nagachika	2017-08-05 00:55:45 +0900 (Sat, 05 Aug 2017)

  New Revision: 59506

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=59506

  Log:
    merge revision(s) 59384: [Backport #13759]
    
    strscan.c: fix segfault in aref
    
    * ext/strscan/strscan.c (strscan_aref): fix segfault after
      get_byte or getch which do not apply regexp.
      [ruby-core:82116] [Bug #13759]

  Modified directories:
    branches/ruby_2_4/
  Modified files:
    branches/ruby_2_4/ext/strscan/strscan.c
    branches/ruby_2_4/test/strscan/test_stringscanner.rb
    branches/ruby_2_4/version.h
Index: ruby_2_4/test/strscan/test_stringscanner.rb
===================================================================
--- ruby_2_4/test/strscan/test_stringscanner.rb	(revision 59505)
+++ ruby_2_4/test/strscan/test_stringscanner.rb	(revision 59506)
@@ -718,4 +718,14 @@ class TestStringScanner < Test::Unit::Te https://github.com/ruby/ruby/blob/trunk/ruby_2_4/test/strscan/test_stringscanner.rb#L718
     s.scan(/test strin/)
     assert_equal('#<StringScanner 10/16 "...strin" @ "g tes...">', s.inspect)
   end
+
+  def test_aref_without_regex
+    s = StringScanner.new('abc')
+    s.get_byte
+    assert_nil(s[:c])
+    assert_nil(s["c"])
+    s.getch
+    assert_nil(s[:c])
+    assert_nil(s["c"])
+  end
 end
Index: ruby_2_4/version.h
===================================================================
--- ruby_2_4/version.h	(revision 59505)
+++ ruby_2_4/version.h	(revision 59506)
@@ -1,6 +1,6 @@ https://github.com/ruby/ruby/blob/trunk/ruby_2_4/version.h#L1
 #define RUBY_VERSION "2.4.2"
 #define RUBY_RELEASE_DATE "2017-08-05"
-#define RUBY_PATCHLEVEL 171
+#define RUBY_PATCHLEVEL 172
 
 #define RUBY_RELEASE_YEAR 2017
 #define RUBY_RELEASE_MONTH 8
Index: ruby_2_4/ext/strscan/strscan.c
===================================================================
--- ruby_2_4/ext/strscan/strscan.c	(revision 59505)
+++ ruby_2_4/ext/strscan/strscan.c	(revision 59506)
@@ -1034,6 +1034,7 @@ strscan_aref(VALUE self, VALUE idx) https://github.com/ruby/ruby/blob/trunk/ruby_2_4/ext/strscan/strscan.c#L1034
             idx = rb_sym2str(idx);
             /* fall through */
         case T_STRING:
+            if (!p->regex) return Qnil;
             RSTRING_GETMEM(idx, name, i);
             i = name_to_backref_number(&(p->regs), p->regex, name, name + i, rb_enc_get(idx));
             break;
Index: ruby_2_4
===================================================================
--- ruby_2_4	(revision 59505)
+++ ruby_2_4	(revision 59506)

Property changes on: ruby_2_4
___________________________________________________________________
Modified: svn:mergeinfo
## -0,0 +0,1 ##
   Merged /trunk:r59384

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