# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1459954471 14400
# Node ID ad90fb5a139f9c290415da7c09853e3614d8cf9b
# Parent  4c61f8313f582b9e5fdaa2d36d81b5bf3933019a
eliminate memory leaks from classdef parse tree (bug #47372)

* base-list.h (octave_base_list::~octave_base_list): Declare virtual.
* oct-parse.in.yy (parse_fcn_file): Delete parser::classdef_object
after meta class object is constructed.

diff -r 4c61f8313f58 -r ad90fb5a139f libinterp/parse-tree/oct-parse.in.yy
--- a/libinterp/parse-tree/oct-parse.in.yy	Mon Apr 04 14:50:01 2016 -0400
+++ b/libinterp/parse-tree/oct-parse.in.yy	Wed Apr 06 10:54:31 2016 -0400
@@ -4201,6 +4201,10 @@
 
               fcn_ptr =
                 parser.classdef_object->make_meta_class (is_at_folder);
+
+              delete (parser.classdef_object);
+
+              parser.classdef_object = 0;
             }
           else if (fcn_ptr)
             {
diff -r 4c61f8313f58 -r ad90fb5a139f liboctave/util/base-list.h
--- a/liboctave/util/base-list.h	Mon Apr 04 14:50:01 2016 -0400
+++ b/liboctave/util/base-list.h	Wed Apr 06 10:54:31 2016 -0400
@@ -121,7 +121,7 @@
     return *this;
   }
 
-  ~octave_base_list (void) { }
+  virtual ~octave_base_list (void) { }
 
 private: