variables.h

#pragma once
 
#include <string>
#include <vector>
#include "variant.h"
 
#include "lib_begin.h"
 
namespace cgv {
    namespace ppp {
 
        struct namespace_info
        {
            bool is_function_call_ns;
            variant::map_type* ns;
            bool ns_allocated;
            namespace_info* environment_ns;
            namespace_info* parent_ns;
            namespace_info* child_ns;
 
            namespace_info* get_environment() {
                if (is_function_call_ns)
                    return environment_ns;
                return this;
            }
            // construct from central information
            namespace_info(bool _is_function_call_ns, variant::map_type* _ns = 0, namespace_info* _environment_ns = 0, namespace_info* _parent_ns = 0);
            // destruct variable map in case of function call namespaces
            ~namespace_info();
        };
 
        extern CGV_API namespace_info* get_current_namespace();
 
        extern CGV_API void set_current_namespace(namespace_info* _cns);
 
 
        extern CGV_API variant* find_variable(const std::string& name, bool only_current = false);
 
        extern CGV_API variant& ref_variable(const std::string& name, bool only_current = false);
 
        extern CGV_API void clear_variables();
 
        extern CGV_API void init_environment(int argc, char** argv);
 
        extern CGV_API void push_namespace(variant* ns_var, namespace_info* environment_ns = 0);
 
        extern CGV_API void pop_namespace();
 
        extern CGV_API bool has_child_namespace();
 
        extern CGV_API void goto_child_namespace();
 
        extern CGV_API bool has_parent_namespace();
 
        extern CGV_API void goto_parent_namespace();
 
    }
}
#include <cgv/config/lib_end.h>