s4g_optimizer.h

См. документацию.

/*
Copyright © Vitaliy Buturlin, Evgeny Danilovich, 2017
license MIT see in LICENSE or
https://s4g.su/
*/
#ifndef s4g_optimizer_h
#define s4g_optimizer_h


#include "s4g_parser.h"

class s4g_Optimizer
{
public:
    static void optimize(s4g_Main *ps4gm);
    static bool nodeCallback(s4g_BaseNode **ppNode);

    static bool isConstNode(S4G_NODE_TYPE node_type);

    static s4g_BaseNode *calcNode(s4g_BaseNode *pNode);

    static void testBlock(s4g_BaseNode **ppNode);
    static void testStmt(s4g_BaseNode **ppNode);
    static void testFor(s4g_BaseNode **ppNode);
    static void testIf(s4g_BaseNode **ppNode);

    static void testTable(s4g_BaseNode **ppNode);

    static bool listUsedVarsCallback(s4g_BaseNode **ppNode);
    static bool checkForSideEffectsCallback(s4g_BaseNode **ppNode);

    static bool constToBool(s4g_BaseNode *pNode);

    static void warning(s4g_BaseNode *pNode, const char *szMsg);
protected:
    static int m_iUpdates;
    static s4g_Main *s4gm;

    static s4g_Stack<const char*> m_stUsedVars;
    static bool m_bExprHasSideEffects;

    static s4g_Stack<const char*> m_stSafeVars; 
};


#endif