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xo-objectd2 xo-printable xo-facet: pp working for List(Integer)

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Also streamline facet switching
This commit is contained in:
Roland Conybeare 2026-01-09 17:48:54 -05:00
commit 09ee3a20ac
23 changed files with 508 additions and 27 deletions
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FAQ-DEV.md Normal file
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Error like this:
```
/home/roland/proj/xo-umbrella2-claude1/./xo-facet/include/xo/facet/OObject.hpp:63:19: required from ‘struct xo::facet::OObject<xo::mm::AGCObject, xo::scm::DList>’
63 | using ISpecific = FacetImplType<AFacet, DRepr>;
| ^~~~~~~~~
/home/roland/proj/xo-umbrella2-claude1/./xo-gc/include/xo/gc/detail/RGCObject.hpp:15:16: required from ‘struct xo::mm::RGCObject<xo::facet::OObject<xo::mm::AGCObject, xo::scm::DList> >’
15 | struct RGCObject : public Object {
| ^~~~~~~~~
/home/roland/proj/xo-umbrella2-claude1/./xo-facet/include/xo/facet/obj.hpp:49:16: required from ‘struct xo::facet::obj<xo::mm::AGCObject, xo::scm::DList>’
49 | struct obj : public RoutingType<AFacet, OObject<AFacet, DRepr>> {
| ^~~
/home/roland/proj/xo-umbrella2-claude1/xo-object2/utest/Printable.test.cpp:81:57: required from here
81 | auto l0_o = with_facet<AGCObject>::mkobj(l0);
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~
/home/roland/proj/xo-umbrella2-claude1/./xo-facet/include/xo/facet/facet_implementation.hpp:97:15: error: no type named ‘ImplType’ in ‘struct xo::facet::FacetImplementation<xo::mm::AGCObject, xo::scm::DList>’
97 | using FacetImplType = FacetImplementation<AFacet, DRepr>::ImplType;
| ^~~~~~~~~~~~~
```
means implementation `xo::mm::AGCObject` for `xo::scm::DList` is not availabel to compiler.
Either missing implementation or missing header.
In example implementation would be in a file `IGCObject_DList.hpp`