1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
|
#pragma once
#include <torch/csrc/python_headers.h>
#include <stdexcept>
#include <string>
#include <torch/csrc/utils/object_ptr.h>
// Utilities for handling Python strings. Note that PyString, when defined, is
// the same as PyBytes.
// Returns true if obj is a bytes/str or unicode object
// As of Python 3.6, this does not require the GIL
inline bool THPUtils_checkString(PyObject* obj) {
return PyBytes_Check(obj) || PyUnicode_Check(obj);
}
// Unpacks PyBytes (PyString) or PyUnicode as std::string
// PyBytes are unpacked as-is. PyUnicode is unpacked as UTF-8.
// NOTE: this method requires the GIL
inline std::string THPUtils_unpackString(PyObject* obj) {
if (PyBytes_Check(obj)) {
size_t size = PyBytes_GET_SIZE(obj);
return std::string(PyBytes_AS_STRING(obj), size);
}
if (PyUnicode_Check(obj)) {
Py_ssize_t size;
const char* data = PyUnicode_AsUTF8AndSize(obj, &size);
if (!data) {
throw std::runtime_error("error unpacking string as utf-8");
}
return std::string(data, (size_t)size);
}
throw std::runtime_error("unpackString: expected bytes or unicode object");
}
inline PyObject* THPUtils_packString(const char* str) {
return PyUnicode_FromString(str);
}
inline PyObject* THPUtils_packString(const std::string& str) {
return PyUnicode_FromStringAndSize(str.c_str(), str.size());
}
inline PyObject* THPUtils_internString(const std::string& str) {
return PyUnicode_InternFromString(str.c_str());
}
// Precondition: THPUtils_checkString(obj) must be true
inline bool THPUtils_isInterned(PyObject* obj) {
return PyUnicode_CHECK_INTERNED(obj);
}
// Precondition: THPUtils_checkString(obj) must be true
inline void THPUtils_internStringInPlace(PyObject** obj) {
PyUnicode_InternInPlace(obj);
}
|
