Typed arrays API (#1398)

backend.native/tests/build.gradle

@@ -1257,6 +1257,20 @@ task array3(type: RunKonanTest) {
     source = "runtime/collections/array3.kt"
 }
 
+task typed_array0(type: RunKonanTest) {
+    // MIPS target is big-endian.
+    disabled = (project.testTarget == 'linux_mips32')
+    goldValue = "OK\n"
+    source = "runtime/collections/typed_array0.kt"
+}
+
+task typed_array1(type: RunKonanTest) {
+    disabled = (project.testTarget == 'wasm32')  // No exceptions on WASM.
+    goldValue = "OK\n"
+    source = "runtime/collections/typed_array1.kt"
+}
+
+
 task sort0(type: RunKonanTest) {
     goldValue = "[a, b, x]\n[-1, 0, 42, 239, 100500]\n"
     source = "runtime/collections/sort0.kt"

backend.native/tests/runtime/collections/typed_array0.kt

@@ -0,0 +1,14 @@
+package runtime.collections.typed_array0
+
+import kotlin.test.*
+
+@Test fun runTest() {
+    // Those tests assume little endian bit ordering.
+    val array = ByteArray(42)
+    array.setLongAt(5, 0x1234_5678_9abc_def0)
+
+    expect(0xdef0.toInt()) { array.charAt(5).toInt() }
+    expect(0x9abc.toShort()) { array.shortAt(7) }
+    expect(0x1234_5678) { array.intAt(9) }
+    println("OK")
+}

backend.native/tests/runtime/collections/typed_array1.kt

@@ -0,0 +1,74 @@
+package runtime.collections.typed_array1
+
+import kotlin.test.*
+
+@Test fun runTest() {
+    val array = ByteArray(17)
+    val results = mutableSetOf<Any>()
+    var counter = 0
+    try {
+        results += array.shortAt(16)
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        results += array.charAt(22)
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        results += array.intAt(15)
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        results += array.longAt(14)
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        results += array.floatAt(14)
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        results += array.doubleAt(13)
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+
+    try {
+        array.setShortAt(16, 2.toShort())
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        array.setCharAt(22, 'a')
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        array.setIntAt(15, 1234)
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        array.setLongAt(14, 1.toLong())
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        array.setFloatAt(14, 1.0f)
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+    try {
+        array.setDoubleAt(13, 3.0)
+    } catch (e: ArrayIndexOutOfBoundsException) {
+        counter++
+    }
+
+    expect(12) { counter }
+    expect(0) { results.size }
+    println("OK")
+}