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85 lines
2.7 KiB
85 lines
2.7 KiB
/*
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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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#include <libsolidity/DeclarationContainer.h>
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#include <libsolidity/AST.h>
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#include <libsolidity/Types.h>
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using namespace std;
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using namespace dev;
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using namespace dev::solidity;
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Declaration const* DeclarationContainer::conflictingDeclaration(Declaration const& _declaration) const
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{
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ASTString const& name(_declaration.getName());
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solAssert(!name.empty(), "");
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vector<Declaration const*> declarations;
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if (m_declarations.count(name))
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declarations += m_declarations.at(name);
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if (m_invisibleDeclarations.count(name))
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declarations += m_invisibleDeclarations.at(name);
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if (dynamic_cast<FunctionDefinition const*>(&_declaration))
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{
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// check that all other declarations with the same name are functions
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for (Declaration const* declaration: declarations)
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if (!dynamic_cast<FunctionDefinition const*>(declaration))
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return declaration;
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}
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else if (!declarations.empty())
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return declarations.front();
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return nullptr;
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}
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bool DeclarationContainer::registerDeclaration(Declaration const& _declaration, bool _invisible, bool _update)
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{
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ASTString const& name(_declaration.getName());
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if (name.empty())
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return true;
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if (_update)
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{
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solAssert(!dynamic_cast<FunctionDefinition const*>(&_declaration), "Attempt to update function definition.");
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m_declarations.erase(name);
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m_invisibleDeclarations.erase(name);
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}
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else if (conflictingDeclaration(_declaration))
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return false;
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if (_invisible)
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m_invisibleDeclarations[name].insert(&_declaration);
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else
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m_declarations[name].insert(&_declaration);
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return true;
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}
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set<Declaration const*> DeclarationContainer::resolveName(ASTString const& _name, bool _recursive) const
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{
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solAssert(!_name.empty(), "Attempt to resolve empty name.");
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auto result = m_declarations.find(_name);
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if (result != m_declarations.end())
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return result->second;
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if (_recursive && m_enclosingContainer)
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return m_enclosingContainer->resolveName(_name, true);
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return set<Declaration const*>({});
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}
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