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-rw-r--r--src/node_modules/es-abstract/2020/OrdinaryObjectCreate.js46
1 files changed, 46 insertions, 0 deletions
diff --git a/src/node_modules/es-abstract/2020/OrdinaryObjectCreate.js b/src/node_modules/es-abstract/2020/OrdinaryObjectCreate.js
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+++ b/src/node_modules/es-abstract/2020/OrdinaryObjectCreate.js
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+'use strict';
+
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $ObjectCreate = GetIntrinsic('%Object.create%', true);
+var $TypeError = GetIntrinsic('%TypeError%');
+var $SyntaxError = GetIntrinsic('%SyntaxError%');
+
+var IsArray = require('./IsArray');
+var Type = require('./Type');
+
+var hasProto = !({ __proto__: null } instanceof Object);
+
+// https://www.ecma-international.org/ecma-262/6.0/#sec-objectcreate
+
+module.exports = function OrdinaryObjectCreate(proto) {
+ if (proto !== null && Type(proto) !== 'Object') {
+ throw new $TypeError('Assertion failed: `proto` must be null or an object');
+ }
+ var additionalInternalSlotsList = arguments.length < 2 ? [] : arguments[1];
+ if (!IsArray(additionalInternalSlotsList)) {
+ throw new $TypeError('Assertion failed: `additionalInternalSlotsList` must be an Array');
+ }
+ // var internalSlotsList = ['[[Prototype]]', '[[Extensible]]'];
+ if (additionalInternalSlotsList.length > 0) {
+ throw new $SyntaxError('es-abstract does not yet support internal slots');
+ // internalSlotsList.push(...additionalInternalSlotsList);
+ }
+ // var O = MakeBasicObject(internalSlotsList);
+ // setProto(O, proto);
+ // return O;
+
+ if ($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();
+};