[Lldb-commits] [lldb] [lldb][NFCI] Remove the non-const reference Mangled::GetMangledName accessor (PR #161495)

[Michael Buch via lldb-commits]

https://github.com/Michael137 created https://github.com/llvm/llvm-project/pull/161495

We've been seen (very sporadic) lifetime issues around this area. We noticed that `GetMangledName` has two accessors, one of which returns a non-const reference. I audited all the callsites and no users of this overload actually mutate the `ConstString` itself (which is a suspicious thing to do anyway since it's just a wrapper around a `const char*`).

This patch removes the redundant overload.

rdar://161128180

>From bf3f96512240f1387003405544fa081c64a63025 Mon Sep 17 00:00:00 2001
From: Michael Buch <michaelbuch12 at gmail.com>
Date: Wed, 1 Oct 2025 10:18:53 +0100
Subject: [PATCH] [lldb][NFCI] Remove the non-const reference
 Mangled::GetMangledName accessor

We've been seen (very sporadic) lifetime issues around this area. We
noticed that `GetMangledName` has two accessors, one of which returns a
non-const reference. I audited all the callsites and no users of this
overload actually mutate the `ConstString` itself (which is a suspicious
thing to do anyway since it's just a wrapper around a `const char*`).

This patch removes the redundant overload.

rdar://161128180
---
 lldb/include/lldb/Core/Mangled.h | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/lldb/include/lldb/Core/Mangled.h b/lldb/include/lldb/Core/Mangled.h
index 47f1c6a8d80b7..1dcc34b4989dd 100644
--- a/lldb/include/lldb/Core/Mangled.h
+++ b/lldb/include/lldb/Core/Mangled.h
@@ -148,13 +148,7 @@ class Mangled {
   /// Mangled name get accessor.
   ///
   /// \return
-  ///     A reference to the mangled name string object.
-  ConstString &GetMangledName() { return m_mangled; }
-
-  /// Mangled name get accessor.
-  ///
-  /// \return
-  ///     A const reference to the mangled name string object.
+  ///     A the mangled name string object.
   ConstString GetMangledName() const { return m_mangled; }
 
   /// Best name get accessor.