mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
/*
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This file is part of solidity.
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solidity 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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solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <libsolidity/analysis/ControlFlowGraph.h>
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#include <set>
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namespace dev
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{
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namespace solidity
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{
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class ControlFlowAnalyzer: private ASTConstVisitor
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{
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public:
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explicit ControlFlowAnalyzer(CFG const& _cfg, langutil::ErrorReporter& _errorReporter):
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m_cfg(_cfg), m_errorReporter(_errorReporter) {}
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bool analyze(ASTNode const& _astRoot);
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bool visit(FunctionDefinition const& _function) override;
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private:
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/// Checks for uninitialized variable accesses in the control flow between @param _entry and @param _exit.
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void checkUninitializedAccess(CFGNode const* _entry, CFGNode const* _exit) const;
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/// Checks for unreachable code, i.e. code ending in @param _exit or @param _revert
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/// that can not be reached from @param _entry.
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void checkUnreachable(CFGNode const* _entry, CFGNode const* _exit, CFGNode const* _revert) const;
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CFG const& m_cfg;
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langutil::ErrorReporter& m_errorReporter;
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};
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}
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}
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