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node_modules/es-abstract/2016/CreateDataProperty.js

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+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var DefineOwnProperty = require('../helpers/DefineOwnProperty');
+
+var FromPropertyDescriptor = require('./FromPropertyDescriptor');
+var OrdinaryGetOwnProperty = require('./OrdinaryGetOwnProperty');
+var IsDataDescriptor = require('./IsDataDescriptor');
+var IsExtensible = require('./IsExtensible');
+var IsPropertyKey = require('./IsPropertyKey');
+var SameValue = require('./SameValue');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-createdataproperty
+
+module.exports = function CreateDataProperty(O, P, V) {
+	if (Type(O) !== 'Object') {
+		throw new $TypeError('Assertion failed: Type(O) is not Object');
+	}
+	if (!IsPropertyKey(P)) {
+		throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true');
+	}
+	var oldDesc = OrdinaryGetOwnProperty(O, P);
+	var extensible = !oldDesc || IsExtensible(O);
+	var immutable = oldDesc && (!oldDesc['[[Writable]]'] || !oldDesc['[[Configurable]]']);
+	if (immutable || !extensible) {
+		return false;
+	}
+	return DefineOwnProperty(
+		IsDataDescriptor,
+		SameValue,
+		FromPropertyDescriptor,
+		O,
+		P,
+		{
+			'[[Configurable]]': true,
+			'[[Enumerable]]': true,
+			'[[Value]]': V,
+			'[[Writable]]': true
+		}
+	);
+};