From a525f090087398fac2b42876fd7f0f658f4d4d1a Mon Sep 17 00:00:00 2001
From: Micha Reiser <micha@reiser.io>
Date: Fri, 20 Oct 2023 09:12:27 +0900
Subject: [PATCH] Add `#[automatically_derived]` to derived impls (#8080)

---
 crates/ruff_macros/src/cache_key.rs       | 1 +
 crates/ruff_macros/src/combine_options.rs | 1 +
 crates/ruff_macros/src/config.rs          | 1 +
 crates/ruff_macros/src/rule_namespace.rs  | 1 +
 crates/ruff_macros/src/violation.rs       | 2 ++
 5 files changed, 6 insertions(+)

diff --git a/crates/ruff_macros/src/cache_key.rs b/crates/ruff_macros/src/cache_key.rs
index 4093b96a3f549..6519982950a7d 100644
--- a/crates/ruff_macros/src/cache_key.rs
+++ b/crates/ruff_macros/src/cache_key.rs
@@ -101,6 +101,7 @@ pub(crate) fn derive_cache_key(item: &DeriveInput) -> syn::Result<TokenStream> {
     let (impl_generics, ty_generics, where_clause) = &item.generics.split_for_impl();
 
     Ok(quote!(
+        #[automatically_derived]
         impl #impl_generics ruff_cache::CacheKey for #name #ty_generics #where_clause {
             fn cache_key(&self, key: &mut ruff_cache::CacheKeyHasher) {
                 use std::hash::Hasher;
diff --git a/crates/ruff_macros/src/combine_options.rs b/crates/ruff_macros/src/combine_options.rs
index ea63a1b91467f..05b2395e072bf 100644
--- a/crates/ruff_macros/src/combine_options.rs
+++ b/crates/ruff_macros/src/combine_options.rs
@@ -16,6 +16,7 @@ pub(crate) fn derive_impl(input: DeriveInput) -> syn::Result<proc_macro2::TokenS
                 .collect::<Result<Vec<_>, _>>()?;
 
             Ok(quote! {
+                #[automatically_derived]
                 impl crate::configuration::CombinePluginOptions for #ident {
                     fn combine(self, other: Self) -> Self {
                         #[allow(deprecated)]
diff --git a/crates/ruff_macros/src/config.rs b/crates/ruff_macros/src/config.rs
index 50227ae8b01c2..b069dfc063c96 100644
--- a/crates/ruff_macros/src/config.rs
+++ b/crates/ruff_macros/src/config.rs
@@ -87,6 +87,7 @@ pub(crate) fn derive_impl(input: DeriveInput) -> syn::Result<TokenStream> {
             };
 
             Ok(quote! {
+                #[automatically_derived]
                 impl crate::options_base::OptionsMetadata for #ident {
                     fn record(visit: &mut dyn crate::options_base::Visit) {
                         #(#output);*
diff --git a/crates/ruff_macros/src/rule_namespace.rs b/crates/ruff_macros/src/rule_namespace.rs
index 79ae54c19d1aa..8d573d84b43c4 100644
--- a/crates/ruff_macros/src/rule_namespace.rs
+++ b/crates/ruff_macros/src/rule_namespace.rs
@@ -111,6 +111,7 @@ pub(crate) fn derive_impl(input: DeriveInput) -> syn::Result<proc_macro2::TokenS
     }
 
     Ok(quote! {
+        #[automatically_derived]
         impl crate::registry::RuleNamespace for #ident {
             fn parse_code(code: &str) -> Option<(Self, &str)> {
                 #if_statements
diff --git a/crates/ruff_macros/src/violation.rs b/crates/ruff_macros/src/violation.rs
index 0f39001b1a57b..028a5e5a41330 100644
--- a/crates/ruff_macros/src/violation.rs
+++ b/crates/ruff_macros/src/violation.rs
@@ -53,6 +53,7 @@ pub(crate) fn violation(violation: &ItemStruct) -> Result<TokenStream> {
             #[derive(Debug, PartialEq, Eq)]
             #violation
 
+            #[automatically_derived]
             impl From<#ident> for ruff_diagnostics::DiagnosticKind {
                 fn from(value: #ident) -> Self {
                     use ruff_diagnostics::Violation;
@@ -76,6 +77,7 @@ pub(crate) fn violation(violation: &ItemStruct) -> Result<TokenStream> {
                 }
             }
 
+            #[automatically_derived]
             impl From<#ident> for ruff_diagnostics::DiagnosticKind {
                 fn from(value: #ident) -> Self {
                     use ruff_diagnostics::Violation;