From 5a0d4f3313157d2fe48e9d159968bed6883eb5f8 Mon Sep 17 00:00:00 2001
From: Vitaly Fanaskov <vitaly.fanaskov@qt.io>
Date: Wed, 11 Mar 2020 18:07:03 +0100
Subject: QtConcurrent: add fluent interface to configure a task before run

Task-number: QTBUG-82950
Change-Id: I449da938b6b501a7646b3425edde5c880d6ca87e
Reviewed-by: Qt CI Bot <qt_ci_bot@qt-project.org>
Reviewed-by: Paul Wicking <paul.wicking@qt.io>
Reviewed-by: Mikhail Svetkin <mikhail.svetkin@gmail.com>
---
 src/concurrent/qtconcurrentstoredfunctioncall.h | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

(limited to 'src/concurrent/qtconcurrentstoredfunctioncall.h')

diff --git a/src/concurrent/qtconcurrentstoredfunctioncall.h b/src/concurrent/qtconcurrentstoredfunctioncall.h
index e2d0e3de0fd..f64648d7e96 100644
--- a/src/concurrent/qtconcurrentstoredfunctioncall.h
+++ b/src/concurrent/qtconcurrentstoredfunctioncall.h
@@ -48,7 +48,6 @@
 
 QT_BEGIN_NAMESPACE
 
-
 #ifndef Q_QDOC
 
 namespace QtConcurrent {
@@ -65,16 +64,20 @@ struct InvokeResult
 template <class Function, class ...Args>
 using InvokeResultType = typename InvokeResult<Function, Args...>::Type;
 
+template <class ...Types>
+using DecayedTuple = std::tuple<std::decay_t<Types>...>;
+
 template <class Function, class ...Args>
 struct StoredFunctionCall : public RunFunctionTask<InvokeResultType<Function, Args...>>
 {
-    template <class ...Types>
-    using DecayedTuple = std::tuple<std::decay_t<Types>...>;
-
     StoredFunctionCall(Function &&f, Args &&...args)
         : data{std::forward<Function>(f), std::forward<Args>(args)...}
     {}
 
+    StoredFunctionCall(DecayedTuple<Function, Args...> &&_data)
+        : data(std::move(_data))
+    {}
+
     void runFunctor() override
     {
         using Indexes =
-- 
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