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#ifndef INTERPRETER_RUNTIME_H_INCLUDED
#define INTERPRETER_RUNTIME_H_INCLUDED
#include <string_view>
#include <vector>
#include "types.hpp"
namespace Interpreter
{
class Context;
struct Program;
/// Runtime data and engine interface
class Runtime
{
Context* mContext = nullptr;
const Program* mProgram = nullptr;
int mPC = 0;
std::vector<Data> mStack;
public:
int getPC() const { return mPC; }
///< return program counter.
int getIntegerLiteral(int index) const;
float getFloatLiteral(int index) const;
std::string_view getStringLiteral(int index) const;
void configure(const Program& program, Context& context);
///< \a context and \a code must exist as least until either configure, clear or
/// the destructor is called.
void clear();
void setPC(int value) { mPC = value; }
///< set program counter.
void push(const Data& data);
///< push data on stack
void push(Type_Integer value);
///< push integer data on stack.
void push(Type_Float value);
///< push float data on stack.
void pop();
///< pop stack
Data& operator[](int index);
///< Access stack member, counted from the top.
Context& getContext();
};
}
#endif
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