Set calling->kw_splat = 1 in vm_caller_setup_arg_kw

There are two styles that argv contains keyword arguments: one is
VM_CALL_KWARG which contains value elements in argv (to avoid a hash
object creation if possible), and the other is VM_CALL_KW_SPLAT which
contains one last hash in argv.

vm_caller_setup_arg_kw translates argv from the VM_CALL_KWARG style to
the VM_CALL_KW_SPLAT style.
`calling->kw_splat` means that argv is the VM_CALL_KW_SPLAT style.

So, instead of setting `calling->kw_splat` at many places, it would be
better to do so when vm_caller_setup_arg_kw is called.

1 files changed, 1 insertions, 0 deletions

diff --git a/vm_args.c b/vm_args.c
index a80100ea3c..add5dd5c6f 100644
--- a/vm_args.c
+++ b/vm_args.c
@@ -985,6 +985,7 @@ vm_caller_setup_arg_kw(rb_control_frame_t *cfp, struct rb_calling_info *calling,
 
     cfp->sp -= kw_len - 1;
     calling->argc -= kw_len - 1;
+    calling->kw_splat = 1;
 }
 
 static VALUE