merge revision(s) r47973: [Backport ruby#10392]

	* parse.y (parser_here_document): do not append already appended
	  and disposed code fragment.  [ruby-dev:48647] [Bug ruby#10392]


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_1@48003 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

Author: nagachika

ChangeLog

@@ -1,3 +1,8 @@
+Sun Oct 19 03:13:38 2014  Nobuyoshi Nakada  <[email protected]>
+
+	* parse.y (parser_here_document): do not append already appended
+	  and disposed code fragment.  [ruby-dev:48647] [Bug #10392]
+
 Thu Oct 16 22:10:11 2014  Nobuyoshi Nakada  <[email protected]>
 
 	* ext/stringio/stringio.c (strio_write): ASCII-8BIT StringIO

parse.y

@@ -6547,7 +6547,10 @@ parser_here_document(struct parser_params *parser, NODE *here)
 	    if (pend < lex_pend) rb_str_cat(str, "\n", 1);
 	    lex_goto_eol(parser);
 	    if (nextc() == -1) {
-		if (str) dispose_string(str);
+		if (str) {
+		    dispose_string(str);
+		    str = 0;
+		}
 		goto error;
 	    }
 	} while (!whole_match_p(eos, len, indent));

test/ripper/test_scanner_events.rb

@@ -708,6 +708,10 @@ def test_tstring_content_HEREDOC
     assert_equal ["there\n""heredoc", "\n"],
                  scan('tstring_content', "<<""EOS\n""there\n""heredoc\#@foo\nEOS"),
                  bug7255
+    bug10392 = '[ruby-dev:48647] [Bug #10392]'
+    assert_equal [" E\n\n"],
+                 scan('tstring_content', "<<""'E'\n E\n\n"),
+                 bug10392
   end
 
   def test_heredoc_end

version.h

@@ -1,10 +1,10 @@
 #define RUBY_VERSION "2.1.4"
-#define RUBY_RELEASE_DATE "2014-10-16"
-#define RUBY_PATCHLEVEL 259
+#define RUBY_RELEASE_DATE "2014-10-19"
+#define RUBY_PATCHLEVEL 260
 
 #define RUBY_RELEASE_YEAR 2014
 #define RUBY_RELEASE_MONTH 10
-#define RUBY_RELEASE_DAY 16
+#define RUBY_RELEASE_DAY 19
 
 #include "ruby/version.h"