chore(versionable): add automatically_derived attribute

For the generated code

Author: nsarlin-zama

utils/tfhe-versionable-derive/src/associated.rs

@@ -27,6 +27,7 @@ pub(crate) fn generate_from_trait_impl(
 ) -> syn::Result<ItemImpl> {
     let from_variable = Ident::new(from_variable_name, Span::call_site());
     Ok(parse_quote! {
+        #[automatically_derived]
         impl #impl_generics From<#src> for #dest #where_clause {
             fn from(#from_variable: #src) -> Self {
                 #constructor
@@ -55,6 +56,7 @@ pub(crate) fn generate_try_from_trait_impl(
 ) -> syn::Result<ItemImpl> {
     let from_variable = Ident::new(from_variable_name, Span::call_site());
     Ok(parse_quote! {
+        #[automatically_derived]
         impl #impl_generics TryFrom<#src> for #dest #where_clause {
             type Error = #error;
             fn try_from(#from_variable: #src) -> Result<Self, Self::Error> {

utils/tfhe-versionable-derive/src/dispatch_type.rs

@@ -95,6 +95,7 @@ impl AssociatedType for DispatchType {
             ident: self.ident(),
             generics: self.generics()?,
             variants: variants?,
+            attrs: vec![parse_quote! { #[automatically_derived] }],
             ..self.orig_type.clone()
         }
         .into())

utils/tfhe-versionable-derive/src/lib.rs

@@ -83,6 +83,8 @@ fn impl_version_trait(input: &DeriveInput) -> proc_macro2::TokenStream {
     quote! {
         const _: () = {
             #version_types
+
+            #[automatically_derived]
             #version_impl
         };
     }
@@ -116,6 +118,8 @@ pub fn derive_versions_dispatch(input: TokenStream) -> TokenStream {
     quote! {
         const _: () = {
             #dispatch_types
+
+            #[automatically_derived]
             #dispatch_impl
         };
     }
@@ -238,6 +242,7 @@ pub fn derive_versionize(input: TokenStream) -> TokenStream {
     quote! {
         #version_trait_impl
 
+        #[automatically_derived]
         impl #versionize_impl_generics #versionize_trait for #input_ident #ty_generics
         #versionize_where_clause
         {
@@ -253,12 +258,13 @@ pub fn derive_versionize(input: TokenStream) -> TokenStream {
                 #versionize_body
             }
 
-        type VersionedOwned =
+            type VersionedOwned =
             <#dispatch_enum_path #dispatch_generics as
             #dispatch_trait<#dispatch_target>>::Owned #owned_where_clause;
 
         }
 
+        #[automatically_derived]
         impl #unversionize_impl_generics #unversionize_trait for #input_ident #ty_generics
         #unversionize_where_clause
         {
@@ -267,6 +273,7 @@ pub fn derive_versionize(input: TokenStream) -> TokenStream {
             }
         }
 
+        #[automatically_derived]
         impl #versionize_vec_impl_generics #versionize_vec_trait for #input_ident #ty_generics
         #versionize_vec_where_clause
         {
@@ -283,6 +290,7 @@ pub fn derive_versionize(input: TokenStream) -> TokenStream {
             }
         }
 
+        #[automatically_derived]
         impl #unversionize_vec_impl_generics #unversionize_vec_trait for #input_ident #ty_generics
         #unversionize_vec_where_clause {
             fn unversionize_vec(versioned: Self::VersionedVec) -> Result<Vec<Self>, #unversionize_error> {
@@ -318,6 +326,7 @@ pub fn derive_not_versioned(input: TokenStream) -> TokenStream {
     let lifetime = Lifetime::new(LIFETIME_NAME, Span::call_site());
 
     quote! {
+        #[automatically_derived]
         impl #impl_generics #versionize_trait for #input_ident #ty_generics #where_clause {
             type Versioned<#lifetime> = &#lifetime Self;
             type VersionedOwned = Self;
@@ -331,12 +340,14 @@ pub fn derive_not_versioned(input: TokenStream) -> TokenStream {
             }
         }
 
+        #[automatically_derived]
         impl #impl_generics #unversionize_trait for #input_ident #ty_generics #where_clause {
             fn unversionize(versioned: Self::VersionedOwned) -> Result<Self, #unversionize_error> {
                 Ok(versioned)
             }
         }
 
+        #[automatically_derived]
         impl NotVersioned for #input_ident #ty_generics #where_clause {}
 
     }

utils/tfhe-versionable-derive/src/version_type.rs

@@ -6,9 +6,9 @@ use syn::punctuated::Punctuated;
 use syn::spanned::Spanned;
 use syn::token::Comma;
 use syn::{
-    parse_quote, Data, DataEnum, DataStruct, DataUnion, DeriveInput, Field, Fields, FieldsNamed,
-    FieldsUnnamed, Generics, Ident, Item, ItemEnum, ItemImpl, ItemStruct, ItemUnion, Lifetime,
-    Path, Type, Variant,
+    parse_quote, Attribute, Data, DataEnum, DataStruct, DataUnion, DeriveInput, Field, Fields,
+    FieldsNamed, FieldsUnnamed, Generics, Ident, Item, ItemEnum, ItemImpl, ItemStruct, ItemUnion,
+    Lifetime, Path, Type, Variant,
 };
 
 use crate::associated::{
@@ -230,7 +230,7 @@ impl VersionType {
             fields,
             ident: self.ident(),
             vis: self.orig_type.vis.clone(),
-            attrs: Vec::new(),
+            attrs: vec![parse_quote! { #[automatically_derived] }],
             generics: self.type_generics()?,
             struct_token: stru.struct_token,
             semi_token: stru.semi_token,
@@ -257,7 +257,7 @@ impl VersionType {
         let versioned_enu = ItemEnum {
             ident: self.ident(),
             vis: self.orig_type.vis.clone(),
-            attrs: Vec::new(),
+            attrs: vec![parse_quote! { #[automatically_derived] }],
             generics: self.type_generics()?,
             enum_token: enu.enum_token,
             brace_token: enu.brace_token,
@@ -275,7 +275,7 @@ impl VersionType {
             fields,
             ident: self.ident(),
             vis: self.orig_type.vis.clone(),
-            attrs: Vec::new(),
+            attrs: vec![parse_quote! { #[automatically_derived] }],
             generics: self.type_generics()?,
             union_token: uni.union_token,
         };