mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-30 13:07:56 +00:00
James Wilson
1e111ea9db
* Move Extrinsic decoding things to subxt_core and various tidy-ups * A couple more fixes and fmt * first pass moving tx logic to subxt_core * cargo fmt * fix wasm example * clippy * more clippy * WIP Adding examples and such * Move storage functionality more fully to subxt_core and nice examples for storage and txs * Add example for events * consistify how addresses/payloads are exposed in subxt-core and add runtime API fns * Add runtime API core example * fmt * remove scale-info patch * Add a little to the top level docs * swap args around * clippy * cargo fmt and fix wasm-example * doc fixes * no-std-ise new subxt-core additions * alloc, not core * more no-std fixes * A couple more fixes * Add back extrinsic decode test
44 lines
1.8 KiB
Rust
44 lines
1.8 KiB
Rust
// Copyright 2019-2023 Parity Technologies (UK) Ltd.
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// This file is dual-licensed as Apache-2.0 or GPL-3.0.
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// see LICENSE for license details.
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use crate::{client::OfflineClientT, error::Error, Config};
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use derive_where::derive_where;
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use subxt_core::constants::address::AddressT;
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/// A client for accessing constants.
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#[derive_where(Clone; Client)]
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pub struct ConstantsClient<T, Client> {
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client: Client,
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_marker: std::marker::PhantomData<T>,
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}
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impl<T, Client> ConstantsClient<T, Client> {
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/// Create a new [`ConstantsClient`].
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pub fn new(client: Client) -> Self {
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Self {
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client,
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_marker: std::marker::PhantomData,
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}
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}
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}
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impl<T: Config, Client: OfflineClientT<T>> ConstantsClient<T, Client> {
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/// Run the validation logic against some constant address you'd like to access. Returns `Ok(())`
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/// if the address is valid (or if it's not possible to check since the address has no validation hash).
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/// Return an error if the address was not valid or something went wrong trying to validate it (ie
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/// the pallet or constant in question do not exist at all).
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pub fn validate<Address: AddressT>(&self, address: &Address) -> Result<(), Error> {
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let metadata = self.client.metadata();
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subxt_core::constants::validate(address, &metadata).map_err(Error::from)
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}
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/// Access the constant at the address given, returning the type defined by this address.
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/// This is probably used with addresses given from static codegen, although you can manually
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/// construct your own, too.
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pub fn at<Address: AddressT>(&self, address: &Address) -> Result<Address::Target, Error> {
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let metadata = self.client.metadata();
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subxt_core::constants::get(address, &metadata).map_err(Error::from)
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}
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}
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