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Make future::get return the object by value

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This commit is contained in:
Nikita Lisitsa 2021-04-27 23:12:59 +03:00
parent 497b90ee7a
commit 5eb5174472
1 changed files with 3 additions and 14 deletions
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17
libs/async/include/psemek/async/future.hpp
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@ -14,17 +14,6 @@ namespace psemek::async
namespace detail
{
template <typename T>
struct get_return_type
{
using type = T &;
};
template <>
struct get_return_type<void>
{
using type = void;
};
template <typename T>
struct task_value_container
@ -41,7 +30,7 @@ namespace psemek::async
template <typename T>
struct then_function
{
using type = util::function<void(T &)>;
using type = util::function<void(T)>;
};
template <>
@ -142,7 +131,7 @@ namespace psemek::async
return has_value_unsafe();
}
detail::get_return_type<T>::type get()
T get()
{
if (!state_)
throw empty_future_error{};
@ -154,7 +143,7 @@ namespace psemek::async
if constexpr (std::is_same_v<T, void>)
return;
else
return *(state_->value);
return std::move(*(state_->value));
}
else
std::rethrow_exception(state_->exception);