implab/implabjs-core Files · src/main/ts/components/AsyncComponent.ts

working on fluent configuration, di annotations removed

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r134:511bcc634d65 ioc ts support


                r134:511bcc634d65

ioc ts support

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             AsyncComponent.ts
        
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             / src / main / ts / components / AsyncComponent.ts
          
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        cin
    
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      import { Cancellation } from "../Cancellation";

      import { IAsyncComponent, ICancellation, ICancellable, IDestroyable } from "../interfaces";

      import { destroy } from "../safe";

        cin
    
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      const noop = () => void (0);

        cin
    
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      export class AsyncComponent implements IAsyncComponent, ICancellable {

        cin
    
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          _cancel: ((e: any) => void) = noop;

        cin
    
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          _completion: Promise<void> = Promise.resolve();

        cin
    
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          getCompletion() { return this._completion; }

        cin
    
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          runOperation(op: (ct: ICancellation) => any, ct: ICancellation = Cancellation.none) {

              // create inner cancellation bound to the passed cancellation token

              let h: IDestroyable;

        cin
    
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              r54
            
              const inner = new Cancellation(cancel => {

        cin
    
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                  this._cancel = cancel;

                  h = ct.register(cancel);

              });

              // TODO create cancellation source here

        cin
    
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              r54
            
              const guard = async () => {

        cin
    
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                  try {

                      await op(inner);

                  } finally {

                      // after the operation is complete we need to cleanup the

                      // resources

                      destroy(h);

        cin
    
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                      this._cancel = noop;

        cin
    
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                  }

        cin
    
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              };

        cin
    
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              return this._completion = guard();

          }

        cin
    
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          cancel(reason: any) {

        cin
    
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              this._cancel(reason);

        cin
    
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          }

        cin
    
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              r54
            
      }

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cin changed the project structure	r49	import { Cancellation } from "../Cancellation";
		import { IAsyncComponent, ICancellation, ICancellable, IDestroyable } from "../interfaces";
		import { destroy } from "../safe";

cin working on fluent configuration, di annotations removed	r134	const noop = () => void (0);

cin changed the project structure	r49	export class AsyncComponent implements IAsyncComponent, ICancellable {
cin working on fluent configuration, di annotations removed	r134	_cancel: ((e: any) => void) = noop;
cin changed the project structure	r49
		_completion: Promise<void> = Promise.resolve();

cin text/format refactoring	r54	getCompletion() { return this._completion; }
cin changed the project structure	r49
		runOperation(op: (ct: ICancellation) => any, ct: ICancellation = Cancellation.none) {
		// create inner cancellation bound to the passed cancellation token
		let h: IDestroyable;
cin text/format refactoring	r54	const inner = new Cancellation(cancel => {
cin changed the project structure	r49
		this._cancel = cancel;
		h = ct.register(cancel);
		});

		// TODO create cancellation source here
cin text/format refactoring	r54	const guard = async () => {
cin changed the project structure	r49	try {
		await op(inner);
		} finally {
		// after the operation is complete we need to cleanup the
		// resources
		destroy(h);
cin working on fluent configuration, di annotations removed	r134	this._cancel = noop;
cin changed the project structure	r49	}
cin text/format refactoring	r54	};
cin changed the project structure	r49
		return this._completion = guard();
		}

cin working on support commonjs modules format	r59	cancel(reason: any) {
cin working on fluent configuration, di annotations removed	r134	this._cancel(reason);
cin changed the project structure	r49	}
cin text/format refactoring	r54	}