A small script to start Dartium with type checks and asserts enabled on OSX. To run it you need the Dart editor and added the `dart` command to $PATH

run_dartium.dart

#!/usr/bin/env dart

import 'dart:io';
import 'dart:async';

main() {
  // find and run Dartium with type checks and asserts enabled
  var whichDart = Process.run('which', ['dart']);
  whichDart.then((command) {
    var dartiumExecutable = new Path(command.stdout).join(new Path('../../../chromium/Chromium.app/Contents/MacOS/Chromium'));
    var dartiumCommand = dartiumExecutable.toString();
    var environment = {'DART_FLAGS': '--enable-type-checks --enable-asserts'};
    var dartium = Process.start(dartiumCommand, [], environment: environment);
  })
  .catchError((_) => print(_));
}