required keyword arguments

* compile.c (iseq_set_arguments, iseq_compile_each): support required
  keyword arguments.   [ruby-core:51454] [Feature #7701]
* iseq.c (rb_iseq_parameters): ditto.
* parse.y (f_kw, f_block_kw): ditto.  this syntax is still
  experimental, the notation may change.
* vm_core.h (rb_iseq_struct): ditto.
* vm_insnhelper.c (vm_callee_setup_keyword_arg): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@39735 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 13 insertions, 1 deletions

diff --git a/iseq.c b/iseq.c
index 5ef737e193..288d3bfb05 100644
--- a/iseq.c
+++ b/iseq.c
@@ -1965,8 +1965,20 @@ rb_iseq_parameters(const rb_iseq_t *iseq, int is_proc)
 	}
     }
     if (iseq->arg_keyword != -1) {
+	i = 0;
+	if (iseq->arg_keyword_required) {
+	    ID keyreq;
+	    CONST_ID(keyreq, "keyreq");
+	    for (; i < iseq->arg_keyword_required; i++) {
+		PARAM_TYPE(keyreq);
+		if (rb_id2str(iseq->arg_keyword_table[i])) {
+		    rb_ary_push(a, ID2SYM(iseq->arg_keyword_table[i]));
+		}
+		rb_ary_push(args, a);
+	    }
+	}
 	CONST_ID(key, "key");
-	for (i = 0; i < iseq->arg_keywords; i++) {
+	for (; i < iseq->arg_keywords; i++) {
 	    PARAM_TYPE(key);
 	    if (rb_id2str(iseq->arg_keyword_table[i])) {
 		rb_ary_push(a, ID2SYM(iseq->arg_keyword_table[i]));