+++ /dev/null
-var anObject = require('../internals/an-object');
-var aFunction = require('../internals/a-function');
-var wellKnownSymbol = require('../internals/well-known-symbol');
-
-var SPECIES = wellKnownSymbol('species');
-
-// `SpeciesConstructor` abstract operation
-// https://tc39.github.io/ecma262/#sec-speciesconstructor
-module.exports = function (O, defaultConstructor) {
- var C = anObject(O).constructor;
- var S;
- return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? defaultConstructor : aFunction(S);
-};