js/src/ctypes/typedefs.h@b8a032363ba2 (annotated)
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
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | /** |
| michael@0 | 7 | * This header contains the builtin types available for arguments and return |
| michael@0 | 8 | * values, representing their C counterparts. They are listed inside macros |
| michael@0 | 9 | * that the #includer is expected to #define. Format is: |
| michael@0 | 10 | * |
| michael@0 | 11 | * DEFINE_X_TYPE(typename, ctype, ffitype) |
| michael@0 | 12 | * |
| michael@0 | 13 | * where 'typename' is the name of the type constructor (accessible as |
| michael@0 | 14 | * ctypes.typename), 'ctype' is the corresponding C type declaration (from |
| michael@0 | 15 | * which sizeof(ctype) and templated type conversions will be derived), and |
| michael@0 | 16 | * 'ffitype' is the ffi_type to use. (Special types, such as 'void' and the |
| michael@0 | 17 | * pointer, array, and struct types are handled separately.) |
| michael@0 | 18 | * |
| michael@0 | 19 | * This header lacks a #ifndef wrapper because it is deliberately #included |
| michael@0 | 20 | * multiple times in ctypes/CTypes.h. |
| michael@0 | 21 | */ |
| michael@0 | 22 | |
| michael@0 | 23 | // If we're not breaking the types out, combine them together under one |
| michael@0 | 24 | // DEFINE_TYPE macro. Otherwise, turn off whichever ones we're not using. |
| michael@0 | 25 | #if defined(DEFINE_TYPE) |
| michael@0 | 26 | # define DEFINE_CHAR_TYPE(x, y, z) DEFINE_TYPE(x, y, z) |
| michael@0 | 27 | # define DEFINE_JSCHAR_TYPE(x, y, z) DEFINE_TYPE(x, y, z) |
| michael@0 | 28 | # define DEFINE_BOOL_TYPE(x, y, z) DEFINE_TYPE(x, y, z) |
| michael@0 | 29 | # define DEFINE_INT_TYPE(x, y, z) DEFINE_TYPE(x, y, z) |
| michael@0 | 30 | # define DEFINE_WRAPPED_INT_TYPE(x, y, z) DEFINE_TYPE(x, y, z) |
| michael@0 | 31 | # define DEFINE_FLOAT_TYPE(x, y, z) DEFINE_TYPE(x, y, z) |
| michael@0 | 32 | #else |
| michael@0 | 33 | # ifndef DEFINE_BOOL_TYPE |
| michael@0 | 34 | # define DEFINE_BOOL_TYPE(x, y, z) |
| michael@0 | 35 | # endif |
| michael@0 | 36 | # ifndef DEFINE_CHAR_TYPE |
| michael@0 | 37 | # define DEFINE_CHAR_TYPE(x, y, z) |
| michael@0 | 38 | # endif |
| michael@0 | 39 | # ifndef DEFINE_JSCHAR_TYPE |
| michael@0 | 40 | # define DEFINE_JSCHAR_TYPE(x, y, z) |
| michael@0 | 41 | # endif |
| michael@0 | 42 | # ifndef DEFINE_INT_TYPE |
| michael@0 | 43 | # define DEFINE_INT_TYPE(x, y, z) |
| michael@0 | 44 | # endif |
| michael@0 | 45 | # ifndef DEFINE_WRAPPED_INT_TYPE |
| michael@0 | 46 | # define DEFINE_WRAPPED_INT_TYPE(x, y, z) |
| michael@0 | 47 | # endif |
| michael@0 | 48 | # ifndef DEFINE_FLOAT_TYPE |
| michael@0 | 49 | # define DEFINE_FLOAT_TYPE(x, y, z) |
| michael@0 | 50 | # endif |
| michael@0 | 51 | #endif |
| michael@0 | 52 | |
| michael@0 | 53 | // MSVC doesn't have ssize_t. Help it along a little. |
| michael@0 | 54 | #ifdef HAVE_SSIZE_T |
| michael@0 | 55 | #define CTYPES_SSIZE_T ssize_t |
| michael@0 | 56 | #else |
| michael@0 | 57 | #define CTYPES_SSIZE_T intptr_t |
| michael@0 | 58 | #endif |
| michael@0 | 59 | |
| michael@0 | 60 | // Some #defines to make handling of types whose length varies by platform |
| michael@0 | 61 | // easier. These could be implemented as configure tests, but the expressions |
| michael@0 | 62 | // are all statically resolvable so there's no need. (See CTypes.cpp for the |
| michael@0 | 63 | // appropriate PR_STATIC_ASSERTs; they can't go here since this header is |
| michael@0 | 64 | // used in places where such asserts are illegal.) |
| michael@0 | 65 | #define CTYPES_FFI_BOOL (sizeof(bool) == 1 ? ffi_type_uint8 : ffi_type_uint32) |
| michael@0 | 66 | #define CTYPES_FFI_LONG (sizeof(long) == 4 ? ffi_type_sint32 : ffi_type_sint64) |
| michael@0 | 67 | #define CTYPES_FFI_ULONG (sizeof(long) == 4 ? ffi_type_uint32 : ffi_type_uint64) |
| michael@0 | 68 | #define CTYPES_FFI_SIZE_T (sizeof(size_t) == 4 ? ffi_type_uint32 : ffi_type_uint64) |
| michael@0 | 69 | #define CTYPES_FFI_SSIZE_T (sizeof(size_t) == 4 ? ffi_type_sint32 : ffi_type_sint64) |
| michael@0 | 70 | #define CTYPES_FFI_OFF_T (sizeof(off_t) == 4 ? ffi_type_sint32 : ffi_type_sint64) |
| michael@0 | 71 | #define CTYPES_FFI_INTPTR_T (sizeof(uintptr_t) == 4 ? ffi_type_sint32 : ffi_type_sint64) |
| michael@0 | 72 | #define CTYPES_FFI_UINTPTR_T (sizeof(uintptr_t) == 4 ? ffi_type_uint32 : ffi_type_uint64) |
| michael@0 | 73 | |
| michael@0 | 74 | // The meat. |
| michael@0 | 75 | DEFINE_BOOL_TYPE (bool, bool, CTYPES_FFI_BOOL) |
| michael@0 | 76 | DEFINE_INT_TYPE (int8_t, int8_t, ffi_type_sint8) |
| michael@0 | 77 | DEFINE_INT_TYPE (int16_t, int16_t, ffi_type_sint16) |
| michael@0 | 78 | DEFINE_INT_TYPE (int32_t, int32_t, ffi_type_sint32) |
| michael@0 | 79 | DEFINE_INT_TYPE (uint8_t, uint8_t, ffi_type_uint8) |
| michael@0 | 80 | DEFINE_INT_TYPE (uint16_t, uint16_t, ffi_type_uint16) |
| michael@0 | 81 | DEFINE_INT_TYPE (uint32_t, uint32_t, ffi_type_uint32) |
| michael@0 | 82 | DEFINE_INT_TYPE (short, short, ffi_type_sint16) |
| michael@0 | 83 | DEFINE_INT_TYPE (unsigned_short, unsigned short, ffi_type_uint16) |
| michael@0 | 84 | DEFINE_INT_TYPE (int, int, ffi_type_sint32) |
| michael@0 | 85 | DEFINE_INT_TYPE (unsigned_int, unsigned int, ffi_type_uint32) |
| michael@0 | 86 | DEFINE_WRAPPED_INT_TYPE(int64_t, int64_t, ffi_type_sint64) |
| michael@0 | 87 | DEFINE_WRAPPED_INT_TYPE(uint64_t, uint64_t, ffi_type_uint64) |
| michael@0 | 88 | DEFINE_WRAPPED_INT_TYPE(long, long, CTYPES_FFI_LONG) |
| michael@0 | 89 | DEFINE_WRAPPED_INT_TYPE(unsigned_long, unsigned long, CTYPES_FFI_ULONG) |
| michael@0 | 90 | DEFINE_WRAPPED_INT_TYPE(long_long, long long, ffi_type_sint64) |
| michael@0 | 91 | DEFINE_WRAPPED_INT_TYPE(unsigned_long_long, unsigned long long, ffi_type_uint64) |
| michael@0 | 92 | DEFINE_WRAPPED_INT_TYPE(size_t, size_t, CTYPES_FFI_SIZE_T) |
| michael@0 | 93 | DEFINE_WRAPPED_INT_TYPE(ssize_t, CTYPES_SSIZE_T, CTYPES_FFI_SSIZE_T) |
| michael@0 | 94 | DEFINE_WRAPPED_INT_TYPE(off_t, off_t, CTYPES_FFI_OFF_T) |
| michael@0 | 95 | DEFINE_WRAPPED_INT_TYPE(intptr_t, intptr_t, CTYPES_FFI_INTPTR_T) |
| michael@0 | 96 | DEFINE_WRAPPED_INT_TYPE(uintptr_t, uintptr_t, CTYPES_FFI_UINTPTR_T) |
| michael@0 | 97 | DEFINE_FLOAT_TYPE (float32_t, float, ffi_type_float) |
| michael@0 | 98 | DEFINE_FLOAT_TYPE (float64_t, double, ffi_type_double) |
| michael@0 | 99 | DEFINE_FLOAT_TYPE (float, float, ffi_type_float) |
| michael@0 | 100 | DEFINE_FLOAT_TYPE (double, double, ffi_type_double) |
| michael@0 | 101 | DEFINE_CHAR_TYPE (char, char, ffi_type_uint8) |
| michael@0 | 102 | DEFINE_CHAR_TYPE (signed_char, signed char, ffi_type_sint8) |
| michael@0 | 103 | DEFINE_CHAR_TYPE (unsigned_char, unsigned char, ffi_type_uint8) |
| michael@0 | 104 | DEFINE_JSCHAR_TYPE (jschar, jschar, ffi_type_uint16) |
| michael@0 | 105 | |
| michael@0 | 106 | #undef CTYPES_SSIZE_T |
| michael@0 | 107 | #undef CTYPES_FFI_BOOL |
| michael@0 | 108 | #undef CTYPES_FFI_LONG |
| michael@0 | 109 | #undef CTYPES_FFI_ULONG |
| michael@0 | 110 | #undef CTYPES_FFI_SIZE_T |
| michael@0 | 111 | #undef CTYPES_FFI_SSIZE_T |
| michael@0 | 112 | #undef CTYPES_FFI_INTPTR_T |
| michael@0 | 113 | #undef CTYPES_FFI_UINTPTR_T |
| michael@0 | 114 | |
| michael@0 | 115 | #undef DEFINE_TYPE |
| michael@0 | 116 | #undef DEFINE_CHAR_TYPE |
| michael@0 | 117 | #undef DEFINE_JSCHAR_TYPE |
| michael@0 | 118 | #undef DEFINE_BOOL_TYPE |
| michael@0 | 119 | #undef DEFINE_INT_TYPE |
| michael@0 | 120 | #undef DEFINE_WRAPPED_INT_TYPE |
| michael@0 | 121 | #undef DEFINE_FLOAT_TYPE |
| michael@0 | 122 |
