ContainerBuilder.ts
45 lines
| 1.6 KiB
| video/mp2t
|
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r5 | import { Container } from "./Container"; | |
| import { DescriptorBuilder } from "./DescriptorBuilder"; | |||
| import { Configurable, ConfigurableKeys, ContainerServices, Descriptor, IContainerBuilder, IDescriptorBuilder, RegistrationMap, ServiceContainer } from "./interfaces"; | |||
| import { LifetimeManager } from "./LifetimeManager"; | |||
| export class ContainerBuilder<S extends Configurable<S>> implements IContainerBuilder<S>{ | |||
| private _pending = 1; | |||
| private readonly _services: Partial<RegistrationMap<ContainerServices<S>>>; | |||
| private readonly _lifetimeManager = new LifetimeManager(); | |||
| constructor(parentServices?: object) { | |||
| this._services = Object.create(parentServices ? parentServices : null) as object; | |||
| } | |||
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r6 | createServiceBuilder<K extends keyof S>(name: K): IDescriptorBuilder<ContainerServices<S>, NonNullable<S[K]>, object, keyof S> { | |
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r5 | return new DescriptorBuilder(this._lifetimeManager, this._register(name), this._fail); | |
| } | |||
| build(): ServiceContainer<S> { | |||
| this._assertBuilding(); | |||
| if(!this._complete()) | |||
| throw new Error("The configuration didn't complete."); | |||
| return new Container(this._services, this._lifetimeManager); | |||
| } | |||
| private readonly _register = <K extends ConfigurableKeys<S>>(name: K) => (descriptor: Descriptor<S, NonNullable<S[K]>>) => { | |||
| this._complete(); | |||
| this._services[name] = descriptor; | |||
| }; | |||
| private readonly _fail = (ex: unknown) => { | |||
| }; | |||
| private _assertBuilding() { | |||
| throw new Error("The descriptor builder is finalized"); | |||
| } | |||
| private _complete() { | |||
| return !(--this._pending); | |||
| } | |||
| } |