@edge-runtime/vm - npm Package Compare versions

Comparing version 2.2.0-beta.2 to 2.2.0-beta.3

dist/edge-vm.d.ts

@@ -1,2 +0,2 @@
-import * as EdgePrimitives from '@edge-runtime/primitives';
+import type * as EdgePrimitives from '@edge-runtime/primitives';
 import type { DispatchFetch } from './types';
@@ -3,0 +3,0 @@ import { VM, type VMContext, type VMOptions } from './vm';

dist/edge-vm.js

 "use strict";
-var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
-    if (k2 === undefined) k2 = k;
-    var desc = Object.getOwnPropertyDescriptor(m, k);
-    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
-      desc = { enumerable: true, get: function() { return m[k]; } };
-    }
-    Object.defineProperty(o, k2, desc);
-}) : (function(o, m, k, k2) {
-    if (k2 === undefined) k2 = k;
-    o[k2] = m[k];
-}));
-var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
-    Object.defineProperty(o, "default", { enumerable: true, value: v });
-}) : function(o, v) {
-    o["default"] = v;
-});
-var __importStar = (this && this.__importStar) || function (mod) {
-    if (mod && mod.__esModule) return mod;
-    var result = {};
-    if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
-    __setModuleDefault(result, mod);
-    return result;
-};
 Object.defineProperty(exports, "__esModule", { value: true });
 exports.EdgeVM = void 0;
-const EdgePrimitives = __importStar(require("@edge-runtime/primitives"));
+const load_1 = require("@edge-runtime/primitives/load");
 const vm_1 = require("vm");
@@ -68,4 +45,4 @@ const vm_2 = require("./vm");
         this.dispatchFetch = this.evaluate(getDispatchFetchCode());
-        for (const item of constructorsToPatchInstanceOf) {
-            patchInstanceOf(item, this.context);
+        for (const name of transferableConstructors) {
+            patchInstanceOf(name, this.context);
         }
@@ -79,9 +56,16 @@ if (options === null || options === void 0 ? void 0 : options.initialCode) {
 /**
- * A list of constructors that need to be patched to make sure that the
- * `instanceof` operator works as expected from within the vm context,
- * even when passing it objects that were created in the Node.js realm.
+ * Transferable constructors are the constructors that we expect to be
+ * "shared" between the realms.
  *
- * Example: the return value from `new TextEncoder().encode("hello")` is a
- * Uint8Array. If `TextEncoder` is coming from the Node.js realm, then the
- * following will be false, which doesn't fit the expectation of the user:
+ * When a user creates an instance of one of these constructors, we want
+ * to make sure that the `instanceof` operator works as expected:
+ *
+ * * If the instance was created in the Node.js realm, then `instanceof`
+ *   should return true when used in the EdgeVM realm.
+ * * If the instance was created in the EdgeVM realm, then `instanceof`
+ *   should return true when used in the EdgeVM realm.
+ *
+ * For example, the return value from `new TextEncoder().encode("hello")` is a
+ * Uint8Array. Since `TextEncoder` implementation is coming from the Node.js realm,
+ * therefore the following will be false, which doesn't fit the expectation of the user:
  * ```ts
@@ -96,4 +80,8 @@ * new TextEncoder().encode("hello") instanceof Uint8Array
  * function, and this is the list of constructors that need to be patched.
+ *
+ * These constructors are also being injected as "globals" when the VM is
+ * constructed, by passing them as arguments to the {@link loadPrimitives}
+ * function.
  */
-const constructorsToPatchInstanceOf = [
+const transferableConstructors = [
     'Object',
@@ -254,4 +242,8 @@ 'Array',
     defineProperty(context, 'EdgeRuntime', { value: 'edge-runtime' });
+    const transferables = getTransferablePrimitivesFromContext(context);
     defineProperties(context, {
-        exports: EdgePrimitives,
+        exports: (0, load_1.load)({
+            ...transferables,
+            WeakRef: (0, vm_1.runInContext)(`WeakRef`, context),
+        }),
         enumerable: ['crypto'],
@@ -337,2 +329,11 @@ nonenumerable: [
 }
+/**
+ * Create an object that contains all the {@link transferableConstructors}
+ * implemented in the provided context.
+ */
+function getTransferablePrimitivesFromContext(context) {
+    const keys = transferableConstructors.join(',');
+    const stringifedObject = `({${keys}})`;
+    return (0, vm_1.runInContext)(stringifedObject, context);
+}
 //# sourceMappingURL=edge-vm.js.map

package.json

@@ -5,3 +5,3 @@ {
   "homepage": "https://edge-runtime.vercel.app/packages/vm",
-  "version": "2.2.0-beta.2",
+  "version": "2.2.0-beta.3",
   "main": "dist/index.js",
@@ -38,3 +38,3 @@ "repository": {
   "dependencies": {
-    "@edge-runtime/primitives": "2.2.0-beta.2"
+    "@edge-runtime/primitives": "2.2.0-beta.3"
   },
@@ -41,0 +41,0 @@ "devDependencies": {

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Improved metrics

Total package byte prevSize

76609

increased by1.9%

Lines of code

696

increased by0.14%

Dependency changes

• + Added@edge-runtime/primitives@2.2.0-beta.3(transitive)

• - Removed@edge-runtime/primitives@2.2.0-beta.2(transitive)

• Updated@edge-runtime/primitives@2.2.0-beta.3