source: trip-planner-front/node_modules/webpack/lib/hmr/HotModuleReplacement.runtime.js

/*
        MIT License http://www.opensource.org/licenses/mit-license.php
        Author Tobias Koppers @sokra
*/

"use strict";

var $interceptModuleExecution$ = undefined;
var $moduleCache$ = undefined;
// eslint-disable-next-line no-unused-vars
var $hmrModuleData$ = undefined;
/** @type {() => Promise}  */
var $hmrDownloadManifest$ = undefined;
var $hmrDownloadUpdateHandlers$ = undefined;
var $hmrInvalidateModuleHandlers$ = undefined;
var __webpack_require__ = undefined;

module.exports = function () {
        var currentModuleData = {};
        var installedModules = $moduleCache$;

        // module and require creation
        var currentChildModule;
        var currentParents = [];

        // status
        var registeredStatusHandlers = [];
        var currentStatus = "idle";

        // while downloading
        var blockingPromises;

        // The update info
        var currentUpdateApplyHandlers;
        var queuedInvalidatedModules;

        // eslint-disable-next-line no-unused-vars
        $hmrModuleData$ = currentModuleData;

        $interceptModuleExecution$.push(function (options) {
                var module = options.module;
                var require = createRequire(options.require, options.id);
                module.hot = createModuleHotObject(options.id, module);
                module.parents = currentParents;
                module.children = [];
                currentParents = [];
                options.require = require;
        });

        $hmrDownloadUpdateHandlers$ = {};
        $hmrInvalidateModuleHandlers$ = {};

        function createRequire(require, moduleId) {
                var me = installedModules[moduleId];
                if (!me) return require;
                var fn = function (request) {
                        if (me.hot.active) {
                                if (installedModules[request]) {
                                        var parents = installedModules[request].parents;
                                        if (parents.indexOf(moduleId) === -1) {
                                                parents.push(moduleId);
                                        }
                                } else {
                                        currentParents = [moduleId];
                                        currentChildModule = request;
                                }
                                if (me.children.indexOf(request) === -1) {
                                        me.children.push(request);
                                }
                        } else {
                                console.warn(
                                        "[HMR] unexpected require(" +
                                                request +
                                                ") from disposed module " +
                                                moduleId
                                );
                                currentParents = [];
                        }
                        return require(request);
                };
                var createPropertyDescriptor = function (name) {
                        return {
                                configurable: true,
                                enumerable: true,
                                get: function () {
                                        return require[name];
                                },
                                set: function (value) {
                                        require[name] = value;
                                }
                        };
                };
                for (var name in require) {
                        if (Object.prototype.hasOwnProperty.call(require, name) && name !== "e") {
                                Object.defineProperty(fn, name, createPropertyDescriptor(name));
                        }
                }
                fn.e = function (chunkId) {
                        return trackBlockingPromise(require.e(chunkId));
                };
                return fn;
        }

        function createModuleHotObject(moduleId, me) {
                var _main = currentChildModule !== moduleId;
                var hot = {
                        // private stuff
                        _acceptedDependencies: {},
                        _acceptedErrorHandlers: {},
                        _declinedDependencies: {},
                        _selfAccepted: false,
                        _selfDeclined: false,
                        _selfInvalidated: false,
                        _disposeHandlers: [],
                        _main: _main,
                        _requireSelf: function () {
                                currentParents = me.parents.slice();
                                currentChildModule = _main ? undefined : moduleId;
                                __webpack_require__(moduleId);
                        },

                        // Module API
                        active: true,
                        accept: function (dep, callback, errorHandler) {
                                if (dep === undefined) hot._selfAccepted = true;
                                else if (typeof dep === "function") hot._selfAccepted = dep;
                                else if (typeof dep === "object" && dep !== null) {
                                        for (var i = 0; i < dep.length; i++) {
                                                hot._acceptedDependencies[dep[i]] = callback || function () {};
                                                hot._acceptedErrorHandlers[dep[i]] = errorHandler;
                                        }
                                } else {
                                        hot._acceptedDependencies[dep] = callback || function () {};
                                        hot._acceptedErrorHandlers[dep] = errorHandler;
                                }
                        },
                        decline: function (dep) {
                                if (dep === undefined) hot._selfDeclined = true;
                                else if (typeof dep === "object" && dep !== null)
                                        for (var i = 0; i < dep.length; i++)
                                                hot._declinedDependencies[dep[i]] = true;
                                else hot._declinedDependencies[dep] = true;
                        },
                        dispose: function (callback) {
                                hot._disposeHandlers.push(callback);
                        },
                        addDisposeHandler: function (callback) {
                                hot._disposeHandlers.push(callback);
                        },
                        removeDisposeHandler: function (callback) {
                                var idx = hot._disposeHandlers.indexOf(callback);
                                if (idx >= 0) hot._disposeHandlers.splice(idx, 1);
                        },
                        invalidate: function () {
                                this._selfInvalidated = true;
                                switch (currentStatus) {
                                        case "idle":
                                                currentUpdateApplyHandlers = [];
                                                Object.keys($hmrInvalidateModuleHandlers$).forEach(function (key) {
                                                        $hmrInvalidateModuleHandlers$[key](
                                                                moduleId,
                                                                currentUpdateApplyHandlers
                                                        );
                                                });
                                                setStatus("ready");
                                                break;
                                        case "ready":
                                                Object.keys($hmrInvalidateModuleHandlers$).forEach(function (key) {
                                                        $hmrInvalidateModuleHandlers$[key](
                                                                moduleId,
                                                                currentUpdateApplyHandlers
                                                        );
                                                });
                                                break;
                                        case "prepare":
                                        case "check":
                                        case "dispose":
                                        case "apply":
                                                (queuedInvalidatedModules = queuedInvalidatedModules || []).push(
                                                        moduleId
                                                );
                                                break;
                                        default:
                                                // ignore requests in error states
                                                break;
                                }
                        },

                        // Management API
                        check: hotCheck,
                        apply: hotApply,
                        status: function (l) {
                                if (!l) return currentStatus;
                                registeredStatusHandlers.push(l);
                        },
                        addStatusHandler: function (l) {
                                registeredStatusHandlers.push(l);
                        },
                        removeStatusHandler: function (l) {
                                var idx = registeredStatusHandlers.indexOf(l);
                                if (idx >= 0) registeredStatusHandlers.splice(idx, 1);
                        },

                        //inherit from previous dispose call
                        data: currentModuleData[moduleId]
                };
                currentChildModule = undefined;
                return hot;
        }

        function setStatus(newStatus) {
                currentStatus = newStatus;
                var results = [];

                for (var i = 0; i < registeredStatusHandlers.length; i++)
                        results[i] = registeredStatusHandlers[i].call(null, newStatus);

                return Promise.all(results);
        }

        function trackBlockingPromise(promise) {
                switch (currentStatus) {
                        case "ready":
                                setStatus("prepare");
                                blockingPromises.push(promise);
                                waitForBlockingPromises(function () {
                                        return setStatus("ready");
                                });
                                return promise;
                        case "prepare":
                                blockingPromises.push(promise);
                                return promise;
                        default:
                                return promise;
                }
        }

        function waitForBlockingPromises(fn) {
                if (blockingPromises.length === 0) return fn();
                var blocker = blockingPromises;
                blockingPromises = [];
                return Promise.all(blocker).then(function () {
                        return waitForBlockingPromises(fn);
                });
        }

        function hotCheck(applyOnUpdate) {
                if (currentStatus !== "idle") {
                        throw new Error("check() is only allowed in idle status");
                }
                return setStatus("check")
                        .then($hmrDownloadManifest$)
                        .then(function (update) {
                                if (!update) {
                                        return setStatus(applyInvalidatedModules() ? "ready" : "idle").then(
                                                function () {
                                                        return null;
                                                }
                                        );
                                }

                                return setStatus("prepare").then(function () {
                                        var updatedModules = [];
                                        blockingPromises = [];
                                        currentUpdateApplyHandlers = [];

                                        return Promise.all(
                                                Object.keys($hmrDownloadUpdateHandlers$).reduce(function (
                                                        promises,
                                                        key
                                                ) {
                                                        $hmrDownloadUpdateHandlers$[key](
                                                                update.c,
                                                                update.r,
                                                                update.m,
                                                                promises,
                                                                currentUpdateApplyHandlers,
                                                                updatedModules
                                                        );
                                                        return promises;
                                                },
                                                [])
                                        ).then(function () {
                                                return waitForBlockingPromises(function () {
                                                        if (applyOnUpdate) {
                                                                return internalApply(applyOnUpdate);
                                                        } else {
                                                                return setStatus("ready").then(function () {
                                                                        return updatedModules;
                                                                });
                                                        }
                                                });
                                        });
                                });
                        });
        }

        function hotApply(options) {
                if (currentStatus !== "ready") {
                        return Promise.resolve().then(function () {
                                throw new Error("apply() is only allowed in ready status");
                        });
                }
                return internalApply(options);
        }

        function internalApply(options) {
                options = options || {};

                applyInvalidatedModules();

                var results = currentUpdateApplyHandlers.map(function (handler) {
                        return handler(options);
                });
                currentUpdateApplyHandlers = undefined;

                var errors = results
                        .map(function (r) {
                                return r.error;
                        })
                        .filter(Boolean);

                if (errors.length > 0) {
                        return setStatus("abort").then(function () {
                                throw errors[0];
                        });
                }

                // Now in "dispose" phase
                var disposePromise = setStatus("dispose");

                results.forEach(function (result) {
                        if (result.dispose) result.dispose();
                });

                // Now in "apply" phase
                var applyPromise = setStatus("apply");

                var error;
                var reportError = function (err) {
                        if (!error) error = err;
                };

                var outdatedModules = [];
                results.forEach(function (result) {
                        if (result.apply) {
                                var modules = result.apply(reportError);
                                if (modules) {
                                        for (var i = 0; i < modules.length; i++) {
                                                outdatedModules.push(modules[i]);
                                        }
                                }
                        }
                });

                return Promise.all([disposePromise, applyPromise]).then(function () {
                        // handle errors in accept handlers and self accepted module load
                        if (error) {
                                return setStatus("fail").then(function () {
                                        throw error;
                                });
                        }

                        if (queuedInvalidatedModules) {
                                return internalApply(options).then(function (list) {
                                        outdatedModules.forEach(function (moduleId) {
                                                if (list.indexOf(moduleId) < 0) list.push(moduleId);
                                        });
                                        return list;
                                });
                        }

                        return setStatus("idle").then(function () {
                                return outdatedModules;
                        });
                });
        }

        function applyInvalidatedModules() {
                if (queuedInvalidatedModules) {
                        if (!currentUpdateApplyHandlers) currentUpdateApplyHandlers = [];
                        Object.keys($hmrInvalidateModuleHandlers$).forEach(function (key) {
                                queuedInvalidatedModules.forEach(function (moduleId) {
                                        $hmrInvalidateModuleHandlers$[key](
                                                moduleId,
                                                currentUpdateApplyHandlers
                                        );
                                });
                        });
                        queuedInvalidatedModules = undefined;
                        return true;
                }
        }
};