You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
102 lines
3.4 KiB
102 lines
3.4 KiB
'use strict';
|
|
|
|
var GetIntrinsic = require('get-intrinsic');
|
|
var hasSymbols = require('has-symbols')();
|
|
|
|
var $TypeError = require('es-errors/type');
|
|
var IteratorPrototype = GetIntrinsic('%IteratorPrototype%', true);
|
|
|
|
var AdvanceStringIndex = require('./AdvanceStringIndex');
|
|
var CreateIterResultObject = require('./CreateIterResultObject');
|
|
var CreateMethodProperty = require('./CreateMethodProperty');
|
|
var Get = require('./Get');
|
|
var OrdinaryObjectCreate = require('./OrdinaryObjectCreate');
|
|
var RegExpExec = require('./RegExpExec');
|
|
var Set = require('./Set');
|
|
var ToLength = require('./ToLength');
|
|
var ToString = require('./ToString');
|
|
|
|
var isObject = require('../helpers/isObject');
|
|
|
|
var SLOT = require('internal-slot');
|
|
var setToStringTag = require('es-set-tostringtag');
|
|
|
|
var RegExpStringIterator = function RegExpStringIterator(R, S, global, fullUnicode) {
|
|
if (typeof S !== 'string') {
|
|
throw new $TypeError('`S` must be a string');
|
|
}
|
|
if (typeof global !== 'boolean') {
|
|
throw new $TypeError('`global` must be a boolean');
|
|
}
|
|
if (typeof fullUnicode !== 'boolean') {
|
|
throw new $TypeError('`fullUnicode` must be a boolean');
|
|
}
|
|
SLOT.set(this, '[[IteratingRegExp]]', R);
|
|
SLOT.set(this, '[[IteratedString]]', S);
|
|
SLOT.set(this, '[[Global]]', global);
|
|
SLOT.set(this, '[[Unicode]]', fullUnicode);
|
|
SLOT.set(this, '[[Done]]', false);
|
|
};
|
|
|
|
if (IteratorPrototype) {
|
|
RegExpStringIterator.prototype = OrdinaryObjectCreate(IteratorPrototype);
|
|
}
|
|
|
|
var RegExpStringIteratorNext = function next() {
|
|
var O = this; // eslint-disable-line no-invalid-this
|
|
if (!isObject(O)) {
|
|
throw new $TypeError('receiver must be an object');
|
|
}
|
|
if (
|
|
!(O instanceof RegExpStringIterator)
|
|
|| !SLOT.has(O, '[[IteratingRegExp]]')
|
|
|| !SLOT.has(O, '[[IteratedString]]')
|
|
|| !SLOT.has(O, '[[Global]]')
|
|
|| !SLOT.has(O, '[[Unicode]]')
|
|
|| !SLOT.has(O, '[[Done]]')
|
|
) {
|
|
throw new $TypeError('"this" value must be a RegExpStringIterator instance');
|
|
}
|
|
if (SLOT.get(O, '[[Done]]')) {
|
|
return CreateIterResultObject(undefined, true);
|
|
}
|
|
var R = SLOT.get(O, '[[IteratingRegExp]]');
|
|
var S = SLOT.get(O, '[[IteratedString]]');
|
|
var global = SLOT.get(O, '[[Global]]');
|
|
var fullUnicode = SLOT.get(O, '[[Unicode]]');
|
|
var match = RegExpExec(R, S);
|
|
if (match === null) {
|
|
SLOT.set(O, '[[Done]]', true);
|
|
return CreateIterResultObject(undefined, true);
|
|
}
|
|
if (global) {
|
|
var matchStr = ToString(Get(match, '0'));
|
|
if (matchStr === '') {
|
|
var thisIndex = ToLength(Get(R, 'lastIndex'));
|
|
var nextIndex = AdvanceStringIndex(S, thisIndex, fullUnicode);
|
|
Set(R, 'lastIndex', nextIndex, true);
|
|
}
|
|
return CreateIterResultObject(match, false);
|
|
}
|
|
SLOT.set(O, '[[Done]]', true);
|
|
return CreateIterResultObject(match, false);
|
|
};
|
|
CreateMethodProperty(RegExpStringIterator.prototype, 'next', RegExpStringIteratorNext);
|
|
|
|
if (hasSymbols) {
|
|
setToStringTag(RegExpStringIterator.prototype, 'RegExp String Iterator');
|
|
|
|
if (Symbol.iterator && typeof RegExpStringIterator.prototype[Symbol.iterator] !== 'function') {
|
|
var iteratorFn = function SymbolIterator() {
|
|
return this;
|
|
};
|
|
CreateMethodProperty(RegExpStringIterator.prototype, Symbol.iterator, iteratorFn);
|
|
}
|
|
}
|
|
|
|
// https://262.ecma-international.org/11.0/#sec-createregexpstringiterator
|
|
module.exports = function CreateRegExpStringIterator(R, S, global, fullUnicode) {
|
|
// assert R.global === global && R.unicode === fullUnicode?
|
|
return new RegExpStringIterator(R, S, global, fullUnicode);
|
|
};
|