MultiHook.js
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	/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
	*/
	"use strict";

	const Hook = require("./Hook");

	class MultiHook {
	constructor(hooks, name = undefined) {
	this.hooks = hooks;
	this.name = name;
	}

	tap(options, fn) {
	for (const hook of this.hooks) {
	hook.tap(options, fn);
	}
	}

	tapAsync(options, fn) {
	for (const hook of this.hooks) {
	hook.tapAsync(options, fn);
	}
	}

	tapPromise(options, fn) {
	for (const hook of this.hooks) {
	hook.tapPromise(options, fn);
	}
	}

	isUsed() {
	for (const hook of this.hooks) {
	if (hook.isUsed()) return true;
	}
	return false;
	}

	intercept(interceptor) {
	for (const hook of this.hooks) {
	hook.intercept(interceptor);
	}
	}

	withOptions(options) {
	return new MultiHook(
	this.hooks.map(h => h.withOptions(options)),
	this.name
	);
	}
	}

	module.exports = MultiHook;