solidity/libsolidity/analysis/DeclarationContainer.cpp

97 lines
2.9 KiB
C++
Raw Normal View History

2014-10-13 16:22:15 +00:00
/*
2014-10-16 12:08:54 +00:00
This file is part of cpp-ethereum.
2014-10-13 16:22:15 +00:00
2014-10-16 12:08:54 +00:00
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.
2014-10-13 16:22:15 +00:00
2014-10-16 12:08:54 +00:00
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.
2014-10-13 16:22:15 +00:00
2014-10-16 12:08:54 +00:00
You should have received a copy of the GNU General Public License
along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
2014-10-13 16:22:15 +00:00
*/
/**
* @author Christian <c@ethdev.com>
* @date 2014
* Scope - object that holds declaration of names.
*/
2015-10-20 22:21:52 +00:00
#include <libsolidity/analysis/DeclarationContainer.h>
#include <libsolidity/ast/AST.h>
#include <libsolidity/ast/Types.h>
2014-10-13 16:22:15 +00:00
2015-04-20 12:57:56 +00:00
using namespace std;
using namespace dev;
using namespace dev::solidity;
2014-10-13 16:22:15 +00:00
2015-12-05 02:09:47 +00:00
Declaration const* DeclarationContainer::conflictingDeclaration(
Declaration const& _declaration,
ASTString const* _name
) const
{
2015-12-05 02:09:47 +00:00
if (!_name)
_name = &_declaration.name();
solAssert(!_name->empty(), "");
vector<Declaration const*> declarations;
2015-12-05 02:09:47 +00:00
if (m_declarations.count(*_name))
declarations += m_declarations.at(*_name);
if (m_invisibleDeclarations.count(*_name))
declarations += m_invisibleDeclarations.at(*_name);
if (dynamic_cast<FunctionDefinition const*>(&_declaration))
{
// check that all other declarations with the same name are functions
for (Declaration const* declaration: declarations)
if (!dynamic_cast<FunctionDefinition const*>(declaration))
return declaration;
}
2016-01-11 12:55:58 +00:00
else if (declarations.size() == 1 && declarations.front() == &_declaration)
return nullptr;
else if (!declarations.empty())
return declarations.front();
return nullptr;
}
2015-12-05 02:09:47 +00:00
bool DeclarationContainer::registerDeclaration(
Declaration const& _declaration,
ASTString const* _name,
bool _invisible,
bool _update
)
2014-10-13 16:22:15 +00:00
{
2015-12-05 02:09:47 +00:00
if (!_name)
_name = &_declaration.name();
if (_name->empty())
return true;
if (_update)
{
solAssert(!dynamic_cast<FunctionDefinition const*>(&_declaration), "Attempt to update function definition.");
2015-12-05 02:09:47 +00:00
m_declarations.erase(*_name);
m_invisibleDeclarations.erase(*_name);
}
2016-01-11 12:55:58 +00:00
else if (conflictingDeclaration(_declaration, _name))
return false;
2015-02-13 23:43:02 +00:00
2016-01-11 12:55:58 +00:00
vector<Declaration const*>& decls = _invisible ? m_invisibleDeclarations[*_name] : m_declarations[*_name];
if (!contains(decls, &_declaration))
decls.push_back(&_declaration);
2014-10-13 16:22:15 +00:00
return true;
}
2015-05-08 14:07:25 +00:00
std::vector<Declaration const*> DeclarationContainer::resolveName(ASTString const& _name, bool _recursive) const
2014-10-13 16:22:15 +00:00
{
solAssert(!_name.empty(), "Attempt to resolve empty name.");
2014-10-13 16:22:15 +00:00
auto result = m_declarations.find(_name);
if (result != m_declarations.end())
return result->second;
2014-12-01 14:22:45 +00:00
if (_recursive && m_enclosingContainer)
return m_enclosingContainer->resolveName(_name, true);
return vector<Declaration const*>({});
2014-10-16 12:08:54 +00:00
}