From 449e81e7e61df05d932ef46d612e962a475980f6 Mon Sep 17 00:00:00 2001
From: Sebastien Binet <binet@cern.ch>
Date: Tue, 1 Feb 2022 17:12:00 +0100
Subject: [PATCH] groot/rdict: add initial support for enums in genGoType

---
 groot/rdict/gen_type.go | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/groot/rdict/gen_type.go b/groot/rdict/gen_type.go
index 16bca151c..b9aa38770 100644
--- a/groot/rdict/gen_type.go
+++ b/groot/rdict/gen_type.go
@@ -266,6 +266,28 @@ func (g *genGoType) typename(se rbytes.StreamerElement) string {
 			return "root.Double32"
 		}
 		t, ok := rmeta.CxxBuiltins[tname]
+		if !ok {
+			enum := se.Type().String()
+			switch se.Type() {
+			case rmeta.Uint8:
+				enum = "uint8_t"
+			case rmeta.Uint16:
+				enum = "uint16_t"
+			case rmeta.Uint32:
+				enum = "uint32_t"
+			case rmeta.Uint64:
+				enum = "uint64_t"
+			case rmeta.Int8:
+				enum = "int8_t"
+			case rmeta.Int16:
+				enum = "int16_t"
+			case rmeta.Int32:
+				enum = "int32_t"
+			case rmeta.Int64:
+				enum = "int64_t"
+			}
+			t, ok = rmeta.CxxBuiltins[enum]
+		}
 		if !ok {
 			panic(fmt.Errorf("gen-type: unknown C++ builtin %q", tname))
 		}