From 983aa2ec812a9dfc2346d2f3c5ecc824771abe54 Mon Sep 17 00:00:00 2001
From: "Sergey \"Shnatsel\" Davidoff" <shnatsel@gmail.com>
Date: Mon, 13 Jan 2025 19:21:13 +0000
Subject: [PATCH] Add allow() for const impl pattern that causes false
 positives in a rustc lint in derive macros;
 https://github.com/rust-lang/rust/issues/120363

---
 derive/src/command.rs   | 6 ++++++
 derive/src/component.rs | 4 ++++
 derive/src/runnable.rs  | 4 ++++
 3 files changed, 14 insertions(+)

diff --git a/derive/src/command.rs b/derive/src/command.rs
index 78cb6340..8955dff0 100644
--- a/derive/src/command.rs
+++ b/derive/src/command.rs
@@ -9,6 +9,8 @@ pub fn derive_command(s: Structure<'_>) -> TokenStream {
     let subcommand_usage = quote!();
 
     s.gen_impl(quote! {
+        #[allow(unknown_lints)]
+        #[allow(non_local_definitions)]
         gen impl Command for @Self {
             #[doc = "Name of this program as a string"]
             fn name() -> &'static str {
@@ -44,6 +46,8 @@ mod tests {
             expands to {
                 #[allow(non_upper_case_globals)]
                 const _DERIVE_Command_FOR_MyCommand: () = {
+                    #[allow(unknown_lints)]
+                    #[allow(non_local_definitions)]
                     impl Command for MyCommand {
                         #[doc = "Name of this program as a string"]
                         fn name() -> & 'static str {
@@ -79,6 +83,8 @@ mod tests {
             expands to {
                 #[allow(non_upper_case_globals)]
                 const _DERIVE_Command_FOR_MyCommand: () = {
+                    #[allow(unknown_lints)]
+                    #[allow(non_local_definitions)]
                     impl Command for MyCommand {
                         #[doc = "Name of this program as a string"]
                         fn name() -> & 'static str {
diff --git a/derive/src/component.rs b/derive/src/component.rs
index da1deaa6..8ef45d40 100644
--- a/derive/src/component.rs
+++ b/derive/src/component.rs
@@ -13,6 +13,8 @@ pub fn derive_component(s: Structure<'_>) -> TokenStream {
     let dependency_methods = attrs.dependency_methods();
 
     s.gen_impl(quote! {
+        #[allow(unknown_lints)]
+        #[allow(non_local_definitions)]
         gen impl<A> Component<A> for @Self
         where
             A: #abscissa_core::Application
@@ -199,6 +201,8 @@ mod tests {
             expands to {
                 #[allow(non_upper_case_globals)]
                 const _DERIVE_Component_A_FOR_MyComponent: () = {
+                    #[allow(unknown_lints)]
+                    #[allow(non_local_definitions)]
                     impl<A> Component<A> for MyComponent
                     where
                         A: abscissa_core::Application
diff --git a/derive/src/runnable.rs b/derive/src/runnable.rs
index 642560df..2ed23b16 100644
--- a/derive/src/runnable.rs
+++ b/derive/src/runnable.rs
@@ -7,6 +7,8 @@ pub fn derive_runnable(s: synstructure::Structure<'_>) -> proc_macro2::TokenStre
     });
 
     s.gen_impl(quote! {
+        #[allow(unknown_lints)]
+        #[allow(non_local_definitions)]
         gen impl Runnable for @Self {
             fn run(&self) {
                 match *self { #body }
@@ -33,6 +35,8 @@ mod tests {
             expands to {
                 #[allow(non_upper_case_globals)]
                 const _DERIVE_Runnable_FOR_MyRunnable: () = {
+                    #[allow(unknown_lints)]
+                    #[allow(non_local_definitions)]
                     impl Runnable for MyRunnable {
                         fn run(&self) {
                             match *self {