git.r.bdr.sh - rbdr/pico-engine/blob - LuaVirtualMachine.h

   1 // ---------------------------------------------------------------------------
   2 // FILE NAME            : LuaVirtualMachine.h
   3 // ---------------------------------------------------------------------------
   4 // DESCRIPTION :
   5 //
   6 // Lua virtual machine implementation
   7 //
   8 // ---------------------------------------------------------------------------
   9 // VERSION              : 1.00
  10 // DATE                 : 1-Sep-2005
  11 // AUTHOR               : Richard Shephard
  12 // ---------------------------------------------------------------------------
  13 // LIBRARY INCLUDE FILES
  14 #ifndef __LUA_VIRTUAL_MACHINE_H__
  15 #define __LUA_VIRTUAL_MACHINE_H__
  16
  17 #include "luainc.h"
  18 #include "LuaDebugger.h"
  19
  20 class CLuaDebugger;
  21
  22 class CLuaVirtualMachine
  23 {
  24 public:
  25    CLuaVirtualMachine (void);
  26    virtual ~CLuaVirtualMachine (void);
  27
  28    bool InitialiseVM (void);
  29    bool DestroyVM (void);
  30
  31    // Load and run script elements
  32    bool RunFile (const char *strFilename);
  33    bool RunBuffer (const unsigned char *pbBuffer, size_t szLen, const char *strName = NULL);
  34
  35    // C-Api into script
  36    bool CallFunction (int nArgs, int nReturns = 0);
  37
  38    // Get the state of the lua stack (use the cast operator)
  39    //lua_State *GetState (void) { return m_pState; }
  40    operator lua_State *(void) { return m_pState; }
  41
  42    static void Panic (lua_State *lua);
  43
  44    // Check if the VM is OK and can be used still
  45    virtual bool Ok (void) { return m_fIsOk; }
  46
  47    // For debugging
  48    void AttachDebugger (CLuaDebugger *dbg) { m_pDbg = dbg; }
  49
  50 protected:
  51    lua_State *m_pState;
  52    bool m_fIsOk;
  53    CLuaDebugger *m_pDbg;
  54 };
  55
  56
  57 #endif // __LUA_VIRTUAL_MACHINE_H__