From 54f1d58a10a3c555c2fba743e25917283dde48c5 Mon Sep 17 00:00:00 2001
From: Christian Vetter <christian.vetter@here.com>
Date: Tue, 3 Aug 2021 08:35:11 +0200
Subject: [PATCH] Fix Debug not being derived for Rust enumerations anymore by
 default

Fixes #2076
---
 src/codegen/mod.rs                            | 5 ++++-
 tests/expectations/tests/enum-default-rust.rs | 2 +-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/codegen/mod.rs b/src/codegen/mod.rs
index 0f3337ac5d..d1e6aba35f 100644
--- a/src/codegen/mod.rs
+++ b/src/codegen/mod.rs
@@ -3000,7 +3000,7 @@ impl CodeGenerator for Enum {
 
         if !variation.is_const() {
             let mut derives = derives_of_item(item, ctx);
-            // For backwards compat, enums always derive Clone/Eq/PartialEq/Hash, even
+            // For backwards compat, enums always derive Debug/Clone/Eq/PartialEq/Hash, even
             // if we don't generate those by default.
             derives.insert(
                 DerivableTraits::CLONE |
@@ -3009,6 +3009,9 @@ impl CodeGenerator for Enum {
                     DerivableTraits::PARTIAL_EQ |
                     DerivableTraits::EQ,
             );
+            if variation.is_rust() {
+                derives.insert(DerivableTraits::DEBUG);
+            }
             let derives: Vec<_> = derives.into();
             attrs.push(attributes::derives(&derives));
         }
diff --git a/tests/expectations/tests/enum-default-rust.rs b/tests/expectations/tests/enum-default-rust.rs
index c47521a29c..4427cad89d 100644
--- a/tests/expectations/tests/enum-default-rust.rs
+++ b/tests/expectations/tests/enum-default-rust.rs
@@ -63,7 +63,7 @@ pub mod Neg {
 }
 #[repr(u32)]
 /// <div rustbindgen nodebug></div>
-#[derive(Copy, Clone, Hash, PartialEq, Eq)]
+#[derive(Debug, Copy, Clone, Hash, PartialEq, Eq)]
 pub enum NoDebug {
     NoDebug1 = 0,
     NoDebug2 = 1,