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/////////////////////////////////////////////////////////////
// //
// Copyright (c) 2003-2017 by The University of Queensland //
// Centre for Geoscience Computing //
// http://earth.uq.edu.au/centre-geoscience-computing //
// //
// Primary Business: Brisbane, Queensland, Australia //
// Licensed under the Open Software License version 3.0 //
// http://www.apache.org/licenses/LICENSE-2.0 //
// //
/////////////////////////////////////////////////////////////
namespace esys
{
namespace lsm
{
namespace bpu
{
template <typename TmplExtractType>
PythonIterIterator<TmplExtractType>::PythonIterIterator(
boost::python::object &iteratable
)
: m_hasNext(true),
m_next(),
m_iter(iteratable.attr("__iter__")())
{
update();
}
template <typename TmplExtractType>
bool PythonIterIterator<TmplExtractType>::hasNext() const
{
return m_hasNext;
}
template <typename TmplExtractType>
TmplExtractType PythonIterIterator<TmplExtractType>::next()
{
boost::python::object next = m_next;
update();
return boost::python::extract<TmplExtractType>(next);
}
template <typename TmplExtractType>
void PythonIterIterator<TmplExtractType>::update()
{
try
{
#if PY_VERSION_HEX >= 0x03000000
m_next = m_iter.attr("__next__")();
#else
m_next = m_iter.attr("next")();
#endif
}
catch (boost::python::error_already_set &e)
{
if (!PyErr_ExceptionMatches(PyExc_StopIteration))
{
throw;
}
PyErr_Clear();
m_hasNext = false;
}
}
}
}
}
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