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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; -*-
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
* This header contains the builtin types available for arguments and return
* values, representing their C counterparts. They are used inside higher-order
* macros that the user must call, providing a macro that will consume the
* arguments provided to it by the higher-order macro. The macros exposed are:
*
* CTYPES_FOR_EACH_BOOL_TYPE(MACRO)
* CTYPES_FOR_EACH_CHAR_TYPE(MACRO)
* CTYPES_FOR_EACH_CHAR16_TYPE(MACRO)
* CTYPES_FOR_EACH_INT_TYPE(MACRO)
* CTYPES_FOR_EACH_WRAPPED_INT_TYPE(MACRO)
* CTYPES_FOR_EACH_FLOAT_TYPE(MACRO)
* CTYPES_FOR_EACH_TYPE(MACRO)
*
* The MACRO name provided to any of these macros will then be repeatedly
* invoked as
*
* MACRO(typename, ctype, ffitype)
*
* where 'typename' is the name of the type constructor (accessible as
* ctypes.typename), 'ctype' is the corresponding C type declaration (from
* which sizeof(ctype) and templated type conversions will be derived), and
* 'ffitype' is the ffi_type to use. (Special types, such as 'void' and the
* pointer, array, and struct types are handled separately.)
*/
#ifndef ctypes_typedefs_h
#define ctypes_typedefs_h
// MSVC doesn't have ssize_t. Help it along a little.
#ifdef HAVE_SSIZE_T
# define CTYPES_SSIZE_T ssize_t
#else
# define CTYPES_SSIZE_T intptr_t
#endif
// Some #defines to make handling of types whose length varies by platform
// easier. These could be implemented as configure tests, but the expressions
// are all statically resolvable so there's no need. (See CTypes.cpp for the
// appropriate PR_STATIC_ASSERTs; they can't go here since this header is
// used in places where such asserts are illegal.)
#define CTYPES_FFI_BOOL (sizeof(bool) == 1 ? ffi_type_uint8 : ffi_type_uint32)
#define CTYPES_FFI_LONG (sizeof(long) == 4 ? ffi_type_sint32 : ffi_type_sint64)
#define CTYPES_FFI_ULONG (sizeof(long) == 4 ? ffi_type_uint32 : ffi_type_uint64)
#define CTYPES_FFI_SIZE_T \
(sizeof(size_t) == 4 ? ffi_type_uint32 : ffi_type_uint64)
#define CTYPES_FFI_SSIZE_T \
(sizeof(size_t) == 4 ? ffi_type_sint32 : ffi_type_sint64)
#define CTYPES_FFI_OFF_T \
(sizeof(off_t) == 4 ? ffi_type_sint32 : ffi_type_sint64)
#define CTYPES_FFI_INTPTR_T \
(sizeof(uintptr_t) == 4 ? ffi_type_sint32 : ffi_type_sint64)
#define CTYPES_FFI_UINTPTR_T \
(sizeof(uintptr_t) == 4 ? ffi_type_uint32 : ffi_type_uint64)
#define CTYPES_FOR_EACH_BOOL_TYPE(MACRO) MACRO(bool, bool, CTYPES_FFI_BOOL)
#define CTYPES_FOR_EACH_INT_TYPE(MACRO) \
MACRO(int8_t, int8_t, ffi_type_sint8) \
MACRO(int16_t, int16_t, ffi_type_sint16) \
MACRO(int32_t, int32_t, ffi_type_sint32) \
MACRO(uint8_t, uint8_t, ffi_type_uint8) \
MACRO(uint16_t, uint16_t, ffi_type_uint16) \
MACRO(uint32_t, uint32_t, ffi_type_uint32) \
MACRO(short, short, ffi_type_sint16) \
MACRO(unsigned_short, unsigned short, ffi_type_uint16) \
MACRO(int, int, ffi_type_sint32) \
MACRO(unsigned_int, unsigned int, ffi_type_uint32)
#define CTYPES_FOR_EACH_WRAPPED_INT_TYPE(MACRO) \
MACRO(int64_t, int64_t, ffi_type_sint64) \
MACRO(uint64_t, uint64_t, ffi_type_uint64) \
MACRO(long, long, CTYPES_FFI_LONG) \
MACRO(unsigned_long, unsigned long, CTYPES_FFI_ULONG) \
MACRO(long_long, long long, ffi_type_sint64) \
MACRO(unsigned_long_long, unsigned long long, ffi_type_uint64) \
MACRO(size_t, size_t, CTYPES_FFI_SIZE_T) \
MACRO(ssize_t, CTYPES_SSIZE_T, CTYPES_FFI_SSIZE_T) \
MACRO(off_t, off_t, CTYPES_FFI_OFF_T) \
MACRO(intptr_t, intptr_t, CTYPES_FFI_INTPTR_T) \
MACRO(uintptr_t, uintptr_t, CTYPES_FFI_UINTPTR_T)
#define CTYPES_FOR_EACH_FLOAT_TYPE(MACRO) \
MACRO(float32_t, float, ffi_type_float) \
MACRO(float64_t, double, ffi_type_double) \
MACRO(float, float, ffi_type_float) \
MACRO(double, double, ffi_type_double)
#define CTYPES_FOR_EACH_CHAR_TYPE(MACRO) \
MACRO(char, char, ffi_type_uint8) \
MACRO(signed_char, signed char, ffi_type_sint8) \
MACRO(unsigned_char, unsigned char, ffi_type_uint8)
#define CTYPES_FOR_EACH_CHAR16_TYPE(MACRO) \
MACRO(char16_t, char16_t, ffi_type_uint16)
#define CTYPES_FOR_EACH_TYPE(MACRO) \
CTYPES_FOR_EACH_BOOL_TYPE(MACRO) \
CTYPES_FOR_EACH_INT_TYPE(MACRO) \
CTYPES_FOR_EACH_WRAPPED_INT_TYPE(MACRO) \
CTYPES_FOR_EACH_FLOAT_TYPE(MACRO) \
CTYPES_FOR_EACH_CHAR_TYPE(MACRO) \
CTYPES_FOR_EACH_CHAR16_TYPE(MACRO)
#endif /* ctypes_typedefs_h */
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