implab/implabjs-core Files · src/ts/di/AggregateDescriptor.ts

separating configuration logic from Container

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             AggregateDescriptor.ts
        
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             / src / ts / di / AggregateDescriptor.ts
          
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      import { Descriptor, isDescriptor } from "./interfaces";

      import { ActivationContext } from "./ActivationContext";

      import { isPrimitive } from "util";

      export class AggregateDescriptor implements Descriptor {

          _value: object;

          constructor(value: object) {

              this._value = value;

          }

          activate(context: ActivationContext) {

              return this._parse(this._value, context, "$value");

          }

          // TODO: make async

          _parse(value, context: ActivationContext, path: string) {

              if (isPrimitive(value))

                  return value;

              if (isDescriptor(value))

                  return context.activate(value, path);

              if (value instanceof Array)

                  return value.map((x, i) => this._parse(x, context, `${path}[${i}]`));

              const t = {};

              for (const p of Object.keys(value))

                  t[p] = this._parse(value[p], context, `${path}.${p}`);

              return t;

          }

          toString() {

              return "@walk";

          }

      }

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				import { Descriptor, isDescriptor } from "./interfaces";
				import { ActivationContext } from "./ActivationContext";
				import { isPrimitive } from "util";

				export class AggregateDescriptor implements Descriptor {
				_value: object;

				constructor(value: object) {
				this._value = value;
				}

				activate(context: ActivationContext) {
				return this._parse(this._value, context, "$value");
				}

				// TODO: make async
				_parse(value, context: ActivationContext, path: string) {
				if (isPrimitive(value))
				return value;

				if (isDescriptor(value))
				return context.activate(value, path);

				if (value instanceof Array)
				return value.map((x, i) => this._parse(x, context, `${path}[${i}]`));

				const t = {};
				for (const p of Object.keys(value))
				t[p] = this._parse(value[p], context, `${path}.${p}`);
				return t;

				}

				toString() {
				return "@walk";
				}
				}