Files
kotlin-fork/compiler/testData/codegen/box/properties/lateinit/accessorException.kt
T
Alexander Udalov 43413fcc44 Move lateinit assertion for companion property to companion object
Previously, for a property named `x` in the companion object of a class
named `Foo`, we generated:
- `Foo.access$getX$cp`, consisting of `GETFIELD Foo.x` and lateinit
  assertion
- `Foo.Companion.getX`, consisting of `INVOKEVIRTUAL Foo.access$getX$cp`

Now, we generate:
- `Foo.access$getX$cp`, consisting of `GETFIELD Foo.x`
- `Foo.Companion.getX`, consisting of `INVOKEVIRTUAL Foo.access$getX$cp`
  and lateinit assertion

The reason is that this way we can avoid generating another accessor and
reuse `Foo.access$getX$cp` in case `isInitialized` is called on a
lateinit property from companion.

For private properties, getX is not generated, but instead the assertion
is generated on each access to the field (which can be improved, see
KT-28331). The same happens for access to non-private properties from
inside the same context where they're declared.

 #KT-21862 In Progress
2018-12-13 14:12:33 +01:00

33 lines
708 B
Kotlin
Vendored

public class A {
fun getFromClass(): Boolean {
try {
val a = str
return false
} catch (e: RuntimeException) {
return true
}
}
fun getFromCompanion() = Companion.getFromCompanion()
private companion object {
private lateinit var str: String
fun getFromCompanion(): Boolean {
try {
val a = str
return false
} catch (e: RuntimeException) {
return true
}
}
}
}
fun box(): String {
if (!A().getFromClass()) return "Fail getFromClass"
if (!A().getFromCompanion()) return "Fail getFromCompanion"
return "OK"
}