No segfaulty

analyzer/enum-section.go

@@ -35,7 +35,9 @@ func (section EnumSection) ToString (indent int) (output string) {
 	output += section.permission.ToString() + " "
 	output += section.where.ToString()
 	output += "\n"
-	output += section.argument.ToString(indent + 1)
+	if section.argument != nil {
+		output += section.argument.ToString(indent + 1)
+	}
 	output += section.what.ToString(indent + 1)
 	for _, member := range section.members {
 		output += member.ToString(indent + 1)

tests/analyzer/enumSection/main.arf

@@ -21,3 +21,4 @@ enum ro cNamedColor:bColor
 enum ro dFromFarAway:typeSection.dInheritFromOther
 	- bird
 	- bread 4
+