garrettmills
1d5056b753
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44 lines
1.0 KiB
TypeScript
44 lines
1.0 KiB
TypeScript
import {AbstractFactory} from './AbstractFactory'
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import {DependencyKey, DependencyRequirement, PropertyDependency} from '../types'
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import {Collection} from '../../util'
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/**
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* A factory whose token is produced by calling a function.
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*
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* @example
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* ```typescript
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* let i = 0
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* const fact = new ClosureFactory('someName', () => {
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* i += 1
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* return i * 2
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* })
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*
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* fact.produce([], []) // => 2
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* fact.produce([], []) // => 4
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* ```
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*/
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export class ClosureFactory<T> extends AbstractFactory<T> {
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constructor(
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protected readonly name: DependencyKey,
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protected readonly token: () => T,
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) {
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super(token)
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}
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produce(): any {
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return this.token()
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}
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match(something: unknown): boolean {
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return something === this.name
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}
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getDependencyKeys(): Collection<DependencyRequirement> {
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return new Collection<DependencyRequirement>()
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}
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getInjectedProperties(): Collection<PropertyDependency> {
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return new Collection<PropertyDependency>()
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}
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}
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