Svyatoslav Scherbina
80 lines
1.9 KiB
Kotlin
80 lines
1.9 KiB
Kotlin
import kotlinx.cinterop.*
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import objcSmoke.*
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fun main(args: Array<String>) {
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autoreleasepool {
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run()
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}
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}
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fun run() {
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println(
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getSupplier(
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invoke1(42) { it * 2 }
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)!!()
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)
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val foo = Foo()
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val classGetter = getClassGetter(foo)
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invoke2 { println(classGetter()) }
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foo.hello()
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foo.name = "everybody"
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foo.helloWithPrinter(object : NSObject(), PrinterProtocol {
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override fun print(string: CPointer<ByteVar>?) {
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println("Kotlin says: " + string?.toKString())
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}
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})
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Bar().hello()
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val pair = MutablePairImpl(42, 17)
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replacePairElements(pair, 1, 2)
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pair.swap()
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println("${pair.first}, ${pair.second}")
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// equals and hashCode (virtually):
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val map = mapOf(foo to pair, pair to foo)
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// equals (directly):
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if (!foo.equals(pair)) {
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// toString (directly):
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println(map[pair].toString() + map[foo].toString() == foo.description() + pair.description())
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}
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// hashCode (directly):
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if (foo.hashCode() == foo.hash().toInt()) {
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// toString (virtually):
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println(map.keys.map { it.toString() }.min() == foo.description())
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}
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}
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fun MutablePairProtocol.swap() {
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update(0, add = second)
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update(1, sub = first)
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update(0, add = second)
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update(1, sub = second*2)
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}
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class Bar : Foo() {
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override fun helloWithPrinter(printer: PrinterProtocol?) = memScoped {
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printer!!.print("Hello from Kotlin".cstr.getPointer(memScope))
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}
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}
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@Suppress("CONFLICTING_OVERLOADS")
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class MutablePairImpl(first: Int, second: Int) : NSObject(), MutablePairProtocol {
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private var elements = intArrayOf(first, second)
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override fun first() = elements.first()
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override fun second() = elements.last()
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override fun update(index: Int, add: Int) {
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elements[index] += add
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}
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override fun update(index: Int, sub: Int) {
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elements[index] -= sub
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}
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} |