feat(compartment-mapper): Support dynamic require/importNow

packages/compartment-mapper/NEWS.md

@@ -1,5 +1,12 @@
 User-visible changes to `@endo/compartment-mapper`:
 
+# Next release
+
+- Adds support for dynamic requires in CommonJS modules. This requires specific
+  configuration to be passed in (including new read powers), and is _not_
+  enabled by default. See the signature of `loadFromMap()` in `import-lite.js`
+  for details.
+
 # v1.2.0 (2024-07-30)
 
 - Fixes incompatible behavior with Node.js package conditional exports #2276.

packages/compartment-mapper/node-powers.js

@@ -1,3 +1,7 @@
-export { makeReadPowers, makeWritePowers } from './src/node-powers.js';
+export {
+  makeReadPowers,
+  makeWritePowers,
+  makeReadNowPowers,
+} from './src/node-powers.js';
 // Deprecated:
 export { makeNodeReadPowers, makeNodeWritePowers } from './src/node-powers.js';

packages/compartment-mapper/package.json

@@ -57,6 +57,7 @@
   "dependencies": {
     "@endo/cjs-module-analyzer": "workspace:^",
     "@endo/module-source": "workspace:^",
+    "@endo/trampoline": "workspace:^",
     "@endo/zip": "workspace:^",
     "ses": "workspace:^"
   },