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a=this._s.observers.indexOf(this._o);this._s.observers.splice(a,1),this._o=null}};var Yd=ca.Subject=function(a){function b(){a.call(this),this.isDisposed=!1,this.isStopped=!1,this.observers=[],this.hasError=!1}return jb(b,a),kb(b.prototype,Yb.prototype,{_subscribe:function(a){return sb(this),this.isStopped?this.hasError?(a.onError(this.error),qb):(a.onCompleted(),qb):(this.observers.push(a),new Xd(this,a))},hasObservers:function(){return sb(this),this.observers.length>0},onCompleted:function(){if(sb(this),!this.isStopped){this.isStopped=!0;for(var a=0,b=c(this.observers),d=b.length;d>a;a++)b[a].onCompleted();this.observers.length=0}},onError:function(a){if(sb(this),!this.isStopped){this.isStopped=!0,this.error=a,this.hasError=!0;for(var b=0,d=c(this.observers),e=d.length;e>b;b++)d[b].onError(a);this.observers.length=0}},onNext:function(a){if(sb(this),!this.isStopped)for(var 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