From 4f9fe856a25ab29345b90e7725509e9ee38a37be Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Wed, 17 Apr 2024 14:19:41 +0200
Subject: Adding upstream version 1.69.0+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 vendor/zerovec-derive/src/make_varule.rs | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'vendor/zerovec-derive/src')

diff --git a/vendor/zerovec-derive/src/make_varule.rs b/vendor/zerovec-derive/src/make_varule.rs
index 7dda4932e..3220b0f8a 100644
--- a/vendor/zerovec-derive/src/make_varule.rs
+++ b/vendor/zerovec-derive/src/make_varule.rs
@@ -115,7 +115,6 @@ pub fn make_varule_impl(attr: AttributeArgs, mut input: DeriveInput) -> TokenStr
     let doc = format!("[`VarULE`](zerovec::ule::VarULE) type for {name}");
     let varule_struct: DeriveInput = parse_quote!(
         #[repr(#repr_attr)]
-        #[derive(PartialEq, Eq)]
         #[doc = #doc]
         #vis struct #ule_name #field_inits #semi
     );
@@ -142,6 +141,19 @@ pub fn make_varule_impl(attr: AttributeArgs, mut input: DeriveInput) -> TokenStr
         input.span(),
     );
 
+    let eq_impl = quote!(
+        impl core::cmp::PartialEq for #ule_name {
+            fn eq(&self, other: &Self) -> bool {
+                // The VarULE invariants allow us to assume that equality is byte equality
+                // in non-safety-critical contexts
+                <Self as zerovec::ule::VarULE>::as_byte_slice(&self)
+                == <Self as zerovec::ule::VarULE>::as_byte_slice(&other)
+            }
+        }
+
+        impl core::cmp::Eq for #ule_name {}
+    );
+
     let zerofrom_fq_path =
         quote!(<#name as zerovec::__zerovec_internal_reexport::ZeroFrom<#ule_name>>);
 
@@ -234,6 +246,8 @@ pub fn make_varule_impl(attr: AttributeArgs, mut input: DeriveInput) -> TokenStr
 
         #maybe_ord_impls
 
+        #eq_impl
+
         #zmkv
 
         #maybe_ser
-- 
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