molstar
Version:
A comprehensive macromolecular library.
64 lines (63 loc) • 2.48 kB
JavaScript
;
/**
* Copyright (c) 2017-2018 mol* contributors, licensed under MIT, See LICENSE file for more info.
*
* @author David Sehnal <david.sehnal@gmail.com>
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.Task = void 0;
const observable_1 = require("./execution/observable");
const synchronous_1 = require("./execution/synchronous");
const id_factory_1 = require("../mol-util/id-factory");
var Task;
(function (Task) {
class Impl {
run(observer, updateRateMs = 250) {
if (observer)
return (0, observable_1.ExecuteObservable)(this, observer, updateRateMs);
return this.f(synchronous_1.SyncRuntimeContext);
}
runAsChild(ctx, progress) {
if (ctx.isSynchronous)
return this.f(synchronous_1.SyncRuntimeContext);
return (0, observable_1.ExecuteObservableChild)(ctx, this, progress);
}
runInContext(ctx) {
if (ctx.isSynchronous)
return this.f(synchronous_1.SyncRuntimeContext);
return (0, observable_1.ExecuteInContext)(ctx, this);
}
constructor(name, f, onAbort) {
this.name = name;
this.f = f;
this.onAbort = onAbort;
this.id = getNextId();
}
}
function is(t) {
const _t = t;
return !!t && typeof _t.id === 'number' && typeof _t.name === 'string' && !!_t.run;
}
Task.is = is;
function isAbort(e) { return !!e && !!e.isAborted; }
Task.isAbort = isAbort;
function Aborted(reason) { return { isAborted: true, reason, toString() { return `Aborted${reason ? ': ' + reason : ''}`; } }; }
Task.Aborted = Aborted;
function create(name, f, onAbort) {
return new Impl(name, f, onAbort);
}
Task.create = create;
function constant(name, value) { return create(name, async (ctx) => value); }
Task.constant = constant;
function empty() { return create('', async (ctx) => { }); }
Task.empty = empty;
function fail(name, reason) { return create(name, async (ctx) => { throw new Error(reason); }); }
Task.fail = fail;
function resolveInContext(object, ctx) {
if (is(object))
return ctx ? object.runInContext(ctx) : object.run();
return object;
}
Task.resolveInContext = resolveInContext;
const getNextId = (0, id_factory_1.idFactory)(0, 0x3fffffff);
})(Task || (exports.Task = Task = {}));