[Blazor] Move webassembly only functions to Boot.WebAssembly.ts (#13249)

src/Components/Web.JS/src/Boot.WebAssembly.ts

@@ -6,7 +6,7 @@ import { getAssemblyNameFromUrl } from './Platform/Url';
 import { renderBatch } from './Rendering/Renderer';
 import { SharedMemoryRenderBatch } from './Rendering/RenderBatch/SharedMemoryRenderBatch';
 import { Pointer } from './Platform/Platform';
-import { fetchBootConfigAsync, loadEmbeddedResourcesAsync, shouldAutoStart } from './BootCommon';
+import { shouldAutoStart } from './BootCommon';
 import { setEventDispatcher } from './Rendering/RendererEventDispatcher';
 
 let started = false;
@@ -64,6 +64,46 @@ async function boot(options?: any): Promise<void> {
   platform.callEntryPoint(mainAssemblyName, bootConfig.entryPoint, []);
 }
 
+async function fetchBootConfigAsync() {
+  // Later we might make the location of this configurable (e.g., as an attribute on the <script>
+  // element that's importing this file), but currently there isn't a use case for that.
+  const bootConfigResponse = await fetch('_framework/blazor.boot.json', { method: 'Get', credentials: 'include' });
+  return bootConfigResponse.json() as Promise<BootJsonData>;
+}
+
+function loadEmbeddedResourcesAsync(bootConfig: BootJsonData): Promise<any> {
+  const cssLoadingPromises = bootConfig.cssReferences.map(cssReference => {
+    const linkElement = document.createElement('link');
+    linkElement.rel = 'stylesheet';
+    linkElement.href = cssReference;
+    return loadResourceFromElement(linkElement);
+  });
+  const jsLoadingPromises = bootConfig.jsReferences.map(jsReference => {
+    const scriptElement = document.createElement('script');
+    scriptElement.src = jsReference;
+    return loadResourceFromElement(scriptElement);
+  });
+  return Promise.all(cssLoadingPromises.concat(jsLoadingPromises));
+}
+
+function loadResourceFromElement(element: HTMLElement) {
+  return new Promise((resolve, reject) => {
+    element.onload = resolve;
+    element.onerror = reject;
+    document.head!.appendChild(element);
+  });
+}
+
+// Keep in sync with BootJsonData in Microsoft.AspNetCore.Blazor.Build
+interface BootJsonData {
+  main: string;
+  entryPoint: string;
+  assemblyReferences: string[];
+  cssReferences: string[];
+  jsReferences: string[];
+  linkerEnabled: boolean;
+}
+
 window['Blazor'].start = boot;
 if (shouldAutoStart()) {
   boot();

src/Components/Web.JS/src/BootCommon.ts

@@ -1,43 +1,3 @@
-export async function fetchBootConfigAsync() {
-  // Later we might make the location of this configurable (e.g., as an attribute on the <script>
-  // element that's importing this file), but currently there isn't a use case for that.
-  const bootConfigResponse = await fetch('_framework/blazor.boot.json', { method: 'Get', credentials: 'include' });
-  return bootConfigResponse.json() as Promise<BootJsonData>;
-}
-
-export function loadEmbeddedResourcesAsync(bootConfig: BootJsonData): Promise<any> {
-  const cssLoadingPromises = bootConfig.cssReferences.map(cssReference => {
-    const linkElement = document.createElement('link');
-    linkElement.rel = 'stylesheet';
-    linkElement.href = cssReference;
-    return loadResourceFromElement(linkElement);
-  });
-  const jsLoadingPromises = bootConfig.jsReferences.map(jsReference => {
-    const scriptElement = document.createElement('script');
-    scriptElement.src = jsReference;
-    return loadResourceFromElement(scriptElement);
-  });
-  return Promise.all(cssLoadingPromises.concat(jsLoadingPromises));
-}
-
-function loadResourceFromElement(element: HTMLElement) {
-  return new Promise((resolve, reject) => {
-    element.onload = resolve;
-    element.onerror = reject;
-    document.head!.appendChild(element);
-  });
-}
-
-// Keep in sync with BootJsonData in Microsoft.AspNetCore.Blazor.Build
-interface BootJsonData {
-  main: string;
-  entryPoint: string;
-  assemblyReferences: string[];
-  cssReferences: string[];
-  jsReferences: string[];
-  linkerEnabled: boolean;
-}
-
 // Tells you if the script was added without <script src="..." autostart="false"></script>
 export function shouldAutoStart() {
   return !!(document &&