CALLER_SETUP_ARG removes an empty keyword hash from argv
...only when a "remove_empty_keyword_hash" flag is specified.
After CALLER_SETUP_ARG is called, ci->flag & VM_CALL_KW_SPLAT must not be used. Instead. use calling->kw_splat. This is because CALLER_SETUP_ARG may modify argv and update calling->kw_splat, and ci->flag & VM_CALL_KW_SPLAT may be inconsistent with the result.
Added by mame (Yusuke Endoh) about 6 years ago
CALLER_SETUP_ARG removes an empty keyword hash from argv
...only when a "remove_empty_keyword_hash" flag is specified.
After CALLER_SETUP_ARG is called,
ci->flag & VM_CALL_KW_SPLATmust notbe used. Instead. use
calling->kw_splat. This is becauseCALLER_SETUP_ARG may modify argv and update
calling->kw_splat, andci->flag & VM_CALL_KW_SPLATmay be inconsistent with the result.