Moving CBotStack class in its own header and source files.

src/CBot/CBot.cpp

@@ -72,6 +72,8 @@
 #include "CBotInstr/CBotInstArray.h"
 #include "CBotInstr/CBotInt.h"
 
+#include "CBotStack.h"
+
 
 // Local include
 

src/CBot/CBot.h

@@ -53,254 +53,7 @@ class CBotDefParam; // paramerer list of a function
 
 
 
-////////////////////////////////////////////////////////////////////////
-// Management of the execution stack
-////////////////////////////////////////////////////////////////////////
 
-// actually, externally, the only thing it can do
-// is to create an instance of a stack
-// to use for routine CBotProgram :: Execute (CBotStack)
-
-
-/**\class CBotStack
- * \brief Management of the execution stack.
- * \brief Actually the only thing it can do is to create an instance of a stack
- * \brief to use for routine CBotProgram :: Execute(CBotStack)*/
-class CBotStack
-{
-public:
-#if    STACKMEM
-    /**
-     * \brief FirstStack Allocate first stack
-     * \return pointer to created stack
-     */
-    static CBotStack * FirstStack();
-
-    /** \brief Delete Remove current stack */
-    void Delete();
-#endif
-
-    /**
-     * \brief CBotStack Constructor of the stack
-     * \param ppapa Not used.
-     */
-    CBotStack(CBotStack* ppapa);
-
-
-    /** \brief ~CBotStack Destructor */
-    ~CBotStack();
-
-    /**
-     * \brief StackOver Check if end of stack is reached
-     * \return true if end of stack
-     */
-    bool StackOver();
-
-    /**
-     * \brief GetError Get error number of the stack
-     * \param [out] start beginning of the stack
-     * \param [out] end end of stack
-     * \return error number
-     */
-    int GetError(int& start, int& end);
-
-    /**
-     * \brief GetError Get error number
-     * \return eror number
-     */
-    int GetError();// rend le numéro d'erreur retourné
-
-    /**
-     * \brief Reset Reset error at and set user
-     * \param [in] pUser User of stack
-     */
-    void Reset(void* pUser);
-
-    /**
-     * \brief SetType Determines the type.
-     * \param type Type of instruction on the stack.
-     */
-    void SetType(CBotTypResult& type);
-
-    /**
-     * \brief GetType Get the type of value on the stack.
-     * \param [in] mode Used when getting class type (1 gives pointer, 2 gives intrinsic).
-     * \return Type number.
-     */
-    int GetType(int mode = 0);
-
-    /**
-     * \brief Getes the type of complete value on the stack.
-     * \param [in] mode Used when getting class type (1 gives pointer, 2 gives intrinsic).
-     * \return  Type of an element.
-     */
-    CBotTypResult GetTypResult(int mode = 0);
-
-    /**
-     * \brief Adds a local variable.
-     * \param [in] p Variable to be added.
-     */
-    void AddVar(CBotVar* p);
-
-    /**
-     * \brief Fetch a variable by its token.
-     * \brief This may be a composite variable
-     * \param [in] pToken Token upon which search is performed
-     * \param [in] bUpdate Not used. Probably need to be removed
-     * \param [in] bModif Not used. Probably need to be removed
-     * \return Found variable
-     */
-    CBotVar* FindVar(CBotToken* &pToken, bool bUpdate = false,
-                                           bool bModif  = false);
-
-    /**
-     * \brief Fetch a variable by its token.
-     * \brief This may be a composite variable
-     * \param [in] pToken Token upon which search is performed
-     * \param [in] bUpdate Not used. Probably need to be removed
-     * \param [in] bModif Not used. Probably need to be removed
-     * \return Found variable
-     */
-    CBotVar* FindVar(CBotToken& pToken, bool bUpdate = false,
-                                              bool bModif  = false);
-
-    /**
-     * \brief Fetch variable by its name
-     * \param [in] name Name of variable to find
-     * \return Found variable
-     */
-    CBotVar* FindVar(const char* name);
-
-    /**
-     * \brief Fetch a variable on the stack according to its identification number
-     * \brief This is faster than comparing names
-     * \param [in] ident Identifier of a variable
-     * \param [in] bUpdate Not used. Probably need to be removed
-     * \param [in] bModif Not used. Probably need to be removed
-     * \return Found variable
-     */
-    CBotVar* FindVar(long ident, bool bUpdate = false,
-                                        bool bModif  = false);
-
-    /**
-     * \brief Find variable by its token and returns a copy of it.
-     * \param Token Token upon which search is performed
-     * \param bUpdate Not used.
-     * \return Found variable, nullptr if not found
-     */
-    CBotVar*        CopyVar(CBotToken& Token, bool bUpdate = false);
-
-
-    CBotStack*        AddStack(CBotInstr* instr = nullptr, bool bBlock = false);    // extends the stack
-    CBotStack*        AddStackEOX(CBotCall* instr = nullptr, bool bBlock = false);    // extends the stack
-    CBotStack*        RestoreStack(CBotInstr* instr = nullptr);
-    CBotStack*        RestoreStackEOX(CBotCall* instr = nullptr);
-
-    CBotStack*        AddStack2(bool bBlock = false);                        // extends the stack
-    bool            Return(CBotStack* pFils);                            // transmits the result over
-    bool            ReturnKeep(CBotStack* pFils);                        // transmits the result without reducing the stack
-    bool            BreakReturn(CBotStack* pfils, const char* name = nullptr);
-                                                                        // in case of eventual break
-    bool            IfContinue(int state, const char* name);
-                                                                        // or "continue"
-
-    bool            IsOk();
-
-    bool            SetState(int n, int lim = -10);                        // select a state
-    int                GetState();                                            // in what state am I?
-    bool            IncState(int lim = -10);                            // passes to the next state
-    bool            IfStep();                                            // do step by step
-    bool            Execute();
-
-    void            SetVar( CBotVar* var );
-    void            SetCopyVar( CBotVar* var );
-    CBotVar*        GetVar();
-    CBotVar*        GetCopyVar();
-    CBotVar*        GetPtVar();
-    bool            GetRetVar(bool bRet);
-    long            GetVal();
-
-    void            SetError(int n, CBotToken* token = nullptr);
-    void            SetPosError(CBotToken* token);
-    void            ResetError(int n, int start, int end);
-    void            SetBreak(int val, const char* name);
-
-    void            SetBotCall(CBotProgram* p);
-    CBotProgram*    GetBotCall(bool bFirst = false);
-    void*            GetPUser();
-    bool            GetBlock();
-
-
-    bool            ExecuteCall(long& nIdent, CBotToken* token, CBotVar** ppVar, CBotTypResult& rettype);
-    void            RestoreCall(long& nIdent, CBotToken* token, CBotVar** ppVar);
-
-    bool            SaveState(FILE* pf);
-    bool            RestoreState(FILE* pf, CBotStack* &pStack);
-
-    static
-    void            SetTimer(int n);
-
-    void            GetRunPos(const char* &FunctionName, int &start, int &end);
-    CBotVar*        GetStackVars(const char* &FunctionName, int level);
-
-    int                m_temp;
-
-private:
-    CBotStack*        m_next;
-    CBotStack*        m_next2;
-    CBotStack*        m_prev;
-    friend class CBotInstArray;
-
-#ifdef    _DEBUG
-    int                m_index;
-#endif
-    int                m_state;
-    int                m_step;
-    static int        m_error;
-    static int        m_start;
-    static int        m_end;
-    static
-    CBotVar*        m_retvar;                    // result of a return
-
-    CBotVar*        m_var;                        // result of the operations
-    CBotVar*        m_listVar;                    // variables declared at this level
-
-    bool            m_bBlock;                    // is part of a block (variables are local to this block)
-    bool            m_bOver;                    // stack limits?
-//    bool            m_bDontDelete;                // special, not to destroy the variable during delete
-    CBotProgram*    m_prog;                        // user-defined functions
-
-    static
-    int                m_initimer;
-    static
-    int                m_timer;
-    static
-    CBotString        m_labelBreak;
-    static
-    void*            m_pUser;
-
-    CBotInstr*        m_instr;                    // the corresponding instruction
-    bool            m_bFunc;                    // an input of a function?
-    CBotCall*        m_call;                        // recovery point in a extern call
-    friend class    CBotTry;
-};
-
-// inline routinees must be declared in file.h
-
-inline bool CBotStack::IsOk()
-{
-    return (m_error == 0);
-}
-
-inline int CBotStack::GetState()
-{
-    return m_state;
-}
-
-inline int CBotStack::GetError()
-{
-    return m_error;
-}
 
 ////////////////////////////////////////////////////////////////////////
 // Management of the stack of compilation

src/CBot/CBotFunction.cpp

@@ -29,6 +29,8 @@
 #include "CBotInstr/CBotEmpty.h"
 #include "CBotInstr/CBotListArray.h"
 
+#include "CBotStack.h"
+
 #include <cassert>
 
 

src/CBot/CBotInstr/CBotBoolean.cpp

@@ -23,6 +23,8 @@
 #include "CBotTwoOpExpr.h"
 #include "CBotInstArray.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotBreak.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotBreak.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotCase.cpp

@@ -21,6 +21,8 @@
 #include "CBotCase.h"
 #include "CBotExprNum.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotCatch.cpp

@@ -22,6 +22,8 @@
 #include "CBotBlock.h"
 #include "CBotExpression.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotClassInst.cpp

@@ -23,6 +23,8 @@
 #include "CBotTwoOpExpr.h"
 #include "CBotInstArray.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotDo.cpp

@@ -22,6 +22,8 @@
 #include "CBotBlock.h"
 #include "CBotCondition.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotEmpty.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotEmpty.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotExprAlpha.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotExprAlpha.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotExprBool.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotExprBool.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotExprNan.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotExprNan.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotExprNull.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotExprNull.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotExprNum.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotExprNum.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotExprUnaire.cpp

@@ -21,6 +21,8 @@
 #include "CBotExprUnaire.h"
 #include "CBotParExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotExprVar.cpp

@@ -24,6 +24,8 @@
 #include "CBotIndexExpr.h"
 #include "CBotFieldExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotExpression.cpp

@@ -21,6 +21,8 @@
 #include "CBotExpression.h"
 #include "CBotTwoOpExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotFieldExpr.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotFieldExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotFloat.cpp

@@ -23,6 +23,8 @@
 #include "CBotTwoOpExpr.h"
 #include "CBotInstArray.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotFor.cpp

@@ -23,6 +23,8 @@
 #include "CBotBlock.h"
 #include "CBotBoolExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotIString.cpp

@@ -22,6 +22,8 @@
 #include "CBotLeftExprVar.h"
 #include "CBotTwoOpExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotIf.cpp

@@ -22,6 +22,8 @@
 #include "CBotInstr/CBotBlock.h"
 #include "CBotInstr/CBotCondition.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotIndexExpr.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotIndexExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotInstArray.cpp

@@ -25,6 +25,8 @@
 #include "CBotListArray.h"
 #include "CBotEmpty.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotInstrCall.cpp

@@ -21,6 +21,8 @@
 #include "CBotInstrCall.h"
 #include "CBotExpression.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotInstrMethode.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotInstrMethode.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotInt.cpp

@@ -24,6 +24,8 @@
 #include "CBotInstArray.h"
 #include "CBotTwoOpExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotLeftExpr.cpp

@@ -23,6 +23,8 @@
 #include "CBotIndexExpr.h"
 #include "CBotExpression.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotLeftExprVar.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotLeftExprVar.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotListArray.cpp

@@ -23,6 +23,8 @@
 #include "CBotExprNull.h"
 #include "CBotTwoOpExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotListExpression.cpp

@@ -25,6 +25,8 @@
 #include "CBotBoolean.h"
 #include "CBotInt.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotListInstr.cpp

@@ -21,6 +21,8 @@
 #include "CBotListInstr.h"
 #include "CBotBlock.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotLogicExpr.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotLogicExpr.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotNew.cpp

@@ -20,6 +20,8 @@
 // Modules inlcude
 #include "CBotNew.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotParExpr.h

@@ -22,6 +22,8 @@
 // Modules inlcude
 #include "CBot.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotPostIncExpr.cpp

@@ -21,6 +21,8 @@
 #include "CBotPostIncExpr.h"
 #include "CBotExprVar.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotPreIncExpr.cpp

@@ -21,6 +21,8 @@
 #include "CBotPreIncExpr.h"
 #include "CBotExprVar.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotReturn.cpp

@@ -21,6 +21,8 @@
 #include "CBotReturn.h"
 #include "CBotExpression.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotSwitch.cpp

@@ -25,6 +25,8 @@
 #include "CBotBlock.h"
 #include "CBotExpression.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotThrow.cpp

@@ -21,6 +21,8 @@
 #include "CBotThrow.h"
 #include "CBotExpression.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotTry.cpp

@@ -21,6 +21,8 @@
 #include "CBotTry.h"
 #include "CBotBlock.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotInstr/CBotTwoOpExpr.cpp

@@ -22,7 +22,8 @@
 #include "CBotParExpr.h"
 #include "CBotLogicExpr.h"
 #include "CBotExpression.h"
-#include "CBot.h"
+
+#include "CBotStack.h"
 
 // Local include
 

src/CBot/CBotInstr/CBotWhile.cpp

@@ -22,6 +22,8 @@
 #include "CBotBlock.h"
 #include "CBotCondition.h"
 
+#include "CBotStack.h"
+
 // Local include
 
 // Global include

src/CBot/CBotProgram.cpp

@@ -21,6 +21,9 @@
 // database management of CBoT program
 
 #include "CBot.h"
+
+#include "CBotStack.h"
+
 #include <stdio.h>
 
 CBotProgram::CBotProgram()

src/CBot/CBotStack.cpp

@@ -17,11 +17,12 @@
  * along with this program. If not, see http://gnu.org/licenses
  */
 
-//Management of the stack
+// Modules inlcude
+#include "CBotStack.h"
 
+// Local include
 
-#include "CBot.h"
+// Global include
-
 #include <cassert>
 #include <cstdlib>
 #include <cstring>
@@ -29,10 +30,6 @@
 
 #define    ITIMER    100
 
-////////////////////////////////////////////////////////////////////////////
-// management of a execution of a stack
-////////////////////////////////////////////////////////////////////////////
-
 int         CBotStack::m_initimer = ITIMER;
 int         CBotStack::m_timer = 0;
 CBotVar*    CBotStack::m_retvar = nullptr;
@@ -44,6 +41,7 @@ void*       CBotStack::m_pUser = nullptr;
 
 #if    STACKMEM
 
+////////////////////////////////////////////////////////////////////////////////
 CBotStack* CBotStack::FirstStack()
 {
     CBotStack*    p;
@@ -82,17 +80,20 @@ CBotStack* CBotStack::FirstStack()
     return p;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotStack::CBotStack(CBotStack* ppapa)
 {
     // constructor must exist or the destructor is never called!
     assert(0);
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotStack::~CBotStack()
 {
     assert(0);    // use Delete () instead
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::Delete()
 {
     if ( this == nullptr || this == EOX ) return;
@@ -129,8 +130,8 @@ void CBotStack::Delete()
         free( this );
 }
 
-
 // routine improved
+////////////////////////////////////////////////////////////////////////////////
 CBotStack* CBotStack::AddStack(CBotInstr* instr, bool bBlock)
 {
     if (m_next != nullptr)
@@ -163,6 +164,7 @@ CBotStack* CBotStack::AddStack(CBotInstr* instr, bool bBlock)
     return    p;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotStack* CBotStack::AddStackEOX(CBotCall* instr, bool bBlock)
 {
     if (m_next != nullptr)
@@ -180,6 +182,7 @@ CBotStack* CBotStack::AddStackEOX(CBotCall* instr, bool bBlock)
     return    p;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotStack* CBotStack::AddStack2(bool bBlock)
 {
     if (m_next2 != nullptr)
@@ -203,11 +206,13 @@ CBotStack* CBotStack::AddStack2(bool bBlock)
     return    p;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::GetBlock()
 {
     return    m_bBlock;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::Return(CBotStack* pfils)
 {
     if ( pfils == this ) return true;    // special
@@ -222,6 +227,7 @@ bool CBotStack::Return(CBotStack* pfils)
     return (m_error == 0);                        // interrupted if error
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::ReturnKeep(CBotStack* pfils)
 {
     if ( pfils == this ) return true;    // special
@@ -233,6 +239,7 @@ bool CBotStack::ReturnKeep(CBotStack* pfils)
     return (m_error == 0);                        // interrupted if error
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::StackOver()
 {
     if (!m_bOver) return false;
@@ -242,6 +249,7 @@ bool CBotStack::StackOver()
 
 #else
 
+////////////////////////////////////////////////////////////////////////////////
 CBotStack::CBotStack(CBotStack* ppapa)
 {
     m_next  = nullptr;
@@ -265,6 +273,7 @@ CBotStack::CBotStack(CBotStack* ppapa)
     m_bFunc      = false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 // destructor
 CBotStack::~CBotStack()
 {
@@ -277,6 +286,7 @@ CBotStack::~CBotStack()
     if ( !m_bDontDelete ) delete m_listVar;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 // \TODO routine has/to optimize
 CBotStack* CBotStack::AddStack(CBotInstr* instr, bool bBlock)
 {
@@ -293,6 +303,7 @@ CBotStack* CBotStack::AddStack(CBotInstr* instr, bool bBlock)
     return    p;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotStack* CBotStack::AddStackEOX(CBotCall* instr, bool bBlock)
 {
     if (m_next != nullptr)
@@ -314,6 +325,7 @@ CBotStack* CBotStack::AddStackEOX(CBotCall* instr, bool bBlock)
     return    p;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotStack* CBotStack::AddStack2(bool bBlock)
 {
     if (m_next2 != nullptr)
@@ -331,6 +343,7 @@ CBotStack* CBotStack::AddStack2(bool bBlock)
     return    p;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::Return(CBotStack* pfils)
 {
     if ( pfils == this ) return true;    // special
@@ -345,6 +358,7 @@ bool CBotStack::Return(CBotStack* pfils)
     return (m_error == 0);                        // interrupted if error
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::StackOver()
 {
     return false;            // no overflow check in this version
@@ -352,6 +366,7 @@ bool CBotStack::StackOver()
 
 #endif
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::Reset(void* pUser)
 {
     m_timer = m_initimer;        // resets the timer
@@ -362,9 +377,7 @@ void CBotStack::Reset(void* pUser)
     m_pUser = pUser;
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
-
-
 CBotStack* CBotStack::RestoreStack(CBotInstr* instr)
 {
     if (m_next != nullptr)
@@ -376,6 +389,7 @@ CBotStack* CBotStack::RestoreStack(CBotInstr* instr)
     return    nullptr;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotStack* CBotStack::RestoreStackEOX(CBotCall* instr)
 {
     CBotStack*     p = RestoreStack();
@@ -383,8 +397,7 @@ CBotStack* CBotStack::RestoreStackEOX(CBotCall* instr)
     return p;
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
-
 // routine for execution step by step
 bool CBotStack::IfStep()
 {
@@ -392,7 +405,7 @@ bool CBotStack::IfStep()
     return true;
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::BreakReturn(CBotStack* pfils, const char* name)
 {
     if ( m_error>=0 ) return false;                // normal output
@@ -406,6 +419,7 @@ bool CBotStack::BreakReturn(CBotStack* pfils, const char* name)
     return Return(pfils);
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::IfContinue(int state, const char* name)
 {
     if ( m_error != -2 ) return false;
@@ -420,6 +434,7 @@ bool CBotStack::IfContinue(int state, const char* name)
     return true;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::SetBreak(int val, const char* name)
 {
     m_error = -val;                                // reacts as an Exception
@@ -432,7 +447,7 @@ void CBotStack::SetBreak(int val, const char* name)
 }
 
 // gives on the stack value calculated by the last CBotReturn
-
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::GetRetVar(bool bRet)
 {
     if (m_error == -3)
@@ -446,6 +461,7 @@ bool CBotStack::GetRetVar(bool bRet)
     return bRet;                        // interrupted by something other than return
 }
 
+////////////////////////////////////////////////////////////////////////////////
 int CBotStack::GetError(int& start, int& end)
 {
     start = m_start;
@@ -453,26 +469,28 @@ int CBotStack::GetError(int& start, int& end)
     return m_error;
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 int CBotStack::GetType(int mode)
 {
     if (m_var == nullptr) return -1;
     return m_var->GetType(mode);
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotTypResult CBotStack::GetTypResult(int mode)
 {
     if (m_var == nullptr) return -1;
     return m_var->GetTypResult(mode);
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::SetType(CBotTypResult& type)
 {
     if (m_var == nullptr) return;
     m_var->SetType( type );
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotStack::FindVar(CBotToken* &pToken, bool bUpdate, bool bModif)
 {
     CBotStack*    p = this;
@@ -497,6 +515,7 @@ CBotVar* CBotStack::FindVar(CBotToken* &pToken, bool bUpdate, bool bModif)
     return nullptr;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotStack::FindVar(const char* name)
 {
     CBotStack*    p = this;
@@ -516,6 +535,7 @@ CBotVar* CBotStack::FindVar(const char* name)
     return nullptr;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotStack::FindVar(long ident, bool bUpdate, bool bModif)
 {
     CBotStack*    p = this;
@@ -538,14 +558,14 @@ CBotVar* CBotStack::FindVar(long ident, bool bUpdate, bool bModif)
     return nullptr;
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotStack::FindVar(CBotToken& pToken, bool bUpdate, bool bModif)
 {
     CBotToken*    pt = &pToken;
     return FindVar(pt, bUpdate, bModif);
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotStack::CopyVar(CBotToken& Token, bool bUpdate)
 {
     CBotVar*    pVar = FindVar( Token, bUpdate );
@@ -557,7 +577,7 @@ CBotVar* CBotStack::CopyVar(CBotToken& Token, bool bUpdate)
     return    pCopy;
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::SetState(int n, int limite)
 {
     m_state = n;
@@ -566,6 +586,7 @@ bool CBotStack::SetState(int n, int limite)
     return ( m_timer > limite );                    // interrupted if timer pass
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::IncState(int limite)
 {
     m_state++;
@@ -574,7 +595,7 @@ bool CBotStack::IncState(int limite)
     return ( m_timer > limite );                    // interrupted if timer pass
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::SetError(int n, CBotToken* token)
 {
     if ( n!= 0 && m_error != 0) return;    // does not change existing error
@@ -586,6 +607,7 @@ void CBotStack::SetError(int n, CBotToken* token)
     }
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::ResetError(int n, int start, int end)
 {
     m_error = n;
@@ -593,17 +615,20 @@ void CBotStack::ResetError(int n, int start, int end)
     m_end    = end;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::SetPosError(CBotToken* token)
 {
     m_start = token->GetStart();
     m_end   = token->GetEnd();
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::SetTimer(int n)
 {
     m_initimer = n;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::Execute()
 {
     CBotCall*        instr = nullptr;                        // the most highest instruction
@@ -637,6 +662,7 @@ bool CBotStack::Execute()
 }
 
 // puts on the stack pointer to a variable
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::SetVar( CBotVar* var )
 {
     if (m_var) delete m_var;    // replacement of a variable
@@ -644,6 +670,7 @@ void CBotStack::SetVar( CBotVar* var )
 }
 
 // puts on the stack a copy of a variable
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::SetCopyVar( CBotVar* var )
 {
     if (m_var) delete m_var;    // replacement of a variable
@@ -652,11 +679,13 @@ void CBotStack::SetCopyVar( CBotVar* var )
     m_var->Copy( var );
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotStack::GetVar()
 {
     return m_var;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotStack::GetPtVar()
 {
     CBotVar*    p = m_var;
@@ -664,6 +693,7 @@ CBotVar* CBotStack::GetPtVar()
     return p;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotStack::GetCopyVar()
 {
     if (m_var == nullptr) return nullptr;
@@ -672,15 +702,14 @@ CBotVar* CBotStack::GetCopyVar()
     return v;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 long CBotStack::GetVal()
 {
     if (m_var == nullptr) return 0;
     return m_var->GetValInt();
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
-
-
 void CBotStack::AddVar(CBotVar* pVar)
 {
     CBotStack*    p = this;
@@ -702,19 +731,14 @@ void CBotStack::AddVar(CBotVar* pVar)
 #endif
 }
 
-/*void CBotStack::RestoreVar(CBotVar* pVar)
+////////////////////////////////////////////////////////////////////////////////
-{
-    if ( !m_bDontDelete ) __asm int 3;
-    delete    m_listVar;
-    m_listVar = pVar;        // direct replacement
-}*/
-
 void CBotStack::SetBotCall(CBotProgram* p)
 {
     m_prog  = p;
     m_bFunc = true;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotProgram*  CBotStack::GetBotCall(bool bFirst)
 {
     if ( ! bFirst )    return m_prog;
@@ -723,12 +747,13 @@ CBotProgram*  CBotStack::GetBotCall(bool bFirst)
     return p->m_prog;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void* CBotStack::GetPUser()
 {
     return m_pUser;
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::ExecuteCall(long& nIdent, CBotToken* token, CBotVar** ppVar, CBotTypResult& rettype)
 {
     CBotTypResult        res;
@@ -754,6 +779,7 @@ bool CBotStack::ExecuteCall(long& nIdent, CBotToken* token, CBotVar** ppVar, CBo
     return true;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::RestoreCall(long& nIdent, CBotToken* token, CBotVar** ppVar)
 {
     if ( m_next == nullptr ) return;
@@ -762,7 +788,7 @@ void CBotStack::RestoreCall(long& nIdent, CBotToken* token, CBotVar** ppVar)
         m_prog->GetFunctions()->RestoreCall(nIdent, token->GetString(), ppVar, this );
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 bool SaveVar(FILE* pf, CBotVar* pVar)
 {
     while ( true )
@@ -779,6 +805,7 @@ bool SaveVar(FILE* pf, CBotVar* pVar)
     }
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotStack::GetRunPos(const char* &FunctionName, int &start, int &end)
 {
     CBotProgram*    prog = m_prog;                        // Current program
@@ -813,6 +840,7 @@ void CBotStack::GetRunPos(const char* &FunctionName, int &start, int &end)
     end   = t->GetEnd();
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotStack::GetStackVars(const char* &FunctionName, int level)
 {
     CBotProgram*    prog = m_prog;                        // current program
@@ -860,6 +888,7 @@ CBotVar* CBotStack::GetStackVars(const char* &FunctionName, int level)
     return p->m_listVar;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::SaveState(FILE* pf)
 {
     if ( this == nullptr )                                    // end of the tree?
@@ -888,7 +917,7 @@ bool CBotStack::SaveState(FILE* pf)
     return m_next->SaveState(pf);                        // saves the following
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 bool CBotStack::RestoreState(FILE* pf, CBotStack* &pStack)
 {
     unsigned short    w;
@@ -927,7 +956,7 @@ bool CBotStack::RestoreState(FILE* pf, CBotStack* &pStack)
     return pStack->RestoreState(pf, pStack->m_next);
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 bool CBotVar::Save0State(FILE* pf)
 {
     if (!WriteWord(pf, 100+m_mPrivate))return false;        // private variable?
@@ -937,6 +966,7 @@ bool CBotVar::Save0State(FILE* pf)
     return WriteString(pf, m_token->GetString());            // and variable name
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotVarInt::Save0State(FILE* pf)
 {
     if ( !m_defnum.IsEmpty() )
@@ -948,28 +978,31 @@ bool CBotVarInt::Save0State(FILE* pf)
     return CBotVar::Save0State(pf);
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotVarInt::Save1State(FILE* pf)
 {
     return WriteWord(pf, m_val);                            // the value of the variable
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotVarBoolean::Save1State(FILE* pf)
 {
     return WriteWord(pf, m_val);                            // the value of the variable
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotVarFloat::Save1State(FILE* pf)
 {
     return WriteFloat(pf, m_val);                            // the value of the variable
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotVarString::Save1State(FILE* pf)
 {
     return WriteString(pf, m_val);                            // the value of the variable
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
-
 bool CBotVarClass::Save1State(FILE* pf)
 {
     if ( !WriteType(pf, m_type) ) return false;
@@ -1004,6 +1037,7 @@ bool ParseInitType(int rawInitType, CBotVar::InitType* initType)
 }
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotVar::RestoreState(FILE* pf, CBotVar* &pVar)
 {
     unsigned short        w, wi, prv, st;
@@ -1152,7 +1186,7 @@ int                CBotCStack::m_end      = 0;
 CBotTypResult    CBotCStack::m_retTyp  = CBotTypResult(0);
 //CBotToken*        CBotCStack::m_retClass= nullptr;
 
-
+////////////////////////////////////////////////////////////////////////////////
 CBotCStack::CBotCStack(CBotCStack* ppapa)
 {
     m_next = nullptr;
@@ -1175,6 +1209,7 @@ CBotCStack::CBotCStack(CBotCStack* ppapa)
     m_var      = nullptr;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 // destructor
 CBotCStack::~CBotCStack()
 {
@@ -1185,6 +1220,7 @@ CBotCStack::~CBotCStack()
     delete m_listVar;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 // used only at compile
 CBotCStack* CBotCStack::TokenStack(CBotToken* pToken, bool bBlock)
 {
@@ -1199,7 +1235,7 @@ CBotCStack* CBotCStack::TokenStack(CBotToken* pToken, bool bBlock)
     return    p;
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 CBotInstr* CBotCStack::Return(CBotInstr* inst, CBotCStack* pfils)
 {
     if ( pfils == this ) return inst;
@@ -1218,6 +1254,7 @@ CBotInstr* CBotCStack::Return(CBotInstr* inst, CBotCStack* pfils)
     return inst;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotFunction* CBotCStack::ReturnFunc(CBotFunction* inst, CBotCStack* pfils)
 {
     if (m_var != nullptr) delete m_var;            // value replaced?
@@ -1234,6 +1271,7 @@ CBotFunction* CBotCStack::ReturnFunc(CBotFunction* inst, CBotCStack* pfils)
     return inst;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 int CBotCStack::GetError(int& start, int& end)
 {
     start = m_start;
@@ -1241,11 +1279,13 @@ int CBotCStack::GetError(int& start, int& end)
     return m_error;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 int CBotCStack::GetError()
 {
     return m_error;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 // type of instruction on the stack
 CBotTypResult CBotCStack::GetTypResult(int mode)
 {
@@ -1254,6 +1294,7 @@ CBotTypResult CBotCStack::GetTypResult(int mode)
     return    m_var->GetTypResult(mode);
 }
 
+////////////////////////////////////////////////////////////////////////////////
 // type of instruction on the stack
 int CBotCStack::GetType(int mode)
 {
@@ -1262,6 +1303,7 @@ int CBotCStack::GetType(int mode)
     return    m_var->GetType(mode);
 }
 
+////////////////////////////////////////////////////////////////////////////////
 // pointer on the stack is in what class?
 CBotClass* CBotCStack::GetClass()
 {
@@ -1272,6 +1314,7 @@ CBotClass* CBotCStack::GetClass()
     return m_var->GetClass();
 }
 
+////////////////////////////////////////////////////////////////////////////////
 // type of instruction on the stack
 void CBotCStack::SetType(CBotTypResult& type)
 {
@@ -1282,7 +1325,7 @@ void CBotCStack::SetType(CBotTypResult& type)
 // seeks a variable on the stack
 // the token may be a result of TokenTypVar (object of a class)
 // or a pointer in the source
-
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotCStack::FindVar(CBotToken* &pToken)
 {
     CBotCStack*    p = this;
@@ -1304,12 +1347,14 @@ CBotVar* CBotCStack::FindVar(CBotToken* &pToken)
     return nullptr;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotCStack::FindVar(CBotToken& Token)
 {
     CBotToken*    pt = &Token;
     return FindVar(pt);
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotCStack::CopyVar(CBotToken& Token)
 {
     CBotVar*    pVar = FindVar( Token );
@@ -1321,18 +1366,20 @@ CBotVar* CBotCStack::CopyVar(CBotToken& Token)
     return    pCopy;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotCStack::IsOk()
 {
     return (m_error == 0);
 }
 
-
+////////////////////////////////////////////////////////////////////////////////
 void CBotCStack::SetStartError( int pos )
 {
     if ( m_error != 0) return;            // does not change existing error
     m_start = pos;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotCStack::SetError(int n, int pos)
 {
     if ( n!= 0 && m_error != 0) return;    // does not change existing error
@@ -1340,6 +1387,7 @@ void CBotCStack::SetError(int n, int pos)
     m_end    = pos;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotCStack::SetError(int n, CBotToken* p)
 {
     if (m_error) return;    // does not change existing error
@@ -1348,6 +1396,7 @@ void CBotCStack::SetError(int n, CBotToken* p)
     m_end    = p->GetEnd();
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotCStack::ResetError(int n, int start, int end)
 {
     m_error = n;
@@ -1355,6 +1404,7 @@ void CBotCStack::ResetError(int n, int start, int end)
     m_end    = end;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 bool CBotCStack::NextToken(CBotToken* &p)
 {
     CBotToken*    pp = p;
@@ -1366,32 +1416,38 @@ bool CBotCStack::NextToken(CBotToken* &p)
     return false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotCStack::SetBotCall(CBotProgram* p)
 {
     m_prog = p;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotProgram* CBotCStack::GetBotCall()
 {
     return m_prog;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotCStack::SetRetType(CBotTypResult& type)
 {
     m_retTyp = type;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotTypResult CBotCStack::GetRetType()
 {
     return m_retTyp;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotCStack::SetVar( CBotVar* var )
 {
     if (m_var) delete m_var;    // replacement of a variable
     m_var = var;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 // puts on the stack a copy of a variable
 void CBotCStack::SetCopyVar( CBotVar* var )
 {
@@ -1402,11 +1458,13 @@ void CBotCStack::SetCopyVar( CBotVar* var )
     m_var->Copy( var );
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotVar* CBotCStack::GetVar()
 {
     return m_var;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 void CBotCStack::AddVar(CBotVar* pVar)
 {
     CBotCStack*    p = this;
@@ -1427,7 +1485,7 @@ void CBotCStack::AddVar(CBotVar* pVar)
 }
 
 // test whether a variable is already defined locally
-
+////////////////////////////////////////////////////////////////////////////////
 bool CBotCStack::CheckVarLocal(CBotToken* &pToken)
 {
     CBotCStack*    p = this;
@@ -1448,6 +1506,7 @@ bool CBotCStack::CheckVarLocal(CBotToken* &pToken)
     return false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
 CBotTypResult CBotCStack::CompileCall(CBotToken* &p, CBotVar** ppVars, long& nIdent)
 {
     nIdent = 0;
@@ -1469,7 +1528,7 @@ CBotTypResult CBotCStack::CompileCall(CBotToken* &p, CBotVar** ppVars, long& nId
 }
 
 // test if a procedure name is already defined somewhere
-
+////////////////////////////////////////////////////////////////////////////////
 bool CBotCStack::CheckCall(CBotToken* &pToken, CBotDefParam* pParam)
 {
     CBotString    name = pToken->GetString();

src/CBot/CBotStack.h

@@ -0,0 +1,270 @@
+/*
+ * This file is part of the Colobot: Gold Edition source code
+ * Copyright (C) 2001-2015, Daniel Roux, EPSITEC SA & TerranovaTeam
+ * http://epsitec.ch; http://colobot.info; http://github.com/colobot
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://gnu.org/licenses
+ */
+
+#pragma once
+
+// Modules inlcude
+#include "CBot.h"
+
+// Local include
+
+// Global include
+
+
+/*!
+ * \class CBotStack
+ * \brief The CBotStack class Management of the execution stack. Actually the
+ * only thing it can do is to create an instance of a stack. To use for routine
+ * CBotProgram :: Execute(CBotStack)
+ */
+class CBotStack
+{
+public:
+#if    STACKMEM
+    /**
+     * \brief FirstStack Allocate first stack
+     * \return pointer to created stack
+     */
+    static CBotStack * FirstStack();
+
+    /** \brief Delete Remove current stack */
+    void Delete();
+#endif
+
+    /**
+     * \brief CBotStack Constructor of the stack
+     * \param ppapa Not used.
+     */
+    CBotStack(CBotStack* ppapa);
+
+
+    /** \brief ~CBotStack Destructor */
+    ~CBotStack();
+
+    /**
+     * \brief StackOver Check if end of stack is reached
+     * \return true if end of stack
+     */
+    bool StackOver();
+
+    /**
+     * \brief GetError Get error number of the stack
+     * \param [out] start beginning of the stack
+     * \param [out] end end of stack
+     * \return error number
+     */
+    int GetError(int& start, int& end);
+
+    /**
+     * \brief GetError Get error number
+     * \return eror number
+     */
+    int GetError();// rend le numéro d'erreur retourné
+
+    /**
+     * \brief Reset Reset error at and set user
+     * \param [in] pUser User of stack
+     */
+    void Reset(void* pUser);
+
+    /**
+     * \brief SetType Determines the type.
+     * \param type Type of instruction on the stack.
+     */
+    void SetType(CBotTypResult& type);
+
+    /**
+     * \brief GetType Get the type of value on the stack.
+     * \param [in] mode Used when getting class type (1 gives pointer, 2 gives intrinsic).
+     * \return Type number.
+     */
+    int GetType(int mode = 0);
+
+    /**
+     * \brief Getes the type of complete value on the stack.
+     * \param [in] mode Used when getting class type (1 gives pointer, 2 gives intrinsic).
+     * \return  Type of an element.
+     */
+    CBotTypResult GetTypResult(int mode = 0);
+
+    /**
+     * \brief Adds a local variable.
+     * \param [in] p Variable to be added.
+     */
+    void AddVar(CBotVar* p);
+
+    /**
+     * \brief Fetch a variable by its token.
+     * \brief This may be a composite variable
+     * \param [in] pToken Token upon which search is performed
+     * \param [in] bUpdate Not used. Probably need to be removed
+     * \param [in] bModif Not used. Probably need to be removed
+     * \return Found variable
+     */
+    CBotVar* FindVar(CBotToken* &pToken, bool bUpdate = false,
+                                           bool bModif  = false);
+
+    /**
+     * \brief Fetch a variable by its token.
+     * \brief This may be a composite variable
+     * \param [in] pToken Token upon which search is performed
+     * \param [in] bUpdate Not used. Probably need to be removed
+     * \param [in] bModif Not used. Probably need to be removed
+     * \return Found variable
+     */
+    CBotVar* FindVar(CBotToken& pToken, bool bUpdate = false,
+                                              bool bModif  = false);
+
+    /**
+     * \brief Fetch variable by its name
+     * \param [in] name Name of variable to find
+     * \return Found variable
+     */
+    CBotVar* FindVar(const char* name);
+
+    /**
+     * \brief Fetch a variable on the stack according to its identification number
+     * \brief This is faster than comparing names
+     * \param [in] ident Identifier of a variable
+     * \param [in] bUpdate Not used. Probably need to be removed
+     * \param [in] bModif Not used. Probably need to be removed
+     * \return Found variable
+     */
+    CBotVar* FindVar(long ident, bool bUpdate = false,
+                                        bool bModif  = false);
+
+    /**
+     * \brief Find variable by its token and returns a copy of it.
+     * \param Token Token upon which search is performed
+     * \param bUpdate Not used.
+     * \return Found variable, nullptr if not found
+     */
+    CBotVar*        CopyVar(CBotToken& Token, bool bUpdate = false);
+
+
+    CBotStack*        AddStack(CBotInstr* instr = nullptr, bool bBlock = false);    // extends the stack
+    CBotStack*        AddStackEOX(CBotCall* instr = nullptr, bool bBlock = false);    // extends the stack
+    CBotStack*        RestoreStack(CBotInstr* instr = nullptr);
+    CBotStack*        RestoreStackEOX(CBotCall* instr = nullptr);
+
+    CBotStack*        AddStack2(bool bBlock = false);                        // extends the stack
+    bool            Return(CBotStack* pFils);                            // transmits the result over
+    bool            ReturnKeep(CBotStack* pFils);                        // transmits the result without reducing the stack
+    bool            BreakReturn(CBotStack* pfils, const char* name = nullptr);
+                                                                        // in case of eventual break
+    bool            IfContinue(int state, const char* name);
+                                                                        // or "continue"
+
+    bool            IsOk();
+
+    bool            SetState(int n, int lim = -10);                        // select a state
+    int             GetState();                                            // in what state am I?
+    bool            IncState(int lim = -10);                            // passes to the next state
+    bool            IfStep();                                            // do step by step
+    bool            Execute();
+
+    void            SetVar( CBotVar* var );
+    void            SetCopyVar( CBotVar* var );
+    CBotVar*        GetVar();
+    CBotVar*        GetCopyVar();
+    CBotVar*        GetPtVar();
+    bool            GetRetVar(bool bRet);
+    long            GetVal();
+
+    void            SetError(int n, CBotToken* token = nullptr);
+    void            SetPosError(CBotToken* token);
+    void            ResetError(int n, int start, int end);
+    void            SetBreak(int val, const char* name);
+
+    void            SetBotCall(CBotProgram* p);
+    CBotProgram*    GetBotCall(bool bFirst = false);
+    void*           GetPUser();
+    bool            GetBlock();
+
+
+    bool            ExecuteCall(long& nIdent, CBotToken* token, CBotVar** ppVar, CBotTypResult& rettype);
+    void            RestoreCall(long& nIdent, CBotToken* token, CBotVar** ppVar);
+
+    bool            SaveState(FILE* pf);
+    bool            RestoreState(FILE* pf, CBotStack* &pStack);
+
+    static
+    void            SetTimer(int n);
+
+    void            GetRunPos(const char* &FunctionName, int &start, int &end);
+    CBotVar*        GetStackVars(const char* &FunctionName, int level);
+
+    int                m_temp;
+
+private:
+    CBotStack*        m_next;
+    CBotStack*        m_next2;
+    CBotStack*        m_prev;
+    friend class CBotInstArray;
+
+#ifdef    _DEBUG
+    int                m_index;
+#endif
+    int                m_state;
+    int                m_step;
+    static int        m_error;
+    static int        m_start;
+    static int        m_end;
+    static
+    CBotVar*        m_retvar;                    // result of a return
+
+    CBotVar*        m_var;                        // result of the operations
+    CBotVar*        m_listVar;                    // variables declared at this level
+
+    bool            m_bBlock;                    // is part of a block (variables are local to this block)
+    bool            m_bOver;                    // stack limits?
+//    bool            m_bDontDelete;                // special, not to destroy the variable during delete
+    CBotProgram*    m_prog;                        // user-defined functions
+
+    static
+    int                m_initimer;
+    static
+    int                m_timer;
+    static
+    CBotString        m_labelBreak;
+    static
+    void*            m_pUser;
+
+    CBotInstr*        m_instr;                    // the corresponding instruction
+    bool            m_bFunc;                    // an input of a function?
+    CBotCall*        m_call;                        // recovery point in a extern call
+    friend class    CBotTry;
+};
+
+// inline routinees must be declared in file.h
+
+inline bool CBotStack::IsOk()
+{
+    return (m_error == 0);
+}
+
+inline int CBotStack::GetState()
+{
+    return m_state;
+}
+
+inline int CBotStack::GetError()
+{
+    return m_error;
+}

src/CBot/CBotVar.cpp

@@ -25,6 +25,8 @@
 
 #include "CBot.h"
 
+#include "CBotStack.h"
+
 #include <cassert>
 #include <cmath>
 #include <cstdio>