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ruby-changes:24330

From: nobu <ko1@a...>
Date: Sat, 14 Jul 2012 16:05:34 +0900 (JST)
Subject: [ruby-changes:24330] nobu:r36381 (trunk): array.c: no infection by unused separator

nobu	2012-07-14 16:04:28 +0900 (Sat, 14 Jul 2012)

  New Revision: 36381

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=rev&revision=36381

  Log:
    array.c: no infection by unused separator
    
    * array.c (rb_ary_join): should not infected by separator if it is not
      used.  [ruby-core:42161][Bug #5902]

  Modified files:
    trunk/ChangeLog
    trunk/array.c
    trunk/test/ruby/test_array.rb

Index: array.c
===================================================================
--- array.c	(revision 36380)
+++ array.c	(revision 36381)
@@ -1768,8 +1768,8 @@
     VALUE val, tmp, result;
 
     if (RARRAY_LEN(ary) == 0) return rb_usascii_str_new(0, 0);
-    if (OBJ_TAINTED(ary) || OBJ_TAINTED(sep)) taint = TRUE;
-    if (OBJ_UNTRUSTED(ary) || OBJ_UNTRUSTED(sep)) untrust = TRUE;
+    if (OBJ_TAINTED(ary)) taint = TRUE;
+    if (OBJ_UNTRUSTED(ary)) untrust = TRUE;
 
     if (!NIL_P(sep)) {
 	StringValue(sep);
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 36380)
+++ ChangeLog	(revision 36381)
@@ -1,3 +1,8 @@
+Sat Jul 14 16:04:24 2012  Nobuyoshi Nakada  <nobu@r...>
+
+	* array.c (rb_ary_join): should not infected by separator if it is not
+	  used.  [ruby-core:42161][Bug #5902]
+
 Sat Jul 14 02:31:55 2012  Nobuyoshi Nakada  <nobu@r...>
 
 	* include/ruby/intern.h (rb_thread_blocking_region): fix declarations
Index: test/ruby/test_array.rb
===================================================================
--- test/ruby/test_array.rb	(revision 36380)
+++ test/ruby/test_array.rb	(revision 36381)
@@ -920,6 +920,19 @@
     assert_equal(true, s.tainted?)
     assert_equal(true, s.untrusted?)
 
+    bug5902 = '[ruby-core:42161]'
+    sep = ":".taint.untrust
+
+    s = @cls[].join(sep)
+    assert_equal(false, s.tainted?, bug5902)
+    assert_equal(false, s.untrusted?, bug5902)
+    s = @cls[1].join(sep)
+    assert_equal(false, s.tainted?, bug5902)
+    assert_equal(false, s.untrusted?, bug5902)
+    s = @cls[1, 2].join(sep)
+    assert_equal(true, s.tainted?, bug5902)
+    assert_equal(true, s.untrusted?, bug5902)
+
     e = ''.force_encoding('EUC-JP')
     u = ''.force_encoding('UTF-8')
     assert_equal(Encoding::US_ASCII, [[]].join.encoding)

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