From c6ef5a6d72027e6fe6aa031844d39dc6fb74fc7e Mon Sep 17 00:00:00 2001
From: "Felipe S. S. Schneider" <schneider.felipe.5@gmail.com>
Date: Tue, 5 Mar 2024 12:46:21 -0300
Subject: [PATCH] feat: implement Default for slices and mut slices

This will silently ignore Default derive requests as well.
---
 soa-derive-internal/src/input.rs | 6 ++++--
 soa-derive-internal/src/slice.rs | 2 ++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/soa-derive-internal/src/input.rs b/soa-derive-internal/src/input.rs
index 5b26656..4466696 100644
--- a/soa-derive-internal/src/input.rs
+++ b/soa-derive-internal/src/input.rs
@@ -116,8 +116,10 @@ impl Input {
                     match meta.path.get_ident() {
                         Some(ident) => {
                             assert!(ident != "Copy", "can not derive Copy for SoA vectors");
-                            assert!(ident != "Default", "Default is already derived for SoA vectors");
-                            extra_attrs.add_derive(ident);
+                            if ident != "Default" {
+                                // ignore as Default is already derived for SoA vectors, slices and mut slices
+                                extra_attrs.add_derive(ident);
+                            }
                         }
                         None => {
                             panic!(
diff --git a/soa-derive-internal/src/slice.rs b/soa-derive-internal/src/slice.rs
index 9b7697a..832f163 100644
--- a/soa-derive-internal/src/slice.rs
+++ b/soa-derive-internal/src/slice.rs
@@ -63,6 +63,7 @@ pub fn derive(input: &Input) -> TokenStream {
         #[allow(dead_code)]
         #[derive(Copy, Clone)]
         #(#[#attrs])*
+        #[derive(Default)]
         #visibility struct #slice_name<'a> {
             #(
                 /// slice of `
@@ -337,6 +338,7 @@ pub fn derive_mut(input: &Input) -> TokenStream {
         /// .
         #[allow(dead_code)]
         #(#[#attrs])*
+        #[derive(Default)]
         #visibility struct #slice_mut_name<'a> {
             #(
                 /// slice of `