cc @erights endojs/endo#2206 (comment)
Follow https://reactnative.dev/docs/0.71/environment-setup
React Native CLI Quickstart > macOS > Android
to get setup to run the app on an emulator
Run yarn in a terminal window
Edit with e.g. VSCode
code node_modules/react-native/Libraries/Core/InitializeCore.js
// ...
'use strict';
require('../../../../ses.cjs');
repairIntrinsics({ errorTaming: 'unsafe', consoleTaming: 'unsafe', errorTrapping: 'none', unhandledRejectionTrapping: 'none', overrideTaming: 'severe', stackFiltering: 'verbose' });
// hardenIntrinsics(); // TODO, app currently hangs when enabled
const start = Date.now();
// ...Run yarn start to boot Metro
Then type a to boot up the app on an Android emulator
The app should be functional, since parts of ses.cjs are temporarily commented with TODO's (see commits)
Adding a debugger statement without Flipper running will hang the app execution
To debug, download and open Flipper-mac.dmg from
https://github.com/facebook/flipper/releases/tag/v0.125.0
On first open, you may need to allow Flipper to run via Mac Privacy & Security > Security system settings
Open Hermes Debugger (which should connect to Metro) to hook into a debugger statement and breakpoints should work
(You may need to type a again to rebuild the app, then re-open Hermes Debugger within Flipper for successful debugging)
Nb: Couldn't get Hermes Debugger to work testing in RN 72/73, i can create repo's for these too to demonstrate
In ses.cjs, uncomment any of these TODO's to repro issues listed in endojs/endo#1891
// ...
// assertDirectEvalAvailable(); // TODO
// ...
addIntrinsics(tameFunctionConstructors());
addIntrinsics(tameDateConstructor(dateTaming));
addIntrinsics(tameErrorConstructor(errorTaming, stackFiltering));
addIntrinsics(tameMathObject(mathTaming));
addIntrinsics(tameRegExpConstructor(regExpTaming)); // Fixed in: https://github.com/endojs/endo/pull/2108
addIntrinsics(tameSymbolConstructor()); // Fixed in: https://github.com/endojs/endo/pull/2206 and this PR
// addIntrinsics(getAnonymousIntrinsics()); // TODO
// completePrototypes(); // TODO
// ...
// whitelistIntrinsics(intrinsics, markVirtualizedNativeFunction); // TODO
// ...