builtin rotate: fix no arguments other then shift (#39)

2023-01-09 10:05:15 +01:00 · 2023-01-09 10:05:15 +01:00 · ef80bd0c5f
commit ef80bd0c5f
parent aec2f3f496
1 changed files with 5 additions and 0 deletions
--- a/musique/interpreter/builtin_functions.cc
+++ b/musique/interpreter/builtin_functions.cc
@ -1255,6 +1255,11 @@ static Result<Value> builtin_rotate(Interpreter &i, std::vector<Value> args)

 	if (args.size()) {
 		if (auto const offset_source = get_if<Number>(args.front())) {
+
+			if (args.size() == 1) {
+				return Array{};
+			}
+
 			auto offset = offset_source->as_int();
 			auto array = Try(flatten(i, std::span(args).subspan(1)));
 			if (offset > 0) {