importTypescript.js 7.1 KB

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  1. /*---------------------------------------------------------------------------------------------
  2. * Copyright (c) Microsoft Corporation. All rights reserved.
  3. * Licensed under the MIT License. See License.txt in the project root for license information.
  4. *--------------------------------------------------------------------------------------------*/
  5. const path = require('path');
  6. const fs = require('fs');
  7. const child_process = require('child_process');
  8. const generatedNote = `//
  9. // **NOTE**: Do not edit directly! This file is generated using \`npm run import-typescript\`
  10. //
  11. `;
  12. const TYPESCRIPT_LIB_SOURCE = path.join(__dirname, '../node_modules/typescript/lib');
  13. const TYPESCRIPT_LIB_DESTINATION = path.join(__dirname, '../src/lib');
  14. (function () {
  15. try {
  16. fs.statSync(TYPESCRIPT_LIB_DESTINATION);
  17. } catch (err) {
  18. fs.mkdirSync(TYPESCRIPT_LIB_DESTINATION);
  19. }
  20. importLibs();
  21. const npmLsOutput = JSON.parse(child_process.execSync("npm ls typescript --depth=0 --json=true").toString());
  22. const typeScriptDependencyVersion = npmLsOutput.dependencies.typescript.version;
  23. fs.writeFileSync(
  24. path.join(TYPESCRIPT_LIB_DESTINATION, 'typescriptServicesMetadata.ts'),
  25. `${generatedNote}
  26. export const typescriptVersion = "${typeScriptDependencyVersion}";\n`
  27. );
  28. var tsServices = fs.readFileSync(path.join(TYPESCRIPT_LIB_SOURCE, 'typescriptServices.js')).toString();
  29. // Ensure we never run into the node system...
  30. // (this also removes require calls that trick webpack into shimming those modules...)
  31. tsServices = (
  32. tsServices.replace(/\n ts\.sys =([^]*)\n \}\)\(\);/m, `\n // MONACOCHANGE\n ts.sys = undefined;\n // END MONACOCHANGE`)
  33. );
  34. // Eliminate more require() calls...
  35. tsServices = tsServices.replace(/^( +)etwModule = require\(.*$/m, '$1// MONACOCHANGE\n$1etwModule = undefined;\n$1// END MONACOCHANGE');
  36. tsServices = tsServices.replace(/^( +)var result = ts\.sys\.require\(.*$/m, '$1// MONACOCHANGE\n$1var result = undefined;\n$1// END MONACOCHANGE');
  37. // Flag any new require calls (outside comments) so they can be corrected preemptively.
  38. // To avoid missing cases (or using an even more complex regex), temporarily remove comments
  39. // about require() and then check for lines actually calling require().
  40. // \/[*/] matches the start of a comment (single or multi-line).
  41. // ^\s+\*[^/] matches (presumably) a later line of a multi-line comment.
  42. const tsServicesNoCommentedRequire = tsServices.replace(/(\/[*/]|^\s+\*[^/]).*\brequire\(.*/gm, '');
  43. const linesWithRequire = tsServicesNoCommentedRequire.match(/^.*?\brequire\(.*$/gm);
  44. if (linesWithRequire && linesWithRequire.length) {
  45. console.error('Found new require() calls on the following lines. These should be removed to avoid breaking webpack builds.\n');
  46. console.error(linesWithRequire.join('\n'));
  47. process.exit(1);
  48. }
  49. // Make sure process.args don't get called in the browser, this
  50. // should only happen in TS 2.6.2
  51. const beforeProcess = `ts.perfLogger.logInfoEvent("Starting TypeScript v" + ts.versionMajorMinor + " with command line: " + JSON.stringify(process.argv));`
  52. const afterProcess = `// MONACOCHANGE\n ts.perfLogger.logInfoEvent("Starting TypeScript v" + ts.versionMajorMinor + " with command line: " + JSON.stringify([]));\n// END MONACOCHANGE`
  53. tsServices = tsServices.replace(beforeProcess, afterProcess);
  54. var tsServices_amd = generatedNote + tsServices +
  55. `
  56. // MONACOCHANGE
  57. // Defining the entire module name because r.js has an issue and cannot bundle this file
  58. // correctly with an anonymous define call
  59. define("vs/language/typescript/lib/typescriptServices", [], function() { return ts; });
  60. // END MONACOCHANGE
  61. `;
  62. fs.writeFileSync(path.join(TYPESCRIPT_LIB_DESTINATION, 'typescriptServices-amd.js'), stripSourceMaps(tsServices_amd));
  63. var tsServices_esm = generatedNote + tsServices +
  64. `
  65. // MONACOCHANGE
  66. export var createClassifier = ts.createClassifier;
  67. export var createLanguageService = ts.createLanguageService;
  68. export var displayPartsToString = ts.displayPartsToString;
  69. export var EndOfLineState = ts.EndOfLineState;
  70. export var flattenDiagnosticMessageText = ts.flattenDiagnosticMessageText;
  71. export var IndentStyle = ts.IndentStyle;
  72. export var ScriptKind = ts.ScriptKind;
  73. export var ScriptTarget = ts.ScriptTarget;
  74. export var TokenClass = ts.TokenClass;
  75. // END MONACOCHANGE
  76. `;
  77. fs.writeFileSync(path.join(TYPESCRIPT_LIB_DESTINATION, 'typescriptServices.js'), stripSourceMaps(tsServices_esm));
  78. var dtsServices = fs.readFileSync(path.join(TYPESCRIPT_LIB_SOURCE, 'typescriptServices.d.ts')).toString();
  79. dtsServices +=
  80. `
  81. // MONACOCHANGE
  82. export = ts;
  83. // END MONACOCHANGE
  84. `;
  85. fs.writeFileSync(path.join(TYPESCRIPT_LIB_DESTINATION, 'typescriptServices.d.ts'), generatedNote + dtsServices);
  86. })();
  87. function importLibs() {
  88. function readLibFile(name) {
  89. var srcPath = path.join(TYPESCRIPT_LIB_SOURCE, name);
  90. return fs.readFileSync(srcPath).toString();
  91. }
  92. var strResult = `/*---------------------------------------------------------------------------------------------
  93. * Copyright (c) Microsoft Corporation. All rights reserved.
  94. * Licensed under the MIT License. See License.txt in the project root for license information.
  95. *--------------------------------------------------------------------------------------------*/
  96. ${generatedNote}
  97. /** Contains all the lib files */
  98. export const libFileMap: Record<string, string> = {}
  99. `
  100. ;
  101. var dtsFiles = fs.readdirSync(TYPESCRIPT_LIB_SOURCE).filter(f => f.includes("lib."));
  102. while (dtsFiles.length > 0) {
  103. var name = dtsFiles.shift();
  104. var output = readLibFile(name);
  105. strResult += `libFileMap['${name}'] = "${escapeText(output)}";\n`;
  106. }
  107. var dstPath = path.join(TYPESCRIPT_LIB_DESTINATION, 'lib.ts');
  108. fs.writeFileSync(dstPath, strResult);
  109. }
  110. /**
  111. * Escape text such that it can be used in a javascript string enclosed by double quotes (")
  112. */
  113. function escapeText(text) {
  114. // See http://www.javascriptkit.com/jsref/escapesequence.shtml
  115. var _backspace = '\b'.charCodeAt(0);
  116. var _formFeed = '\f'.charCodeAt(0);
  117. var _newLine = '\n'.charCodeAt(0);
  118. var _nullChar = 0;
  119. var _carriageReturn = '\r'.charCodeAt(0);
  120. var _tab = '\t'.charCodeAt(0);
  121. var _verticalTab = '\v'.charCodeAt(0);
  122. var _backslash = '\\'.charCodeAt(0);
  123. var _doubleQuote = '"'.charCodeAt(0);
  124. var startPos = 0, chrCode, replaceWith = null, resultPieces = [];
  125. for (var i = 0, len = text.length; i < len; i++) {
  126. chrCode = text.charCodeAt(i);
  127. switch (chrCode) {
  128. case _backspace:
  129. replaceWith = '\\b';
  130. break;
  131. case _formFeed:
  132. replaceWith = '\\f';
  133. break;
  134. case _newLine:
  135. replaceWith = '\\n';
  136. break;
  137. case _nullChar:
  138. replaceWith = '\\0';
  139. break;
  140. case _carriageReturn:
  141. replaceWith = '\\r';
  142. break;
  143. case _tab:
  144. replaceWith = '\\t';
  145. break;
  146. case _verticalTab:
  147. replaceWith = '\\v';
  148. break;
  149. case _backslash:
  150. replaceWith = '\\\\';
  151. break;
  152. case _doubleQuote:
  153. replaceWith = '\\"';
  154. break;
  155. }
  156. if (replaceWith !== null) {
  157. resultPieces.push(text.substring(startPos, i));
  158. resultPieces.push(replaceWith);
  159. startPos = i + 1;
  160. replaceWith = null;
  161. }
  162. }
  163. resultPieces.push(text.substring(startPos, len));
  164. return resultPieces.join('');
  165. }
  166. function stripSourceMaps(str) {
  167. return str.replace(/\/\/# sourceMappingURL[^\n]+/gm, '');
  168. }