From 8a1758e60501911b44a0287c4573d4316b684295 Mon Sep 17 00:00:00 2001 From: chriseth Date: Wed, 29 Apr 2015 15:52:56 +0200 Subject: Utility class to find a suitable AST node for a given location. --- ASTUtils.h | 54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 ASTUtils.h (limited to 'ASTUtils.h') diff --git a/ASTUtils.h b/ASTUtils.h new file mode 100644 index 00000000..f2b90ea5 --- /dev/null +++ b/ASTUtils.h @@ -0,0 +1,54 @@ +/* + 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 . +*/ +/** + * @author Christian + * @date 2015 + * Utilities to work with the AST. + */ + +#pragma once + +#include +#include + +namespace dev +{ +namespace solidity +{ + +class LocationFinder: private ASTConstVisitor +{ +public: + LocationFinder(SourceLocation const& _location, std::vector _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 m_rootNodes; + SourceLocation m_location; + ASTNode const* m_bestMatch = nullptr; +}; + +} +} -- cgit v1.2.3