dont mutate execution context

Author: maxakuru

src/index.js

@@ -40,15 +40,17 @@ async function parseData(req) {
 }
 
 /**
- * @param {import("@cloudflare/workers-types/experimental").ExecutionContext} pctx
+ * @param {import("@cloudflare/workers-types/experimental").ExecutionContext} eCtx
  * @param {import("@cloudflare/workers-types/experimental").Request} req
  * @param {Env} env
  * @returns {Promise<Context>}
  */
-export async function makeContext(pctx, req, env) {
+export async function makeContext(eCtx, req, env) {
   /** @type {Context} */
   // @ts-ignore
-  const ctx = pctx;
+  const ctx = {
+    executionContext: eCtx,
+  };
   // @ts-ignore
   ctx.attributes = {};
   // @ts-ignore
@@ -75,11 +77,11 @@ export default {
   /**
    * @param {import("@cloudflare/workers-types/experimental").Request} request
    * @param {Env} env
-   * @param {import("@cloudflare/workers-types/experimental").ExecutionContext} pctx
+   * @param {import("@cloudflare/workers-types/experimental").ExecutionContext} eCtx
    * @returns {Promise<Response>}
    */
-  async fetch(request, env, pctx) {
-    const ctx = await makeContext(pctx, request, env);
+  async fetch(request, env, eCtx) {
+    const ctx = await makeContext(eCtx, request, env);
 
     try {
       const overrides = Object.fromEntries(ctx.url.searchParams.entries());

src/types.d.ts

@@ -242,7 +242,7 @@ declare global {
     [key: string]: string | KVNamespace<string> | R2Bucket;
   }
 
-  export interface Context extends ExecutionContext {
+  export interface Context {
     url: URL;
     env: Env;
     log: Console;
@@ -263,6 +263,7 @@ declare global {
       key?: string;
       [key: string]: any;
     }
+    executionContext: ExecutionContext;
   }
 
   export interface Product {