implab/implabjs-di Files · src/main/ts/ContainerBuilder.ts

WIP service descriptors

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             ContainerBuilder.ts
        
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             / src / main / ts / ContainerBuilder.ts
          
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        cin
    
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      import { Container } from "./Container";

      import { DescriptorBuilder } from "./DescriptorBuilder";

        cin
    
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      import { containerSelfDescriptor } from "./DescriptorImpl";

      import { Descriptor, IContainerBuilder, IDescriptorBuilder, DescriptorMap, ServiceLocator, ILifetime, IDestroyable, ContainerServices, ContainerServicesConstraint } from "./interfaces";

        cin
    
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      import { emptyLifetime, LifetimeManager } from "./LifetimeManager";

        cin
    
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      import { isDestroyable, prototype } from "./traits";

        cin
    
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        cin
    
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      /**

       * Container builder used to prepare service descriptors and create a IoC container

       */

        cin
    
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      export class ContainerBuilder<S extends ContainerServicesConstraint<S>, U extends keyof S> implements

        cin
    
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          IContainerBuilder<S, U> {

        cin
    
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          private _pending = 1;

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          private readonly _services: DescriptorMap<ContainerServices<S>>;

        cin
    
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          private readonly _lifetimeManager = new LifetimeManager();

        cin
    
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          private readonly _lifetime: ILifetime<IDestroyable>;

        cin
    
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          constructor(parentServices: DescriptorMap<S> | null = null, lifetime?: ILifetime<IDestroyable>) {

        cin
    
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              this._services = {

                  ...parentServices,

                  container: containerSelfDescriptor as any,

                  childContainer: containerSelfDescriptor as any

              };

        cin
    
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              this._lifetimeManager = new LifetimeManager();

              this._lifetime = lifetime ?? emptyLifetime();

        cin
    
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          }

        cin
    
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          createServiceBuilder<K extends U>(name: K):

              IDescriptorBuilder<S, S[K], Record<never, never>, U> {

        cin
    
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              return new DescriptorBuilder(this._lifetimeManager, this._register(name), this._fail);

        cin
    
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        cin
    
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          }

        cin
    
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          build(): ServiceLocator<S> {

        cin
    
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              this._assertBuilding();

        cin
    
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              if (!this._complete())

        cin
    
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                  throw new Error("The configuration didn't complete.");

        cin
    
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        cin
    
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              const {remove, store} = this._lifetime(null);

        cin
    
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        cin
    
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              const container = new Container(this._services, this._lifetimeManager, remove);

        cin
    
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        cin
    
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              store(container);

        cin
    
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              return container;

        cin
    
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          }

        cin
    
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          private readonly _register = <K extends U>(name: K) =>

              (descriptor: Descriptor<S, S[K]>) => {

                  this._complete();

                  this._services[name] = descriptor;

              };

        cin
    
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          private readonly _fail = (ex: unknown) => {

        cin
    
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              throw ex;

        cin
    
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          };

          private _assertBuilding() {

        cin
    
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              if (!this._pending)

                  throw new Error("The descriptor builder is finalized");

        cin
    
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          }

          private _complete() {

              return !(--this._pending);

          }

      }

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cin Working on container builder	r5	import { Container } from "./Container";
		import { DescriptorBuilder } from "./DescriptorBuilder";
cin WIP service descriptors	r13	import { containerSelfDescriptor } from "./DescriptorImpl";
		import { Descriptor, IContainerBuilder, IDescriptorBuilder, DescriptorMap, ServiceLocator, ILifetime, IDestroyable, ContainerServices, ContainerServicesConstraint } from "./interfaces";
cin almost woking typings	r9	import { emptyLifetime, LifetimeManager } from "./LifetimeManager";
cin WIP lifetime services, change target to ES2018	r11	import { isDestroyable, prototype } from "./traits";
cin Working on container builder	r5
cin almost woking typings	r9	/**
		* Container builder used to prepare service descriptors and create a IoC container
		*/
cin WIP service descriptors	r13	export class ContainerBuilder<S extends ContainerServicesConstraint<S>, U extends keyof S> implements
cin almost woking typings	r9	IContainerBuilder<S, U> {
cin Working on container builder	r5
		private _pending = 1;

cin WIP service descriptors	r13	private readonly _services: DescriptorMap<ContainerServices<S>>;
cin Working on container builder	r5
		private readonly _lifetimeManager = new LifetimeManager();

cin almost woking typings	r9	private readonly _lifetime: ILifetime<IDestroyable>;

cin WIP lifetime services, change target to ES2018	r11	constructor(parentServices: DescriptorMap<S> \| null = null, lifetime?: ILifetime<IDestroyable>) {
cin WIP service descriptors	r13	this._services = {
		...parentServices,
		container: containerSelfDescriptor as any,
		childContainer: containerSelfDescriptor as any
		};
cin almost woking typings	r9	this._lifetimeManager = new LifetimeManager();
		this._lifetime = lifetime ?? emptyLifetime();
cin Working on container builder	r5	}
cin almost woking typings	r9	createServiceBuilder<K extends U>(name: K):
		IDescriptorBuilder<S, S[K], Record<never, never>, U> {
cin Working on container builder	r5
		return new DescriptorBuilder(this._lifetimeManager, this._register(name), this._fail);
cin almost woking typings	r9
cin Working on container builder	r5	}

cin almost woking typings	r9	build(): ServiceLocator<S> {
cin Working on container builder	r5	this._assertBuilding();
cin almost woking typings	r9	if (!this._complete())
cin Working on container builder	r5	throw new Error("The configuration didn't complete.");
cin almost woking typings	r9
cin WIP lifetime services	r12	const {remove, store} = this._lifetime(null);
cin almost woking typings	r9
cin WIP lifetime services	r12	const container = new Container(this._services, this._lifetimeManager, remove);
cin almost woking typings	r9
cin WIP lifetime services	r12	store(container);
cin almost woking typings	r9
		return container;
cin Working on container builder	r5	}

cin almost woking typings	r9	private readonly _register = <K extends U>(name: K) =>
		(descriptor: Descriptor<S, S[K]>) => {
		this._complete();
		this._services[name] = descriptor;
		};
cin Working on container builder	r5
		private readonly _fail = (ex: unknown) => {
cin almost woking typings	r9	throw ex;
cin Working on container builder	r5	};

		private _assertBuilding() {
cin almost woking typings	r9	if (!this._pending)
		throw new Error("The descriptor builder is finalized");
cin Working on container builder	r5	}

		private _complete() {
		return !(--this._pending);
		}

		}