deimos.python.bytearrayobject source code

1 /**
2  * Mirror _bytearrayobject.h
3  *
4  * Type PyByteArrayObject represents a mutable array of bytes.
5  * The Python API is that of a sequence;
6  * the bytes are mapped to ints in [0, 256$(RPAREN).
7  * Bytes are not characters; they may be used to encode characters.
8  * The only way to go between bytes and str/unicode is via encoding
9  * and decoding.
10  * For the convenience of C programmers, the bytes type is considered
11  * to contain a char pointer, not an unsigned char pointer.
12  */
13 module deimos.python.bytearrayobject;
14 
15 import deimos.python.pyport;
16 import deimos.python.object;
17 
18 extern(C):
19 // Python-header-file: Include/bytearrayobject.h:
20 
21 version(Python_2_6_Or_Later) {
22     /// subclass of PyVarObject
23     /// Availability: >= 2.6
24     struct PyByteArrayObject {
25         mixin PyObject_VAR_HEAD!();
26         version(Python_3_4_Or_Later) {
27             /// _
28             Py_ssize_t ob_alloc;
29             /// _
30             char* ob_bytes;
31             /// _
32             char* ob_start;
33             /// _
34             int ob_exports;
35         }else{
36             /** how many buffer exports */
37             int ob_exports;
38             /** How many bytes allocated */
39             Py_ssize_t ob_alloc;
40             /// _
41             char* ob_bytes;
42         }
43 
44     }
45 
46     /* Type object */
47 /// Availability: >= 2.6
48     mixin(PyAPI_DATA!"PyTypeObject PyByteArray_Type");
49 /// Availability: >= 2.6
50     mixin(PyAPI_DATA!"PyTypeObject PyByteArrayIter_Type");
51 
52     /** Type check macro
53 Availability: >= 2.6
54      */
55     int PyByteArray_Check()(PyObject* self) {
56         return PyObject_TypeCheck(self, &PyByteArray_Type);
57     }
58 
59     /** Type check macro
60  Availability: >= 2.6
61  */
62     int PyByteArray_CheckExact()(PyObject* self) {
63         return Py_TYPE(self) == &PyByteArray_Type;
64     }
65 
66     /* Direct API functions */
67     /// Availability: >= 2.6
68     PyObject* PyByteArray_FromObject(PyObject*);
69     /// Availability: >= 2.6
70     PyObject* PyByteArray_Concat(PyObject*, PyObject*);
71     /// Availability: >= 2.6
72     PyObject* PyByteArray_FromStringAndSize(const char*, Py_ssize_t);
73     /// Availability: >= 2.6
74     Py_ssize_t PyByteArray_Size(PyObject*);
75     /// Availability: >= 2.6
76     char* PyByteArray_AsString(PyObject*);
77     /// Availability: >= 2.6
78     int PyByteArray_Resize(PyObject*, Py_ssize_t);
79     /// template trading safety for speed
80     /// Availability: >= 2.6
81     char* PyByteArray_AS_STRING()(PyObject* self) {
82         assert(PyByteArray_Check(self));
83         if(Py_SIZE(self)) {
84             return (cast(PyByteArrayObject*) self).ob_bytes;
85         }else{
86             return "\0".ptr;
87         }
88     }
89     /// template trading safety for speed
90     /// Availability: >= 2.6
91     auto PyByteArray_GET_SIZE()(PyObject* self) {
92         assert(PyByteArray_Check(self));
93         return Py_SIZE(cast(PyVarObject*) self);
94     }
95 }