From c1f9b6b5159d4c40031ed7d6d3dea4dc6deef5a5 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 30 Oct 2003 04:37:50 +0000
Subject: * parse.y (logop): left may be NULL. [ruby-talk:84539]

* eval.c (rb_eval): NODE_CASE nd_head may be NULL.

* eval.c (rb_eval): remove never occurred NODE_WHEN branch.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@4864 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 parse.y | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'parse.y')

diff --git a/parse.y b/parse.y
index 5c43cd81d..6098e96ca 100644
--- a/parse.y
+++ b/parse.y
@@ -1821,7 +1821,6 @@ case_body	: kWHEN when_args then
 			$$ = NEW_WHEN($2, $4, $5);
 		    }
 		;
-
 when_args	: args
 		| args ',' tSTAR arg_value
 		    {
@@ -5317,7 +5316,7 @@ logop(type, left, right)
     NODE *left, *right;
 {
     value_expr(left);
-    if (nd_type(left) == type) {
+    if (left && nd_type(left) == type) {
 	NODE *node = left, *second;
 	while ((second = node->nd_2nd) != 0 && nd_type(second) == type) {
 	    node = second;
-- 
cgit