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xo-alloc2: work on alloc_range + operator++ for alloc iterators [WIP]

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This commit is contained in:
Roland Conybeare 2025-12-19 13:55:19 -05:00
commit 5c7a2e1ad5
9 changed files with 165 additions and 48 deletions
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39
xo-alloc2/src/alloc2/IAllocator_DArena.cpp
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@ -74,13 +74,46 @@ namespace xo {
IAllocator_DArena::alloc_range(const DArena & s,
DArena & ialloc) noexcept -> range_type
{
scope log(XO_DEBUG(true));
DArenaIterator * begin_ix = construct_with<DArenaIterator>(ialloc, &s, s.begin_header());
DArenaIterator * end_ix = construct_with<DArenaIterator>(ialloc, &s, s.end_header());
obj<AAllocIterator> begin_obj = with_facet<AAllocIterator>::mkobj(begin_ix);
obj<AAllocIterator> end_obj = with_facet<AAllocIterator>::mkobj( end_ix);
obj<AAllocIterator,DArenaIterator> begin_obj = with_facet<AAllocIterator>::mkobj(begin_ix);
obj<AAllocIterator,DArenaIterator> end_obj = with_facet<AAllocIterator>::mkobj( end_ix);
return std::make_pair(begin_obj, end_obj);
log && log(xtag("begin_obj.typeseq", begin_obj._typeseq()));
obj<AAllocIterator> begin_vt = begin_obj;
obj<AAllocIterator> end_vt = end_obj;
log && log(xtag("begin_vt.typeseq", begin_vt._typeseq()));
log && log(xtag("begin_ix", begin_ix),
xtag("begin_ix.arena", begin_ix->arena_),
xtag("begin_ix.pos", begin_ix->pos_));
range_type retval = std::make_pair(begin_vt, end_vt);
log && log(xtag("1.retval.first.typeseq", retval.first._typeseq()));
retval.first.from_obj(begin_vt);
retval.second.from_obj(end_vt);
// this gets correct typeseq. so first.from_obj() works
log && log(xtag("2.retval.first.typeseq", retval.first._typeseq()));
obj<AAllocIterator> begin_vt2;
begin_vt2 = retval.first;
log && log(xtag("3.begin_vt2.typeseq", begin_vt2._typeseq()));
retval = std::make_pair(begin_vt2, begin_vt2);
log && log(xtag("4.retval.first.typeseq", retval.first._typeseq()));
return retval;
}
bool