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util: Convert CachedValue to an ES6 class.

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Signed-off-by: Anders Kaseorg <anders@zulip.com>
This commit is contained in:
Anders Kaseorg
2020-07-22 15:29:05 -07:00
committed by Tim Abbott
parent 4ad00c1aea
commit aee95ecf7e
1 changed files with 12 additions and 10 deletions
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22
static/js/util.js
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@@ -176,23 +176,25 @@ exports.array_compare = function util_array_compare(a, b) {
* which should be a function that computes the uncached value.
*/
const unassigned_value_sentinel = {};
exports.CachedValue = function (opts) {
this._value = unassigned_value_sentinel;
Object.assign(this, opts);
};
class CachedValue {
_value = unassigned_value_sentinel;
exports.CachedValue.prototype = {
get: function CachedValue_get() {
constructor(opts) {
Object.assign(this, opts);
}
get() {
if (this._value === unassigned_value_sentinel) {
this._value = this.compute_value();
}
return this._value;
},
}
reset: function CachedValue_reset() {
reset() {
this._value = unassigned_value_sentinel;
},
};
}
}
exports.CachedValue = CachedValue;
exports.find_wildcard_mentions = function (message_content) {
const mention = message_content.match(/(^|\s)(@\*{2}(all|everyone|stream)\*{2})($|\s)/);