Exemple #1
0
  public static boolean isNumericallyCoercible(final MetaClass target, final MetaClass parm) {
    MetaClass boxedTarget = target.isPrimitive() ? target.asBoxed() : target;

    if (boxedTarget != null && Number_MetaClass.isAssignableFrom(target)) {
      if ((boxedTarget = parm.isPrimitive() ? parm.asBoxed() : parm) != null) {
        return Number_MetaClass.isAssignableFrom(boxedTarget);
      }
    }
    return false;
  }
Exemple #2
0
  public static int scoreMethods(
      final MetaClass[] arguments, final MetaParameter[] parmTypes, final boolean isVarArgs) {
    int score = 0;
    for (int i = 0; i != arguments.length; i++) {
      final MetaClass actualParamType;
      if (isVarArgs && !arguments[arguments.length - 1].isArray() && i >= parmTypes.length - 1)
        actualParamType = parmTypes[parmTypes.length - 1].getType().getComponentType();
      else actualParamType = parmTypes[i].getType();

      if (arguments[i] == null) {
        if (!actualParamType.isPrimitive()) {
          score += 6;
        } else {
          score = 0;
          break;
        }
      } else if (actualParamType.equals(arguments[i])) {
        score += 7;
      } else if (actualParamType.isPrimitive() && actualParamType.asBoxed().equals(arguments[i])) {
        score += 6;
      } else if (arguments[i].isPrimitive() && arguments[i].asUnboxed().equals(actualParamType)) {
        score += 6;
      } else if (actualParamType.isAssignableFrom(arguments[i])) {
        score += 5;
      } else if (isNumericallyCoercible(arguments[i], actualParamType)) {
        score += 4;
      } else if (actualParamType.asBoxed().isAssignableFrom(arguments[i].asBoxed())
          && !Object_MetaClass.equals(arguments[i])) {
        score += 3 + scoreInterface(actualParamType, arguments[i]);
      } else if (canConvert(actualParamType, arguments[i])) {
        if (actualParamType.isArray() && arguments[i].isArray()) {
          final MetaClass outerComponentTypeActual = actualParamType.getOuterComponentType();
          final MetaClass outerComponentTypeArg = arguments[i].getOuterComponentType();

          if (canConvert(outerComponentTypeActual, outerComponentTypeArg)) {
            score += 1;
          } else {
            continue;
          }
        } else if (actualParamType.equals(char_MetaClass)
            && arguments[i].equals(String_MetaClass)) {
          score += 1;
        }

        score += 1;
      } else if (actualParamType.equals(Object_MetaClass)
          || arguments[i].equals(NullType_MetaClass)) {
        score += 1;
      } else {
        score = 0;
        break;
      }
    }
    return score;
  }
  private static Statement paramFromStringStatement(MetaClass toType, Statement stringValue) {

    // make sure it's really a string
    stringValue = Stmt.castTo(String.class, stringValue);

    if (toType.isAssignableTo(String.class)) {
      return stringValue;
    } else if (toType.asBoxed().isAssignableTo(Number.class)) {
      return Stmt.invokeStatic(toType.asBoxed(), "valueOf", stringValue);
    } else if (toType.asBoxed().isAssignableTo(Boolean.class)) {
      return Stmt.invokeStatic(Boolean.class, "valueOf", stringValue);
    } else {
      throw new UnsupportedOperationException(
          "@PageState fields of type " + toType.getFullyQualifiedName() + " are not supported");
    }
  }
Exemple #4
0
  public static void assertAssignableTypes(
      final Context context, final MetaClass from, final MetaClass to) {
    if (!to.asBoxed().isAssignableFrom(from.asBoxed())) {
      if (to.isArray()
          && from.isArray()
          && GenUtil.getArrayDimensions(to) == GenUtil.getArrayDimensions(from)
          && to.getOuterComponentType().isAssignableFrom(from.getOuterComponentType())) {
        return;
      }

      if (!context.isPermissiveMode()) {
        if (classAliases.contains(from.getFullyQualifiedName())
            && classAliases.contains(to.getFullyQualifiedName())) {
          // handle convertibility between MetaClass API and java Class reference.
          return;
        }

        throw new InvalidTypeException(
            to.getFullyQualifiedName() + " is not assignable from " + from.getFullyQualifiedName());
      }
    }
  }
 private Statement defaultValueStatement(MetaClass type) {
   if (type.isPrimitive()) {
     if (type.asBoxed().isAssignableTo(Number.class)) {
       return Stmt.castTo(type, Stmt.load(0));
     } else if (type.isAssignableTo(boolean.class)) {
       return Stmt.load(false);
     } else {
       throw new UnsupportedOperationException(
           "Don't know how to make a default value for @PageState field of type "
               + type.getFullyQualifiedName());
     }
   } else {
     return Stmt.load(null);
   }
 }
Exemple #6
0
  public static Statement convert(final Context context, Object input, final MetaClass targetType) {
    try {
      if (input instanceof Statement) {
        if (input instanceof LiteralValue<?>) {
          input = ((LiteralValue<?>) input).getValue();
        } else {
          if ("null".equals(((Statement) input).generate(context))) {
            return (Statement) input;
          }

          assertAssignableTypes(context, ((Statement) input).getType(), targetType);
          return (Statement) input;
        }
      }

      if (input != null
          && MetaClassFactory.get(input.getClass())
              .getOuterComponentType()
              .getFullyQualifiedName()
              .equals(MetaClass.class.getName())) {
        return generate(context, input);
      }

      if (Object.class.getName().equals(targetType.getFullyQualifiedName())) {
        return generate(context, input);
      }

      Class<?> inputClass = input == null ? Object.class : input.getClass();

      if (MetaClass.class.isAssignableFrom(inputClass)) {
        inputClass = Class.class;
      }

      final Class<?> targetClass = targetType.asBoxed().asClass();
      if (NullType.class.getName().equals(targetClass.getName())) {
        return generate(context, input);
      }

      if (!targetClass.isAssignableFrom(inputClass)
          && DataConversion.canConvert(targetClass, inputClass)) {
        return generate(context, DataConversion.convert(input, targetClass));
      } else {
        return generate(context, input);
      }
    } catch (NumberFormatException nfe) {
      throw new InvalidTypeException(nfe);
    }
  }