c-uview-plus/libs/luch-request/core/InterceptorManager.js

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'use strict'

function InterceptorManager() {
    this.handlers = []
}

/**
 * Add a new interceptor to the stack
 *
 * @param {Function} fulfilled The function to handle `then` for a `Promise`
 * @param {Function} rejected The function to handle `reject` for a `Promise`
 *
 * @return {Number} An ID used to remove interceptor later
 */
InterceptorManager.prototype.use = function use(fulfilled, rejected) {
    this.handlers.push({
        fulfilled,
        rejected
    })
    return this.handlers.length - 1
}

/**
 * Remove an interceptor from the stack
 *
 * @param {Number} id The ID that was returned by `use`
 */
InterceptorManager.prototype.eject = function eject(id) {
    if (this.handlers[id]) {
        this.handlers[id] = null
    }
}

/**
 * Iterate over all the registered interceptors
 *
 * This method is particularly useful for skipping over any
 * interceptors that may have become `null` calling `eject`.
 *
 * @param {Function} fn The function to call for each interceptor
 */
InterceptorManager.prototype.forEach = function forEach(fn) {
    this.handlers.forEach((h) => {
        if (h !== null) {
            fn(h)
        }
    })
}

export default InterceptorManager