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implement the remaining attribute handling functions for Record<GenNode>

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There is no generic implementation for these functions, since
they are highly dependent on the payload used within Record<TY>
Here we use Record<GenNode>, which turns the whole setup into an
recursive data type; we especially rely on the fact that each
GenNode has an embedded symbolic ID, and we use this ID to encode
the 'key' for named attributes
This commit is contained in:
Fischlurch 2015-08-28 18:27:23 +02:00
parent 96791d4a45
commit 33a6294a9b
1 changed files with 9 additions and 7 deletions
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16
src/lib/diff/gen-node.hpp
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@ -366,44 +366,46 @@ namespace diff{
template<>
inline bool
Rec::isAttribute (GenNode const& v)
Rec::isAttribute (GenNode const& attrib)
{
return false; ////TODO
return attrib.isNamed();
}
template<>
inline bool
Rec::isTypeID (GenNode const& v)
{
return false; ////TODO
return "type" == v.idi.getSym();
}
template<>
inline string
Rec::extractTypeID (GenNode const& v)
{
return "todo"; ////TODO
return isTypeID(v)? v.data.get<string>()
: Rec::TYPE_NIL;
}
template<>
inline string
Rec::extractKey (GenNode const& v)
{
return v.idi.getSym();
return isAttribute(v)? v.idi.getSym()
: "";
}
template<>
inline GenNode const&
Rec::extractVal (GenNode const& v)
{
return GenNode(v); ///TODO
return v;
}
template<>
inline string
Rec::renderAttribute (GenNode const& a)
{
return "notyet = todo"; ////TODO
return a.idi.getSym() +" = "+string(a.data);
}
template<>