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

cafe-grader-web

Location: cafe-grader-web/node_modules/es-abstract/2015/ObjectCreate.js

Commit Description:

submission report

Commit Description:

submission report

References:

r790:7ddf708c67bd default

File last commit:

r789:8cd7e8db7e38 default

Show/Diff file:

Action:

            
                    node_modules/es-abstract/2015/ObjectCreate.js
                
             | 37 lines
             | 1.0 KiB
             | application/javascript 
             | JavascriptLexer
             | 
      
            History
        
           Show Full History
         |
          Annotation
         | Raw
         |
              
              Download
              
      'use strict';

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

      var $ObjectCreate = GetIntrinsic('%Object.create%', true);

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

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

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

      var hasProto = !({ __proto__: null } instanceof Object);

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

      module.exports = function ObjectCreate(proto, internalSlotsList) {

      	if (proto !== null && Type(proto) !== 'Object') {

      		throw new $TypeError('Assertion failed: `proto` must be null or an object');

      	}

      	var slots = arguments.length < 2 ? [] : internalSlotsList;

      	if (slots.length > 0) {

      		throw new $SyntaxError('es-abstract does not yet support internal slots');

      	}

      	if ($ObjectCreate) {

      		return $ObjectCreate(proto);

      	}

      	if (hasProto) {

      		return { __proto__: proto };

      	}

      	if (proto === null) {

      		throw new $SyntaxError('native Object.create support is required to create null objects');

      	}

      	var T = function T() {};

      	T.prototype = proto;

      	return new T();

      };

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository permissions settings

Sign in to your account

Last Author

				'use strict';

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

				var $ObjectCreate = GetIntrinsic('%Object.create%', true);
				var $TypeError = GetIntrinsic('%TypeError%');
				var $SyntaxError = GetIntrinsic('%SyntaxError%');

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

				var hasProto = !({ __proto__: null } instanceof Object);

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

				module.exports = function ObjectCreate(proto, internalSlotsList) {
				if (proto !== null && Type(proto) !== 'Object') {
				throw new $TypeError('Assertion failed: `proto` must be null or an object');
				}
				var slots = arguments.length < 2 ? [] : internalSlotsList;
				if (slots.length > 0) {
				throw new $SyntaxError('es-abstract does not yet support internal slots');
				}

				if ($ObjectCreate) {
				return $ObjectCreate(proto);
				}
				if (hasProto) {
				return { __proto__: proto };
				}

				if (proto === null) {
				throw new $SyntaxError('native Object.create support is required to create null objects');
				}
				var T = function T() {};
				T.prototype = proto;
				return new T();
				};