@tempest/flatten/dist/tempest-flatten.min.js

flatten operator for tempest

(function(global,factory){typeof exports==="object"&&typeof module!=="undefined"?factory(exports,require("@tempest/core")):typeof define==="function"&&define.amd?define(["exports","@tempest/core"],factory):factory(global.tempestFlatten=global.tempestFlatten||{},global.tempestCore)})(this,function(exports,_tempest_core){"use strict";function flatten(stream){return new _tempest_core.Stream(new Flatten(stream.source))}var emptyDisposable={dispose:function(){return void 0}};var Flatten=function Flatten(source){this.source=source};Flatten.prototype.run=function run(sink,scheduler){var flattenSink=new FlattenSink(sink,scheduler);var disposable=this.source.run(flattenSink,scheduler);return{dispose:function dispose(){flattenSink.dispose();disposable.dispose()}}};var FlattenSink=function FlattenSink(sink,scheduler){this.sink=sink;this.scheduler=scheduler;this.current=null;this.ended=false};FlattenSink.prototype.event=function event(time,value){this._disposeCurrent(time);this.current=new Segment(time,Infinity,this,this.sink);this.current.disposable=value.source.run(this.current,this.scheduler)};FlattenSink.prototype.error=function error(time,err){this.ended=true;this.sink.error(time,err)};FlattenSink.prototype.end=function end(time){this.ended=true;this._checkEnd(time,void 0)};FlattenSink.prototype.dispose=function dispose(){return this._disposeCurrent(0)};FlattenSink.prototype._disposeCurrent=function _disposeCurrent(time){if(this.current!==null){return this.current._dispose(time)}};FlattenSink.prototype._disposeInner=function _disposeInner(time,inner){inner._dispose(time);if(inner===this.current){this.current=null}};FlattenSink.prototype._checkEnd=function _checkEnd(time,value){if(this.ended&&this.current===null){this.sink.end(time,value)}};FlattenSink.prototype._endInner=function _endInner(time,value,inner){this._disposeInner(time,inner);this._checkEnd(time,value)};FlattenSink.prototype._errorInner=function _errorInner(time,err,inner){this._disposeInner(time,inner);this.sink.error(time,err)};var Segment=function Segment(min,max,outer,sink){this.min=min;this.max=max;this.outer=outer;this.sink=sink;this.disposable=emptyDisposable};Segment.prototype.event=function event(time,value){if(time<this.max){this.sink.event(Math.max(time,this.min),value)}};Segment.prototype.error=function error(time,err){this.outer._errorInner(Math.max(time,this.min),err,this)};Segment.prototype.end=function end(time,value){this.outer._endInner(Math.max(time,this.min),value,this)};Segment.prototype._dispose=function _dispose(time){this.max=time;try{this.disposable.dispose()}catch(e){this.sink.error(time,e)}};exports.flatten=flatten;exports.Flatten=Flatten;Object.defineProperty(exports,"__esModule",{value:true})});