luabind/detail/operator_id.hpp

   1 // Copyright (c) 2003 Daniel Wallin and Arvid Norberg
   2
   3 // Permission is hereby granted, free of charge, to any person obtaining a
   4 // copy of this software and associated documentation files (the "Software"),
   5 // to deal in the Software without restriction, including without limitation
   6 // the rights to use, copy, modify, merge, publish, distribute, sublicense,
   7 // and/or sell copies of the Software, and to permit persons to whom the
   8 // Software is furnished to do so, subject to the following conditions:
   9
  10 // The above copyright notice and this permission notice shall be included
  11 // in all copies or substantial portions of the Software.
  12
  13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
  14 // ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
  15 // TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
  16 // PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
  17 // SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
  18 // ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
  19 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
  21 // OR OTHER DEALINGS IN THE SOFTWARE.
  22
  23
  24 #ifndef LUABIND_OPERATOR_ID_HPP_INCLUDED
  25 #define LUABIND_OPERATOR_ID_HPP_INCLUDED
  26
  27 #include <luabind/config.hpp>
  28
  29 namespace luabind { namespace detail {
  30
  31         enum operator_id
  32         {
  33                 op_add = 0,
  34                 op_sub,
  35                 op_mul,
  36                 op_div,
  37                 op_pow,
  38                 op_lt,
  39                 op_le,
  40                 op_eq,
  41                 op_call,
  42                 op_unm,
  43                 op_tostring,
  44         op_concat,
  45                 op_len,
  46
  47                 number_of_operators
  48         };
  49
  50         inline const char* get_operator_name(int i)
  51         {
  52                 static const char* a[number_of_operators] = {
  53             "__add", "__sub", "__mul", "__div", "__pow",
  54             "__lt", "__le", "__eq", "__call", "__unm",
  55             "__tostring", "__concat", "__len" };
  56                 return a[i];
  57         }
  58
  59         inline const char* get_operator_symbol(int i)
  60         {
  61                 static const char* a[number_of_operators] = {
  62             "+", "-", "*", "/", "^", "<",
  63             "<=", "==", "()", "- (unary)",
  64             "tostring", "..", "#" };
  65                 return a[i];
  66         }
  67
  68         inline bool is_unary(int i)
  69         {
  70                 // the reason why unary minus is not considered a unary operator here is
  71                 // that it always is given two parameters, where the second parameter always
  72                 // is nil.
  73                 return i == op_tostring;
  74         }
  75
  76
  77 }}
  78
  79 #endif // LUABIND_OPERATOR_ID_HPP_INCLUDED