pezkuwi_subxt_metadata/from/
mod.rs

1// Copyright 2019-2025 Parity Technologies (UK) Ltd.
2// This file is dual-licensed as Apache-2.0 or GPL-3.0.
3// see LICENSE for license details.
4
5use alloc::string::String;
6use thiserror::Error as DeriveError;
7mod v14;
8mod v15;
9mod v16;
10
11/// Legacy translation hidden behind the corresponding feature flag.
12#[cfg(feature = "legacy")]
13pub mod legacy;
14
15/// The metadata versions that we support converting into [`crate::Metadata`].
16/// These are ordest from highest to lowest, so that the metadata we'd want to
17/// pick first is first in the array.
18pub const SUPPORTED_METADATA_VERSIONS: [u32; 3] = [16, 15, 14];
19
20/// An error emitted if something goes wrong converting [`frame_metadata`]
21/// types into [`crate::Metadata`].
22#[derive(Debug, PartialEq, Eq, DeriveError)]
23#[non_exhaustive]
24pub enum TryFromError {
25	/// Type missing from type registry
26	#[error("Type id {0} is expected but not found in the type registry")]
27	TypeNotFound(u32),
28	/// Type was not a variant/enum type
29	#[error("Type {0} was not a variant/enum type, but is expected to be one")]
30	VariantExpected(u32),
31	/// An unsupported metadata version was provided.
32	#[error("Cannot convert v{0} metadata into Metadata type")]
33	UnsupportedMetadataVersion(u32),
34	/// Type name missing from type registry
35	#[error("Type name {0} is expected but not found in the type registry")]
36	TypeNameNotFound(String),
37	/// Invalid type path.
38	#[error("Type has an invalid path {0}")]
39	InvalidTypePath(String),
40	/// Cannot decode storage entry information.
41	#[error("Error decoding storage entry information: {0}")]
42	StorageInfoError(#[from] frame_decode::storage::StorageInfoError<'static>),
43	/// Cannot decode Runtime API information.
44	#[error("Error decoding Runtime API information: {0}")]
45	RuntimeInfoError(#[from] frame_decode::runtime_apis::RuntimeApiInfoError<'static>),
46	/// Cannot decode View Function information.
47	#[error("Error decoding View Function information: {0}")]
48	ViewFunctionInfoError(#[from] frame_decode::view_functions::ViewFunctionInfoError<'static>),
49}
50
51impl TryFrom<frame_metadata::RuntimeMetadataPrefixed> for crate::Metadata {
52	type Error = TryFromError;
53
54	fn try_from(value: frame_metadata::RuntimeMetadataPrefixed) -> Result<Self, Self::Error> {
55		match value.1 {
56			frame_metadata::RuntimeMetadata::V0(_) => {
57				Err(TryFromError::UnsupportedMetadataVersion(0))
58			},
59			frame_metadata::RuntimeMetadata::V1(_) => {
60				Err(TryFromError::UnsupportedMetadataVersion(1))
61			},
62			frame_metadata::RuntimeMetadata::V2(_) => {
63				Err(TryFromError::UnsupportedMetadataVersion(2))
64			},
65			frame_metadata::RuntimeMetadata::V3(_) => {
66				Err(TryFromError::UnsupportedMetadataVersion(3))
67			},
68			frame_metadata::RuntimeMetadata::V4(_) => {
69				Err(TryFromError::UnsupportedMetadataVersion(4))
70			},
71			frame_metadata::RuntimeMetadata::V5(_) => {
72				Err(TryFromError::UnsupportedMetadataVersion(5))
73			},
74			frame_metadata::RuntimeMetadata::V6(_) => {
75				Err(TryFromError::UnsupportedMetadataVersion(6))
76			},
77			frame_metadata::RuntimeMetadata::V7(_) => {
78				Err(TryFromError::UnsupportedMetadataVersion(7))
79			},
80			frame_metadata::RuntimeMetadata::V8(_) => {
81				Err(TryFromError::UnsupportedMetadataVersion(8))
82			},
83			frame_metadata::RuntimeMetadata::V9(_) => {
84				Err(TryFromError::UnsupportedMetadataVersion(9))
85			},
86			frame_metadata::RuntimeMetadata::V10(_) => {
87				Err(TryFromError::UnsupportedMetadataVersion(10))
88			},
89			frame_metadata::RuntimeMetadata::V11(_) => {
90				Err(TryFromError::UnsupportedMetadataVersion(11))
91			},
92			frame_metadata::RuntimeMetadata::V12(_) => {
93				Err(TryFromError::UnsupportedMetadataVersion(12))
94			},
95			frame_metadata::RuntimeMetadata::V13(_) => {
96				Err(TryFromError::UnsupportedMetadataVersion(13))
97			},
98			frame_metadata::RuntimeMetadata::V14(m) => m.try_into(),
99			frame_metadata::RuntimeMetadata::V15(m) => m.try_into(),
100			frame_metadata::RuntimeMetadata::V16(m) => m.try_into(),
101		}
102	}
103}
pezkuwi_subxt_metadata/from/mod.rs

pezkuwi_subxt_metadata/from/
mod.rs
