[es6] Spread in array literals

src/runtime.js

 // Copyright 2006-2008 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.
 
 // This files contains runtime support implemented in JavaScript.
 
 // CAUTION: Some of the functions specified in this file are called
 // directly from compiled code. These are the functions with names in
 // ALL CAPS. The compiled code passes the first argument in 'this'.
 
@@ skipping 36 matching lines @@
 var SHR;
 var SHR_STRONG;
 var DELETE;
 var IN;
 var INSTANCE_OF;
 var FILTER_KEY;
 var CALL_NON_FUNCTION;
 var CALL_NON_FUNCTION_AS_CONSTRUCTOR;
 var CALL_FUNCTION_PROXY;
 var CALL_FUNCTION_PROXY_AS_CONSTRUCTOR;
+var CONCAT_ITERABLE_TO_ARRAY;
 var APPLY_PREPARE;
 var REFLECT_APPLY_PREPARE;
 var REFLECT_CONSTRUCT_PREPARE;
 var STACK_OVERFLOW;
 var TO_OBJECT;
 var TO_NUMBER;
 var TO_STRING;
 var TO_NAME;
 
 var StringLengthTF_STUB;
@@ skipping 652 matching lines @@
   // big enough, but sanity check the value to avoid overflow when
   // multiplying with pointer size.
   if (length > kSafeArgumentsLength) throw %MakeRangeError(kStackOverflow);
 
   // Return the length which is the number of arguments to copy to the
   // stack. It is guaranteed to be a small integer at this point.
   return length;
 }
 
 
+CONCAT_ITERABLE_TO_ARRAY = function CONCAT_ITERABLE_TO_ARRAY(iterable) {
+  return %$concatIterableToArray(this, iterable);
+};
+
+
 STACK_OVERFLOW = function STACK_OVERFLOW(length) {
   throw %MakeRangeError(kStackOverflow);
 }
 
 
 // Convert the receiver to an object - forward to ToObject.
 TO_OBJECT = function TO_OBJECT() {
   return %$toObject(this);
 }
 
@@ skipping 195 matching lines @@
 
 function ConcatIterableToArray(target, iterable) {
    var index = target.length;
    for (var element of iterable) {
      %AddElement(target, index++, element, NONE);
    }
    return target;
 }
 
 
+function ConcatIterableToArray(target, iterable) {

[Dmitry Lomov (no reviews), 2015/05/20 20:36:33]

Duplicate function

[arv (Not doing code reviews), 2015/05/20 20:57:44]

Done.

Merge failure.

+  var index = target.length;
+  for (var element of iterable) {
+    %AddElement(target, index++, element, NONE);
+  }
+  return target;
+}
+
+
 /* ---------------------------------
    - - -   U t i l i t i e s   - - -
    ---------------------------------
 */
 
 // Returns if the given x is a primitive value - not an object or a
 // function.
 function IsPrimitive(x) {
   // Even though the type of null is "object", null is still
   // considered a primitive value. IS_SPEC_OBJECT handles this correctly
@@ skipping 78 matching lines @@
 $toLength = ToLength;
 $toName = ToName;
 $toNumber = ToNumber;
 $toObject = ToObject;
 $toPositiveInteger = ToPositiveInteger;
 $toPrimitive = ToPrimitive;
 $toString = ToString;
 $toUint32 = ToUint32;
 
 })