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31 // Google Mock - a framework for writing C++ mock classes.
33 // This file implements some commonly used variadic actions.
35 #ifndef GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MORE_ACTIONS_H_
36 #define GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MORE_ACTIONS_H_
41 #include "gmock/gmock-actions.h"
42 #include "gmock/internal/gmock-port.h"
44 // Include any custom callback actions added by the local installation.
45 #include "gmock/internal/custom/gmock-generated-actions.h"
47 // Sometimes you want to give an action explicit template parameters
48 // that cannot be inferred from its value parameters. ACTION() and
49 // ACTION_P*() don't support that. ACTION_TEMPLATE() remedies that
50 // and can be viewed as an extension to ACTION() and ACTION_P*().
54 // ACTION_TEMPLATE(ActionName,
55 // HAS_m_TEMPLATE_PARAMS(kind1, name1, ..., kind_m, name_m),
56 // AND_n_VALUE_PARAMS(p1, ..., p_n)) { statements; }
58 // defines an action template that takes m explicit template
59 // parameters and n value parameters. name_i is the name of the i-th
60 // template parameter, and kind_i specifies whether it's a typename,
61 // an integral constant, or a template. p_i is the name of the i-th
66 // // DuplicateArg<k, T>(output) converts the k-th argument of the mock
67 // // function to type T and copies it to *output.
68 // ACTION_TEMPLATE(DuplicateArg,
69 // HAS_2_TEMPLATE_PARAMS(int, k, typename, T),
70 // AND_1_VALUE_PARAMS(output)) {
71 // *output = T(::std::get<k>(args));
75 // EXPECT_CALL(mock, Foo(_, _))
76 // .WillOnce(DuplicateArg<1, unsigned char>(&n));
78 // To create an instance of an action template, write:
80 // ActionName<t1, ..., t_m>(v1, ..., v_n)
82 // where the ts are the template arguments and the vs are the value
83 // arguments. The value argument types are inferred by the compiler.
84 // If you want to explicitly specify the value argument types, you can
85 // provide additional template arguments:
87 // ActionName<t1, ..., t_m, u1, ..., u_k>(v1, ..., v_n)
89 // where u_i is the desired type of v_i.
91 // ACTION_TEMPLATE and ACTION/ACTION_P* can be overloaded on the
92 // number of value parameters, but not on the number of template
93 // parameters. Without the restriction, the meaning of the following
96 // OverloadedAction<int, bool>(x);
98 // Are we using a single-template-parameter action where 'bool' refers
99 // to the type of x, or are we using a two-template-parameter action
100 // where the compiler is asked to infer the type of x?
102 // Implementation notes:
104 // GMOCK_INTERNAL_*_HAS_m_TEMPLATE_PARAMS and
105 // GMOCK_INTERNAL_*_AND_n_VALUE_PARAMS are internal macros for
106 // implementing ACTION_TEMPLATE. The main trick we use is to create
107 // new macro invocations when expanding a macro. For example, we have
109 // #define ACTION_TEMPLATE(name, template_params, value_params)
110 // ... GMOCK_INTERNAL_DECL_##template_params ...
112 // which causes ACTION_TEMPLATE(..., HAS_1_TEMPLATE_PARAMS(typename, T), ...)
115 // ... GMOCK_INTERNAL_DECL_HAS_1_TEMPLATE_PARAMS(typename, T) ...
117 // Since GMOCK_INTERNAL_DECL_HAS_1_TEMPLATE_PARAMS is a macro, the
118 // preprocessor will continue to expand it to
120 // ... typename T ...
122 // This technique conforms to the C++ standard and is portable. It
123 // allows us to implement action templates using O(N) code, where N is
124 // the maximum number of template/value parameters supported. Without
125 // using it, we'd have to devote O(N^2) amount of code to implement all
126 // combinations of m and n.
128 // Declares the template parameters.
129 #define GMOCK_INTERNAL_DECL_HAS_1_TEMPLATE_PARAMS(kind0, name0) kind0 name0
130 #define GMOCK_INTERNAL_DECL_HAS_2_TEMPLATE_PARAMS(kind0, name0, kind1, \
131 name1) kind0 name0, kind1 name1
132 #define GMOCK_INTERNAL_DECL_HAS_3_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
133 kind2, name2) kind0 name0, kind1 name1, kind2 name2
134 #define GMOCK_INTERNAL_DECL_HAS_4_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
135 kind2, name2, kind3, name3) kind0 name0, kind1 name1, kind2 name2, \
137 #define GMOCK_INTERNAL_DECL_HAS_5_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
138 kind2, name2, kind3, name3, kind4, name4) kind0 name0, kind1 name1, \
139 kind2 name2, kind3 name3, kind4 name4
140 #define GMOCK_INTERNAL_DECL_HAS_6_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
141 kind2, name2, kind3, name3, kind4, name4, kind5, name5) kind0 name0, \
142 kind1 name1, kind2 name2, kind3 name3, kind4 name4, kind5 name5
143 #define GMOCK_INTERNAL_DECL_HAS_7_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
144 kind2, name2, kind3, name3, kind4, name4, kind5, name5, kind6, \
145 name6) kind0 name0, kind1 name1, kind2 name2, kind3 name3, kind4 name4, \
146 kind5 name5, kind6 name6
147 #define GMOCK_INTERNAL_DECL_HAS_8_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
148 kind2, name2, kind3, name3, kind4, name4, kind5, name5, kind6, name6, \
149 kind7, name7) kind0 name0, kind1 name1, kind2 name2, kind3 name3, \
150 kind4 name4, kind5 name5, kind6 name6, kind7 name7
151 #define GMOCK_INTERNAL_DECL_HAS_9_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
152 kind2, name2, kind3, name3, kind4, name4, kind5, name5, kind6, name6, \
153 kind7, name7, kind8, name8) kind0 name0, kind1 name1, kind2 name2, \
154 kind3 name3, kind4 name4, kind5 name5, kind6 name6, kind7 name7, \
156 #define GMOCK_INTERNAL_DECL_HAS_10_TEMPLATE_PARAMS(kind0, name0, kind1, \
157 name1, kind2, name2, kind3, name3, kind4, name4, kind5, name5, kind6, \
158 name6, kind7, name7, kind8, name8, kind9, name9) kind0 name0, \
159 kind1 name1, kind2 name2, kind3 name3, kind4 name4, kind5 name5, \
160 kind6 name6, kind7 name7, kind8 name8, kind9 name9
162 // Lists the template parameters.
163 #define GMOCK_INTERNAL_LIST_HAS_1_TEMPLATE_PARAMS(kind0, name0) name0
164 #define GMOCK_INTERNAL_LIST_HAS_2_TEMPLATE_PARAMS(kind0, name0, kind1, \
166 #define GMOCK_INTERNAL_LIST_HAS_3_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
167 kind2, name2) name0, name1, name2
168 #define GMOCK_INTERNAL_LIST_HAS_4_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
169 kind2, name2, kind3, name3) name0, name1, name2, name3
170 #define GMOCK_INTERNAL_LIST_HAS_5_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
171 kind2, name2, kind3, name3, kind4, name4) name0, name1, name2, name3, \
173 #define GMOCK_INTERNAL_LIST_HAS_6_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
174 kind2, name2, kind3, name3, kind4, name4, kind5, name5) name0, name1, \
175 name2, name3, name4, name5
176 #define GMOCK_INTERNAL_LIST_HAS_7_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
177 kind2, name2, kind3, name3, kind4, name4, kind5, name5, kind6, \
178 name6) name0, name1, name2, name3, name4, name5, name6
179 #define GMOCK_INTERNAL_LIST_HAS_8_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
180 kind2, name2, kind3, name3, kind4, name4, kind5, name5, kind6, name6, \
181 kind7, name7) name0, name1, name2, name3, name4, name5, name6, name7
182 #define GMOCK_INTERNAL_LIST_HAS_9_TEMPLATE_PARAMS(kind0, name0, kind1, name1, \
183 kind2, name2, kind3, name3, kind4, name4, kind5, name5, kind6, name6, \
184 kind7, name7, kind8, name8) name0, name1, name2, name3, name4, name5, \
186 #define GMOCK_INTERNAL_LIST_HAS_10_TEMPLATE_PARAMS(kind0, name0, kind1, \
187 name1, kind2, name2, kind3, name3, kind4, name4, kind5, name5, kind6, \
188 name6, kind7, name7, kind8, name8, kind9, name9) name0, name1, name2, \
189 name3, name4, name5, name6, name7, name8, name9
191 // Declares the types of value parameters.
192 #define GMOCK_INTERNAL_DECL_TYPE_AND_0_VALUE_PARAMS()
193 #define GMOCK_INTERNAL_DECL_TYPE_AND_1_VALUE_PARAMS(p0) , typename p0##_type
194 #define GMOCK_INTERNAL_DECL_TYPE_AND_2_VALUE_PARAMS(p0, p1) , \
195 typename p0##_type, typename p1##_type
196 #define GMOCK_INTERNAL_DECL_TYPE_AND_3_VALUE_PARAMS(p0, p1, p2) , \
197 typename p0##_type, typename p1##_type, typename p2##_type
198 #define GMOCK_INTERNAL_DECL_TYPE_AND_4_VALUE_PARAMS(p0, p1, p2, p3) , \
199 typename p0##_type, typename p1##_type, typename p2##_type, \
201 #define GMOCK_INTERNAL_DECL_TYPE_AND_5_VALUE_PARAMS(p0, p1, p2, p3, p4) , \
202 typename p0##_type, typename p1##_type, typename p2##_type, \
203 typename p3##_type, typename p4##_type
204 #define GMOCK_INTERNAL_DECL_TYPE_AND_6_VALUE_PARAMS(p0, p1, p2, p3, p4, p5) , \
205 typename p0##_type, typename p1##_type, typename p2##_type, \
206 typename p3##_type, typename p4##_type, typename p5##_type
207 #define GMOCK_INTERNAL_DECL_TYPE_AND_7_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
208 p6) , typename p0##_type, typename p1##_type, typename p2##_type, \
209 typename p3##_type, typename p4##_type, typename p5##_type, \
211 #define GMOCK_INTERNAL_DECL_TYPE_AND_8_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
212 p6, p7) , typename p0##_type, typename p1##_type, typename p2##_type, \
213 typename p3##_type, typename p4##_type, typename p5##_type, \
214 typename p6##_type, typename p7##_type
215 #define GMOCK_INTERNAL_DECL_TYPE_AND_9_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
216 p6, p7, p8) , typename p0##_type, typename p1##_type, typename p2##_type, \
217 typename p3##_type, typename p4##_type, typename p5##_type, \
218 typename p6##_type, typename p7##_type, typename p8##_type
219 #define GMOCK_INTERNAL_DECL_TYPE_AND_10_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
220 p6, p7, p8, p9) , typename p0##_type, typename p1##_type, \
221 typename p2##_type, typename p3##_type, typename p4##_type, \
222 typename p5##_type, typename p6##_type, typename p7##_type, \
223 typename p8##_type, typename p9##_type
225 // Initializes the value parameters.
226 #define GMOCK_INTERNAL_INIT_AND_0_VALUE_PARAMS()\
228 #define GMOCK_INTERNAL_INIT_AND_1_VALUE_PARAMS(p0)\
229 (p0##_type gmock_p0) : p0(::std::move(gmock_p0))
230 #define GMOCK_INTERNAL_INIT_AND_2_VALUE_PARAMS(p0, p1)\
231 (p0##_type gmock_p0, p1##_type gmock_p1) : p0(::std::move(gmock_p0)), \
232 p1(::std::move(gmock_p1))
233 #define GMOCK_INTERNAL_INIT_AND_3_VALUE_PARAMS(p0, p1, p2)\
234 (p0##_type gmock_p0, p1##_type gmock_p1, \
235 p2##_type gmock_p2) : p0(::std::move(gmock_p0)), \
236 p1(::std::move(gmock_p1)), p2(::std::move(gmock_p2))
237 #define GMOCK_INTERNAL_INIT_AND_4_VALUE_PARAMS(p0, p1, p2, p3)\
238 (p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \
239 p3##_type gmock_p3) : p0(::std::move(gmock_p0)), \
240 p1(::std::move(gmock_p1)), p2(::std::move(gmock_p2)), \
241 p3(::std::move(gmock_p3))
242 #define GMOCK_INTERNAL_INIT_AND_5_VALUE_PARAMS(p0, p1, p2, p3, p4)\
243 (p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \
244 p3##_type gmock_p3, p4##_type gmock_p4) : p0(::std::move(gmock_p0)), \
245 p1(::std::move(gmock_p1)), p2(::std::move(gmock_p2)), \
246 p3(::std::move(gmock_p3)), p4(::std::move(gmock_p4))
247 #define GMOCK_INTERNAL_INIT_AND_6_VALUE_PARAMS(p0, p1, p2, p3, p4, p5)\
248 (p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \
249 p3##_type gmock_p3, p4##_type gmock_p4, \
250 p5##_type gmock_p5) : p0(::std::move(gmock_p0)), \
251 p1(::std::move(gmock_p1)), p2(::std::move(gmock_p2)), \
252 p3(::std::move(gmock_p3)), p4(::std::move(gmock_p4)), \
253 p5(::std::move(gmock_p5))
254 #define GMOCK_INTERNAL_INIT_AND_7_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6)\
255 (p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \
256 p3##_type gmock_p3, p4##_type gmock_p4, p5##_type gmock_p5, \
257 p6##_type gmock_p6) : p0(::std::move(gmock_p0)), \
258 p1(::std::move(gmock_p1)), p2(::std::move(gmock_p2)), \
259 p3(::std::move(gmock_p3)), p4(::std::move(gmock_p4)), \
260 p5(::std::move(gmock_p5)), p6(::std::move(gmock_p6))
261 #define GMOCK_INTERNAL_INIT_AND_8_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, p7)\
262 (p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \
263 p3##_type gmock_p3, p4##_type gmock_p4, p5##_type gmock_p5, \
264 p6##_type gmock_p6, p7##_type gmock_p7) : p0(::std::move(gmock_p0)), \
265 p1(::std::move(gmock_p1)), p2(::std::move(gmock_p2)), \
266 p3(::std::move(gmock_p3)), p4(::std::move(gmock_p4)), \
267 p5(::std::move(gmock_p5)), p6(::std::move(gmock_p6)), \
268 p7(::std::move(gmock_p7))
269 #define GMOCK_INTERNAL_INIT_AND_9_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
271 (p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \
272 p3##_type gmock_p3, p4##_type gmock_p4, p5##_type gmock_p5, \
273 p6##_type gmock_p6, p7##_type gmock_p7, \
274 p8##_type gmock_p8) : p0(::std::move(gmock_p0)), \
275 p1(::std::move(gmock_p1)), p2(::std::move(gmock_p2)), \
276 p3(::std::move(gmock_p3)), p4(::std::move(gmock_p4)), \
277 p5(::std::move(gmock_p5)), p6(::std::move(gmock_p6)), \
278 p7(::std::move(gmock_p7)), p8(::std::move(gmock_p8))
279 #define GMOCK_INTERNAL_INIT_AND_10_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
281 (p0##_type gmock_p0, p1##_type gmock_p1, p2##_type gmock_p2, \
282 p3##_type gmock_p3, p4##_type gmock_p4, p5##_type gmock_p5, \
283 p6##_type gmock_p6, p7##_type gmock_p7, p8##_type gmock_p8, \
284 p9##_type gmock_p9) : p0(::std::move(gmock_p0)), \
285 p1(::std::move(gmock_p1)), p2(::std::move(gmock_p2)), \
286 p3(::std::move(gmock_p3)), p4(::std::move(gmock_p4)), \
287 p5(::std::move(gmock_p5)), p6(::std::move(gmock_p6)), \
288 p7(::std::move(gmock_p7)), p8(::std::move(gmock_p8)), \
289 p9(::std::move(gmock_p9))
291 // Defines the copy constructor
292 #define GMOCK_INTERNAL_DEFN_COPY_AND_0_VALUE_PARAMS() \
293 {} // Avoid https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82134
294 #define GMOCK_INTERNAL_DEFN_COPY_AND_1_VALUE_PARAMS(...) = default;
295 #define GMOCK_INTERNAL_DEFN_COPY_AND_2_VALUE_PARAMS(...) = default;
296 #define GMOCK_INTERNAL_DEFN_COPY_AND_3_VALUE_PARAMS(...) = default;
297 #define GMOCK_INTERNAL_DEFN_COPY_AND_4_VALUE_PARAMS(...) = default;
298 #define GMOCK_INTERNAL_DEFN_COPY_AND_5_VALUE_PARAMS(...) = default;
299 #define GMOCK_INTERNAL_DEFN_COPY_AND_6_VALUE_PARAMS(...) = default;
300 #define GMOCK_INTERNAL_DEFN_COPY_AND_7_VALUE_PARAMS(...) = default;
301 #define GMOCK_INTERNAL_DEFN_COPY_AND_8_VALUE_PARAMS(...) = default;
302 #define GMOCK_INTERNAL_DEFN_COPY_AND_9_VALUE_PARAMS(...) = default;
303 #define GMOCK_INTERNAL_DEFN_COPY_AND_10_VALUE_PARAMS(...) = default;
305 // Declares the fields for storing the value parameters.
306 #define GMOCK_INTERNAL_DEFN_AND_0_VALUE_PARAMS()
307 #define GMOCK_INTERNAL_DEFN_AND_1_VALUE_PARAMS(p0) p0##_type p0;
308 #define GMOCK_INTERNAL_DEFN_AND_2_VALUE_PARAMS(p0, p1) p0##_type p0; \
310 #define GMOCK_INTERNAL_DEFN_AND_3_VALUE_PARAMS(p0, p1, p2) p0##_type p0; \
311 p1##_type p1; p2##_type p2;
312 #define GMOCK_INTERNAL_DEFN_AND_4_VALUE_PARAMS(p0, p1, p2, p3) p0##_type p0; \
313 p1##_type p1; p2##_type p2; p3##_type p3;
314 #define GMOCK_INTERNAL_DEFN_AND_5_VALUE_PARAMS(p0, p1, p2, p3, \
315 p4) p0##_type p0; p1##_type p1; p2##_type p2; p3##_type p3; p4##_type p4;
316 #define GMOCK_INTERNAL_DEFN_AND_6_VALUE_PARAMS(p0, p1, p2, p3, p4, \
317 p5) p0##_type p0; p1##_type p1; p2##_type p2; p3##_type p3; p4##_type p4; \
319 #define GMOCK_INTERNAL_DEFN_AND_7_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
320 p6) p0##_type p0; p1##_type p1; p2##_type p2; p3##_type p3; p4##_type p4; \
321 p5##_type p5; p6##_type p6;
322 #define GMOCK_INTERNAL_DEFN_AND_8_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
323 p7) p0##_type p0; p1##_type p1; p2##_type p2; p3##_type p3; p4##_type p4; \
324 p5##_type p5; p6##_type p6; p7##_type p7;
325 #define GMOCK_INTERNAL_DEFN_AND_9_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
326 p7, p8) p0##_type p0; p1##_type p1; p2##_type p2; p3##_type p3; \
327 p4##_type p4; p5##_type p5; p6##_type p6; p7##_type p7; p8##_type p8;
328 #define GMOCK_INTERNAL_DEFN_AND_10_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
329 p7, p8, p9) p0##_type p0; p1##_type p1; p2##_type p2; p3##_type p3; \
330 p4##_type p4; p5##_type p5; p6##_type p6; p7##_type p7; p8##_type p8; \
333 // Lists the value parameters.
334 #define GMOCK_INTERNAL_LIST_AND_0_VALUE_PARAMS()
335 #define GMOCK_INTERNAL_LIST_AND_1_VALUE_PARAMS(p0) p0
336 #define GMOCK_INTERNAL_LIST_AND_2_VALUE_PARAMS(p0, p1) p0, p1
337 #define GMOCK_INTERNAL_LIST_AND_3_VALUE_PARAMS(p0, p1, p2) p0, p1, p2
338 #define GMOCK_INTERNAL_LIST_AND_4_VALUE_PARAMS(p0, p1, p2, p3) p0, p1, p2, p3
339 #define GMOCK_INTERNAL_LIST_AND_5_VALUE_PARAMS(p0, p1, p2, p3, p4) p0, p1, \
341 #define GMOCK_INTERNAL_LIST_AND_6_VALUE_PARAMS(p0, p1, p2, p3, p4, p5) p0, \
343 #define GMOCK_INTERNAL_LIST_AND_7_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
344 p6) p0, p1, p2, p3, p4, p5, p6
345 #define GMOCK_INTERNAL_LIST_AND_8_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
346 p7) p0, p1, p2, p3, p4, p5, p6, p7
347 #define GMOCK_INTERNAL_LIST_AND_9_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
348 p7, p8) p0, p1, p2, p3, p4, p5, p6, p7, p8
349 #define GMOCK_INTERNAL_LIST_AND_10_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
350 p7, p8, p9) p0, p1, p2, p3, p4, p5, p6, p7, p8, p9
352 // Lists the value parameter types.
353 #define GMOCK_INTERNAL_LIST_TYPE_AND_0_VALUE_PARAMS()
354 #define GMOCK_INTERNAL_LIST_TYPE_AND_1_VALUE_PARAMS(p0) , p0##_type
355 #define GMOCK_INTERNAL_LIST_TYPE_AND_2_VALUE_PARAMS(p0, p1) , p0##_type, \
357 #define GMOCK_INTERNAL_LIST_TYPE_AND_3_VALUE_PARAMS(p0, p1, p2) , p0##_type, \
359 #define GMOCK_INTERNAL_LIST_TYPE_AND_4_VALUE_PARAMS(p0, p1, p2, p3) , \
360 p0##_type, p1##_type, p2##_type, p3##_type
361 #define GMOCK_INTERNAL_LIST_TYPE_AND_5_VALUE_PARAMS(p0, p1, p2, p3, p4) , \
362 p0##_type, p1##_type, p2##_type, p3##_type, p4##_type
363 #define GMOCK_INTERNAL_LIST_TYPE_AND_6_VALUE_PARAMS(p0, p1, p2, p3, p4, p5) , \
364 p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, p5##_type
365 #define GMOCK_INTERNAL_LIST_TYPE_AND_7_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
366 p6) , p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, p5##_type, \
368 #define GMOCK_INTERNAL_LIST_TYPE_AND_8_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
369 p6, p7) , p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, \
370 p5##_type, p6##_type, p7##_type
371 #define GMOCK_INTERNAL_LIST_TYPE_AND_9_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
372 p6, p7, p8) , p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, \
373 p5##_type, p6##_type, p7##_type, p8##_type
374 #define GMOCK_INTERNAL_LIST_TYPE_AND_10_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
375 p6, p7, p8, p9) , p0##_type, p1##_type, p2##_type, p3##_type, p4##_type, \
376 p5##_type, p6##_type, p7##_type, p8##_type, p9##_type
378 // Declares the value parameters.
379 #define GMOCK_INTERNAL_DECL_AND_0_VALUE_PARAMS()
380 #define GMOCK_INTERNAL_DECL_AND_1_VALUE_PARAMS(p0) p0##_type p0
381 #define GMOCK_INTERNAL_DECL_AND_2_VALUE_PARAMS(p0, p1) p0##_type p0, \
383 #define GMOCK_INTERNAL_DECL_AND_3_VALUE_PARAMS(p0, p1, p2) p0##_type p0, \
384 p1##_type p1, p2##_type p2
385 #define GMOCK_INTERNAL_DECL_AND_4_VALUE_PARAMS(p0, p1, p2, p3) p0##_type p0, \
386 p1##_type p1, p2##_type p2, p3##_type p3
387 #define GMOCK_INTERNAL_DECL_AND_5_VALUE_PARAMS(p0, p1, p2, p3, \
388 p4) p0##_type p0, p1##_type p1, p2##_type p2, p3##_type p3, p4##_type p4
389 #define GMOCK_INTERNAL_DECL_AND_6_VALUE_PARAMS(p0, p1, p2, p3, p4, \
390 p5) p0##_type p0, p1##_type p1, p2##_type p2, p3##_type p3, p4##_type p4, \
392 #define GMOCK_INTERNAL_DECL_AND_7_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, \
393 p6) p0##_type p0, p1##_type p1, p2##_type p2, p3##_type p3, p4##_type p4, \
394 p5##_type p5, p6##_type p6
395 #define GMOCK_INTERNAL_DECL_AND_8_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
396 p7) p0##_type p0, p1##_type p1, p2##_type p2, p3##_type p3, p4##_type p4, \
397 p5##_type p5, p6##_type p6, p7##_type p7
398 #define GMOCK_INTERNAL_DECL_AND_9_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
399 p7, p8) p0##_type p0, p1##_type p1, p2##_type p2, p3##_type p3, \
400 p4##_type p4, p5##_type p5, p6##_type p6, p7##_type p7, p8##_type p8
401 #define GMOCK_INTERNAL_DECL_AND_10_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
402 p7, p8, p9) p0##_type p0, p1##_type p1, p2##_type p2, p3##_type p3, \
403 p4##_type p4, p5##_type p5, p6##_type p6, p7##_type p7, p8##_type p8, \
406 // The suffix of the class template implementing the action template.
407 #define GMOCK_INTERNAL_COUNT_AND_0_VALUE_PARAMS()
408 #define GMOCK_INTERNAL_COUNT_AND_1_VALUE_PARAMS(p0) P
409 #define GMOCK_INTERNAL_COUNT_AND_2_VALUE_PARAMS(p0, p1) P2
410 #define GMOCK_INTERNAL_COUNT_AND_3_VALUE_PARAMS(p0, p1, p2) P3
411 #define GMOCK_INTERNAL_COUNT_AND_4_VALUE_PARAMS(p0, p1, p2, p3) P4
412 #define GMOCK_INTERNAL_COUNT_AND_5_VALUE_PARAMS(p0, p1, p2, p3, p4) P5
413 #define GMOCK_INTERNAL_COUNT_AND_6_VALUE_PARAMS(p0, p1, p2, p3, p4, p5) P6
414 #define GMOCK_INTERNAL_COUNT_AND_7_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6) P7
415 #define GMOCK_INTERNAL_COUNT_AND_8_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
417 #define GMOCK_INTERNAL_COUNT_AND_9_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
419 #define GMOCK_INTERNAL_COUNT_AND_10_VALUE_PARAMS(p0, p1, p2, p3, p4, p5, p6, \
422 // The name of the class template implementing the action template.
423 #define GMOCK_ACTION_CLASS_(name, value_params)\
424 GTEST_CONCAT_TOKEN_(name##Action, GMOCK_INTERNAL_COUNT_##value_params)
426 #define ACTION_TEMPLATE(name, template_params, value_params) \
427 template <GMOCK_INTERNAL_DECL_##template_params \
428 GMOCK_INTERNAL_DECL_TYPE_##value_params> \
429 class GMOCK_ACTION_CLASS_(name, value_params) { \
431 explicit GMOCK_ACTION_CLASS_(name, value_params)( \
432 GMOCK_INTERNAL_DECL_##value_params) \
433 GMOCK_PP_IF(GMOCK_PP_IS_EMPTY(GMOCK_INTERNAL_COUNT_##value_params), \
435 : impl_(std::make_shared<gmock_Impl>( \
436 GMOCK_INTERNAL_LIST_##value_params)) { }) \
437 GMOCK_ACTION_CLASS_(name, value_params)( \
438 const GMOCK_ACTION_CLASS_(name, value_params)&) noexcept \
439 GMOCK_INTERNAL_DEFN_COPY_##value_params \
440 GMOCK_ACTION_CLASS_(name, value_params)( \
441 GMOCK_ACTION_CLASS_(name, value_params)&&) noexcept \
442 GMOCK_INTERNAL_DEFN_COPY_##value_params \
443 template <typename F> \
444 operator ::testing::Action<F>() const { \
445 return GMOCK_PP_IF( \
446 GMOCK_PP_IS_EMPTY(GMOCK_INTERNAL_COUNT_##value_params), \
447 (::testing::internal::MakeAction<F, gmock_Impl>()), \
448 (::testing::internal::MakeAction<F>(impl_))); \
453 explicit gmock_Impl GMOCK_INTERNAL_INIT_##value_params {} \
454 template <typename function_type, typename return_type, \
455 typename args_type, GMOCK_ACTION_TEMPLATE_ARGS_NAMES_> \
456 return_type gmock_PerformImpl(GMOCK_ACTION_ARG_TYPES_AND_NAMES_) const; \
457 GMOCK_INTERNAL_DEFN_##value_params \
459 GMOCK_PP_IF(GMOCK_PP_IS_EMPTY(GMOCK_INTERNAL_COUNT_##value_params), \
460 , std::shared_ptr<const gmock_Impl> impl_;) \
462 template <GMOCK_INTERNAL_DECL_##template_params \
463 GMOCK_INTERNAL_DECL_TYPE_##value_params> \
464 GMOCK_ACTION_CLASS_(name, value_params)< \
465 GMOCK_INTERNAL_LIST_##template_params \
466 GMOCK_INTERNAL_LIST_TYPE_##value_params> name( \
467 GMOCK_INTERNAL_DECL_##value_params) GTEST_MUST_USE_RESULT_; \
468 template <GMOCK_INTERNAL_DECL_##template_params \
469 GMOCK_INTERNAL_DECL_TYPE_##value_params> \
470 inline GMOCK_ACTION_CLASS_(name, value_params)< \
471 GMOCK_INTERNAL_LIST_##template_params \
472 GMOCK_INTERNAL_LIST_TYPE_##value_params> name( \
473 GMOCK_INTERNAL_DECL_##value_params) { \
474 return GMOCK_ACTION_CLASS_(name, value_params)< \
475 GMOCK_INTERNAL_LIST_##template_params \
476 GMOCK_INTERNAL_LIST_TYPE_##value_params>( \
477 GMOCK_INTERNAL_LIST_##value_params); \
479 template <GMOCK_INTERNAL_DECL_##template_params \
480 GMOCK_INTERNAL_DECL_TYPE_##value_params> \
481 template <typename function_type, typename return_type, typename args_type, \
482 GMOCK_ACTION_TEMPLATE_ARGS_NAMES_> \
483 return_type GMOCK_ACTION_CLASS_(name, value_params)< \
484 GMOCK_INTERNAL_LIST_##template_params \
485 GMOCK_INTERNAL_LIST_TYPE_##value_params>::gmock_Impl::gmock_PerformImpl( \
486 GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
490 // The ACTION*() macros trigger warning C4100 (unreferenced formal
491 // parameter) in MSVC with -W4. Unfortunately they cannot be fixed in
492 // the macro definition, as the warnings are generated when the macro
493 // is expanded and macro expansion cannot contain #pragma. Therefore
494 // we suppress them here.
496 # pragma warning(push)
497 # pragma warning(disable:4100)
502 // internal::InvokeArgument - a helper for InvokeArgument action.
503 // The basic overloads are provided here for generic functors.
504 // Overloads for other custom-callables are provided in the
505 // internal/custom/gmock-generated-actions.h header.
506 template <typename F, typename... Args>
507 auto InvokeArgument(F f, Args... args) -> decltype(f(args...)) {
511 template <std::size_t index, typename... Params>
512 struct InvokeArgumentAction {
513 template <typename... Args>
514 auto operator()(Args&&... args) const -> decltype(internal::InvokeArgument(
515 std::get<index>(std::forward_as_tuple(std::forward<Args>(args)...)),
516 std::declval<const Params&>()...)) {
517 internal::FlatTuple<Args&&...> args_tuple(FlatTupleConstructTag{},
518 std::forward<Args>(args)...);
519 return params.Apply([&](const Params&... unpacked_params) {
520 auto&& callable = args_tuple.template Get<index>();
521 return internal::InvokeArgument(
522 std::forward<decltype(callable)>(callable), unpacked_params...);
526 internal::FlatTuple<Params...> params;
529 } // namespace internal
531 // The InvokeArgument<N>(a1, a2, ..., a_k) action invokes the N-th
532 // (0-based) argument, which must be a k-ary callable, of the mock
533 // function, with arguments a1, a2, ..., a_k.
537 // 1. The arguments are passed by value by default. If you need to
538 // pass an argument by reference, wrap it inside std::ref(). For
541 // InvokeArgument<1>(5, string("Hello"), std::ref(foo))
543 // passes 5 and string("Hello") by value, and passes foo by
546 // 2. If the callable takes an argument by reference but std::ref() is
547 // not used, it will receive the reference to a copy of the value,
548 // instead of the original value. For example, when the 0-th
549 // argument of the mock function takes a const string&, the action
551 // InvokeArgument<0>(string("Hello"))
553 // makes a copy of the temporary string("Hello") object and passes a
554 // reference of the copy, instead of the original temporary object,
555 // to the callable. This makes it easy for a user to define an
556 // InvokeArgument action from temporary values and have it performed
558 template <std::size_t index, typename... Params>
559 internal::InvokeArgumentAction<index, typename std::decay<Params>::type...>
560 InvokeArgument(Params&&... params) {
561 return {internal::FlatTuple<typename std::decay<Params>::type...>(
562 internal::FlatTupleConstructTag{}, std::forward<Params>(params)...)};
566 # pragma warning(pop)
569 } // namespace testing
571 #endif // GOOGLEMOCK_INCLUDE_GMOCK_GMOCK_MORE_ACTIONS_H_