'use strict'
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function InterceptorManager() {
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this.handlers = []
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}
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/**
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* Add a new interceptor to the stack
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*
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* @param {Function} fulfilled The function to handle `then` for a `Promise`
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* @param {Function} rejected The function to handle `reject` for a `Promise`
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*
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* @return {Number} An ID used to remove interceptor later
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*/
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InterceptorManager.prototype.use = function use(fulfilled, rejected) {
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this.handlers.push({
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fulfilled: fulfilled,
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rejected: rejected
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})
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return this.handlers.length - 1
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}
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/**
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* Remove an interceptor from the stack
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*
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* @param {Number} id The ID that was returned by `use`
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*/
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InterceptorManager.prototype.eject = function eject(id) {
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if (this.handlers[id]) {
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this.handlers[id] = null
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}
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}
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/**
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* Iterate over all the registered interceptors
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*
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* This method is particularly useful for skipping over any
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* interceptors that may have become `null` calling `eject`.
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*
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* @param {Function} fn The function to call for each interceptor
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*/
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InterceptorManager.prototype.forEach = function forEach(fn) {
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this.handlers.forEach(h => {
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if (h !== null) {
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fn(h)
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}
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})
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}
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export default InterceptorManager
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