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xo-object2: + DArray::array() n-ary factory method

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This commit is contained in:
Roland Conybeare 2026-01-15 15:37:42 -05:00
commit c7ff46bd36
1 changed files with 19 additions and 0 deletions
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19
include/xo/object2/DArray.hpp
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@ -10,6 +10,7 @@
#include <xo/alloc2/Allocator.hpp> #include <xo/alloc2/Allocator.hpp>
#include <xo/facet/obj.hpp> #include <xo/facet/obj.hpp>
#include <xo/indentlog/print/ppindentinfo.hpp> #include <xo/indentlog/print/ppindentinfo.hpp>
#include <concepts>
#include <cstdint> #include <cstdint>
namespace xo { namespace xo {
@ -57,6 +58,12 @@ namespace xo {
static DArray * empty(obj<AAllocator> mm, static DArray * empty(obj<AAllocator> mm,
size_type cap); size_type cap);
/** create array containing elements @p args, using memory from @p mm.
* Nullptr if space exhausted.
**/
template <typename... Args>
requires (std::same_as<Args, obj<AGCObject>> && ...)
static DArray * array(obj<AAllocator> mm, Args... args);
///@} ///@}
/** @defgroup darray-access acecss methods **/ /** @defgroup darray-access acecss methods **/
@ -125,6 +132,18 @@ namespace xo {
///@} ///@}
}; };
template <typename... Args>
requires (std::same_as<Args, obj<DArray::AGCObject>> && ...)
DArray *
DArray::array(obj<AAllocator> mm, Args... args)
{
DArray * result = empty(mm, sizeof...(args));
if (result) {
(result->push_back(args), ...);
}
return result;
}
} /*namespace scm*/ } /*namespace scm*/
} /*namespace xo*/ } /*namespace xo*/