es-abstract - npm Package Compare versions

Comparing version 1.17.6 to 1.18.0-next.0

2015/AdvanceStringIndex.js

@@ -9,2 +9,4 @@ 'use strict';
 var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
+var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
 
@@ -36,3 +38,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	var first = $charCodeAt(S, index);
-	if (first < 0xD800 || first > 0xDBFF) {
+	if (!isLeadingSurrogate(first)) {
 		return index + 1;
@@ -42,3 +44,3 @@ }
 	var second = $charCodeAt(S, index + 1);
-	if (second < 0xDC00 || second > 0xDFFF) {
+	if (!isTrailingSurrogate(second)) {
 		return index + 1;
@@ -45,0 +47,0 @@ }

2015/Day.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -12,3 +10,3 @@
 module.exports = function Day(t) {
-	return $floor(t / msPerDay);
+	return floor(t / msPerDay);
 };

2015/DayFromYear.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 
 module.exports = function DayFromYear(y) {
-	return (365 * (y - 1970)) + $floor((y - 1969) / 4) - $floor((y - 1901) / 100) + $floor((y - 1601) / 400);
+	return (365 * (y - 1970)) + floor((y - 1969) / 4) - floor((y - 1901) / 100) + floor((y - 1601) / 400);
 };
 

2015/DaysInYear.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
 
@@ -8,9 +8,9 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 module.exports = function DaysInYear(y) {
-	if (mod(y, 4) !== 0) {
+	if (modulo(y, 4) !== 0) {
 		return 365;
 	}
-	if (mod(y, 100) !== 0) {
+	if (modulo(y, 100) !== 0) {
 		return 366;
 	}
-	if (mod(y, 400) !== 0) {
+	if (modulo(y, 400) !== 0) {
 		return 365;
@@ -17,0 +17,0 @@ }

2015/GetSubstitution.js

@@ -85,3 +85,3 @@
 					// if (n > m, impl-defined)
-					result += (n <= m && Type(captures[n - 1]) === 'Undefined') ? '' : captures[n - 1];
+					result += n <= m && Type(captures[n - 1]) === 'Undefined' ? '' : captures[n - 1];
 					i += 1;
@@ -93,3 +93,3 @@ } else if (isDigit(next) && (nextIsLast || isDigit(nextNext))) {
 					// if nn === '00' or nn > m, impl-defined
-					result += (nn <= m && Type(captures[nnI]) === 'Undefined') ? '' : captures[nnI];
+					result += nn <= m && Type(captures[nnI]) === 'Undefined' ? '' : captures[nnI];
 					i += 2;
@@ -96,0 +96,0 @@ } else {

2015/HourFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerHour = timeConstants.msPerHour;
 module.exports = function HourFromTime(t) {
-	return mod($floor(t / msPerHour), HoursPerDay);
+	return modulo(floor(t / msPerHour), HoursPerDay);
 };

2015/IsInteger.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var abs = require('./abs');
+var floor = require('./floor');
 
-var $Math = GetIntrinsic('%Math%');
-
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 var $isNaN = require('../helpers/isNaN');
@@ -19,4 +15,4 @@ var $isFinite = require('../helpers/isFinite');
 	}
-	var abs = $abs(argument);
-	return $floor(abs) === abs;
+	var absValue = abs(argument);
+	return floor(absValue) === absValue;
 };

2015/MakeDay.js

@@ -5,6 +5,4 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
 var $DateUTC = GetIntrinsic('%Date.UTC%');
 
-var mod = require('../helpers/mod');
 var $isFinite = require('../helpers/isFinite');
@@ -14,2 +12,4 @@
 var Day = require('./Day');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var MonthFromTime = require('./MonthFromTime');
@@ -28,4 +28,4 @@ var ToInteger = require('./ToInteger');
 	var dt = ToInteger(date);
-	var ym = y + $floor(m / 12);
-	var mn = mod(m, 12);
+	var ym = y + floor(m / 12);
+	var mn = modulo(m, 12);
 	var t = $DateUTC(ym, mn, 1);
@@ -32,0 +32,0 @@ if (YearFromTime(t) !== ym || MonthFromTime(t) !== mn || DateFromTime(t) !== 1) {

2015/MinFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerMinute = timeConstants.msPerMinute;
 module.exports = function MinFromTime(t) {
-	return mod($floor(t / msPerMinute), MinutesPerHour);
+	return modulo(floor(t / msPerMinute), MinutesPerHour);
 };

2015/msFromTime.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerSecond = require('../helpers/timeConstants').msPerSecond;
@@ -9,3 +10,3 @@
 module.exports = function msFromTime(t) {
-	return mod(t, msPerSecond);
+	return modulo(t, msPerSecond);
 };

2015/SecFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerSecond = timeConstants.msPerSecond;
 module.exports = function SecFromTime(t) {
-	return mod($floor(t / msPerSecond), SecondsPerMinute);
+	return modulo(floor(t / msPerSecond), SecondsPerMinute);
 };

2015/TimeClip.js

@@ -7,6 +7,6 @@ 'use strict';
 var $Number = GetIntrinsic('%Number%');
-var $abs = GetIntrinsic('%Math.abs%');
 
 var $isFinite = require('../helpers/isFinite');
 
+var abs = require('./abs');
 var ToNumber = require('./ToNumber');
@@ -17,3 +17,3 @@
 module.exports = function TimeClip(time) {
-	if (!$isFinite(time) || $abs(time) > 8.64e15) {
+	if (!$isFinite(time) || abs(time) > 8.64e15) {
 		return NaN;
@@ -20,0 +20,0 @@ }

2015/TimeWithinDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -9,4 +10,4 @@
 module.exports = function TimeWithinDay(t) {
-	return mod(t, msPerDay);
+	return modulo(t, msPerDay);
 };
 

2015/ToPropertyDescriptor.js

@@ -36,3 +36,3 @@ 'use strict';
 		if (typeof getter !== 'undefined' && !IsCallable(getter)) {
-			throw new TypeError('getter must be a function');
+			throw new $TypeError('getter must be a function');
 		}
@@ -39,0 +39,0 @@ desc['[[Get]]'] = getter;

2015/ToUint16.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var ToNumber = require('./ToNumber');
@@ -12,7 +11,3 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 // http://www.ecma-international.org/ecma-262/5.1/#sec-9.7
@@ -23,4 +18,4 @@
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x10000);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x10000);
 };

2015/ToUint8.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
@@ -12,12 +8,14 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
+// https://ecma-international.org/ecma-262/6.0/#sec-touint8
+
 module.exports = function ToUint8(argument) {
 	var number = ToNumber(argument);
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x100);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x100);
 };

2015/ToUint8Clamp.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
+var floor = require('./floor');
 
 var $isNaN = require('../helpers/isNaN');
 
-var $floor = $Math.floor;
-
 // https://www.ecma-international.org/ecma-262/6.0/#sec-touint8clamp
@@ -19,3 +14,3 @@
 	if (number >= 0xFF) { return 0xFF; }
-	var f = $floor(argument);
+	var f = floor(argument);
 	if (f + 0.5 < number) { return f + 1; }
@@ -22,0 +17,0 @@ if (number < f + 0.5) { return f; }

2015/WeekDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
-
 var Day = require('./Day');
+var modulo = require('./modulo');
 
@@ -10,3 +9,3 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.6
 module.exports = function WeekDay(t) {
-	return mod(Day(t) + 4, 7);
+	return modulo(Day(t) + 4, 7);
 };

2016/AdvanceStringIndex.js

@@ -9,2 +9,4 @@ 'use strict';
 var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
+var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
 
@@ -36,3 +38,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	var first = $charCodeAt(S, index);
-	if (first < 0xD800 || first > 0xDBFF) {
+	if (!isLeadingSurrogate(first)) {
 		return index + 1;
@@ -42,3 +44,3 @@ }
 	var second = $charCodeAt(S, index + 1);
-	if (second < 0xDC00 || second > 0xDFFF) {
+	if (!isTrailingSurrogate(second)) {
 		return index + 1;
@@ -45,0 +47,0 @@ }

2016/Day.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -12,3 +10,3 @@
 module.exports = function Day(t) {
-	return $floor(t / msPerDay);
+	return floor(t / msPerDay);
 };

2016/DayFromYear.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 
 module.exports = function DayFromYear(y) {
-	return (365 * (y - 1970)) + $floor((y - 1969) / 4) - $floor((y - 1901) / 100) + $floor((y - 1601) / 400);
+	return (365 * (y - 1970)) + floor((y - 1969) / 4) - floor((y - 1901) / 100) + floor((y - 1601) / 400);
 };
 

2016/DaysInYear.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
 
@@ -8,9 +8,9 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 module.exports = function DaysInYear(y) {
-	if (mod(y, 4) !== 0) {
+	if (modulo(y, 4) !== 0) {
 		return 365;
 	}
-	if (mod(y, 100) !== 0) {
+	if (modulo(y, 100) !== 0) {
 		return 366;
 	}
-	if (mod(y, 400) !== 0) {
+	if (modulo(y, 400) !== 0) {
 		return 365;
@@ -17,0 +17,0 @@ }

2016/GetSubstitution.js

@@ -85,3 +85,3 @@
 					// if (n > m, impl-defined)
-					result += (n <= m && Type(captures[n - 1]) === 'Undefined') ? '' : captures[n - 1];
+					result += n <= m && Type(captures[n - 1]) === 'Undefined' ? '' : captures[n - 1];
 					i += 1;
@@ -93,3 +93,3 @@ } else if (isDigit(next) && (nextIsLast || isDigit(nextNext))) {
 					// if nn === '00' or nn > m, impl-defined
-					result += (nn <= m && Type(captures[nnI]) === 'Undefined') ? '' : captures[nnI];
+					result += nn <= m && Type(captures[nnI]) === 'Undefined' ? '' : captures[nnI];
 					i += 2;
@@ -96,0 +96,0 @@ } else {

2016/HourFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerHour = timeConstants.msPerHour;
 module.exports = function HourFromTime(t) {
-	return mod($floor(t / msPerHour), HoursPerDay);
+	return modulo(floor(t / msPerHour), HoursPerDay);
 };

2016/IsInteger.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var abs = require('./abs');
+var floor = require('./floor');
 
-var $Math = GetIntrinsic('%Math%');
-
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 var $isNaN = require('../helpers/isNaN');
@@ -19,4 +15,4 @@ var $isFinite = require('../helpers/isFinite');
 	}
-	var abs = $abs(argument);
-	return $floor(abs) === abs;
+	var absValue = abs(argument);
+	return floor(absValue) === absValue;
 };

2016/MakeDay.js

@@ -5,6 +5,4 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
 var $DateUTC = GetIntrinsic('%Date.UTC%');
 
-var mod = require('../helpers/mod');
 var $isFinite = require('../helpers/isFinite');
@@ -14,2 +12,4 @@
 var Day = require('./Day');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var MonthFromTime = require('./MonthFromTime');
@@ -28,4 +28,4 @@ var ToInteger = require('./ToInteger');
 	var dt = ToInteger(date);
-	var ym = y + $floor(m / 12);
-	var mn = mod(m, 12);
+	var ym = y + floor(m / 12);
+	var mn = modulo(m, 12);
 	var t = $DateUTC(ym, mn, 1);
@@ -32,0 +32,0 @@ if (YearFromTime(t) !== ym || MonthFromTime(t) !== mn || DateFromTime(t) !== 1) {

2016/MinFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerMinute = timeConstants.msPerMinute;
 module.exports = function MinFromTime(t) {
-	return mod($floor(t / msPerMinute), MinutesPerHour);
+	return modulo(floor(t / msPerMinute), MinutesPerHour);
 };

2016/msFromTime.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerSecond = require('../helpers/timeConstants').msPerSecond;
@@ -9,3 +10,3 @@
 module.exports = function msFromTime(t) {
-	return mod(t, msPerSecond);
+	return modulo(t, msPerSecond);
 };

2016/SecFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerSecond = timeConstants.msPerSecond;
 module.exports = function SecFromTime(t) {
-	return mod($floor(t / msPerSecond), SecondsPerMinute);
+	return modulo(floor(t / msPerSecond), SecondsPerMinute);
 };

2016/TimeClip.js

@@ -7,6 +7,6 @@ 'use strict';
 var $Number = GetIntrinsic('%Number%');
-var $abs = GetIntrinsic('%Math.abs%');
 
 var $isFinite = require('../helpers/isFinite');
 
+var abs = require('./abs');
 var ToNumber = require('./ToNumber');
@@ -17,3 +17,3 @@
 module.exports = function TimeClip(time) {
-	if (!$isFinite(time) || $abs(time) > 8.64e15) {
+	if (!$isFinite(time) || abs(time) > 8.64e15) {
 		return NaN;
@@ -20,0 +20,0 @@ }

2016/TimeWithinDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -9,4 +10,4 @@
 module.exports = function TimeWithinDay(t) {
-	return mod(t, msPerDay);
+	return modulo(t, msPerDay);
 };
 

2016/ToPropertyDescriptor.js

@@ -36,3 +36,3 @@ 'use strict';
 		if (typeof getter !== 'undefined' && !IsCallable(getter)) {
-			throw new TypeError('getter must be a function');
+			throw new $TypeError('getter must be a function');
 		}
@@ -39,0 +39,0 @@ desc['[[Get]]'] = getter;

2016/ToUint16.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var ToNumber = require('./ToNumber');
@@ -12,7 +11,3 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 // http://www.ecma-international.org/ecma-262/5.1/#sec-9.7
@@ -23,4 +18,4 @@
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x10000);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x10000);
 };

2016/ToUint8.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
@@ -12,12 +8,14 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
+// https://ecma-international.org/ecma-262/6.0/#sec-touint8
+
 module.exports = function ToUint8(argument) {
 	var number = ToNumber(argument);
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x100);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x100);
 };

2016/ToUint8Clamp.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
+var floor = require('./floor');
 
 var $isNaN = require('../helpers/isNaN');
 
-var $floor = $Math.floor;
-
 // https://www.ecma-international.org/ecma-262/6.0/#sec-touint8clamp
@@ -19,3 +14,3 @@
 	if (number >= 0xFF) { return 0xFF; }
-	var f = $floor(argument);
+	var f = floor(argument);
 	if (f + 0.5 < number) { return f + 1; }
@@ -22,0 +17,0 @@ if (number < f + 0.5) { return f; }

2016/WeekDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
-
 var Day = require('./Day');
+var modulo = require('./modulo');
 
@@ -10,3 +9,3 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.6
 module.exports = function WeekDay(t) {
-	return mod(Day(t) + 4, 7);
+	return modulo(Day(t) + 4, 7);
 };

2017/AdvanceStringIndex.js

@@ -9,2 +9,4 @@ 'use strict';
 var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
+var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
 
@@ -36,3 +38,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	var first = $charCodeAt(S, index);
-	if (first < 0xD800 || first > 0xDBFF) {
+	if (!isLeadingSurrogate(first)) {
 		return index + 1;
@@ -42,3 +44,3 @@ }
 	var second = $charCodeAt(S, index + 1);
-	if (second < 0xDC00 || second > 0xDFFF) {
+	if (!isTrailingSurrogate(second)) {
 		return index + 1;
@@ -45,0 +47,0 @@ }

2017/Day.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -12,3 +10,3 @@
 module.exports = function Day(t) {
-	return $floor(t / msPerDay);
+	return floor(t / msPerDay);
 };

2017/DayFromYear.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 
 module.exports = function DayFromYear(y) {
-	return (365 * (y - 1970)) + $floor((y - 1969) / 4) - $floor((y - 1901) / 100) + $floor((y - 1601) / 400);
+	return (365 * (y - 1970)) + floor((y - 1969) / 4) - floor((y - 1901) / 100) + floor((y - 1601) / 400);
 };
 

2017/DaysInYear.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
 
@@ -8,9 +8,9 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 module.exports = function DaysInYear(y) {
-	if (mod(y, 4) !== 0) {
+	if (modulo(y, 4) !== 0) {
 		return 365;
 	}
-	if (mod(y, 100) !== 0) {
+	if (modulo(y, 100) !== 0) {
 		return 366;
 	}
-	if (mod(y, 400) !== 0) {
+	if (modulo(y, 400) !== 0) {
 		return 365;
@@ -17,0 +17,0 @@ }

2017/GetSubstitution.js

@@ -85,3 +85,3 @@
 					// if (n > m, impl-defined)
-					result += (n <= m && Type(captures[n - 1]) === 'Undefined') ? '' : captures[n - 1];
+					result += n <= m && Type(captures[n - 1]) === 'Undefined' ? '' : captures[n - 1];
 					i += 1;
@@ -93,3 +93,3 @@ } else if (isDigit(next) && (nextIsLast || isDigit(nextNext))) {
 					// if nn === '00' or nn > m, impl-defined
-					result += (nn <= m && Type(captures[nnI]) === 'Undefined') ? '' : captures[nnI];
+					result += nn <= m && Type(captures[nnI]) === 'Undefined' ? '' : captures[nnI];
 					i += 2;
@@ -96,0 +96,0 @@ } else {

2017/HourFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerHour = timeConstants.msPerHour;
 module.exports = function HourFromTime(t) {
-	return mod($floor(t / msPerHour), HoursPerDay);
+	return modulo(floor(t / msPerHour), HoursPerDay);
 };

2017/IsInteger.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var abs = require('./abs');
+var floor = require('./floor');
 
-var $Math = GetIntrinsic('%Math%');
-
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 var $isNaN = require('../helpers/isNaN');
@@ -19,4 +15,4 @@ var $isFinite = require('../helpers/isFinite');
 	}
-	var abs = $abs(argument);
-	return $floor(abs) === abs;
+	var absValue = abs(argument);
+	return floor(absValue) === absValue;
 };

2017/MakeDay.js

@@ -5,6 +5,4 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
 var $DateUTC = GetIntrinsic('%Date.UTC%');
 
-var mod = require('../helpers/mod');
 var $isFinite = require('../helpers/isFinite');
@@ -14,2 +12,4 @@
 var Day = require('./Day');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var MonthFromTime = require('./MonthFromTime');
@@ -28,4 +28,4 @@ var ToInteger = require('./ToInteger');
 	var dt = ToInteger(date);
-	var ym = y + $floor(m / 12);
-	var mn = mod(m, 12);
+	var ym = y + floor(m / 12);
+	var mn = modulo(m, 12);
 	var t = $DateUTC(ym, mn, 1);
@@ -32,0 +32,0 @@ if (YearFromTime(t) !== ym || MonthFromTime(t) !== mn || DateFromTime(t) !== 1) {

2017/MinFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerMinute = timeConstants.msPerMinute;
 module.exports = function MinFromTime(t) {
-	return mod($floor(t / msPerMinute), MinutesPerHour);
+	return modulo(floor(t / msPerMinute), MinutesPerHour);
 };

2017/msFromTime.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerSecond = require('../helpers/timeConstants').msPerSecond;
@@ -9,3 +10,3 @@
 module.exports = function msFromTime(t) {
-	return mod(t, msPerSecond);
+	return modulo(t, msPerSecond);
 };

2017/SecFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerSecond = timeConstants.msPerSecond;
 module.exports = function SecFromTime(t) {
-	return mod($floor(t / msPerSecond), SecondsPerMinute);
+	return modulo(floor(t / msPerSecond), SecondsPerMinute);
 };

2017/TimeClip.js

@@ -7,6 +7,6 @@ 'use strict';
 var $Number = GetIntrinsic('%Number%');
-var $abs = GetIntrinsic('%Math.abs%');
 
 var $isFinite = require('../helpers/isFinite');
 
+var abs = require('./abs');
 var ToNumber = require('./ToNumber');
@@ -17,3 +17,3 @@
 module.exports = function TimeClip(time) {
-	if (!$isFinite(time) || $abs(time) > 8.64e15) {
+	if (!$isFinite(time) || abs(time) > 8.64e15) {
 		return NaN;
@@ -20,0 +20,0 @@ }

2017/TimeWithinDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -9,4 +10,4 @@
 module.exports = function TimeWithinDay(t) {
-	return mod(t, msPerDay);
+	return modulo(t, msPerDay);
 };
 

2017/ToPropertyDescriptor.js

@@ -36,3 +36,3 @@ 'use strict';
 		if (typeof getter !== 'undefined' && !IsCallable(getter)) {
-			throw new TypeError('getter must be a function');
+			throw new $TypeError('getter must be a function');
 		}
@@ -39,0 +39,0 @@ desc['[[Get]]'] = getter;

2017/ToUint16.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var ToNumber = require('./ToNumber');
@@ -12,7 +11,3 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 // http://www.ecma-international.org/ecma-262/5.1/#sec-9.7
@@ -23,4 +18,4 @@
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x10000);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x10000);
 };

2017/ToUint8.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
@@ -12,12 +8,14 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
+// https://ecma-international.org/ecma-262/6.0/#sec-touint8
+
 module.exports = function ToUint8(argument) {
 	var number = ToNumber(argument);
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x100);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x100);
 };

2017/ToUint8Clamp.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
+var floor = require('./floor');
 
 var $isNaN = require('../helpers/isNaN');
 
-var $floor = $Math.floor;
-
 // https://www.ecma-international.org/ecma-262/6.0/#sec-touint8clamp
@@ -19,3 +14,3 @@
 	if (number >= 0xFF) { return 0xFF; }
-	var f = $floor(argument);
+	var f = floor(argument);
 	if (f + 0.5 < number) { return f + 1; }
@@ -22,0 +17,0 @@ if (number < f + 0.5) { return f; }

2017/WeekDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
-
 var Day = require('./Day');
+var modulo = require('./modulo');
 
@@ -10,3 +9,3 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.6
 module.exports = function WeekDay(t) {
-	return mod(Day(t) + 4, 7);
+	return modulo(Day(t) + 4, 7);
 };

2018/AdvanceStringIndex.js

@@ -9,2 +9,4 @@ 'use strict';
 var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
+var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
 
@@ -36,3 +38,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	var first = $charCodeAt(S, index);
-	if (first < 0xD800 || first > 0xDBFF) {
+	if (!isLeadingSurrogate(first)) {
 		return index + 1;
@@ -42,3 +44,3 @@ }
 	var second = $charCodeAt(S, index + 1);
-	if (second < 0xDC00 || second > 0xDFFF) {
+	if (!isTrailingSurrogate(second)) {
 		return index + 1;
@@ -45,0 +47,0 @@ }

2018/CopyDataProperties.js

 'use strict';
 
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
 var callBound = require('../helpers/callBound');
@@ -23,11 +27,11 @@ var forEach = require('../helpers/forEach');
 	if (Type(target) !== 'Object') {
-		throw new TypeError('Assertion failed: "target" must be an 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');
+		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');
+			throw new $TypeError('Assertion failed: "excludedItems" must be a List of Property Keys');
 		}
@@ -34,0 +38,0 @@ }

2018/Day.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -12,3 +10,3 @@
 module.exports = function Day(t) {
-	return $floor(t / msPerDay);
+	return floor(t / msPerDay);
 };

2018/DayFromYear.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 
 module.exports = function DayFromYear(y) {
-	return (365 * (y - 1970)) + $floor((y - 1969) / 4) - $floor((y - 1901) / 100) + $floor((y - 1601) / 400);
+	return (365 * (y - 1970)) + floor((y - 1969) / 4) - floor((y - 1901) / 100) + floor((y - 1601) / 400);
 };
 

2018/DaysInYear.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
 
@@ -8,9 +8,9 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 module.exports = function DaysInYear(y) {
-	if (mod(y, 4) !== 0) {
+	if (modulo(y, 4) !== 0) {
 		return 365;
 	}
-	if (mod(y, 100) !== 0) {
+	if (modulo(y, 100) !== 0) {
 		return 366;
 	}
-	if (mod(y, 400) !== 0) {
+	if (modulo(y, 400) !== 0) {
 		return 365;
@@ -17,0 +17,0 @@ }

2018/GetSubstitution.js

@@ -91,3 +91,3 @@ 'use strict';
 					// if (n > m, impl-defined)
-					result += (n <= m && Type(captures[n - 1]) === 'Undefined') ? '' : captures[n - 1];
+					result += n <= m && Type(captures[n - 1]) === 'Undefined' ? '' : captures[n - 1];
 					i += 1;
@@ -99,3 +99,3 @@ } else if (isDigit(next) && (nextIsLast || isDigit(nextNext))) {
 					// if nn === '00' or nn > m, impl-defined
-					result += (nn <= m && Type(captures[nnI]) === 'Undefined') ? '' : captures[nnI];
+					result += nn <= m && Type(captures[nnI]) === 'Undefined' ? '' : captures[nnI];
 					i += 2;
@@ -102,0 +102,0 @@ } else if (next === '<') {

2018/HourFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerHour = timeConstants.msPerHour;
 module.exports = function HourFromTime(t) {
-	return mod($floor(t / msPerHour), HoursPerDay);
+	return modulo(floor(t / msPerHour), HoursPerDay);
 };

2018/IsInteger.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var abs = require('./abs');
+var floor = require('./floor');
 
-var $Math = GetIntrinsic('%Math%');
-
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 var $isNaN = require('../helpers/isNaN');
@@ -19,4 +15,4 @@ var $isFinite = require('../helpers/isFinite');
 	}
-	var abs = $abs(argument);
-	return $floor(abs) === abs;
+	var absValue = abs(argument);
+	return floor(absValue) === absValue;
 };

2018/MakeDay.js

@@ -5,6 +5,4 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
 var $DateUTC = GetIntrinsic('%Date.UTC%');
 
-var mod = require('../helpers/mod');
 var $isFinite = require('../helpers/isFinite');
@@ -14,2 +12,4 @@
 var Day = require('./Day');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var MonthFromTime = require('./MonthFromTime');
@@ -28,4 +28,4 @@ var ToInteger = require('./ToInteger');
 	var dt = ToInteger(date);
-	var ym = y + $floor(m / 12);
-	var mn = mod(m, 12);
+	var ym = y + floor(m / 12);
+	var mn = modulo(m, 12);
 	var t = $DateUTC(ym, mn, 1);
@@ -32,0 +32,0 @@ if (YearFromTime(t) !== ym || MonthFromTime(t) !== mn || DateFromTime(t) !== 1) {

2018/MinFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerMinute = timeConstants.msPerMinute;
 module.exports = function MinFromTime(t) {
-	return mod($floor(t / msPerMinute), MinutesPerHour);
+	return modulo(floor(t / msPerMinute), MinutesPerHour);
 };

2018/msFromTime.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerSecond = require('../helpers/timeConstants').msPerSecond;
@@ -9,3 +10,3 @@
 module.exports = function msFromTime(t) {
-	return mod(t, msPerSecond);
+	return modulo(t, msPerSecond);
 };

2018/NumberToString.js

@@ -6,2 +6,3 @@ 'use strict';
 var $String = GetIntrinsic('%String%');
+var $TypeError = GetIntrinsic('%TypeError%');
 
@@ -14,3 +15,3 @@ var Type = require('./Type');
 	if (Type(m) !== 'Number') {
-		throw new TypeError('Assertion failed: "m" must be a String');
+		throw new $TypeError('Assertion failed: "m" must be a String');
 	}
@@ -17,0 +18,0 @@

2018/SecFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerSecond = timeConstants.msPerSecond;
 module.exports = function SecFromTime(t) {
-	return mod($floor(t / msPerSecond), SecondsPerMinute);
+	return modulo(floor(t / msPerSecond), SecondsPerMinute);
 };

2018/TimeClip.js

@@ -7,6 +7,6 @@ 'use strict';
 var $Number = GetIntrinsic('%Number%');
-var $abs = GetIntrinsic('%Math.abs%');
 
 var $isFinite = require('../helpers/isFinite');
 
+var abs = require('./abs');
 var ToNumber = require('./ToNumber');
@@ -17,3 +17,3 @@
 module.exports = function TimeClip(time) {
-	if (!$isFinite(time) || $abs(time) > 8.64e15) {
+	if (!$isFinite(time) || abs(time) > 8.64e15) {
 		return NaN;
@@ -20,0 +20,0 @@ }

2018/TimeWithinDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -9,4 +10,4 @@
 module.exports = function TimeWithinDay(t) {
-	return mod(t, msPerDay);
+	return modulo(t, msPerDay);
 };
 

2018/ToPropertyDescriptor.js

@@ -36,3 +36,3 @@ 'use strict';
 		if (typeof getter !== 'undefined' && !IsCallable(getter)) {
-			throw new TypeError('getter must be a function');
+			throw new $TypeError('getter must be a function');
 		}
@@ -39,0 +39,0 @@ desc['[[Get]]'] = getter;

2018/ToUint16.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var ToNumber = require('./ToNumber');
@@ -12,7 +11,3 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 // http://www.ecma-international.org/ecma-262/5.1/#sec-9.7
@@ -23,4 +18,4 @@
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x10000);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x10000);
 };

2018/ToUint8.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
@@ -12,12 +8,14 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
+// https://ecma-international.org/ecma-262/6.0/#sec-touint8
+
 module.exports = function ToUint8(argument) {
 	var number = ToNumber(argument);
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x100);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x100);
 };

2018/ToUint8Clamp.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
+var floor = require('./floor');
 
 var $isNaN = require('../helpers/isNaN');
 
-var $floor = $Math.floor;
-
 // https://www.ecma-international.org/ecma-262/6.0/#sec-touint8clamp
@@ -19,3 +14,3 @@
 	if (number >= 0xFF) { return 0xFF; }
-	var f = $floor(argument);
+	var f = floor(argument);
 	if (f + 0.5 < number) { return f + 1; }
@@ -22,0 +17,0 @@ if (number < f + 0.5) { return f; }

2018/WeekDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
-
 var Day = require('./Day');
+var modulo = require('./modulo');
 
@@ -10,3 +9,3 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.6
 module.exports = function WeekDay(t) {
-	return mod(Day(t) + 4, 7);
+	return modulo(Day(t) + 4, 7);
 };

2019/AdvanceStringIndex.js

@@ -9,2 +9,4 @@ 'use strict';
 var MAX_SAFE_INTEGER = require('../helpers/maxSafeInteger');
+var isLeadingSurrogate = require('../helpers/isLeadingSurrogate');
+var isTrailingSurrogate = require('../helpers/isTrailingSurrogate');
 
@@ -36,3 +38,3 @@ var $TypeError = GetIntrinsic('%TypeError%');
 	var first = $charCodeAt(S, index);
-	if (first < 0xD800 || first > 0xDBFF) {
+	if (!isLeadingSurrogate(first)) {
 		return index + 1;
@@ -42,3 +44,3 @@ }
 	var second = $charCodeAt(S, index + 1);
-	if (second < 0xDC00 || second > 0xDFFF) {
+	if (!isTrailingSurrogate(second)) {
 		return index + 1;
@@ -45,0 +47,0 @@ }

2019/CopyDataProperties.js

 'use strict';
 
+var GetIntrinsic = require('../GetIntrinsic');
+
+var $TypeError = GetIntrinsic('%TypeError%');
+
 var callBound = require('../helpers/callBound');
@@ -23,11 +27,11 @@ var forEach = require('../helpers/forEach');
 	if (Type(target) !== 'Object') {
-		throw new TypeError('Assertion failed: "target" must be an 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');
+		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');
+			throw new $TypeError('Assertion failed: "excludedItems" must be a List of Property Keys');
 		}
@@ -34,0 +38,0 @@ }

2019/Day.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -12,3 +10,3 @@
 module.exports = function Day(t) {
-	return $floor(t / msPerDay);
+	return floor(t / msPerDay);
 };

2019/DayFromYear.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 
 module.exports = function DayFromYear(y) {
-	return (365 * (y - 1970)) + $floor((y - 1969) / 4) - $floor((y - 1901) / 100) + $floor((y - 1601) / 400);
+	return (365 * (y - 1970)) + floor((y - 1969) / 4) - floor((y - 1901) / 100) + floor((y - 1601) / 400);
 };
 

2019/DaysInYear.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
 
@@ -8,9 +8,9 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 module.exports = function DaysInYear(y) {
-	if (mod(y, 4) !== 0) {
+	if (modulo(y, 4) !== 0) {
 		return 365;
 	}
-	if (mod(y, 100) !== 0) {
+	if (modulo(y, 100) !== 0) {
 		return 366;
 	}
-	if (mod(y, 400) !== 0) {
+	if (modulo(y, 400) !== 0) {
 		return 365;
@@ -17,0 +17,0 @@ }

2019/FlattenIntoArray.js

@@ -19,3 +19,3 @@ 'use strict';
 
-// eslint-disable-next-line max-params, max-statements
+// eslint-disable-next-line max-params
 module.exports = function FlattenIntoArray(target, source, sourceLen, start, depth) {
@@ -22,0 +22,0 @@ var mapperFunction;

2019/GetSubstitution.js

@@ -91,3 +91,3 @@ 'use strict';
 					// if (n > m, impl-defined)
-					result += (n <= m && Type(captures[n - 1]) === 'Undefined') ? '' : captures[n - 1];
+					result += n <= m && Type(captures[n - 1]) === 'Undefined' ? '' : captures[n - 1];
 					i += 1;
@@ -99,3 +99,3 @@ } else if (isDigit(next) && (nextIsLast || isDigit(nextNext))) {
 					// if nn === '00' or nn > m, impl-defined
-					result += (nn <= m && Type(captures[nnI]) === 'Undefined') ? '' : captures[nnI];
+					result += nn <= m && Type(captures[nnI]) === 'Undefined' ? '' : captures[nnI];
 					i += 2;
@@ -102,0 +102,0 @@ } else if (next === '<') {

2019/HourFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerHour = timeConstants.msPerHour;
 module.exports = function HourFromTime(t) {
-	return mod($floor(t / msPerHour), HoursPerDay);
+	return modulo(floor(t / msPerHour), HoursPerDay);
 };

2019/IsInteger.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var abs = require('./abs');
+var floor = require('./floor');
 
-var $Math = GetIntrinsic('%Math%');
-
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 var $isNaN = require('../helpers/isNaN');
@@ -19,4 +15,4 @@ var $isFinite = require('../helpers/isFinite');
 	}
-	var abs = $abs(argument);
-	return $floor(abs) === abs;
+	var absValue = abs(argument);
+	return floor(absValue) === absValue;
 };

2019/MakeDay.js

@@ -5,6 +5,4 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
 var $DateUTC = GetIntrinsic('%Date.UTC%');
 
-var mod = require('../helpers/mod');
 var $isFinite = require('../helpers/isFinite');
@@ -14,2 +12,4 @@
 var Day = require('./Day');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var MonthFromTime = require('./MonthFromTime');
@@ -28,4 +28,4 @@ var ToInteger = require('./ToInteger');
 	var dt = ToInteger(date);
-	var ym = y + $floor(m / 12);
-	var mn = mod(m, 12);
+	var ym = y + floor(m / 12);
+	var mn = modulo(m, 12);
 	var t = $DateUTC(ym, mn, 1);
@@ -32,0 +32,0 @@ if (YearFromTime(t) !== ym || MonthFromTime(t) !== mn || DateFromTime(t) !== 1) {

2019/MinFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerMinute = timeConstants.msPerMinute;
 module.exports = function MinFromTime(t) {
-	return mod($floor(t / msPerMinute), MinutesPerHour);
+	return modulo(floor(t / msPerMinute), MinutesPerHour);
 };

2019/msFromTime.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerSecond = require('../helpers/timeConstants').msPerSecond;
@@ -9,3 +10,3 @@
 module.exports = function msFromTime(t) {
-	return mod(t, msPerSecond);
+	return modulo(t, msPerSecond);
 };

2019/NumberToString.js

@@ -6,2 +6,3 @@ 'use strict';
 var $String = GetIntrinsic('%String%');
+var $TypeError = GetIntrinsic('%TypeError%');
 
@@ -14,3 +15,3 @@ var Type = require('./Type');
 	if (Type(m) !== 'Number') {
-		throw new TypeError('Assertion failed: "m" must be a String');
+		throw new $TypeError('Assertion failed: "m" must be a String');
 	}
@@ -17,0 +18,0 @@

2019/SecFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerSecond = timeConstants.msPerSecond;
 module.exports = function SecFromTime(t) {
-	return mod($floor(t / msPerSecond), SecondsPerMinute);
+	return modulo(floor(t / msPerSecond), SecondsPerMinute);
 };

2019/TimeClip.js

@@ -7,6 +7,6 @@ 'use strict';
 var $Number = GetIntrinsic('%Number%');
-var $abs = GetIntrinsic('%Math.abs%');
 
 var $isFinite = require('../helpers/isFinite');
 
+var abs = require('./abs');
 var ToNumber = require('./ToNumber');
@@ -17,3 +17,3 @@
 module.exports = function TimeClip(time) {
-	if (!$isFinite(time) || $abs(time) > 8.64e15) {
+	if (!$isFinite(time) || abs(time) > 8.64e15) {
 		return NaN;
@@ -20,0 +20,0 @@ }

2019/TimeWithinDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -9,4 +10,4 @@
 module.exports = function TimeWithinDay(t) {
-	return mod(t, msPerDay);
+	return modulo(t, msPerDay);
 };
 

2019/ToPropertyDescriptor.js

@@ -36,3 +36,3 @@ 'use strict';
 		if (typeof getter !== 'undefined' && !IsCallable(getter)) {
-			throw new TypeError('getter must be a function');
+			throw new $TypeError('getter must be a function');
 		}
@@ -39,0 +39,0 @@ desc['[[Get]]'] = getter;

2019/ToUint16.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var ToNumber = require('./ToNumber');
@@ -12,7 +11,3 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 // http://www.ecma-international.org/ecma-262/5.1/#sec-9.7
@@ -23,4 +18,4 @@
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x10000);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x10000);
 };

2019/ToUint8.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
@@ -12,12 +8,14 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
+// https://ecma-international.org/ecma-262/6.0/#sec-touint8
+
 module.exports = function ToUint8(argument) {
 	var number = ToNumber(argument);
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x100);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x100);
 };

2019/ToUint8Clamp.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
 var ToNumber = require('./ToNumber');
+var floor = require('./floor');
 
 var $isNaN = require('../helpers/isNaN');
 
-var $floor = $Math.floor;
-
 // https://www.ecma-international.org/ecma-262/6.0/#sec-touint8clamp
@@ -19,3 +14,3 @@
 	if (number >= 0xFF) { return 0xFF; }
-	var f = $floor(argument);
+	var f = floor(argument);
 	if (f + 0.5 < number) { return f + 1; }
@@ -22,0 +17,0 @@ if (number < f + 0.5) { return f; }

2019/WeekDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
-
 var Day = require('./Day');
+var modulo = require('./modulo');
 
@@ -10,3 +9,3 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.6
 module.exports = function WeekDay(t) {
-	return mod(Day(t) + 4, 7);
+	return modulo(Day(t) + 4, 7);
 };

5/Day.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -12,3 +10,3 @@
 module.exports = function Day(t) {
-	return $floor(t / msPerDay);
+	return floor(t / msPerDay);
 };

5/DayFromYear.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
 // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 
 module.exports = function DayFromYear(y) {
-	return (365 * (y - 1970)) + $floor((y - 1969) / 4) - $floor((y - 1901) / 100) + $floor((y - 1601) / 400);
+	return (365 * (y - 1970)) + floor((y - 1969) / 4) - floor((y - 1901) / 100) + floor((y - 1601) / 400);
 };
 

5/DaysInYear.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
 
@@ -8,9 +8,9 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.3
 module.exports = function DaysInYear(y) {
-	if (mod(y, 4) !== 0) {
+	if (modulo(y, 4) !== 0) {
 		return 365;
 	}
-	if (mod(y, 100) !== 0) {
+	if (modulo(y, 100) !== 0) {
 		return 366;
 	}
-	if (mod(y, 400) !== 0) {
+	if (modulo(y, 400) !== 0) {
 		return 365;
@@ -17,0 +17,0 @@ }

5/HourFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerHour = timeConstants.msPerHour;
 module.exports = function HourFromTime(t) {
-	return mod($floor(t / msPerHour), HoursPerDay);
+	return modulo(floor(t / msPerHour), HoursPerDay);
 };

5/MakeDay.js

@@ -5,6 +5,4 @@ 'use strict';
 
-var $floor = GetIntrinsic('%Math.floor%');
 var $DateUTC = GetIntrinsic('%Date.UTC%');
 
-var mod = require('../helpers/mod');
 var $isFinite = require('../helpers/isFinite');
@@ -14,2 +12,4 @@
 var Day = require('./Day');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var MonthFromTime = require('./MonthFromTime');
@@ -28,4 +28,4 @@ var ToInteger = require('./ToInteger');
 	var dt = ToInteger(date);
-	var ym = y + $floor(m / 12);
-	var mn = mod(m, 12);
+	var ym = y + floor(m / 12);
+	var mn = modulo(m, 12);
 	var t = $DateUTC(ym, mn, 1);
@@ -32,0 +32,0 @@ if (YearFromTime(t) !== ym || MonthFromTime(t) !== mn || DateFromTime(t) !== 1) {

5/MinFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerMinute = timeConstants.msPerMinute;
 module.exports = function MinFromTime(t) {
-	return mod($floor(t / msPerMinute), MinutesPerHour);
+	return modulo(floor(t / msPerMinute), MinutesPerHour);
 };

5/msFromTime.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerSecond = require('../helpers/timeConstants').msPerSecond;
@@ -9,3 +10,3 @@
 module.exports = function msFromTime(t) {
-	return mod(t, msPerSecond);
+	return modulo(t, msPerSecond);
 };

5/SecFromTime.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var floor = require('./floor');
+var modulo = require('./modulo');
 
-var $floor = GetIntrinsic('%Math.floor%');
-
-var mod = require('../helpers/mod');
 var timeConstants = require('../helpers/timeConstants');
@@ -15,3 +13,3 @@ var msPerSecond = timeConstants.msPerSecond;
 module.exports = function SecFromTime(t) {
-	return mod($floor(t / msPerSecond), SecondsPerMinute);
+	return modulo(floor(t / msPerSecond), SecondsPerMinute);
 };

5/TimeClip.js

@@ -7,6 +7,6 @@ 'use strict';
 var $Number = GetIntrinsic('%Number%');
-var $abs = GetIntrinsic('%Math.abs%');
 
 var $isFinite = require('../helpers/isFinite');
 
+var abs = require('./abs');
 var ToNumber = require('./ToNumber');
@@ -17,3 +17,3 @@
 module.exports = function TimeClip(time) {
-	if (!$isFinite(time) || $abs(time) > 8.64e15) {
+	if (!$isFinite(time) || abs(time) > 8.64e15) {
 		return NaN;
@@ -20,0 +20,0 @@ }

5/TimeWithinDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
+var modulo = require('./modulo');
+
 var msPerDay = require('../helpers/timeConstants').msPerDay;
@@ -9,4 +10,4 @@
 module.exports = function TimeWithinDay(t) {
-	return mod(t, msPerDay);
+	return modulo(t, msPerDay);
 };
 

5/ToInteger.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
+var abs = require('./abs');
+var floor = require('./floor');
+var ToNumber = require('./ToNumber');
 
-var $Math = GetIntrinsic('%Math%');
-
-var ToNumber = require('./ToNumber');
 var $isNaN = require('../helpers/isNaN');
@@ -12,5 +11,2 @@ var $isFinite = require('../helpers/isFinite');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 // http://www.ecma-international.org/ecma-262/5.1/#sec-9.4
@@ -22,3 +18,3 @@
 	if (number === 0 || !$isFinite(number)) { return number; }
-	return $sign(number) * $floor($abs(number));
+	return $sign(number) * floor(abs(number));
 };

5/ToPropertyDescriptor.js

@@ -36,3 +36,3 @@ 'use strict';
 		if (typeof getter !== 'undefined' && !IsCallable(getter)) {
-			throw new TypeError('getter must be a function');
+			throw new $TypeError('getter must be a function');
 		}
@@ -39,0 +39,0 @@ desc['[[Get]]'] = getter;

5/ToUint16.js

 'use strict';
 
-var GetIntrinsic = require('../GetIntrinsic');
-
-var $Math = GetIntrinsic('%Math%');
-
+var abs = require('./abs');
+var floor = require('./floor');
+var modulo = require('./modulo');
 var ToNumber = require('./ToNumber');
@@ -12,7 +11,3 @@
 var $sign = require('../helpers/sign');
-var $mod = require('../helpers/mod');
 
-var $floor = $Math.floor;
-var $abs = $Math.abs;
-
 // http://www.ecma-international.org/ecma-262/5.1/#sec-9.7
@@ -23,4 +18,4 @@
 	if ($isNaN(number) || number === 0 || !$isFinite(number)) { return 0; }
-	var posInt = $sign(number) * $floor($abs(number));
-	return $mod(posInt, 0x10000);
+	var posInt = $sign(number) * floor(abs(number));
+	return modulo(posInt, 0x10000);
 };

5/WeekDay.js

 'use strict';
 
-var mod = require('../helpers/mod');
-
 var Day = require('./Day');
+var modulo = require('./modulo');
 
@@ -10,3 +9,3 @@ // https://ecma-international.org/ecma-262/5.1/#sec-15.9.1.6
 module.exports = function WeekDay(t) {
-	return mod(Day(t) + 4, 7);
+	return modulo(Day(t) + 4, 7);
 };

CHANGELOG.md

@@ -0,1 +1,18 @@
+1.18.0-next.0 / 2020-08-14
+=================
+  * [New] add `ES2020`
+  * [New] `GetIntrinsic`: add `%AggregateError%`, `%FinalizationRegistry%`, and `%WeakRef%`
+  * [New] `ES5`+: add `abs`, `floor`; use `modulo` consistently
+  * [New] `GetIntrinsic`: Cache accessed intrinsics (#98)
+  * [New] `GetIntrinsic`: Add ES201x function intrinsics (#97)
+  * [New] `ES2015`+: add `QuoteJSONString`, `OrdinaryCreateFromConstructor`
+  * [New] `ES2017`+: add `StringGetOwnProperty`
+  * [New] `ES2016`+: add `UTF16Encoding`
+  * [New] `ES2018`+: add `SetFunctionLength`, `UnicodeEscape`
+  * [New] add `isLeadingSurrogate`/`isTrailingSurrogate` helpers
+  * [Fix] `ES5`+: `ToPropertyDescriptor`: use intrinsic TypeError
+  * [Fix] `ES2018+`: `CopyDataProperties`/`NumberToString`: use intrinsic TypeError
+  * [Deps] update `is-regex`, `object-inspect`
+  * [Dev Deps] update `eslint`
+
 1.17.6 / 2020-06-13
@@ -2,0 +19,0 @@ =================

es2015.js

@@ -9,2 +9,3 @@ 'use strict';
 	'Strict Equality Comparison': require('./2015/StrictEqualityComparison'),
+	abs: require('./2015/abs'),
 	AdvanceStringIndex: require('./2015/AdvanceStringIndex'),
@@ -31,2 +32,3 @@ ArrayCreate: require('./2015/ArrayCreate'),
 	EnumerableOwnNames: require('./2015/EnumerableOwnNames'),
+	floor: require('./2015/floor'),
 	FromPropertyDescriptor: require('./2015/FromPropertyDescriptor'),
@@ -72,2 +74,3 @@ Get: require('./2015/Get'),
 	ObjectCreate: require('./2015/ObjectCreate'),
+	OrdinaryCreateFromConstructor: require('./2015/OrdinaryCreateFromConstructor'),
 	OrdinaryDefineOwnProperty: require('./2015/OrdinaryDefineOwnProperty'),
@@ -77,2 +80,3 @@ OrdinaryGetOwnProperty: require('./2015/OrdinaryGetOwnProperty'),
 	OrdinaryHasProperty: require('./2015/OrdinaryHasProperty'),
+	QuoteJSONString: require('./2015/QuoteJSONString'),
 	RegExpExec: require('./2015/RegExpExec'),
@@ -79,0 +83,0 @@ RequireObjectCoercible: require('./2015/RequireObjectCoercible'),

es2016.js

@@ -9,2 +9,3 @@ 'use strict';
 	'Strict Equality Comparison': require('./2016/StrictEqualityComparison'),
+	abs: require('./2016/abs'),
 	AdvanceStringIndex: require('./2016/AdvanceStringIndex'),
@@ -31,2 +32,3 @@ ArrayCreate: require('./2016/ArrayCreate'),
 	EnumerableOwnNames: require('./2016/EnumerableOwnNames'),
+	floor: require('./2016/floor'),
 	FromPropertyDescriptor: require('./2016/FromPropertyDescriptor'),
@@ -73,8 +75,10 @@ Get: require('./2016/Get'),
 	ObjectCreate: require('./2016/ObjectCreate'),
+	OrdinaryCreateFromConstructor: require('./2016/OrdinaryCreateFromConstructor'),
 	OrdinaryDefineOwnProperty: require('./2016/OrdinaryDefineOwnProperty'),
 	OrdinaryGetOwnProperty: require('./2016/OrdinaryGetOwnProperty'),
 	OrdinaryGetPrototypeOf: require('./2016/OrdinaryGetPrototypeOf'),
-	OrdinarySetPrototypeOf: require('./2016/OrdinarySetPrototypeOf'),
 	OrdinaryHasInstance: require('./2016/OrdinaryHasInstance'),
 	OrdinaryHasProperty: require('./2016/OrdinaryHasProperty'),
+	OrdinarySetPrototypeOf: require('./2016/OrdinarySetPrototypeOf'),
+	QuoteJSONString: require('./2016/QuoteJSONString'),
 	RegExpExec: require('./2016/RegExpExec'),
@@ -117,2 +121,3 @@ RequireObjectCoercible: require('./2016/RequireObjectCoercible'),
 	Type: require('./2016/Type'),
+	UTF16Encoding: require('./2016/UTF16Encoding'),
 	ValidateAndApplyPropertyDescriptor: require('./2016/ValidateAndApplyPropertyDescriptor'),
@@ -119,0 +124,0 @@ WeekDay: require('./2016/WeekDay'),

es2017.js

@@ -9,2 +9,3 @@ 'use strict';
 	'Strict Equality Comparison': require('./2017/StrictEqualityComparison'),
+	abs: require('./2017/abs'),
 	AdvanceStringIndex: require('./2017/AdvanceStringIndex'),
@@ -31,2 +32,3 @@ ArrayCreate: require('./2017/ArrayCreate'),
 	EnumerableOwnProperties: require('./2017/EnumerableOwnProperties'),
+	floor: require('./2017/floor'),
 	FromPropertyDescriptor: require('./2017/FromPropertyDescriptor'),
@@ -73,8 +75,10 @@ Get: require('./2017/Get'),
 	ObjectCreate: require('./2017/ObjectCreate'),
+	OrdinaryCreateFromConstructor: require('./2017/OrdinaryCreateFromConstructor'),
 	OrdinaryDefineOwnProperty: require('./2017/OrdinaryDefineOwnProperty'),
 	OrdinaryGetOwnProperty: require('./2017/OrdinaryGetOwnProperty'),
-	OrdinarySetPrototypeOf: require('./2017/OrdinarySetPrototypeOf'),
 	OrdinaryGetPrototypeOf: require('./2017/OrdinaryGetPrototypeOf'),
 	OrdinaryHasInstance: require('./2017/OrdinaryHasInstance'),
 	OrdinaryHasProperty: require('./2017/OrdinaryHasProperty'),
+	OrdinarySetPrototypeOf: require('./2017/OrdinarySetPrototypeOf'),
+	QuoteJSONString: require('./2017/QuoteJSONString'),
 	RegExpExec: require('./2017/RegExpExec'),
@@ -90,2 +94,3 @@ RequireObjectCoercible: require('./2017/RequireObjectCoercible'),
 	SpeciesConstructor: require('./2017/SpeciesConstructor'),
+	StringGetOwnProperty: require('./2017/StringGetOwnProperty'),
 	SymbolDescriptiveString: require('./2017/SymbolDescriptiveString'),
@@ -119,2 +124,3 @@ TestIntegrityLevel: require('./2017/TestIntegrityLevel'),
 	Type: require('./2017/Type'),
+	UTF16Encoding: require('./2017/UTF16Encoding'),
 	ValidateAndApplyPropertyDescriptor: require('./2017/ValidateAndApplyPropertyDescriptor'),
@@ -121,0 +127,0 @@ WeekDay: require('./2017/WeekDay'),

es2018.js

@@ -9,2 +9,3 @@ 'use strict';
 	'Strict Equality Comparison': require('./2018/StrictEqualityComparison'),
+	abs: require('./2018/abs'),
 	AdvanceStringIndex: require('./2018/AdvanceStringIndex'),
@@ -33,2 +34,3 @@ ArrayCreate: require('./2018/ArrayCreate'),
 	EnumerableOwnPropertyNames: require('./2018/EnumerableOwnPropertyNames'),
+	floor: require('./2018/floor'),
 	FromPropertyDescriptor: require('./2018/FromPropertyDescriptor'),
@@ -76,9 +78,11 @@ Get: require('./2018/Get'),
 	ObjectCreate: require('./2018/ObjectCreate'),
+	OrdinaryCreateFromConstructor: require('./2018/OrdinaryCreateFromConstructor'),
 	OrdinaryDefineOwnProperty: require('./2018/OrdinaryDefineOwnProperty'),
 	OrdinaryGetOwnProperty: require('./2018/OrdinaryGetOwnProperty'),
 	OrdinaryGetPrototypeOf: require('./2018/OrdinaryGetPrototypeOf'),
-	OrdinarySetPrototypeOf: require('./2018/OrdinarySetPrototypeOf'),
 	OrdinaryHasInstance: require('./2018/OrdinaryHasInstance'),
 	OrdinaryHasProperty: require('./2018/OrdinaryHasProperty'),
+	OrdinarySetPrototypeOf: require('./2018/OrdinarySetPrototypeOf'),
 	PromiseResolve: require('./2018/PromiseResolve'),
+	QuoteJSONString: require('./2018/QuoteJSONString'),
 	RegExpExec: require('./2018/RegExpExec'),
@@ -91,5 +95,7 @@ RequireObjectCoercible: require('./2018/RequireObjectCoercible'),
 	Set: require('./2018/Set'),
+	SetFunctionLength: require('./2018/SetFunctionLength'),
 	SetFunctionName: require('./2018/SetFunctionName'),
 	SetIntegrityLevel: require('./2018/SetIntegrityLevel'),
 	SpeciesConstructor: require('./2018/SpeciesConstructor'),
+	StringGetOwnProperty: require('./2018/StringGetOwnProperty'),
 	SymbolDescriptiveString: require('./2018/SymbolDescriptiveString'),
@@ -125,2 +131,4 @@ TestIntegrityLevel: require('./2018/TestIntegrityLevel'),
 	Type: require('./2018/Type'),
+	UnicodeEscape: require('./2018/UnicodeEscape'),
+	UTF16Encoding: require('./2018/UTF16Encoding'),
 	ValidateAndApplyPropertyDescriptor: require('./2018/ValidateAndApplyPropertyDescriptor'),
@@ -127,0 +135,0 @@ WeekDay: require('./2018/WeekDay'),

es2019.js

@@ -9,2 +9,3 @@ 'use strict';
 	'Strict Equality Comparison': require('./2019/StrictEqualityComparison'),
+	abs: require('./2019/abs'),
 	AddEntriesFromIterable: require('./2019/AddEntriesFromIterable'),
@@ -35,2 +36,3 @@ AdvanceStringIndex: require('./2019/AdvanceStringIndex'),
 	FlattenIntoArray: require('./2019/FlattenIntoArray'),
+	floor: require('./2019/floor'),
 	FromPropertyDescriptor: require('./2019/FromPropertyDescriptor'),
@@ -78,9 +80,11 @@ Get: require('./2019/Get'),
 	ObjectCreate: require('./2019/ObjectCreate'),
+	OrdinaryCreateFromConstructor: require('./2019/OrdinaryCreateFromConstructor'),
 	OrdinaryDefineOwnProperty: require('./2019/OrdinaryDefineOwnProperty'),
 	OrdinaryGetOwnProperty: require('./2019/OrdinaryGetOwnProperty'),
 	OrdinaryGetPrototypeOf: require('./2019/OrdinaryGetPrototypeOf'),
-	OrdinarySetPrototypeOf: require('./2019/OrdinarySetPrototypeOf'),
 	OrdinaryHasInstance: require('./2019/OrdinaryHasInstance'),
 	OrdinaryHasProperty: require('./2019/OrdinaryHasProperty'),
+	OrdinarySetPrototypeOf: require('./2019/OrdinarySetPrototypeOf'),
 	PromiseResolve: require('./2019/PromiseResolve'),
+	QuoteJSONString: require('./2019/QuoteJSONString'),
 	RegExpExec: require('./2019/RegExpExec'),
@@ -93,5 +97,7 @@ RequireObjectCoercible: require('./2019/RequireObjectCoercible'),
 	Set: require('./2019/Set'),
+	SetFunctionLength: require('./2019/SetFunctionLength'),
 	SetFunctionName: require('./2019/SetFunctionName'),
 	SetIntegrityLevel: require('./2019/SetIntegrityLevel'),
 	SpeciesConstructor: require('./2019/SpeciesConstructor'),
+	StringGetOwnProperty: require('./2019/StringGetOwnProperty'),
 	SymbolDescriptiveString: require('./2019/SymbolDescriptiveString'),
@@ -128,2 +134,4 @@ TestIntegrityLevel: require('./2019/TestIntegrityLevel'),
 	Type: require('./2019/Type'),
+	UnicodeEscape: require('./2019/UnicodeEscape'),
+	UTF16Encoding: require('./2019/UTF16Encoding'),
 	ValidateAndApplyPropertyDescriptor: require('./2019/ValidateAndApplyPropertyDescriptor'),
@@ -130,0 +138,0 @@ WeekDay: require('./2019/WeekDay'),

es5.js

@@ -10,2 +10,3 @@ 'use strict';
 	'Strict Equality Comparison': require('./5/StrictEqualityComparison'),
+	abs: require('./5/abs'),
 	CheckObjectCoercible: require('./5/CheckObjectCoercible'),
@@ -17,2 +18,3 @@ DateFromTime: require('./5/DateFromTime'),
 	DayWithinYear: require('./5/DayWithinYear'),
+	floor: require('./5/floor'),
 	FromPropertyDescriptor: require('./5/FromPropertyDescriptor'),
@@ -19,0 +21,0 @@ HourFromTime: require('./5/HourFromTime'),

GetIntrinsic.js

 'use strict';
 
 /* globals
+	AggregateError,
 	Atomics,
+	FinalizationRegistry,
 	SharedArrayBuffer,
+	WeakRef,
 */
@@ -10,4 +13,14 @@
 
+var $SyntaxError = SyntaxError;
+var $Function = Function;
 var $TypeError = TypeError;
 
+// eslint-disable-next-line consistent-return
+var getEvalledConstructor = function (expressionSyntax) {
+	try {
+		// eslint-disable-next-line no-new-func
+		return Function('"use strict"; return (' + expressionSyntax + ').constructor;')();
+	} catch (e) {}
+};
+
 var $gOPD = Object.getOwnPropertyDescriptor;
@@ -44,9 +57,5 @@ if ($gOPD) {
 
-var generator; // = function * () {};
-var generatorFunction = generator ? getProto(generator) : undefined;
-var asyncFn; // async function() {};
-var asyncFunction = asyncFn ? asyncFn.constructor : undefined;
-var asyncGen; // async function * () {};
-var asyncGenFunction = asyncGen ? getProto(asyncGen) : undefined;
-var asyncGenIterator = asyncGen ? asyncGen() : undefined;
+var asyncGenFunction = getEvalledConstructor('async function* () {}');
+var asyncGenFunctionPrototype = asyncGenFunction ? asyncGenFunction.prototype : undefined;
+var asyncGenPrototype = asyncGenFunctionPrototype ? asyncGenFunctionPrototype.prototype : undefined;
 
@@ -56,25 +65,16 @@ var TypedArray = typeof Uint8Array === 'undefined' ? undefined : getProto(Uint8Array);
 var INTRINSICS = {
+	'%AggregateError%': typeof AggregateError === 'undefined' ? undefined : AggregateError,
 	'%Array%': Array,
 	'%ArrayBuffer%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer,
-	'%ArrayBufferPrototype%': typeof ArrayBuffer === 'undefined' ? undefined : ArrayBuffer.prototype,
 	'%ArrayIteratorPrototype%': hasSymbols ? getProto([][Symbol.iterator]()) : undefined,
-	'%ArrayPrototype%': Array.prototype,
-	'%ArrayProto_entries%': Array.prototype.entries,
-	'%ArrayProto_forEach%': Array.prototype.forEach,
-	'%ArrayProto_keys%': Array.prototype.keys,
-	'%ArrayProto_values%': Array.prototype.values,
 	'%AsyncFromSyncIteratorPrototype%': undefined,
-	'%AsyncFunction%': asyncFunction,
-	'%AsyncFunctionPrototype%': asyncFunction ? asyncFunction.prototype : undefined,
-	'%AsyncGenerator%': asyncGen ? getProto(asyncGenIterator) : undefined,
+	'%AsyncFunction%': getEvalledConstructor('async function () {}'),
+	'%AsyncGenerator%': asyncGenFunctionPrototype,
 	'%AsyncGeneratorFunction%': asyncGenFunction,
-	'%AsyncGeneratorPrototype%': asyncGenFunction ? asyncGenFunction.prototype : undefined,
-	'%AsyncIteratorPrototype%': asyncGenIterator && hasSymbols && Symbol.asyncIterator ? asyncGenIterator[Symbol.asyncIterator]() : undefined,
+	'%AsyncIteratorPrototype%': asyncGenPrototype ? getProto(asyncGenPrototype) : undefined,
 	'%Atomics%': typeof Atomics === 'undefined' ? undefined : Atomics,
+	'%BigInt%': typeof BigInt === 'undefined' ? undefined : BigInt,
 	'%Boolean%': Boolean,
-	'%BooleanPrototype%': Boolean.prototype,
 	'%DataView%': typeof DataView === 'undefined' ? undefined : DataView,
-	'%DataViewPrototype%': typeof DataView === 'undefined' ? undefined : DataView.prototype,
 	'%Date%': Date,
-	'%DatePrototype%': Date.prototype,
 	'%decodeURI%': decodeURI,
@@ -85,21 +85,12 @@ '%decodeURIComponent%': decodeURIComponent,
 	'%Error%': Error,
-	'%ErrorPrototype%': Error.prototype,
 	'%eval%': eval, // eslint-disable-line no-eval
 	'%EvalError%': EvalError,
-	'%EvalErrorPrototype%': EvalError.prototype,
 	'%Float32Array%': typeof Float32Array === 'undefined' ? undefined : Float32Array,
-	'%Float32ArrayPrototype%': typeof Float32Array === 'undefined' ? undefined : Float32Array.prototype,
 	'%Float64Array%': typeof Float64Array === 'undefined' ? undefined : Float64Array,
-	'%Float64ArrayPrototype%': typeof Float64Array === 'undefined' ? undefined : Float64Array.prototype,
-	'%Function%': Function,
-	'%FunctionPrototype%': Function.prototype,
-	'%Generator%': generator ? getProto(generator()) : undefined,
-	'%GeneratorFunction%': generatorFunction,
-	'%GeneratorPrototype%': generatorFunction ? generatorFunction.prototype : undefined,
+	'%FinalizationRegistry%': typeof FinalizationRegistry === 'undefined' ? undefined : FinalizationRegistry,
+	'%Function%': $Function,
+	'%GeneratorFunction%': getEvalledConstructor('function* () {}'),
 	'%Int8Array%': typeof Int8Array === 'undefined' ? undefined : Int8Array,
-	'%Int8ArrayPrototype%': typeof Int8Array === 'undefined' ? undefined : Int8Array.prototype,
 	'%Int16Array%': typeof Int16Array === 'undefined' ? undefined : Int16Array,
-	'%Int16ArrayPrototype%': typeof Int16Array === 'undefined' ? undefined : Int8Array.prototype,
 	'%Int32Array%': typeof Int32Array === 'undefined' ? undefined : Int32Array,
-	'%Int32ArrayPrototype%': typeof Int32Array === 'undefined' ? undefined : Int32Array.prototype,
 	'%isFinite%': isFinite,
@@ -109,63 +100,93 @@ '%isNaN%': isNaN,
 	'%JSON%': typeof JSON === 'object' ? JSON : undefined,
-	'%JSONParse%': typeof JSON === 'object' ? JSON.parse : undefined,
 	'%Map%': typeof Map === 'undefined' ? undefined : Map,
 	'%MapIteratorPrototype%': typeof Map === 'undefined' || !hasSymbols ? undefined : getProto(new Map()[Symbol.iterator]()),
-	'%MapPrototype%': typeof Map === 'undefined' ? undefined : Map.prototype,
 	'%Math%': Math,
 	'%Number%': Number,
-	'%NumberPrototype%': Number.prototype,
 	'%Object%': Object,
-	'%ObjectPrototype%': Object.prototype,
-	'%ObjProto_toString%': Object.prototype.toString,
-	'%ObjProto_valueOf%': Object.prototype.valueOf,
 	'%parseFloat%': parseFloat,
 	'%parseInt%': parseInt,
 	'%Promise%': typeof Promise === 'undefined' ? undefined : Promise,
-	'%PromisePrototype%': typeof Promise === 'undefined' ? undefined : Promise.prototype,
-	'%PromiseProto_then%': typeof Promise === 'undefined' ? undefined : Promise.prototype.then,
-	'%Promise_all%': typeof Promise === 'undefined' ? undefined : Promise.all,
-	'%Promise_reject%': typeof Promise === 'undefined' ? undefined : Promise.reject,
-	'%Promise_resolve%': typeof Promise === 'undefined' ? undefined : Promise.resolve,
 	'%Proxy%': typeof Proxy === 'undefined' ? undefined : Proxy,
 	'%RangeError%': RangeError,
-	'%RangeErrorPrototype%': RangeError.prototype,
 	'%ReferenceError%': ReferenceError,
-	'%ReferenceErrorPrototype%': ReferenceError.prototype,
 	'%Reflect%': typeof Reflect === 'undefined' ? undefined : Reflect,
 	'%RegExp%': RegExp,
-	'%RegExpPrototype%': RegExp.prototype,
 	'%Set%': typeof Set === 'undefined' ? undefined : Set,
 	'%SetIteratorPrototype%': typeof Set === 'undefined' || !hasSymbols ? undefined : getProto(new Set()[Symbol.iterator]()),
-	'%SetPrototype%': typeof Set === 'undefined' ? undefined : Set.prototype,
 	'%SharedArrayBuffer%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer,
-	'%SharedArrayBufferPrototype%': typeof SharedArrayBuffer === 'undefined' ? undefined : SharedArrayBuffer.prototype,
 	'%String%': String,
 	'%StringIteratorPrototype%': hasSymbols ? getProto(''[Symbol.iterator]()) : undefined,
-	'%StringPrototype%': String.prototype,
 	'%Symbol%': hasSymbols ? Symbol : undefined,
-	'%SymbolPrototype%': hasSymbols ? Symbol.prototype : undefined,
-	'%SyntaxError%': SyntaxError,
-	'%SyntaxErrorPrototype%': SyntaxError.prototype,
+	'%SyntaxError%': $SyntaxError,
 	'%ThrowTypeError%': ThrowTypeError,
 	'%TypedArray%': TypedArray,
-	'%TypedArrayPrototype%': TypedArray ? TypedArray.prototype : undefined,
 	'%TypeError%': $TypeError,
-	'%TypeErrorPrototype%': $TypeError.prototype,
 	'%Uint8Array%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array,
-	'%Uint8ArrayPrototype%': typeof Uint8Array === 'undefined' ? undefined : Uint8Array.prototype,
 	'%Uint8ClampedArray%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray,
-	'%Uint8ClampedArrayPrototype%': typeof Uint8ClampedArray === 'undefined' ? undefined : Uint8ClampedArray.prototype,
 	'%Uint16Array%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array,
-	'%Uint16ArrayPrototype%': typeof Uint16Array === 'undefined' ? undefined : Uint16Array.prototype,
 	'%Uint32Array%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array,
-	'%Uint32ArrayPrototype%': typeof Uint32Array === 'undefined' ? undefined : Uint32Array.prototype,
 	'%URIError%': URIError,
-	'%URIErrorPrototype%': URIError.prototype,
 	'%WeakMap%': typeof WeakMap === 'undefined' ? undefined : WeakMap,
-	'%WeakMapPrototype%': typeof WeakMap === 'undefined' ? undefined : WeakMap.prototype,
-	'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet,
-	'%WeakSetPrototype%': typeof WeakSet === 'undefined' ? undefined : WeakSet.prototype
+	'%WeakRef%': typeof WeakRef === 'undefined' ? undefined : WeakRef,
+	'%WeakSet%': typeof WeakSet === 'undefined' ? undefined : WeakSet
 };
 
+var LEGACY_ALIASES = {
+	'%ArrayBufferPrototype%': ['ArrayBuffer', 'prototype'],
+	'%ArrayPrototype%': ['Array', 'prototype'],
+	'%ArrayProto_entries%': ['Array', 'prototype', 'entries'],
+	'%ArrayProto_forEach%': ['Array', 'prototype', 'forEach'],
+	'%ArrayProto_keys%': ['Array', 'prototype', 'keys'],
+	'%ArrayProto_values%': ['Array', 'prototype', 'values'],
+	'%AsyncFunctionPrototype%': ['AsyncFunction', 'prototype'],
+	'%AsyncGenerator%': ['AsyncGeneratorFunction', 'prototype'],
+	'%AsyncGeneratorPrototype%': ['AsyncGeneratorFunction', 'prototype', 'prototype'],
+	'%BooleanPrototype%': ['Boolean', 'prototype'],
+	'%DataViewPrototype%': ['DataView', 'prototype'],
+	'%DatePrototype%': ['Date', 'prototype'],
+	'%ErrorPrototype%': ['Error', 'prototype'],
+	'%EvalErrorPrototype%': ['EvalError', 'prototype'],
+	'%Float32ArrayPrototype%': ['Float32Array', 'prototype'],
+	'%Float64ArrayPrototype%': ['Float64Array', 'prototype'],
+	'%FunctionPrototype%': ['Function', 'prototype'],
+	'%Generator%': ['GeneratorFunction', 'prototype'],
+	'%GeneratorPrototype%': ['GeneratorFunction', 'prototype', 'prototype'],
+	'%Int8ArrayPrototype%': ['Int8Array', 'prototype'],
+	'%Int16ArrayPrototype%': ['Int16Array', 'prototype'],
+	'%Int32ArrayPrototype%': ['Int32Array', 'prototype'],
+	'%JSONParse%': ['JSON', 'parse'],
+	'%JSONStringify%': ['JSON', 'stringify'],
+	'%MapPrototype%': ['Map', 'prototype'],
+	'%NumberPrototype%': ['Number', 'prototype'],
+	'%ObjectPrototype%': ['Object', 'prototype'],
+	'%ObjProto_toString%': ['Object', 'prototype', 'toString'],
+	'%ObjProto_valueOf%': ['Object', 'prototype', 'valueOf'],
+	'%PromisePrototype%': ['Promise', 'prototype'],
+	'%PromiseProto_then%': ['Promise', 'prototype', 'then'],
+	'%Promise_all%': ['Promise', 'all'],
+	'%Promise_reject%': ['Promise', 'reject'],
+	'%Promise_resolve%': ['Promise', 'resolve'],
+	'%RangeErrorPrototype%': ['RangeError', 'prototype'],
+	'%ReferenceErrorPrototype%': ['ReferenceError', 'prototype'],
+	'%RegExpPrototype%': ['RegExp', 'prototype'],
+	'%SetPrototype%': ['Set', 'prototype'],
+	'%SharedArrayBufferPrototype%': ['SharedArrayBuffer', 'prototype'],
+	'%StringPrototype%': ['String', 'prototype'],
+	'%SymbolPrototype%': ['Symbol', 'prototype'],
+	'%SyntaxErrorPrototype%': ['SyntaxError', 'prototype'],
+	'%TypedArrayPrototype%': ['TypedArray', 'prototype'],
+	'%TypeErrorPrototype%': ['TypeError', 'prototype'],
+	'%Uint8ArrayPrototype%': ['Uint8Array', 'prototype'],
+	'%Uint8ClampedArrayPrototype%': ['Uint8ClampedArray', 'prototype'],
+	'%Uint16ArrayPrototype%': ['Uint16Array', 'prototype'],
+	'%Uint32ArrayPrototype%': ['Uint32Array', 'prototype'],
+	'%URIErrorPrototype%': ['URIError', 'prototype'],
+	'%WeakMapPrototype%': ['WeakMap', 'prototype'],
+	'%WeakSetPrototype%': ['WeakSet', 'prototype']
+};
+
 var bind = require('function-bind');
+var hasOwn = require('has');
+var $concat = bind.call(Function.call, Array.prototype.concat);
+var $spliceApply = bind.call(Function.apply, Array.prototype.splice);
 var $replace = bind.call(Function.call, String.prototype.replace);
@@ -179,3 +200,3 @@
 	$replace(string, rePropName, function (match, number, quote, subString) {
-		result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : (number || match);
+		result[result.length] = quote ? $replace(subString, reEscapeChar, '$1') : number || match;
 	});
@@ -187,12 +208,23 @@ return result;
 var getBaseIntrinsic = function getBaseIntrinsic(name, allowMissing) {
-	if (!(name in INTRINSICS)) {
-		throw new SyntaxError('intrinsic ' + name + ' does not exist!');
+	var intrinsicName = name;
+	var alias;
+	if (hasOwn(LEGACY_ALIASES, intrinsicName)) {
+		alias = LEGACY_ALIASES[intrinsicName];
+		intrinsicName = '%' + alias[0] + '%';
 	}
 
-	// istanbul ignore if // hopefully this is impossible to test :-)
-	if (typeof INTRINSICS[name] === 'undefined' && !allowMissing) {
-		throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!');
+	if (hasOwn(INTRINSICS, intrinsicName)) {
+		var value = INTRINSICS[intrinsicName];
+		if (typeof value === 'undefined' && !allowMissing) {
+			throw new $TypeError('intrinsic ' + name + ' exists, but is not available. Please file an issue!');
+		}
+
+		return {
+			alias: alias,
+			name: intrinsicName,
+			value: value
+		};
 	}
 
-	return INTRINSICS[name];
+	throw new $SyntaxError('intrinsic ' + name + ' does not exist!');
 };
@@ -202,22 +234,50 @@
 	if (typeof name !== 'string' || name.length === 0) {
-		throw new TypeError('intrinsic name must be a non-empty string');
+		throw new $TypeError('intrinsic name must be a non-empty string');
 	}
 	if (arguments.length > 1 && typeof allowMissing !== 'boolean') {
-		throw new TypeError('"allowMissing" argument must be a boolean');
+		throw new $TypeError('"allowMissing" argument must be a boolean');
 	}
 
 	var parts = stringToPath(name);
+	var intrinsicBaseName = parts.length > 0 ? parts[0] : '';
 
-	var value = getBaseIntrinsic('%' + (parts.length > 0 ? parts[0] : '') + '%', allowMissing);
-	for (var i = 1; i < parts.length; i += 1) {
-		if (value != null) {
+	var intrinsic = getBaseIntrinsic('%' + intrinsicBaseName + '%', allowMissing);
+	var intrinsicRealName = intrinsic.name;
+	var value = intrinsic.value;
+	var skipFurtherCaching = false;
+
+	var alias = intrinsic.alias;
+	if (alias) {
+		intrinsicBaseName = alias[0];
+		$spliceApply(parts, $concat([0, 1], alias));
+	}
+
+	for (var i = 1, isOwn = true; i < parts.length; i += 1) {
+		var part = parts[i];
+		if (part === 'constructor' || !isOwn) {
+			skipFurtherCaching = true;
+		}
+
+		intrinsicBaseName += '.' + part;
+		intrinsicRealName = '%' + intrinsicBaseName + '%';
+
+		if (hasOwn(INTRINSICS, intrinsicRealName)) {
+			value = INTRINSICS[intrinsicRealName];
+		} else if (value != null) {
 			if ($gOPD && (i + 1) >= parts.length) {
-				var desc = $gOPD(value, parts[i]);
-				if (!allowMissing && !(parts[i] in value)) {
+				var desc = $gOPD(value, part);
+				isOwn = !!desc;
+
+				if (!allowMissing && !(part in value)) {
 					throw new $TypeError('base intrinsic for ' + name + ' exists, but the property is not available.');
 				}
-				value = desc ? (desc.get || desc.value) : value[parts[i]];
+				value = isOwn ? desc.get || desc.value : value[part];
 			} else {
-				value = value[parts[i]];
+				isOwn = hasOwn(value, part);
+				value = value[part];
 			}
+
+			if (isOwn && !skipFurtherCaching) {
+				INTRINSICS[intrinsicRealName] = value;
+			}
 		}
@@ -224,0 +284,0 @@ }

index.js

@@ -11,2 +11,3 @@ 'use strict';
 var ES2019 = require('./es2019');
+var ES2020 = require('./es2020');
 
@@ -21,3 +22,4 @@ var ES = {
 	ES2018: ES2018,
-	ES2019: ES2019
+	ES2019: ES2019,
+	ES2020: ES2020
 };
@@ -24,0 +26,0 @@ assign(ES, ES5);

package.json

 {
 	"name": "es-abstract",
-	"version": "1.17.6",
+	"version": "1.18.0-next.0",
 	"author": {
@@ -57,4 +57,5 @@ "name": "Jordan Harband",
 		"is-callable": "^1.2.0",
-		"is-regex": "^1.1.0",
-		"object-inspect": "^1.7.0",
+		"is-negative-zero": "^2.0.0",
+		"is-regex": "^1.1.1",
+		"object-inspect": "^1.8.0",
 		"object-keys": "^1.1.1",
@@ -72,8 +73,12 @@ "object.assign": "^4.1.0",
 		"eclint": "^2.8.1",
-		"eslint": "^7.2.0",
+		"eslint": "^7.7.0",
 		"foreach": "^2.0.5",
 		"functions-have-names": "^1.2.1",
+		"has-bigints": "^1.0.0",
 		"has-strict-mode": "^1.0.0",
 		"in-publish": "^2.0.1",
 		"make-arrow-function": "^1.2.0",
+		"make-async-function": "^1.0.0",
+		"make-async-generator-function": "^1.0.0",
+		"make-generator-function": "^2.0.0",
 		"nyc": "^10.3.2",
@@ -80,0 +85,0 @@ "object-is": "^1.1.2",

test/es2015.js

@@ -9,3 +9,2 @@ 'use strict';
 var expectedMissing = [
-	'abs',
 	'AddRestrictedFunctionProperties',
@@ -43,3 +42,2 @@ 'AllocateArrayBuffer',
 	'EvaluateNew',
-	'floor',
 	'ForBodyEvaluation',
@@ -113,3 +111,2 @@ 'ForIn/OfBodyEvaluation',
 	'OrdinaryCallEvaluateBody',
-	'OrdinaryCreateFromConstructor',
 	'ParseModule',
@@ -124,3 +121,2 @@ 'PerformEval',
 	'PutValue',
-	'QuoteJSONString',
 	'RegExpAlloc',
@@ -127,0 +123,0 @@ 'RegExpBuiltinExec',

test/es2016.js

@@ -9,3 +9,2 @@ 'use strict';
 var expectedMissing = [
-	'abs',
 	'AddRestrictedFunctionProperties',
@@ -50,3 +49,2 @@ 'AllocateArrayBuffer',
 	'EvaluateNew',
-	'floor',
 	'ForBodyEvaluation',
@@ -120,3 +118,2 @@ 'ForIn/OfBodyEvaluation',
 	'OrdinaryCallEvaluateBody',
-	'OrdinaryCreateFromConstructor',
 	'OrdinaryDelete',
@@ -140,3 +137,2 @@ 'OrdinaryGet',
 	'PutValue',
-	'QuoteJSONString',
 	'RegExpAlloc',
@@ -169,5 +165,4 @@ 'RegExpBuiltinExec',
 	'UpdateEmpty',
-	'UTC',
+	'UTC', // depends on LocalTZA
 	'UTF16Decode',
-	'UTF16Encoding',
 	'ValidateTypedArray'
@@ -174,0 +169,0 @@ ];

test/es2017.js

@@ -9,3 +9,2 @@ 'use strict';
 var expectedMissing = [
-	'abs',
 	'AddWaiter',
@@ -63,3 +62,2 @@ 'agent-order',
 	'EventSet',
-	'floor',
 	'ForBodyEvaluation',
@@ -149,3 +147,2 @@ 'ForIn/OfBodyEvaluation',
 	'OrdinaryCallEvaluateBody',
-	'OrdinaryCreateFromConstructor',
 	'OrdinaryDelete',
@@ -170,3 +167,2 @@ 'OrdinaryGet',
 	'PutValue',
-	'QuoteJSONString',
 	'RawBytesToNumber',
@@ -201,3 +197,2 @@ 'reads-bytes-from',
 	'StringCreate',
-	'StringGetOwnProperty',
 	'Suspend',
@@ -210,5 +205,4 @@ 'TopLevelModuleEvaluationJob',
 	'UpdateEmpty',
-	'UTC',
+	'UTC', // depends on LocalTZA'UTC',
 	'UTF16Decode',
-	'UTF16Encoding',
 	'ValidateAtomicAccess',
@@ -219,3 +213,3 @@ 'ValidateSharedIntegerTypedArray',
 	'WakeWaiter',
-	'WordCharacters',
+	'WordCharacters', // depends on Canonicalize
 	'AddRestrictedFunctionProperties',
@@ -222,0 +216,0 @@ 'synchronizes-with'

test/es2018.js

@@ -9,3 +9,2 @@ 'use strict';
 var expectedMissing = [
-	'abs',
 	'AddRestrictedFunctionProperties',
@@ -74,3 +73,2 @@ 'AddWaiter',
 	'EventSet',
-	'floor',
 	'ForBodyEvaluation',
@@ -165,3 +163,2 @@ 'ForIn/OfBodyEvaluation',
 	'OrdinaryCallEvaluateBody',
-	'OrdinaryCreateFromConstructor',
 	'OrdinaryDelete',
@@ -187,3 +184,2 @@ 'OrdinaryGet',
 	'PutValue',
-	'QuoteJSONString',
 	'RawBytesToNumber',
@@ -210,3 +206,2 @@ 'reads-bytes-from',
 	'SetDefaultGlobalBindings',
-	'SetFunctionLength',
 	'SetImmutablePrototype',
@@ -220,3 +215,2 @@ 'SetRealmGlobalObject',
 	'StringCreate',
-	'StringGetOwnProperty',
 	'Suspend',
@@ -230,9 +224,7 @@ 'synchronizes-with',
 	'TypedArraySpeciesCreate',
-	'UnicodeEscape',
 	'UnicodeMatchProperty',
 	'UnicodeMatchPropertyValue',
 	'UpdateEmpty',
-	'UTC',
+	'UTC', // depends on LocalTZA'UTC',
 	'UTF16Decode',
-	'UTF16Encoding',
 	'ValidateAtomicAccess',
@@ -243,3 +235,3 @@ 'ValidateSharedIntegerTypedArray',
 	'WakeWaiter',
-	'WordCharacters'
+	'WordCharacters' // depends on Canonicalize
 ];
@@ -246,0 +238,0 @@

test/es2019.js

@@ -9,3 +9,2 @@ 'use strict';
 var expectedMissing = [
-	'abs',
 	'AddRestrictedFunctionProperties',
@@ -76,3 +75,2 @@ 'AddWaiter',
 	'ExecuteModule',
-	'floor',
 	'ForBodyEvaluation',
@@ -169,3 +167,2 @@ 'ForIn/OfBodyEvaluation',
 	'OrdinaryCallEvaluateBody',
-	'OrdinaryCreateFromConstructor',
 	'OrdinaryDelete',
@@ -191,3 +188,2 @@ 'OrdinaryGet',
 	'PutValue',
-	'QuoteJSONString',
 	'RawBytesToNumber',
@@ -214,3 +210,2 @@ 'reads-bytes-from',
 	'SetDefaultGlobalBindings',
-	'SetFunctionLength',
 	'SetImmutablePrototype',
@@ -224,3 +219,2 @@ 'SetRealmGlobalObject',
 	'StringCreate',
-	'StringGetOwnProperty',
 	'Suspend',
@@ -235,9 +229,7 @@ 'SynchronizeEventSet',
 	'TypedArraySpeciesCreate',
-	'UnicodeEscape',
 	'UnicodeMatchProperty',
 	'UnicodeMatchPropertyValue',
 	'UpdateEmpty',
-	'UTC',
+	'UTC', // depends on LocalTZA'UTC',
 	'UTF16Decode',
-	'UTF16Encoding',
 	'ValidateAtomicAccess',
@@ -248,3 +240,3 @@ 'ValidateSharedIntegerTypedArray',
 	'WakeWaiter',
-	'WordCharacters'
+	'WordCharacters' // depends on Canonicalize
 ];
@@ -251,0 +243,0 @@

test/GetIntrinsic.js

@@ -8,5 +8,12 @@ 'use strict';
 var debug = require('object-inspect');
+var generatorFns = require('make-generator-function')();
+var asyncFns = require('make-async-function').list();
+var asyncGenFns = require('make-async-generator-function')();
 
+var callBound = require('../helpers/callBound');
 var v = require('./helpers/values');
+var $gOPD = require('../helpers/getOwnPropertyDescriptor');
 
+var $isProto = callBound('%Object.prototype.isPrototypeOf%');
+
 test('export', function (t) {
@@ -84,7 +91,63 @@ t.equal(typeof GetIntrinsic, 'function', 'it is a function');
 
+	test('underscore paths are aliases for dotted paths', function (st) {
+		var original = GetIntrinsic('%ObjProto_toString%');
+
+		forEach([
+			'%Object.prototype.toString%',
+			'Object.prototype.toString',
+			'%ObjectPrototype.toString%',
+			'ObjectPrototype.toString',
+			'%ObjProto_toString%',
+			'ObjProto_toString'
+		], function (name) {
+			// eslint-disable-next-line no-extend-native
+			Object.prototype.toString = function toString() {
+				return original.apply(this, arguments);
+			};
+			st.equal(GetIntrinsic(name), original, name + ' yields original Object.prototype.toString');
+		});
+
+		// eslint-disable-next-line no-extend-native
+		Object.prototype.toString = original;
+		st.end();
+	});
+
+	test('dotted paths cache', function (st) {
+		var original = GetIntrinsic('%Object.prototype.propertyIsEnumerable%');
+
+		forEach([
+			'%Object.prototype.propertyIsEnumerable%',
+			'Object.prototype.propertyIsEnumerable',
+			'%ObjectPrototype.propertyIsEnumerable%',
+			'ObjectPrototype.propertyIsEnumerable'
+		], function (name) {
+			// eslint-disable-next-line no-extend-native
+			Object.prototype.propertyIsEnumerable = function propertyIsEnumerable() {
+				return original.apply(this, arguments);
+			};
+			st.equal(GetIntrinsic(name), original, name + ' yields cached Object.prototype.propertyIsEnumerable');
+		});
+
+		// eslint-disable-next-line no-extend-native
+		Object.prototype.propertyIsEnumerable = original;
+		st.end();
+	});
+
+	test('dotted path reports correct error', function (st) {
+		st['throws'](function () {
+			GetIntrinsic('%NonExistentIntrinsic.prototype.property%');
+		}, /%NonExistentIntrinsic%/, 'The base intrinsic of %NonExistentIntrinsic.prototype.property% is %NonExistentIntrinsic%');
+
+		st['throws'](function () {
+			GetIntrinsic('%NonExistentIntrinsicPrototype.property%');
+		}, /%NonExistentIntrinsicPrototype%/, 'The base intrinsic of %NonExistentIntrinsicPrototype.property% is %NonExistentIntrinsicPrototype%');
+
+		st.end();
+	});
+
 	t.end();
 });
 
-test('accessors', { skip: !Object.getOwnPropertyDescriptor || typeof Map !== 'function' }, function (t) {
-	var actual = Object.getOwnPropertyDescriptor(Map.prototype, 'size');
+test('accessors', { skip: !$gOPD || typeof Map !== 'function' }, function (t) {
+	var actual = $gOPD(Map.prototype, 'size');
 	t.ok(actual, 'Map.prototype.size has a descriptor');
@@ -97,1 +160,50 @@ t.equal(typeof actual.get, 'function', 'Map.prototype.size has a getter function');
 });
+
+test('generator functions', { skip: !generatorFns.length }, function (t) {
+	var $GeneratorFunction = GetIntrinsic('%GeneratorFunction%');
+	var $GeneratorFunctionPrototype = GetIntrinsic('%Generator%');
+	var $GeneratorPrototype = GetIntrinsic('%GeneratorPrototype%');
+
+	forEach(generatorFns, function (genFn) {
+		var fnName = genFn.name;
+		fnName = fnName ? "'" + fnName + "'" : 'genFn';
+
+		t.ok(genFn instanceof $GeneratorFunction, fnName + ' instanceof %GeneratorFunction%');
+		t.ok($isProto($GeneratorFunctionPrototype, genFn), '%Generator% is prototype of ' + fnName);
+		t.ok($isProto($GeneratorPrototype, genFn.prototype), '%GeneratorPrototype% is prototype of ' + fnName + '.prototype');
+	});
+
+	t.end();
+});
+
+test('async functions', { skip: !asyncFns.length }, function (t) {
+	var $AsyncFunction = GetIntrinsic('%AsyncFunction%');
+	var $AsyncFunctionPrototype = GetIntrinsic('%AsyncFunctionPrototype%');
+
+	forEach(asyncFns, function (asyncFn) {
+		var fnName = asyncFn.name;
+		fnName = fnName ? "'" + fnName + "'" : 'asyncFn';
+
+		t.ok(asyncFn instanceof $AsyncFunction, fnName + ' instanceof %AsyncFunction%');
+		t.ok($isProto($AsyncFunctionPrototype, asyncFn), '%AsyncFunctionPrototype% is prototype of ' + fnName);
+	});
+
+	t.end();
+});
+
+test('async generator functions', { skip: !asyncGenFns.length }, function (t) {
+	var $AsyncGeneratorFunction = GetIntrinsic('%AsyncGeneratorFunction%');
+	var $AsyncGeneratorFunctionPrototype = GetIntrinsic('%AsyncGenerator%');
+	var $AsyncGeneratorPrototype = GetIntrinsic('%AsyncGeneratorPrototype%');
+
+	forEach(asyncGenFns, function (asyncGenFn) {
+		var fnName = asyncGenFn.name;
+		fnName = fnName ? "'" + fnName + "'" : 'asyncGenFn';
+
+		t.ok(asyncGenFn instanceof $AsyncGeneratorFunction, fnName + ' instanceof %AsyncGeneratorFunction%');
+		t.ok($isProto($AsyncGeneratorFunctionPrototype, asyncGenFn), '%AsyncGenerator% is prototype of ' + fnName);
+		t.ok($isProto($AsyncGeneratorPrototype, asyncGenFn.prototype), '%AsyncGeneratorPrototype% is prototype of ' + fnName + '.prototype');
+	});
+
+	t.end();
+});

test/helpers/values.js

@@ -6,2 +6,3 @@ 'use strict';
 var hasSymbols = require('has-symbols')();
+var hasBigInts = require('has-bigints')();
 
@@ -23,2 +24,3 @@ var coercibleObject = { valueOf: function () { return 3; }, toString: function () { return 42; } };
 var nonIntegerNumbers = [-1.3, 0.2, 1.8, 1 / 3];
+var integerNumbers = [1, 7, 42, 1e17];
 var zeroes = [0, -0];
@@ -30,7 +32,8 @@ var infinities = [Infinity, -Infinity];
 var symbols = hasSymbols ? [Symbol.iterator, Symbol('foo')] : [];
-var nonSymbolPrimitives = [].concat(nullPrimitives, booleans, strings, numbers);
+var bigints = hasBigInts ? [BigInt(42), BigInt(0)] : [];
+var nonSymbolPrimitives = [].concat(nullPrimitives, booleans, strings, numbers, bigints);
 var nonNumberPrimitives = [].concat(nullPrimitives, booleans, strings, symbols);
-var nonNullPrimitives = [].concat(booleans, strings, numbers, symbols);
+var nonNullPrimitives = [].concat(booleans, strings, numbers, symbols, bigints);
 var nonUndefinedPrimitives = [].concat(null, nonNullPrimitives);
-var nonStrings = [].concat(nullPrimitives, booleans, numbers, symbols, objects);
+var nonStrings = [].concat(nullPrimitives, booleans, numbers, symbols, objects, bigints);
 var primitives = [].concat(nullPrimitives, nonNullPrimitives);
@@ -45,2 +48,3 @@ var nonPropertyKeys = [].concat(nullPrimitives, booleans, numbers, objects);
 var nonArrays = [].concat(nonFunctions);
+var nonBigInts = [].concat(nonNumberPrimitives, numbers);
 
@@ -69,33 +73,35 @@ var descriptors = {
 module.exports = {
+	booleans: booleans,
+	coercibleFnObject: coercibleFnObject,
 	coercibleObject: coercibleObject,
-	coercibleFnObject: coercibleFnObject,
-	valueOfOnlyObject: valueOfOnlyObject,
-	toStringOnlyObject: toStringOnlyObject,
-	uncoercibleObject: uncoercibleObject,
-	uncoercibleFnObject: uncoercibleFnObject,
-	objects: objects,
+	falsies: falsies,
+	hasSymbols: hasSymbols,
+	infinities: infinities,
+	integerNumbers: integerNumbers,
+	nonArrays: nonArrays,
+	nonBigInts: nonBigInts,
+	nonBooleans: nonBooleans,
 	nonFunctions: nonFunctions,
-	nonArrays: nonArrays,
+	nonIntegerNumbers: nonIntegerNumbers,
+	nonNullPrimitives: nonNullPrimitives,
+	nonNumberPrimitives: nonNumberPrimitives,
+	nonNumbers: nonNumberPrimitives.concat(objects),
+	nonPropertyKeys: nonPropertyKeys,
+	nonStrings: nonStrings,
+	nonSymbolPrimitives: nonSymbolPrimitives,
+	nonUndefinedPrimitives: nonUndefinedPrimitives,
 	nullPrimitives: nullPrimitives,
 	numbers: numbers,
-	zeroes: zeroes,
-	infinities: infinities,
+	objects: objects,
+	primitives: primitives,
+	propertyKeys: propertyKeys,
 	strings: strings,
-	booleans: booleans,
 	symbols: symbols,
-	hasSymbols: hasSymbols,
-	nonSymbolPrimitives: nonSymbolPrimitives,
-	nonNumberPrimitives: nonNumberPrimitives,
-	nonNullPrimitives: nonNullPrimitives,
-	nonUndefinedPrimitives: nonUndefinedPrimitives,
-	nonStrings: nonStrings,
-	nonNumbers: nonNumberPrimitives.concat(objects),
-	nonIntegerNumbers: nonIntegerNumbers,
-	primitives: primitives,
-	nonPropertyKeys: nonPropertyKeys,
-	propertyKeys: propertyKeys,
-	nonBooleans: nonBooleans,
-	falsies: falsies,
+	timestamps: timestamps,
+	toStringOnlyObject: toStringOnlyObject,
 	truthies: truthies,
-	timestamps: timestamps,
+	uncoercibleFnObject: uncoercibleFnObject,
+	uncoercibleObject: uncoercibleObject,
+	valueOfOnlyObject: valueOfOnlyObject,
+	zeroes: zeroes,
 	bothDescriptor: function () {
@@ -102,0 +108,0 @@ return { '[[Get]]': function () {}, '[[Value]]': true };

test/index.js

@@ -12,3 +12,3 @@ 'use strict';
 test('exposed properties', function (t) {
-	t.deepEqual(ESkeys, ES6keys.concat(['ES2019', 'ES2018', 'ES2017', 'ES7', 'ES2016', 'ES6', 'ES2015', 'ES5']).sort(), 'main ES object keys match ES6 keys');
+	t.deepEqual(ESkeys, ES6keys.concat(['ES2020', 'ES2019', 'ES2018', 'ES2017', 'ES7', 'ES2016', 'ES6', 'ES2015', 'ES5']).sort(), 'main ES object keys match ES6 keys');
 	t.end();
@@ -37,1 +37,2 @@ });
 require('./es2019');
+require('./es2020');

New alerts

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Found 1 instance in 1 package

Uses eval

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Package uses dynamic code execution (e.g., eval()), which is a dangerous practice. This can prevent the code from running in certain environments and increases the risk that the code may contain exploits or malicious behavior.

Found 1 instance in 1 package

No v1

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Package is not semver >=1. This means it is not stable and does not support ^ ranges.

Found 1 instance in 1 package

Fixed alerts

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Improved metrics

Total package byte prevSize

1103370

increased by20.09%

Number of package files

867

increased by26.57%

Lines of code

27176

increased by23.09%

Worsened metrics

Dependency count

12

increased by9.09%

Dev dependency count

21

increased by23.53%

Number of low quality alerts

2

increased by100%

Number of medium supply chain risk alerts

4

increased by33.33%

Dependency changes

• + Addedis-negative-zero@^2.0.0

• + Addedis-negative-zero@2.0.3(transitive)

• Updatedis-regex@^1.1.1

• Updatedobject-inspect@^1.8.0