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Fix casting usize to u8 at pallet::error macro #1

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Fix casting usize to u8 at pallet::error macro #1

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4 changes: 2 additions & 2 deletions substrate/frame/support/procedural/src/pallet/expand/error.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -149,11 +149,11 @@ pub fn expand_error(def: &mut Def) -> proc_macro2::TokenStream {
{
fn from(err: #error_ident<#type_use_gen>) -> Self {
use #frame_support::__private::codec::Encode;
let index = <
let index: u8 = <
<T as #frame_system::Config>::PalletInfo
as #frame_support::traits::PalletInfo
>::index::<Pallet<#type_use_gen>>()
.expect("Every active module has an index in the runtime; qed") as u8;
.expect("Every active module has an index in the runtime; qed").try_into().expect("Index should fit into u8");
let mut encoded = err.encode();
encoded.resize(#frame_support::MAX_MODULE_ERROR_ENCODED_SIZE, 0);

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