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1 lines
23 KiB
{"ast":null,"code":"/**\n * Copyright (c) 2015-present, Facebook, Inc.\n *\n * This source code is licensed under the MIT license found in the\n * LICENSE file in the root directory of this source tree.\n */\n'use strict'; // This alternative WebpackDevServer combines the functionality of:\n// https://github.com/webpack/webpack-dev-server/blob/webpack-1/client/index.js\n// https://github.com/webpack/webpack/blob/webpack-1/hot/dev-server.js\n// It only supports their simplest configuration (hot updates on same server).\n// It makes some opinionated choices on top, like adding a syntax error overlay\n// that looks similar to our console output. 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Disconnect usually happens\n// when developer stops the server.\nconnection.onclose = function() {\n if (typeof console !== 'undefined' && typeof console.info === 'function') {\n console.info(\n 'The development server has disconnected.\\nRefresh the page if necessary.'\n );\n }\n};\n\n// Remember some state related to hot module replacement.\nvar isFirstCompilation = true;\nvar mostRecentCompilationHash = null;\nvar hasCompileErrors = false;\n\nfunction clearOutdatedErrors() {\n // Clean up outdated compile errors, if any.\n if (typeof console !== 'undefined' && typeof console.clear === 'function') {\n if (hasCompileErrors) {\n console.clear();\n }\n }\n}\n\n// Successful compilation.\nfunction handleSuccess() {\n clearOutdatedErrors();\n\n var isHotUpdate = !isFirstCompilation;\n isFirstCompilation = false;\n hasCompileErrors = false;\n\n // Attempt to apply hot updates or reload.\n if (isHotUpdate) {\n tryApplyUpdates(function onHotUpdateSuccess() {\n // Only dismiss it when we're sure it's a hot update.\n // Otherwise it would flicker right before the reload.\n tryDismissErrorOverlay();\n });\n }\n}\n\n// Compilation with warnings (e.g. ESLint).\nfunction handleWarnings(warnings) {\n clearOutdatedErrors();\n\n var isHotUpdate = !isFirstCompilation;\n isFirstCompilation = false;\n hasCompileErrors = false;\n\n function printWarnings() {\n // Print warnings to the console.\n var formatted = formatWebpackMessages({\n warnings: warnings,\n errors: [],\n });\n\n if (typeof console !== 'undefined' && typeof console.warn === 'function') {\n for (var i = 0; i < formatted.warnings.length; i++) {\n if (i === 5) {\n console.warn(\n 'There were more warnings in other files.\\n' +\n 'You can find a complete log in the terminal.'\n );\n break;\n }\n console.warn(stripAnsi(formatted.warnings[i]));\n }\n }\n }\n\n printWarnings();\n\n // Attempt to apply hot updates or reload.\n if (isHotUpdate) {\n tryApplyUpdates(function onSuccessfulHotUpdate() {\n // Only dismiss it when we're sure it's a hot update.\n // Otherwise it would flicker right before the reload.\n tryDismissErrorOverlay();\n });\n }\n}\n\n// Compilation with errors (e.g. syntax error or missing modules).\nfunction handleErrors(errors) {\n clearOutdatedErrors();\n\n isFirstCompilation = false;\n hasCompileErrors = true;\n\n // \"Massage\" webpack messages.\n var formatted = formatWebpackMessages({\n errors: errors,\n warnings: [],\n });\n\n // Only show the first error.\n ErrorOverlay.reportBuildError(formatted.errors[0]);\n\n // Also log them to the console.\n if (typeof console !== 'undefined' && typeof console.error === 'function') {\n for (var i = 0; i < formatted.errors.length; i++) {\n console.error(stripAnsi(formatted.errors[i]));\n }\n }\n\n // Do not attempt to reload now.\n // We will reload on next success instead.\n}\n\nfunction tryDismissErrorOverlay() {\n if (!hasCompileErrors) {\n ErrorOverlay.dismissBuildError();\n }\n}\n\n// There is a newer version of the code available.\nfunction handleAvailableHash(hash) {\n // Update last known compilation hash.\n mostRecentCompilationHash = hash;\n}\n\n// Handle messages from the server.\nconnection.onmessage = function(e) {\n var message = JSON.parse(e.data);\n switch (message.type) {\n case 'hash':\n handleAvailableHash(message.data);\n break;\n case 'still-ok':\n case 'ok':\n handleSuccess();\n break;\n case 'content-changed':\n // Triggered when a file from `contentBase` changed.\n window.location.reload();\n break;\n case 'warnings':\n handleWarnings(message.data);\n break;\n case 'errors':\n handleErrors(message.data);\n break;\n default:\n // Do nothing.\n }\n};\n\n// Is there a newer version of this code available?\nfunction isUpdateAvailable() {\n /* globals __webpack_hash__ */\n // __webpack_hash__ is the hash of the current compilation.\n // It's a global variable injected by webpack.\n return mostRecentCompilationHash !== __webpack_hash__;\n}\n\n// webpack disallows updates in other states.\nfunction canApplyUpdates() {\n return module.hot.status() === 'idle';\n}\n\n// Attempt to update code on the fly, fall back to a hard reload.\nfunction tryApplyUpdates(onHotUpdateSuccess) {\n if (!module.hot) {\n // HotModuleReplacementPlugin is not in webpack configuration.\n window.location.reload();\n return;\n }\n\n if (!isUpdateAvailable() || !canApplyUpdates()) {\n return;\n }\n\n function handleApplyUpdates(err, updatedModules) {\n if (err || !updatedModules || hadRuntimeError) {\n window.location.reload();\n return;\n }\n\n if (typeof onHotUpdateSuccess === 'function') {\n // Maybe we want to do something.\n onHotUpdateSuccess();\n }\n\n if (isUpdateAvailable()) {\n // While we were updating, there was a new update! Do it again.\n tryApplyUpdates();\n }\n }\n\n // https://webpack.github.io/docs/hot-module-replacement.html#check\n var result = module.hot.check(/* autoApply */ true, handleApplyUpdates);\n\n // // webpack 2 returns a Promise instead of invoking a callback\n if (result && result.then) {\n result.then(\n function(updatedModules) {\n handleApplyUpdates(null, updatedModules);\n },\n function(err) {\n handleApplyUpdates(err, null);\n }\n );\n }\n}\n"]},"metadata":{},"sourceType":"script"}
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