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105 lines
2.7 KiB
105 lines
2.7 KiB
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/*
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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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* Callgraph of functions inside a contract.
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*/
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#include <libsolidity/AST.h>
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#include <libsolidity/CallGraph.h>
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using namespace std;
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namespace dev
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{
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namespace solidity
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{
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void CallGraph::addNode(ASTNode const& _node)
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{
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if (!m_nodesSeen.count(&_node))
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{
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m_workQueue.push(&_node);
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m_nodesSeen.insert(&_node);
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}
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}
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set<FunctionDefinition const*> const& CallGraph::getCalls()
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{
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computeCallGraph();
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return m_functionsSeen;
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}
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void CallGraph::computeCallGraph()
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{
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while (!m_workQueue.empty())
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{
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m_workQueue.front()->accept(*this);
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m_workQueue.pop();
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}
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}
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bool CallGraph::visit(Identifier const& _identifier)
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{
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if (auto fun = dynamic_cast<FunctionDefinition const*>(_identifier.getReferencedDeclaration()))
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{
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if (m_functionOverrideResolver)
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fun = (*m_functionOverrideResolver)(fun->getName());
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solAssert(fun, "Error finding override for function " + fun->getName());
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addNode(*fun);
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}
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if (auto modifier = dynamic_cast<ModifierDefinition const*>(_identifier.getReferencedDeclaration()))
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{
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if (m_modifierOverrideResolver)
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modifier = (*m_modifierOverrideResolver)(modifier->getName());
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solAssert(modifier, "Error finding override for modifier " + modifier->getName());
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addNode(*modifier);
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}
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return true;
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}
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bool CallGraph::visit(FunctionDefinition const& _function)
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{
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m_functionsSeen.insert(&_function);
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return true;
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}
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bool CallGraph::visit(MemberAccess const& _memberAccess)
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{
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// used for "BaseContract.baseContractFunction"
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if (_memberAccess.getExpression().getType()->getCategory() == Type::Category::TYPE)
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{
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TypeType const& type = dynamic_cast<TypeType const&>(*_memberAccess.getExpression().getType());
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if (type.getMembers().getMemberType(_memberAccess.getMemberName()))
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{
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ContractDefinition const& contract = dynamic_cast<ContractType const&>(*type.getActualType())
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.getContractDefinition();
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for (ASTPointer<FunctionDefinition> const& function: contract.getDefinedFunctions())
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if (function->getName() == _memberAccess.getMemberName())
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{
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addNode(*function);
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return true;
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}
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}
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}
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return true;
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}
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}
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}
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