()
|
|
if (a is B? && a is C?) {
|
|
a<info>?.</info>foo()
|
|
}
|
|
|
|
if (a is B && a is D) {
|
|
//when it's resolved, the message should be 'Smart cast to A'
|
|
<info>a</info>.<error>foo</error>
|
|
}
|
|
}
|