mb_value_t

The mb_value_t data type is used to interchange data and variables between function callbacks and the MyBASIC2 Interpreter.  It can hold data of any of the supported data types.  Functions such as mb_pop_value, mb_push_value and mb_make_value_t uses this data type.  There are also supporting Macros to inetrchange data of type mb_value_t.

The mb_value_t structure is defined as a struct of the data type (mb_value_e), the variable name (mb_char_ptr) and the actual value (mb_value_u)

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// mb_value_e

//

typedef enum mb_data_e

  {

  MB_DT_NIL            = -1, // Invalid or no type

  MB_DT_UNKNOWN        = 0,  // Undefined type

  MB_DT_ANY            = 0,  // Any Type

  MB_DT_INT            = 1,  // Integer

  MB_DT_REAL           = 2,  // Floating point

  MB_DT_STRING         = 3,  // String

  MB_DT_REFERENCE      = 4,  // Reference pointer

  MB_DT_MODULE         = 5,  // Core, std or extension function

  MB_DT_HANDLE         = 6,  // Array, integer, real or string

  MB_DT_ARRAY          = 7   // Variable

  } mb_data_e;

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// mb_value_u union

//

typedef union mb_value_u

  {

  int_t                integer;

  real_t               float_point;

  char*                string;

  void*                reference;

  void*                module;

  handle_t             handle;

  void*                pointer;

  void*                array;

  }

  mb_value_u;

#define mb_char_ptr     char*

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// mb_value_t structure

//

typedef struct mb_value_t

  {

  mb_data_e            type;

  mb_char_ptr          name;

  mb_value_u           value;

  } mb_value_t;