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ControlFlowGraph.cpp
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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/>.
*/
// SPDX-License-Identifier: GPL-3.0
#include <libsolidity/analysis/ControlFlowGraph.h>
#include <libsolidity/analysis/ControlFlowBuilder.h>
using namespace solidity::langutil;
using namespace solidity::frontend;
bool CFG::constructFlow(ASTNode const& _astRoot)
{
_astRoot.accept(*this);
return !Error::containsErrors(m_errorReporter.errors());
}
bool CFG::visit(FunctionDefinition const& _function)
{
if (_function.isImplemented() && _function.isFree())
m_functionControlFlow[{nullptr, &_function}] = ControlFlowBuilder::createFunctionFlow(
m_nodeContainer,
_function,
nullptr /* _contract */
);
return false;
}
bool CFG::visit(ContractDefinition const& _contract)
{
for (ContractDefinition const* contract: _contract.annotation().linearizedBaseContracts)
for (FunctionDefinition const* function: contract->definedFunctions())
if (function->isImplemented())
m_functionControlFlow[{&_contract, function}] =
ControlFlowBuilder::createFunctionFlow(m_nodeContainer, *function, &_contract);
return true;
}
FunctionFlow const& CFG::functionFlow(FunctionDefinition const& _function, ContractDefinition const* _contract) const
{
return *m_functionControlFlow.at({_contract, &_function});
}
CFGNode* CFG::NodeContainer::newNode()
{
m_nodes.emplace_back(std::make_unique<CFGNode>());
return m_nodes.back().get();
}