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xo-alloc2: header reorg redux

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Roland Conybeare 2025-12-14 17:16:05 -05:00
commit fa32a95be5
14 changed files with 18 additions and 13 deletions
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include/xo/alloc2/alloc/IAllocator_Any.hpp Normal file
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/** @file IAllocator_Any.hpp
*
* @author Roland Conybeare, Dec 2025
**/
#pragma once
#include "AAllocator.hpp"
#include <cassert>
namespace xo {
namespace mm { struct IAllocator_Any; }
namespace facet {
template <>
struct FacetImplementation<xo::mm::AAllocator, DVariantPlaceholder> {
using ImplType = xo::mm::IAllocator_Any;
};
}
namespace mm {
/** @class IAllocator_Any
* @brief Allocator implementation for empty variant instance.
**/
struct IAllocator_Any : public AAllocator {
//using Impl = IAllocator_ImplType<xo::facet::DVariantPlaceholder>;
using size_type = std::size_t;
const AAllocator * iface() const { return std::launder(this); }
// from AAllocator
int32_t _typeseq() const noexcept override { return s_typeseq; }
// const methods
[[noreturn]] std::string_view name(Copaque) const noexcept override { _fatal(); }
[[noreturn]] size_type reserved(Copaque) const noexcept override { _fatal(); }
[[noreturn]] size_type size(Copaque) const noexcept override { _fatal(); }
[[noreturn]] size_type committed(Copaque) const noexcept override { _fatal(); }
[[noreturn]] size_type available(Copaque) const noexcept override { _fatal(); }
[[noreturn]] size_type allocated(Copaque) const noexcept override { _fatal(); }
[[noreturn]] bool contains(Copaque, const void *) const noexcept override { _fatal(); }
[[noreturn]] AllocatorError last_error(Copaque) const noexcept override { _fatal(); }
// non-const methods
[[noreturn]] bool expand(Opaque, std::size_t) const noexcept override { _fatal(); }
[[noreturn]] value_type alloc(Opaque, std::size_t) const override { _fatal(); }
[[noreturn]] value_type super_alloc(Opaque, std::size_t) const override { _fatal(); }
[[noreturn]] value_type sub_alloc(Opaque, std::size_t, bool) const override { _fatal(); }
[[noreturn]] void clear(Opaque) const override { _fatal(); }
[[noreturn]] void destruct_data(Opaque) const override { _fatal(); }
private:
[[noreturn]] static void _fatal();
public:
static int32_t s_typeseq;
static bool _valid;
};
}
}
/* end IAllocator_Any.hpp */