@SuppressWarnings("static-access")
  protected Declaration outputConstant(
      String name,
      Pair<Expression, TypeRef> x,
      Signatures signatures,
      Element element,
      String elementTypeDescription,
      Identifier libraryClassName,
      boolean addFileComment,
      boolean signalErrors,
      boolean forceInteger,
      boolean alreadyConverted)
      throws UnsupportedConversionException {
    try {
      if (result.typeConverter.isJavaKeyword(name))
        throw new UnsupportedConversionException(
            element, "The name '" + name + "' is invalid for a Java field.");

      Pair<Expression, TypeRef> converted =
          alreadyConverted
              ? x
              : result.typeConverter.convertExpressionToJava(x.getFirst(), libraryClassName, true);
      // TypeRef tr = result.typeConverter.inferJavaType(converted);
      JavaPrim prim = result.typeConverter.getPrimitive(converted.getValue(), libraryClassName);

      if (forceInteger && prim == JavaPrim.Boolean) {
        prim = JavaPrim.Int;
        // tr = typeRef("int");
        converted =
            pair(
                expr("true".equals(String.valueOf(converted.toString())) ? 1 : 0),
                typeRef(Integer.TYPE));
      }

      if ((prim == null || converted.getValue() == null) && signalErrors) {
        if (result.config.limitComments) return null;

        return new EmptyDeclaration("Failed to infer type of " + converted);
      } else if (prim != JavaPrim.Void && converted.getValue() != null) {
        //				if (prim == JavaPrim.Int)
        //					tr = typeRef("long");

        if (signatures.addVariable(name)) {
          String t = converted.toString();
          if (t.contains("sizeof")) {
            converted =
                alreadyConverted
                    ? x
                    : result.typeConverter.convertExpressionToJava(
                        x.getFirst(), libraryClassName, false);
          }
          // TypeRef tr = new TypeRef.SimpleTypeRef(result.typeConverter.typeToJNA(type, vs,
          // TypeConversion.TypeConversionMode.FieldType, callerLibraryClass));
          TypeRef tr = converted.getValue();
          Expression value = converted.getFirst();
          if (result.config.castConstants) {
            if (!(value instanceof Constant) && !(value instanceof VariableRef))
              value.setParenthesis(true);
            value = new Cast(tr, value);
          }

          Declaration declaration = new VariablesDeclaration(tr, new DirectDeclarator(name, value));
          declaration.addModifiers(ModifierType.Public, ModifierType.Static, ModifierType.Final);
          if (!result.config.noComments)
            declaration.importComments(
                element, addFileComment ? getFileCommentContent(element) : null);
          return declaration;
        }
      }
      return skipDeclaration(element, elementTypeDescription);
    } catch (UnsupportedConversionException e) {
      return skipDeclaration(element, elementTypeDescription, e.toString());
    }
  }
  protected List<EnumItemResult> getEnumValuesAndCommentsByName(
      Enum e, Signatures signatures, Identifier libraryClassName) {
    List<EnumItemResult> ret = new ArrayList<EnumItemResult>();
    Integer lastAdditiveValue = null;
    Expression lastRefValue = null;
    boolean failedOnceForThisEnum = false;
    for (com.ochafik.lang.jnaerator.parser.Enum.EnumItem item : e.getItems()) {
      EnumItemResult res = new EnumItemResult();
      res.originalItem = item;
      try {
        if (item.getArguments().isEmpty()) {
          // no explicit value
          if (lastRefValue == null) {
            if (lastAdditiveValue != null) {
              lastAdditiveValue++;
              res.unconvertedValue = expr(lastAdditiveValue);
            } else {
              if (item == e.getItems().get(0)) {
                lastAdditiveValue = 0;
                res.unconvertedValue = expr(lastAdditiveValue);
              } else res.unconvertedValue = null;
            }
          } else {
            // has a last reference value
            if (lastAdditiveValue != null) lastAdditiveValue++;
            else lastAdditiveValue = 1;

            res.unconvertedValue =
                expr(lastRefValue.clone(), Expression.BinaryOperator.Plus, expr(lastAdditiveValue));
          }
        } else {
          // has an explicit value
          failedOnceForThisEnum = false; // reset skipping
          lastAdditiveValue = null;
          lastRefValue = item.getArguments().get(0);
          res.unconvertedValue = lastRefValue;
          if (lastRefValue instanceof Expression.Constant) {
            try {
              lastAdditiveValue = ((Expression.Constant) lastRefValue).asInteger();
              lastRefValue = null;
            } catch (Exception ex) {
            }
          }
        }

        res.convertedValue =
            result
                .typeConverter
                .convertExpressionToJava(res.unconvertedValue, libraryClassName, true)
                .getFirst();
      } catch (Exception ex) {
        failedOnceForThisEnum = true;
        res.exceptionMessage = ex.toString();
      }
      failedOnceForThisEnum = failedOnceForThisEnum || res.errorElement != null;
      if (failedOnceForThisEnum) res.errorElement = skipDeclaration(item);

      ret.add(res);
    }
    return ret;
  }