simplify RestParameterInit

boa_engine/src/vm/opcode/rest_parameter/mod.rs

@@ -18,21 +18,16 @@ impl Operation for RestParameterInit {
     fn execute(context: &mut Context<'_>) -> JsResult<CompletionType> {
         let arg_count = context.vm.frame().argument_count as usize;
         let param_count = context.vm.frame().code_block().params.as_ref().len();
-        if arg_count >= param_count {
-            let rest_count = arg_count - param_count + 1;
-            let mut args = Vec::with_capacity(rest_count);
-            for _ in 0..rest_count {
-                args.push(context.vm.pop());
-            }
-            args.reverse();
-            let array = Array::create_array_from_list(args, context);
 
-            context.vm.push(array);
+        let array = if arg_count >= param_count {
+            let rest_count = arg_count - param_count + 1;
+            let args = context.pop_n_arguments(rest_count);
+            Array::create_array_from_list(args, context)
         } else {
-            let array =
-                Array::array_create(0, None, context).expect("could not create an empty array");
-            context.vm.push(array);
-        }
+            Array::array_create(0, None, context).expect("could not create an empty array")
+        };
+
+        context.vm.push(array);
         Ok(CompletionType::Normal)
     }
 }