Beispiel #1
0
 public static LispObject evaluate(String name, Environment environment, List<LispObject> args) {
   for (Class c : getSubroutineContainers()) {
     for (Method m : c.getMethods()) {
       Subroutine annotation = m.getAnnotation(Subroutine.class);
       if (annotation == null || !annotation.value().equals(name)) continue;
       if (!Arrays.asList(mySpecialForms).contains(c)) {
         if (!environment.areArgumentsEvaluated()) {
           for (int i = 0, dataSize = args.size(); i < dataSize; i++) {
             args.set(i, args.get(i).evaluate(environment));
           }
         } else {
           environment.setArgumentsEvaluated(false);
         }
       }
       ArgumentsList arguments = parseArguments(m, environment, args);
       checkArguments(name, arguments, args);
       try {
         return (LispObject) m.invoke(null, arguments.getValues());
       } catch (IllegalAccessException | InvocationTargetException e) {
         if (e.getCause().getMessage() == null) e.getCause().printStackTrace();
         else System.err.println(e.getCause().getMessage());
         Throwable cause = getCause(e);
         if (cause instanceof LispThrow) throw (LispThrow) cause;
         if (cause instanceof VoidVariableException && TestMode.TEST && c == Key.class) {
           System.err.println("Skip keymap errors in test mode");
           return LispSymbol.ourNil;
         }
         if (cause instanceof LispException) throw (LispException) cause;
         cause.printStackTrace();
         throw new LispException(e.getCause().getMessage());
       }
     }
   }
   throw new InternalException(JelispBundle.message("unknown.subroutine", name));
 }
Beispiel #2
0
  private static ArgumentsList parseArguments(
      Method m, Environment environment, List<LispObject> args) {
    Type[] parametersTypes = m.getGenericParameterTypes();
    Annotation[][] parametersAnnotations = m.getParameterAnnotations();
    if (parametersAnnotations.length != parametersTypes.length) {
      throw new InternalException(JelispBundle.message("subroutine.args.properties.mismatch"));
    }
    ArgumentsList arguments = new ArgumentsList();
    setOptional(arguments, parametersAnnotations, parametersTypes);

    int nActual = args.size();
    if (parametersTypes.length != 0) {
      if (parametersTypes[0].equals(Environment.class)) {
        ++nActual;
        arguments.setValue(0, environment);
      }
    }

    if ((nActual < arguments.getRequiredSize())
        || (nActual > parametersTypes.length && !m.isVarArgs()))
      throw new WrongNumberOfArgumentsException(m.getAnnotation(Subroutine.class).value(), nActual);

    return arguments;
  }