src/builtin.h

   1
   2 #include <map>
   3
   4 #define BUILTIN_PROTO(funcname, ipname, selfname, argsname) \
   5     Interpreter::Value funcname( \
   6         Interpreter& ipname, \
   7         Interpreter::Value& selfname, \
   8         std::vector<Interpreter::Value>& argsname \
   9     )
  10
  11 #define BUILTIN_DECLARE(funcname) \
  12     BUILTIN_PROTO(funcname, _ip, _self, _args)
  13
  14 #define BUILTIN_EXISTS(shortname, funcname) \
  15     ( \
  16         rtbuiltin_##shortname##_methods.find(funcname) != rtbuiltin_##shortname##_methods.end() \
  17     )
  18
  19 #define BUILTIN_GET(shortname, funcname) \
  20     rtbuiltin_##shortname##_methods[funcname]
  21
  22 using BuiltinFunction = std::function<Interpreter::Value(
  23     Interpreter&,
  24     Interpreter::Value&,
  25     std::vector<Interpreter::Value>&
  26 )>;
  27
  28
  29 //! function protos for string builtins
  30 BUILTIN_DECLARE(rtbuiltin_func_string_length);
  31 BUILTIN_DECLARE(rtbuiltin_func_string_substr);
  32
  33 //! function protos for array builtins
  34 BUILTIN_DECLARE(rtbuiltin_func_array_length);
  35
  36 //! function protos for function type builtins (will also apply to tree type)
  37
  38 /** -------------------------------------- **/
  39
  40 //! builtin functions for strings
  41 static std::map<std::string, BuiltinFunction> rtbuiltin_string_methods =
  42 {
  43     {"length", rtbuiltin_func_string_length},
  44     {"size",   rtbuiltin_func_string_length},
  45     {"substr", rtbuiltin_func_string_substr},
  46 };
  47
  48
  49 // builtin functions for arrays
  50 static std::map<std::string, BuiltinFunction> rtbuiltin_array_methods =
  51 {
  52     {"length", rtbuiltin_func_array_length},
  53     {"size",   rtbuiltin_func_array_length},
  54 };
  55
  56 // builtin functions for tables
  57 static std::map<std::string, BuiltinFunction> rtbuiltin_table_methods =
  58 {
  59 };