LocalModuleDependency.js 2.7 KB

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  1. /*
  2. MIT License http://www.opensource.org/licenses/mit-license.php
  3. Author Tobias Koppers @sokra
  4. */
  5. "use strict";
  6. const makeSerializable = require("../util/makeSerializable");
  7. const NullDependency = require("./NullDependency");
  8. /** @typedef {import("webpack-sources").ReplaceSource} ReplaceSource */
  9. /** @typedef {import("../Dependency")} Dependency */
  10. /** @typedef {import("../DependencyTemplate").DependencyTemplateContext} DependencyTemplateContext */
  11. /** @typedef {import("../javascript/JavascriptParser").Range} Range */
  12. /** @typedef {import("../serialization/ObjectMiddleware").ObjectDeserializerContext} ObjectDeserializerContext */
  13. /** @typedef {import("../serialization/ObjectMiddleware").ObjectSerializerContext} ObjectSerializerContext */
  14. /** @typedef {import("./LocalModule")} LocalModule */
  15. class LocalModuleDependency extends NullDependency {
  16. /**
  17. * Creates an instance of LocalModuleDependency.
  18. * @param {LocalModule} localModule local module
  19. * @param {Range | undefined} range range
  20. * @param {boolean} callNew true, when the local module should be called with new
  21. */
  22. constructor(localModule, range, callNew) {
  23. super();
  24. this.localModule = localModule;
  25. this.range = range;
  26. this.callNew = callNew;
  27. }
  28. /**
  29. * Serializes this instance into the provided serializer context.
  30. * @param {ObjectSerializerContext} context context
  31. */
  32. serialize(context) {
  33. const { write } = context;
  34. write(this.localModule);
  35. write(this.range);
  36. write(this.callNew);
  37. super.serialize(context);
  38. }
  39. /**
  40. * Restores this instance from the provided deserializer context.
  41. * @param {ObjectDeserializerContext} context context
  42. */
  43. deserialize(context) {
  44. const { read } = context;
  45. this.localModule = read();
  46. this.range = read();
  47. this.callNew = read();
  48. super.deserialize(context);
  49. }
  50. }
  51. makeSerializable(
  52. LocalModuleDependency,
  53. "webpack/lib/dependencies/LocalModuleDependency"
  54. );
  55. LocalModuleDependency.Template = class LocalModuleDependencyTemplate extends (
  56. NullDependency.Template
  57. ) {
  58. /**
  59. * Applies the plugin by registering its hooks on the compiler.
  60. * @param {Dependency} dependency the dependency for which the template should be applied
  61. * @param {ReplaceSource} source the current replace source which can be modified
  62. * @param {DependencyTemplateContext} templateContext the context object
  63. * @returns {void}
  64. */
  65. apply(dependency, source, templateContext) {
  66. const dep = /** @type {LocalModuleDependency} */ (dependency);
  67. if (!dep.range) return;
  68. const moduleInstance = dep.callNew
  69. ? `new (function () { return ${dep.localModule.variableName()}; })()`
  70. : dep.localModule.variableName();
  71. source.replace(dep.range[0], dep.range[1] - 1, moduleInstance);
  72. }
  73. };
  74. module.exports = LocalModuleDependency;