[builtins] implement Array.prototype.includes in TurboFan

src/js/array.js

 // Copyright 2012 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, extrasUtils) {
 
 "use strict";
 
 %CheckIsBootstrapping();
 
@@ skipping 1474 matching lines @@
 function ArrayFill(value, start, end) {
   CHECK_OBJECT_COERCIBLE(this, "Array.prototype.fill");
 
   var array = TO_OBJECT(this);
   var length = TO_LENGTH(array.length);
 
   return InnerArrayFill(value, start, end, array, length);
 }
 
 
-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;
-}
-
-
-// ES2016 draft, section 22.1.3.11
-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);
-}
-
-
 // ES6, draft 10-14-14, section 22.1.2.1
 function ArrayFrom(arrayLike, mapfn, receiver) {
   var items = TO_OBJECT(arrayLike);
   var mapping = !IS_UNDEFINED(mapfn);
 
   if (mapping) {
     if (!IS_CALLABLE(mapfn)) {
       throw MakeTypeError(kCalledNonCallable, mapfn);
     }
   }
@@ skipping 124 matching lines @@
   "every", getFunction("every", ArrayEvery, 1),
   "map", getFunction("map", ArrayMap, 1),
   "indexOf", getFunction("indexOf", ArrayIndexOf, 1),
   "lastIndexOf", getFunction("lastIndexOf", ArrayLastIndexOf, 1),
   "reduce", getFunction("reduce", ArrayReduce, 1),
   "reduceRight", getFunction("reduceRight", ArrayReduceRight, 1),
   "copyWithin", getFunction("copyWithin", ArrayCopyWithin, 2),
   "find", getFunction("find", ArrayFind, 1),
   "findIndex", getFunction("findIndex", ArrayFindIndex, 1),
   "fill", getFunction("fill", ArrayFill, 1),
-  "includes", getFunction("includes", ArrayIncludes, 1),
+  "includes", getFunction("includes", null, 1)
 ]);
 
 utils.InstallGetter(GlobalArray, speciesSymbol, ArraySpecies);
 
 %FinishArrayPrototypeSetup(GlobalArray.prototype);
 
 // The internal Array prototype doesn't need to be fancy, since it's never
 // exposed to user code.
 // Adding only the functions that are actually used.
 utils.SetUpLockedPrototype(InternalArray, GlobalArray(), [
@@ skipping 33 matching lines @@
   to.ArrayJoin = ArrayJoin;
   to.ArrayPush = ArrayPush;
   to.ArrayToString = ArrayToString;
   to.InnerArrayCopyWithin = InnerArrayCopyWithin;
   to.InnerArrayEvery = InnerArrayEvery;
   to.InnerArrayFill = InnerArrayFill;
   to.InnerArrayFilter = InnerArrayFilter;
   to.InnerArrayFind = InnerArrayFind;
   to.InnerArrayFindIndex = InnerArrayFindIndex;
   to.InnerArrayForEach = InnerArrayForEach;
-  to.InnerArrayIncludes = InnerArrayIncludes;
   to.InnerArrayIndexOf = InnerArrayIndexOf;
   to.InnerArrayJoin = InnerArrayJoin;
   to.InnerArrayLastIndexOf = InnerArrayLastIndexOf;
   to.InnerArrayReduce = InnerArrayReduce;
   to.InnerArrayReduceRight = InnerArrayReduceRight;
   to.InnerArraySome = InnerArraySome;
   to.InnerArraySort = InnerArraySort;
   to.InnerArrayToLocaleString = InnerArrayToLocaleString;
   to.PackedArrayReverse = PackedArrayReverse;
 });
 
 %InstallToContext([
   "array_pop", ArrayPop,
   "array_push", ArrayPush,
   "array_shift", ArrayShift,
   "array_splice", ArraySplice,
   "array_slice", ArraySlice,
   "array_unshift", ArrayUnshift,
 ]);
 
 });