Files
pezkuwi-subxt/core/src/metadata/mod.rs
T
James Wilson 1e111ea9db Make subxt-core ready for publishing (#1508)
* 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
2024-04-15 15:20:11 +01:00

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1.1 KiB
Rust

// Copyright 2019-2024 Parity Technologies (UK) Ltd.
// This file is dual-licensed as Apache-2.0 or GPL-3.0.
// see LICENSE for license details.
//! A [`Metadata`] type, which is used through this crate.
//!
//! This can be decoded from the bytes handed back from a node when asking for metadata.
//!
//! # Examples
//!
//! ```rust
//! use subxt_core::metadata;
//!
//! // We need to fetch the bytes from somewhere, and then we can decode them:
//! let metadata_bytes = include_bytes!("../../../artifacts/polkadot_metadata_small.scale");
//! let metadata = metadata::decode_from(&metadata_bytes[..]).unwrap();
//! ```
mod decode_encode_traits;
mod metadata_type;
use codec::Decode;
pub use decode_encode_traits::{DecodeWithMetadata, EncodeWithMetadata};
pub use metadata_type::Metadata;
/// Attempt to decode some bytes into [`Metadata`], returning an error
/// if decoding fails.
///
/// This is a shortcut for importing [`codec::Decode`] and using the
/// implementation of that on [`Metadata`].
pub fn decode_from(bytes: &[u8]) -> Result<Metadata, codec::Error> {
Metadata::decode(&mut &*bytes)
}