mirror of
https://github.com/explosion/spaCy.git
synced 2025-10-30 23:47:31 +03:00
418 lines
9.4 KiB
C
418 lines
9.4 KiB
C
/*
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* This is a convenience header file providing compatibility utilities
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* for supporting Python 2 and Python 3 in the same code base.
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*
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* If you want to use this for your own projects, it's recommended to make a
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* copy of it. Although the stuff below is unlikely to change, we don't provide
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* strong backwards compatibility guarantees at the moment.
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*/
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#ifndef _NPY_3KCOMPAT_H_
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#define _NPY_3KCOMPAT_H_
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#include <Python.h>
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#include <stdio.h>
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#if PY_VERSION_HEX >= 0x03000000
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#ifndef NPY_PY3K
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#define NPY_PY3K 1
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#endif
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#endif
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#include "numpy/npy_common.h"
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#include "numpy/ndarrayobject.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* PyInt -> PyLong
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*/
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#if defined(NPY_PY3K)
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/* Return True only if the long fits in a C long */
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static NPY_INLINE int PyInt_Check(PyObject *op) {
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int overflow = 0;
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if (!PyLong_Check(op)) {
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return 0;
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}
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PyLong_AsLongAndOverflow(op, &overflow);
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return (overflow == 0);
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}
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#define PyInt_FromLong PyLong_FromLong
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#define PyInt_AsLong PyLong_AsLong
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#define PyInt_AS_LONG PyLong_AsLong
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#define PyInt_AsSsize_t PyLong_AsSsize_t
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/* NOTE:
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*
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* Since the PyLong type is very different from the fixed-range PyInt,
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* we don't define PyInt_Type -> PyLong_Type.
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*/
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#endif /* NPY_PY3K */
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/*
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* PyString -> PyBytes
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*/
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#if defined(NPY_PY3K)
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#define PyString_Type PyBytes_Type
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#define PyString_Check PyBytes_Check
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#define PyStringObject PyBytesObject
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#define PyString_FromString PyBytes_FromString
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#define PyString_FromStringAndSize PyBytes_FromStringAndSize
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#define PyString_AS_STRING PyBytes_AS_STRING
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#define PyString_AsStringAndSize PyBytes_AsStringAndSize
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#define PyString_FromFormat PyBytes_FromFormat
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#define PyString_Concat PyBytes_Concat
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#define PyString_ConcatAndDel PyBytes_ConcatAndDel
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#define PyString_AsString PyBytes_AsString
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#define PyString_GET_SIZE PyBytes_GET_SIZE
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#define PyString_Size PyBytes_Size
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#define PyUString_Type PyUnicode_Type
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#define PyUString_Check PyUnicode_Check
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#define PyUStringObject PyUnicodeObject
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#define PyUString_FromString PyUnicode_FromString
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#define PyUString_FromStringAndSize PyUnicode_FromStringAndSize
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#define PyUString_FromFormat PyUnicode_FromFormat
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#define PyUString_Concat PyUnicode_Concat2
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#define PyUString_ConcatAndDel PyUnicode_ConcatAndDel
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#define PyUString_GET_SIZE PyUnicode_GET_SIZE
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#define PyUString_Size PyUnicode_Size
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#define PyUString_InternFromString PyUnicode_InternFromString
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#define PyUString_Format PyUnicode_Format
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#else
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#define PyBytes_Type PyString_Type
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#define PyBytes_Check PyString_Check
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#define PyBytesObject PyStringObject
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#define PyBytes_FromString PyString_FromString
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#define PyBytes_FromStringAndSize PyString_FromStringAndSize
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#define PyBytes_AS_STRING PyString_AS_STRING
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#define PyBytes_AsStringAndSize PyString_AsStringAndSize
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#define PyBytes_FromFormat PyString_FromFormat
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#define PyBytes_Concat PyString_Concat
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#define PyBytes_ConcatAndDel PyString_ConcatAndDel
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#define PyBytes_AsString PyString_AsString
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#define PyBytes_GET_SIZE PyString_GET_SIZE
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#define PyBytes_Size PyString_Size
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#define PyUString_Type PyString_Type
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#define PyUString_Check PyString_Check
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#define PyUStringObject PyStringObject
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#define PyUString_FromString PyString_FromString
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#define PyUString_FromStringAndSize PyString_FromStringAndSize
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#define PyUString_FromFormat PyString_FromFormat
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#define PyUString_Concat PyString_Concat
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#define PyUString_ConcatAndDel PyString_ConcatAndDel
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#define PyUString_GET_SIZE PyString_GET_SIZE
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#define PyUString_Size PyString_Size
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#define PyUString_InternFromString PyString_InternFromString
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#define PyUString_Format PyString_Format
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#endif /* NPY_PY3K */
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static NPY_INLINE void
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PyUnicode_ConcatAndDel(PyObject **left, PyObject *right)
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{
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PyObject *newobj;
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newobj = PyUnicode_Concat(*left, right);
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Py_DECREF(*left);
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Py_DECREF(right);
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*left = newobj;
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}
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static NPY_INLINE void
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PyUnicode_Concat2(PyObject **left, PyObject *right)
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{
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PyObject *newobj;
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newobj = PyUnicode_Concat(*left, right);
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Py_DECREF(*left);
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*left = newobj;
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}
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/*
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* PyFile_* compatibility
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*/
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#if defined(NPY_PY3K)
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/*
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* Get a FILE* handle to the file represented by the Python object
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*/
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static NPY_INLINE FILE*
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npy_PyFile_Dup(PyObject *file, char *mode)
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{
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int fd, fd2;
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PyObject *ret, *os;
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Py_ssize_t pos;
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FILE *handle;
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/* Flush first to ensure things end up in the file in the correct order */
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ret = PyObject_CallMethod(file, "flush", "");
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if (ret == NULL) {
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return NULL;
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}
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Py_DECREF(ret);
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fd = PyObject_AsFileDescriptor(file);
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if (fd == -1) {
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return NULL;
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}
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os = PyImport_ImportModule("os");
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if (os == NULL) {
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return NULL;
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}
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ret = PyObject_CallMethod(os, "dup", "i", fd);
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Py_DECREF(os);
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if (ret == NULL) {
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return NULL;
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}
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fd2 = PyNumber_AsSsize_t(ret, NULL);
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Py_DECREF(ret);
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#ifdef _WIN32
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handle = _fdopen(fd2, mode);
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#else
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handle = fdopen(fd2, mode);
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#endif
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if (handle == NULL) {
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PyErr_SetString(PyExc_IOError,
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"Getting a FILE* from a Python file object failed");
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}
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ret = PyObject_CallMethod(file, "tell", "");
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if (ret == NULL) {
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fclose(handle);
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return NULL;
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}
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pos = PyNumber_AsSsize_t(ret, PyExc_OverflowError);
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Py_DECREF(ret);
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if (PyErr_Occurred()) {
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fclose(handle);
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return NULL;
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}
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npy_fseek(handle, pos, SEEK_SET);
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return handle;
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}
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/*
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* Close the dup-ed file handle, and seek the Python one to the current position
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*/
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static NPY_INLINE int
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npy_PyFile_DupClose(PyObject *file, FILE* handle)
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{
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PyObject *ret;
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Py_ssize_t position;
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position = npy_ftell(handle);
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fclose(handle);
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ret = PyObject_CallMethod(file, "seek", NPY_SSIZE_T_PYFMT "i", position, 0);
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if (ret == NULL) {
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return -1;
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}
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Py_DECREF(ret);
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return 0;
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}
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static NPY_INLINE int
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npy_PyFile_Check(PyObject *file)
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{
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int fd;
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fd = PyObject_AsFileDescriptor(file);
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if (fd == -1) {
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PyErr_Clear();
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return 0;
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}
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return 1;
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}
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#else
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#define npy_PyFile_Dup(file, mode) PyFile_AsFile(file)
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#define npy_PyFile_DupClose(file, handle) (0)
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#define npy_PyFile_Check PyFile_Check
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#endif
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static NPY_INLINE PyObject*
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npy_PyFile_OpenFile(PyObject *filename, const char *mode)
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{
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PyObject *open;
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open = PyDict_GetItemString(PyEval_GetBuiltins(), "open");
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if (open == NULL) {
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return NULL;
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}
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return PyObject_CallFunction(open, "Os", filename, mode);
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}
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static NPY_INLINE int
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npy_PyFile_CloseFile(PyObject *file)
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{
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PyObject *ret;
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ret = PyObject_CallMethod(file, "close", NULL);
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if (ret == NULL) {
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return -1;
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}
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Py_DECREF(ret);
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return 0;
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}
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/*
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* PyObject_Cmp
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*/
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#if defined(NPY_PY3K)
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static NPY_INLINE int
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PyObject_Cmp(PyObject *i1, PyObject *i2, int *cmp)
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{
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int v;
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v = PyObject_RichCompareBool(i1, i2, Py_LT);
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if (v == 0) {
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*cmp = -1;
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return 1;
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}
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else if (v == -1) {
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return -1;
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}
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v = PyObject_RichCompareBool(i1, i2, Py_GT);
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if (v == 0) {
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*cmp = 1;
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return 1;
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}
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else if (v == -1) {
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return -1;
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}
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v = PyObject_RichCompareBool(i1, i2, Py_EQ);
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if (v == 0) {
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*cmp = 0;
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return 1;
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}
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else {
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*cmp = 0;
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return -1;
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}
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}
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#endif
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/*
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* PyCObject functions adapted to PyCapsules.
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*
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* The main job here is to get rid of the improved error handling
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* of PyCapsules. It's a shame...
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*/
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#if PY_VERSION_HEX >= 0x03000000
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static NPY_INLINE PyObject *
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NpyCapsule_FromVoidPtr(void *ptr, void (*dtor)(PyObject *))
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{
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PyObject *ret = PyCapsule_New(ptr, NULL, dtor);
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if (ret == NULL) {
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PyErr_Clear();
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}
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return ret;
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}
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static NPY_INLINE PyObject *
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NpyCapsule_FromVoidPtrAndDesc(void *ptr, void* context, void (*dtor)(PyObject *))
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{
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PyObject *ret = NpyCapsule_FromVoidPtr(ptr, dtor);
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if (ret != NULL && PyCapsule_SetContext(ret, context) != 0) {
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PyErr_Clear();
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Py_DECREF(ret);
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ret = NULL;
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}
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return ret;
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}
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static NPY_INLINE void *
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NpyCapsule_AsVoidPtr(PyObject *obj)
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{
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void *ret = PyCapsule_GetPointer(obj, NULL);
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if (ret == NULL) {
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PyErr_Clear();
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}
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return ret;
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}
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static NPY_INLINE void *
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NpyCapsule_GetDesc(PyObject *obj)
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{
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return PyCapsule_GetContext(obj);
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}
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static NPY_INLINE int
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NpyCapsule_Check(PyObject *ptr)
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{
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return PyCapsule_CheckExact(ptr);
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}
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static NPY_INLINE void
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simple_capsule_dtor(PyObject *cap)
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{
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PyArray_free(PyCapsule_GetPointer(cap, NULL));
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}
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#else
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static NPY_INLINE PyObject *
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NpyCapsule_FromVoidPtr(void *ptr, void (*dtor)(void *))
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{
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return PyCObject_FromVoidPtr(ptr, dtor);
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}
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static NPY_INLINE PyObject *
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NpyCapsule_FromVoidPtrAndDesc(void *ptr, void* context,
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void (*dtor)(void *, void *))
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{
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return PyCObject_FromVoidPtrAndDesc(ptr, context, dtor);
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}
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static NPY_INLINE void *
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NpyCapsule_AsVoidPtr(PyObject *ptr)
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{
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return PyCObject_AsVoidPtr(ptr);
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}
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static NPY_INLINE void *
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NpyCapsule_GetDesc(PyObject *obj)
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{
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return PyCObject_GetDesc(obj);
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}
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static NPY_INLINE int
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NpyCapsule_Check(PyObject *ptr)
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{
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return PyCObject_Check(ptr);
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}
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static NPY_INLINE void
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simple_capsule_dtor(void *ptr)
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{
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PyArray_free(ptr);
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}
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#endif
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/*
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* Hash value compatibility.
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* As of Python 3.2 hash values are of type Py_hash_t.
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* Previous versions use C long.
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*/
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#if PY_VERSION_HEX < 0x03020000
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typedef long npy_hash_t;
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#define NPY_SIZEOF_HASH_T NPY_SIZEOF_LONG
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#else
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typedef Py_hash_t npy_hash_t;
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#define NPY_SIZEOF_HASH_T NPY_SIZEOF_INTP
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* _NPY_3KCOMPAT_H_ */
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