@loken/hierarchies
Version:
Library for working with hierarchies of identifiers and identifiable objects.
61 lines (60 loc) • 2.17 kB
JavaScript
var __typeError = (msg) => {
throw TypeError(msg);
};
var __accessCheck = (obj, member, msg) => member.has(obj) || __typeError("Cannot " + msg);
var __privateGet = (obj, member, getter) => (__accessCheck(obj, member, "read from private field"), getter ? getter.call(obj) : member.get(obj)), __privateAdd = (obj, member, value) => member.has(obj) ? __typeError("Cannot add the same private member more than once") : member instanceof WeakSet ? member.add(obj) : member.set(obj, value), __privateSet = (obj, member, value, setter) => (__accessCheck(obj, member, "write to private field"), setter ? setter.call(obj, value) : member.set(obj, value), value);
var __privateWrapper = (obj, member, setter, getter) => ({
set _(value) {
__privateSet(obj, member, value, setter);
},
get _() {
return __privateGet(obj, member, getter);
}
});
import { tryResult } from "@loken/utilities";
var _element, _index, _count, _skipped;
class SequenceSignal {
//endregion
//#region internal
constructor(options) {
//#region fields
__privateAdd(this, _element);
__privateAdd(this, _index, -1);
__privateAdd(this, _count, 0);
__privateAdd(this, _skipped, !1);
__privateSet(this, _element, options.first);
}
//#endregion
//#region ISequenceSignal
get index() {
return __privateGet(this, _index);
}
get count() {
return __privateGet(this, _count);
}
next(element) {
__privateSet(this, _element, element);
}
skip() {
__privateSet(this, _skipped, !0);
}
shouldYield() {
return !__privateGet(this, _skipped);
}
cleanup() {
__privateGet(this, _skipped) || __privateWrapper(this, _count)._++;
}
tryGetNext() {
if (__privateGet(this, _element) !== void 0) {
const element = __privateGet(this, _element);
return __privateSet(this, _skipped, !1), __privateSet(this, _element, void 0), __privateWrapper(this, _index)._++, tryResult.succeed(element);
} else
return tryResult.fail();
}
//#endregion
}
_element = new WeakMap(), _index = new WeakMap(), _count = new WeakMap(), _skipped = new WeakMap();
export {
SequenceSignal
};
//# sourceMappingURL=sequence-signal.js.map