solidity/DeclarationContainer.cpp

79 lines
2.3 KiB
C++

/*
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.
*/
#include <libsolidity/DeclarationContainer.h>
#include <libsolidity/AST.h>
#include <libsolidity/Types.h>
namespace dev
{
namespace solidity
{
bool DeclarationContainer::registerDeclaration(Declaration const& _declaration, bool _invisible, bool _update)
{
ASTString const& name(_declaration.getName());
if (name.empty())
return true;
if (!_update)
{
if (dynamic_cast<FunctionDefinition const*>(&_declaration))
{
// other declarations must be FunctionDefinition, otherwise clash with other declarations.
for (auto&& declaration: m_declarations[_declaration.getName()])
if (dynamic_cast<FunctionDefinition const*>(declaration) == nullptr)
return false;
}
else if (m_declarations.count(_declaration.getName()) != 0)
return false;
}
else
{
// update declaration
solAssert(dynamic_cast<FunctionDefinition const*>(&_declaration) == nullptr, "cannot be FunctionDefinition");
m_declarations[_declaration.getName()].clear();
}
if (_invisible)
m_invisibleDeclarations.insert(name);
else
m_declarations[_declaration.getName()].insert(&_declaration);
return true;
}
std::set<Declaration const*> DeclarationContainer::resolveName(ASTString const& _name, bool _recursive) const
{
solAssert(!_name.empty(), "Attempt to resolve empty name.");
auto result = m_declarations.find(_name);
if (result != m_declarations.end())
return result->second;
if (_recursive && m_enclosingContainer)
return m_enclosingContainer->resolveName(_name, true);
return std::set<Declaration const*>({});
}
}
}