275 lines
13 KiB
C
275 lines
13 KiB
C
#ifndef THIRD_PARTY_GOOGLETEST_GOOGLEMOCK_INCLUDE_GMOCK_PP_H_
|
|
#define THIRD_PARTY_GOOGLETEST_GOOGLEMOCK_INCLUDE_GMOCK_PP_H_
|
|
|
|
// Expands and concatenates the arguments. Constructed macros reevaluate.
|
|
#define GMOCK_PP_CAT(_1, _2) GMOCK_PP_INTERNAL_CAT(_1, _2)
|
|
|
|
// Expands and stringifies the only argument.
|
|
#define GMOCK_PP_STRINGIZE(...) GMOCK_PP_INTERNAL_STRINGIZE(__VA_ARGS__)
|
|
|
|
// Returns empty. Given a variadic number of arguments.
|
|
#define GMOCK_PP_EMPTY(...)
|
|
|
|
// Returns a comma. Given a variadic number of arguments.
|
|
#define GMOCK_PP_COMMA(...) ,
|
|
|
|
// Returns the only argument.
|
|
#define GMOCK_PP_IDENTITY(_1) _1
|
|
|
|
// Evaluates to the number of arguments after expansion.
|
|
//
|
|
// #define PAIR x, y
|
|
//
|
|
// GMOCK_PP_NARG() => 1
|
|
// GMOCK_PP_NARG(x) => 1
|
|
// GMOCK_PP_NARG(x, y) => 2
|
|
// GMOCK_PP_NARG(PAIR) => 2
|
|
//
|
|
// Requires: the number of arguments after expansion is at most 15.
|
|
#define GMOCK_PP_NARG(...) \
|
|
GMOCK_PP_INTERNAL_16TH( \
|
|
(__VA_ARGS__, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1))
|
|
|
|
// Returns 1 if the expansion of arguments has an unprotected comma. Otherwise
|
|
// returns 0. Requires no more than 15 unprotected commas.
|
|
#define GMOCK_PP_HAS_COMMA(...) \
|
|
GMOCK_PP_INTERNAL_16TH( \
|
|
(__VA_ARGS__, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0))
|
|
|
|
// Returns the first argument.
|
|
#define GMOCK_PP_HEAD(...) \
|
|
GMOCK_PP_INTERNAL_HEAD((__VA_ARGS__))
|
|
|
|
// Returns the tail. A variadic list of all arguments minus the first. Requires
|
|
// at least one argument.
|
|
#define GMOCK_PP_TAIL(...) \
|
|
GMOCK_PP_INTERNAL_TAIL((__VA_ARGS__))
|
|
|
|
// Calls CAT(_Macro, NARG(__VA_ARGS__))(__VA_ARGS__)
|
|
#define GMOCK_PP_VARIADIC_CALL(_Macro, ...) \
|
|
GMOCK_PP_IDENTITY( \
|
|
GMOCK_PP_CAT(_Macro, GMOCK_PP_NARG(__VA_ARGS__))(__VA_ARGS__))
|
|
|
|
// If the arguments after expansion have no tokens, evaluates to `1`. Otherwise
|
|
// evaluates to `0`.
|
|
//
|
|
// Requires: * the number of arguments after expansion is at most 15.
|
|
// * If the argument is a macro, it must be able to be called with one
|
|
// argument.
|
|
//
|
|
// Implementation details:
|
|
//
|
|
// There is one case when it generates a compile error: if the argument is macro
|
|
// that cannot be called with one argument.
|
|
//
|
|
// #define M(a, b) // it doesn't matter what it expands to
|
|
//
|
|
// // Expected: expands to `0`.
|
|
// // Actual: compile error.
|
|
// GMOCK_PP_IS_EMPTY(M)
|
|
//
|
|
// There are 4 cases tested:
|
|
//
|
|
// * __VA_ARGS__ possible expansion has no unparen'd commas. Expected 0.
|
|
// * __VA_ARGS__ possible expansion is not enclosed in parenthesis. Expected 0.
|
|
// * __VA_ARGS__ possible expansion is not a macro that ()-evaluates to a comma.
|
|
// Expected 0
|
|
// * __VA_ARGS__ is empty, or has unparen'd commas, or is enclosed in
|
|
// parenthesis, or is a macro that ()-evaluates to comma. Expected 1.
|
|
//
|
|
// We trigger detection on '0001', i.e. on empty.
|
|
#define GMOCK_PP_IS_EMPTY(...) \
|
|
GMOCK_PP_INTERNAL_IS_EMPTY(GMOCK_PP_HAS_COMMA(__VA_ARGS__), \
|
|
GMOCK_PP_HAS_COMMA(GMOCK_PP_COMMA __VA_ARGS__), \
|
|
GMOCK_PP_HAS_COMMA(__VA_ARGS__()), \
|
|
GMOCK_PP_HAS_COMMA(GMOCK_PP_COMMA __VA_ARGS__()))
|
|
|
|
// Evaluates to _Then if _Cond is 1 and _Else if _Cond is 0.
|
|
#define GMOCK_PP_IF(_Cond, _Then, _Else) \
|
|
GMOCK_PP_CAT(GMOCK_PP_INTERNAL_IF_, _Cond)(_Then, _Else)
|
|
|
|
// Evaluates to the number of arguments after expansion. Identifies 'empty' as
|
|
// 0.
|
|
//
|
|
// #define PAIR x, y
|
|
//
|
|
// GMOCK_PP_NARG0() => 0
|
|
// GMOCK_PP_NARG0(x) => 1
|
|
// GMOCK_PP_NARG0(x, y) => 2
|
|
// GMOCK_PP_NARG0(PAIR) => 2
|
|
//
|
|
// Requires: * the number of arguments after expansion is at most 15.
|
|
// * If the argument is a macro, it must be able to be called with one
|
|
// argument.
|
|
#define GMOCK_PP_NARG0(...) \
|
|
GMOCK_PP_IF(GMOCK_PP_IS_EMPTY(__VA_ARGS__), 0, GMOCK_PP_NARG(__VA_ARGS__))
|
|
|
|
// Expands to 1 if the first argument starts with something in parentheses,
|
|
// otherwise to 0.
|
|
#define GMOCK_PP_IS_BEGIN_PARENS(...) \
|
|
GMOCK_PP_HEAD( \
|
|
GMOCK_PP_CAT(GMOCK_PP_INTERNAL_IBP_IS_VARIADIC_R_, \
|
|
GMOCK_PP_INTERNAL_IBP_IS_VARIADIC_C __VA_ARGS__))
|
|
|
|
// Expands to 1 is there is only one argument and it is enclosed in parentheses.
|
|
#define GMOCK_PP_IS_ENCLOSED_PARENS(...) \
|
|
GMOCK_PP_IF(GMOCK_PP_IS_BEGIN_PARENS(__VA_ARGS__), \
|
|
GMOCK_PP_IS_EMPTY(GMOCK_PP_EMPTY __VA_ARGS__), 0)
|
|
|
|
// Remove the parens, requires GMOCK_PP_IS_ENCLOSED_PARENS(args) => 1.
|
|
#define GMOCK_PP_REMOVE_PARENS(...) GMOCK_PP_INTERNAL_REMOVE_PARENS __VA_ARGS__
|
|
|
|
// Expands to _Macro(0, _Data, e1) _Macro(1, _Data, e2) ... _Macro(K -1, _Data,
|
|
// eK) as many of GMOCK_INTERNAL_NARG0 _Tuple.
|
|
// Requires: * |_Macro| can be called with 3 arguments.
|
|
// * |_Tuple| expansion has no more than 15 elements.
|
|
#define GMOCK_PP_FOR_EACH(_Macro, _Data, _Tuple) \
|
|
GMOCK_PP_CAT(GMOCK_PP_INTERNAL_FOR_EACH_IMPL_, GMOCK_PP_NARG0 _Tuple) \
|
|
(0, _Macro, _Data, _Tuple)
|
|
|
|
// Expands to _Macro(0, _Data, ) _Macro(1, _Data, ) ... _Macro(K - 1, _Data, )
|
|
// Empty if _K = 0.
|
|
// Requires: * |_Macro| can be called with 3 arguments.
|
|
// * |_K| literal between 0 and 15
|
|
#define GMOCK_PP_REPEAT(_Macro, _Data, _N) \
|
|
GMOCK_PP_CAT(GMOCK_PP_INTERNAL_FOR_EACH_IMPL_, _N) \
|
|
(0, _Macro, _Data, GMOCK_PP_INTENRAL_EMPTY_TUPLE)
|
|
|
|
// Increments the argument, requires the argument to be between 0 and 15.
|
|
#define GMOCK_PP_INC(_i) GMOCK_PP_CAT(GMOCK_PP_INTERNAL_INC_, _i)
|
|
|
|
// Returns comma if _i != 0. Requires _i to be between 0 and 15.
|
|
#define GMOCK_PP_COMMA_IF(_i) GMOCK_PP_CAT(GMOCK_PP_INTERNAL_COMMA_IF_, _i)
|
|
|
|
// Internal details follow. Do not use any of these symbols outside of this
|
|
// file or we will break your code.
|
|
#define GMOCK_PP_INTENRAL_EMPTY_TUPLE (, , , , , , , , , , , , , , , )
|
|
#define GMOCK_PP_INTERNAL_CAT(_1, _2) _1##_2
|
|
#define GMOCK_PP_INTERNAL_STRINGIZE(...) #__VA_ARGS__
|
|
#define GMOCK_PP_INTERNAL_CAT_5(_1, _2, _3, _4, _5) _1##_2##_3##_4##_5
|
|
#define GMOCK_PP_INTERNAL_IS_EMPTY(_1, _2, _3, _4) \
|
|
GMOCK_PP_HAS_COMMA(GMOCK_PP_INTERNAL_CAT_5(GMOCK_PP_INTERNAL_IS_EMPTY_CASE_, \
|
|
_1, _2, _3, _4))
|
|
#define GMOCK_PP_INTERNAL_IS_EMPTY_CASE_0001 ,
|
|
#define GMOCK_PP_INTERNAL_IF_1(_Then, _Else) _Then
|
|
#define GMOCK_PP_INTERNAL_IF_0(_Then, _Else) _Else
|
|
|
|
// Because of MSVC treating a token with a comma in it as a single token when passed
|
|
// to another macro, we need to force it to evaluate it as multiple tokens. We do that
|
|
// by using a "IDENTITY(MACRO PARENTHESIZED_ARGS)" macro.
|
|
// We define one per possible macro that relies on this behavior.
|
|
// Note "_Args" must be parenthesized.
|
|
#define GMOCK_PP_INTERNAL_INTERNAL_16TH(_1, _2, _3, _4, _5, _6, _7, _8, _9, \
|
|
_10, _11, _12, _13, _14, _15, _16, \
|
|
...) \
|
|
_16
|
|
#define GMOCK_PP_INTERNAL_16TH(_Args) \
|
|
GMOCK_PP_IDENTITY(GMOCK_PP_INTERNAL_INTERNAL_16TH _Args)
|
|
#define GMOCK_PP_INTERNAL_INTERNAL_HEAD(_1, ...) _1
|
|
#define GMOCK_PP_INTERNAL_HEAD(_Args) \
|
|
GMOCK_PP_IDENTITY(GMOCK_PP_INTERNAL_INTERNAL_HEAD _Args)
|
|
#define GMOCK_PP_INTERNAL_INTERNAL_TAIL(_1, ...) __VA_ARGS__
|
|
#define GMOCK_PP_INTERNAL_TAIL(_Args) \
|
|
GMOCK_PP_IDENTITY(GMOCK_PP_INTERNAL_INTERNAL_TAIL _Args)
|
|
|
|
#define GMOCK_PP_INTERNAL_IBP_IS_VARIADIC_C(...) 1 _
|
|
#define GMOCK_PP_INTERNAL_IBP_IS_VARIADIC_R_1 1,
|
|
#define GMOCK_PP_INTERNAL_IBP_IS_VARIADIC_R_GMOCK_PP_INTERNAL_IBP_IS_VARIADIC_C \
|
|
0,
|
|
#define GMOCK_PP_INTERNAL_REMOVE_PARENS(...) __VA_ARGS__
|
|
#define GMOCK_PP_INTERNAL_INC_0 1
|
|
#define GMOCK_PP_INTERNAL_INC_1 2
|
|
#define GMOCK_PP_INTERNAL_INC_2 3
|
|
#define GMOCK_PP_INTERNAL_INC_3 4
|
|
#define GMOCK_PP_INTERNAL_INC_4 5
|
|
#define GMOCK_PP_INTERNAL_INC_5 6
|
|
#define GMOCK_PP_INTERNAL_INC_6 7
|
|
#define GMOCK_PP_INTERNAL_INC_7 8
|
|
#define GMOCK_PP_INTERNAL_INC_8 9
|
|
#define GMOCK_PP_INTERNAL_INC_9 10
|
|
#define GMOCK_PP_INTERNAL_INC_10 11
|
|
#define GMOCK_PP_INTERNAL_INC_11 12
|
|
#define GMOCK_PP_INTERNAL_INC_12 13
|
|
#define GMOCK_PP_INTERNAL_INC_13 14
|
|
#define GMOCK_PP_INTERNAL_INC_14 15
|
|
#define GMOCK_PP_INTERNAL_INC_15 16
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_0
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_1 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_2 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_3 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_4 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_5 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_6 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_7 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_8 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_9 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_10 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_11 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_12 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_13 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_14 ,
|
|
#define GMOCK_PP_INTERNAL_COMMA_IF_15 ,
|
|
#define GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, _element) \
|
|
_Macro(_i, _Data, _element)
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_0(_i, _Macro, _Data, _Tuple)
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_1(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple)
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_2(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_1(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_3(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_2(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_4(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_3(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_5(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_4(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_6(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_5(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_7(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_6(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_8(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_7(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_9(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_8(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_10(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_9(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_11(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_10(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_12(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_11(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_13(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_12(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_14(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_13(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
#define GMOCK_PP_INTERNAL_FOR_EACH_IMPL_15(_i, _Macro, _Data, _Tuple) \
|
|
GMOCK_PP_INTERNAL_CALL_MACRO(_Macro, _i, _Data, GMOCK_PP_HEAD _Tuple) \
|
|
GMOCK_PP_INTERNAL_FOR_EACH_IMPL_14(GMOCK_PP_INC(_i), _Macro, _Data, \
|
|
(GMOCK_PP_TAIL _Tuple))
|
|
|
|
#endif // THIRD_PARTY_GOOGLETEST_GOOGLEMOCK_INCLUDE_GMOCK_INTERNAL_GMOCK_PP_H_
|