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StoredFunctionCall: simplify runFunctor implementation

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Task-number: QTBUG-82383
Change-Id: Ib8e196106c80e8f3aba1ff7d0c8b76a547c648da
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
This commit is contained in:
Vitaly Fanaskov 2020-03-31 16:24:29 +02:00
parent 23be07c2d0
commit 8365322d3d
1 changed files with 4 additions and 11 deletions
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15
src/concurrent/qtconcurrentstoredfunctioncall.h
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@ -80,20 +80,13 @@ struct StoredFunctionCall : public RunFunctionTask<InvokeResultType<Function, Ar
void runFunctor() override void runFunctor() override
{ {
using Indexes = constexpr auto invoke = &std::invoke<std::decay_t<Function>,
std::make_index_sequence< std::decay_t<Args>...>;
std::tuple_size<DecayedTuple<Function, Args...>>::value>;
invoke(Indexes());
}
template <std::size_t... I>
void invoke(std::index_sequence<I...>)
{
if constexpr (std::is_void_v<InvokeResultType<Function, Args...>>) if constexpr (std::is_void_v<InvokeResultType<Function, Args...>>)
std::invoke(std::get<I>(std::move(data))...); std::apply(invoke, std::move(data));
else else
this->result = std::invoke(std::get<I>(std::move(data))...); this->result = std::apply(invoke, std::move(data));
} }
DecayedTuple<Function, Args...> data; DecayedTuple<Function, Args...> data;