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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
Context(const Context *parent = NULL, const class Module *library = NULL);
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, const Value &value);
void set_constant(const std::string &name, const Value &value);
Value lookup_variable(const std::string &name, bool silent = false) 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 class ModuleInstantiation &inst) const;
void setDocumentPath(const std::string &path) { this->document_path = path; }
std::string getAbsolutePath(const std::string &filename) const;
const Context *parent;
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 ModuleInstantiation *inst_p;
static std::vector<const Context*> ctx_stack;
typedef unordered_map<std::string, Value> ValueMap;
ValueMap constants;
ValueMap variables;
ValueMap config_variables;
std::string document_path;
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