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      1 $$ -*- mode: c++; -*-
      2 $$ This is a Pump source file.  Please use Pump to convert it to
      3 $$ gmock-generated-actions.h.
      4 $$
      5 $var n = 10  $$ The maximum arity we support.
      6 $$}} This meta comment fixes auto-indentation in editors.
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     35 //
     36 // Author: wan (a] google.com (Zhanyong Wan)
     37 
     38 // Google Mock - a framework for writing C++ mock classes.
     39 //
     40 // This file implements some commonly used variadic actions.
     41 
     42 #ifndef GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_ACTIONS_H_
     43 #define GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_ACTIONS_H_
     44 
     45 #include "gmock/gmock-actions.h"
     46 #include "gmock/internal/gmock-port.h"
     47 
     48 namespace testing {
     49 namespace internal {
     50 
     51 // InvokeHelper<F> knows how to unpack an N-tuple and invoke an N-ary
     52 // function or method with the unpacked values, where F is a function
     53 // type that takes N arguments.
     54 template <typename Result, typename ArgumentTuple>
     55 class InvokeHelper;
     56 
     57 
     58 $range i 0..n
     59 $for i [[
     60 $range j 1..i
     61 $var types = [[$for j [[, typename A$j]]]]
     62 $var as = [[$for j, [[A$j]]]]
     63 $var args = [[$if i==0 [[]] $else [[ args]]]]
     64 $var gets = [[$for j, [[get<$(j - 1)>(args)]]]]
     65 template <typename R$types>
     66 class InvokeHelper<R, ::testing::tuple<$as> > {
     67  public:
     68   template <typename Function>
     69   static R Invoke(Function function, const ::testing::tuple<$as>&$args) {
     70            return function($gets);
     71   }
     72 
     73   template <class Class, typename MethodPtr>
     74   static R InvokeMethod(Class* obj_ptr,
     75                         MethodPtr method_ptr,
     76                         const ::testing::tuple<$as>&$args) {
     77            return (obj_ptr->*method_ptr)($gets);
     78   }
     79 };
     80 
     81 
     82 ]]
     83 // An INTERNAL macro for extracting the type of a tuple field.  It's
     84 // subject to change without notice - DO NOT USE IN USER CODE!
     85 #define GMOCK_FIELD_(Tuple, N) \
     86     typename ::testing::tuple_element<N, Tuple>::type
     87 
     88 $range i 1..n
     89 
     90 // SelectArgs<Result, ArgumentTuple, k1, k2, ..., k_n>::type is the
     91 // type of an n-ary function whose i-th (1-based) argument type is the
     92 // k{i}-th (0-based) field of ArgumentTuple, which must be a tuple
     93 // type, and whose return type is Result.  For example,
     94 //   SelectArgs<int, ::testing::tuple<bool, char, double, long>, 0, 3>::type
     95 // is int(bool, long).
     96 //
     97 // SelectArgs<Result, ArgumentTuple, k1, k2, ..., k_n>::Select(args)
     98 // returns the selected fields (k1, k2, ..., k_n) of args as a tuple.
     99 // For example,
    100 //   SelectArgs<int, tuple<bool, char, double>, 2, 0>::Select(
    101 //       ::testing::make_tuple(true, 'a', 2.5))
    102 // returns tuple (2.5, true).
    103 //
    104 // The numbers in list k1, k2, ..., k_n must be >= 0, where n can be
    105 // in the range [0, $n].  Duplicates are allowed and they don't have
    106 // to be in an ascending or descending order.
    107 
    108 template <typename Result, typename ArgumentTuple, $for i, [[int k$i]]>
    109 class SelectArgs {
    110  public:
    111   typedef Result type($for i, [[GMOCK_FIELD_(ArgumentTuple, k$i)]]);
    112   typedef typename Function<type>::ArgumentTuple SelectedArgs;
    113   static SelectedArgs Select(const ArgumentTuple& args) {
    114     return SelectedArgs($for i, [[get<k$i>(args)]]);
    115   }
    116 };
    117 
    118 
    119 $for i [[
    120 $range j 1..n
    121 $range j1 1..i-1
    122 template <typename Result, typename ArgumentTuple$for j1[[, int k$j1]]>
    123 class SelectArgs<Result, ArgumentTuple,
    124                  $for j, [[$if j <= i-1 [[k$j]] $else [[-1]]]]> {
    125  public:
    126   typedef Result type($for j1, [[GMOCK_FIELD_(ArgumentTuple, k$j1)]]);
    127   typedef typename Function<type>::ArgumentTuple SelectedArgs;
    128   static SelectedArgs Select(const ArgumentTuple& [[]]
    129 $if i == 1 [[/* args */]] $else [[args]]) {
    130     return SelectedArgs($for j1, [[get<k$j1>(args)]]);
    131   }
    132 };
    133 
    134 
    135 ]]
    136 #undef GMOCK_FIELD_
    137 
    138 $var ks = [[$for i, [[k$i]]]]
    139 
    140 // Implements the WithArgs action.
    141 template <typename InnerAction, $for i, [[int k$i = -1]]>
    142 class WithArgsAction {
    143  public:
    144   explicit WithArgsAction(const InnerAction& action) : action_(action) {}
    145 
    146   template <typename F>
    147   operator Action<F>() const { return MakeAction(new Impl<F>(action_)); }
    148 
    149  private:
    150   template <typename F>
    151   class Impl : public ActionInterface<F> {
    152    public:
    153     typedef typename Function<F>::Result Result;
    154     typedef typename Function<F>::ArgumentTuple ArgumentTuple;
    155 
    156     explicit Impl(const InnerAction& action) : action_(action) {}
    157 
    158     virtual Result Perform(const ArgumentTuple& args) {
    159       return action_.Perform(SelectArgs<Result, ArgumentTuple, $ks>::Select(args));
    160     }
    161 
    162    private:
    163     typedef typename SelectArgs<Result, ArgumentTuple,
    164         $ks>::type InnerFunctionType;
    165 
    166     Action<InnerFunctionType> action_;
    167   };
    168 
    169   const InnerAction action_;
    170 
    171   GTEST_DISALLOW_ASSIGN_(WithArgsAction);
    172 };
    173 
    174 // A macro from the ACTION* family (defined later in this file)
    175 // defines an action that can be used in a mock function.  Typically,
    176 // these actions only care about a subset of the arguments of the mock
    177 // function.  For example, if such an action only uses the second
    178 // argument, it can be used in any mock function that takes >= 2
    179 // arguments where the type of the second argument is compatible.
    180 //
    181 // Therefore, the action implementation must be prepared to take more
    182 // arguments than it needs.  The ExcessiveArg type is used to
    183 // represent those excessive arguments.  In order to keep the compiler
    184 // error messages tractable, we define it in the testing namespace
    185 // instead of testing::internal.  However, this is an INTERNAL TYPE
    186 // and subject to change without notice, so a user MUST NOT USE THIS
    187 // TYPE DIRECTLY.
    188 struct ExcessiveArg {};
    189 
    190 // A helper class needed for implementing the ACTION* macros.
    191 template <typename Result, class Impl>
    192 class ActionHelper {
    193  public:
    194 $range i 0..n
    195 $for i
    196 
    197 [[
    198 $var template = [[$if i==0 [[]] $else [[
    199 $range j 0..i-1
    200   template <$for j, [[typename A$j]]>
    201 ]]]]
    202 $range j 0..i-1
    203 $var As = [[$for j, [[A$j]]]]
    204 $var as = [[$for j, [[get<$j>(args)]]]]
    205 $range k 1..n-i
    206 $var eas = [[$for k, [[ExcessiveArg()]]]]
    207 $var arg_list = [[$if (i==0) | (i==n) [[$as$eas]] $else [[$as, $eas]]]]
    208 $template
    209   static Result Perform(Impl* impl, const ::testing::tuple<$As>& args) {
    210     return impl->template gmock_PerformImpl<$As>(args, $arg_list);
    211   }
    212 
    213 ]]
    214 };
    215 
    216 }  // namespace internal
    217 
    218 // Various overloads for Invoke().
    219 
    220 // WithArgs<N1, N2, ..., Nk>(an_action) creates an action that passes
    221 // the selected arguments of the mock function to an_action and
    222 // performs it.  It serves as an adaptor between actions with
    223 // different argument lists.  C++ doesn't support default arguments for
    224 // function templates, so we have to overload it.
    225 
    226 $range i 1..n
    227 $for i [[
    228 $range j 1..i
    229 template <$for j [[int k$j, ]]typename InnerAction>
    230 inline internal::WithArgsAction<InnerAction$for j [[, k$j]]>
    231 WithArgs(const InnerAction& action) {
    232   return internal::WithArgsAction<InnerAction$for j [[, k$j]]>(action);
    233 }
    234 
    235 
    236 ]]
    237 // Creates an action that does actions a1, a2, ..., sequentially in
    238 // each invocation.
    239 $range i 2..n
    240 $for i [[
    241 $range j 2..i
    242 $var types = [[$for j, [[typename Action$j]]]]
    243 $var Aas = [[$for j [[, Action$j a$j]]]]
    244 
    245 template <typename Action1, $types>
    246 $range k 1..i-1
    247 
    248 inline $for k [[internal::DoBothAction<Action$k, ]]Action$i$for k  [[>]]
    249 
    250 DoAll(Action1 a1$Aas) {
    251 $if i==2 [[
    252 
    253   return internal::DoBothAction<Action1, Action2>(a1, a2);
    254 ]] $else [[
    255 $range j2 2..i
    256 
    257   return DoAll(a1, DoAll($for j2, [[a$j2]]));
    258 ]]
    259 
    260 }
    261 
    262 ]]
    263 
    264 }  // namespace testing
    265 
    266 // The ACTION* family of macros can be used in a namespace scope to
    267 // define custom actions easily.  The syntax:
    268 //
    269 //   ACTION(name) { statements; }
    270 //
    271 // will define an action with the given name that executes the
    272 // statements.  The value returned by the statements will be used as
    273 // the return value of the action.  Inside the statements, you can
    274 // refer to the K-th (0-based) argument of the mock function by
    275 // 'argK', and refer to its type by 'argK_type'.  For example:
    276 //
    277 //   ACTION(IncrementArg1) {
    278 //     arg1_type temp = arg1;
    279 //     return ++(*temp);
    280 //   }
    281 //
    282 // allows you to write
    283 //
    284 //   ...WillOnce(IncrementArg1());
    285 //
    286 // You can also refer to the entire argument tuple and its type by
    287 // 'args' and 'args_type', and refer to the mock function type and its
    288 // return type by 'function_type' and 'return_type'.
    289 //
    290 // Note that you don't need to specify the types of the mock function
    291 // arguments.  However rest assured that your code is still type-safe:
    292 // you'll get a compiler error if *arg1 doesn't support the ++
    293 // operator, or if the type of ++(*arg1) isn't compatible with the
    294 // mock function's return type, for example.
    295 //
    296 // Sometimes you'll want to parameterize the action.   For that you can use
    297 // another macro:
    298 //
    299 //   ACTION_P(name, param_name) { statements; }
    300 //
    301 // For example:
    302 //
    303 //   ACTION_P(Add, n) { return arg0 + n; }
    304 //
    305 // will allow you to write:
    306 //
    307 //   ...WillOnce(Add(5));
    308 //
    309 // Note that you don't need to provide the type of the parameter
    310 // either.  If you need to reference the type of a parameter named
    311 // 'foo', you can write 'foo_type'.  For example, in the body of
    312 // ACTION_P(Add, n) above, you can write 'n_type' to refer to the type
    313 // of 'n'.
    314 //
    315 // We also provide ACTION_P2, ACTION_P3, ..., up to ACTION_P$n to support
    316 // multi-parameter actions.
    317 //
    318 // For the purpose of typing, you can view
    319 //
    320 //   ACTION_Pk(Foo, p1, ..., pk) { ... }
    321 //
    322 // as shorthand for
    323 //
    324 //   template <typename p1_type, ..., typename pk_type>
    325 //   FooActionPk<p1_type, ..., pk_type> Foo(p1_type p1, ..., pk_type pk) { ... }
    326 //
    327 // In particular, you can provide the template type arguments
    328 // explicitly when invoking Foo(), as in Foo<long, bool>(5, false);
    329 // although usually you can rely on the compiler to infer the types
    330 // for you automatically.  You can assign the result of expression
    331 // Foo(p1, ..., pk) to a variable of type FooActionPk<p1_type, ...,
    332 // pk_type>.  This can be useful when composing actions.
    333 //
    334 // You can also overload actions with different numbers of parameters:
    335 //
    336 //   ACTION_P(Plus, a) { ... }
    337 //   ACTION_P2(Plus, a, b) { ... }
    338 //
    339 // While it's tempting to always use the ACTION* macros when defining
    340 // a new action, you should also consider implementing ActionInterface
    341 // or using MakePolymorphicAction() instead, especially if you need to
    342 // use the action a lot.  While these approaches require more work,
    343 // they give you more control on the types of the mock function
    344 // arguments and the action parameters, which in general leads to
    345 // better compiler error messages that pay off in the long run.  They
    346 // also allow overloading actions based on parameter types (as opposed
    347 // to just based on the number of parameters).
    348 //
    349 // CAVEAT:
    350 //
    351 // ACTION*() can only be used in a namespace scope.  The reason is
    352 // that C++ doesn't yet allow function-local types to be used to
    353 // instantiate templates.  The up-coming C++0x standard will fix this.
    354 // Once that's done, we'll consider supporting using ACTION*() inside
    355 // a function.
    356 //
    357 // MORE INFORMATION:
    358 //
    359 // To learn more about using these macros, please search for 'ACTION'
    360 // on http://code.google.com/p/googlemock/wiki/CookBook.
    361 
    362 $range i 0..n
    363 $range k 0..n-1
    364 
    365 // An internal macro needed for implementing ACTION*().
    366 #define GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_\
    367     const args_type& args GTEST_ATTRIBUTE_UNUSED_
    368 $for k [[, \
    369     arg$k[[]]_type arg$k GTEST_ATTRIBUTE_UNUSED_]]
    370 
    371 
    372 // Sometimes you want to give an action explicit template parameters
    373 // that cannot be inferred from its value parameters.  ACTION() and
    374 // ACTION_P*() don't support that.  ACTION_TEMPLATE() remedies that
    375 // and can be viewed as an extension to ACTION() and ACTION_P*().
    376 //
    377 // The syntax:
    378 //
    379 //   ACTION_TEMPLATE(ActionName,
    380 //                   HAS_m_TEMPLATE_PARAMS(kind1, name1, ..., kind_m, name_m),
    381 //                   AND_n_VALUE_PARAMS(p1, ..., p_n)) { statements; }
    382 //
    383 // defines an action template that takes m explicit template
    384 // parameters and n value parameters.  name_i is the name of the i-th
    385 // template parameter, and kind_i specifies whether it's a typename,
    386 // an integral constant, or a template.  p_i is the name of the i-th
    387 // value parameter.
    388 //
    389 // Example:
    390 //
    391 //   // DuplicateArg<k, T>(output) converts the k-th argument of the mock
    392 //   // function to type T and copies it to *output.
    393 //   ACTION_TEMPLATE(DuplicateArg,
    394 //                   HAS_2_TEMPLATE_PARAMS(int, k, typename, T),
    395 //                   AND_1_VALUE_PARAMS(output)) {
    396 //     *output = T(::testing::get<k>(args));
    397 //   }
    398 //   ...
    399 //     int n;
    400 //     EXPECT_CALL(mock, Foo(_, _))
    401 //         .WillOnce(DuplicateArg<1, unsigned char>(&n));
    402 //
    403 // To create an instance of an action template, write:
    404 //
    405 //   ActionName<t1, ..., t_m>(v1, ..., v_n)
    406 //
    407 // where the ts are the template arguments and the vs are the value
    408 // arguments.  The value argument types are inferred by the compiler.
    409 // If you want to explicitly specify the value argument types, you can
    410 // provide additional template arguments:
    411 //
    412 //   ActionName<t1, ..., t_m, u1, ..., u_k>(v1, ..., v_n)
    413 //
    414 // where u_i is the desired type of v_i.
    415 //
    416 // ACTION_TEMPLATE and ACTION/ACTION_P* can be overloaded on the
    417 // number of value parameters, but not on the number of template
    418 // parameters.  Without the restriction, the meaning of the following
    419 // is unclear:
    420 //
    421 //   OverloadedAction<int, bool>(x);
    422 //
    423 // Are we using a single-template-parameter action where 'bool' refers
    424 // to the type of x, or are we using a two-template-parameter action
    425 // where the compiler is asked to infer the type of x?
    426 //
    427 // Implementation notes:
    428 //
    429 // GMOCK_INTERNAL_*_HAS_m_TEMPLATE_PARAMS and
    430 // GMOCK_INTERNAL_*_AND_n_VALUE_PARAMS are internal macros for
    431 // implementing ACTION_TEMPLATE.  The main trick we use is to create
    432 // new macro invocations when expanding a macro.  For example, we have
    433 //
    434 //   #define ACTION_TEMPLATE(name, template_params, value_params)
    435 //       ... GMOCK_INTERNAL_DECL_##template_params ...
    436 //
    437 // which causes ACTION_TEMPLATE(..., HAS_1_TEMPLATE_PARAMS(typename, T), ...)
    438 // to expand to
    439 //
    440 //       ... GMOCK_INTERNAL_DECL_HAS_1_TEMPLATE_PARAMS(typename, T) ...
    441 //
    442 // Since GMOCK_INTERNAL_DECL_HAS_1_TEMPLATE_PARAMS is a macro, the
    443 // preprocessor will continue to expand it to
    444 //
    445 //       ... typename T ...
    446 //
    447 // This technique conforms to the C++ standard and is portable.  It
    448 // allows us to implement action templates using O(N) code, where N is
    449 // the maximum number of template/value parameters supported.  Without
    450 // using it, we'd have to devote O(N^2) amount of code to implement all
    451 // combinations of m and n.
    452 
    453 // Declares the template parameters.
    454 
    455 $range j 1..n
    456 $for j [[
    457 $range m 0..j-1
    458 #define GMOCK_INTERNAL_DECL_HAS_$j[[]]
    459 _TEMPLATE_PARAMS($for m, [[kind$m, name$m]]) $for m, [[kind$m name$m]]
    460 
    461 
    462 ]]
    463 
    464 // Lists the template parameters.
    465 
    466 $for j [[
    467 $range m 0..j-1
    468 #define GMOCK_INTERNAL_LIST_HAS_$j[[]]
    469 _TEMPLATE_PARAMS($for m, [[kind$m, name$m]]) $for m, [[name$m]]
    470 
    471 
    472 ]]
    473 
    474 // Declares the types of value parameters.
    475 
    476 $for i [[
    477 $range j 0..i-1
    478 #define GMOCK_INTERNAL_DECL_TYPE_AND_$i[[]]
    479 _VALUE_PARAMS($for j, [[p$j]]) $for j [[, typename p$j##_type]]
    480 
    481 
    482 ]]
    483 
    484 // Initializes the value parameters.
    485 
    486 $for i [[
    487 $range j 0..i-1
    488 #define GMOCK_INTERNAL_INIT_AND_$i[[]]_VALUE_PARAMS($for j, [[p$j]])\
    489     ($for j, [[p$j##_type gmock_p$j]])$if i>0 [[ : ]]$for j, [[p$j(gmock_p$j)]]
    490 
    491 
    492 ]]
    493 
    494 // Declares the fields for storing the value parameters.
    495 
    496 $for i [[
    497 $range j 0..i-1
    498 #define GMOCK_INTERNAL_DEFN_AND_$i[[]]
    499 _VALUE_PARAMS($for j, [[p$j]]) $for j [[p$j##_type p$j; ]]
    500 
    501 
    502 ]]
    503 
    504 // Lists the value parameters.
    505 
    506 $for i [[
    507 $range j 0..i-1
    508 #define GMOCK_INTERNAL_LIST_AND_$i[[]]
    509 _VALUE_PARAMS($for j, [[p$j]]) $for j, [[p$j]]
    510 
    511 
    512 ]]
    513 
    514 // Lists the value parameter types.
    515 
    516 $for i [[
    517 $range j 0..i-1
    518 #define GMOCK_INTERNAL_LIST_TYPE_AND_$i[[]]
    519 _VALUE_PARAMS($for j, [[p$j]]) $for j [[, p$j##_type]]
    520 
    521 
    522 ]]
    523 
    524 // Declares the value parameters.
    525 
    526 $for i [[
    527 $range j 0..i-1
    528 #define GMOCK_INTERNAL_DECL_AND_$i[[]]_VALUE_PARAMS($for j, [[p$j]]) [[]]
    529 $for j, [[p$j##_type p$j]]
    530 
    531 
    532 ]]
    533 
    534 // The suffix of the class template implementing the action template.
    535 $for i [[
    536 
    537 
    538 $range j 0..i-1
    539 #define GMOCK_INTERNAL_COUNT_AND_$i[[]]_VALUE_PARAMS($for j, [[p$j]]) [[]]
    540 $if i==1 [[P]] $elif i>=2 [[P$i]]
    541 ]]
    542 
    543 
    544 // The name of the class template implementing the action template.
    545 #define GMOCK_ACTION_CLASS_(name, value_params)\
    546     GTEST_CONCAT_TOKEN_(name##Action, GMOCK_INTERNAL_COUNT_##value_params)
    547 
    548 $range k 0..n-1
    549 
    550 #define ACTION_TEMPLATE(name, template_params, value_params)\
    551   template <GMOCK_INTERNAL_DECL_##template_params\
    552             GMOCK_INTERNAL_DECL_TYPE_##value_params>\
    553   class GMOCK_ACTION_CLASS_(name, value_params) {\
    554    public:\
    555     explicit GMOCK_ACTION_CLASS_(name, value_params)\
    556         GMOCK_INTERNAL_INIT_##value_params {}\
    557     template <typename F>\
    558     class gmock_Impl : public ::testing::ActionInterface<F> {\
    559      public:\
    560       typedef F function_type;\
    561       typedef typename ::testing::internal::Function<F>::Result return_type;\
    562       typedef typename ::testing::internal::Function<F>::ArgumentTuple\
    563           args_type;\
    564       explicit gmock_Impl GMOCK_INTERNAL_INIT_##value_params {}\
    565       virtual return_type Perform(const args_type& args) {\
    566         return ::testing::internal::ActionHelper<return_type, gmock_Impl>::\
    567             Perform(this, args);\
    568       }\
    569       template <$for k, [[typename arg$k[[]]_type]]>\
    570       return_type gmock_PerformImpl(const args_type& args[[]]
    571 $for k [[, arg$k[[]]_type arg$k]]) const;\
    572       GMOCK_INTERNAL_DEFN_##value_params\
    573      private:\
    574       GTEST_DISALLOW_ASSIGN_(gmock_Impl);\
    575     };\
    576     template <typename F> operator ::testing::Action<F>() const {\
    577       return ::testing::Action<F>(\
    578           new gmock_Impl<F>(GMOCK_INTERNAL_LIST_##value_params));\
    579     }\
    580     GMOCK_INTERNAL_DEFN_##value_params\
    581    private:\
    582     GTEST_DISALLOW_ASSIGN_(GMOCK_ACTION_CLASS_(name, value_params));\
    583   };\
    584   template <GMOCK_INTERNAL_DECL_##template_params\
    585             GMOCK_INTERNAL_DECL_TYPE_##value_params>\
    586   inline GMOCK_ACTION_CLASS_(name, value_params)<\
    587       GMOCK_INTERNAL_LIST_##template_params\
    588       GMOCK_INTERNAL_LIST_TYPE_##value_params> name(\
    589           GMOCK_INTERNAL_DECL_##value_params) {\
    590     return GMOCK_ACTION_CLASS_(name, value_params)<\
    591         GMOCK_INTERNAL_LIST_##template_params\
    592         GMOCK_INTERNAL_LIST_TYPE_##value_params>(\
    593             GMOCK_INTERNAL_LIST_##value_params);\
    594   }\
    595   template <GMOCK_INTERNAL_DECL_##template_params\
    596             GMOCK_INTERNAL_DECL_TYPE_##value_params>\
    597   template <typename F>\
    598   template <typename arg0_type, typename arg1_type, typename arg2_type, \
    599       typename arg3_type, typename arg4_type, typename arg5_type, \
    600       typename arg6_type, typename arg7_type, typename arg8_type, \
    601       typename arg9_type>\
    602   typename ::testing::internal::Function<F>::Result\
    603       GMOCK_ACTION_CLASS_(name, value_params)<\
    604           GMOCK_INTERNAL_LIST_##template_params\
    605           GMOCK_INTERNAL_LIST_TYPE_##value_params>::gmock_Impl<F>::\
    606               gmock_PerformImpl(\
    607           GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
    608 
    609 $for i
    610 
    611 [[
    612 $var template = [[$if i==0 [[]] $else [[
    613 $range j 0..i-1
    614 
    615   template <$for j, [[typename p$j##_type]]>\
    616 ]]]]
    617 $var class_name = [[name##Action[[$if i==0 [[]] $elif i==1 [[P]]
    618                                                 $else [[P$i]]]]]]
    619 $range j 0..i-1
    620 $var ctor_param_list = [[$for j, [[p$j##_type gmock_p$j]]]]
    621 $var param_types_and_names = [[$for j, [[p$j##_type p$j]]]]
    622 $var inits = [[$if i==0 [[]] $else [[ : $for j, [[p$j(gmock_p$j)]]]]]]
    623 $var param_field_decls = [[$for j
    624 [[
    625 
    626       p$j##_type p$j;\
    627 ]]]]
    628 $var param_field_decls2 = [[$for j
    629 [[
    630 
    631     p$j##_type p$j;\
    632 ]]]]
    633 $var params = [[$for j, [[p$j]]]]
    634 $var param_types = [[$if i==0 [[]] $else [[<$for j, [[p$j##_type]]>]]]]
    635 $var typename_arg_types = [[$for k, [[typename arg$k[[]]_type]]]]
    636 $var arg_types_and_names = [[$for k, [[arg$k[[]]_type arg$k]]]]
    637 $var macro_name = [[$if i==0 [[ACTION]] $elif i==1 [[ACTION_P]]
    638                                         $else [[ACTION_P$i]]]]
    639 
    640 #define $macro_name(name$for j [[, p$j]])\$template
    641   class $class_name {\
    642    public:\
    643     [[$if i==1 [[explicit ]]]]$class_name($ctor_param_list)$inits {}\
    644     template <typename F>\
    645     class gmock_Impl : public ::testing::ActionInterface<F> {\
    646      public:\
    647       typedef F function_type;\
    648       typedef typename ::testing::internal::Function<F>::Result return_type;\
    649       typedef typename ::testing::internal::Function<F>::ArgumentTuple\
    650           args_type;\
    651       [[$if i==1 [[explicit ]]]]gmock_Impl($ctor_param_list)$inits {}\
    652       virtual return_type Perform(const args_type& args) {\
    653         return ::testing::internal::ActionHelper<return_type, gmock_Impl>::\
    654             Perform(this, args);\
    655       }\
    656       template <$typename_arg_types>\
    657       return_type gmock_PerformImpl(const args_type& args, [[]]
    658 $arg_types_and_names) const;\$param_field_decls
    659      private:\
    660       GTEST_DISALLOW_ASSIGN_(gmock_Impl);\
    661     };\
    662     template <typename F> operator ::testing::Action<F>() const {\
    663       return ::testing::Action<F>(new gmock_Impl<F>($params));\
    664     }\$param_field_decls2
    665    private:\
    666     GTEST_DISALLOW_ASSIGN_($class_name);\
    667   };\$template
    668   inline $class_name$param_types name($param_types_and_names) {\
    669     return $class_name$param_types($params);\
    670   }\$template
    671   template <typename F>\
    672   template <$typename_arg_types>\
    673   typename ::testing::internal::Function<F>::Result\
    674       $class_name$param_types::gmock_Impl<F>::gmock_PerformImpl(\
    675           GMOCK_ACTION_ARG_TYPES_AND_NAMES_UNUSED_) const
    676 ]]
    677 $$ }  // This meta comment fixes auto-indentation in Emacs.  It won't
    678 $$    // show up in the generated code.
    679 
    680 
    681 namespace testing {
    682 
    683 
    684 // The ACTION*() macros trigger warning C4100 (unreferenced formal
    685 // parameter) in MSVC with -W4.  Unfortunately they cannot be fixed in
    686 // the macro definition, as the warnings are generated when the macro
    687 // is expanded and macro expansion cannot contain #pragma.  Therefore
    688 // we suppress them here.
    689 #ifdef _MSC_VER
    690 # pragma warning(push)
    691 # pragma warning(disable:4100)
    692 #endif
    693 
    694 // Various overloads for InvokeArgument<N>().
    695 //
    696 // The InvokeArgument<N>(a1, a2, ..., a_k) action invokes the N-th
    697 // (0-based) argument, which must be a k-ary callable, of the mock
    698 // function, with arguments a1, a2, ..., a_k.
    699 //
    700 // Notes:
    701 //
    702 //   1. The arguments are passed by value by default.  If you need to
    703 //   pass an argument by reference, wrap it inside ByRef().  For
    704 //   example,
    705 //
    706 //     InvokeArgument<1>(5, string("Hello"), ByRef(foo))
    707 //
    708 //   passes 5 and string("Hello") by value, and passes foo by
    709 //   reference.
    710 //
    711 //   2. If the callable takes an argument by reference but ByRef() is
    712 //   not used, it will receive the reference to a copy of the value,
    713 //   instead of the original value.  For example, when the 0-th
    714 //   argument of the mock function takes a const string&, the action
    715 //
    716 //     InvokeArgument<0>(string("Hello"))
    717 //
    718 //   makes a copy of the temporary string("Hello") object and passes a
    719 //   reference of the copy, instead of the original temporary object,
    720 //   to the callable.  This makes it easy for a user to define an
    721 //   InvokeArgument action from temporary values and have it performed
    722 //   later.
    723 
    724 namespace internal {
    725 namespace invoke_argument {
    726 
    727 // Appears in InvokeArgumentAdl's argument list to help avoid
    728 // accidental calls to user functions of the same name.
    729 struct AdlTag {};
    730 
    731 // InvokeArgumentAdl - a helper for InvokeArgument.
    732 // The basic overloads are provided here for generic functors.
    733 // Overloads for other custom-callables are provided in the
    734 // internal/custom/callback-actions.h header.
    735 
    736 $range i 0..n
    737 $for i
    738 [[
    739 $range j 1..i
    740 
    741 template <typename R, typename F[[$for j [[, typename A$j]]]]>
    742 R InvokeArgumentAdl(AdlTag, F f[[$for j [[, A$j a$j]]]]) {
    743   return f([[$for j, [[a$j]]]]);
    744 }
    745 ]]
    746 
    747 }  // namespace invoke_argument
    748 }  // namespace internal
    749 
    750 $range i 0..n
    751 $for i [[
    752 $range j 0..i-1
    753 
    754 ACTION_TEMPLATE(InvokeArgument,
    755                 HAS_1_TEMPLATE_PARAMS(int, k),
    756                 AND_$i[[]]_VALUE_PARAMS($for j, [[p$j]])) {
    757   using internal::invoke_argument::InvokeArgumentAdl;
    758   return InvokeArgumentAdl<return_type>(
    759       internal::invoke_argument::AdlTag(),
    760       ::testing::get<k>(args)$for j [[, p$j]]);
    761 }
    762 
    763 ]]
    764 
    765 // Various overloads for ReturnNew<T>().
    766 //
    767 // The ReturnNew<T>(a1, a2, ..., a_k) action returns a pointer to a new
    768 // instance of type T, constructed on the heap with constructor arguments
    769 // a1, a2, ..., and a_k. The caller assumes ownership of the returned value.
    770 $range i 0..n
    771 $for i [[
    772 $range j 0..i-1
    773 $var ps = [[$for j, [[p$j]]]]
    774 
    775 ACTION_TEMPLATE(ReturnNew,
    776                 HAS_1_TEMPLATE_PARAMS(typename, T),
    777                 AND_$i[[]]_VALUE_PARAMS($ps)) {
    778   return new T($ps);
    779 }
    780 
    781 ]]
    782 
    783 #ifdef _MSC_VER
    784 # pragma warning(pop)
    785 #endif
    786 
    787 }  // namespace testing
    788 
    789 // Include any custom callback actions added by the local installation.
    790 // We must include this header at the end to make sure it can use the
    791 // declarations from this file.
    792 #include "gmock/internal/custom/gmock-generated-actions.h"
    793 
    794 #endif  // GMOCK_INCLUDE_GMOCK_GMOCK_GENERATED_ACTIONS_H_
    795