solidity/DeclarationContainer.h

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/*
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This file is part of cpp-ethereum.
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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.
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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.
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You should have received a copy of the GNU General Public License
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
/**
* @author Christian <c@ethdev.com>
* @date 2014
* Scope - object that holds declaration of names.
*/
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#pragma once
#include <map>
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#include <boost/noncopyable.hpp>
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#include <libsolidity/ASTForward.h>
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namespace dev
{
namespace solidity
{
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/**
* Container that stores mappings betwee names and declarations. It also contains a link to the
* enclosing scope.
*/
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class DeclarationContainer
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{
public:
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explicit DeclarationContainer(Declaration const* _enclosingDeclaration = nullptr,
DeclarationContainer const* _enclosingContainer = nullptr):
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m_enclosingDeclaration(_enclosingDeclaration), m_enclosingContainer(_enclosingContainer) {}
/// Registers the declaration in the scope unless its name is already declared.
/// @returns true iff it was not yet declared.
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bool registerDeclaration(Declaration const& _declaration, bool _update = false);
Declaration const* resolveName(ASTString const& _name, bool _recursive = false) const;
Declaration const* getEnclosingDeclaration() const { return m_enclosingDeclaration; }
std::map<ASTString, Declaration const*> const& getDeclarations() const { return m_declarations; }
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private:
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Declaration const* m_enclosingDeclaration;
DeclarationContainer const* m_enclosingContainer;
std::map<ASTString, Declaration const*> m_declarations;
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};
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}
}