Mercurial > hgrepos > Python > libs > ConfigMix

comparison configmix/_py_helper.h @ 560:81238ea2dbe3

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Implement and use more helper functions. Improve comments.
author Franz Glasner <fzglas.hg@dom66.de>
date Thu, 06 Jan 2022 19:37:03 +0100
parents bb160a1e67d7
children f75c5b13a1d7
comparison
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559:bb160a1e67d7 560:81238ea2dbe3
11 #if !defined(_PY_HELPER_H_d9df407295df4884a88e56699f6c6d8d) 11 #if !defined(_PY_HELPER_H_d9df407295df4884a88e56699f6c6d8d)
12 #define _PY_HELPER_H_d9df407295df4884a88e56699f6c6d8d 12 #define _PY_HELPER_H_d9df407295df4884a88e56699f6c6d8d
13 13
14 #if PY_VERSION_HEX < 0x030A0000 14 #if PY_VERSION_HEX < 0x030A0000
15 15
16 /*
17 * Return a new owned reference to an object
18 */
16 static inline 19 static inline
17 PyObject * 20 PyObject *
18 Py_NewRef(PyObject *obj) 21 Py_NewRef(PyObject *obj)
19 { 22 {
20 Py_INCREF(obj); 23 Py_INCREF(obj);
21 return obj; 24 return obj;
22 } 25 }
23 26
24 27
28 /*
29 * Return a new owned reference to an object when the input can be NULL
30 */
25 static inline 31 static inline
26 PyObject * 32 PyObject *
27 Py_XNewRef(PyObject *obj) 33 Py_XNewRef(PyObject *obj)
28 { 34 {
29 Py_XINCREF(obj); 35 Py_XINCREF(obj);
65 py_object_isnot(PyObject *obj1, PyObject *obj2) 71 py_object_isnot(PyObject *obj1, PyObject *obj2)
66 { 72 {
67 return (obj1 != obj2); 73 return (obj1 != obj2);
68 } 74 }
69 75
76
77 /**
78 * Copy from source to destination and make an owned reference.
79 * Also safely clear the destination before.
80 */
81 static inline
82 void
83 py_assign(PyObject **dest, PyObject *src)
84 {
85 Py_XDECREF(*dest);
86 *dest = Py_NewRef(src);
87 }
88
89
90 /**
91 * Copy from source to destination and make an owned reference.
92 * Also safely clear the destination before. The source object may be NULL.
93 */
94 static inline
95 void
96 py_assign_x(PyObject **dest, PyObject *src)
97 {
98 Py_XDECREF(*dest);
99 *dest = Py_XNewRef(src);
100 }
101
102
103 /*
104 * Transfer from a borrowed reference to an owned one and clear the source.
105 * Also safely clear the destination before.
106 */
107 static inline
108 void
109 py_transfer_borrowed(PyObject **dest, PyObject **src)
110 {
111 Py_XDECREF(*dest);
112 *dest = Py_NewRef(*src);
113 *src = NULL;
114 }
115
116
117 /*
118 * Transfer from a borrowed reference to an owned one and clear the source.
119 * Also safely clear the destination before. The source object may be NULL.
120 */
121 static inline
122 void
123 py_transfer_x_borrowed(PyObject **dest, PyObject **src)
124 {
125 Py_XDECREF(*dest);
126 *dest = Py_XNewRef(*src);
127 *src = NULL;
128 }
129
130
131 /*
132 * Transfer ownership from a owned reference to an owned one and clear the
133 * source.
134 * Also safely clear the destination before.
135 */
136 static inline
137 void
138 py_transfer_owned(PyObject **dest, PyObject **src)
139 {
140 Py_XDECREF(*dest);
141 *dest = *src;
142 *src = NULL;
143 }
144
145
70 #endif 146 #endif