chore: Simplify typing

Author: bebraw

src/dependency.ts

@@ -1,45 +1,43 @@
 /* eslint-disable max-classes-per-file */
-
-import { ReplaceSource } from "webpack-sources";
-
-// eslint-disable-next-line
-// @ts-ignore: What's the right way to refer to this one?
-import Hash from "webpack/lib/util/Hash.js";
+import * as webpack from "webpack";
 
 // eslint-disable-next-line
 // @ts-ignore: What's the right way to refer to this one?
 import makeSerializable from "webpack/lib/util/makeSerializable.js";
 
-// eslint-disable-next-line
-// @ts-ignore TODO: Figure out where to find a typed version
-import NullDependency from "webpack/lib/dependencies/NullDependency.js";
+class DocGenDependency extends webpack.dependencies.NullDependency {
+  public codeBlock: string;
 
-class DocGenDependency extends NullDependency {
-  public static Template: NullDependency.Template;
-  private codeBlock: string;
-
-  constructor(request: string, codeBlock: string) {
-    super(request);
+  constructor(codeBlock: string) {
+    super();
 
     this.codeBlock = codeBlock;
   }
 
-  updateHash(hash: Hash): void {
+  updateHash: webpack.dependencies.NullDependency["updateHash"] = (hash) => {
     hash.update(this.codeBlock);
-  }
+  };
 }
 
 makeSerializable(
   DocGenDependency,
   "react-docgen-typescript-plugin/dist/dependency"
 );
-class DocGenTemplate extends NullDependency.Template {
-  apply(dependency: NullDependency, source: ReplaceSource): void {
+
+type NullDependencyTemplateType = InstanceType<
+  typeof webpack.dependencies.NullDependency.Template
+>;
+class DocGenTemplate extends webpack.dependencies.NullDependency.Template
+  implements NullDependencyTemplateType {
+  apply: NullDependencyTemplateType["apply"] = (
+    dependency: DocGenDependency,
+    source
+  ) => {
     if (dependency.codeBlock) {
       // Insert to the end
       source.insert(Infinity, dependency.codeBlock);
     }
-  }
+  };
 }
 
 DocGenDependency.Template = DocGenTemplate;

src/plugin.ts

@@ -124,7 +124,6 @@ export default class DocgenPlugin implements WebpackPluginInstance {
 
             module.addDependency(
               new DocGenDependency(
-                module.request,
                 generateDocgenCodeBlock({
                   filename: nameForCondition,
                   source: nameForCondition,