species.js - mozsearch

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var BUGNUMBER = 1131043;

var summary = "Implement @@species getter for builtin types";

print(BUGNUMBER + ": " + summary);

var TypedArray = Object.getPrototypeOf(Int8Array);

for (var C of [Array, Map, Set, RegExp,

               Int8Array, Uint8Array, Uint8ClampedArray,

               Int16Array, Uint16Array, Int32Array, Uint32Array,

               Float32Array, Float64Array,

               ArrayBuffer]) {

  assertEq(C[Symbol.species], C);

for (C of [Array, Map, Set, RegExp,

           TypedArray,

           ArrayBuffer]) {

  var desc = Object.getOwnPropertyDescriptor(C, Symbol.species);

  assertDeepEq(Object.keys(desc).sort(), ["configurable", "enumerable", "get", "set"]);

  assertEq(desc.set, undefined);

  assertEq(desc.enumerable, false);

  assertEq(desc.configurable, true);

  assertEq(desc.get.apply(null), null);

  assertEq(desc.get.apply(undefined), undefined);

  assertEq(desc.get.apply(42), 42);

if (typeof reportCompare === "function")

    reportCompare(0, 0);