Utility class to find a suitable AST node for a given location.

1 files changed, 48 insertions, 0 deletions

diff --git a/ASTUtils.cpp b/ASTUtils.cpp
new file mode 100644
index 00000000..081d6b31
--- /dev/null
+++ b/ASTUtils.cpp
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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.
+ */
+
+#include <libsolidity/ASTUtils.h>
+
+using namespace std;
+using namespace dev;
+using namespace dev::solidity;
+
+
+
+ASTNode const* LocationFinder::leastUpperBound()
+{
+	m_bestMatch = nullptr;
+	for (ASTNode const* rootNode: m_rootNodes)
+		rootNode->accept(*this);
+
+	return m_bestMatch;
+}
+
+bool LocationFinder::visitNode(const ASTNode& _node)
+{
+	if (_node.getLocation().contains(m_location))
+	{
+		m_bestMatch = &_node;
+		return true;
+	}
+	return false;
+}