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pallet macro: allow to declare individual unbounded storage for those who cannot go into PoV (#9670)

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* allow unbounded individual storage

* better doc

* fix UI tests

* update doc

* Update frame/support/procedural/src/pallet/parse/storage.rs

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>

Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
This commit is contained in:
Guillaume Thiolliere
2021-09-27 10:25:24 +02:00
committed by GitHub
parent d565382b50
commit 1ebcbe1c34
7 changed files with 106 additions and 44 deletions
Download Patch File Download Diff File Expand all files Collapse all files
substrate/frame/support/procedural/src/pallet/expand/pallet_struct.rs
+30 -19
View File
@@ -98,28 +98,39 @@ pub fn expand_pallet_struct(def: &mut Def) -> proc_macro2::TokenStream {
)
};
// Depending on the flag `generate_storage_info` we use partial or full storage info from
// storage.
let (storage_info_span, storage_info_trait, storage_info_method) =
if let Some(span) = def.pallet_struct.generate_storage_info {
(
span,
quote::quote_spanned!(span => StorageInfoTrait),
quote::quote_spanned!(span => storage_info),
)
} else {
let span = def.pallet_struct.attr_span;
(
span,
quote::quote_spanned!(span => PartialStorageInfoTrait),
quote::quote_spanned!(span => partial_storage_info),
)
};
let storage_info_span =
def.pallet_struct.generate_storage_info.unwrap_or(def.pallet_struct.attr_span);
let storage_names = &def.storages.iter().map(|storage| &storage.ident).collect::<Vec<_>>();
let storage_cfg_attrs =
&def.storages.iter().map(|storage| &storage.cfg_attrs).collect::<Vec<_>>();
// Depending on the flag `generate_storage_info` and the storage attribute `unbounded`, we use
// partial or full storage info from storage.
let storage_info_traits = &def
.storages
.iter()
.map(|storage| {
if storage.unbounded || def.pallet_struct.generate_storage_info.is_none() {
quote::quote_spanned!(storage_info_span => PartialStorageInfoTrait)
} else {
quote::quote_spanned!(storage_info_span => StorageInfoTrait)
}
})
.collect::<Vec<_>>();
let storage_info_methods = &def
.storages
.iter()
.map(|storage| {
if storage.unbounded || def.pallet_struct.generate_storage_info.is_none() {
quote::quote_spanned!(storage_info_span => partial_storage_info)
} else {
quote::quote_spanned!(storage_info_span => storage_info)
}
})
.collect::<Vec<_>>();
let storage_info = quote::quote_spanned!(storage_info_span =>
impl<#type_impl_gen> #frame_support::traits::StorageInfoTrait
for #pallet_ident<#type_use_gen>
@@ -136,8 +147,8 @@ pub fn expand_pallet_struct(def: &mut Def) -> proc_macro2::TokenStream {
{
let mut storage_info = <
#storage_names<#type_use_gen>
as #frame_support::traits::#storage_info_trait
>::#storage_info_method();
as #frame_support::traits::#storage_info_traits
>::#storage_info_methods();
res.append(&mut storage_info);
}
)*