NOTES

NOTES
=====

Random notes taken from random .i files out there in the internets:

https://svn.apache.org/repos/asf/subversion/trunk/subversion/bindings/swig/

/* -----------------------------------------------------------------------
   The following struct members have to be read-only because otherwise
   strings assigned to then would never be freed, resulting in memory
   leaks. This prevents the swig warning "Warning(451): Setting const
   char * member may leak memory."
*/
%immutable svn_log_changed_path_t::copyfrom_path;
%immutable svn_dirent_t::last_author;
%immutable svn_error_t::message;
%immutable svn_error_t::file;

/* ### need to use freearg or somesuch to ensure the string is freed.
   ### watch out for 'return' anywhere in the binding code. */

#ifdef SWIGPYTHON
%typemap(argout) (char *buffer, apr_size_t *len) {
  %append_output(PyString_FromStringAndSize($1, *$2));
  free($1);
}
#endif
#ifdef SWIGPERL
%typemap(argout) (char *buffer, apr_size_t *len) {
  %append_output(sv_2mortal(newSVpvn($1, *$2)));
  free($1);
}
#endif
#ifdef SWIGRUBY
%typemap(argout) (char *buffer, apr_size_t *len) {
  %append_output(*$2 == 0 ? Qnil : rb_str_new($1, *$2));
  free($1);
}
#endif

%extend svn_commit_info_t
{
  svn_commit_info_t(apr_pool_t *pool) {
    return svn_create_commit_info(pool);
  };

  ~svn_commit_info_t() {
  };

  svn_commit_info_t *dup(apr_pool_t *pool) {
    return svn_commit_info_dup(self, pool);
  };
}

%init %{
#if defined(SVN_AVOID_CIRCULAR_LINKAGE_AT_ALL_COSTS_HACK)
  svn_swig_pl_bind_current_pool_fns (&svn_swig_pl_get_current_pool,
                                     &svn_swig_pl_set_current_pool);
#endif
%}

%apply const char *NOT_NULL {
  const char *path
};