referrerpolicy=no-referrer-when-downgrade
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161

// This file is part of Substrate.

// Copyright (C) Parity Technologies (UK) Ltd.
// SPDX-License-Identifier: Apache-2.0

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// 	http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

//! Convert the IR to V14 metadata.

use super::types::{
	ExtrinsicMetadataIR, MetadataIR, PalletCallMetadataIR, PalletConstantMetadataIR,
	PalletErrorMetadataIR, PalletEventMetadataIR, PalletMetadataIR, PalletStorageMetadataIR,
	StorageEntryMetadataIR, StorageEntryModifierIR, StorageEntryTypeIR, StorageHasherIR,
	TransactionExtensionMetadataIR,
};

use frame_metadata::v14::{
	ExtrinsicMetadata, PalletCallMetadata, PalletConstantMetadata, PalletErrorMetadata,
	PalletEventMetadata, PalletMetadata, PalletStorageMetadata, RuntimeMetadataV14,
	SignedExtensionMetadata, StorageEntryMetadata, StorageEntryModifier, StorageEntryType,
	StorageHasher,
};

impl From<MetadataIR> for RuntimeMetadataV14 {
	fn from(ir: MetadataIR) -> Self {
		RuntimeMetadataV14::new(
			ir.pallets.into_iter().map(Into::into).collect(),
			ir.extrinsic.into(),
			ir.ty,
		)
	}
}

impl From<PalletMetadataIR> for PalletMetadata {
	fn from(ir: PalletMetadataIR) -> Self {
		PalletMetadata {
			name: ir.name,
			storage: ir.storage.map(Into::into),
			calls: ir.calls.map(Into::into),
			event: ir.event.map(Into::into),
			constants: ir.constants.into_iter().map(Into::into).collect(),
			error: ir.error.map(Into::into),
			index: ir.index,
			// Note: ir.docs not part of v14.
		}
	}
}

impl From<StorageEntryModifierIR> for StorageEntryModifier {
	fn from(ir: StorageEntryModifierIR) -> Self {
		match ir {
			StorageEntryModifierIR::Optional => StorageEntryModifier::Optional,
			StorageEntryModifierIR::Default => StorageEntryModifier::Default,
		}
	}
}

impl From<StorageHasherIR> for StorageHasher {
	fn from(ir: StorageHasherIR) -> Self {
		match ir {
			StorageHasherIR::Blake2_128 => StorageHasher::Blake2_128,
			StorageHasherIR::Blake2_256 => StorageHasher::Blake2_256,
			StorageHasherIR::Blake2_128Concat => StorageHasher::Blake2_128Concat,
			StorageHasherIR::Twox128 => StorageHasher::Twox128,
			StorageHasherIR::Twox256 => StorageHasher::Twox256,
			StorageHasherIR::Twox64Concat => StorageHasher::Twox64Concat,
			StorageHasherIR::Identity => StorageHasher::Identity,
		}
	}
}

impl From<StorageEntryTypeIR> for StorageEntryType {
	fn from(ir: StorageEntryTypeIR) -> Self {
		match ir {
			StorageEntryTypeIR::Plain(ty) => StorageEntryType::Plain(ty),
			StorageEntryTypeIR::Map { hashers, key, value } => StorageEntryType::Map {
				hashers: hashers.into_iter().map(Into::into).collect(),
				key,
				value,
			},
		}
	}
}

impl From<StorageEntryMetadataIR> for StorageEntryMetadata {
	fn from(ir: StorageEntryMetadataIR) -> Self {
		StorageEntryMetadata {
			name: ir.name,
			modifier: ir.modifier.into(),
			ty: ir.ty.into(),
			default: ir.default,
			docs: ir.docs,
		}
	}
}

impl From<PalletStorageMetadataIR> for PalletStorageMetadata {
	fn from(ir: PalletStorageMetadataIR) -> Self {
		PalletStorageMetadata {
			prefix: ir.prefix,
			entries: ir.entries.into_iter().map(Into::into).collect(),
		}
	}
}

impl From<PalletCallMetadataIR> for PalletCallMetadata {
	fn from(ir: PalletCallMetadataIR) -> Self {
		PalletCallMetadata { ty: ir.ty }
	}
}

impl From<PalletEventMetadataIR> for PalletEventMetadata {
	fn from(ir: PalletEventMetadataIR) -> Self {
		PalletEventMetadata { ty: ir.ty }
	}
}

impl From<PalletConstantMetadataIR> for PalletConstantMetadata {
	fn from(ir: PalletConstantMetadataIR) -> Self {
		PalletConstantMetadata { name: ir.name, ty: ir.ty, value: ir.value, docs: ir.docs }
	}
}

impl From<PalletErrorMetadataIR> for PalletErrorMetadata {
	fn from(ir: PalletErrorMetadataIR) -> Self {
		PalletErrorMetadata { ty: ir.ty }
	}
}

impl From<TransactionExtensionMetadataIR> for SignedExtensionMetadata {
	fn from(ir: TransactionExtensionMetadataIR) -> Self {
		SignedExtensionMetadata {
			identifier: ir.identifier,
			ty: ir.ty,
			additional_signed: ir.implicit,
		}
	}
}

impl From<ExtrinsicMetadataIR> for ExtrinsicMetadata {
	fn from(ir: ExtrinsicMetadataIR) -> Self {
		let lowest_supported_version =
			ir.versions.iter().min().expect("Metadata V14 supports one version; qed");

		ExtrinsicMetadata {
			ty: ir.ty,
			version: *lowest_supported_version,
			signed_extensions: ir.extensions.into_iter().map(Into::into).collect(),
		}
	}
}