es-abstract - npm Package Compare versions

Comparing version 1.11.0 to 1.12.0

.jscs.json

@@ -126,3 +126,3 @@ {
 
-	"disallowMultiLineTernary": true,
+	"disallowMultiLineTernary": false,
 
@@ -156,5 +156,3 @@ "validateOrderInObjectKeys": false,
 
-	"requireCapitalizedConstructorsNew": {
-		"allExcept": ["Function", "String", "Object", "Symbol", "Number", "Date", "RegExp", "Error", "Boolean", "Array"]
-	},
+	"requireCapitalizedConstructorsNew": false,
 
@@ -161,0 +159,0 @@ "requireImportAlphabetized": false,

CHANGELOG.md

@@ -0,1 +1,7 @@
+1.12.0 / 2018-05-31
+=================
+  * [New] add `GetIntrinsic` entry point
+  * [New] `ES2015`+: add `ObjectCreate`
+  * [Robustness]: `ES2015+`: ensure `Math.{abs,floor}` and `Function.call` are cached
+
 1.11.0 / 2018-03-21
@@ -2,0 +8,0 @@ =================

es2015.js

@@ -6,9 +6,18 @@ 'use strict';
 
-var toStr = Object.prototype.toString;
-var hasSymbols = typeof Symbol === 'function' && typeof Symbol.iterator === 'symbol';
-var SymbolIterator = hasSymbols ? Symbol.iterator : null;
+var GetIntrinsic = require('./GetIntrinsic');
 
+var $TypeError = GetIntrinsic('%TypeError%');
+var $SyntaxError = GetIntrinsic('%SyntaxError%');
+var $Array = GetIntrinsic('%Array%');
+var $String = GetIntrinsic('%String%');
+var $Object = GetIntrinsic('%Object%');
+var $Number = GetIntrinsic('%Number%');
+var $Symbol = GetIntrinsic('%Symbol%', true);
+var $RegExp = GetIntrinsic('%RegExp%');
+
+var hasSymbols = !!$Symbol;
+
 var $isNaN = require('./helpers/isNaN');
 var $isFinite = require('./helpers/isFinite');
-var MAX_SAFE_INTEGER = Number.MAX_SAFE_INTEGER || Math.pow(2, 53) - 1;
+var MAX_SAFE_INTEGER = $Number.MAX_SAFE_INTEGER || Math.pow(2, 53) - 1;
 
@@ -21,13 +30,24 @@ var assign = require('./helpers/assign');
 var bind = require('function-bind');
-var arraySlice = bind.call(Function.call, Array.prototype.slice);
-var strSlice = bind.call(Function.call, String.prototype.slice);
-var isBinary = bind.call(Function.call, RegExp.prototype.test, /^0b[01]+$/i);
-var isOctal = bind.call(Function.call, RegExp.prototype.test, /^0o[0-7]+$/i);
-var regexExec = bind.call(Function.call, RegExp.prototype.exec);
+var arraySlice = bind.call(Function.call, $Array.prototype.slice);
+var strSlice = bind.call(Function.call, $String.prototype.slice);
+var isBinary = bind.call(Function.call, $RegExp.prototype.test, /^0b[01]+$/i);
+var isOctal = bind.call(Function.call, $RegExp.prototype.test, /^0o[0-7]+$/i);
+var regexExec = bind.call(Function.call, $RegExp.prototype.exec);
 var nonWS = ['\u0085', '\u200b', '\ufffe'].join('');
-var nonWSregex = new RegExp('[' + nonWS + ']', 'g');
-var hasNonWS = bind.call(Function.call, RegExp.prototype.test, nonWSregex);
+var nonWSregex = new $RegExp('[' + nonWS + ']', 'g');
+var hasNonWS = bind.call(Function.call, $RegExp.prototype.test, nonWSregex);
 var invalidHexLiteral = /^[-+]0x[0-9a-f]+$/i;
-var isInvalidHexLiteral = bind.call(Function.call, RegExp.prototype.test, invalidHexLiteral);
+var isInvalidHexLiteral = bind.call(Function.call, $RegExp.prototype.test, invalidHexLiteral);
+var $charCodeAt = bind.call(Function.call, $String.prototype.charCodeAt);
 
+var toStr = bind.call(Function.call, Object.prototype.toString);
+
+var $floor = Math.floor;
+var $abs = Math.abs;
+
+var $ObjectCreate = Object.create;
+var $gOPD = $Object.getOwnPropertyDescriptor;
+
+var $isExtensible = $Object.isExtensible;
+
 // whitespace from: http://es5.github.io/#x15.5.4.20
@@ -41,3 +61,3 @@ // implementation from https://github.com/es-shims/es5-shim/blob/v3.4.0/es5-shim.js#L1304-L1324
 var trimRegex = new RegExp('(^[' + ws + ']+)|([' + ws + ']+$)', 'g');
-var replace = bind.call(Function.call, String.prototype.replace);
+var replace = bind.call(Function.call, $String.prototype.replace);
 var trim = function (value) {
@@ -58,3 +78,3 @@ return replace(value, trimRegex, '');
 		if (!this.IsCallable(F)) {
-			throw new TypeError(F + ' is not a function');
+			throw new $TypeError(F + ' is not a function');
 		}
@@ -70,7 +90,7 @@ return F.apply(V, args);
 
-	// http://www.ecma-international.org/ecma-262/6.0/#sec-tonumber
+	// https://ecma-international.org/ecma-262/6.0/#sec-tonumber
 	ToNumber: function ToNumber(argument) {
-		var value = isPrimitive(argument) ? argument : toPrimitive(argument, Number);
+		var value = isPrimitive(argument) ? argument : toPrimitive(argument, $Number);
 		if (typeof value === 'symbol') {
-			throw new TypeError('Cannot convert a Symbol value to a number');
+			throw new $TypeError('Cannot convert a Symbol value to a number');
 		}
@@ -91,3 +111,3 @@ if (typeof value === 'string') {
 		}
-		return Number(value);
+		return $Number(value);
 	},
@@ -123,3 +143,3 @@
 		if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-		var posInt = sign(number) * Math.floor(Math.abs(number));
+		var posInt = sign(number) * $floor($abs(number));
 		return mod(posInt, 0x100);
@@ -133,3 +153,3 @@ },
 		if (number >= 0xFF) { return 0xFF; }
-		var f = Math.floor(argument);
+		var f = $floor(argument);
 		if (f + 0.5 < number) { return f + 1; }
@@ -144,5 +164,5 @@ if (number < f + 0.5) { return f; }
 		if (typeof argument === 'symbol') {
-			throw new TypeError('Cannot convert a Symbol value to a string');
+			throw new $TypeError('Cannot convert a Symbol value to a string');
 		}
-		return String(argument);
+		return $String(argument);
 	},
@@ -153,3 +173,3 @@
 		this.RequireObjectCoercible(value);
-		return Object(value);
+		return $Object(value);
 	},
@@ -159,3 +179,3 @@
 	ToPropertyKey: function ToPropertyKey(argument) {
-		var key = this.ToPrimitive(argument, String);
+		var key = this.ToPrimitive(argument, $String);
 		return typeof key === 'symbol' ? key : this.ToString(key);
@@ -172,6 +192,6 @@ },
 
-	// http://www.ecma-international.org/ecma-262/6.0/#sec-canonicalnumericindexstring
+	// https://ecma-international.org/ecma-262/6.0/#sec-canonicalnumericindexstring
 	CanonicalNumericIndexString: function CanonicalNumericIndexString(argument) {
-		if (toStr.call(argument) !== '[object String]') {
-			throw new TypeError('must be a string');
+		if (toStr(argument) !== '[object String]') {
+			throw new $TypeError('must be a string');
 		}
@@ -188,4 +208,4 @@ if (argument === '-0') { return -0; }
 	// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isarray
-	IsArray: Array.isArray || function IsArray(argument) {
-		return toStr.call(argument) === '[object Array]';
+	IsArray: $Array.isArray || function IsArray(argument) {
+		return toStr(argument) === '[object Array]';
 	},
@@ -202,9 +222,10 @@
 	// https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isextensible-o
-	IsExtensible: function IsExtensible(obj) {
-		if (!Object.preventExtensions) { return true; }
-		if (isPrimitive(obj)) {
-			return false;
+	IsExtensible: Object.preventExtensions
+		? function IsExtensible(obj) {
+			if (isPrimitive(obj)) {
+				return false;
+			}
+			return $isExtensible(obj);
 		}
-		return Object.isExtensible(obj);
-	},
+		: function isExtensible(obj) { return true; }, // eslint-disable-line no-unused-vars
 
@@ -216,4 +237,4 @@ // https://people.mozilla.org/~jorendorff/es6-draft.html#sec-isinteger
 		}
-		var abs = Math.abs(argument);
-		return Math.floor(abs) === abs;
+		var abs = $abs(argument);
+		return $floor(abs) === abs;
 	},
@@ -226,3 +247,3 @@
 
-	// http://www.ecma-international.org/ecma-262/6.0/#sec-isregexp
+	// https://ecma-international.org/ecma-262/6.0/#sec-isregexp
 	IsRegExp: function IsRegExp(argument) {
@@ -233,3 +254,3 @@ if (!argument || typeof argument !== 'object') {
 		if (hasSymbols) {
-			var isRegExp = argument[Symbol.match];
+			var isRegExp = argument[$Symbol.match];
 			if (typeof isRegExp !== 'undefined') {
@@ -260,3 +281,3 @@ return ES5.ToBoolean(isRegExp);
 		if (!this.IsPropertyKey(P)) {
-			throw new TypeError('Assertion failed: IsPropertyKey(P) is not true');
+			throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true');
 		}
@@ -272,3 +293,3 @@
 	/**
-	 * 7.3.9 - http://www.ecma-international.org/ecma-262/6.0/#sec-getmethod
+	 * 7.3.9 - https://ecma-international.org/ecma-262/6.0/#sec-getmethod
 	 * 1. Assert: IsPropertyKey(P) is true.
@@ -284,3 +305,3 @@ * 2. Let func be GetV(O, P).
 		if (!this.IsPropertyKey(P)) {
-			throw new TypeError('Assertion failed: IsPropertyKey(P) is not true');
+			throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true');
 		}
@@ -298,3 +319,3 @@
 		if (!this.IsCallable(func)) {
-			throw new TypeError(P + 'is not a function');
+			throw new $TypeError(P + 'is not a function');
 		}
@@ -307,3 +328,3 @@
 	/**
-	 * 7.3.1 Get (O, P) - http://www.ecma-international.org/ecma-262/6.0/#sec-get-o-p
+	 * 7.3.1 Get (O, P) - https://ecma-international.org/ecma-262/6.0/#sec-get-o-p
 	 * 1. Assert: Type(O) is Object.
@@ -316,7 +337,7 @@ * 2. Assert: IsPropertyKey(P) is true.
 		if (this.Type(O) !== 'Object') {
-			throw new TypeError('Assertion failed: Type(O) is not Object');
+			throw new $TypeError('Assertion failed: Type(O) is not Object');
 		}
 		// 7.3.1.2
 		if (!this.IsPropertyKey(P)) {
-			throw new TypeError('Assertion failed: IsPropertyKey(P) is not true');
+			throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true');
 		}
@@ -334,6 +355,6 @@ // 7.3.1.3
 
-	// http://www.ecma-international.org/ecma-262/6.0/#sec-speciesconstructor
+	// https://ecma-international.org/ecma-262/6.0/#sec-speciesconstructor
 	SpeciesConstructor: function SpeciesConstructor(O, defaultConstructor) {
 		if (this.Type(O) !== 'Object') {
-			throw new TypeError('Assertion failed: Type(O) is not Object');
+			throw new $TypeError('Assertion failed: Type(O) is not Object');
 		}
@@ -345,5 +366,5 @@ var C = O.constructor;
 		if (this.Type(C) !== 'Object') {
-			throw new TypeError('O.constructor is not an Object');
+			throw new $TypeError('O.constructor is not an Object');
 		}
-		var S = hasSymbols && Symbol.species ? C[Symbol.species] : void 0;
+		var S = hasSymbols && $Symbol.species ? C[$Symbol.species] : void 0;
 		if (S == null) {
@@ -355,9 +376,9 @@ return defaultConstructor;
 		}
-		throw new TypeError('no constructor found');
+		throw new $TypeError('no constructor found');
 	},
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-completepropertydescriptor
+	// https://ecma-international.org/ecma-262/6.0/#sec-completepropertydescriptor
 	CompletePropertyDescriptor: function CompletePropertyDescriptor(Desc) {
 		if (!this.IsPropertyDescriptor(Desc)) {
-			throw new TypeError('Desc must be a Property Descriptor');
+			throw new $TypeError('Desc must be a Property Descriptor');
 		}
@@ -389,12 +410,12 @@
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-set-o-p-v-throw
+	// https://ecma-international.org/ecma-262/6.0/#sec-set-o-p-v-throw
 	Set: function Set(O, P, V, Throw) {
 		if (this.Type(O) !== 'Object') {
-			throw new TypeError('O must be an Object');
+			throw new $TypeError('O must be an Object');
 		}
 		if (!this.IsPropertyKey(P)) {
-			throw new TypeError('P must be a Property Key');
+			throw new $TypeError('P must be a Property Key');
 		}
 		if (this.Type(Throw) !== 'Boolean') {
-			throw new TypeError('Throw must be a Boolean');
+			throw new $TypeError('Throw must be a Boolean');
 		}
@@ -413,9 +434,9 @@ if (Throw) {
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-hasownproperty
+	// https://ecma-international.org/ecma-262/6.0/#sec-hasownproperty
 	HasOwnProperty: function HasOwnProperty(O, P) {
 		if (this.Type(O) !== 'Object') {
-			throw new TypeError('O must be an Object');
+			throw new $TypeError('O must be an Object');
 		}
 		if (!this.IsPropertyKey(P)) {
-			throw new TypeError('P must be a Property Key');
+			throw new $TypeError('P must be a Property Key');
 		}
@@ -425,9 +446,9 @@ return has(O, P);
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-hasproperty
+	// https://ecma-international.org/ecma-262/6.0/#sec-hasproperty
 	HasProperty: function HasProperty(O, P) {
 		if (this.Type(O) !== 'Object') {
-			throw new TypeError('O must be an Object');
+			throw new $TypeError('O must be an Object');
 		}
 		if (!this.IsPropertyKey(P)) {
-			throw new TypeError('P must be a Property Key');
+			throw new $TypeError('P must be a Property Key');
 		}
@@ -437,3 +458,3 @@ return P in O;
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-isconcatspreadable
+	// https://ecma-international.org/ecma-262/6.0/#sec-isconcatspreadable
 	IsConcatSpreadable: function IsConcatSpreadable(O) {
@@ -443,3 +464,3 @@ if (this.Type(O) !== 'Object') {
 		}
-		if (hasSymbols && typeof Symbol.isConcatSpreadable === 'symbol') {
+		if (hasSymbols && typeof $Symbol.isConcatSpreadable === 'symbol') {
 			var spreadable = this.Get(O, Symbol.isConcatSpreadable);
@@ -453,6 +474,6 @@ if (typeof spreadable !== 'undefined') {
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-invoke
+	// https://ecma-international.org/ecma-262/6.0/#sec-invoke
 	Invoke: function Invoke(O, P) {
 		if (!this.IsPropertyKey(P)) {
-			throw new TypeError('P must be a Property Key');
+			throw new $TypeError('P must be a Property Key');
 		}
@@ -464,3 +485,3 @@ var argumentsList = arraySlice(arguments, 2);
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-getiterator
+	// https://ecma-international.org/ecma-262/6.0/#sec-getiterator
 	GetIterator: function GetIterator(obj, method) {
@@ -473,7 +494,7 @@ if (!hasSymbols) {
 		if (arguments.length < 2) {
-			actualMethod = this.GetMethod(obj, SymbolIterator);
+			actualMethod = this.GetMethod(obj, $Symbol.iterator);
 		}
 		var iterator = this.Call(actualMethod, obj);
 		if (this.Type(iterator) !== 'Object') {
-			throw new TypeError('iterator must return an object');
+			throw new $TypeError('iterator must return an object');
 		}
@@ -484,7 +505,7 @@
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-iteratornext
+	// https://ecma-international.org/ecma-262/6.0/#sec-iteratornext
 	IteratorNext: function IteratorNext(iterator, value) {
 		var result = this.Invoke(iterator, 'next', arguments.length < 2 ? [] : [value]);
 		if (this.Type(result) !== 'Object') {
-			throw new TypeError('iterator next must return an object');
+			throw new $TypeError('iterator next must return an object');
 		}
@@ -494,6 +515,6 @@ return result;
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-iteratorcomplete
+	// https://ecma-international.org/ecma-262/6.0/#sec-iteratorcomplete
 	IteratorComplete: function IteratorComplete(iterResult) {
 		if (this.Type(iterResult) !== 'Object') {
-			throw new TypeError('Assertion failed: Type(iterResult) is not Object');
+			throw new $TypeError('Assertion failed: Type(iterResult) is not Object');
 		}
@@ -503,6 +524,6 @@ return this.ToBoolean(this.Get(iterResult, 'done'));
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-iteratorvalue
+	// https://ecma-international.org/ecma-262/6.0/#sec-iteratorvalue
 	IteratorValue: function IteratorValue(iterResult) {
 		if (this.Type(iterResult) !== 'Object') {
-			throw new TypeError('Assertion failed: Type(iterResult) is not Object');
+			throw new $TypeError('Assertion failed: Type(iterResult) is not Object');
 		}
@@ -512,3 +533,3 @@ return this.Get(iterResult, 'value');
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-iteratorstep
+	// https://ecma-international.org/ecma-262/6.0/#sec-iteratorstep
 	IteratorStep: function IteratorStep(iterator) {
@@ -520,9 +541,9 @@ var result = this.IteratorNext(iterator);
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-iteratorclose
+	// https://ecma-international.org/ecma-262/6.0/#sec-iteratorclose
 	IteratorClose: function IteratorClose(iterator, completion) {
 		if (this.Type(iterator) !== 'Object') {
-			throw new TypeError('Assertion failed: Type(iterator) is not Object');
+			throw new $TypeError('Assertion failed: Type(iterator) is not Object');
 		}
 		if (!this.IsCallable(completion)) {
-			throw new TypeError('Assertion failed: completion is not a thunk for a Completion Record');
+			throw new $TypeError('Assertion failed: completion is not a thunk for a Completion Record');
 		}
@@ -554,3 +575,3 @@ var completionThunk = completion;
 		if (this.Type(innerResult) !== 'Object') {
-			throw new TypeError('iterator .return must return an object');
+			throw new $TypeError('iterator .return must return an object');
 		}
@@ -561,6 +582,6 @@
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-createiterresultobject
+	// https://ecma-international.org/ecma-262/6.0/#sec-createiterresultobject
 	CreateIterResultObject: function CreateIterResultObject(value, done) {
 		if (this.Type(done) !== 'Boolean') {
-			throw new TypeError('Assertion failed: Type(done) is not Boolean');
+			throw new $TypeError('Assertion failed: Type(done) is not Boolean');
 		}
@@ -573,9 +594,9 @@ return {
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-regexpexec
+	// https://ecma-international.org/ecma-262/6.0/#sec-regexpexec
 	RegExpExec: function RegExpExec(R, S) {
 		if (this.Type(R) !== 'Object') {
-			throw new TypeError('R must be an Object');
+			throw new $TypeError('R must be an Object');
 		}
 		if (this.Type(S) !== 'String') {
-			throw new TypeError('S must be a String');
+			throw new $TypeError('S must be a String');
 		}
@@ -588,3 +609,3 @@ var exec = this.Get(R, 'exec');
 			}
-			throw new TypeError('"exec" method must return `null` or an Object');
+			throw new $TypeError('"exec" method must return `null` or an Object');
 		}
@@ -594,6 +615,6 @@ return regexExec(R, S);
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-arrayspeciescreate
+	// https://ecma-international.org/ecma-262/6.0/#sec-arrayspeciescreate
 	ArraySpeciesCreate: function ArraySpeciesCreate(originalArray, length) {
 		if (!this.IsInteger(length) || length < 0) {
-			throw new TypeError('Assertion failed: length must be an integer >= 0');
+			throw new $TypeError('Assertion failed: length must be an integer >= 0');
 		}
@@ -610,4 +631,4 @@ var len = length === 0 ? 0 : length;
 			// }
-			if (this.Type(C) === 'Object' && hasSymbols && Symbol.species) {
-				C = this.Get(C, Symbol.species);
+			if (this.Type(C) === 'Object' && hasSymbols && $Symbol.species) {
+				C = this.Get(C, $Symbol.species);
 				if (C === null) {
@@ -619,6 +640,6 @@ C = void 0;
 		if (typeof C === 'undefined') {
-			return Array(len);
+			return $Array(len);
 		}
 		if (!this.IsConstructor(C)) {
-			throw new TypeError('C must be a constructor');
+			throw new $TypeError('C must be a constructor');
 		}
@@ -630,9 +651,9 @@ return new C(len); // this.Construct(C, len);
 		if (this.Type(O) !== 'Object') {
-			throw new TypeError('Assertion failed: Type(O) is not Object');
+			throw new $TypeError('Assertion failed: Type(O) is not Object');
 		}
 		if (!this.IsPropertyKey(P)) {
-			throw new TypeError('Assertion failed: IsPropertyKey(P) is not true');
+			throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true');
 		}
-		var oldDesc = Object.getOwnPropertyDescriptor(O, P);
-		var extensible = oldDesc || (typeof Object.isExtensible !== 'function' || Object.isExtensible(O));
+		var oldDesc = $gOPD(O, P);
+		var extensible = oldDesc || (typeof $isExtensible !== 'function' || $isExtensible(O));
 		var immutable = oldDesc && (!oldDesc.writable || !oldDesc.configurable);
@@ -652,13 +673,13 @@ if (immutable || !extensible) {
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-createdatapropertyorthrow
+	// https://ecma-international.org/ecma-262/6.0/#sec-createdatapropertyorthrow
 	CreateDataPropertyOrThrow: function CreateDataPropertyOrThrow(O, P, V) {
 		if (this.Type(O) !== 'Object') {
-			throw new TypeError('Assertion failed: Type(O) is not Object');
+			throw new $TypeError('Assertion failed: Type(O) is not Object');
 		}
 		if (!this.IsPropertyKey(P)) {
-			throw new TypeError('Assertion failed: IsPropertyKey(P) is not true');
+			throw new $TypeError('Assertion failed: IsPropertyKey(P) is not true');
 		}
 		var success = this.CreateDataProperty(O, P, V);
 		if (!success) {
-			throw new TypeError('unable to create data property');
+			throw new $TypeError('unable to create data property');
 		}
@@ -668,15 +689,29 @@ return success;
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-advancestringindex
+	// https://www.ecma-international.org/ecma-262/6.0/#sec-objectcreate
+	ObjectCreate: function ObjectCreate(proto, internalSlotsList) {
+		if (proto !== null && this.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 $SyntaxError('es-abstract does not yet support internal slots');
+		}
+
+		if (proto === null && !$ObjectCreate) {
+			throw new $SyntaxError('native Object.create support is required to create null objects');
+		}
+
+		return $ObjectCreate(proto);
+	},
+
+	// https://ecma-international.org/ecma-262/6.0/#sec-advancestringindex
 	AdvanceStringIndex: function AdvanceStringIndex(S, index, unicode) {
 		if (this.Type(S) !== 'String') {
-			throw new TypeError('Assertion failed: Type(S) is not String');
+			throw new $TypeError('S must be a String');
 		}
-		if (!this.IsInteger(index)) {
-			throw new TypeError('Assertion failed: length must be an integer >= 0 and <= (2**53 - 1)');
+		if (!this.IsInteger(index) || index < 0 || index > MAX_SAFE_INTEGER) {
+			throw new $TypeError('Assertion failed: length must be an integer >= 0 and <= 2**53');
 		}
-		if (index < 0 || index > MAX_SAFE_INTEGER) {
-			throw new RangeError('Assertion failed: length must be an integer >= 0 and <= (2**53 - 1)');
-		}
 		if (this.Type(unicode) !== 'Boolean') {
-			throw new TypeError('Assertion failed: Type(unicode) is not Boolean');
+			throw new $TypeError('Assertion failed: unicode must be a Boolean');
 		}
@@ -690,10 +725,13 @@ if (!unicode) {
 		}
-		var first = S.charCodeAt(index);
+
+		var first = $charCodeAt(S, index);
 		if (first < 0xD800 || first > 0xDBFF) {
 			return index + 1;
 		}
-		var second = S.charCodeAt(index + 1);
+
+		var second = $charCodeAt(S, index + 1);
 		if (second < 0xDC00 || second > 0xDFFF) {
 			return index + 1;
 		}
+
 		return index + 2;
@@ -700,0 +738,0 @@ }

es5.js

 'use strict';
 
+var GetIntrinsic = require('./GetIntrinsic');
+
+var $Object = GetIntrinsic('%Object%');
+var $TypeError = GetIntrinsic('%TypeError%');
+var $String = GetIntrinsic('%String%');
+
 var $isNaN = require('./helpers/isNaN');
@@ -22,3 +28,3 @@ var $isFinite = require('./helpers/isFinite');
 	ToNumber: function ToNumber(value) {
-		return Number(value);
+		return +value; // eslint-disable-line no-implicit-coercion
 	},
@@ -44,7 +50,7 @@ ToInteger: function ToInteger(value) {
 	ToString: function ToString(value) {
-		return String(value);
+		return $String(value);
 	},
 	ToObject: function ToObject(value) {
 		this.CheckObjectCoercible(value);
-		return Object(value);
+		return $Object(value);
 	},
@@ -54,3 +60,3 @@ CheckObjectCoercible: function CheckObjectCoercible(value, optMessage) {
 		if (value == null) {
-			throw new TypeError(optMessage || 'Cannot call method on ' + value);
+			throw new $TypeError(optMessage || 'Cannot call method on ' + value);
 		}
@@ -68,3 +74,3 @@ return value;
 
-	// http://www.ecma-international.org/ecma-262/5.1/#sec-8
+	// https://www.ecma-international.org/ecma-262/5.1/#sec-8
 	Type: function Type(x) {
@@ -91,3 +97,3 @@ if (x === null) {
 
-	// http://ecma-international.org/ecma-262/6.0/#sec-property-descriptor-specification-type
+	// https://ecma-international.org/ecma-262/6.0/#sec-property-descriptor-specification-type
 	IsPropertyDescriptor: function IsPropertyDescriptor(Desc) {
@@ -115,3 +121,3 @@ if (this.Type(Desc) !== 'Object') {
 		if (isData && IsAccessor) {
-			throw new TypeError('Property Descriptors may not be both accessor and data descriptors');
+			throw new $TypeError('Property Descriptors may not be both accessor and data descriptors');
 		}
@@ -121,3 +127,3 @@ return true;
 
-	// http://ecma-international.org/ecma-262/5.1/#sec-8.10.1
+	// https://ecma-international.org/ecma-262/5.1/#sec-8.10.1
 	IsAccessorDescriptor: function IsAccessorDescriptor(Desc) {
@@ -129,3 +135,3 @@ if (typeof Desc === 'undefined') {
 		if (!this.IsPropertyDescriptor(Desc)) {
-			throw new TypeError('Desc must be a Property Descriptor');
+			throw new $TypeError('Desc must be a Property Descriptor');
 		}
@@ -140,3 +146,3 @@
 
-	// http://ecma-international.org/ecma-262/5.1/#sec-8.10.2
+	// https://ecma-international.org/ecma-262/5.1/#sec-8.10.2
 	IsDataDescriptor: function IsDataDescriptor(Desc) {
@@ -148,3 +154,3 @@ if (typeof Desc === 'undefined') {
 		if (!this.IsPropertyDescriptor(Desc)) {
-			throw new TypeError('Desc must be a Property Descriptor');
+			throw new $TypeError('Desc must be a Property Descriptor');
 		}
@@ -159,3 +165,3 @@
 
-	// http://ecma-international.org/ecma-262/5.1/#sec-8.10.3
+	// https://ecma-international.org/ecma-262/5.1/#sec-8.10.3
 	IsGenericDescriptor: function IsGenericDescriptor(Desc) {
@@ -167,3 +173,3 @@ if (typeof Desc === 'undefined') {
 		if (!this.IsPropertyDescriptor(Desc)) {
-			throw new TypeError('Desc must be a Property Descriptor');
+			throw new $TypeError('Desc must be a Property Descriptor');
 		}
@@ -178,3 +184,3 @@
 
-	// http://ecma-international.org/ecma-262/5.1/#sec-8.10.4
+	// https://ecma-international.org/ecma-262/5.1/#sec-8.10.4
 	FromPropertyDescriptor: function FromPropertyDescriptor(Desc) {
@@ -186,3 +192,3 @@ if (typeof Desc === 'undefined') {
 		if (!this.IsPropertyDescriptor(Desc)) {
-			throw new TypeError('Desc must be a Property Descriptor');
+			throw new $TypeError('Desc must be a Property Descriptor');
 		}
@@ -205,10 +211,10 @@
 		} else {
-			throw new TypeError('FromPropertyDescriptor must be called with a fully populated Property Descriptor');
+			throw new $TypeError('FromPropertyDescriptor must be called with a fully populated Property Descriptor');
 		}
 	},
 
-	// http://ecma-international.org/ecma-262/5.1/#sec-8.10.5
+	// https://ecma-international.org/ecma-262/5.1/#sec-8.10.5
 	ToPropertyDescriptor: function ToPropertyDescriptor(Obj) {
 		if (this.Type(Obj) !== 'Object') {
-			throw new TypeError('ToPropertyDescriptor requires an object');
+			throw new $TypeError('ToPropertyDescriptor requires an object');
 		}
@@ -239,3 +245,3 @@
 			if (typeof setter !== 'undefined' && !this.IsCallable(setter)) {
-				throw new TypeError('setter must be a function');
+				throw new $TypeError('setter must be a function');
 			}
@@ -246,3 +252,3 @@ desc['[[Set]]'] = setter;
 		if ((has(desc, '[[Get]]') || has(desc, '[[Set]]')) && (has(desc, '[[Value]]') || has(desc, '[[Writable]]'))) {
-			throw new TypeError('Invalid property descriptor. Cannot both specify accessors and a value or writable attribute');
+			throw new $TypeError('Invalid property descriptor. Cannot both specify accessors and a value or writable attribute');
 		}
@@ -249,0 +255,0 @@ return desc;

helpers/assign.js

@@ -1,8 +0,13 @@
-var has = Object.prototype.hasOwnProperty;
+var bind = require('function-bind');
+var has = bind.call(Function.call, Object.prototype.hasOwnProperty);
+
+var $assign = Object.assign;
+
 module.exports = function assign(target, source) {
-	if (Object.assign) {
-		return Object.assign(target, source);
+	if ($assign) {
+		return $assign(target, source);
 	}
+
 	for (var key in source) {
-		if (has.call(source, key)) {
+		if (has(source, key)) {
 			target[key] = source[key];
@@ -9,0 +14,0 @@ }

operations/2015.js

 'use strict';
 
 module.exports = {
-	IsPropertyDescriptor: 'http://ecma-international.org/ecma-262/6.0/#sec-property-descriptor-specification-type',
-	IsAccessorDescriptor: 'http://ecma-international.org/ecma-262/6.0/#sec-isaccessordescriptor',
-	IsDataDescriptor: 'http://ecma-international.org/ecma-262/6.0/#sec-isdatadescriptor',
-	IsGenericDescriptor: 'http://ecma-international.org/ecma-262/6.0/#sec-isgenericdescriptor',
-	FromPropertyDescriptor: 'http://ecma-international.org/ecma-262/6.0/#sec-frompropertydescriptor',
-	ToPropertyDescriptor: 'http://ecma-international.org/ecma-262/6.0/#sec-topropertydescriptor',
-	CompletePropertyDescriptor: 'http://ecma-international.org/ecma-262/6.0/#sec-completepropertydescriptor',
-	ToPrimitive: 'http://ecma-international.org/ecma-262/6.0/#sec-toprimitive',
-	ToBoolean: 'http://ecma-international.org/ecma-262/6.0/#sec-toboolean',
-	ToNumber: 'http://ecma-international.org/ecma-262/6.0/#sec-tonumber',
-	ToInteger: 'http://ecma-international.org/ecma-262/6.0/#sec-tointeger',
-	ToInt32: 'http://ecma-international.org/ecma-262/6.0/#sec-toint32',
-	ToUint32: 'http://ecma-international.org/ecma-262/6.0/#sec-touint32',
-	ToInt16: 'http://ecma-international.org/ecma-262/6.0/#sec-toint16',
-	ToUint16: 'http://ecma-international.org/ecma-262/6.0/#sec-touint16',
-	ToInt8: 'http://ecma-international.org/ecma-262/6.0/#sec-toint8',
-	ToUint8: 'http://ecma-international.org/ecma-262/6.0/#sec-touint8',
-	ToUint8Clamp: 'http://ecma-international.org/ecma-262/6.0/#sec-touint8clamp',
-	ToString: 'http://ecma-international.org/ecma-262/6.0/#sec-tostring',
-	ToObject: 'http://ecma-international.org/ecma-262/6.0/#sec-toobject',
-	ToPropertyKey: 'http://ecma-international.org/ecma-262/6.0/#sec-topropertykey',
-	ToLength: 'http://ecma-international.org/ecma-262/6.0/#sec-tolength',
-	CanonicalNumericIndexString: 'http://ecma-international.org/ecma-262/6.0/#sec-canonicalnumericindexstring',
-	RequireObjectCoercible: 'http://ecma-international.org/ecma-262/6.0/#sec-requireobjectcoercible',
-	IsArray: 'http://ecma-international.org/ecma-262/6.0/#sec-isarray',
-	IsCallable: 'http://ecma-international.org/ecma-262/6.0/#sec-iscallable',
-	IsConstructor: 'http://ecma-international.org/ecma-262/6.0/#sec-isconstructor',
-	IsExtensible: 'http://ecma-international.org/ecma-262/6.0/#sec-isextensible-o',
-	IsInteger: 'http://ecma-international.org/ecma-262/6.0/#sec-isinteger',
-	IsPropertyKey: 'http://ecma-international.org/ecma-262/6.0/#sec-ispropertykey',
-	IsRegExp: 'http://ecma-international.org/ecma-262/6.0/#sec-isregexp',
-	SameValue: 'http://ecma-international.org/ecma-262/6.0/#sec-samevalue',
-	SameValueZero: 'http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero',
-	Get: 'http://ecma-international.org/ecma-262/6.0/#sec-get-o-p',
-	GetV: 'http://ecma-international.org/ecma-262/6.0/#sec-getv',
-	Set: 'http://ecma-international.org/ecma-262/6.0/#sec-set-o-p-v-throw',
-	CreateDataProperty: 'http://ecma-international.org/ecma-262/6.0/#sec-createdataproperty',
-	CreateMethodProperty: 'http://ecma-international.org/ecma-262/6.0/#sec-createmethodproperty',
-	CreateDataPropertyOrThrow: 'http://ecma-international.org/ecma-262/6.0/#sec-createdatapropertyorthrow',
-	DefinePropertyOrThrow: 'http://ecma-international.org/ecma-262/6.0/#sec-definepropertyorthrow',
-	DeletePropertyOrThrow: 'http://ecma-international.org/ecma-262/6.0/#sec-deletepropertyorthrow',
-	GetMethod: 'http://ecma-international.org/ecma-262/6.0/#sec-getmethod',
-	HasProperty: 'http://ecma-international.org/ecma-262/6.0/#sec-hasproperty',
-	HasOwnProperty: 'http://ecma-international.org/ecma-262/6.0/#sec-hasownproperty',
-	Call: 'http://ecma-international.org/ecma-262/6.0/#sec-call',
-	Construct: 'http://ecma-international.org/ecma-262/6.0/#sec-construct',
-	SetIntegrityLevel: 'http://ecma-international.org/ecma-262/6.0/#sec-setintegritylevel',
-	TestIntegrityLevel: 'http://ecma-international.org/ecma-262/6.0/#sec-testintegritylevel',
-	CreateArrayFromList: 'http://ecma-international.org/ecma-262/6.0/#sec-createarrayfromlist',
-	CreateListFromArrayLike: 'http://ecma-international.org/ecma-262/6.0/#sec-createlistfromarraylike',
-	Invoke: 'http://ecma-international.org/ecma-262/6.0/#sec-invoke',
-	OrdinaryHasInstance: 'http://ecma-international.org/ecma-262/6.0/#sec-ordinaryhasinstance',
-	SpeciesConstructor: 'http://ecma-international.org/ecma-262/6.0/#sec-speciesconstructor',
-	EnumerableOwnNames: 'http://ecma-international.org/ecma-262/6.0/#sec-enumerableownnames',
-	GetIterator: 'http://ecma-international.org/ecma-262/6.0/#sec-getiterator',
-	IteratorNext: 'http://ecma-international.org/ecma-262/6.0/#sec-iteratornext',
-	IteratorComplete: 'http://ecma-international.org/ecma-262/6.0/#sec-iteratorcomplete',
-	IteratorValue: 'http://ecma-international.org/ecma-262/6.0/#sec-iteratorvalue',
-	IteratorStep: 'http://ecma-international.org/ecma-262/6.0/#sec-iteratorstep',
-	IteratorClose: 'http://ecma-international.org/ecma-262/6.0/#sec-iteratorclose',
-	CreateIterResultObject: 'http://ecma-international.org/ecma-262/6.0/#sec-createiterresultobject',
-	CreateListIterator: 'http://ecma-international.org/ecma-262/6.0/#sec-createlistiterator',
-	Type: 'http://ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types',
-	thisNumberValue: 'http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-number-prototype-object',
-	thisTimeValue: 'http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-date-prototype-object',
-	thisStringValue: 'http://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-string-prototype-object',
-	RegExpExec: 'http://ecma-international.org/ecma-262/6.0/#sec-regexpexec',
-	RegExpBuiltinExec: 'http://ecma-international.org/ecma-262/6.0/#sec-regexpbuiltinexec',
-	IsConcatSpreadable: 'http://ecma-international.org/ecma-262/6.0/#sec-isconcatspreadable',
-	IsPromise: 'http://ecma-international.org/ecma-262/6.0/#sec-ispromise',
-	ArraySpeciesCreate: 'http://ecma-international.org/ecma-262/6.0/#sec-arrayspeciescreate',
-	AdvanceStringIndex: 'http://ecma-international.org/ecma-262/6.0/#sec-advancestringindex'
+	IsPropertyDescriptor: 'https://ecma-international.org/ecma-262/6.0/#sec-property-descriptor-specification-type',
+	IsAccessorDescriptor: 'https://ecma-international.org/ecma-262/6.0/#sec-isaccessordescriptor',
+	IsDataDescriptor: 'https://ecma-international.org/ecma-262/6.0/#sec-isdatadescriptor',
+	IsGenericDescriptor: 'https://ecma-international.org/ecma-262/6.0/#sec-isgenericdescriptor',
+	FromPropertyDescriptor: 'https://ecma-international.org/ecma-262/6.0/#sec-frompropertydescriptor',
+	ToPropertyDescriptor: 'https://ecma-international.org/ecma-262/6.0/#sec-topropertydescriptor',
+	CompletePropertyDescriptor: 'https://ecma-international.org/ecma-262/6.0/#sec-completepropertydescriptor',
+	ToPrimitive: 'https://ecma-international.org/ecma-262/6.0/#sec-toprimitive',
+	ToBoolean: 'https://ecma-international.org/ecma-262/6.0/#sec-toboolean',
+	ToNumber: 'https://ecma-international.org/ecma-262/6.0/#sec-tonumber',
+	ToInteger: 'https://ecma-international.org/ecma-262/6.0/#sec-tointeger',
+	ToInt32: 'https://ecma-international.org/ecma-262/6.0/#sec-toint32',
+	ToUint32: 'https://ecma-international.org/ecma-262/6.0/#sec-touint32',
+	ToInt16: 'https://ecma-international.org/ecma-262/6.0/#sec-toint16',
+	ToUint16: 'https://ecma-international.org/ecma-262/6.0/#sec-touint16',
+	ToInt8: 'https://ecma-international.org/ecma-262/6.0/#sec-toint8',
+	ToUint8: 'https://ecma-international.org/ecma-262/6.0/#sec-touint8',
+	ToUint8Clamp: 'https://ecma-international.org/ecma-262/6.0/#sec-touint8clamp',
+	ToString: 'https://ecma-international.org/ecma-262/6.0/#sec-tostring',
+	ToObject: 'https://ecma-international.org/ecma-262/6.0/#sec-toobject',
+	ToPropertyKey: 'https://ecma-international.org/ecma-262/6.0/#sec-topropertykey',
+	ToLength: 'https://ecma-international.org/ecma-262/6.0/#sec-tolength',
+	CanonicalNumericIndexString: 'https://ecma-international.org/ecma-262/6.0/#sec-canonicalnumericindexstring',
+	RequireObjectCoercible: 'https://ecma-international.org/ecma-262/6.0/#sec-requireobjectcoercible',
+	IsArray: 'https://ecma-international.org/ecma-262/6.0/#sec-isarray',
+	IsCallable: 'https://ecma-international.org/ecma-262/6.0/#sec-iscallable',
+	IsConstructor: 'https://ecma-international.org/ecma-262/6.0/#sec-isconstructor',
+	IsExtensible: 'https://ecma-international.org/ecma-262/6.0/#sec-isextensible-o',
+	IsInteger: 'https://ecma-international.org/ecma-262/6.0/#sec-isinteger',
+	IsPropertyKey: 'https://ecma-international.org/ecma-262/6.0/#sec-ispropertykey',
+	IsRegExp: 'https://ecma-international.org/ecma-262/6.0/#sec-isregexp',
+	SameValue: 'https://ecma-international.org/ecma-262/6.0/#sec-samevalue',
+	SameValueZero: 'https://ecma-international.org/ecma-262/6.0/#sec-samevaluezero',
+	Get: 'https://ecma-international.org/ecma-262/6.0/#sec-get-o-p',
+	GetV: 'https://ecma-international.org/ecma-262/6.0/#sec-getv',
+	Set: 'https://ecma-international.org/ecma-262/6.0/#sec-set-o-p-v-throw',
+	CreateDataProperty: 'https://ecma-international.org/ecma-262/6.0/#sec-createdataproperty',
+	CreateMethodProperty: 'https://ecma-international.org/ecma-262/6.0/#sec-createmethodproperty',
+	CreateDataPropertyOrThrow: 'https://ecma-international.org/ecma-262/6.0/#sec-createdatapropertyorthrow',
+	DefinePropertyOrThrow: 'https://ecma-international.org/ecma-262/6.0/#sec-definepropertyorthrow',
+	DeletePropertyOrThrow: 'https://ecma-international.org/ecma-262/6.0/#sec-deletepropertyorthrow',
+	GetMethod: 'https://ecma-international.org/ecma-262/6.0/#sec-getmethod',
+	HasProperty: 'https://ecma-international.org/ecma-262/6.0/#sec-hasproperty',
+	HasOwnProperty: 'https://ecma-international.org/ecma-262/6.0/#sec-hasownproperty',
+	Call: 'https://ecma-international.org/ecma-262/6.0/#sec-call',
+	Construct: 'https://ecma-international.org/ecma-262/6.0/#sec-construct',
+	SetIntegrityLevel: 'https://ecma-international.org/ecma-262/6.0/#sec-setintegritylevel',
+	TestIntegrityLevel: 'https://ecma-international.org/ecma-262/6.0/#sec-testintegritylevel',
+	CreateArrayFromList: 'https://ecma-international.org/ecma-262/6.0/#sec-createarrayfromlist',
+	CreateListFromArrayLike: 'https://ecma-international.org/ecma-262/6.0/#sec-createlistfromarraylike',
+	Invoke: 'https://ecma-international.org/ecma-262/6.0/#sec-invoke',
+	OrdinaryHasInstance: 'https://ecma-international.org/ecma-262/6.0/#sec-ordinaryhasinstance',
+	SpeciesConstructor: 'https://ecma-international.org/ecma-262/6.0/#sec-speciesconstructor',
+	EnumerableOwnNames: 'https://ecma-international.org/ecma-262/6.0/#sec-enumerableownnames',
+	GetIterator: 'https://ecma-international.org/ecma-262/6.0/#sec-getiterator',
+	IteratorNext: 'https://ecma-international.org/ecma-262/6.0/#sec-iteratornext',
+	IteratorComplete: 'https://ecma-international.org/ecma-262/6.0/#sec-iteratorcomplete',
+	IteratorValue: 'https://ecma-international.org/ecma-262/6.0/#sec-iteratorvalue',
+	IteratorStep: 'https://ecma-international.org/ecma-262/6.0/#sec-iteratorstep',
+	IteratorClose: 'https://ecma-international.org/ecma-262/6.0/#sec-iteratorclose',
+	CreateIterResultObject: 'https://ecma-international.org/ecma-262/6.0/#sec-createiterresultobject',
+	CreateListIterator: 'https://ecma-international.org/ecma-262/6.0/#sec-createlistiterator',
+	Type: 'https://ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types',
+	thisNumberValue: 'https://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-number-prototype-object',
+	thisTimeValue: 'https://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-date-prototype-object',
+	thisStringValue: 'https://ecma-international.org/ecma-262/6.0/#sec-properties-of-the-string-prototype-object',
+	RegExpExec: 'https://ecma-international.org/ecma-262/6.0/#sec-regexpexec',
+	RegExpBuiltinExec: 'https://ecma-international.org/ecma-262/6.0/#sec-regexpbuiltinexec',
+	IsConcatSpreadable: 'https://ecma-international.org/ecma-262/6.0/#sec-isconcatspreadable',
+	IsPromise: 'https://ecma-international.org/ecma-262/6.0/#sec-ispromise',
+	ArraySpeciesCreate: 'https://ecma-international.org/ecma-262/6.0/#sec-arrayspeciescreate',
+	ObjectCreate: 'https://ecma-international.org/ecma-262/6.0/#sec-objectcreate',
+	AdvanceStringIndex: 'https://ecma-international.org/ecma-262/6.0/#sec-advancestringindex',
+	NormalCompletion: 'https://ecma-international.org/ecma-262/6.0/#sec-normalcompletion'
 };

operations/2016.js

 'use strict';
 
 module.exports = {
-	IsPropertyDescriptor: 'http://ecma-international.org/ecma-262/7.0/#sec-property-descriptor-specification-type',
-	IsAccessorDescriptor: 'http://ecma-international.org/ecma-262/7.0/#sec-isaccessordescriptor',
-	IsDataDescriptor: 'http://ecma-international.org/ecma-262/7.0/#sec-isdatadescriptor',
-	IsGenericDescriptor: 'http://ecma-international.org/ecma-262/7.0/#sec-isgenericdescriptor',
-	FromPropertyDescriptor: 'http://ecma-international.org/ecma-262/7.0/#sec-frompropertydescriptor',
-	ToPropertyDescriptor: 'http://ecma-international.org/ecma-262/7.0/#sec-topropertydescriptor',
-	CompletePropertyDescriptor: 'http://ecma-international.org/ecma-262/7.0/#sec-completepropertydescriptor',
-	ToPrimitive: 'http://ecma-international.org/ecma-262/7.0/#sec-toprimitive',
-	ToBoolean: 'http://ecma-international.org/ecma-262/7.0/#sec-toboolean',
-	ToNumber: 'http://ecma-international.org/ecma-262/7.0/#sec-tonumber',
-	ToInteger: 'http://ecma-international.org/ecma-262/7.0/#sec-tointeger',
-	ToInt32: 'http://ecma-international.org/ecma-262/7.0/#sec-toint32',
-	ToUint32: 'http://ecma-international.org/ecma-262/7.0/#sec-touint32',
-	ToInt16: 'http://ecma-international.org/ecma-262/7.0/#sec-toint16',
-	ToUint16: 'http://ecma-international.org/ecma-262/7.0/#sec-touint16',
-	ToInt8: 'http://ecma-international.org/ecma-262/7.0/#sec-toint8',
-	ToUint8: 'http://ecma-international.org/ecma-262/7.0/#sec-touint8',
-	ToUint8Clamp: 'http://ecma-international.org/ecma-262/7.0/#sec-touint8clamp',
-	ToString: 'http://ecma-international.org/ecma-262/7.0/#sec-tostring',
-	ToObject: 'http://ecma-international.org/ecma-262/7.0/#sec-toobject',
-	ToPropertyKey: 'http://ecma-international.org/ecma-262/7.0/#sec-topropertykey',
-	ToLength: 'http://ecma-international.org/ecma-262/7.0/#sec-tolength',
-	CanonicalNumericIndexString: 'http://ecma-international.org/ecma-262/7.0/#sec-canonicalnumericindexstring',
-	RequireObjectCoercible: 'http://ecma-international.org/ecma-262/7.0/#sec-requireobjectcoercible',
-	IsArray: 'http://ecma-international.org/ecma-262/7.0/#sec-isarray',
-	IsCallable: 'http://ecma-international.org/ecma-262/7.0/#sec-iscallable',
-	IsConstructor: 'http://ecma-international.org/ecma-262/7.0/#sec-isconstructor',
-	IsExtensible: 'http://ecma-international.org/ecma-262/7.0/#sec-isextensible-o',
-	IsInteger: 'http://ecma-international.org/ecma-262/7.0/#sec-isinteger',
-	IsPropertyKey: 'http://ecma-international.org/ecma-262/7.0/#sec-ispropertykey',
-	IsRegExp: 'http://ecma-international.org/ecma-262/7.0/#sec-isregexp',
-	SameValue: 'http://ecma-international.org/ecma-262/7.0/#sec-samevalue',
-	SameValueZero: 'http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero',
-	SameValueNonNumber: 'http://ecma-international.org/ecma-262/7.0/#sec-samevaluenonnumber',
-	Get: 'http://ecma-international.org/ecma-262/7.0/#sec-get-o-p',
-	GetV: 'http://ecma-international.org/ecma-262/7.0/#sec-getv',
-	Set: 'http://ecma-international.org/ecma-262/7.0/#sec-set-o-p-v-throw',
-	CreateDataProperty: 'http://ecma-international.org/ecma-262/7.0/#sec-createdataproperty',
-	CreateMethodProperty: 'http://ecma-international.org/ecma-262/7.0/#sec-createmethodproperty',
-	CreateDataPropertyOrThrow: 'http://ecma-international.org/ecma-262/7.0/#sec-createdatapropertyorthrow',
-	DefinePropertyOrThrow: 'http://ecma-international.org/ecma-262/7.0/#sec-definepropertyorthrow',
-	DeletePropertyOrThrow: 'http://ecma-international.org/ecma-262/7.0/#sec-deletepropertyorthrow',
-	GetMethod: 'http://ecma-international.org/ecma-262/7.0/#sec-getmethod',
-	HasProperty: 'http://ecma-international.org/ecma-262/7.0/#sec-hasproperty',
-	HasOwnProperty: 'http://ecma-international.org/ecma-262/7.0/#sec-hasownproperty',
-	Call: 'http://ecma-international.org/ecma-262/7.0/#sec-call',
-	Construct: 'http://ecma-international.org/ecma-262/7.0/#sec-construct',
-	SetIntegrityLevel: 'http://ecma-international.org/ecma-262/7.0/#sec-setintegritylevel',
-	TestIntegrityLevel: 'http://ecma-international.org/ecma-262/7.0/#sec-testintegritylevel',
-	CreateArrayFromList: 'http://ecma-international.org/ecma-262/7.0/#sec-createarrayfromlist',
-	CreateListFromArrayLike: 'http://ecma-international.org/ecma-262/7.0/#sec-createlistfromarraylike',
-	Invoke: 'http://ecma-international.org/ecma-262/7.0/#sec-invoke',
-	OrdinaryHasInstance: 'http://ecma-international.org/ecma-262/7.0/#sec-ordinaryhasinstance',
-	SpeciesConstructor: 'http://ecma-international.org/ecma-262/7.0/#sec-speciesconstructor',
-	EnumerableOwnNames: 'http://ecma-international.org/ecma-262/7.0/#sec-enumerableownnames',
-	GetIterator: 'http://ecma-international.org/ecma-262/7.0/#sec-getiterator',
-	IteratorNext: 'http://ecma-international.org/ecma-262/7.0/#sec-iteratornext',
-	IteratorComplete: 'http://ecma-international.org/ecma-262/7.0/#sec-iteratorcomplete',
-	IteratorValue: 'http://ecma-international.org/ecma-262/7.0/#sec-iteratorvalue',
-	IteratorStep: 'http://ecma-international.org/ecma-262/7.0/#sec-iteratorstep',
-	IteratorClose: 'http://ecma-international.org/ecma-262/7.0/#sec-iteratorclose',
-	CreateIterResultObject: 'http://ecma-international.org/ecma-262/7.0/#sec-createiterresultobject',
-	CreateListIterator: 'http://ecma-international.org/ecma-262/7.0/#sec-createlistiterator',
-	Type: 'http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types',
-	thisNumberValue: 'http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-number-prototype-object',
-	thisTimeValue: 'http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-date-prototype-object',
-	thisStringValue: 'http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-string-prototype-object',
-	RegExpExec: 'http://ecma-international.org/ecma-262/7.0/#sec-regexpexec',
-	RegExpBuiltinExec: 'http://ecma-international.org/ecma-262/7.0/#sec-regexpbuiltinexec',
-	IsConcatSpreadable: 'http://ecma-international.org/ecma-262/7.0/#sec-isconcatspreadable',
-	IsPromise: 'http://ecma-international.org/ecma-262/7.0/#sec-ispromise',
-	ArraySpeciesCreate: 'http://ecma-international.org/ecma-262/7.0/#sec-arrayspeciescreate',
-	AdvanceStringIndex: 'http://ecma-international.org/ecma-262/6.0/#sec-advancestringindex'
+	IsPropertyDescriptor: 'https://ecma-international.org/ecma-262/7.0/#sec-property-descriptor-specification-type',
+	IsAccessorDescriptor: 'https://ecma-international.org/ecma-262/7.0/#sec-isaccessordescriptor',
+	IsDataDescriptor: 'https://ecma-international.org/ecma-262/7.0/#sec-isdatadescriptor',
+	IsGenericDescriptor: 'https://ecma-international.org/ecma-262/7.0/#sec-isgenericdescriptor',
+	FromPropertyDescriptor: 'https://ecma-international.org/ecma-262/7.0/#sec-frompropertydescriptor',
+	ToPropertyDescriptor: 'https://ecma-international.org/ecma-262/7.0/#sec-topropertydescriptor',
+	CompletePropertyDescriptor: 'https://ecma-international.org/ecma-262/7.0/#sec-completepropertydescriptor',
+	ToPrimitive: 'https://ecma-international.org/ecma-262/7.0/#sec-toprimitive',
+	ToBoolean: 'https://ecma-international.org/ecma-262/7.0/#sec-toboolean',
+	ToNumber: 'https://ecma-international.org/ecma-262/7.0/#sec-tonumber',
+	ToInteger: 'https://ecma-international.org/ecma-262/7.0/#sec-tointeger',
+	ToInt32: 'https://ecma-international.org/ecma-262/7.0/#sec-toint32',
+	ToUint32: 'https://ecma-international.org/ecma-262/7.0/#sec-touint32',
+	ToInt16: 'https://ecma-international.org/ecma-262/7.0/#sec-toint16',
+	ToUint16: 'https://ecma-international.org/ecma-262/7.0/#sec-touint16',
+	ToInt8: 'https://ecma-international.org/ecma-262/7.0/#sec-toint8',
+	ToUint8: 'https://ecma-international.org/ecma-262/7.0/#sec-touint8',
+	ToUint8Clamp: 'https://ecma-international.org/ecma-262/7.0/#sec-touint8clamp',
+	ToString: 'https://ecma-international.org/ecma-262/7.0/#sec-tostring',
+	ToObject: 'https://ecma-international.org/ecma-262/7.0/#sec-toobject',
+	ToPropertyKey: 'https://ecma-international.org/ecma-262/7.0/#sec-topropertykey',
+	ToLength: 'https://ecma-international.org/ecma-262/7.0/#sec-tolength',
+	CanonicalNumericIndexString: 'https://ecma-international.org/ecma-262/7.0/#sec-canonicalnumericindexstring',
+	RequireObjectCoercible: 'https://ecma-international.org/ecma-262/7.0/#sec-requireobjectcoercible',
+	IsArray: 'https://ecma-international.org/ecma-262/7.0/#sec-isarray',
+	IsCallable: 'https://ecma-international.org/ecma-262/7.0/#sec-iscallable',
+	IsConstructor: 'https://ecma-international.org/ecma-262/7.0/#sec-isconstructor',
+	IsExtensible: 'https://ecma-international.org/ecma-262/7.0/#sec-isextensible-o',
+	IsInteger: 'https://ecma-international.org/ecma-262/7.0/#sec-isinteger',
+	IsPropertyKey: 'https://ecma-international.org/ecma-262/7.0/#sec-ispropertykey',
+	IsRegExp: 'https://ecma-international.org/ecma-262/7.0/#sec-isregexp',
+	SameValue: 'https://ecma-international.org/ecma-262/7.0/#sec-samevalue',
+	SameValueZero: 'https://ecma-international.org/ecma-262/7.0/#sec-samevaluezero',
+	SameValueNonNumber: 'https://ecma-international.org/ecma-262/7.0/#sec-samevaluenonnumber',
+	Get: 'https://ecma-international.org/ecma-262/7.0/#sec-get-o-p',
+	GetV: 'https://ecma-international.org/ecma-262/7.0/#sec-getv',
+	Set: 'https://ecma-international.org/ecma-262/7.0/#sec-set-o-p-v-throw',
+	CreateDataProperty: 'https://ecma-international.org/ecma-262/7.0/#sec-createdataproperty',
+	CreateMethodProperty: 'https://ecma-international.org/ecma-262/7.0/#sec-createmethodproperty',
+	CreateDataPropertyOrThrow: 'https://ecma-international.org/ecma-262/7.0/#sec-createdatapropertyorthrow',
+	DefinePropertyOrThrow: 'https://ecma-international.org/ecma-262/7.0/#sec-definepropertyorthrow',
+	DeletePropertyOrThrow: 'https://ecma-international.org/ecma-262/7.0/#sec-deletepropertyorthrow',
+	GetMethod: 'https://ecma-international.org/ecma-262/7.0/#sec-getmethod',
+	HasProperty: 'https://ecma-international.org/ecma-262/7.0/#sec-hasproperty',
+	HasOwnProperty: 'https://ecma-international.org/ecma-262/7.0/#sec-hasownproperty',
+	Call: 'https://ecma-international.org/ecma-262/7.0/#sec-call',
+	Construct: 'https://ecma-international.org/ecma-262/7.0/#sec-construct',
+	SetIntegrityLevel: 'https://ecma-international.org/ecma-262/7.0/#sec-setintegritylevel',
+	TestIntegrityLevel: 'https://ecma-international.org/ecma-262/7.0/#sec-testintegritylevel',
+	CreateArrayFromList: 'https://ecma-international.org/ecma-262/7.0/#sec-createarrayfromlist',
+	CreateListFromArrayLike: 'https://ecma-international.org/ecma-262/7.0/#sec-createlistfromarraylike',
+	Invoke: 'https://ecma-international.org/ecma-262/7.0/#sec-invoke',
+	OrdinaryHasInstance: 'https://ecma-international.org/ecma-262/7.0/#sec-ordinaryhasinstance',
+	SpeciesConstructor: 'https://ecma-international.org/ecma-262/7.0/#sec-speciesconstructor',
+	EnumerableOwnNames: 'https://ecma-international.org/ecma-262/7.0/#sec-enumerableownnames',
+	GetIterator: 'https://ecma-international.org/ecma-262/7.0/#sec-getiterator',
+	IteratorNext: 'https://ecma-international.org/ecma-262/7.0/#sec-iteratornext',
+	IteratorComplete: 'https://ecma-international.org/ecma-262/7.0/#sec-iteratorcomplete',
+	IteratorValue: 'https://ecma-international.org/ecma-262/7.0/#sec-iteratorvalue',
+	IteratorStep: 'https://ecma-international.org/ecma-262/7.0/#sec-iteratorstep',
+	IteratorClose: 'https://ecma-international.org/ecma-262/7.0/#sec-iteratorclose',
+	CreateIterResultObject: 'https://ecma-international.org/ecma-262/7.0/#sec-createiterresultobject',
+	CreateListIterator: 'https://ecma-international.org/ecma-262/7.0/#sec-createlistiterator',
+	Type: 'https://ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types',
+	thisNumberValue: 'https://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-number-prototype-object',
+	thisTimeValue: 'https://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-date-prototype-object',
+	thisStringValue: 'https://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-string-prototype-object',
+	RegExpExec: 'https://ecma-international.org/ecma-262/7.0/#sec-regexpexec',
+	RegExpBuiltinExec: 'https://ecma-international.org/ecma-262/7.0/#sec-regexpbuiltinexec',
+	IsConcatSpreadable: 'https://ecma-international.org/ecma-262/7.0/#sec-isconcatspreadable',
+	IsPromise: 'https://ecma-international.org/ecma-262/7.0/#sec-ispromise',
+	ArraySpeciesCreate: 'https://ecma-international.org/ecma-262/7.0/#sec-arrayspeciescreate',
+	ObjectCreate: 'https://ecma-international.org/ecma-262/7.0/#sec-objectcreate',
+	AdvanceStringIndex: 'https://ecma-international.org/ecma-262/7.0/#sec-advancestringindex',
+	OrdinarySet: 'https://ecma-international.org/ecma-262/7.0/#sec-ordinaryset',
+	NormalCompletion: 'https://ecma-international.org/ecma-262/7.0/#sec-normalcompletion'
 };

operations/2017.js

 'use strict';
 
 module.exports = {
-	IsPropertyDescriptor: 'http://ecma-international.org/ecma-262/8.0/#sec-property-descriptor-specification-type',
-	IsAccessorDescriptor: 'http://ecma-international.org/ecma-262/8.0/#sec-isaccessordescriptor',
-	IsDataDescriptor: 'http://ecma-international.org/ecma-262/8.0/#sec-isdatadescriptor',
-	IsGenericDescriptor: 'http://ecma-international.org/ecma-262/8.0/#sec-isgenericdescriptor',
-	FromPropertyDescriptor: 'http://ecma-international.org/ecma-262/8.0/#sec-frompropertydescriptor',
-	ToPropertyDescriptor: 'http://ecma-international.org/ecma-262/8.0/#sec-topropertydescriptor',
-	CompletePropertyDescriptor: 'http://ecma-international.org/ecma-262/8.0/#sec-completepropertydescriptor',
-	ToPrimitive: 'http://ecma-international.org/ecma-262/8.0/#sec-toprimitive',
-	ToBoolean: 'http://ecma-international.org/ecma-262/8.0/#sec-toboolean',
-	ToNumber: 'http://ecma-international.org/ecma-262/8.0/#sec-tonumber',
-	ToInteger: 'http://ecma-international.org/ecma-262/8.0/#sec-tointeger',
-	ToInt32: 'http://ecma-international.org/ecma-262/8.0/#sec-toint32',
-	ToUint32: 'http://ecma-international.org/ecma-262/8.0/#sec-touint32',
-	ToInt16: 'http://ecma-international.org/ecma-262/8.0/#sec-toint16',
-	ToUint16: 'http://ecma-international.org/ecma-262/8.0/#sec-touint16',
-	ToInt8: 'http://ecma-international.org/ecma-262/8.0/#sec-toint8',
-	ToUint8: 'http://ecma-international.org/ecma-262/8.0/#sec-touint8',
-	ToUint8Clamp: 'http://ecma-international.org/ecma-262/8.0/#sec-touint8clamp',
-	ToString: 'http://ecma-international.org/ecma-262/8.0/#sec-tostring',
-	ToObject: 'http://ecma-international.org/ecma-262/8.0/#sec-toobject',
-	ToPropertyKey: 'http://ecma-international.org/ecma-262/8.0/#sec-topropertykey',
-	ToLength: 'http://ecma-international.org/ecma-262/8.0/#sec-tolength',
-	CanonicalNumericIndexString: 'http://ecma-international.org/ecma-262/8.0/#sec-canonicalnumericindexstring',
-	ToIndex: 'http://ecma-international.org/ecma-262/8.0/#sec-toindex',
-	RequireObjectCoercible: 'http://ecma-international.org/ecma-262/8.0/#sec-requireobjectcoercible',
-	IsArray: 'http://ecma-international.org/ecma-262/8.0/#sec-isarray',
-	IsCallable: 'http://ecma-international.org/ecma-262/8.0/#sec-iscallable',
-	IsConstructor: 'http://ecma-international.org/ecma-262/8.0/#sec-isconstructor',
-	IsExtensible: 'http://ecma-international.org/ecma-262/8.0/#sec-isextensible-o',
-	IsInteger: 'http://ecma-international.org/ecma-262/8.0/#sec-isinteger',
-	IsPropertyKey: 'http://ecma-international.org/ecma-262/8.0/#sec-ispropertykey',
-	IsRegExp: 'http://ecma-international.org/ecma-262/8.0/#sec-isregexp',
-	SameValue: 'http://ecma-international.org/ecma-262/8.0/#sec-samevalue',
-	SameValueZero: 'http://ecma-international.org/ecma-262/8.0/#sec-samevaluezero',
-	SameValueNonNumber: 'http://ecma-international.org/ecma-262/8.0/#sec-samevaluenonnumber',
-	Get: 'http://ecma-international.org/ecma-262/8.0/#sec-get-o-p',
-	GetV: 'http://ecma-international.org/ecma-262/8.0/#sec-getv',
-	Set: 'http://ecma-international.org/ecma-262/8.0/#sec-set-o-p-v-throw',
-	CreateDataProperty: 'http://ecma-international.org/ecma-262/8.0/#sec-createdataproperty',
-	CreateMethodProperty: 'http://ecma-international.org/ecma-262/8.0/#sec-createmethodproperty',
-	CreateDataPropertyOrThrow: 'http://ecma-international.org/ecma-262/8.0/#sec-createdatapropertyorthrow',
-	DefinePropertyOrThrow: 'http://ecma-international.org/ecma-262/8.0/#sec-definepropertyorthrow',
-	DeletePropertyOrThrow: 'http://ecma-international.org/ecma-262/8.0/#sec-deletepropertyorthrow',
-	GetMethod: 'http://ecma-international.org/ecma-262/8.0/#sec-getmethod',
-	HasProperty: 'http://ecma-international.org/ecma-262/8.0/#sec-hasproperty',
-	HasOwnProperty: 'http://ecma-international.org/ecma-262/8.0/#sec-hasownproperty',
-	Call: 'http://ecma-international.org/ecma-262/8.0/#sec-call',
-	Construct: 'http://ecma-international.org/ecma-262/8.0/#sec-construct',
-	SetIntegrityLevel: 'http://ecma-international.org/ecma-262/8.0/#sec-setintegritylevel',
-	TestIntegrityLevel: 'http://ecma-international.org/ecma-262/8.0/#sec-testintegritylevel',
-	CreateArrayFromList: 'http://ecma-international.org/ecma-262/8.0/#sec-createarrayfromlist',
-	CreateListFromArrayLike: 'http://ecma-international.org/ecma-262/8.0/#sec-createlistfromarraylike',
-	Invoke: 'http://ecma-international.org/ecma-262/8.0/#sec-invoke',
-	OrdinaryHasInstance: 'http://ecma-international.org/ecma-262/8.0/#sec-ordinaryhasinstance',
-	SpeciesConstructor: 'http://ecma-international.org/ecma-262/8.0/#sec-speciesconstructor',
-	EnumerableOwnProperties: 'http://ecma-international.org/ecma-262/8.0/#sec-enumerableownproperties',
-	GetIterator: 'http://ecma-international.org/ecma-262/8.0/#sec-getiterator',
-	IteratorNext: 'http://ecma-international.org/ecma-262/8.0/#sec-iteratornext',
-	IteratorComplete: 'http://ecma-international.org/ecma-262/8.0/#sec-iteratorcomplete',
-	IteratorValue: 'http://ecma-international.org/ecma-262/8.0/#sec-iteratorvalue',
-	IteratorStep: 'http://ecma-international.org/ecma-262/8.0/#sec-iteratorstep',
-	IteratorClose: 'http://ecma-international.org/ecma-262/8.0/#sec-iteratorclose',
-	CreateIterResultObject: 'http://ecma-international.org/ecma-262/8.0/#sec-createiterresultobject',
-	CreateListIterator: 'http://ecma-international.org/ecma-262/8.0/#sec-createlistiterator',
-	Type: 'http://ecma-international.org/ecma-262/8.0/#sec-ecmascript-language-types',
-	thisNumberValue: 'http://ecma-international.org/ecma-262/8.0/#sec-properties-of-the-number-prototype-object',
-	thisTimeValue: 'http://ecma-international.org/ecma-262/8.0/#sec-properties-of-the-date-prototype-object',
-	thisStringValue: 'http://ecma-international.org/ecma-262/8.0/#sec-properties-of-the-string-prototype-object',
-	RegExpExec: 'http://ecma-international.org/ecma-262/8.0/#sec-regexpexec',
-	RegExpBuiltinExec: 'http://ecma-international.org/ecma-262/8.0/#sec-regexpbuiltinexec',
-	IsConcatSpreadable: 'http://ecma-international.org/ecma-262/8.0/#sec-isconcatspreadable',
-	IsPromise: 'http://ecma-international.org/ecma-262/8.0/#sec-ispromise',
-	ArraySpeciesCreate: 'http://ecma-international.org/ecma-262/8.0/#sec-arrayspeciescreate',
-	AdvanceStringIndex: 'http://ecma-international.org/ecma-262/6.0/#sec-advancestringindex'
+	IsPropertyDescriptor: 'https://ecma-international.org/ecma-262/8.0/#sec-property-descriptor-specification-type',
+	IsAccessorDescriptor: 'https://ecma-international.org/ecma-262/8.0/#sec-isaccessordescriptor',
+	IsDataDescriptor: 'https://ecma-international.org/ecma-262/8.0/#sec-isdatadescriptor',
+	IsGenericDescriptor: 'https://ecma-international.org/ecma-262/8.0/#sec-isgenericdescriptor',
+	FromPropertyDescriptor: 'https://ecma-international.org/ecma-262/8.0/#sec-frompropertydescriptor',
+	ToPropertyDescriptor: 'https://ecma-international.org/ecma-262/8.0/#sec-topropertydescriptor',
+	CompletePropertyDescriptor: 'https://ecma-international.org/ecma-262/8.0/#sec-completepropertydescriptor',
+	ToPrimitive: 'https://ecma-international.org/ecma-262/8.0/#sec-toprimitive',
+	ToBoolean: 'https://ecma-international.org/ecma-262/8.0/#sec-toboolean',
+	ToNumber: 'https://ecma-international.org/ecma-262/8.0/#sec-tonumber',
+	ToInteger: 'https://ecma-international.org/ecma-262/8.0/#sec-tointeger',
+	ToInt32: 'https://ecma-international.org/ecma-262/8.0/#sec-toint32',
+	ToUint32: 'https://ecma-international.org/ecma-262/8.0/#sec-touint32',
+	ToInt16: 'https://ecma-international.org/ecma-262/8.0/#sec-toint16',
+	ToUint16: 'https://ecma-international.org/ecma-262/8.0/#sec-touint16',
+	ToInt8: 'https://ecma-international.org/ecma-262/8.0/#sec-toint8',
+	ToUint8: 'https://ecma-international.org/ecma-262/8.0/#sec-touint8',
+	ToUint8Clamp: 'https://ecma-international.org/ecma-262/8.0/#sec-touint8clamp',
+	ToString: 'https://ecma-international.org/ecma-262/8.0/#sec-tostring',
+	ToObject: 'https://ecma-international.org/ecma-262/8.0/#sec-toobject',
+	ToPropertyKey: 'https://ecma-international.org/ecma-262/8.0/#sec-topropertykey',
+	ToLength: 'https://ecma-international.org/ecma-262/8.0/#sec-tolength',
+	CanonicalNumericIndexString: 'https://ecma-international.org/ecma-262/8.0/#sec-canonicalnumericindexstring',
+	ToIndex: 'https://ecma-international.org/ecma-262/8.0/#sec-toindex',
+	RequireObjectCoercible: 'https://ecma-international.org/ecma-262/8.0/#sec-requireobjectcoercible',
+	IsArray: 'https://ecma-international.org/ecma-262/8.0/#sec-isarray',
+	IsCallable: 'https://ecma-international.org/ecma-262/8.0/#sec-iscallable',
+	IsConstructor: 'https://ecma-international.org/ecma-262/8.0/#sec-isconstructor',
+	IsExtensible: 'https://ecma-international.org/ecma-262/8.0/#sec-isextensible-o',
+	IsInteger: 'https://ecma-international.org/ecma-262/8.0/#sec-isinteger',
+	IsPropertyKey: 'https://ecma-international.org/ecma-262/8.0/#sec-ispropertykey',
+	IsRegExp: 'https://ecma-international.org/ecma-262/8.0/#sec-isregexp',
+	SameValue: 'https://ecma-international.org/ecma-262/8.0/#sec-samevalue',
+	SameValueZero: 'https://ecma-international.org/ecma-262/8.0/#sec-samevaluezero',
+	SameValueNonNumber: 'https://ecma-international.org/ecma-262/8.0/#sec-samevaluenonnumber',
+	Get: 'https://ecma-international.org/ecma-262/8.0/#sec-get-o-p',
+	GetV: 'https://ecma-international.org/ecma-262/8.0/#sec-getv',
+	Set: 'https://ecma-international.org/ecma-262/8.0/#sec-set-o-p-v-throw',
+	CreateDataProperty: 'https://ecma-international.org/ecma-262/8.0/#sec-createdataproperty',
+	CreateMethodProperty: 'https://ecma-international.org/ecma-262/8.0/#sec-createmethodproperty',
+	CreateDataPropertyOrThrow: 'https://ecma-international.org/ecma-262/8.0/#sec-createdatapropertyorthrow',
+	DefinePropertyOrThrow: 'https://ecma-international.org/ecma-262/8.0/#sec-definepropertyorthrow',
+	DeletePropertyOrThrow: 'https://ecma-international.org/ecma-262/8.0/#sec-deletepropertyorthrow',
+	GetMethod: 'https://ecma-international.org/ecma-262/8.0/#sec-getmethod',
+	HasProperty: 'https://ecma-international.org/ecma-262/8.0/#sec-hasproperty',
+	HasOwnProperty: 'https://ecma-international.org/ecma-262/8.0/#sec-hasownproperty',
+	Call: 'https://ecma-international.org/ecma-262/8.0/#sec-call',
+	Construct: 'https://ecma-international.org/ecma-262/8.0/#sec-construct',
+	SetIntegrityLevel: 'https://ecma-international.org/ecma-262/8.0/#sec-setintegritylevel',
+	TestIntegrityLevel: 'https://ecma-international.org/ecma-262/8.0/#sec-testintegritylevel',
+	CreateArrayFromList: 'https://ecma-international.org/ecma-262/8.0/#sec-createarrayfromlist',
+	CreateListFromArrayLike: 'https://ecma-international.org/ecma-262/8.0/#sec-createlistfromarraylike',
+	Invoke: 'https://ecma-international.org/ecma-262/8.0/#sec-invoke',
+	OrdinaryHasInstance: 'https://ecma-international.org/ecma-262/8.0/#sec-ordinaryhasinstance',
+	SpeciesConstructor: 'https://ecma-international.org/ecma-262/8.0/#sec-speciesconstructor',
+	EnumerableOwnProperties: 'https://ecma-international.org/ecma-262/8.0/#sec-enumerableownproperties',
+	GetIterator: 'https://ecma-international.org/ecma-262/8.0/#sec-getiterator',
+	IteratorNext: 'https://ecma-international.org/ecma-262/8.0/#sec-iteratornext',
+	IteratorComplete: 'https://ecma-international.org/ecma-262/8.0/#sec-iteratorcomplete',
+	IteratorValue: 'https://ecma-international.org/ecma-262/8.0/#sec-iteratorvalue',
+	IteratorStep: 'https://ecma-international.org/ecma-262/8.0/#sec-iteratorstep',
+	IteratorClose: 'https://ecma-international.org/ecma-262/8.0/#sec-iteratorclose',
+	CreateIterResultObject: 'https://ecma-international.org/ecma-262/8.0/#sec-createiterresultobject',
+	CreateListIterator: 'https://ecma-international.org/ecma-262/8.0/#sec-createlistiterator',
+	Type: 'https://ecma-international.org/ecma-262/8.0/#sec-ecmascript-language-types',
+	thisNumberValue: 'https://ecma-international.org/ecma-262/8.0/#sec-properties-of-the-number-prototype-object',
+	thisTimeValue: 'https://ecma-international.org/ecma-262/8.0/#sec-properties-of-the-date-prototype-object',
+	thisStringValue: 'https://ecma-international.org/ecma-262/8.0/#sec-properties-of-the-string-prototype-object',
+	RegExpExec: 'https://ecma-international.org/ecma-262/8.0/#sec-regexpexec',
+	RegExpBuiltinExec: 'https://ecma-international.org/ecma-262/8.0/#sec-regexpbuiltinexec',
+	IsConcatSpreadable: 'https://ecma-international.org/ecma-262/8.0/#sec-isconcatspreadable',
+	IsPromise: 'https://ecma-international.org/ecma-262/8.0/#sec-ispromise',
+	ArraySpeciesCreate: 'https://ecma-international.org/ecma-262/8.0/#sec-arrayspeciescreate',
+	ObjectCreate: 'https://ecma-international.org/ecma-262/8.0/#sec-objectcreate',
+	AdvanceStringIndex: 'https://ecma-international.org/ecma-262/8.0/#sec-advancestringindex',
+	OrdinarySet: 'https://ecma-international.org/ecma-262/8.0/#sec-ordinaryset',
+	NormalCompletion: 'https://ecma-international.org/ecma-262/8.0/#sec-normalcompletion',
+	IsSharedArrayBuffer: 'https://ecma-international.org/ecma-262/8.0/#sec-issharedarraybuffer',
 };

operations/es5.js

 'use strict';
 
 module.exports = {
-	IsPropertyDescriptor: 'http://ecma-international.org/ecma-262/5.1/#sec-8.10',
-	IsAccessorDescriptor: 'http://ecma-international.org/ecma-262/5.1/#sec-8.10.1',
-	IsDataDescriptor: 'http://ecma-international.org/ecma-262/5.1/#sec-8.10.2',
-	IsGenericDescriptor: 'http://ecma-international.org/ecma-262/5.1/#sec-8.10.3',
-	FromPropertyDescriptor: 'http://ecma-international.org/ecma-262/5.1/#sec-8.10.4',
-	ToPropertyDescriptor: 'http://ecma-international.org/ecma-262/5.1/#sec-8.10.5'
+	IsPropertyDescriptor: 'https://ecma-international.org/ecma-262/5.1/#sec-8.10',
+	IsAccessorDescriptor: 'https://ecma-international.org/ecma-262/5.1/#sec-8.10.1',
+	IsDataDescriptor: 'https://ecma-international.org/ecma-262/5.1/#sec-8.10.2',
+	IsGenericDescriptor: 'https://ecma-international.org/ecma-262/5.1/#sec-8.10.3',
+	FromPropertyDescriptor: 'https://ecma-international.org/ecma-262/5.1/#sec-8.10.4',
+	ToPropertyDescriptor: 'https://ecma-international.org/ecma-262/5.1/#sec-8.10.5'
 };

package.json

 {
 	"name": "es-abstract",
-	"version": "1.11.0",
+	"version": "1.12.0",
 	"author": {
@@ -25,3 +25,3 @@ "name": "Jordan Harband",
 		"tests-only": "node test",
-		"coverage": "nyc npm run --silent tests-only >/dev/null 2>&1",
+		"coverage": "nyc npm run --silent tests-only >/dev/null",
 		"postcoverage": "nyc report",
@@ -59,3 +59,3 @@ "lint": "npm run --silent jscs && npm run --silent eslint",
 		"editorconfig-tools": "^0.1.1",
-		"eslint": "^4.19.0",
+		"eslint": "^4.19.1",
 		"foreach": "^2.0.5",
@@ -65,5 +65,6 @@ "jscs": "^3.0.7",
 		"nyc": "^10.3.2",
+		"object-inspect": "^1.6.0",
 		"object-is": "^1.0.1",
 		"object.assign": "^4.1.0",
-		"replace": "^0.3.0",
+		"replace": "^1.0.0",
 		"safe-publish-latest": "^1.1.1",
@@ -93,3 +94,9 @@ "semver": "^5.5.0",
 		"node": ">= 0.4"
+	},
+	"greenkeeper": {
+		"//": "nyc is ignored because it requires node 4+, and we support older than that",
+		"ignore": [
+			"nyc"
+		]
 	}
 }

README.md

@@ -41,5 +41,5 @@ # es-abstract <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
 [npm-badge-png]: https://nodei.co/npm/es-abstract.png?downloads=true&stars=true
-[license-image]: http://img.shields.io/npm/l/es-abstract.svg
+[license-image]: https://img.shields.io/npm/l/es-abstract.svg
 [license-url]: LICENSE
-[downloads-image]: http://img.shields.io/npm/dm/es-abstract.svg
-[downloads-url]: http://npm-stat.com/charts.html?package=es-abstract
+[downloads-image]: https://img.shields.io/npm/dm/es-abstract.svg
+[downloads-url]: https://npm-stat.com/charts.html?package=es-abstract

test/diffOps.js

@@ -6,3 +6,3 @@ 'use strict';
 
-module.exports = function diffOperations(actual, expected) {
+module.exports = function diffOperations(actual, expected, expectedMissing) {
 	var actualKeys = keys(actual);
@@ -19,3 +19,3 @@ var expectedKeys = keys(expected);
 	forEach(expectedKeys, function (op) {
-		if (!(op in actual)) {
+		if (!(op in actual) && expectedMissing.indexOf(op) === -1) {
 			missing.push(op);
@@ -22,0 +22,0 @@ }

test/es2015.js

@@ -8,5 +8,5 @@ 'use strict';
 // jscs:disable
-var expectedMissing = ['CreateMethodProperty', 'DefinePropertyOrThrow', 'DeletePropertyOrThrow', 'Construct', 'SetIntegrityLevel', 'TestIntegrityLevel', 'CreateArrayFromList', 'CreateListFromArrayLike', 'OrdinaryHasInstance', 'EnumerableOwnNames', 'CreateListIterator', 'thisNumberValue', 'thisTimeValue', 'thisStringValue', 'RegExpBuiltinExec', 'IsPromise'];
+var expectedMissing = ['CreateMethodProperty', 'DefinePropertyOrThrow', 'DeletePropertyOrThrow', 'Construct', 'SetIntegrityLevel', 'TestIntegrityLevel', 'CreateArrayFromList', 'CreateListFromArrayLike', 'OrdinaryHasInstance', 'EnumerableOwnNames', 'GetIterator', 'IteratorNext', 'IteratorComplete', 'IteratorValue', 'IteratorStep', 'IteratorClose', 'CreateListIterator', 'thisNumberValue', 'thisTimeValue', 'thisStringValue', 'RegExpBuiltinExec', 'IsPromise', 'NormalCompletion'];
 // jscs:enable
 
 require('./tests').es2015(ES, ops, expectedMissing);

test/es2016.js

@@ -8,5 +8,5 @@ 'use strict';
 // jscs:disable
-var expectedMissing = ['CreateMethodProperty', 'DefinePropertyOrThrow', 'DeletePropertyOrThrow', 'Construct', 'SetIntegrityLevel', 'TestIntegrityLevel', 'CreateArrayFromList', 'CreateListFromArrayLike', 'OrdinaryHasInstance', 'EnumerableOwnNames', 'CreateListIterator', 'thisNumberValue', 'thisTimeValue', 'thisStringValue', 'RegExpBuiltinExec', 'IsPromise'];
+var expectedMissing = ['CreateMethodProperty', 'DefinePropertyOrThrow', 'DeletePropertyOrThrow', 'Construct', 'SetIntegrityLevel', 'TestIntegrityLevel', 'CreateArrayFromList', 'CreateListFromArrayLike', 'OrdinaryHasInstance', 'EnumerableOwnNames', 'GetIterator', 'IteratorNext', 'IteratorComplete', 'IteratorValue', 'IteratorStep', 'IteratorClose', 'CreateListIterator', 'thisNumberValue', 'thisTimeValue', 'thisStringValue', 'RegExpBuiltinExec', 'IsPromise', 'OrdinarySet', 'NormalCompletion'];
 // jscs:enable
 
 require('./tests').es2016(ES, ops, expectedMissing);

test/es2017.js

@@ -8,5 +8,5 @@ 'use strict';
 // jscs:disable
-var expectedMissing = ['CreateMethodProperty', 'DefinePropertyOrThrow', 'DeletePropertyOrThrow', 'Construct', 'SetIntegrityLevel', 'TestIntegrityLevel', 'CreateArrayFromList', 'CreateListFromArrayLike', 'OrdinaryHasInstance', 'EnumerableOwnProperties', 'CreateListIterator', 'thisNumberValue', 'thisTimeValue', 'thisStringValue', 'RegExpBuiltinExec', 'IsPromise'];
+var expectedMissing = ['CreateMethodProperty', 'DefinePropertyOrThrow', 'DeletePropertyOrThrow', 'Construct', 'SetIntegrityLevel', 'TestIntegrityLevel', 'CreateArrayFromList', 'CreateListFromArrayLike', 'OrdinaryHasInstance', 'EnumerableOwnProperties', 'GetIterator', 'IteratorNext', 'IteratorComplete', 'IteratorValue', 'IteratorStep', 'IteratorClose', 'CreateListIterator', 'thisNumberValue', 'thisTimeValue', 'thisStringValue', 'RegExpBuiltinExec', 'IsPromise', 'OrdinarySet', 'NormalCompletion', 'IsSharedArrayBuffer'];
 // jscs:enable
 
 require('./tests').es2017(ES, ops, expectedMissing);

test/index.js

@@ -21,2 +21,4 @@ 'use strict';
 
+require('./GetIntrinsic');
+
 require('./es5');
@@ -23,0 +25,0 @@ require('./es6');

test/tests.js

@@ -7,3 +7,3 @@ 'use strict';
 var is = require('object-is');
-var debug = require('util').format;
+var debug = require('object-inspect');
 var assign = require('object.assign');
@@ -32,9 +32,14 @@
 
+var hasGroups = 'groups' in (/a/).exec('a');
+var groups = function groups(matchObject) {
+	return hasGroups ? assign(matchObject, { groups: matchObject.groups }) : matchObject;
+};
+
 var es2015 = function ES2015(ES, ops, expectedMissing) {
 	test('has expected operations', function (t) {
-		var diff = diffOps(ES, ops);
+		var diff = diffOps(ES, ops, expectedMissing);
 
 		t.deepEqual(diff.extra, [], 'no extra ops');
 
-		t.deepEqual(diff.missing, expectedMissing, 'no unexpected missing ops');
+		t.deepEqual(diff.missing, [], 'no unexpected missing ops');
 
@@ -1175,4 +1180,4 @@ t.end();
 			var match3 = ES.RegExpExec(R, S);
-			st.deepEqual(match1, assign(['a'], { index: 0, input: S }), 'match object 1 is as expected');
-			st.deepEqual(match2, assign(['a'], { index: 1, input: S }), 'match object 2 is as expected');
+			st.deepEqual(match1, assign(['a'], groups({ index: 0, input: S })), 'match object 1 is as expected');
+			st.deepEqual(match2, assign(['a'], groups({ index: 1, input: S })), 'match object 2 is as expected');
 			st.equal(match3, null, 'match 3 is null as expected');
@@ -1189,4 +1194,4 @@ st.end();
 			var match3 = ES.RegExpExec(R, S);
-			st.deepEqual(match1, assign(['a'], { index: 0, input: S }), 'match object 1 is as expected');
-			st.deepEqual(match2, assign(['a'], { index: 1, input: S }), 'match object 2 is as expected');
+			st.deepEqual(match1, assign(['a'], groups({ index: 0, input: S })), 'match object 1 is as expected');
+			st.deepEqual(match2, assign(['a'], groups({ index: 1, input: S })), 'match object 2 is as expected');
 			st.equal(match3, null, 'match 3 is null as expected');
@@ -1437,2 +1442,53 @@ st.end();
 
+	test('ObjectCreate', function (t) {
+		forEach(v.nonNullPrimitives, function (value) {
+			t['throws'](
+				function () { ES.ObjectCreate(value); },
+				TypeError,
+				debug(value) + ' is not null, or an object'
+			);
+		});
+
+		t.test('proto arg', function (st) {
+			var Parent = function Parent() {};
+			Parent.prototype.foo = {};
+			var child = ES.ObjectCreate(Parent.prototype);
+			st.equal(child instanceof Parent, true, 'child is instanceof Parent');
+			st.equal(child.foo, Parent.prototype.foo, 'child inherits properties from Parent.prototype');
+
+			st.end();
+		});
+
+		t.test('internal slots arg', function (st) {
+			st.doesNotThrow(function () { ES.ObjectCreate(null, []); }, 'an empty slot list is valid');
+
+			st['throws'](
+				function () { ES.ObjectCreate(null, ['a']); },
+				SyntaxError,
+				'internal slots are not supported'
+			);
+
+			st.end();
+		});
+
+		t.test('null proto', { skip: !Object.create }, function (st) {
+			st.equal('toString' in ({}), true, 'normal objects have toString');
+			st.equal('toString' in ES.ObjectCreate(null), false, 'makes a null object');
+
+			st.end();
+		});
+
+		t.test('null proto when no native Object.create', { skip: Object.create }, function (st) {
+			st['throws'](
+				function () { ES.ObjectCreate(null); },
+				SyntaxError,
+				'without a native Object.create, can not create null objects'
+			);
+
+			st.end();
+		});
+
+		t.end();
+	});
+
 	test('AdvanceStringIndex', function (t) {
@@ -1447,42 +1503,28 @@ forEach(v.nonStrings, function (nonString) {
 
-		forEach(v.nonIntegerNumbers, function (nonInteger) {
+		var notInts = v.nonNumbers.concat(
+			v.nonIntegerNumbers,
+			[Infinity, -Infinity, NaN, [], new Date(), Math.pow(2, 53), -1]
+		);
+		forEach(notInts, function (nonInt) {
 			t['throws'](
-				function () { ES.AdvanceStringIndex('', nonInteger, false); },
+				function () { ES.AdvanceStringIndex('abc', nonInt); },
 				TypeError,
-				'"index" argument must be an integer; ' + debug(nonInteger) + ' is not'
+				'"index" argument must be an integer, ' + debug(nonInt) + ' is not.'
 			);
 		});
-		forEach([-1, -42], function (negative) {
-			t['throws'](
-				function () { ES.AdvanceStringIndex('', negative, false); },
-				RangeError,
-				'"index" argument must be a non-negative integer; ' + debug(negative) + ' is not'
-			);
-		});
-		t['throws'](
-			function () { ES.AdvanceStringIndex('', MAX_SAFE_INTEGER + 1, false); },
-			RangeError,
-			'too large integers throw'
-		);
 
 		forEach(v.nonBooleans, function (nonBoolean) {
 			t['throws'](
-				function () { ES.AdvanceStringIndex('', 0, nonBoolean); },
+				function () { ES.AdvanceStringIndex('abc', 0, nonBoolean); },
 				TypeError,
-				'"unicode" argument must be a Boolean; ' + debug(nonBoolean) + ' is not'
+				debug(nonBoolean) + ' is not a Boolean'
 			);
 		});
 
-		t.test('when unicode is false', function (st) {
-			st.equal(ES.AdvanceStringIndex('', 0, false), 1, 'index is incremented by 1');
-			st.equal(ES.AdvanceStringIndex('abc', 0, false), 1, 'index is incremented by 1');
-			st.equal(ES.AdvanceStringIndex('', 3, false), 4, 'index is incremented by 1');
-			st.equal(ES.AdvanceStringIndex('abc', 3, false), 4, 'index is incremented by 1');
+		var str = 'a\uD83D\uDCA9c';
 
-			st.test('when the index is within the string', function (s2t) {
-				s2t.equal(ES.AdvanceStringIndex('abc', 0, false), 1, '0 -> 1');
-				s2t.equal(ES.AdvanceStringIndex('abc', 1, false), 2, '1 -> 2');
-				s2t.equal(ES.AdvanceStringIndex('abc', 2, false), 3, '2 -> 3');
-				s2t.end();
-			});
+		t.test('non-unicode mode', function (st) {
+			for (var i = 0; i < str.length + 2; i += 1) {
+				st.equal(ES.AdvanceStringIndex(str, i, false), i + 1, i + ' advances to ' + (i + 1));
+			}
 
@@ -1492,30 +1534,35 @@ st.end();
 
-		t.test('when unicode is true', function (st) {
-			st.test('when index + 1 >= length', function (s2t) {
-				t.equal(ES.AdvanceStringIndex('', 0, true), 1, 'index is incremented by 1');
-				t.equal(ES.AdvanceStringIndex('a', 0, true), 1, 'index is incremented by 1');
-				t.equal(ES.AdvanceStringIndex('a', 5, true), 6, 'index is incremented by 1');
-				s2t.end();
-			});
+		t.test('unicode mode', function (st) {
+			st.equal(ES.AdvanceStringIndex(str, 0, true), 1, '0 advances to 1');
+			st.equal(ES.AdvanceStringIndex(str, 1, true), 3, '1 advances to 3');
+			st.equal(ES.AdvanceStringIndex(str, 2, true), 3, '2 advances to 3');
+			st.equal(ES.AdvanceStringIndex(str, 3, true), 4, '3 advances to 4');
+			st.equal(ES.AdvanceStringIndex(str, 4, true), 5, '4 advances to 5');
 
-			st.test('when the index is within the string', function (s2t) {
-				s2t.equal(ES.AdvanceStringIndex('abc', 0, true), 1, '0 -> 1');
-				s2t.equal(ES.AdvanceStringIndex('abc', 1, true), 2, '1 -> 2');
-				s2t.equal(ES.AdvanceStringIndex('abc', 2, true), 3, '2 -> 3');
-				s2t.end();
-			});
+			st.end();
+		});
 
-			st.test('surrogate pairs', function (s2t) {
-				var lowestPair = String.fromCharCode('0xD800') + String.fromCharCode('0xDC00');
-				var highestPair = String.fromCharCode('0xDBFF') + String.fromCharCode('0xDFFF');
-				var poop = String.fromCharCode('0xD83D') + String.fromCharCode('0xDCA9');
-				s2t.equal(ES.AdvanceStringIndex(lowestPair, 0, true), 2, 'lowest surrogate pair, 0 -> 2');
-				s2t.equal(ES.AdvanceStringIndex(highestPair, 0, true), 2, 'highest surrogate pair, 0 -> 2');
-				s2t.equal(ES.AdvanceStringIndex(poop, 0, true), 2, 'poop, 0 -> 2');
-				s2t.end();
-			});
+		t.test('lone surrogates', function (st) {
+			var halfPoo = 'a\uD83Dc';
 
+			st.equal(ES.AdvanceStringIndex(halfPoo, 0, true), 1, '0 advances to 1');
+			st.equal(ES.AdvanceStringIndex(halfPoo, 1, true), 2, '1 advances to 2');
+			st.equal(ES.AdvanceStringIndex(halfPoo, 2, true), 3, '2 advances to 3');
+			st.equal(ES.AdvanceStringIndex(halfPoo, 3, true), 4, '3 advances to 4');
+
 			st.end();
 		});
 
+		t.test('surrogate pairs', function (st) {
+			var lowestPair = String.fromCharCode('0xD800') + String.fromCharCode('0xDC00');
+			var highestPair = String.fromCharCode('0xDBFF') + String.fromCharCode('0xDFFF');
+			var poop = String.fromCharCode('0xD83D') + String.fromCharCode('0xDCA9');
+
+			st.equal(ES.AdvanceStringIndex(lowestPair, 0, true), 2, 'lowest surrogate pair, 0 -> 2');
+			st.equal(ES.AdvanceStringIndex(highestPair, 0, true), 2, 'highest surrogate pair, 0 -> 2');
+			st.equal(ES.AdvanceStringIndex(poop, 0, true), 2, 'poop, 0 -> 2');
+
+			st.end();
+		});
+
 		t.end();
@@ -1522,0 +1569,0 @@ });

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Improved metrics

Total package byte prevSize

166038

increased by9.37%

Number of package files

40

increased by5.26%

Lines of code

3308

increased by8.49%

Worsened metrics

Dev dependency count

14

increased by7.69%

No dependency changes