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sp-api: Set correct where bound in the generated code (#14252)

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The where bound for the `create_metadata` function wasn't correct. This pr fixes this by using the
where bound declared at the type declaration augmented with the manual where bound.
This commit is contained in:
Bastian Köcher
2023-05-29 11:26:38 +01:00
committed by GitHub
parent ee3f2e1ebd
commit 797e8c08bc
4 changed files with 56 additions and 5 deletions
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substrate/primitives/api/proc-macro/src/runtime_metadata.rs
+8 -5
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@@ -162,15 +162,18 @@ pub fn generate_decl_runtime_metadata(decl: &ItemTrait) -> TokenStream2 {
ty.default = None;
}
let where_clause = where_clause
.iter()
.map(|ty| quote!(#ty: #crate_::scale_info::TypeInfo + 'static));
where_clause
.into_iter()
.map(|ty| parse_quote!(#ty: #crate_::scale_info::TypeInfo + 'static))
.for_each(|w| generics.make_where_clause().predicates.push(w));
let (impl_generics, _, where_clause) = generics.split_for_impl();
quote!(
#( #attrs )*
#[inline(always)]
pub fn runtime_metadata #generics () -> #crate_::metadata_ir::RuntimeApiMetadataIR
where #( #where_clause, )*
pub fn runtime_metadata #impl_generics () -> #crate_::metadata_ir::RuntimeApiMetadataIR
#where_clause
{
#crate_::metadata_ir::RuntimeApiMetadataIR {
name: #trait_name,