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#ifndef EXPRESSIONBUILDER_H
#define EXPRESSIONBUILDER_H
#include "parsing.h"
#include "../VM/kernel.h"
#include "../VM/random_gen.h"
#include <vector>
#include <string>
#include <map>
namespace anl
{
class CExpressionBuilder
{
public:
CExpressionBuilder(CKernel &kernel);
~CExpressionBuilder();
CInstructionIndex eval(const std::string &expr);
CInstructionIndex evalAndStore(const std::string &expr);
void store(CInstructionIndex i);
std::vector<Token> getPostfix(const std::string &expr);
void setRandomSeed(unsigned int seed);
CInstructionIndex evalAndStoreVar(const std::string &varname, const std::string &expr);
void storeVar(const std::string &varname, CInstructionIndex idx);
CInstructionIndex retrieveVar(const std::string &varname);
private:
CKernel &kernel_;
std::vector<CInstructionIndex> index_;
std::map<std::string, int> f_; // Functions
std::vector<std::string> vars_;
std::map<std::string, CInstructionIndex> storedvars_;
KISS prng_;
void buildFunction(const std::string &token, std::stack<CInstructionIndex> &stk);
void buildVar(const std::string &token, std::stack<CInstructionIndex> &stk);
};
};
#endif
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