js/src/ctypes/typedefs.h@b8a032363ba2
js/src/ctypes/typedefs.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 /**
7 * This header contains the builtin types available for arguments and return
8 * values, representing their C counterparts. They are listed inside macros
9 * that the #includer is expected to #define. Format is:
10 *
11 * DEFINE_X_TYPE(typename, ctype, ffitype)
12 *
13 * where 'typename' is the name of the type constructor (accessible as
14 * ctypes.typename), 'ctype' is the corresponding C type declaration (from
15 * which sizeof(ctype) and templated type conversions will be derived), and
16 * 'ffitype' is the ffi_type to use. (Special types, such as 'void' and the
17 * pointer, array, and struct types are handled separately.)
18 *
19 * This header lacks a #ifndef wrapper because it is deliberately #included
20 * multiple times in ctypes/CTypes.h.
21 */
23 // If we're not breaking the types out, combine them together under one
24 // DEFINE_TYPE macro. Otherwise, turn off whichever ones we're not using.
25 #if defined(DEFINE_TYPE)
26 # define DEFINE_CHAR_TYPE(x, y, z) DEFINE_TYPE(x, y, z)
27 # define DEFINE_JSCHAR_TYPE(x, y, z) DEFINE_TYPE(x, y, z)
28 # define DEFINE_BOOL_TYPE(x, y, z) DEFINE_TYPE(x, y, z)
29 # define DEFINE_INT_TYPE(x, y, z) DEFINE_TYPE(x, y, z)
30 # define DEFINE_WRAPPED_INT_TYPE(x, y, z) DEFINE_TYPE(x, y, z)
31 # define DEFINE_FLOAT_TYPE(x, y, z) DEFINE_TYPE(x, y, z)
32 #else
33 # ifndef DEFINE_BOOL_TYPE
34 # define DEFINE_BOOL_TYPE(x, y, z)
35 # endif
36 # ifndef DEFINE_CHAR_TYPE
37 # define DEFINE_CHAR_TYPE(x, y, z)
38 # endif
39 # ifndef DEFINE_JSCHAR_TYPE
40 # define DEFINE_JSCHAR_TYPE(x, y, z)
41 # endif
42 # ifndef DEFINE_INT_TYPE
43 # define DEFINE_INT_TYPE(x, y, z)
44 # endif
45 # ifndef DEFINE_WRAPPED_INT_TYPE
46 # define DEFINE_WRAPPED_INT_TYPE(x, y, z)
47 # endif
48 # ifndef DEFINE_FLOAT_TYPE
49 # define DEFINE_FLOAT_TYPE(x, y, z)
50 # endif
51 #endif
53 // MSVC doesn't have ssize_t. Help it along a little.
54 #ifdef HAVE_SSIZE_T
55 #define CTYPES_SSIZE_T ssize_t
56 #else
57 #define CTYPES_SSIZE_T intptr_t
58 #endif
60 // Some #defines to make handling of types whose length varies by platform
61 // easier. These could be implemented as configure tests, but the expressions
62 // are all statically resolvable so there's no need. (See CTypes.cpp for the
63 // appropriate PR_STATIC_ASSERTs; they can't go here since this header is
64 // used in places where such asserts are illegal.)
65 #define CTYPES_FFI_BOOL (sizeof(bool) == 1 ? ffi_type_uint8 : ffi_type_uint32)
66 #define CTYPES_FFI_LONG (sizeof(long) == 4 ? ffi_type_sint32 : ffi_type_sint64)
67 #define CTYPES_FFI_ULONG (sizeof(long) == 4 ? ffi_type_uint32 : ffi_type_uint64)
68 #define CTYPES_FFI_SIZE_T (sizeof(size_t) == 4 ? ffi_type_uint32 : ffi_type_uint64)
69 #define CTYPES_FFI_SSIZE_T (sizeof(size_t) == 4 ? ffi_type_sint32 : ffi_type_sint64)
70 #define CTYPES_FFI_OFF_T (sizeof(off_t) == 4 ? ffi_type_sint32 : ffi_type_sint64)
71 #define CTYPES_FFI_INTPTR_T (sizeof(uintptr_t) == 4 ? ffi_type_sint32 : ffi_type_sint64)
72 #define CTYPES_FFI_UINTPTR_T (sizeof(uintptr_t) == 4 ? ffi_type_uint32 : ffi_type_uint64)
74 // The meat.
75 DEFINE_BOOL_TYPE (bool, bool, CTYPES_FFI_BOOL)
76 DEFINE_INT_TYPE (int8_t, int8_t, ffi_type_sint8)
77 DEFINE_INT_TYPE (int16_t, int16_t, ffi_type_sint16)
78 DEFINE_INT_TYPE (int32_t, int32_t, ffi_type_sint32)
79 DEFINE_INT_TYPE (uint8_t, uint8_t, ffi_type_uint8)
80 DEFINE_INT_TYPE (uint16_t, uint16_t, ffi_type_uint16)
81 DEFINE_INT_TYPE (uint32_t, uint32_t, ffi_type_uint32)
82 DEFINE_INT_TYPE (short, short, ffi_type_sint16)
83 DEFINE_INT_TYPE (unsigned_short, unsigned short, ffi_type_uint16)
84 DEFINE_INT_TYPE (int, int, ffi_type_sint32)
85 DEFINE_INT_TYPE (unsigned_int, unsigned int, ffi_type_uint32)
86 DEFINE_WRAPPED_INT_TYPE(int64_t, int64_t, ffi_type_sint64)
87 DEFINE_WRAPPED_INT_TYPE(uint64_t, uint64_t, ffi_type_uint64)
88 DEFINE_WRAPPED_INT_TYPE(long, long, CTYPES_FFI_LONG)
89 DEFINE_WRAPPED_INT_TYPE(unsigned_long, unsigned long, CTYPES_FFI_ULONG)
90 DEFINE_WRAPPED_INT_TYPE(long_long, long long, ffi_type_sint64)
91 DEFINE_WRAPPED_INT_TYPE(unsigned_long_long, unsigned long long, ffi_type_uint64)
92 DEFINE_WRAPPED_INT_TYPE(size_t, size_t, CTYPES_FFI_SIZE_T)
93 DEFINE_WRAPPED_INT_TYPE(ssize_t, CTYPES_SSIZE_T, CTYPES_FFI_SSIZE_T)
94 DEFINE_WRAPPED_INT_TYPE(off_t, off_t, CTYPES_FFI_OFF_T)
95 DEFINE_WRAPPED_INT_TYPE(intptr_t, intptr_t, CTYPES_FFI_INTPTR_T)
96 DEFINE_WRAPPED_INT_TYPE(uintptr_t, uintptr_t, CTYPES_FFI_UINTPTR_T)
97 DEFINE_FLOAT_TYPE (float32_t, float, ffi_type_float)
98 DEFINE_FLOAT_TYPE (float64_t, double, ffi_type_double)
99 DEFINE_FLOAT_TYPE (float, float, ffi_type_float)
100 DEFINE_FLOAT_TYPE (double, double, ffi_type_double)
101 DEFINE_CHAR_TYPE (char, char, ffi_type_uint8)
102 DEFINE_CHAR_TYPE (signed_char, signed char, ffi_type_sint8)
103 DEFINE_CHAR_TYPE (unsigned_char, unsigned char, ffi_type_uint8)
104 DEFINE_JSCHAR_TYPE (jschar, jschar, ffi_type_uint16)
106 #undef CTYPES_SSIZE_T
107 #undef CTYPES_FFI_BOOL
108 #undef CTYPES_FFI_LONG
109 #undef CTYPES_FFI_ULONG
110 #undef CTYPES_FFI_SIZE_T
111 #undef CTYPES_FFI_SSIZE_T
112 #undef CTYPES_FFI_INTPTR_T
113 #undef CTYPES_FFI_UINTPTR_T
115 #undef DEFINE_TYPE
116 #undef DEFINE_CHAR_TYPE
117 #undef DEFINE_JSCHAR_TYPE
118 #undef DEFINE_BOOL_TYPE
119 #undef DEFINE_INT_TYPE
120 #undef DEFINE_WRAPPED_INT_TYPE
121 #undef DEFINE_FLOAT_TYPE
