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TreeExplorer: find a way to extract the boilerplate

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...based on generic lambdas, which are effectively template classes themselves
This commit is contained in:
Fischlurch 2018-09-02 19:28:11 +02:00
parent 94da0f627f
commit b4edf8e33c
2 changed files with 31 additions and 5 deletions
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14
src/lib/iter-tree-explorer.hpp
View file

@ -926,12 +926,16 @@ namespace lib {
FilterPredicate& firstClause = this->predicate_;
ChainPredicate chainClause{forward<COND> (conjunctiveClause)};
auto buildCombinedClause = [](auto first, auto second)
{
return [=](auto val)
{
return first(val)
and second(val);
};
};
predicate_ = FilterPredicate{[firstClause, chainClause] (auto val)
{
return firstClause(val)
and chainClause(val);
} };
predicate_ = FilterPredicate{buildCombinedClause (firstClause, chainClause)};
pullFilter();
}

22
wiki/thinkPad.ichthyo.mm
View file

@ -30977,10 +30977,32 @@
<node CREATED="1535906261464" ID="ID_1343076549" MODIFIED="1535906264259" TEXT="Auswege">
<node CREATED="1535906265911" ID="ID_442265155" MODIFIED="1535906279633" TEXT="speziellen Filter-Layer nur hierf&#xfc;r">
<node CREATED="1535906327782" ID="ID_1903350743" MODIFIED="1535906334769" TEXT="letztlich nur Code-Kosmetik"/>
<node CREATED="1535909106704" ID="ID_1756811057" MODIFIED="1535909115714" TEXT="w&#xfc;rde aber sehr speziellen Fall markieren"/>
<node CREATED="1535909145091" ID="ID_23855152" MODIFIED="1535909185418">
<richcontent TYPE="NODE"><html>
<head>
</head>
<body>
<p>
Name: <b>mutableFilter</b>()
</p>
</body>
</html>
</richcontent>
<icon BUILTIN="idea"/>
</node>
</node>
<node CREATED="1535906283948" ID="ID_367978731" MODIFIED="1535906294727" TEXT="Chain-Filter-Bau in HIlfsfunktion">
<node CREATED="1535906394646" ID="ID_296637778" MODIFIED="1535906399057" TEXT="w&#xfc;nschenswert"/>
<node CREATED="1535906399621" ID="ID_1487063274" MODIFIED="1535906407632" TEXT="nicht klar, ob &#xfc;berhaupt m&#xf6;glich"/>
<node CREATED="1535909021163" ID="ID_1776922208" MODIFIED="1535909030226" TEXT="geschachtelte generische Lambdas verwenden">
<icon BUILTIN="idea"/>
</node>
<node CREATED="1535909041497" ID="ID_911444458" MODIFIED="1535909052069" TEXT="AUA&#xb3;">
<icon BUILTIN="ksmiletris"/>
<node CREATED="1535909192572" ID="ID_1938820560" MODIFIED="1535909197055" TEXT="aber es geht...."/>
</node>
</node>
</node>
</node>