contentEquals, contentHashCode, contentToString: Add js implementation and tests

#KT-13582

js/js.libraries/src/core/generated/_ArraysJs.kt

@@ -552,6 +552,264 @@ public inline operator fun CharArray.plus(elements: CharArray): CharArray {
     return this.asDynamic().concat(elements)
 }
 
+/**
+ * Returns `true` if the two specified arrays are *structurally* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ */
+@library("arrayEquals")
+public infix fun <T> Array<out T>.contentEquals(other: Array<out T>): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns `true` if the two specified arrays are *structurally* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ */
+@library("arrayEquals")
+public infix fun ByteArray.contentEquals(other: ByteArray): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns `true` if the two specified arrays are *structurally* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ */
+@library("arrayEquals")
+public infix fun ShortArray.contentEquals(other: ShortArray): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns `true` if the two specified arrays are *structurally* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ */
+@library("arrayEquals")
+public infix fun IntArray.contentEquals(other: IntArray): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns `true` if the two specified arrays are *structurally* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ */
+@library("arrayEquals")
+public infix fun LongArray.contentEquals(other: LongArray): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns `true` if the two specified arrays are *structurally* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ */
+@library("arrayEquals")
+public infix fun FloatArray.contentEquals(other: FloatArray): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns `true` if the two specified arrays are *structurally* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ */
+@library("arrayEquals")
+public infix fun DoubleArray.contentEquals(other: DoubleArray): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns `true` if the two specified arrays are *structurally* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ */
+@library("arrayEquals")
+public infix fun BooleanArray.contentEquals(other: BooleanArray): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns `true` if the two specified arrays are *structurally* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ */
+@library("arrayEquals")
+public infix fun CharArray.contentEquals(other: CharArray): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns `true` if the two specified arrays are *deeply* equal to one another,
+ * i.e. contain the same number of the same elements in the same order.
+ * 
+ * If two corresponding elements are nested arrays, they are also compared deeply.
+ * If any of arrays contains itself on any nesting level the behavior is undefined.
+ */
+@library("arrayDeepEquals")
+public infix fun <T> Array<out T>.contentDeepEquals(other: Array<out T>): Boolean {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of the specified array as if it is [List].
+ */
+@library("arrayToString")
+public fun <T> Array<out T>.contentToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of the specified array as if it is [List].
+ */
+@library("arrayToString")
+public fun ByteArray.contentToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of the specified array as if it is [List].
+ */
+@library("arrayToString")
+public fun ShortArray.contentToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of the specified array as if it is [List].
+ */
+@library("arrayToString")
+public fun IntArray.contentToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of the specified array as if it is [List].
+ */
+@library("arrayToString")
+public fun LongArray.contentToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of the specified array as if it is [List].
+ */
+@library("arrayToString")
+public fun FloatArray.contentToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of the specified array as if it is [List].
+ */
+@library("arrayToString")
+public fun DoubleArray.contentToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of the specified array as if it is [List].
+ */
+@library("arrayToString")
+public fun BooleanArray.contentToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of the specified array as if it is [List].
+ */
+@library("arrayToString")
+public fun CharArray.contentToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a string representation of the contents of this array as if it is [List].
+ * 
+ * Nested arrays are treated as lists too.
+ */
+@library("arrayToString")
+public fun <T> Array<out T>.contentDeepToString(): String {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ */
+@library("arrayHashCode")
+public fun <T> Array<out T>.contentHashCode(): Int {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ */
+@library("arrayHashCode")
+public fun ByteArray.contentHashCode(): Int {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ */
+@library("arrayHashCode")
+public fun ShortArray.contentHashCode(): Int {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ */
+@library("arrayHashCode")
+public fun IntArray.contentHashCode(): Int {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ */
+@library("arrayHashCode")
+public fun LongArray.contentHashCode(): Int {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ */
+@library("arrayHashCode")
+public fun FloatArray.contentHashCode(): Int {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ */
+@library("arrayHashCode")
+public fun DoubleArray.contentHashCode(): Int {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ */
+@library("arrayHashCode")
+public fun BooleanArray.contentHashCode(): Int {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ */
+@library("arrayHashCode")
+public fun CharArray.contentHashCode(): Int {
+    return noImpl
+}
+
+/**
+ * Returns a hash code based on the contents of this array as if it is [List].
+ * 
+ * Nested arrays are treated as lists too.
+ * If any of arrays contains itself on any nesting level the behavior is undefined.
+ */
+@library("arrayDeepHashCode")
+public fun <T> Array<out T>.contentDeepHashCode(): Int {
+    return noImpl
+}
+
 /**
  * Sorts the array in-place according to the order specified by the given [comparison] function.
  */

js/js.translator/testData/kotlin_lib.js

@@ -366,6 +366,44 @@
         return true;
     };
 
+    Kotlin.arrayDeepEquals = function (a, b) {
+        if (a === b) {
+            return true;
+        }
+        if (!Array.isArray(b) || a.length !== b.length) {
+            return false;
+        }
+
+        for (var i = 0, n = a.length; i < n; i++) {
+            if (Array.isArray(a[i])) {
+                if (!Kotlin.arrayDeepEquals(a[i], b[i])) {
+                    return false;
+                }
+            } else if (!Kotlin.equals(a[i], b[i])) {
+                return false;
+            }
+        }
+        return true;
+    };
+
+    Kotlin.arrayHashCode = function (arr) {
+        var result = 1;
+        for (var i = 0, n = arr.length; i < n; i++) {
+            result = ((31 * result | 0) + Kotlin.hashCode(arr[i])) | 0;
+        }
+        return result;
+    };
+
+    Kotlin.arrayDeepHashCode = function (arr) {
+        var result = 1;
+        for (var i = 0, n = arr.length; i < n; i++) {
+            var e = arr[i];
+            result = ((31 * result | 0) + (Array.isArray(e) ? Kotlin.arrayDeepHashCode(e) : Kotlin.hashCode(arr[i]))) | 0;
+        }
+        return result;
+    };
+
+
     var BaseOutput = Kotlin.createClassNow(null, null, {
             println: function (a) {
                 if (typeof a !== "undefined") this.print(a);