remove bootstrap methods from global scope after bootstrapping (#4869)

cli/js/compiler.ts

@@ -407,16 +407,13 @@ function bootstrapWasmCompilerRuntime(): void {
 delete (Object.prototype as any).__proto__;
 
 Object.defineProperties(globalThis, {
-  bootstrapWasmCompilerRuntime: {
-    value: bootstrapWasmCompilerRuntime,
-    enumerable: false,
-    writable: false,
-    configurable: false,
-  },
-  bootstrapTsCompilerRuntime: {
-    value: bootstrapTsCompilerRuntime,
-    enumerable: false,
-    writable: false,
-    configurable: false,
+  bootstrap: {
+    value: {
+      ...globalThis.bootstrap,
+      wasmCompilerRuntime: bootstrapWasmCompilerRuntime,
+      tsCompilerRuntime: bootstrapTsCompilerRuntime,
+    },
+    configurable: true,
+    writable: true,
   },
 });

cli/js/globals.ts

@@ -134,12 +134,19 @@ declare global {
   };
   var onload: ((e: Event) => void) | undefined;
   var onunload: ((e: Event) => void) | undefined;
-  var bootstrapMainRuntime: (() => void) | undefined;
 
-  // Assigned to `self` global - worker runtime and compiler
-  var bootstrapWorkerRuntime:
-    | ((name: string) => Promise<void> | void)
-    | undefined;
+  // These methods are used to prepare different runtime
+  // environments. After bootrapping, this namespace
+  // should be removed from global scope.
+  var bootstrap: {
+    mainRuntime: (() => void) | undefined;
+    // Assigned to `self` global - worker runtime and compiler
+    workerRuntime: ((name: string) => Promise<void> | void) | undefined;
+    // Assigned to `self` global - compiler
+    tsCompilerRuntime: (() => void) | undefined;
+    wasmCompilerRuntime: (() => void) | undefined;
+  };
+
   var onerror:
     | ((
         msg: string,
@@ -156,9 +163,6 @@ declare global {
   var close: () => void;
   // eslint-disable-next-line @typescript-eslint/no-explicit-any
   var postMessage: (msg: any) => void;
-  // Assigned to `self` global - compiler
-  var bootstrapTsCompilerRuntime: (() => void) | undefined;
-  var bootstrapWasmCompilerRuntime: (() => void) | undefined;
   /* eslint-enable */
 }
 

cli/js/main.ts

@@ -9,16 +9,12 @@ import { bootstrapWorkerRuntime } from "./runtime_worker.ts";
 delete (Object.prototype as any).__proto__;
 
 Object.defineProperties(globalThis, {
-  bootstrapMainRuntime: {
-    value: bootstrapMainRuntime,
-    enumerable: false,
-    writable: false,
-    configurable: false,
-  },
-  bootstrapWorkerRuntime: {
-    value: bootstrapWorkerRuntime,
-    enumerable: false,
-    writable: false,
-    configurable: false,
+  bootstrap: {
+    value: {
+      mainRuntime: bootstrapMainRuntime,
+      workerRuntime: bootstrapWorkerRuntime,
+    },
+    configurable: true,
+    writable: true,
   },
 });

cli/js/runtime_main.ts

@@ -72,6 +72,9 @@ export function bootstrapMainRuntime(): void {
   if (hasBootstrapped) {
     throw new Error("Worker runtime already bootstrapped");
   }
+  // Remove bootstrapping methods from global scope
+  // @ts-ignore
+  globalThis.bootstrap = undefined;
   log("bootstrapMainRuntime");
   hasBootstrapped = true;
   Object.defineProperties(globalThis, windowOrWorkerGlobalScopeMethods);

cli/js/runtime_worker.ts

@@ -126,6 +126,9 @@ export function bootstrapWorkerRuntime(
   if (hasBootstrapped) {
     throw new Error("Worker runtime already bootstrapped");
   }
+  // Remove bootstrapping methods from global scope
+  // @ts-ignore
+  globalThis.bootstrap = undefined;
   log("bootstrapWorkerRuntime");
   hasBootstrapped = true;
   Object.defineProperties(globalThis, windowOrWorkerGlobalScopeMethods);