WebpackIsIncludedPlugin.js 2.6 KB

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  1. /*
  2. MIT License http://www.opensource.org/licenses/mit-license.php
  3. Author Ivan Kopeykin @vankop
  4. */
  5. "use strict";
  6. const {
  7. JAVASCRIPT_MODULE_TYPE_AUTO,
  8. JAVASCRIPT_MODULE_TYPE_DYNAMIC,
  9. JAVASCRIPT_MODULE_TYPE_ESM
  10. } = require("./ModuleTypeConstants");
  11. const WebpackIsIncludedDependency = require("./dependencies/WebpackIsIncludedDependency");
  12. const IgnoreErrorModuleFactory = require("./errors/IgnoreErrorModuleFactory");
  13. const {
  14. toConstantDependency
  15. } = require("./javascript/JavascriptParserHelpers");
  16. /** @import Compiler from "./Compiler" */
  17. /** @import JavascriptParser, { Range } from "./javascript/JavascriptParser" */
  18. const PLUGIN_NAME = "WebpackIsIncludedPlugin";
  19. class WebpackIsIncludedPlugin {
  20. /**
  21. * Applies the plugin by registering its hooks on the compiler.
  22. * @param {Compiler} compiler the compiler instance
  23. * @returns {void}
  24. */
  25. apply(compiler) {
  26. compiler.hooks.compilation.tap(
  27. PLUGIN_NAME,
  28. (compilation, { normalModuleFactory }) => {
  29. compilation.dependencyFactories.set(
  30. WebpackIsIncludedDependency,
  31. new IgnoreErrorModuleFactory(normalModuleFactory)
  32. );
  33. compilation.dependencyTemplates.set(
  34. WebpackIsIncludedDependency,
  35. new WebpackIsIncludedDependency.Template()
  36. );
  37. /**
  38. * Handles the hook callback for this code path.
  39. * @param {JavascriptParser} parser the parser
  40. * @returns {void}
  41. */
  42. const handler = (parser) => {
  43. parser.hooks.call
  44. .for("__webpack_is_included__")
  45. .tap(PLUGIN_NAME, (expr) => {
  46. if (
  47. expr.type !== "CallExpression" ||
  48. expr.arguments.length !== 1 ||
  49. expr.arguments[0].type === "SpreadElement"
  50. ) {
  51. return;
  52. }
  53. const request = parser.evaluateExpression(expr.arguments[0]);
  54. if (!request.isString()) return;
  55. const dep = new WebpackIsIncludedDependency(
  56. /** @type {string} */ (request.string),
  57. /** @type {Range} */ (expr.range)
  58. );
  59. dep.loc = parser.getLocation(expr);
  60. parser.state.module.addDependency(dep);
  61. return true;
  62. });
  63. parser.hooks.typeof
  64. .for("__webpack_is_included__")
  65. .tap(
  66. PLUGIN_NAME,
  67. toConstantDependency(parser, JSON.stringify("function"))
  68. );
  69. };
  70. normalModuleFactory.hooks.parser
  71. .for(JAVASCRIPT_MODULE_TYPE_AUTO)
  72. .tap(PLUGIN_NAME, handler);
  73. normalModuleFactory.hooks.parser
  74. .for(JAVASCRIPT_MODULE_TYPE_DYNAMIC)
  75. .tap(PLUGIN_NAME, handler);
  76. normalModuleFactory.hooks.parser
  77. .for(JAVASCRIPT_MODULE_TYPE_ESM)
  78. .tap(PLUGIN_NAME, handler);
  79. }
  80. );
  81. }
  82. }
  83. module.exports = WebpackIsIncludedPlugin;