apollovm 0.0.5

ApolloVM is a portable VM (native, JS/Web, Flutter) that can parser, translate and run multiple languages, like Dart, Java, Kotlin and JavaScript.

ApolloVM

ApolloVM is a portable VM (native, JS/Web, Flutter) that can parser, translate and run multiple languages, like Dart, Java, Kotlin and JavaScript.

Usage

The ApolloVM is still in alpha stage. Below, we can see simple usage examples in Dart and Java.

Language: Dart

import 'package:apollovm/apollovm.dart';

void main() async {
  var vm = ApolloVM();

  var codeUnit = CodeUnit(
          'dart',
          r'''
            void main(List<String> args) {
              var title = args[0];
              var a = args[1];
              var b = args[2];
              var c = args[3];
              var sumAB = a + b ;
              var sumABC = a + b + c;
              print(title);
              print(sumAB);
              print(sumABC);
            }
          ''',
          'test');

  var loadOK = await vm.loadCodeUnit(codeUnit);

  if (!loadOK) {
    throw StateError('Error parsing Dart code!');
  }

  var dartRunner = vm.getRunner('dart')!;
  
  dartRunner.executeFunction('', 'main', [
    ['Sums:', 10, 20, 30]
  ]);

  print('---------------------------------------');
  // Regenerate code:
  var codeStorageDart = vm.generateAllCodeIn('dart');
  var allSourcesDart = codeStorageDart.writeAllSources().toString();
  print(allSourcesDart);
  
}

Note: the parsed function print was mapped as an external function.

Language: Java8

import 'package:apollovm/apollovm.dart';

void main() async {

  var vm = ApolloVM();

  var codeUnit = CodeUnit(
          'java8',
          r'''
            class Foo {
               static public void main(String[] args) {
                 var title = args[0];
                 var a = args[1];
                 var b = args[2];
                 var c = args[3];
                 var sumAB = a + b ;
                 var sumABC = a + b + c;
                 print(title);
                 print(sumAB);
                 print(sumABC);
               }
            }
          ''',
          'test');

  var loadOK = await vm.loadCodeUnit(codeUnit);

  if (!loadOK) {
    throw StateError('Error parsing Java8 code!');
  }

  var java8Runner = vm.getRunner('java8')!;
  
  java8Runner.executeClassMethod('', 'Foo', 'main', [
    ['Sums:', 10, 20, 30]
  ]);

  print('---------------------------------------');
  // Regenerate code:
  var codeStorageDart = vm.generateAllCodeIn('dart');
  var allSourcesDart = codeStorageDart.writeAllSources().toString();
  print(allSourcesDart);

  print('---------------------------------------');
  // Regenerate code:
  var codeStorageJava8 = vm.generateAllCodeIn('java8');
  var allSourcesJava8 = codeStorageJava8.writeAllSources().toString();
  print(allSourcesJava8);
  
}

Note: the parsed function print was mapped as an external function.

See Also

ApolloVM uses PetitParser for Dart to define the grammars of the languages and to analyze the source codes.

• PetitParser @ GitHub (a very nice project to build parsers).

Features and bugs

Please file feature requests and bugs at the issue tracker.

Contribution

Any help from open-source community is always welcome and needed:

• Found an issue?
  • Fill a bug with details.
• Which a feature?
  • Open a feature request.
• Are you using and liking the project?
  • Promote the project: create an article, post or make a donation.
• Are you a developer?
  • Fix a bug and send a pull request.
  • Implement a new feature.
  • Implement/improve a language support.
  • Added support for another language.
• Have you already helped in any way?
  • Many thanks from me, the contributors and everybody that uses this project!

Author

Graciliano M. Passos: gmpassos@GitHub.

License

Apache License - Version 2.0