{"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';\n\nconst chalk = require('chalk');\n\nconst friendlySyntaxErrorLabel = 'Syntax error:';\n\nfunction isLikelyASyntaxError(message) {\n  return message.indexOf(friendlySyntaxErrorLabel) !== -1;\n} // Cleans up webpack error messages.\n\n\nfunction formatMessage(message) {\n  let lines = message.split('\\n'); // Strip webpack-added headers off errors/warnings\n  // https://github.com/webpack/webpack/blob/master/lib/ModuleError.js\n\n  lines = lines.filter(line => !/Module [A-z ]+\\(from/.test(line)); // Transform parsing error into syntax error\n  // TODO: move this to our ESLint formatter?\n\n  lines = lines.map(line => {\n    const parsingError = /Line (\\d+):(?:(\\d+):)?\\s*Parsing error: (.+)$/.exec(line);\n\n    if (!parsingError) {\n      return line;\n    }\n\n    const [, errorLine, errorColumn, errorMessage] = parsingError;\n    return `${friendlySyntaxErrorLabel} ${errorMessage} (${errorLine}:${errorColumn})`;\n  });\n  message = lines.join('\\n'); // Smoosh syntax errors (commonly found in CSS)\n\n  message = message.replace(/SyntaxError\\s+\\((\\d+):(\\d+)\\)\\s*(.+?)\\n/g, `${friendlySyntaxErrorLabel} $3 ($1:$2)\\n`); // Clean up export errors\n\n  message = message.replace(/^.*export '(.+?)' was not found in '(.+?)'.*$/gm, `Attempted import error: '$1' is not exported from '$2'.`);\n  message = message.replace(/^.*export 'default' \\(imported as '(.+?)'\\) was not found in '(.+?)'.*$/gm, `Attempted import error: '$2' does not contain a default export (imported as '$1').`);\n  message = message.replace(/^.*export '(.+?)' \\(imported as '(.+?)'\\) was not found in '(.+?)'.*$/gm, `Attempted import error: '$1' is not exported from '$3' (imported as '$2').`);\n  lines = message.split('\\n'); // Remove leading newline\n\n  if (lines.length > 2 && lines[1].trim() === '') {\n    lines.splice(1, 1);\n  } // Clean up file name\n\n\n  lines[0] = lines[0].replace(/^(.*) \\d+:\\d+-\\d+$/, '$1'); // Cleans up verbose \"module not found\" messages for files and packages.\n\n  if (lines[1] && lines[1].indexOf('Module not found: ') === 0) {\n    lines = [lines[0], lines[1].replace('Error: ', '').replace('Module not found: Cannot find file:', 'Cannot find file:')];\n  } // Add helpful message for users trying to use Sass for the first time\n\n\n  if (lines[1] && lines[1].match(/Cannot find module.+node-sass/)) {\n    lines[1] = 'To import Sass files, you first need to install node-sass.\\n';\n    lines[1] += 'Run `npm install node-sass` or `yarn add node-sass` inside your workspace.';\n  }\n\n  lines[0] = chalk.inverse(lines[0]);\n  message = lines.join('\\n'); // Internal stacks are generally useless so we strip them... with the\n  // exception of stacks containing `webpack:` because they're normally\n  // from user code generated by webpack. 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errorLine, errorColumn, errorMessage] = parsingError;\n    return `${friendlySyntaxErrorLabel} ${errorMessage} (${errorLine}:${errorColumn})`;\n  });\n\n  message = lines.join('\\n');\n  // Smoosh syntax errors (commonly found in CSS)\n  message = message.replace(\n    /SyntaxError\\s+\\((\\d+):(\\d+)\\)\\s*(.+?)\\n/g,\n    `${friendlySyntaxErrorLabel} $3 ($1:$2)\\n`\n  );\n  // Clean up export errors\n  message = message.replace(\n    /^.*export '(.+?)' was not found in '(.+?)'.*$/gm,\n    `Attempted import error: '$1' is not exported from '$2'.`\n  );\n  message = message.replace(\n    /^.*export 'default' \\(imported as '(.+?)'\\) was not found in '(.+?)'.*$/gm,\n    `Attempted import error: '$2' does not contain a default export (imported as '$1').`\n  );\n  message = message.replace(\n    /^.*export '(.+?)' \\(imported as '(.+?)'\\) was not found in '(.+?)'.*$/gm,\n    `Attempted import error: '$1' is not exported from '$3' (imported as '$2').`\n  );\n  lines = message.split('\\n');\n\n  // Remove leading newline\n  if (lines.length > 2 && lines[1].trim() === '') {\n    lines.splice(1, 1);\n  }\n  // Clean up file name\n  lines[0] = lines[0].replace(/^(.*) \\d+:\\d+-\\d+$/, '$1');\n\n  // Cleans up verbose \"module not found\" messages for files and packages.\n  if (lines[1] && lines[1].indexOf('Module not found: ') === 0) {\n    lines = [\n      lines[0],\n      lines[1]\n        .replace('Error: ', '')\n        .replace('Module not found: Cannot find file:', 'Cannot find file:'),\n    ];\n  }\n\n  // Add helpful message for users trying to use Sass for the first time\n  if (lines[1] && lines[1].match(/Cannot find module.+node-sass/)) {\n    lines[1] = 'To import Sass files, you first need to install node-sass.\\n';\n    lines[1] +=\n      'Run `npm install node-sass` or `yarn add node-sass` inside your workspace.';\n  }\n\n  lines[0] = chalk.inverse(lines[0]);\n\n  message = lines.join('\\n');\n  // Internal stacks are generally useless so we strip them... with the\n  // exception of stacks containing `webpack:` because they're normally\n  // from user code generated by webpack. For more information see\n  // https://github.com/facebook/create-react-app/pull/1050\n  message = message.replace(\n    /^\\s*at\\s((?!webpack:).)*:\\d+:\\d+[\\s)]*(\\n|$)/gm,\n    ''\n  ); // at ... ...:x:y\n  message = message.replace(/^\\s*at\\s<anonymous>(\\n|$)/gm, ''); // at <anonymous>\n  lines = message.split('\\n');\n\n  // Remove duplicated newlines\n  lines = lines.filter(\n    (line, index, arr) =>\n      index === 0 || line.trim() !== '' || line.trim() !== arr[index - 1].trim()\n  );\n\n  // Reassemble the message\n  message = lines.join('\\n');\n  return message.trim();\n}\n\nfunction formatWebpackMessages(json) {\n  const formattedErrors = json.errors.map(formatMessage);\n  const formattedWarnings = json.warnings.map(formatMessage);\n  const result = { errors: formattedErrors, warnings: formattedWarnings };\n  if (result.errors.some(isLikelyASyntaxError)) {\n    // If there are any syntax errors, show just them.\n    result.errors = result.errors.filter(isLikelyASyntaxError);\n  }\n  return result;\n}\n\nmodule.exports = formatWebpackMessages;\n"]},"metadata":{},"sourceType":"script"}