Googletest export

Refactor the `Invoke` and `InvokeWithoutArgs` actions:
 - Replace pump'd classes and functions with templates.
 - Make the polymorphic actions be polymorphic functors instead.
 - Fix Invoke(Callback*) to work with subclasses of the callbacks, instead of trying to diagnose that in gmock_doctor.

PiperOrigin-RevId: 229604112

googlemock/include/gmock/gmock-generated-actions.h.pump

@@ -52,76 +52,6 @@ $$}} This meta comment fixes auto-indentation in editors.
 namespace testing {
 namespace internal {
 
-// InvokeHelper<F> knows how to unpack an N-tuple and invoke an N-ary
-// function, method, or callback with the unpacked values, where F is
-// a function type that takes N arguments.
-template <typename Result, typename ArgumentTuple>
-class InvokeHelper;
-
-
-$var max_callback_arity = 5
-$range i 0..n
-$for i [[
-$range j 1..i
-$var types = [[$for j [[, typename A$j]]]]
-$var as = [[$for j, [[A$j]]]]
-$var args = [[$if i==0 [[]] $else [[ args]]]]
-$var gets = [[$for j, [[std::get<$(j - 1)>(args)]]]]
-template <typename R$types>
-class InvokeHelper<R, ::std::tuple<$as> > {
- public:
-  template <typename Function>
-  static R Invoke(Function function, const ::std::tuple<$as>&$args) {
-           return function($gets);
-  }
-
-  template <class Class, typename MethodPtr>
-  static R InvokeMethod(Class* obj_ptr,
-                        MethodPtr method_ptr,
-                        const ::std::tuple<$as>&$args) {
-           return (obj_ptr->*method_ptr)($gets);
-  }
-
-
-$if i <= max_callback_arity [[
-  template <typename CallbackType>
-  static R InvokeCallback(CallbackType* callback,
-                          const ::std::tuple<$as>&$args) {
-           return callback->Run($gets);
-  }
-]] $else [[
-  // There is no InvokeCallback() for $i-tuples
-]]
-
-};
-
-
-]]
-// Implements the Invoke(callback) action.
-template <typename CallbackType>
-class InvokeCallbackAction {
- public:
-  // The c'tor takes ownership of the callback.
-  explicit InvokeCallbackAction(CallbackType* callback)
-      : callback_(callback) {
-    callback->CheckIsRepeatable();  // Makes sure the callback is permanent.
-  }
-
-  // This type conversion operator template allows Invoke(callback) to
-  // be used wherever the callback's type is compatible with that of
-  // the mock function, i.e. if the mock function's arguments can be
-  // implicitly converted to the callback's arguments and the
-  // callback's result can be implicitly converted to the mock
-  // function's result.
-  template <typename Result, typename ArgumentTuple>
-  Result Perform(const ArgumentTuple& args) const {
-    return InvokeHelper<Result, ArgumentTuple>::InvokeCallback(
-        callback_.get(), args);
-  }
- private:
-  const std::shared_ptr<CallbackType> callback_;
-};
-
 // A macro from the ACTION* family (defined later in this file)
 // defines an action that can be used in a mock function.  Typically,
 // these actions only care about a subset of the arguments of the mock