From 8d0af9a0e352dd4ed143352db74d458c6a297c41 Mon Sep 17 00:00:00 2001
From: Roland Conybeare <rconybeare@gmail.com>
Date: Fri, 12 Dec 2025 14:40:16 -0500
Subject: [PATCH] xo-alloc2: make AAllocator.name() -> string_view

---
 xo-alloc2/include/xo/alloc2/AAllocator.hpp        | 2 +-
 xo-alloc2/include/xo/alloc2/IAllocator_Any.hpp    | 2 +-
 xo-alloc2/include/xo/alloc2/IAllocator_DArena.hpp | 2 +-
 xo-alloc2/include/xo/alloc2/IAllocator_Xfer.hpp   | 2 +-
 xo-alloc2/include/xo/alloc2/RAllocator.hpp        | 2 +-
 xo-alloc2/src/alloc2/IAllocator_DArena.cpp        | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/xo-alloc2/include/xo/alloc2/AAllocator.hpp b/xo-alloc2/include/xo/alloc2/AAllocator.hpp
index d2903d9d..38c545f8 100644
--- a/xo-alloc2/include/xo/alloc2/AAllocator.hpp
+++ b/xo-alloc2/include/xo/alloc2/AAllocator.hpp
@@ -89,7 +89,7 @@ namespace xo {
             /** optional name for allocator @p d
              *  Labeling, for diagnostics.
              **/
-            virtual const std::string & name(Copaque d) const noexcept = 0;
+            virtual std::string_view name(Copaque d) const noexcept = 0;
             /** reserved size in bytes for allocator @p d.
              *  Includes committed + uncommitted memory.
              *  Cannot be increased.
diff --git a/xo-alloc2/include/xo/alloc2/IAllocator_Any.hpp b/xo-alloc2/include/xo/alloc2/IAllocator_Any.hpp
index d0caa3a9..c4cf1b99 100644
--- a/xo-alloc2/include/xo/alloc2/IAllocator_Any.hpp
+++ b/xo-alloc2/include/xo/alloc2/IAllocator_Any.hpp
@@ -31,7 +31,7 @@ namespace xo {
             // from AAllocator
             int32_t _typeseq() const noexcept  override { return s_typeseq; }
 
-            [[noreturn]] const std::string &  name(Copaque) const noexcept override { _fatal(); }
+            [[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(); }
diff --git a/xo-alloc2/include/xo/alloc2/IAllocator_DArena.hpp b/xo-alloc2/include/xo/alloc2/IAllocator_DArena.hpp
index ad573879..15a9c9ff 100644
--- a/xo-alloc2/include/xo/alloc2/IAllocator_DArena.hpp
+++ b/xo-alloc2/include/xo/alloc2/IAllocator_DArena.hpp
@@ -30,7 +30,7 @@ namespace xo {
         struct IAllocator_DArena {
             using size_type = std::size_t;
 
-            static const std::string & name(const DArena &) noexcept;
+            static std::string_view name(const DArena &) noexcept;
             static size_type reserved(const DArena &) noexcept;
             static size_type size(const DArena &) noexcept;
             static size_type committed(const DArena &) noexcept;
diff --git a/xo-alloc2/include/xo/alloc2/IAllocator_Xfer.hpp b/xo-alloc2/include/xo/alloc2/IAllocator_Xfer.hpp
index 54a69153..be5f2157 100644
--- a/xo-alloc2/include/xo/alloc2/IAllocator_Xfer.hpp
+++ b/xo-alloc2/include/xo/alloc2/IAllocator_Xfer.hpp
@@ -28,7 +28,7 @@ namespace xo {
             // const methods
 
             int32_t _typeseq() const noexcept override { return s_typeseq; }
-            const std::string & name(Copaque d) const noexcept override { return I::name(_dcast(d)); }
+            std::string_view    name(Copaque d) const noexcept override { return I::name(_dcast(d)); }
             size_type       reserved(Copaque d) const noexcept override { return I::reserved(_dcast(d)); }
             size_type           size(Copaque d) const noexcept override { return I::size(_dcast(d)); }
             size_type      committed(Copaque d) const noexcept override { return I::committed(_dcast(d)); }
diff --git a/xo-alloc2/include/xo/alloc2/RAllocator.hpp b/xo-alloc2/include/xo/alloc2/RAllocator.hpp
index e95c7bcd..32e58e66 100644
--- a/xo-alloc2/include/xo/alloc2/RAllocator.hpp
+++ b/xo-alloc2/include/xo/alloc2/RAllocator.hpp
@@ -23,7 +23,7 @@ namespace xo {
             RAllocator(Object::DataPtr data) : Object{std::move(data)} {}
 
             int32_t _typeseq() const { return O::iface()->_typeseq(); }
-            const std::string & name() const { return O::iface()->name(O::data()); }
+            std::string_view name() const { return O::iface()->name(O::data()); }
             size_type reserved() const { return O::iface()->reserved(O::data()); }
             size_type size() const { return O::iface()->size(O::data()); }
             size_type committed() const { return O::iface()->committed(O::data()); }
diff --git a/xo-alloc2/src/alloc2/IAllocator_DArena.cpp b/xo-alloc2/src/alloc2/IAllocator_DArena.cpp
index dbf708b0..cd3ec546 100644
--- a/xo-alloc2/src/alloc2/IAllocator_DArena.cpp
+++ b/xo-alloc2/src/alloc2/IAllocator_DArena.cpp
@@ -16,7 +16,7 @@ namespace xo {
 
     namespace mm {
 
-        const std::string &
+        std::string_view
         IAllocator_DArena::name(const DArena & s) noexcept {
             return s.config_.name_;
         }