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Backed out changeset 0344adae92f3 (bug 1165052)

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This commit is contained in:
Tooru Fujisawa 2016-03-28 06:49:56 +09:00
parent 65ee39fbf2
commit b5f61d2a75
1 changed files with 0 additions and 47 deletions
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47
js/src/builtin/Array.js
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@ -876,53 +876,6 @@ function ArraySpecies() {
return this;
}
// ES 2016 draft Mar 25, 2016 9.4.2.3.
function ArraySpeciesCreate(originalArray, length) {
// Step 1.
assert(typeof length == "number", "length should be a number");
assert(length >= 0, "length should be a non-negative number");
// Step 2.
if (length === -0)
length = 0;
// Step 4, 6.
if (!IsArray(originalArray))
return std_Array(length);
// Step 5.a.
var C = originalArray.constructor;
// Step 5.b.
if (IsConstructor(C) && IsWrappedArrayConstructor(C))
return std_Array(length);
// Step 5.c.
if (IsObject(C)) {
// Step 5.c.i.
C = C[std_species];
// Optimized path for an ordinary Array.
if (C === GetBuiltinConstructor("Array"))
return std_Array(length);
// Step 5.c.ii.
if (C === null)
return std_Array(length);
}
// Step 6.
if (C === undefined)
return std_Array(length);
// Step 7.
if (!IsConstructor(C))
ThrowTypeError(JSMSG_NOT_CONSTRUCTOR, "constructor property");
// Step 8.
return new C(length);
}
// ES 2016 draft Mar 25, 2016 22.1.3.1.
// Note: Array.prototype.concat.length is 1.
function ArrayConcat(arg1) {