shyouhei	2008-06-09 18:11:31 +0900 (Mon, 09 Jun 2008)

  New Revision: 17049

  Modified files:
    branches/ruby_1_8_6/ChangeLog
    branches/ruby_1_8_6/eval.c
    branches/ruby_1_8_6/version.h

  Log:
    merge revision(s) 15054:
    * eval.c (eval): check if backtrace is empty.  [ruby-core:15040]


  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8_6/ChangeLog?r1=17049&r2=17048&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8_6/version.h?r1=17049&r2=17048&diff_format=u
  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi/branches/ruby_1_8_6/eval.c?r1=17049&r2=17048&diff_format=u

Index: ruby_1_8_6/ChangeLog
===================================================================
--- ruby_1_8_6/ChangeLog	(revision 17048)
+++ ruby_1_8_6/ChangeLog	(revision 17049)
@@ -1,3 +1,7 @@
+Mon Jun  9 18:09:20 2008  Nobuyoshi Nakada  <nobu@r...>
+
+	* eval.c (eval): check if backtrace is empty.  [ruby-core:15040]
+
 Sun Jun  8 06:08:26 2008  Nobuyoshi Nakada  <nobu@r...>
 
 	* eval.c (rb_define_alloc_func, rb_undef_alloc_func): should
Index: ruby_1_8_6/version.h
===================================================================
--- ruby_1_8_6/version.h	(revision 17048)
+++ ruby_1_8_6/version.h	(revision 17049)
@@ -1,15 +1,15 @@
 #define RUBY_VERSION "1.8.6"
-#define RUBY_RELEASE_DATE "2008-06-08"
+#define RUBY_RELEASE_DATE "2008-06-09"
 #define RUBY_VERSION_CODE 186
-#define RUBY_RELEASE_CODE 20080608
-#define RUBY_PATCHLEVEL 166
+#define RUBY_RELEASE_CODE 20080609
+#define RUBY_PATCHLEVEL 167
 
 #define RUBY_VERSION_MAJOR 1
 #define RUBY_VERSION_MINOR 8
 #define RUBY_VERSION_TEENY 6
 #define RUBY_RELEASE_YEAR 2008
 #define RUBY_RELEASE_MONTH 6
-#define RUBY_RELEASE_DAY 8
+#define RUBY_RELEASE_DAY 9
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];
Index: ruby_1_8_6/eval.c
===================================================================
--- ruby_1_8_6/eval.c	(revision 17048)
+++ ruby_1_8_6/eval.c	(revision 17049)
@@ -6534,16 +6534,17 @@
     if (state) {
 	if (state == TAG_RAISE) {
 	    if (strcmp(file, "(eval)") == 0) {
-		VALUE mesg, errat;
+		VALUE mesg, errat, bt2;
 
 		errat = get_backtrace(ruby_errinfo);
-		mesg  = rb_attr_get(ruby_errinfo, rb_intern("mesg"));
-		if (!NIL_P(errat) && TYPE(errat) == T_ARRAY) {
+		mesg = rb_attr_get(ruby_errinfo, rb_intern("mesg"));
+		if (!NIL_P(errat) && TYPE(errat) == T_ARRAY &&
+		    (bt2 = backtrace(-2), RARRAY(bt2)->len > 0)) {
 		    if (!NIL_P(mesg) && TYPE(mesg) == T_STRING) {
 			rb_str_update(mesg, 0, 0, rb_str_new2(": "));
 			rb_str_update(mesg, 0, 0, RARRAY(errat)->ptr[0]);
 		    }
-		    RARRAY(errat)->ptr[0] = RARRAY(backtrace(-2))->ptr[0];
+		    RARRAY(errat)->ptr[0] = RARRAY(bt2)->ptr[0];
 		}
 	    }
 	    rb_exc_raise(ruby_errinfo);

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