cafe-grader-web Files · node_modules/es-abstract/2015/SpeciesConstructor.js

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submission report

Commit Description:

submission report

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                    node_modules/es-abstract/2015/SpeciesConstructor.js
                
             | 32 lines
             | 846 B
             | application/javascript 
             | JavascriptLexer
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      'use strict';

      var GetIntrinsic = require('../GetIntrinsic');

      var $species = GetIntrinsic('%Symbol.species%', true);

      var $TypeError = GetIntrinsic('%TypeError%');

      var IsConstructor = require('./IsConstructor');

      var Type = require('./Type');

      // https://ecma-international.org/ecma-262/6.0/#sec-speciesconstructor

      module.exports = function SpeciesConstructor(O, defaultConstructor) {

      	if (Type(O) !== 'Object') {

      		throw new $TypeError('Assertion failed: Type(O) is not Object');

      	}

      	var C = O.constructor;

      	if (typeof C === 'undefined') {

      		return defaultConstructor;

      	}

      	if (Type(C) !== 'Object') {

      		throw new $TypeError('O.constructor is not an Object');

      	}

      	var S = $species ? C[$species] : void 0;

      	if (S == null) {

      		return defaultConstructor;

      	}

      	if (IsConstructor(S)) {

      		return S;

      	}

      	throw new $TypeError('no constructor found');

      };

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				'use strict';

				var GetIntrinsic = require('../GetIntrinsic');

				var $species = GetIntrinsic('%Symbol.species%', true);
				var $TypeError = GetIntrinsic('%TypeError%');

				var IsConstructor = require('./IsConstructor');
				var Type = require('./Type');

				// https://ecma-international.org/ecma-262/6.0/#sec-speciesconstructor

				module.exports = function SpeciesConstructor(O, defaultConstructor) {
				if (Type(O) !== 'Object') {
				throw new $TypeError('Assertion failed: Type(O) is not Object');
				}
				var C = O.constructor;
				if (typeof C === 'undefined') {
				return defaultConstructor;
				}
				if (Type(C) !== 'Object') {
				throw new $TypeError('O.constructor is not an Object');
				}
				var S = $species ? C[$species] : void 0;
				if (S == null) {
				return defaultConstructor;
				}
				if (IsConstructor(S)) {
				return S;
				}
				throw new $TypeError('no constructor found');
				};