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/*
This file is part of solidity.
solidity 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.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Christian <c@ethdev.com>
* @author Gav Wood <g@ethdev.com>
* @date 2014
* Container of the (implicit and explicit) global objects.
*/
#include <memory>
#include <libsolidity/analysis/GlobalContext.h>
#include <libsolidity/ast/AST.h>
#include <libsolidity/ast/Types.h>
using namespace std;
namespace dev
{
namespace solidity
{
GlobalContext::GlobalContext():
m_magicVariables(vector<shared_ptr<MagicVariableDeclaration const>>{
make_shared<MagicVariableDeclaration>("addmod", make_shared<FunctionType>(strings{"uint256", "uint256", "uint256"}, strings{"uint256"}, FunctionType::Kind::AddMod, false, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("assert", make_shared<FunctionType>(strings{"bool"}, strings{}, FunctionType::Kind::Assert, false, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("block", make_shared<MagicType>(MagicType::Kind::Block)),
make_shared<MagicVariableDeclaration>("blockhash", make_shared<FunctionType>(strings{"uint256"}, strings{"bytes32"}, FunctionType::Kind::BlockHash, false, StateMutability::View)),
make_shared<MagicVariableDeclaration>("ecrecover", make_shared<FunctionType>(strings{"bytes32", "uint8", "bytes32", "bytes32"}, strings{"address"}, FunctionType::Kind::ECRecover, false, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("gasleft", make_shared<FunctionType>(strings(), strings{"uint256"}, FunctionType::Kind::GasLeft, false, StateMutability::View)),
make_shared<MagicVariableDeclaration>("keccak256", make_shared<FunctionType>(strings(), strings{"bytes32"}, FunctionType::Kind::SHA3, true, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("log0", make_shared<FunctionType>(strings{"bytes32"}, strings{}, FunctionType::Kind::Log0)),
make_shared<MagicVariableDeclaration>("log1", make_shared<FunctionType>(strings{"bytes32", "bytes32"}, strings{}, FunctionType::Kind::Log1)),
make_shared<MagicVariableDeclaration>("log2", make_shared<FunctionType>(strings{"bytes32", "bytes32", "bytes32"}, strings{}, FunctionType::Kind::Log2)),
make_shared<MagicVariableDeclaration>("log3", make_shared<FunctionType>(strings{"bytes32", "bytes32", "bytes32", "bytes32"}, strings{}, FunctionType::Kind::Log3)),
make_shared<MagicVariableDeclaration>("log4", make_shared<FunctionType>(strings{"bytes32", "bytes32", "bytes32", "bytes32", "bytes32"}, strings{}, FunctionType::Kind::Log4)),
make_shared<MagicVariableDeclaration>("msg", make_shared<MagicType>(MagicType::Kind::Message)),
make_shared<MagicVariableDeclaration>("mulmod", make_shared<FunctionType>(strings{"uint256", "uint256", "uint256"}, strings{"uint256"}, FunctionType::Kind::MulMod, false, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("now", make_shared<IntegerType>(256)),
make_shared<MagicVariableDeclaration>("require", make_shared<FunctionType>(strings{"bool"}, strings{}, FunctionType::Kind::Require, false, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("revert", make_shared<FunctionType>(strings(), strings(), FunctionType::Kind::Revert, false, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("revert", make_shared<FunctionType>(strings{"string memory"}, strings(), FunctionType::Kind::Revert, false, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("ripemd160", make_shared<FunctionType>(strings(), strings{"bytes20"}, FunctionType::Kind::RIPEMD160, true, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("selfdestruct", make_shared<FunctionType>(strings{"address"}, strings{}, FunctionType::Kind::Selfdestruct)),
make_shared<MagicVariableDeclaration>("sha256", make_shared<FunctionType>(strings(), strings{"bytes32"}, FunctionType::Kind::SHA256, true, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("sha3", make_shared<FunctionType>(strings(), strings{"bytes32"}, FunctionType::Kind::SHA3, true, StateMutability::Pure)),
make_shared<MagicVariableDeclaration>("suicide", make_shared<FunctionType>(strings{"address"}, strings{}, FunctionType::Kind::Selfdestruct)),
make_shared<MagicVariableDeclaration>("tx", make_shared<MagicType>(MagicType::Kind::Transaction))
})
{
}
void GlobalContext::setCurrentContract(ContractDefinition const& _contract)
{
m_currentContract = &_contract;
}
vector<Declaration const*> GlobalContext::declarations() const
{
vector<Declaration const*> declarations;
declarations.reserve(m_magicVariables.size());
for (ASTPointer<Declaration const> const& variable: m_magicVariables)
declarations.push_back(variable.get());
return declarations;
}
MagicVariableDeclaration const* GlobalContext::currentThis() const
{
if (!m_thisPointer[m_currentContract])
m_thisPointer[m_currentContract] = make_shared<MagicVariableDeclaration>("this", make_shared<ContractType>(*m_currentContract));
return m_thisPointer[m_currentContract].get();
}
MagicVariableDeclaration const* GlobalContext::currentSuper() const
{
if (!m_superPointer[m_currentContract])
m_superPointer[m_currentContract] = make_shared<MagicVariableDeclaration>("super", make_shared<ContractType>(*m_currentContract, true));
return m_superPointer[m_currentContract].get();
}
}
}
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