static void checkTypeRef()

in asm-util/src/main/java/org/objectweb/asm/util/CheckClassAdapter.java [925:965]

• 41 lines of code
• 25 McCabe index (conditional complexity)

  static void checkTypeRef(final int typeRef) {
    int mask = 0;
    switch (typeRef >>> 24) {
      case TypeReference.CLASS_TYPE_PARAMETER:
      case TypeReference.METHOD_TYPE_PARAMETER:
      case TypeReference.METHOD_FORMAL_PARAMETER:
        mask = 0xFFFF0000;
        break;
      case TypeReference.FIELD:
      case TypeReference.METHOD_RETURN:
      case TypeReference.METHOD_RECEIVER:
      case TypeReference.LOCAL_VARIABLE:
      case TypeReference.RESOURCE_VARIABLE:
      case TypeReference.INSTANCEOF:
      case TypeReference.NEW:
      case TypeReference.CONSTRUCTOR_REFERENCE:
      case TypeReference.METHOD_REFERENCE:
        mask = 0xFF000000;
        break;
      case TypeReference.CLASS_EXTENDS:
      case TypeReference.CLASS_TYPE_PARAMETER_BOUND:
      case TypeReference.METHOD_TYPE_PARAMETER_BOUND:
      case TypeReference.THROWS:
      case TypeReference.EXCEPTION_PARAMETER:
        mask = 0xFFFFFF00;
        break;
      case TypeReference.CAST:
      case TypeReference.CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT:
      case TypeReference.METHOD_INVOCATION_TYPE_ARGUMENT:
      case TypeReference.CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT:
      case TypeReference.METHOD_REFERENCE_TYPE_ARGUMENT:
        mask = 0xFF0000FF;
        break;
      default:
        break;
    }
    if (mask == 0 || (typeRef & ~mask) != 0) {
      throw new IllegalArgumentException(
          "Invalid type reference 0x" + Integer.toHexString(typeRef));
    }
  }