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/*
This file is part of cpp-ethereum.
cpp-ethereum 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.
cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @author Christian <c@ethdev.com>
* @date 2015
* Utilities to work with the AST.
*/
#pragma once
#include <libevmasm/SourceLocation.h>
#include <libsolidity/ASTVisitor.h>
namespace dev
{
namespace solidity
{
class LocationFinder: private ASTConstVisitor
{
public:
LocationFinder(SourceLocation const& _location, std::vector<ASTNode const*> _rootNodes):
m_rootNodes(_rootNodes), m_location(_location)
{
}
/// @returns the "closest" (in the sense of most-leafward) AST node which is a descendant of
/// _node and whose source location contains _location.
ASTNode const* leastUpperBound();
private:
bool visitNode(ASTNode const& _node);
std::vector<ASTNode const*> m_rootNodes;
SourceLocation m_location;
ASTNode const* m_bestMatch = nullptr;
};
}
}
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