Initial commit

javascript/node_modules/.staging/es-abstract-a73d3b42/2017/DefinePropertyOrThrow.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var isPropertyDescriptor = require('../helpers/isPropertyDescriptor');
+var DefineOwnProperty = require('../helpers/DefineOwnProperty');
+
+var FromPropertyDescriptor = require('./FromPropertyDescriptor');
+var IsAccessorDescriptor = require('./IsAccessorDescriptor');
+var IsDataDescriptor = require('./IsDataDescriptor');
+var IsPropertyKey = require('./IsPropertyKey');
+var SameValue = require('./SameValue');
+var ToPropertyDescriptor = require('./ToPropertyDescriptor');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-definepropertyorthrow
+
+module.exports = function DefinePropertyOrThrow(O, P, desc) {
+	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 Desc = isPropertyDescriptor({
+		Type: Type,
+		IsDataDescriptor: IsDataDescriptor,
+		IsAccessorDescriptor: IsAccessorDescriptor
+	}, desc) ? desc : ToPropertyDescriptor(desc);
+	if (!isPropertyDescriptor({
+		Type: Type,
+		IsDataDescriptor: IsDataDescriptor,
+		IsAccessorDescriptor: IsAccessorDescriptor
+	}, Desc)) {
+		throw new $TypeError('Assertion failed: Desc is not a valid Property Descriptor');
+	}
+
+	return DefineOwnProperty(
+		IsDataDescriptor,
+		SameValue,
+		FromPropertyDescriptor,
+		O,
+		P,
+		Desc
+	);
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2017/DeletePropertyOrThrow.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var IsPropertyKey = require('./IsPropertyKey');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-deletepropertyorthrow
+
+module.exports = function DeletePropertyOrThrow(O, P) {
+	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');
+	}
+
+	// eslint-disable-next-line no-param-reassign
+	var success = delete O[P];
+	if (!success) {
+		throw new $TypeError('Attempt to delete property failed.');
+	}
+	return success;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2017/EnumerableOwnProperties.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var objectKeys = require('object-keys');
+
+var callBound = require('call-bind/callBound');
+
+var callBind = require('call-bind');
+
+var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable');
+var $pushApply = callBind.apply(GetIntrinsic('%Array.prototype.push%'));
+
+var forEach = require('../helpers/forEach');
+
+var Type = require('./Type');
+
+// https://262.ecma-international.org/8.0/#sec-enumerableownproperties
+
+module.exports = function EnumerableOwnProperties(O, kind) {
+	if (Type(O) !== 'Object') {
+		throw new $TypeError('Assertion failed: Type(O) is not Object');
+	}
+
+	var keys = objectKeys(O);
+	if (kind === 'key') {
+		return keys;
+	}
+	if (kind === 'value' || kind === 'key+value') {
+		var results = [];
+		forEach(keys, function (key) {
+			if ($isEnumerable(O, key)) {
+				$pushApply(results, [
+					kind === 'value' ? O[key] : [key, O[key]]
+				]);
+			}
+		});
+		return results;
+	}
+	throw new $TypeError('Assertion failed: "kind" is not "key", "value", or "key+value": ' + kind);
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2017/abs.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $abs = GetIntrinsic('%Math.abs%');
+
+// http://262.ecma-international.org/5.1/#sec-5.2
+
+module.exports = function abs(x) {
+	return $abs(x);
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/AbstractEqualityComparison.js

+'use strict';
+
+var ToNumber = require('./ToNumber');
+var ToPrimitive = require('./ToPrimitive');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-abstract-equality-comparison
+
+module.exports = function AbstractEqualityComparison(x, y) {
+	var xType = Type(x);
+	var yType = Type(y);
+	if (xType === yType) {
+		return x === y; // ES6+ specified this shortcut anyways.
+	}
+	if (x == null && y == null) {
+		return true;
+	}
+	if (xType === 'Number' && yType === 'String') {
+		return AbstractEqualityComparison(x, ToNumber(y));
+	}
+	if (xType === 'String' && yType === 'Number') {
+		return AbstractEqualityComparison(ToNumber(x), y);
+	}
+	if (xType === 'Boolean') {
+		return AbstractEqualityComparison(ToNumber(x), y);
+	}
+	if (yType === 'Boolean') {
+		return AbstractEqualityComparison(x, ToNumber(y));
+	}
+	if ((xType === 'String' || xType === 'Number' || xType === 'Symbol') && yType === 'Object') {
+		return AbstractEqualityComparison(x, ToPrimitive(y));
+	}
+	if (xType === 'Object' && (yType === 'String' || yType === 'Number' || yType === 'Symbol')) {
+		return AbstractEqualityComparison(ToPrimitive(x), y);
+	}
+	return false;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/AbstractRelationalComparison.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $Number = GetIntrinsic('%Number%');
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var $isNaN = require('../helpers/isNaN');
+var $isFinite = require('../helpers/isFinite');
+
+var IsStringPrefix = require('./IsStringPrefix');
+var ToNumber = require('./ToNumber');
+var ToPrimitive = require('./ToPrimitive');
+var Type = require('./Type');
+
+// https://262.ecma-international.org/9.0/#sec-abstract-relational-comparison
+
+module.exports = function AbstractRelationalComparison(x, y, LeftFirst) {
+	if (Type(LeftFirst) !== 'Boolean') {
+		throw new $TypeError('Assertion failed: LeftFirst argument must be a Boolean');
+	}
+	var px;
+	var py;
+	if (LeftFirst) {
+		px = ToPrimitive(x, $Number);
+		py = ToPrimitive(y, $Number);
+	} else {
+		py = ToPrimitive(y, $Number);
+		px = ToPrimitive(x, $Number);
+	}
+	if (Type(px) === 'String' && Type(py) === 'String') {
+		if (IsStringPrefix(py, px)) {
+			return false;
+		}
+		if (IsStringPrefix(px, py)) {
+			return true;
+		}
+		return px < py; // both strings, neither a prefix of the other. shortcut for steps 3 c-f
+	}
+	var nx = ToNumber(px);
+	var ny = ToNumber(py);
+	if ($isNaN(nx) || $isNaN(ny)) {
+		return undefined;
+	}
+	if ($isFinite(nx) && $isFinite(ny) && nx === ny) {
+		return false;
+	}
+	if (nx === Infinity) {
+		return false;
+	}
+	if (ny === Infinity) {
+		return true;
+	}
+	if (ny === -Infinity) {
+		return false;
+	}
+	if (nx === -Infinity) {
+		return true;
+	}
+	return nx < ny; // by now, these are both nonzero, finite, and not equal
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/AdvanceStringIndex.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var IsInteger = require('./IsInteger');
+var Type = require('./Type');
+
+var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
+var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var $charCodeAt = require('call-bind/callBound')('String.prototype.charCodeAt');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-advancestringindex
+
+module.exports = function AdvanceStringIndex(S, index, unicode) {
+	if (Type(S) !== 'String') {
+		throw new $TypeError('Assertion failed: `S` must be a String');
+	}
+	if (!IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+		throw new $TypeError('Assertion failed: `length` must be an integer >= 0 and <= 2**53');
+	}
+	if (Type(unicode) !== 'Boolean') {
+		throw new $TypeError('Assertion failed: `unicode` must be a Boolean');
+	}
+	if (!unicode) {
+		return index + 1;
+	}
+	var length = S.length;
+	if ((index + 1) >= length) {
+		return index + 1;
+	}
+
+	var first = $charCodeAt(S, index);
+	if (!isLeadingSurrogate(first)) {
+		return index + 1;
+	}
+
+	var second = $charCodeAt(S, index + 1);
+	if (!isTrailingSurrogate(second)) {
+		return index + 1;
+	}
+
+	return index + 2;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/ArrayCreate.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $ArrayPrototype = GetIntrinsic('%Array.prototype%');
+var $RangeError = GetIntrinsic('%RangeError%');
+var $SyntaxError = GetIntrinsic('%SyntaxError%');
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var IsInteger = require('./IsInteger');
+
+var MAX_ARRAY_LENGTH = Math.pow(2, 32) - 1;
+
+var $setProto = GetIntrinsic('%Object.setPrototypeOf%', true) || (
+	// eslint-disable-next-line no-proto, no-negated-condition
+	[].__proto__ !== $ArrayPrototype
+		? null
+		: function (O, proto) {
+			O.__proto__ = proto; // eslint-disable-line no-proto, no-param-reassign
+			return O;
+		}
+);
+
+// https://ecma-international.org/ecma-262/6.0/#sec-arraycreate
+
+module.exports = function ArrayCreate(length) {
+	if (!IsInteger(length) || length < 0) {
+		throw new $TypeError('Assertion failed: `length` must be an integer Number >= 0');
+	}
+	if (length > MAX_ARRAY_LENGTH) {
+		throw new $RangeError('length is greater than (2**32 - 1)');
+	}
+	var proto = arguments.length > 1 ? arguments[1] : $ArrayPrototype;
+	var A = []; // steps 5 - 7, and 9
+	if (proto !== $ArrayPrototype) { // step 8
+		if (!$setProto) {
+			throw new $SyntaxError('ArrayCreate: a `proto` argument that is not `Array.prototype` is not supported in an environment that does not support setting the [[Prototype]]');
+		}
+		$setProto(A, proto);
+	}
+	if (length !== 0) { // bypasses the need for step 2
+		A.length = length;
+	}
+	/* step 10, the above as a shortcut for the below
+	OrdinaryDefineOwnProperty(A, 'length', {
+		'[[Configurable]]': false,
+		'[[Enumerable]]': false,
+		'[[Value]]': length,
+		'[[Writable]]': true
+	});
+	*/
+	return A;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/ArraySetLength.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $RangeError = GetIntrinsic('%RangeError%');
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var assign = require('object.assign');
+
+var isPropertyDescriptor = require('../helpers/isPropertyDescriptor');
+
+var IsArray = require('./IsArray');
+var IsAccessorDescriptor = require('./IsAccessorDescriptor');
+var IsDataDescriptor = require('./IsDataDescriptor');
+var OrdinaryDefineOwnProperty = require('./OrdinaryDefineOwnProperty');
+var OrdinaryGetOwnProperty = require('./OrdinaryGetOwnProperty');
+var ToNumber = require('./ToNumber');
+var ToString = require('./ToString');
+var ToUint32 = require('./ToUint32');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-arraysetlength
+
+// eslint-disable-next-line max-statements, max-lines-per-function
+module.exports = function ArraySetLength(A, Desc) {
+	if (!IsArray(A)) {
+		throw new $TypeError('Assertion failed: A must be an Array');
+	}
+	if (!isPropertyDescriptor({
+		Type: Type,
+		IsDataDescriptor: IsDataDescriptor,
+		IsAccessorDescriptor: IsAccessorDescriptor
+	}, Desc)) {
+		throw new $TypeError('Assertion failed: Desc must be a Property Descriptor');
+	}
+	if (!('[[Value]]' in Desc)) {
+		return OrdinaryDefineOwnProperty(A, 'length', Desc);
+	}
+	var newLenDesc = assign({}, Desc);
+	var newLen = ToUint32(Desc['[[Value]]']);
+	var numberLen = ToNumber(Desc['[[Value]]']);
+	if (newLen !== numberLen) {
+		throw new $RangeError('Invalid array length');
+	}
+	newLenDesc['[[Value]]'] = newLen;
+	var oldLenDesc = OrdinaryGetOwnProperty(A, 'length');
+	if (!IsDataDescriptor(oldLenDesc)) {
+		throw new $TypeError('Assertion failed: an array had a non-data descriptor on `length`');
+	}
+	var oldLen = oldLenDesc['[[Value]]'];
+	if (newLen >= oldLen) {
+		return OrdinaryDefineOwnProperty(A, 'length', newLenDesc);
+	}
+	if (!oldLenDesc['[[Writable]]']) {
+		return false;
+	}
+	var newWritable;
+	if (!('[[Writable]]' in newLenDesc) || newLenDesc['[[Writable]]']) {
+		newWritable = true;
+	} else {
+		newWritable = false;
+		newLenDesc['[[Writable]]'] = true;
+	}
+	var succeeded = OrdinaryDefineOwnProperty(A, 'length', newLenDesc);
+	if (!succeeded) {
+		return false;
+	}
+	while (newLen < oldLen) {
+		oldLen -= 1;
+		// eslint-disable-next-line no-param-reassign
+		var deleteSucceeded = delete A[ToString(oldLen)];
+		if (!deleteSucceeded) {
+			newLenDesc['[[Value]]'] = oldLen + 1;
+			if (!newWritable) {
+				newLenDesc['[[Writable]]'] = false;
+				OrdinaryDefineOwnProperty(A, 'length', newLenDesc);
+				return false;
+			}
+		}
+	}
+	if (!newWritable) {
+		return OrdinaryDefineOwnProperty(A, 'length', { '[[Writable]]': false });
+	}
+	return true;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/ArraySpeciesCreate.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $Array = GetIntrinsic('%Array%');
+var $species = GetIntrinsic('%Symbol.species%', true);
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var Get = require('./Get');
+var IsArray = require('./IsArray');
+var IsConstructor = require('./IsConstructor');
+var IsInteger = require('./IsInteger');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-arrayspeciescreate
+
+module.exports = function ArraySpeciesCreate(originalArray, length) {
+	if (!IsInteger(length) || length < 0) {
+		throw new $TypeError('Assertion failed: length must be an integer >= 0');
+	}
+	var len = length === 0 ? 0 : length;
+	var C;
+	var isArray = IsArray(originalArray);
+	if (isArray) {
+		C = Get(originalArray, 'constructor');
+		// TODO: figure out how to make a cross-realm normal Array, a same-realm Array
+		// if (IsConstructor(C)) {
+		// 	if C is another realm's Array, C = undefined
+		// 	Object.getPrototypeOf(Object.getPrototypeOf(Object.getPrototypeOf(Array))) === null ?
+		// }
+		if ($species && Type(C) === 'Object') {
+			C = Get(C, $species);
+			if (C === null) {
+				C = void 0;
+			}
+		}
+	}
+	if (typeof C === 'undefined') {
+		return $Array(len);
+	}
+	if (!IsConstructor(C)) {
+		throw new $TypeError('C must be a constructor');
+	}
+	return new C(len); // Construct(C, len);
+};
+

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/Call.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+var callBound = require('call-bind/callBound');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var IsArray = require('./IsArray');
+
+var $apply = GetIntrinsic('%Reflect.apply%', true) || callBound('%Function.prototype.apply%');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-call
+
+module.exports = function Call(F, V) {
+	var argumentsList = arguments.length > 2 ? arguments[2] : [];
+	if (!IsArray(argumentsList)) {
+		throw new $TypeError('Assertion failed: optional `argumentsList`, if provided, must be a List');
+	}
+	return $apply(F, V, argumentsList);
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/CanonicalNumericIndexString.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var SameValue = require('./SameValue');
+var ToNumber = require('./ToNumber');
+var ToString = require('./ToString');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-canonicalnumericindexstring
+
+module.exports = function CanonicalNumericIndexString(argument) {
+	if (Type(argument) !== 'String') {
+		throw new $TypeError('Assertion failed: `argument` must be a String');
+	}
+	if (argument === '-0') { return -0; }
+	var n = ToNumber(argument);
+	if (SameValue(ToString(n), argument)) { return n; }
+	return void 0;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/CharacterRange.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+var callBound = require('call-bind/callBound');
+
+var $fromCharCode = GetIntrinsic('%String.fromCharCode%');
+var $TypeError = GetIntrinsic('%TypeError%');
+var $charCodeAt = callBound('%String.prototype.charCodeAt%');
+var $push = callBound('%Array.prototype.push%');
+
+module.exports = function CharacterRange(A, B) {
+	if (A.length !== 1 || B.length !== 1) {
+		throw new $TypeError('Assertion failed: CharSets A and B contain exactly one character');
+	}
+
+	var a = A[0];
+	var b = B[0];
+
+	var i = $charCodeAt(a, 0);
+	var j = $charCodeAt(b, 0);
+
+	if (!(i <= j)) {
+		throw new $TypeError('Assertion failed: i is not <= j');
+	}
+
+	var arr = [];
+	for (var k = i; k <= j; k += 1) {
+		$push(arr, $fromCharCode(k));
+	}
+	return arr;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/CompletePropertyDescriptor.js

+'use strict';
+
+var has = require('has');
+
+var assertRecord = require('../helpers/assertRecord');
+
+var IsDataDescriptor = require('./IsDataDescriptor');
+var IsGenericDescriptor = require('./IsGenericDescriptor');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-completepropertydescriptor
+
+module.exports = function CompletePropertyDescriptor(Desc) {
+	/* eslint no-param-reassign: 0 */
+	assertRecord(Type, 'Property Descriptor', 'Desc', Desc);
+
+	if (IsGenericDescriptor(Desc) || IsDataDescriptor(Desc)) {
+		if (!has(Desc, '[[Value]]')) {
+			Desc['[[Value]]'] = void 0;
+		}
+		if (!has(Desc, '[[Writable]]')) {
+			Desc['[[Writable]]'] = false;
+		}
+	} else {
+		if (!has(Desc, '[[Get]]')) {
+			Desc['[[Get]]'] = void 0;
+		}
+		if (!has(Desc, '[[Set]]')) {
+			Desc['[[Set]]'] = void 0;
+		}
+	}
+	if (!has(Desc, '[[Enumerable]]')) {
+		Desc['[[Enumerable]]'] = false;
+	}
+	if (!has(Desc, '[[Configurable]]')) {
+		Desc['[[Configurable]]'] = false;
+	}
+	return Desc;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/CopyDataProperties.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var callBound = require('call-bind/callBound');
+var forEach = require('../helpers/forEach');
+var OwnPropertyKeys = require('../helpers/OwnPropertyKeys');
+
+var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable');
+
+var CreateDataProperty = require('./CreateDataProperty');
+var Get = require('./Get');
+var IsArray = require('./IsArray');
+var IsInteger = require('./IsInteger');
+var IsPropertyKey = require('./IsPropertyKey');
+var SameValue = require('./SameValue');
+var ToNumber = require('./ToNumber');
+var ToObject = require('./ToObject');
+var Type = require('./Type');
+
+// https://262.ecma-international.org/9.0/#sec-copydataproperties
+
+module.exports = function CopyDataProperties(target, source, excludedItems) {
+	if (Type(target) !== 'Object') {
+		throw new $TypeError('Assertion failed: "target" must be an Object');
+	}
+
+	if (!IsArray(excludedItems)) {
+		throw new $TypeError('Assertion failed: "excludedItems" must be a List of Property Keys');
+	}
+	for (var i = 0; i < excludedItems.length; i += 1) {
+		if (!IsPropertyKey(excludedItems[i])) {
+			throw new $TypeError('Assertion failed: "excludedItems" must be a List of Property Keys');
+		}
+	}
+
+	if (typeof source === 'undefined' || source === null) {
+		return target;
+	}
+
+	var fromObj = ToObject(source);
+
+	var sourceKeys = OwnPropertyKeys(fromObj);
+	forEach(sourceKeys, function (nextKey) {
+		var excluded = false;
+
+		forEach(excludedItems, function (e) {
+			if (SameValue(e, nextKey) === true) {
+				excluded = true;
+			}
+		});
+
+		var enumerable = $isEnumerable(fromObj, nextKey) || (
+		// this is to handle string keys being non-enumerable in older engines
+			typeof source === 'string'
+			&& nextKey >= 0
+			&& IsInteger(ToNumber(nextKey))
+		);
+		if (excluded === false && enumerable) {
+			var propValue = Get(fromObj, nextKey);
+			CreateDataProperty(target, nextKey, propValue);
+		}
+	});
+
+	return target;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/CreateDataProperty.js

+'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 nonConfigurable = oldDesc && !oldDesc['[[Configurable]]'];
+	if (nonConfigurable || !extensible) {
+		return false;
+	}
+	return DefineOwnProperty(
+		IsDataDescriptor,
+		SameValue,
+		FromPropertyDescriptor,
+		O,
+		P,
+		{
+			'[[Configurable]]': true,
+			'[[Enumerable]]': true,
+			'[[Value]]': V,
+			'[[Writable]]': true
+		}
+	);
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/CreateDataPropertyOrThrow.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var CreateDataProperty = require('./CreateDataProperty');
+var IsPropertyKey = require('./IsPropertyKey');
+var Type = require('./Type');
+
+// // https://ecma-international.org/ecma-262/6.0/#sec-createdatapropertyorthrow
+
+module.exports = function CreateDataPropertyOrThrow(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 success = CreateDataProperty(O, P, V);
+	if (!success) {
+		throw new $TypeError('unable to create data property');
+	}
+	return success;
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/CreateHTML.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var callBound = require('call-bind/callBound');
+
+var $replace = callBound('String.prototype.replace');
+
+var RequireObjectCoercible = require('./RequireObjectCoercible');
+var ToString = require('./ToString');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-createhtml
+
+module.exports = function CreateHTML(string, tag, attribute, value) {
+	if (Type(tag) !== 'String' || Type(attribute) !== 'String') {
+		throw new $TypeError('Assertion failed: `tag` and `attribute` must be strings');
+	}
+	var str = RequireObjectCoercible(string);
+	var S = ToString(str);
+	var p1 = '<' + tag;
+	if (attribute !== '') {
+		var V = ToString(value);
+		var escapedV = $replace(V, /\x22/g, '&quot;');
+		p1 += '\x20' + attribute + '\x3D\x22' + escapedV + '\x22';
+	}
+	return p1 + '>' + S + '</' + tag + '>';
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/CreateIterResultObject.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-createiterresultobject
+
+module.exports = function CreateIterResultObject(value, done) {
+	if (Type(done) !== 'Boolean') {
+		throw new $TypeError('Assertion failed: Type(done) is not Boolean');
+	}
+	return {
+		value: value,
+		done: done
+	};
+};

javascript/node_modules/.staging/es-abstract-a73d3b42/2018/CreateListFromArrayLike.js

+'use strict';
+
+var GetIntrinsic = require('get-intrinsic');
+
+var callBound = require('call-bind/callBound');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+var $indexOf = callBound('Array.prototype.indexOf', true) || callBound('String.prototype.indexOf');
+var $push = callBound('Array.prototype.push');
+
+var Get = require('./Get');
+var IsArray = require('./IsArray');
+var ToLength = require('./ToLength');
+var ToString = require('./ToString');
+var Type = require('./Type');
+
+// https://ecma-international.org/ecma-262/6.0/#sec-createlistfromarraylike
+module.exports = function CreateListFromArrayLike(obj) {
+	var elementTypes = arguments.length > 1
+		? arguments[1]
+		: ['Undefined', 'Null', 'Boolean', 'String', 'Symbol', 'Number', 'Object'];
+
+	if (Type(obj) !== 'Object') {
+		throw new $TypeError('Assertion failed: `obj` must be an Object');
+	}
+	if (!IsArray(elementTypes)) {
+		throw new $TypeError('Assertion failed: `elementTypes`, if provided, must be an array');
+	}
+	var len = ToLength(Get(obj, 'length'));
+	var list = [];
+	var index = 0;
+	while (index < len) {
+		var indexName = ToString(index);
+		var next = Get(obj, indexName);
+		var nextType = Type(next);
+		if ($indexOf(elementTypes, nextType) < 0) {
+			throw new $TypeError('item type ' + nextType + ' is not a valid elementType');
+		}
+		$push(list, next);
+		index += 1;
+	}
+	return list;
+};