Method reference operator

Introduce the new operator for method reference, `.:`.
[Feature #12125] [Feature #13581]
[EXPERIMENTAL]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66667 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 6 insertions, 0 deletions

diff --git a/compile.c b/compile.c
index bece66fe94..233edf21c2 100644
--- a/compile.c
+++ b/compile.c
@@ -4583,9 +4583,11 @@ defined_expr0(rb_iseq_t *iseq, LINK_ANCHOR *const ret,
       case NODE_OPCALL:
       case NODE_VCALL:
       case NODE_FCALL:
+      case NODE_METHREF:
       case NODE_ATTRASGN:{
 	const int explicit_receiver =
 	    (type == NODE_CALL || type == NODE_OPCALL ||
+             type == NODE_METHREF ||
 	     (type == NODE_ATTRASGN && !private_recv_p(node)));
 
 	if (!lfinish[1] && (node->nd_args || explicit_receiver)) {
@@ -7552,6 +7554,10 @@ iseq_compile_each0(rb_iseq_t *iseq, LINK_ANCHOR *const ret, const NODE *node, in
 	}
 	break;
       }
+      case NODE_METHREF:
+        CHECK(COMPILE_(ret, "receiver", node->nd_recv, popped));
+        ADD_ELEM(ret, &new_insn_body(iseq, line, BIN(methodref), 1, ID2SYM(node->nd_mid))->link);
+        break;
       default:
 	UNKNOWN_NODE("iseq_compile_each", node, COMPILE_NG);
       ng: