mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
66 lines
2.5 KiB
C++
66 lines
2.5 KiB
C++
/*
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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
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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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cpp-ethereum 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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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2014
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* Scope - object that holds declaration of names.
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*/
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#pragma once
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#include <map>
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#include <set>
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#include <boost/noncopyable.hpp>
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#include <libsolidity/ASTForward.h>
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namespace dev
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{
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namespace solidity
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{
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/**
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* Container that stores mappings between names and declarations. It also contains a link to the
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* enclosing scope.
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*/
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class DeclarationContainer
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{
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public:
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explicit DeclarationContainer(Declaration const* _enclosingDeclaration = nullptr,
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DeclarationContainer const* _enclosingContainer = nullptr):
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m_enclosingDeclaration(_enclosingDeclaration), m_enclosingContainer(_enclosingContainer) {}
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/// Registers the declaration in the scope unless its name is already declared or the name is empty.
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/// @param _invisible if true, registers the declaration, reports name clashes but does not return it in @a resolveName
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/// @param _update if true, replaces a potential declaration that is already present
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/// @returns false if the name was already declared.
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bool registerDeclaration(Declaration const& _declaration, bool _invisible = false, bool _update = false);
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std::vector<Declaration const*> resolveName(ASTString const& _name, bool _recursive = false) const;
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Declaration const* enclosingDeclaration() const { return m_enclosingDeclaration; }
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std::map<ASTString, std::vector<Declaration const*>> const& declarations() const { return m_declarations; }
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/// @returns whether declaration is valid, and if not also returns previous declaration.
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Declaration const* conflictingDeclaration(Declaration const& _declaration) const;
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private:
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Declaration const* m_enclosingDeclaration;
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DeclarationContainer const* m_enclosingContainer;
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std::map<ASTString, std::vector<Declaration const*>> m_declarations;
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std::map<ASTString, std::vector<Declaration const*>> m_invisibleDeclarations;
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};
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}
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}
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