290 lines
9.3 KiB
JavaScript
290 lines
9.3 KiB
JavaScript
'use strict';
|
|
|
|
var GetIntrinsic = require('./GetIntrinsic');
|
|
|
|
var keys = require('object-keys');
|
|
var inspect = require('object-inspect');
|
|
|
|
var ES2017 = require('./es2017');
|
|
var assign = require('./helpers/assign');
|
|
var forEach = require('./helpers/forEach');
|
|
var callBind = require('./helpers/callBind');
|
|
var every = require('./helpers/every');
|
|
var isPrefixOf = require('./helpers/isPrefixOf');
|
|
|
|
var $String = GetIntrinsic('%String%');
|
|
var $TypeError = GetIntrinsic('%TypeError%');
|
|
|
|
var callBound = require('./helpers/callBound');
|
|
var regexTester = require('./helpers/regexTester');
|
|
var $isNaN = require('./helpers/isNaN');
|
|
|
|
var $SymbolValueOf = callBound('Symbol.prototype.valueOf', true);
|
|
// var $charAt = callBound('String.prototype.charAt');
|
|
var $strSlice = callBound('String.prototype.slice');
|
|
var $indexOf = callBound('String.prototype.indexOf');
|
|
var $parseInt = parseInt;
|
|
|
|
var isDigit = regexTester(/^[0-9]$/);
|
|
|
|
var $PromiseResolve = callBound('Promise.resolve', true);
|
|
|
|
var $isEnumerable = callBound('Object.prototype.propertyIsEnumerable');
|
|
var $pushApply = callBind.apply(GetIntrinsic('%Array.prototype.push%'));
|
|
var $gOPS = $SymbolValueOf ? GetIntrinsic('%Object.getOwnPropertySymbols%') : null;
|
|
|
|
var padTimeComponent = function padTimeComponent(c, count) {
|
|
return $strSlice('00' + c, -(count || 2));
|
|
};
|
|
|
|
var weekdays = ['Sun', 'Mon', 'Tue', 'Wed', 'Thu', 'Fri', 'Sat'];
|
|
var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
|
|
|
|
var OwnPropertyKeys = function OwnPropertyKeys(ES, source) {
|
|
var ownKeys = keys(source);
|
|
if ($gOPS) {
|
|
$pushApply(ownKeys, $gOPS(source));
|
|
}
|
|
return ownKeys;
|
|
};
|
|
|
|
var ES2018 = assign(assign({}, ES2017), {
|
|
EnumerableOwnPropertyNames: ES2017.EnumerableOwnProperties,
|
|
|
|
// https://ecma-international.org/ecma-262/9.0/#sec-thissymbolvalue
|
|
thisSymbolValue: function thisSymbolValue(value) {
|
|
if (!$SymbolValueOf) {
|
|
throw new SyntaxError('Symbols are not supported; thisSymbolValue requires that `value` be a Symbol or a Symbol object');
|
|
}
|
|
if (this.Type(value) === 'Symbol') {
|
|
return value;
|
|
}
|
|
return $SymbolValueOf(value);
|
|
},
|
|
|
|
// https://www.ecma-international.org/ecma-262/9.0/#sec-isstringprefix
|
|
IsStringPrefix: function IsStringPrefix(p, q) {
|
|
if (this.Type(p) !== 'String') {
|
|
throw new TypeError('Assertion failed: "p" must be a String');
|
|
}
|
|
|
|
if (this.Type(q) !== 'String') {
|
|
throw new TypeError('Assertion failed: "q" must be a String');
|
|
}
|
|
|
|
return isPrefixOf(p, q);
|
|
/*
|
|
if (p === q || p === '') {
|
|
return true;
|
|
}
|
|
|
|
var pLength = p.length;
|
|
var qLength = q.length;
|
|
if (pLength >= qLength) {
|
|
return false;
|
|
}
|
|
|
|
// assert: pLength < qLength
|
|
|
|
for (var i = 0; i < pLength; i += 1) {
|
|
if ($charAt(p, i) !== $charAt(q, i)) {
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
*/
|
|
},
|
|
|
|
// https://www.ecma-international.org/ecma-262/9.0/#sec-tostring-applied-to-the-number-type
|
|
NumberToString: function NumberToString(m) {
|
|
if (this.Type(m) !== 'Number') {
|
|
throw new TypeError('Assertion failed: "m" must be a String');
|
|
}
|
|
|
|
return $String(m);
|
|
},
|
|
|
|
// https://www.ecma-international.org/ecma-262/9.0/#sec-copydataproperties
|
|
CopyDataProperties: function CopyDataProperties(target, source, excludedItems) {
|
|
if (this.Type(target) !== 'Object') {
|
|
throw new TypeError('Assertion failed: "target" must be an Object');
|
|
}
|
|
|
|
if (!this.IsArray(excludedItems)) {
|
|
throw new TypeError('Assertion failed: "excludedItems" must be a List of Property Keys');
|
|
}
|
|
for (var i = 0; i < excludedItems.length; i += 1) {
|
|
if (!this.IsPropertyKey(excludedItems[i])) {
|
|
throw new TypeError('Assertion failed: "excludedItems" must be a List of Property Keys');
|
|
}
|
|
}
|
|
|
|
if (typeof source === 'undefined' || source === null) {
|
|
return target;
|
|
}
|
|
|
|
var ES = this;
|
|
|
|
var fromObj = ES.ToObject(source);
|
|
|
|
var sourceKeys = OwnPropertyKeys(ES, fromObj);
|
|
forEach(sourceKeys, function (nextKey) {
|
|
var excluded = false;
|
|
|
|
forEach(excludedItems, function (e) {
|
|
if (ES.SameValue(e, nextKey) === true) {
|
|
excluded = true;
|
|
}
|
|
});
|
|
|
|
var enumerable = $isEnumerable(fromObj, nextKey) || (
|
|
// this is to handle string keys being non-enumerable in older engines
|
|
typeof source === 'string'
|
|
&& nextKey >= 0
|
|
&& ES.IsInteger(ES.ToNumber(nextKey))
|
|
);
|
|
if (excluded === false && enumerable) {
|
|
var propValue = ES.Get(fromObj, nextKey);
|
|
ES.CreateDataProperty(target, nextKey, propValue);
|
|
}
|
|
});
|
|
|
|
return target;
|
|
},
|
|
|
|
// https://ecma-international.org/ecma-262/9.0/#sec-promise-resolve
|
|
PromiseResolve: function PromiseResolve(C, x) {
|
|
if (!$PromiseResolve) {
|
|
throw new SyntaxError('This environment does not support Promises.');
|
|
}
|
|
return $PromiseResolve(C, x);
|
|
},
|
|
|
|
// http://www.ecma-international.org/ecma-262/9.0/#sec-getsubstitution
|
|
// eslint-disable-next-line max-statements, max-params, max-lines-per-function
|
|
GetSubstitution: function GetSubstitution(matched, str, position, captures, namedCaptures, replacement) {
|
|
if (this.Type(matched) !== 'String') {
|
|
throw new $TypeError('Assertion failed: `matched` must be a String');
|
|
}
|
|
var matchLength = matched.length;
|
|
|
|
if (this.Type(str) !== 'String') {
|
|
throw new $TypeError('Assertion failed: `str` must be a String');
|
|
}
|
|
var stringLength = str.length;
|
|
|
|
if (!this.IsInteger(position) || position < 0 || position > stringLength) {
|
|
throw new $TypeError('Assertion failed: `position` must be a nonnegative integer, and less than or equal to the length of `string`, got ' + inspect(position));
|
|
}
|
|
|
|
var ES = this;
|
|
var isStringOrHole = function (capture, index, arr) { return ES.Type(capture) === 'String' || !(index in arr); };
|
|
if (!this.IsArray(captures) || !every(captures, isStringOrHole)) {
|
|
throw new $TypeError('Assertion failed: `captures` must be a List of Strings, got ' + inspect(captures));
|
|
}
|
|
|
|
if (this.Type(replacement) !== 'String') {
|
|
throw new $TypeError('Assertion failed: `replacement` must be a String');
|
|
}
|
|
|
|
var tailPos = position + matchLength;
|
|
var m = captures.length;
|
|
if (this.Type(namedCaptures) !== 'Undefined') {
|
|
namedCaptures = this.ToObject(namedCaptures); // eslint-disable-line no-param-reassign
|
|
}
|
|
|
|
var result = '';
|
|
for (var i = 0; i < replacement.length; i += 1) {
|
|
// if this is a $, and it's not the end of the replacement
|
|
var current = replacement[i];
|
|
var isLast = (i + 1) >= replacement.length;
|
|
var nextIsLast = (i + 2) >= replacement.length;
|
|
if (current === '$' && !isLast) {
|
|
var next = replacement[i + 1];
|
|
if (next === '$') {
|
|
result += '$';
|
|
i += 1;
|
|
} else if (next === '&') {
|
|
result += matched;
|
|
i += 1;
|
|
} else if (next === '`') {
|
|
result += position === 0 ? '' : $strSlice(str, 0, position - 1);
|
|
i += 1;
|
|
} else if (next === "'") {
|
|
result += tailPos >= stringLength ? '' : $strSlice(str, tailPos);
|
|
i += 1;
|
|
} else {
|
|
var nextNext = nextIsLast ? null : replacement[i + 2];
|
|
if (isDigit(next) && next !== '0' && (nextIsLast || !isDigit(nextNext))) {
|
|
// $1 through $9, and not followed by a digit
|
|
var n = $parseInt(next, 10);
|
|
// if (n > m, impl-defined)
|
|
result += (n <= m && this.Type(captures[n - 1]) === 'Undefined') ? '' : captures[n - 1];
|
|
i += 1;
|
|
} else if (isDigit(next) && (nextIsLast || isDigit(nextNext))) {
|
|
// $00 through $99
|
|
var nn = next + nextNext;
|
|
var nnI = $parseInt(nn, 10) - 1;
|
|
// if nn === '00' or nn > m, impl-defined
|
|
result += (nn <= m && this.Type(captures[nnI]) === 'Undefined') ? '' : captures[nnI];
|
|
i += 2;
|
|
} else if (next === '<') {
|
|
// eslint-disable-next-line max-depth
|
|
if (this.Type(namedCaptures) === 'Undefined') {
|
|
result += '$<';
|
|
i += 2;
|
|
} else {
|
|
var endIndex = $indexOf(replacement, '>', i);
|
|
// eslint-disable-next-line max-depth
|
|
if (endIndex > -1) {
|
|
var groupName = $strSlice(replacement, i, endIndex);
|
|
var capture = this.Get(namedCaptures, groupName);
|
|
// eslint-disable-next-line max-depth
|
|
if (this.Type(capture) !== 'Undefined') {
|
|
result += this.ToString(capture);
|
|
}
|
|
i += '$<' + groupName + '>'.length;
|
|
}
|
|
}
|
|
} else {
|
|
result += '$';
|
|
}
|
|
}
|
|
} else {
|
|
// the final $, or else not a $
|
|
result += replacement[i];
|
|
}
|
|
}
|
|
return result;
|
|
},
|
|
|
|
// https://www.ecma-international.org/ecma-262/9.0/#sec-datestring
|
|
DateString: function DateString(tv) {
|
|
if (this.Type(tv) !== 'Number' || $isNaN(tv)) {
|
|
throw new $TypeError('Assertion failed: `tv` must be a non-NaN Number');
|
|
}
|
|
var weekday = weekdays[this.WeekDay(tv)];
|
|
var month = months[this.MonthFromTime(tv)];
|
|
var day = padTimeComponent(this.DateFromTime(tv));
|
|
var year = padTimeComponent(this.YearFromTime(tv), 4);
|
|
return weekday + '\x20' + month + '\x20' + day + '\x20' + year;
|
|
},
|
|
|
|
// https://www.ecma-international.org/ecma-262/9.0/#sec-timestring
|
|
TimeString: function TimeString(tv) {
|
|
if (this.Type(tv) !== 'Number' || $isNaN(tv)) {
|
|
throw new $TypeError('Assertion failed: `tv` must be a non-NaN Number');
|
|
}
|
|
var hour = this.HourFromTime(tv);
|
|
var minute = this.MinFromTime(tv);
|
|
var second = this.SecFromTime(tv);
|
|
return padTimeComponent(hour) + ':' + padTimeComponent(minute) + ':' + padTimeComponent(second) + '\x20GMT';
|
|
}
|
|
});
|
|
|
|
delete ES2018.EnumerableOwnProperties; // replaced with EnumerableOwnPropertyNames
|
|
|
|
delete ES2018.IsPropertyDescriptor; // not an actual abstract operation
|
|
|
|
module.exports = ES2018;
|