Add functions needed by constructor.

1 files changed, 53 insertions, 0 deletions

diff --git a/CallGraph.h b/CallGraph.h
new file mode 100644
index 00000000..986e4dc4
--- /dev/null
+++ b/CallGraph.h
@@ -0,0 +1,53 @@
+/*
+	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 2014
+ * Callgraph of functions inside a contract.
+ */
+
+#include <set>
+#include <queue>
+#include <boost/range/iterator_range.hpp>
+#include <libsolidity/ASTVisitor.h>
+
+namespace dev {
+namespace solidity {
+
+/**
+ * Can be used to compute the graph of calls (or rather references) between functions of the same
+ * contract. Current functionality is limited to computing all functions that are directly
+ * or indirectly called by some functions.
+ */
+class CallGraph: private ASTConstVisitor
+{
+public:
+	void addFunction(FunctionDefinition const& _function);
+	void computeCallGraph();
+
+	std::set<FunctionDefinition const*> const& getCalls();
+
+private:
+	void addFunctionToQueue(FunctionDefinition const& _function);
+	virtual bool visit(Identifier const& _identifier) override;
+
+	std::set<FunctionDefinition const*> m_functionsSeen;
+	std::queue<FunctionDefinition const*> m_workQueue;
+};
+
+}
+}