libsolidity/analysis/ControlFlowGraph.cpp


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53

/*
    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/>.
*/

#include <libsolidity/analysis/ControlFlowGraph.h>
#include <libsolidity/analysis/ControlFlowBuilder.h>

#include <boost/range/adaptor/reversed.hpp>

#include <algorithm>

using namespace std;
using namespace langutil;
using namespace dev::solidity;

bool CFG::constructFlow(ASTNode const& _astRoot)
{
    _astRoot.accept(*this);
    return Error::containsOnlyWarnings(m_errorReporter.errors());
}


bool CFG::visit(FunctionDefinition const& _function)
{
    if (_function.isImplemented())
        m_functionControlFlow[&_function] = ControlFlowBuilder::createFunctionFlow(m_nodeContainer, _function);
    return false;
}

FunctionFlow const& CFG::functionFlow(FunctionDefinition const& _function) const
{
    solAssert(m_functionControlFlow.count(&_function), "");
    return *m_functionControlFlow.find(&_function)->second;
}

CFGNode* CFG::NodeContainer::newNode()
{
    m_nodes.emplace_back(new CFGNode());
    return m_nodes.back().get();
}