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DockAccess: better pass functor as const& into partial application

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seems to be the most orthogonal way to strip adornments from the SIG type
Moreover, we want to move the functor into the closure, where it will be stored anyay.
From there on, we can pass as const& into the binder (for creating the partially closed functor)
This commit is contained in:
Fischlurch 2018-01-13 00:58:08 +01:00
parent 90a5d76fc9
commit b6961e8f03
3 changed files with 16 additions and 12 deletions
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6
src/gui/interact/view-spec-dsl.hpp
View file

@ -177,7 +177,7 @@ namespace interact {
{
template<class FUN>
static auto
buildPartialApplicator (FUN fun)
buildPartialApplicator (FUN&& fun)
{
using lib::meta::_Fun;
using lib::meta::Split;
@ -202,13 +202,13 @@ namespace interact {
return [=](auto&&... args) -> Allocator
{
ArgTuple params {forward<decltype(args)> (args)...};
return PApply<FUN const&,FurtherArgs>::bindBack (fun, params);
return PApply<FUN,FurtherArgs>::bindBack (fun, params);
};
}
public:
template<class FUN>
AllocSpec(FUN fun)
AllocSpec(FUN&& fun)
: std::function<Allocator(ARGS&&...)> (buildPartialApplicator (forward<FUN> (fun)))
{ }
};

4
src/lib/meta/function-closure.hpp
View file

@ -620,7 +620,7 @@ namespace func{
* closed arguments; on invocation, only the remaining arguments need to be supplied.
*/
static LeftReducedFunc
bindFront (SIG& f, Tuple<ValTypes> const& arg)
bindFront (SIG const& f, Tuple<ValTypes> const& arg)
{
LeftReplacedArgs params {BuildL(arg)};
return func::Apply<ARG_CNT>::template bind<LeftReducedFunc> (f, params);
@ -635,7 +635,7 @@ namespace func{
* closed arguments; on invocation, only the remaining arguments need to be supplied.
*/
static RightReducedFunc
bindBack (SIG& f, Tuple<ValTypes> const& arg)
bindBack (SIG const& f, Tuple<ValTypes> const& arg)
{
RightReplacedArgs params {BuildR(arg)};
return func::Apply<ARG_CNT>::template bind<RightReducedFunc> (f, params);

18
wiki/thinkPad.ichthyo.mm
View file

@ -9098,8 +9098,7 @@
n&#228;mlich in lib::meta::func::PApply::bindBack
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@ -9147,8 +9146,7 @@
};
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<node COLOR="#ef5d2b" CREATED="1515726754041" ID="ID_315893428" LINK="http://en.cppreference.com/w/cpp/language/lambda" MODIFIED="1515726793618" TEXT="cppreference..."/>
@ -9157,7 +9155,8 @@
<node CREATED="1515726268721" ID="ID_243053845" MODIFIED="1515726329213" TEXT="welches intern PApply aufruft"/>
</node>
<node CREATED="1515732350136" ID="ID_1294398139" MODIFIED="1515732355403" TEXT="technisch....">
<node BACKGROUND_COLOR="#fdfdcf" COLOR="#ff0000" CREATED="1515732356319" ID="ID_1071937152" MODIFIED="1515798985447" TEXT="Problem: generisches Lambda in std::function binden">
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@ -9170,8 +9169,7 @@
Vermutung: mu&#223; Lambda <b>instantiieren</b>...
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<node CREATED="1515797030493" ID="ID_973074141" MODIFIED="1515799063868" TEXT="Nein: es ist wohl ehr der R&#xfc;ckgabetyp">
@ -9182,6 +9180,12 @@
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<node CREATED="1515801313185" ID="ID_1411407565" MODIFIED="1515801322004" TEXT="Funktor bis in die Closure per Move"/>
<node CREATED="1515801324016" ID="ID_814347755" MODIFIED="1515801353352" TEXT="Closure an PApply per const&amp; --&gt; Binder erzeugen"/>
<node CREATED="1515801355124" ID="ID_1735797839" MODIFIED="1515801393059" TEXT="Lambda: Argumente in das Argument-Tupel per Move"/>
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