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Implement StorageNMap (#8635)

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* Implement StorageNMap

* Change copyright date to 2021

* Rewrite keys to use impl_for_tuples instead of recursion

* Implement prefix iteration on StorageNMap

* Implement EncodeLike for key arguments

* Rename KeyGenerator::Arg to KeyGenerator::KArg

* Support StorageNMap in decl_storage and #[pallet::storage] macros

* Use StorageNMap in assets pallet

* Support migrate_keys in StorageNMap

* Reduce line characters on select files

* Refactor crate imports in decl_storage macros

* Some more line char reductions and doc comment update

* Update UI test expectations

* Revert whitespace changes to untouched files

* Generate Key struct instead of a 1-tuple when only 1 pair of key and hasher is provided

* Revert formatting changes to unrelated files

* Introduce KeyGeneratorInner

* Add tests for StorageNMap in FRAMEv2 pallet macro

* Small fixes to unit tests for StorageNMap

* Bump runtime metadata version

* Remove unused import

* Update tests to use runtime metadata v13

* Introduce and use EncodeLikeTuple as a trait bound for KArg

* Add some rustdocs

* Revert usage of StorageNMap in assets pallet

* Make use of ext::PunctuatedTrailing

* Add rustdoc for final_hash

* Fix StorageNMap proc macro expansions for single key cases

* Create associated const in KeyGenerator for hasher metadata

* Refactor code according to comments from Basti

* Add module docs for generator/nmap.rs

* Re-export storage::Key as NMapKey in pallet prelude

* Seal the EncodeLikeTuple trait

* Extract sealing code out of key.rs

Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
This commit is contained in:
Keith Yeung
2021-05-14 02:44:29 -07:00
committed by GitHub
parent c6b1240e51
commit 033d8289f0
26 changed files with 3210 additions and 50 deletions
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substrate/frame/support/procedural/src/storage/getters.rs
+17 -1
View File
@@ -21,7 +21,8 @@ use proc_macro2::TokenStream;
use quote::quote;
use super::{DeclStorageDefExt, StorageLineTypeDef};
pub fn impl_getters(scrate: &TokenStream, def: &DeclStorageDefExt) -> TokenStream {
pub fn impl_getters(def: &DeclStorageDefExt) -> TokenStream {
let scrate = &def.hidden_crate;
let mut getters = TokenStream::new();
for (get_fn, line) in def.storage_lines.iter()
@@ -65,6 +66,21 @@ pub fn impl_getters(scrate: &TokenStream, def: &DeclStorageDefExt) -> TokenStrea
}
}
},
StorageLineTypeDef::NMap(map) => {
let keygen = map.to_keygen_struct(&def.hidden_crate);
let value = &map.value;
quote!{
pub fn #get_fn<KArg>(key: KArg) -> #value
where
KArg: #scrate::storage::types::EncodeLikeTuple<
<#keygen as #scrate::storage::types::KeyGenerator>::KArg
>
+ #scrate::storage::types::TupleToEncodedIter,
{
<#storage_struct as #scrate::#storage_trait>::get(key)
}
}
}
};
getters.extend(getter);
}