ts-ioc-container/esm/hooks/HooksRunner.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 { createHookContext } from './HookContext';
import { getHooks, toHookFn } from './hook';
import { UnexpectedHookResultError } from '../errors/UnexpectedHookResultError';
import { promisify } from '../utils/promise';
export class HooksRunner {
    key;
    constructor(key) {
        this.key = key;
    }
    execute(target, { scope, createContext = createHookContext, mapContext = (context) => context, predicate = () => true, }) {
        const hooks = Array.from(getHooks(target, this.key).entries()).filter(([methodName]) => predicate(methodName));
        const runMethodHooks = (methodName, executions) => {
            const context = mapContext(createContext(target, scope, methodName));
            for (const execute of executions) {
                const result = execute(context);
                if (result instanceof Promise) {
                    throw new UnexpectedHookResultError(`Hook ${methodName} returned a promise, use runHooksAsync instead`);
                }
            }
        };
        for (const [methodName, executions] of hooks) {
            runMethodHooks(methodName, executions.map(toHookFn));
        }
    }
    async executeAsync(target, { scope, createContext = createHookContext, mapContext = (context) => context, predicate = () => true, }) {
        const hooks = Array.from(getHooks(target, this.key).entries()).filter(([methodName]) => predicate(methodName));
        const runMethodHooks = async (methodName, executions) => {
            const context = mapContext(createContext(target, scope, methodName));
            for (const execute of executions) {
                await promisify(execute(context));
            }
        };
        return Promise.all(hooks.map(([methodName, executions]) => runMethodHooks(methodName, executions.map(toHookFn))));
    }
}