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/*
This file is part of cpp-ethereum.
cpp-ethereum is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
cpp-ethereum is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Christian <c@ethdev.com>
* @date 2014
* Scope - object that holds declaration of names.
*/
#pragma once
#include <map>
#include <boost/noncopyable.hpp>
#include <libsolidity/ASTForward.h>
namespace dev
{
namespace solidity
{
/**
* Container that stores mappings betwee names and declarations. It also contains a link to the
* enclosing scope.
*/
class Scope
{
public:
explicit Scope(Scope* _enclosingScope = nullptr): m_enclosingScope(_enclosingScope) {}
/// Registers the declaration in the scope unless its name is already declared. Returns true iff
/// it was not yet declared.
bool registerDeclaration(Declaration& _declaration);
Declaration* resolveName(ASTString const& _name, bool _recursive = false) const;
Scope* getEnclosingScope() const { return m_enclosingScope; }
private:
Scope* m_enclosingScope;
std::map<ASTString, Declaration*> m_declarations;
};
}
}
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