diff oct-py-types.cc @ 320:c2aa34730dc9

Convert scalar struct into Python dict (fixes issue #57) * oct-py-types.cc, oct-py-types.h: New files for conversion of objects between Octave and Python APIs. * Makefile.am (COMMON_SOURCE_FILES, PYTAVE_HEADER_FILES): Include new files. * octave_to_python.cc (pytave::octvalue_to_pyobj): Add case to handle scalar struct instead of struct array. * @pyobject/pyobject.m: Add %!tests for pyobject from scalar struct and %!error tests for failure with struct array.
author Mike Miller <mtmiller@octave.org>
date Thu, 11 Aug 2016 16:12:35 -0700
parents
children fd5881d48238
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/oct-py-types.cc	Thu Aug 11 16:12:35 2016 -0700
@@ -0,0 +1,67 @@
+/*
+
+Copyright (C) 2016 Mike Miller
+
+This file is part of Pytave.
+
+Pytave is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 3 of the License, or (at your
+option) any later version.
+
+Pytave is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Pytave; see the file COPYING.  If not, see
+<http://www.gnu.org/licenses/>.
+
+*/
+
+#if defined (HAVE_CONFIG_H)
+#  include <config.h>
+#endif
+
+#include <octave/oct-map.h>
+#include <octave/quit.h>
+
+#include "oct-py-types.h"
+
+// FIXME: only here to bootstrap nested conversions needed in this file
+#include "octave_to_python.h"
+
+namespace pytave
+{
+
+inline PyObject *
+wrap_octvalue_to_pyobj (const octave_value& value)
+{
+  boost::python::object obj;
+  octvalue_to_pyobj (obj, value);
+  PyObject *ptr = obj.ptr ();
+  Py_INCREF (ptr);
+  return ptr;
+}
+
+PyObject *
+make_py_dict (const octave_scalar_map& map)
+{
+  PyObject *dict = PyDict_New ();
+  if (! dict)
+    octave_throw_bad_alloc ();
+
+  for (auto p = map.begin (); p != map.end (); ++p)
+    {
+      PyObject *key = wrap_octvalue_to_pyobj (map.key (p));
+      PyObject *item = wrap_octvalue_to_pyobj (map.contents (p));
+
+      if (PyDict_SetItem (dict, key, item) < 0)
+        throw boost::python::error_already_set ();
+    }
+
+  return dict;
+}
+
+}