Files

109 lines
2.7 KiB
Kotlin
Vendored

annotation class ValueContainer
abstract class AbstractStringProperty(protected var v: String) {
fun get(): String {
return v
}
}
@ValueContainer
class StringProperty(v: String) : AbstractStringProperty(v) {
fun assign(v: String) {
this.v = v
}
fun assign(v: StringProperty) {
this.v = v.get()
}
}
@ValueContainer
class StringPropertyWithPlus(v: String) : AbstractStringProperty(v) {
fun assign(v: String) {
this.v = v
}
fun assign(o: StringPropertyWithPlus) {
this.v = o.get()
}
operator fun plus(v: String) =
StringPropertyWithPlus(this.v + v)
}
@ValueContainer
class StringPropertyWithPlusAssign(v: String) : AbstractStringProperty(v) {
fun assign(v: String) {
this.v = v
}
fun assign(o: StringPropertyWithPlusAssign) {
this.v = o.get()
}
operator fun plusAssign(v: String) {
this.v += v
}
}
@ValueContainer
class StringPropertyWithPlusAndPlusAssign(v: String) : AbstractStringProperty(v) {
fun assign(v: String) {
this.v = v
}
fun assign(o: StringPropertyWithPlusAndPlusAssign) {
this.v = o.get()
}
operator fun plus(v: String) =
StringPropertyWithPlusAndPlusAssign(this.v + v)
operator fun plusAssign(v: String) {
this.v += v
}
}
data class Task(
val valInput: StringProperty,
var varInput: StringProperty,
val valInputWithPlus: StringPropertyWithPlus,
var varInputWithPlus: StringPropertyWithPlus,
val valInputWithPlusAssign: StringPropertyWithPlusAssign,
var varInputWithPlusAssign: StringPropertyWithPlusAssign,
val valInputWithPlusAndPlusAssign: StringPropertyWithPlusAndPlusAssign,
var varInputWithPlusAndPlusAssign: StringPropertyWithPlusAndPlusAssign,
)
fun box(): String {
val task = Task(
StringProperty("O"),
StringProperty("O"),
StringPropertyWithPlus("O"),
StringPropertyWithPlus("O"),
StringPropertyWithPlusAssign("O"),
StringPropertyWithPlusAssign("O"),
StringPropertyWithPlusAndPlusAssign("O"),
StringPropertyWithPlusAndPlusAssign("O")
)
task.varInputWithPlus += "K"
if (task.varInputWithPlus.get() != "OK") return task.varInputWithPlus.get()
task.valInputWithPlusAssign += "K"
if (task.valInputWithPlusAssign.get() != "OK") return task.valInputWithPlusAssign.get()
task.varInputWithPlusAssign += "K"
if (task.varInputWithPlusAssign.get() != "OK") return task.varInputWithPlusAssign.get()
task.valInputWithPlusAndPlusAssign += "K"
if (task.valInputWithPlusAndPlusAssign.get() != "OK") return task.valInputWithPlusAndPlusAssign.get()
return "OK"
}