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- 'use strict';
- var GetIntrinsic = require('get-intrinsic');
- var $EvalError = GetIntrinsic('%EvalError%');
- var DayWithinYear = require('./DayWithinYear');
- var InLeapYear = require('./InLeapYear');
- var MonthFromTime = require('./MonthFromTime');
- // https://262.ecma-international.org/5.1/#sec-15.9.1.5
- module.exports = function DateFromTime(t) {
- var m = MonthFromTime(t);
- var d = DayWithinYear(t);
- if (m === 0) {
- return d + 1;
- }
- if (m === 1) {
- return d - 30;
- }
- var leap = InLeapYear(t);
- if (m === 2) {
- return d - 58 - leap;
- }
- if (m === 3) {
- return d - 89 - leap;
- }
- if (m === 4) {
- return d - 119 - leap;
- }
- if (m === 5) {
- return d - 150 - leap;
- }
- if (m === 6) {
- return d - 180 - leap;
- }
- if (m === 7) {
- return d - 211 - leap;
- }
- if (m === 8) {
- return d - 242 - leap;
- }
- if (m === 9) {
- return d - 272 - leap;
- }
- if (m === 10) {
- return d - 303 - leap;
- }
- if (m === 11) {
- return d - 333 - leap;
- }
- throw new $EvalError('Assertion failed: MonthFromTime returned an impossible value: ' + m);
- };
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