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#ifndef CONTEXT_H_
#define CONTEXT_H_
#include <string>
#include <vector>
#include <boost/unordered_map.hpp>
#include "value.h"
using boost::unordered_map;
class Context
{
public:
const Context *parent;
typedef unordered_map<std::string, Value> ValueMap;
ValueMap constants;
ValueMap variables;
ValueMap config_variables;
const unordered_map<std::string, class AbstractFunction*> *functions_p;
const unordered_map<std::string, class AbstractModule*> *modules_p;
typedef unordered_map<std::string, class Module*> ModuleContainer;
const ModuleContainer *usedlibs_p;
const class ModuleInstantiation *inst_p;
std::string document_path;
static std::vector<const Context*> ctx_stack;
Context(const Context *parent = NULL);
~Context();
void args(const std::vector<std::string> &argnames, const std::vector<class Expression*> &argexpr, const std::vector<std::string> &call_argnames, const std::vector<Value> &call_argvalues);
void set_variable(const std::string &name, Value value);
Value lookup_variable(const std::string &name, bool silent = false) const;
void set_constant(const std::string &name, Value value);
std::string get_absolute_path(const std::string &filename) const;
Value evaluate_function(const std::string &name, const std::vector<std::string> &argnames, const std::vector<Value> &argvalues) const;
class AbstractNode *evaluate_module(const ModuleInstantiation *inst) const;
};
#endif
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