package.lib.hmr.HotModuleReplacement.runtime.js Maven / Gradle / Ivy

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Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
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/*
	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 = 0;
	var blockingPromisesWaiting = [];

	// The update info
	var currentUpdateApplyHandlers;
	var queuedInvalidatedModules;

	$hmrModuleData$ = 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, fetchPriority) {
			return trackBlockingPromise(require.e(chunkId, fetchPriority));
		};
		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).then(function () {});
	}

	function unblock() {
		if (--blockingPromises === 0) {
			setStatus("ready").then(function () {
				if (blockingPromises === 0) {
					var list = blockingPromisesWaiting;
					blockingPromisesWaiting = [];
					for (var i = 0; i < list.length; i++) {
						list[i]();
					}
				}
			});
		}
	}

	function trackBlockingPromise(promise) {
		switch (currentStatus) {
			case "ready":
				setStatus("prepare");
			/* fallthrough */
			case "prepare":
				blockingPromises++;
				promise.then(unblock, unblock);
				return promise;
			default:
				return promise;
		}
	}

	function waitForBlockingPromises(fn) {
		if (blockingPromises === 0) return fn();
		return new Promise(function (resolve) {
			blockingPromisesWaiting.push(function () {
				resolve(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 = [];
					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 (state: " +
						currentStatus +
						")"
				);
			});
		}
		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;
		}
	}
};