Annotations.ts
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r107 | import { Constructor } from "../interfaces"; | ||
| export interface InjectOptions { | ||||
| lazy?: boolean; | ||||
| } | ||||
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r108 | type Setter<T = any> = (v: T) => void; | ||
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r109 | type Compatible<T1, T2> = T1 extends T2 ? any : never; | ||
| type SetterType<T> = T extends (v: infer V) => void ? V : never; | ||||
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r111 | type ExtractService<K, S> = K extends keyof S ? S[K] : K; | ||
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r109 | |||
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r111 | type ExtractDependency<D, S> = D extends { $dependency: infer K } ? D extends { lazy: true } ? () => ExtractService<K, S> : ExtractService<K, S> : VisitDependency<D, S>; | ||
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r109 | |||
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r111 | type VisitDependency<D, S> = D extends {} ? { [K in keyof D]: ExtractDependency<D[K], S> } : D; | ||
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r109 | |||
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r108 | export class Builder<T, S> { | ||
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r111 | consume<P extends any[]>(...args: P) { | ||
| return <C extends new (...args: ExtractDependency<P, S>) => T>(constructor: C) => { | ||||
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r112 | return constructor as typeof constructor & { service: () => T }; | ||
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r108 | }; | ||
| } | ||||
| inject<K extends keyof S>(dependency: K) { | ||||
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r109 | // K = "bar" | ||
| // M = "setValue" | ||||
| // S[K] = Bar | ||||
| // T[M] = (value: string) => void | ||||
| // P[m] = (value: V) => void | ||||
| return <P, M extends keyof (T | P)>(target: P, memberName: M, descriptor: TypedPropertyDescriptor<Compatible<T[M], Setter<S[K]>>>) => { | ||||
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r108 | |||
| }; | ||||
| } | ||||
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r112 | cast<T2 extends T>(): Builder<T2, S> { | ||
| return this as Builder<T2, S>; | ||||
| } | ||||
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r108 | } | ||