use crate::pallet::Def;
pub fn expand_genesis_build(def: &mut Def) -> proc_macro2::TokenStream {
let genesis_config = if let Some(genesis_config) = &def.genesis_config {
genesis_config
} else {
return Default::default()
};
let genesis_build = def.genesis_build.as_ref().expect("Checked by def parser");
let frame_support = &def.frame_support;
let type_impl_gen = &genesis_config.gen_kind.type_impl_gen(genesis_build.attr_span);
let gen_cfg_ident = &genesis_config.genesis_config;
let gen_cfg_use_gen = &genesis_config.gen_kind.type_use_gen(genesis_build.attr_span);
let where_clause = &genesis_build.where_clause;
quote::quote_spanned!(genesis_build.attr_span =>
#frame_support::std_enabled! {
impl<#type_impl_gen> #frame_support::sp_runtime::BuildStorage for #gen_cfg_ident<#gen_cfg_use_gen> #where_clause
{
fn assimilate_storage(&self, storage: &mut #frame_support::sp_runtime::Storage) -> std::result::Result<(), std::string::String> {
#frame_support::__private::BasicExternalities::execute_with_storage(storage, || {
self.build();
Ok(())
})
}
}
}
)
}