refactor(@ngtools/webpack): move internal loaders into a subdirectory

The source file for the internal inline resource loader is moved into a `loaders` subdirectory for better code organization. The need to call `require.resolve` is also removed from the consumers of this loader.

Author: clydin

packages/ngtools/webpack/src/inline-data-loader.ts renamed to packages/ngtools/webpack/src/loaders/inline-resource.ts

@@ -8,6 +8,8 @@
 
 import type { Compilation, LoaderContext } from 'webpack';
 
+export const InlineAngularResourceLoaderPath = __filename;
+
 export const InlineAngularResourceSymbol = Symbol('@ngtools/webpack[angular-resource]');
 
 export interface CompilationWithInlineAngularResource extends Compilation {

packages/ngtools/webpack/src/resource_loader.ts

@@ -10,11 +10,12 @@ import { createHash } from 'crypto';
 import * as path from 'path';
 import * as vm from 'vm';
 import type { Asset, Compilation } from 'webpack';
+import { normalizePath } from './ivy/paths';
 import {
   CompilationWithInlineAngularResource,
+  InlineAngularResourceLoaderPath,
   InlineAngularResourceSymbol,
-} from './inline-data-loader';
-import { normalizePath } from './ivy/paths';
+} from './loaders/inline-resource';
 
 interface CompilationOutput {
   content: string;
@@ -33,7 +34,7 @@ export class WebpackResourceLoader {
   private modifiedResources = new Set<string>();
   private outputPathCounter = 1;
 
-  private readonly inlineDataLoaderPath = require.resolve('./inline-data-loader');
+  private readonly inlineDataLoaderPath = InlineAngularResourceLoaderPath;
 
   constructor(shouldCache: boolean) {
     if (shouldCache) {

packages/ngtools/webpack/src/transformers/replace_resources.ts

@@ -7,8 +7,7 @@
  */
 
 import * as ts from 'typescript';
-
-const inlineDataLoaderPath = require.resolve('../inline-data-loader');
+import { InlineAngularResourceLoaderPath } from '../loaders/inline-resource';
 
 export function replaceResources(
   shouldTransform: (fileName: string) => boolean,
@@ -208,7 +207,7 @@ function visitComponentMetadata(
           } else if (inlineStyleFileExtension) {
             const data = Buffer.from(node.text).toString('base64');
             const containingFile = node.getSourceFile().fileName;
-            url = `${containingFile}.${inlineStyleFileExtension}!=!${inlineDataLoaderPath}?data=${encodeURIComponent(
+            url = `${containingFile}.${inlineStyleFileExtension}!=!${InlineAngularResourceLoaderPath}?data=${encodeURIComponent(
               data,
             )}!${containingFile}`;
           } else {