* parse.y (rb_compose_ivar2): function to create a new ivar2

  symbol from a symbol and a class.  back-ported from matzruby.

* parse.y (rb_decompose_ivar2): reverse function of
  rb_compose_ivar2(). 

* marshal.c (w_symbol): support class local instance variables.

* marshal.c (r_object0): ditto.

* compile.c (defined_expr): ditto.

* compile.c (iseq_compile_each): ditto.

* insns.def: add two new instructions: getinstancevariable2 and
  setinstancevariable2.

git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@11630 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 22 insertions, 0 deletions

diff --git a/compile.c b/compile.c
index 5455bd703..54a806ed9 100644
--- a/compile.c
+++ b/compile.c
@@ -2345,6 +2345,11 @@ defined_expr(yarv_iseq_t *iseq, LINK_ANCHOR *ret,
 	ADD_INSN3(ret, nd_line(node), defined, INT2FIX(DEFINED_IVAR),
 		  ID2SYM(node->nd_vid), needstr);
 	return 1;
+      case NODE_IVAR2:
+	ADD_INSN(ret, nd_line(node), putnil);
+	ADD_INSN3(ret, nd_line(node), defined, INT2FIX(DEFINED_IVAR2),
+		  ID2SYM(node->nd_vid), needstr);
+	return 1;
 
       case NODE_GVAR:
 	ADD_INSN(ret, nd_line(node), putnil);
@@ -3327,6 +3332,15 @@ iseq_compile_each(yarv_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 		    ID2SYM(node->nd_vid));
 	  break;
       }
+      case NODE_IASGN2:{
+	  COMPILE(ret, "lvalue", node->nd_value);
+	  if (!poped) {
+	      ADD_INSN(ret, nd_line(node), dup);
+	  }
+	  ADD_INSN1(ret, nd_line(node), setinstancevariable2,
+		    ID2SYM(node->nd_vid));
+	  break;
+      }
       case NODE_CDECL:{
 	  COMPILE(ret, "lvalue", node->nd_value);
 
@@ -3903,6 +3917,14 @@ iseq_compile_each(yarv_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	  }
 	  break;
       }
+      case NODE_IVAR2:{
+	  debugi("nd_vid", node->nd_vid);
+	  if (!poped) {
+	      ADD_INSN1(ret, nd_line(node), getinstancevariable2,
+			ID2SYM(node->nd_vid));
+	  }
+	  break;
+      }
       case NODE_CONST:{
 	  debugi("nd_vid", node->nd_vid);