deimos.python.pyport source code

1 /**
2   Mirror _pyport.h
3   */
4 module deimos.python.pyport;
5 
6 /* D long is always 64 bits, but when the Python/C API mentions long, it is of
7  * course referring to the C type long, the size of which is 32 bits on both
8  * X86 and X86_64 under Windows, but 32 bits on X86 and 64 bits on X86_64 under
9  * most other operating systems. */
10 
11 /// _
12 alias long C_longlong;
13 /// _
14 alias ulong C_ulonglong;
15 
16 version(Windows) {
17 /// _
18   alias int C_long;
19 /// _
20   alias uint C_ulong;
21 } else {
22   version (X86) {
23 /// _
24     alias int C_long;
25 /// _
26     alias uint C_ulong;
27   } else {
28 /// _
29     alias long C_long;
30 /// _
31     alias ulong C_ulong;
32   }
33 }
34 
35 
36 /*
37  * Py_ssize_t is defined as a signed type which is 8 bytes on X86_64 and 4
38  * bytes on X86.
39  */
40 version(Python_2_5_Or_Later){
41     version (X86_64) {
42         /// _
43         alias long Py_ssize_t;
44     } else {
45         /// _
46         alias int Py_ssize_t;
47     }
48     version(Python_3_2_Or_Later) {
49         /// Availability: >= 3.2
50         /// (Py_hash_t invariably replaces C_long, so we always define it for
51         /// convenience)
52         alias Py_ssize_t Py_hash_t;
53         /// Availability: >= 3.2
54         alias size_t Py_uhash_t;
55     }else{
56         alias C_long Py_hash_t;
57     }
58 }else {
59     /*
60      * Seems Py_ssize_t didn't exist in 2.4, and int was everywhere it is now.
61      */
62     /// _
63     alias int Py_ssize_t;
64     /*
65      * Seems Py_hash_t didn't exist in 2.4, and C_long was everywhere it is now.
66      */
67     /// _
68     alias C_long Py_hash_t;
69 }
70 
71 version(linux) version(DigitalMars) version = dmd_linux;
72 version(OSX) version(DigitalMars) version = dmd_osx;
73 template PyAPI_DATA(string decl) {
74 
75     version(dmd_linux) {
76         // has to be special
77 
78         // todo: why does ldc/linux not work this way?
79         //  --export-dynamic seems not to change anything
80         // export causes dmd to prepend symbols with _imp__, so no use.
81         // extern is not necessary for single-command builds
82         //               necessary for traditional per-file builds.
83         enum PyAPI_DATA = (q{
84             extern(C)
85             extern
86             __gshared
87         } ~ decl ~ ";");
88     } else version(dmd_osx) {
89         enum PyAPI_DATA = (q{
90             extern(C)
91             extern
92             __gshared
93         } ~ decl ~ ";");
94     } else {
95         enum PyAPI_DATA = (q{
96             extern(C)
97             extern
98             export
99             __gshared
100         } ~ decl ~ ";");
101     }
102 }