ts-ioc-container/esm/DepKey.js

Typescript IoC container

import { Registration } from './registration/Registration';
import { Provider } from './provider/Provider';
export const isDepKey = (key) => {
    return typeof key === 'object' && key !== null && 'key' in key;
};
export const depKey = (key) => {
    const scopePredicates = [];
    const mappers = [];
    return {
        key,
        asKey: (registration) => {
            let reg = registration.pipe(...mappers).bindToKey(key);
            if (scopePredicates.length > 0) {
                reg = registration.when(...scopePredicates);
            }
            return reg;
        },
        register: (fn) => {
            let registration = new Registration(() => new Provider(fn), key).pipe(...mappers);
            if (scopePredicates.length > 0) {
                registration = registration.when(...scopePredicates);
            }
            return registration;
        },
        resolve: (s) => s.resolveOne(key),
        pipe(...values) {
            mappers.push(...values);
            return this;
        },
        when(...predicates) {
            scopePredicates.push(...predicates);
            return this;
        },
        asAlias(r) {
            return r.bindToAlias(key);
        },
    };
};