From 7e8fb15457f08faf0fd6b7e1d0823140ecee2a60 Mon Sep 17 00:00:00 2001
From: cremno <cremno@mail.ru>
Date: Mon, 1 Jun 2015 13:54:20 +0200
Subject: only generate gets of non-local vars in VAL mode

This fixes a crash for code like "#{@a;1}".

Unlike CRuby globals are excluded too since mruby doesn't implement
hooking.
---
 src/codegen.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/codegen.c b/src/codegen.c
index be630b9a8..16233347c 100644
--- a/src/codegen.c
+++ b/src/codegen.c
@@ -1911,7 +1911,7 @@ codegen(codegen_scope *s, node *tree, int val)
     break;
 
   case NODE_GVAR:
-    {
+    if (val) {
       int sym = new_sym(s, sym(tree));
 
       genop(s, MKOP_ABx(OP_GETGLOBAL, cursp(), sym));
@@ -1920,7 +1920,7 @@ codegen(codegen_scope *s, node *tree, int val)
     break;
 
   case NODE_IVAR:
-    {
+    if (val) {
       int sym = new_sym(s, sym(tree));
 
       genop(s, MKOP_ABx(OP_GETIV, cursp(), sym));
@@ -1929,7 +1929,7 @@ codegen(codegen_scope *s, node *tree, int val)
     break;
 
   case NODE_CVAR:
-    {
+    if (val) {
       int sym = new_sym(s, sym(tree));
 
       genop(s, MKOP_ABx(OP_GETCV, cursp(), sym));
@@ -1951,7 +1951,7 @@ codegen(codegen_scope *s, node *tree, int val)
     break;
 
   case NODE_BACK_REF:
-    {
+    if (val) {
       char buf[2] = { '$' };
       mrb_value str;
       int sym;
@@ -1965,7 +1965,7 @@ codegen(codegen_scope *s, node *tree, int val)
     break;
 
   case NODE_NTH_REF:
-    {
+    if (val) {
       int sym;
       mrb_state *mrb = s->mrb;
       mrb_value fix = mrb_fixnum_value((intptr_t)tree);
-- 
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