repl function

Future repl(VmService vmService)

Implementation

Future repl(VmService vmService) async {
  // Get currently running VM
  vms = vmService;
  final vm = await vmService.getVM();
  final isolateRef = vm.isolates?.first;
  if (isolateRef == null) {
    throw Exception("unable to get reference to current Isolate");
  }
  if (isolateRef.id == null) {
    throw Exception("unable to get ID for current Isolate");
  }
  isolateId = isolateRef.id!;

  final isolate = await vmService.getIsolate(isolateId);

  scratch = File(scratchPath);
  if (!scratch.existsSync()) {
    throw InvalidPathResult();
  }
  nextScratch = File(nextPath);

  // clear out any previous code from previous sessions
  scratch.writeAsStringSync('');
  nextScratch.writeAsStringSync('');

  // unfortuntely Repl validator func can't be async so we need to handle validation ourselves when
  // we process possible statement inputs
  final repl = Repl(prompt: '> ', continuation: '... ', validator: null);

  for (final replInput in repl.run()) {
    if (replInput.trim().isNotEmpty) {
      await process(vmService, isolate, replInput);
    }
  }

  exit(0);
}