rrule
Version:
JavaScript library for working with recurrence rules for calendar dates.
86 lines • 2.76 kB
JavaScript
/**
* This class helps us to emulate python's generators, sorta.
*/
var IterResult = /** @class */ (function () {
function IterResult(method, args) {
this.minDate = null;
this.maxDate = null;
this._result = [];
this.total = 0;
this.method = method;
this.args = args;
if (method === 'between') {
this.maxDate = args.inc
? args.before
: new Date(args.before.getTime() - 1);
this.minDate = args.inc ? args.after : new Date(args.after.getTime() + 1);
}
else if (method === 'before') {
this.maxDate = args.inc ? args.dt : new Date(args.dt.getTime() - 1);
}
else if (method === 'after') {
this.minDate = args.inc ? args.dt : new Date(args.dt.getTime() + 1);
}
}
/**
* Possibly adds a date into the result.
*
* @param {Date} date - the date isn't necessarly added to the result
* list (if it is too late/too early)
* @return {Boolean} true if it makes sense to continue the iteration
* false if we're done.
*/
IterResult.prototype.accept = function (date) {
++this.total;
var tooEarly = this.minDate && date < this.minDate;
var tooLate = this.maxDate && date > this.maxDate;
if (this.method === 'between') {
if (tooEarly)
return true;
if (tooLate)
return false;
}
else if (this.method === 'before') {
if (tooLate)
return false;
}
else if (this.method === 'after') {
if (tooEarly)
return true;
this.add(date);
return false;
}
return this.add(date);
};
/**
*
* @param {Date} date that is part of the result.
* @return {Boolean} whether we are interested in more values.
*/
IterResult.prototype.add = function (date) {
this._result.push(date);
return true;
};
/**
* 'before' and 'after' return only one date, whereas 'all'
* and 'between' an array.
* @return {Date,Array?}
*/
IterResult.prototype.getValue = function () {
var res = this._result;
switch (this.method) {
case 'all':
case 'between':
return res;
case 'before':
case 'after':
return res.length ? res[res.length - 1] : null;
}
};
IterResult.prototype.clone = function () {
return new IterResult(this.method, this.args);
};
return IterResult;
}());
export default IterResult;
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