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54 lines
1.4 KiB
54 lines
1.4 KiB
/*
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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 2015
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* Utilities to work with the AST.
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*/
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#pragma once
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#include <libevmasm/SourceLocation.h>
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#include <libsolidity/ASTVisitor.h>
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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 LocationFinder: private ASTConstVisitor
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{
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public:
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LocationFinder(SourceLocation const& _location, std::vector<ASTNode const*> _rootNodes):
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m_rootNodes(_rootNodes), m_location(_location)
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{
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}
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/// @returns the "closest" (in the sense of most-leafward) AST node which is a descendant of
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/// _node and whose source location contains _location.
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ASTNode const* leastUpperBound();
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private:
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bool visitNode(ASTNode const& _node);
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std::vector<ASTNode const*> m_rootNodes;
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SourceLocation m_location;
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ASTNode const* m_bestMatch = nullptr;
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};
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}
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}
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