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// Helper macros and typemaps for use in Tensorflow swig files.
//
%{
#include <memory>
#include "tensorflow/core/platform/port.h"
using tensorflow::uint64;
using tensorflow::string;
template<class T>
bool _PyObjAs(PyObject *pystr, T* cstr) {
T::undefined; // You need to define specialization _PyObjAs<T>
}
template<class T>
PyObject *_PyObjFrom(const T& c) {
T::undefined; // You need to define specialization _PyObjFrom<T>
}
#ifdef HAS_GLOBAL_STRING
template<>
bool _PyObjAs(PyObject *pystr, ::string* cstr) {
char *buf;
Py_ssize_t len;
#if PY_VERSION_HEX >= 0x03030000
if (PyUnicode_Check(pystr)) {
buf = PyUnicode_AsUTF8AndSize(pystr, &len);
if (!buf) return false;
} else // NOLINT
#endif
if (PyBytes_AsStringAndSize(pystr, &buf, &len) == -1) return false;
if (cstr) cstr->assign(buf, len);
return true;
}
#endif
template<>
bool _PyObjAs(PyObject *pystr, std::string* cstr) {
char *buf;
Py_ssize_t len;
#if PY_VERSION_HEX >= 0x03030000
if (PyUnicode_Check(pystr)) {
buf = PyUnicode_AsUTF8AndSize(pystr, &len);
if (!buf) return false;
} else // NOLINT
#endif
if (PyBytes_AsStringAndSize(pystr, &buf, &len) == -1) return false;
if (cstr) cstr->assign(buf, len);
return true;
}
#ifdef HAS_GLOBAL_STRING
template<>
PyObject* _PyObjFrom(const ::string& c) {
return PyString_FromStringAndSize(c.data(), c.size());
}
#endif
template<>
PyObject* _PyObjFrom(const std::string& c) {
return PyString_FromStringAndSize(c.data(), c.size());
}
PyObject* _SwigString_FromString(const string& s) {
return PyUnicode_FromStringAndSize(s.data(), s.size());
}
%}
%typemap(in) string {
if (!_PyObjAs<string>($input, &$1)) return NULL;
}
%typemap(in) const string& (string temp) {
if (!_PyObjAs<string>($input, &temp)) return NULL;
$1 = &temp;
}
%typemap(out) string {
$result = PyString_FromStringAndSize($1.data(), $1.size());
}
%typemap(out) const string& {
$result = PyString_FromStringAndSize($1->data(), $1->size());
}
%typemap(in, numinputs = 0) string* OUTPUT (string temp) {
$1 = &temp;
}
%typemap(argout) string * OUTPUT {
PyObject *str = PyString_FromStringAndSize($1->data(), $1->length());
if (!str) SWIG_fail;
%append_output(str);
}
%typemap(argout) string* INOUT = string* OUTPUT;
%typemap(varout) string {
$result = PyString_FromStringAndSize($1.data(), $1.size());
}
%define _LIST_OUTPUT_TYPEMAP(type, py_converter)
%typemap(in) std::vector<type>(std::vector<type> temp) {
if (!vector_input_helper($input, &temp, _PyObjAs<type>)) {
if (!PyErr_Occurred())
PyErr_SetString(PyExc_TypeError, "sequence(type) expected");
return NULL;
}
$1 = temp;
}
%typemap(in) const std::vector<type>& (std::vector<type> temp),
const std::vector<type>* (std::vector<type> temp) {
if (!vector_input_helper($input, &temp, _PyObjAs<type>)) {
if (!PyErr_Occurred())
PyErr_SetString(PyExc_TypeError, "sequence(type) expected");
return NULL;
}
$1 = &temp;
}
%typemap(in,numinputs=0)
std::vector<type>* OUTPUT (std::vector<type> temp),
hash_set<type>* OUTPUT (hash_set<type> temp),
set<type>* OUTPUT (set<type> temp) {
$1 = &temp;
}
%typemap(argout) std::vector<type>* OUTPUT, set<type>* OUTPUT, hash_set<type>* OUTPUT {
%append_output(list_output_helper($1, &py_converter));
}
%typemap(out) std::vector<type> {
$result = vector_output_helper(&$1, &py_converter);
}
%typemap(out) std::vector<type>*, const std::vector<type>& {
$result = vector_output_helper($1, &py_converter);
}
%enddef
_LIST_OUTPUT_TYPEMAP(string, _SwigString_FromString);
_LIST_OUTPUT_TYPEMAP(unsigned long long, PyLong_FromUnsignedLongLong);
%typemap(in) uint64 {
// TODO(gps): Check if another implementation
// from hosting/images/util/image-hosting-utils.swig is better. May be not.
%#if PY_MAJOR_VERSION < 3
if (PyInt_Check($input)) {
$1 = static_cast<uint64>(PyInt_AsLong($input));
} else
%#endif
if (PyLong_Check($input)) {
$1 = static_cast<uint64>(PyLong_AsUnsignedLongLong($input));
} else {
PyErr_SetString(PyExc_TypeError,
"int or long value expected for argument \"$1_name\"");
}
// TODO(mrovner): Make consistent use of SWIG_fail vs. return NULL.
if (PyErr_Occurred()) return NULL;
}
%define _COPY_TYPEMAPS(oldtype, newtype)
typedef oldtype newtype;
%apply oldtype * OUTPUT { newtype * OUTPUT };
%apply oldtype & OUTPUT { newtype & OUTPUT };
%apply oldtype * INPUT { newtype * INPUT };
%apply oldtype & INPUT { newtype & INPUT };
%apply oldtype * INOUT { newtype * INOUT };
%apply oldtype & INOUT { newtype & INOUT };
%apply std::vector<oldtype> * OUTPUT { std::vector<newtype> * OUTPUT };
%enddef
_COPY_TYPEMAPS(unsigned long long, uint64);
// SWIG macros for explicit API declaration.
// Usage:
//
// %ignoreall
// %unignore SomeName; // namespace / class / method
// %include "somelib.h"
// %unignoreall // mandatory closing "bracket"
%define %ignoreall %ignore ""; %enddef
%define %unignore %rename("%s") %enddef
%define %unignoreall %rename("%s") ""; %enddef
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