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

WIP service descriptors

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             DescriptorImpl.ts
        
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                TypeScriptLexer
            
             / src / main / ts / DescriptorImpl.ts
          
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        cin
    
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      import { Descriptor, ILifetime, DepsMap, IActivationContext, DescriptorMap } from "./interfaces";

      import { each, key } from "./traits";

        cin
    
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      export interface DescriptorImplArgs<S, T> {

        cin
    
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          lifetime: ILifetime<T>;

        cin
    
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        cin
    
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          factory: (refs: Record<key, unknown>) => NonNullable<T>;

        cin
    
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        cin
    
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          cleanup?: (item: NonNullable<T>) => void;

        cin
    
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        cin
    
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          overrides?: DescriptorMap<S>;

        cin
    
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        cin
    
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          dependencies?: DepsMap<S>;

        cin
    
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      }

        cin
    
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      export const containerSelfDescriptor = <S>() => Object.freeze({

          level: 0,

          activate(context: IActivationContext<S>) {

              return context.createChildContainer();

          }

      });

        cin
    
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        cin
    
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      export class DescriptorImpl<S, T> implements Descriptor<S, T> {

        cin
    
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        cin
    
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          private readonly _overrides?: DescriptorMap<S>;

        cin
    
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        cin
    
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          private readonly _lifetime: ILifetime<T>;

        cin
    
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        cin
    
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          private readonly _factory: (refs: Record<key, unknown>) => NonNullable<T>;

          private readonly _cleanup?: (item: NonNullable<T>) => void;

        cin
    
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        cin
    
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          private readonly _deps?: DepsMap<S>;

        cin
    
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        cin
    
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          readonly hasOverrides: boolean;

        cin
    
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          constructor({ lifetime, factory, cleanup, overrides, dependencies }: DescriptorImplArgs<S, T>) {

              this._lifetime = lifetime;

              this._factory = factory;

              if (cleanup)

                  this._cleanup = cleanup;

              if (overrides)

                  this._overrides = overrides;

              if (dependencies)

                  this._deps = dependencies;

        cin
    
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              this.hasOverrides = !!overrides;

        cin
    
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          }

        cin
    
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          activate(context: IActivationContext<S>): NonNullable<T> {

        cin
    
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        cin
    
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              const { has, get, initialize, store } = this._lifetime(context);

        cin
    
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        cin
    
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              if (has())

                  return get();

              initialize();

        cin
    
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              if (this._overrides)

                  each(this._overrides, (v, k) => context.register(k, v));

        cin
    
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              r9
            
              const resolve = <K extends keyof S>({ name, lazy, ...opts }: { name: K; lazy?: boolean; default?: S[K] | null; }) => {

        cin
    
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              r4
            
                  if (lazy) {

        cin
    
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                      return "default" in opts ?

                          () => context.resolve(name, opts.default) :

                          () => context.resolve(name);

        cin
    
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              r4
            
                  } else {

        cin
    
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                      return "default" in opts ?

                          context.resolve(name, opts.default) :

                          context.resolve(name);

        cin
    
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                  }

              };

        cin
    
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        cin
    
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              const deps = this._deps;

              const refs = deps ?

        cin
    
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              r4
            
                  Object.keys(deps)

                      .map(k => {

                          const ref = deps[k];

        cin
    
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                          return typeof ref !== "object" ?

        cin
    
Removed ContextResolver, added DescriptoBuilder.wants(...), dependencies are declared statically

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                              { [k]: resolve({ name: ref }) } :

                              { [k]: resolve(ref) };

                      })

        cin
    
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                      .reduce((a, p) => ({ ...a, ...p }), {}) :

        cin
    
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                  {};

        cin
    
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        cin
    
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              try {

        cin
    
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                  // call the factory method

        cin
    
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                  const instance = (0,this._factory)(refs);

        cin
    
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                  // store the instance

                  store(instance, this._cleanup);

        cin
    
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                  return instance;

              } catch(err) {

                  context.fail(err);

              }

        cin
    
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          }

        cin
    
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        cin
    
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          toString() {

        cin
    
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              return `[object DescriptorImpl, lifetime=${String(this._lifetime)}]`;

        cin
    
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          }

      }

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cin almost woking typings	r9	import { Descriptor, ILifetime, DepsMap, IActivationContext, DescriptorMap } from "./interfaces";
		import { each, key } from "./traits";
cin working on fluent configuration	r1
cin almost woking typings	r9	export interface DescriptorImplArgs<S, T> {
cin working on fluent configuration	r1	lifetime: ILifetime<T>;
cin initial commit	r0
cin almost woking typings	r9	factory: (refs: Record<key, unknown>) => NonNullable<T>;
cin initial commit	r0
cin almost woking typings	r9	cleanup?: (item: NonNullable<T>) => void;
cin initial commit	r0
cin almost woking typings	r9	overrides?: DescriptorMap<S>;
cin Removed ContextResolver, added DescriptoBuilder.wants(...), dependencies are declared statically	r4
cin almost woking typings	r9	dependencies?: DepsMap<S>;
cin initial commit	r0	}

cin WIP service descriptors	r13	export const containerSelfDescriptor = <S>() => Object.freeze({
		level: 0,
		activate(context: IActivationContext<S>) {
		return context.createChildContainer();
		}
		});

cin working on fluent configuration	r1
cin almost woking typings	r9	export class DescriptorImpl<S, T> implements Descriptor<S, T> {
cin initial commit	r0
cin almost woking typings	r9	private readonly _overrides?: DescriptorMap<S>;
cin initial commit	r0
cin working on fluent configuration	r1	private readonly _lifetime: ILifetime<T>;
cin initial commit	r0
cin almost woking typings	r9	private readonly _factory: (refs: Record<key, unknown>) => NonNullable<T>;

		private readonly _cleanup?: (item: NonNullable<T>) => void;
cin initial commit	r0
cin almost woking typings	r9	private readonly _deps?: DepsMap<S>;
cin initial commit	r0
cin almost woking typings	r9	readonly hasOverrides: boolean;
cin Removed ContextResolver, added DescriptoBuilder.wants(...), dependencies are declared statically	r4
		constructor({ lifetime, factory, cleanup, overrides, dependencies }: DescriptorImplArgs<S, T>) {
		this._lifetime = lifetime;
		this._factory = factory;
		if (cleanup)
		this._cleanup = cleanup;
		if (overrides)
		this._overrides = overrides;
		if (dependencies)
		this._deps = dependencies;
cin almost woking typings	r9
		this.hasOverrides = !!overrides;
cin initial commit	r0	}

cin almost woking typings	r9	activate(context: IActivationContext<S>): NonNullable<T> {
cin initial commit	r0
cin WIP lifetime services	r12	const { has, get, initialize, store } = this._lifetime(context);
cin initial commit	r0
cin WIP lifetime services	r12	if (has())
		return get();

		initialize();
cin initial commit	r0
		if (this._overrides)
		each(this._overrides, (v, k) => context.register(k, v));

cin almost woking typings	r9	const resolve = <K extends keyof S>({ name, lazy, ...opts }: { name: K; lazy?: boolean; default?: S[K] \| null; }) => {
cin Removed ContextResolver, added DescriptoBuilder.wants(...), dependencies are declared statically	r4	if (lazy) {
cin WIP lifetime services, change target to ES2018	r11	return "default" in opts ?
		() => context.resolve(name, opts.default) :
		() => context.resolve(name);
cin Removed ContextResolver, added DescriptoBuilder.wants(...), dependencies are declared statically	r4	} else {
cin WIP lifetime services, change target to ES2018	r11	return "default" in opts ?
		context.resolve(name, opts.default) :
		context.resolve(name);
cin Removed ContextResolver, added DescriptoBuilder.wants(...), dependencies are declared statically	r4	}
		};
cin initial commit	r0
cin WIP lifetime services, change target to ES2018	r11	const deps = this._deps;

		const refs = deps ?
cin Removed ContextResolver, added DescriptoBuilder.wants(...), dependencies are declared statically	r4	Object.keys(deps)
		.map(k => {
		const ref = deps[k];
cin almost woking typings	r9	return typeof ref !== "object" ?
cin Removed ContextResolver, added DescriptoBuilder.wants(...), dependencies are declared statically	r4	{ [k]: resolve({ name: ref }) } :
		{ [k]: resolve(ref) };
		})
cin WIP lifetime services, change target to ES2018	r11	.reduce((a, p) => ({ ...a, ...p }), {}) :
cin almost woking typings	r9	{};
cin working on fluent configuration	r1
cin WIP lifetime services, change target to ES2018	r11	try {
cin WIP lifetime services	r12	// call the factory method
cin WIP lifetime services, change target to ES2018	r11	const instance = (0,this._factory)(refs);
cin WIP lifetime services	r12
		// store the instance
		store(instance, this._cleanup);
cin WIP lifetime services, change target to ES2018	r11	return instance;
		} catch(err) {
		context.fail(err);
		}
cin initial commit	r0	}

cin working on fluent configuration	r1
cin initial commit	r0	toString() {
cin working on fluent configuration	r1	return `[object DescriptorImpl, lifetime=${String(this._lifetime)}]`;
cin initial commit	r0	}
		}