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Introduce Metadata type (#974)

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* WIP new Metadata type

* Finish basic Metadata impl inc hashing and validation

* remove caching from metadata; can add that higher up

* remove caches

* update retain to use Metadata

* clippy fixes

* update codegen to use Metadata

* clippy

* WIP fixing subxt lib

* WIP fixing tests, rebuild artifacts, fix OrderedMap::retain

* get --all-targets compiling

* move DispatchError type lookup back to being optional

* cargo clippy

* fix docs

* re-use VariantIndex to get variants

* add docs and enforce docs on metadata crate

* fix docs

* add test and fix docs

* cargo fmt

* address review comments

* update lockfiles

* ExactSizeIter so we can ask for len() of things (and hopefully soon is_empty()
This commit is contained in:
James Wilson
2023-05-25 10:35:21 +01:00
committed by GitHub
parent f344d0dd4d
commit b9f5419095
64 changed files with 6818 additions and 5719 deletions
Download Patch File Download Diff File Expand all files Collapse all files
subxt/src/constants/constants_client.rs
+19 -12
View File
@@ -5,8 +5,8 @@
use super::ConstantAddress;
use crate::{
client::OfflineClientT,
error::Error,
metadata::{DecodeWithMetadata, MetadataError},
error::{Error, MetadataError},
metadata::DecodeWithMetadata,
Config,
};
use derivative::Derivative;
@@ -39,13 +39,14 @@ impl<T: Config, Client: OfflineClientT<T>> ConstantsClient<T, Client> {
let expected_hash = self
.client
.metadata()
.constant_hash(address.pallet_name(), address.constant_name())?;
.pallet_by_name(address.pallet_name())
.ok_or_else(|| MetadataError::PalletNameNotFound(address.pallet_name().to_owned()))?
.constant_hash(address.constant_name())
.ok_or_else(|| {
MetadataError::ConstantNameNotFound(address.constant_name().to_owned())
})?;
if actual_hash != expected_hash {
return Err(MetadataError::IncompatibleConstantMetadata(
address.pallet_name().into(),
address.constant_name().into(),
)
.into());
return Err(MetadataError::IncompatibleCodegen.into());
}
}
Ok(())
@@ -64,11 +65,17 @@ impl<T: Config, Client: OfflineClientT<T>> ConstantsClient<T, Client> {
self.validate(address)?;
// 2. Attempt to decode the constant into the type given:
let pallet = metadata.pallet(address.pallet_name())?;
let constant = pallet.constant(address.constant_name())?;
let pallet = metadata
.pallet_by_name(address.pallet_name())
.ok_or_else(|| MetadataError::PalletNameNotFound(address.pallet_name().to_owned()))?;
let constant = pallet
.constant_by_name(address.constant_name())
.ok_or_else(|| {
MetadataError::ConstantNameNotFound(address.constant_name().to_owned())
})?;
let value = <Address::Target as DecodeWithMetadata>::decode_with_metadata(
&mut &*constant.value,
constant.ty.id,
&mut constant.value(),
constant.ty(),
&metadata,
)?;
Ok(value)