#ifndef CONTEXT_H
#define CONTEXT_H
// A context for local variables, etc.
// Experimental concept; not sure if this is the correct way of representing it.
//
// Relationship to `Binding'?
#include <string>
#include <memory>
#include <exception>
#include "linked_ptr.h"
#include "stack.h"
#include "rvalue.h"
#include "renvironment.h"
#include "binding.h"
class Context
{
public:
Context(RubyEnvironment &);
Context(RubyEnvironment &, RubyValue, RubyModule *, Context *);
Context(linked_ptr<Binding> &);
const linked_ptr<RubyMethod> &get_method(const std::string &);
RubyValue entry_to_value(const Stack::StackEntry &);
RubyValue resolve_local(const std::string &);
RubyValue resolve_identifier(const std::string &);
RubyValue resolve_constant(const std::string &);
// these three not const - could result in method call.
void assign(const std::string &, RubyValue);
bool assign_if_exists(const std::string &, RubyValue);
linked_ptr<Binding> binding;
Context *outer_context;
};
class CannotFindLocalError : public std::exception
{ };
#endif
