55 lines
2.2 KiB
C++
55 lines
2.2 KiB
C++
/*
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* Copyright © 2019-2021 Dynare Team
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*
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* This file is part of Dynare.
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*
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* Dynare is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Dynare is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Dynare. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef _ENVIRONMENT_HH
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#define _ENVIRONMENT_HH
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#include "ForwardDeclarationsAndEnums.hh"
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#include <map>
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#include <vector>
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namespace macro
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{
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class Environment
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{
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private:
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const Environment *parent{nullptr};
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map<string, ExpressionPtr> variables;
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map<string, tuple<FunctionPtr, ExpressionPtr>> functions;
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public:
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Environment() = default;
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Environment(const Environment *parent_arg) : parent{parent_arg} { }
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void define(VariablePtr var, ExpressionPtr value);
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void define(FunctionPtr func, ExpressionPtr value);
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ExpressionPtr getVariable(const string &name) const;
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tuple<FunctionPtr, ExpressionPtr> getFunction(const string &name) const;
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codes::BaseType getType(const string &name) const;
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bool isVariableDefined(const string &name) const noexcept;
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bool isFunctionDefined(const string &name) const noexcept;
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inline bool isSymbolDefined(const string &name) const noexcept { return isVariableDefined(name) || isFunctionDefined(name); }
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void print(ostream &output, const vector<string> &vars, int line = -1, bool save = false) const;
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void printVariable(ostream &output, const string &name, int line, bool save) const;
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void printFunction(ostream &output, const tuple<FunctionPtr, ExpressionPtr> &function, int line, bool save) const;
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inline size_t size() const noexcept { return variables.size() + functions.size(); }
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inline const Environment *getGlobalEnv() const noexcept { return parent == nullptr ? this : parent->getGlobalEnv(); }
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};
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}
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#endif
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