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import { normalizeUnits, normalizeObjectUnits } from '../units/aliases';
import { getPrioritizedUnits } from '../units/priorities';
import { hooks } from '../utils/hooks';
import isFunction from '../utils/is-function';
import { daysInMonth } from '../units/month';
import { isLeapYear } from '../units/year';
export function makeGetSet (unit, keepTime) {
return function (value) {
if (value != null) {
set(this, unit, value);
hooks.updateOffset(this, keepTime);
return this;
} else {
return get(this, unit);
}
};
}
export function get (mom, unit) {
return mom.isValid() ?
mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
}
export function set (mom, unit, value) {
if (mom.isValid() && !isNaN(value)) {
if (unit === 'FullYear' && isLeapYear(mom.year()) && mom.month() === 1 && mom.date() === 29) {
mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value, mom.month(), daysInMonth(value, mom.month()));
}
else {
mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
}
}
}
// MOMENTS
export function stringGet (units) {
units = normalizeUnits(units);
if (isFunction(this[units])) {
return this[units]();
}
return this;
}
export function stringSet (units, value) {
if (typeof units === 'object') {
units = normalizeObjectUnits(units);
var prioritized = getPrioritizedUnits(units);
for (var i = 0; i < prioritized.length; i++) {
this[prioritized[i].unit](units[prioritized[i].unit]);
}
} else {
units = normalizeUnits(units);
if (isFunction(this[units])) {
return this[units](value);
}
}
return this;
}
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