From f2a5a111909a6358110fe511cca8c989ea7eece8 Mon Sep 17 00:00:00 2001
From: Stefan Wunsch <stefan.wunsch@cern.ch>
Date: Fri, 7 Dec 2018 10:37:13 +0100
Subject: [PATCH] [RDF] Add AsRNode helper to cast RDF nodes to common type
ROOT::RDF::RNode
---
tree/dataframe/inc/ROOT/RDFHelpers.hxx | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/tree/dataframe/inc/ROOT/RDFHelpers.hxx b/tree/dataframe/inc/ROOT/RDFHelpers.hxx
index 1824c82e5ad..2193e1772ee 100644
--- a/tree/dataframe/inc/ROOT/RDFHelpers.hxx
+++ b/tree/dataframe/inc/ROOT/RDFHelpers.hxx
@@ -136,6 +136,16 @@ void SaveGraph(NodeType node, const std::string &outputFile)
out.close();
}
+// clang-format off
+/// Cast a RDataFrame node to the common type ROOT::RDF::RNode
+/// \param[in] Any node of a RDataFrame graph
+// clang-format on
+template <typename NodeType>
+RNode AsRNode(NodeType node)
+{
+ return node;
+}
+
} // namespace RDF
} // namespace ROOT
#endif
--
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