ts-ioc-container/esm/container/AliasMap.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.

export class AliasMap {
    aliasToKeySet = new Map();
    getKeysByAlias(alias) {
        return [...(this.aliasToKeySet.get(alias) ?? [])];
    }
    setAliasesByKey(key, aliases) {
        // reset existing key's aliases
        for (const [alias, keySet] of this.aliasToKeySet) {
            keySet.delete(key);
            if (keySet.size === 0) {
                this.aliasToKeySet.delete(alias);
            }
        }
        for (const alias of aliases) {
            const dependencyKeySet = this.aliasToKeySet.get(alias) ?? new Set();
            this.aliasToKeySet.set(alias, dependencyKeySet.add(key));
        }
    }
    destroy() {
        this.aliasToKeySet.clear();
    }
}