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add MethodResultCallback_0_0

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This commit is contained in:
Camillo Lugaresi 2016-12-20 17:38:09 -08:00
parent d948b66d4f
commit 4e229c8b5c
1 changed files with 30 additions and 0 deletions
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30
src/google/protobuf/stubs/callback.h
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@ -346,6 +346,29 @@ struct InternalConstRef {
typedef const base_type& type;
};
template<typename R, typename T>
class MethodResultCallback_0_0 : public ResultCallback<R> {
public:
typedef R (T::*MethodType)();
MethodResultCallback_0_0(T* object, MethodType method, bool self_deleting)
: object_(object),
method_(method),
self_deleting_(self_deleting) {}
~MethodResultCallback_0_0() {}
R Run() {
bool needs_delete = self_deleting_;
R result = (object_->*method_)();
if (needs_delete) delete this;
return result;
}
private:
T* object_;
MethodType method_;
bool self_deleting_;
};
template <typename R, typename T, typename P1, typename P2, typename P3,
typename P4, typename P5, typename A1, typename A2>
class MethodResultCallback_5_2 : public ResultCallback2<R, A1, A2> {
@ -520,6 +543,13 @@ inline ResultCallback1<R, A1>* NewPermanentCallback(
function, false, p1);
}
// See MethodResultCallback_0_0
template <typename R, typename T1, typename T2>
inline ResultCallback<R>* NewPermanentCallback(
T1* object, R (T2::*function)()) {
return new internal::MethodResultCallback_0_0<R, T1>(object, function, false);
}
// See MethodResultCallback_5_2
template <typename R, typename T, typename P1, typename P2, typename P3,
typename P4, typename P5, typename A1, typename A2>