1 files changed, 118 insertions, 0 deletions
diff --git a/deps/v8/src/js/harmony-array-includes.js b/deps/v8/src/js/harmony-array-includes.js
new file mode 100644
index 0000000000..bb1f01cd57
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+++ b/deps/v8/src/js/harmony-array-includes.js
@@ -0,0 +1,118 @@
+// Copyright 2014 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+(function(global, utils) {
+
+'use strict';
+
+%CheckIsBootstrapping();
+
+// -------------------------------------------------------------------
+// Imports
+
+var GlobalArray = global.Array;
+var MakeTypeError;
+var SameValueZero;
+
+utils.Import(function(from) {
+  MakeTypeError = from.MakeTypeError;
+  SameValueZero = from.SameValueZero;
+});
+
+// -------------------------------------------------------------------
+
+// Proposed for ES7
+// https://github.com/tc39/Array.prototype.includes
+// 46c7532ec8499dea3e51aeb940d09e07547ed3f5
+function InnerArrayIncludes(searchElement, fromIndex, array, length) {
+  if (length === 0) {
+    return false;
+  }
+
+  var n = TO_INTEGER(fromIndex);
+
+  var k;
+  if (n >= 0) {
+    k = n;
+  } else {
+    k = length + n;
+    if (k < 0) {
+      k = 0;
+    }
+  }
+
+  while (k < length) {
+    var elementK = array[k];
+    if (SameValueZero(searchElement, elementK)) {
+      return true;
+    }
+
+    ++k;
+  }
+
+  return false;
+}
+
+
+function ArrayIncludes(searchElement, fromIndex) {
+  CHECK_OBJECT_COERCIBLE(this, "Array.prototype.includes");
+
+  var array = TO_OBJECT(this);
+  var length = TO_LENGTH(array.length);
+
+  return InnerArrayIncludes(searchElement, fromIndex, array, length);
+}
+
+
+function TypedArrayIncludes(searchElement, fromIndex) {
+  if (!%_IsTypedArray(this)) throw MakeTypeError(kNotTypedArray);
+
+  var length = %_TypedArrayGetLength(this);
+
+  return InnerArrayIncludes(searchElement, fromIndex, this, length);
+}
+
+// -------------------------------------------------------------------
+
+%FunctionSetLength(ArrayIncludes, 1);
+%FunctionSetLength(TypedArrayIncludes, 1);
+
+// Set up the non-enumerable function on the Array prototype object.
+utils.InstallFunctions(GlobalArray.prototype, DONT_ENUM, [
+  "includes", ArrayIncludes
+]);
+
+// Set up the non-enumerable function on the typed array prototypes.
+// This duplicates some of the machinery in harmony-typedarray.js in order to
+// keep includes behind the separate --harmony-array-includes flag.
+// TODO(littledan): Fix the TypedArray proto chain (bug v8:4085).
+
+macro TYPED_ARRAYS(FUNCTION)
+// arrayIds below should be synchronized with Runtime_TypedArrayInitialize.
+FUNCTION(Uint8Array)
+FUNCTION(Int8Array)
+FUNCTION(Uint16Array)
+FUNCTION(Int16Array)
+FUNCTION(Uint32Array)
+FUNCTION(Int32Array)
+FUNCTION(Float32Array)
+FUNCTION(Float64Array)
+FUNCTION(Uint8ClampedArray)
+endmacro
+
+macro DECLARE_GLOBALS(NAME)
+var GlobalNAME = global.NAME;
+endmacro
+
+macro EXTEND_TYPED_ARRAY(NAME)
+// Set up non-enumerable functions on the prototype object.
+utils.InstallFunctions(GlobalNAME.prototype, DONT_ENUM, [
+  "includes", TypedArrayIncludes
+]);
+endmacro
+
+TYPED_ARRAYS(DECLARE_GLOBALS)
+TYPED_ARRAYS(EXTEND_TYPED_ARRAY)
+
+})