strict_types/typesys/
id.rs

1// Strict encoding schema library, implementing validation and parsing of strict encoded data
2// against a schema.
3//
4// SPDX-License-Identifier: Apache-2.0
5//
6// Designed in 2019-2025 by Dr Maxim Orlovsky <orlovsky@ubideco.org>
7// Written in 2024-2025 by Dr Maxim Orlovsky <orlovsky@ubideco.org>
8//
9// Copyright (C) 2022-2025 Laboratories for Ubiquitous Deterministic Computing (UBIDECO),
10//                         Institute for Distributed and Cognitive Systems (InDCS), Switzerland.
11// Copyright (C) 2022-2025 Dr Maxim Orlovsky.
12// All rights under the above copyrights are reserved.
13//
14// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
15// in compliance with the License. You may obtain a copy of the License at
16//
17//        http://www.apache.org/licenses/LICENSE-2.0
18//
19// Unless required by applicable law or agreed to in writing, software distributed under the License
20// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
21// or implied. See the License for the specific language governing permissions and limitations under
22// the License.
23
24use std::fmt::{self, Display, Formatter};
25use std::str::FromStr;
26
27use amplify::{ByteArray, Bytes32};
28use baid64::{Baid64ParseError, DisplayBaid64, FromBaid64Str};
29use encoding::StrictEncode;
30use sha2::{Digest, Sha256};
31use strict_encoding::STRICT_TYPES_LIB;
32
33use crate::ast::SemCommit;
34use crate::{CommitConsume, TypeSystem};
35
36pub const TYPESYS_ID_TAG: [u8; 32] = *b"urn:ubideco:strict-types:sys:v01";
37
38#[derive(Wrapper, Copy, Clone, Ord, PartialOrd, Eq, PartialEq, Hash, Debug, From)]
39#[wrapper(Deref, BorrowSlice, Hex, Index, RangeOps)]
40#[derive(StrictType, StrictDumb, StrictEncode, StrictDecode)]
41#[strict_type(lib = STRICT_TYPES_LIB)]
42#[cfg_attr(feature = "serde", derive(Serialize, Deserialize), serde(transparent))]
43pub struct TypeSysId(
44    #[from]
45    #[from([u8; 32])]
46    Bytes32,
47);
48
49impl DisplayBaid64 for TypeSysId {
50    const HRI: &'static str = "sts";
51    const CHUNKING: bool = true;
52    const PREFIX: bool = true;
53    const EMBED_CHECKSUM: bool = false;
54    const MNEMONIC: bool = true;
55    fn to_baid64_payload(&self) -> [u8; 32] { self.to_byte_array() }
56}
57impl FromBaid64Str for TypeSysId {}
58impl FromStr for TypeSysId {
59    type Err = Baid64ParseError;
60    fn from_str(s: &str) -> Result<Self, Self::Err> { Self::from_baid64_str(s) }
61}
62impl Display for TypeSysId {
63    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result { self.fmt_baid64(f) }
64}
65
66impl SemCommit for TypeSystem {
67    fn sem_commit(&self, hasher: &mut impl CommitConsume) {
68        hasher.commit_consume(self.len_u24().to_le_bytes());
69        for sem_id in self.keys() {
70            sem_id.sem_commit(hasher);
71        }
72    }
73}
74
75impl TypeSystem {
76    pub fn id(&self) -> TypeSysId {
77        let tag = Sha256::new_with_prefix(TYPESYS_ID_TAG).finalize();
78        let mut hasher = Sha256::new();
79        hasher.commit_consume(tag);
80        hasher.commit_consume(tag);
81        self.sem_commit(&mut hasher);
82        TypeSysId::from_byte_array(hasher.finalize())
83    }
84}
strict_types/typesys/id.rs

strict_types/typesys/
id.rs
