nobu	2016-10-15 18:05:58 +0900 (Sat, 15 Oct 2016)

  New Revision: 56427

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=56427

  Log:
    vm_args.c: cache procs
    
    * vm_args.c (vm_caller_setup_arg_block): cache proc with
      refinements.  [Feature #9451]

  Modified files:
    trunk/vm_args.c
Index: vm_args.c
===================================================================
--- vm_args.c	(revision 56426)
+++ vm_args.c	(revision 56427)
@@ -828,7 +828,14 @@ vm_caller_setup_arg_block(const rb_threa https://github.com/ruby/ruby/blob/trunk/vm_args.c#L828
 	    if (SYMBOL_P(block_code) && rb_method_basic_definition_p(rb_cSymbol, idTo_proc)) {
 		const rb_cref_t *cref = vm_env_cref(reg_cfp->ep);
 		if (cref && !NIL_P(cref->refinements)) {
-		    block_code = rb_func_proc_new(refine_sym_proc_call, block_code);
+		    VALUE ref = cref->refinements;
+		    VALUE func = rb_hash_lookup(ref, block_code);
+		    if (NIL_P(func)) {
+			/* TODO: limit cached funcs */
+			func = rb_func_proc_new(refine_sym_proc_call, block_code);
+			rb_hash_aset(ref, block_code, func);
+		    }
+		    block_code = func;
 		}
 		calling->block_handler = block_code;
 	    }

--
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