implab/implabjs-core Files · src/main/ts/ObservableValue.ts

StringBuilder, TextWriter, ConsoleWriter tests

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             ObservableValue.ts
        
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             / src / main / ts / ObservableValue.ts
          
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        cin
    
Added ObservableValue...

              r80
            
      import { Observable } from "./Observable";

      import { IDestroyable } from "./interfaces";

      import { argumentNotNull } from "./safe";

      type Handler<T> = (x: T) => void;

      export class ObservableValue<T> extends Observable<T> {

          private _value: T;

          constructor(initial: T) {

              super();

              this._value = initial;

          }

          getValue() {

              return this._value;

          }

          setValue(value: T) {

              this._value = value;

              this._notifyNext(value);

          }

          on(next: Handler<T>, error?: Handler<any>, complete?: () => void): IDestroyable {

              argumentNotNull(next, "next");

              try {

                  next(this._value);

              } catch {

                  // suppress error

              }

              return super.on(next, error, complete);

          }

      }

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cin Added ObservableValue...	r80	import { Observable } from "./Observable";
		import { IDestroyable } from "./interfaces";
		import { argumentNotNull } from "./safe";

		type Handler<T> = (x: T) => void;

		export class ObservableValue<T> extends Observable<T> {
		private _value: T;

		constructor(initial: T) {
		super();
		this._value = initial;
		}

		getValue() {
		return this._value;
		}

		setValue(value: T) {
		this._value = value;
		this._notifyNext(value);
		}

		on(next: Handler<T>, error?: Handler<any>, complete?: () => void): IDestroyable {
		argumentNotNull(next, "next");
		try {
		next(this._value);
		} catch {
		// suppress error
		}
		return super.on(next, error, complete);
		}
		}