Imported Upstream version 7.6.0upstream/7.6.0

1 files changed, 54 insertions, 0 deletions

diff --git a/bower_components/moment/src/lib/duration/bubble.js b/bower_components/moment/src/lib/duration/bubble.js
new file mode 100644
index 0000000..3dae6b2
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+++ b/bower_components/moment/src/lib/duration/bubble.js
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+import absFloor from '../utils/abs-floor';
+
+export function bubble () {
+    var milliseconds = this._milliseconds;
+    var days         = this._days;
+    var months       = this._months;
+    var data         = this._data;
+    var seconds, minutes, hours, years = 0;
+
+    // The following code bubbles up values, see the tests for
+    // examples of what that means.
+    data.milliseconds = milliseconds % 1000;
+
+    seconds           = absFloor(milliseconds / 1000);
+    data.seconds      = seconds % 60;
+
+    minutes           = absFloor(seconds / 60);
+    data.minutes      = minutes % 60;
+
+    hours             = absFloor(minutes / 60);
+    data.hours        = hours % 24;
+
+    days += absFloor(hours / 24);
+
+    // Accurately convert days to years, assume start from year 0.
+    years = absFloor(daysToYears(days));
+    days -= absFloor(yearsToDays(years));
+
+    // 30 days to a month
+    // TODO (iskren): Use anchor date (like 1st Jan) to compute this.
+    months += absFloor(days / 30);
+    days   %= 30;
+
+    // 12 months -> 1 year
+    years  += absFloor(months / 12);
+    months %= 12;
+
+    data.days   = days;
+    data.months = months;
+    data.years  = years;
+
+    return this;
+}
+
+export function daysToYears (days) {
+    // 400 years have 146097 days (taking into account leap year rules)
+    return days * 400 / 146097;
+}
+
+export function yearsToDays (years) {
+    // years * 365 + absFloor(years / 4) -
+    //     absFloor(years / 100) + absFloor(years / 400);
+    return years * 146097 / 400;
+}