ts-ioc-container/esm/token/SingleToken.js

Fast, lightweight TypeScript dependency injection container with a clean API, scoped lifecycles, decorators, tokens, hooks, lazy injection, customizable providers, and no global container objects.

import { InjectionToken } from './InjectionToken';
export class SingleToken extends InjectionToken {
    token;
    _getArgsFn;
    _isLazy;
    constructor(token, { getArgsFn = () => [], isLazy = false } = {}) {
        super();
        this.token = token;
        this._getArgsFn = getArgsFn;
        this._isLazy = isLazy;
    }
    select(fn) {
        return (s) => fn(this.resolve(s));
    }
    resolve(s, { args = [], lazy } = {}) {
        return s.resolve(this.token, {
            args: this._getArgsFn(s, { args }),
            lazy: this._isLazy || lazy,
        });
    }
    bindTo(r) {
        r.bindToKey(this.token);
    }
    args(...newArgs) {
        const parentFn = this._getArgsFn;
        return new SingleToken(this.token, {
            getArgsFn: (s, opts) => [...parentFn(s, opts), ...newArgs],
            isLazy: this._isLazy,
        });
    }
    argsFn(fn) {
        const parentFn = this._getArgsFn;
        return new SingleToken(this.token, {
            getArgsFn: (s, opts) => [...parentFn(s, opts), ...fn(s)],
            isLazy: this._isLazy,
        });
    }
    lazy() {
        return new SingleToken(this.token, {
            getArgsFn: this._getArgsFn,
            isLazy: true,
        });
    }
}