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
#![cfg_attr(not(feature = "std"), no_std)]
#![cfg_attr(feature = "pwasm", feature(alloc))]
#[cfg(feature = "serde")]
extern crate serde;
#[cfg(feature = "serde_derive")]
#[macro_use]
extern crate serde_derive;
#[cfg(feature = "std")]
use cid_fork_rlay::{Cid, Codec, Error as CidError, Version};
#[cfg(feature = "std")]
use integer_encoding::VarIntReader;
pub mod ontology;
pub mod prelude {
#[cfg(feature = "serde")]
pub use crate::ontology::compact::*;
#[cfg(feature = "std")]
pub use crate::ontology::v0::*;
#[cfg(feature = "web3_compat")]
pub use crate::ontology::web3::*;
pub use crate::ontology::*;
}
#[cfg(feature = "std")]
pub trait ToCidUnknown {
fn to_cid_unknown(&self, permitted: Option<u64>) -> Result<Cid, CidError>;
}
#[cfg(feature = "std")]
impl ToCidUnknown for String {
fn to_cid_unknown(&self, permitted: Option<u64>) -> Result<Cid, CidError> {
let bytes = multibase::decode(self).unwrap().1;
bytes.to_cid_unknown(permitted)
}
}
#[cfg(feature = "std")]
use std::io::Cursor;
#[cfg(feature = "std")]
impl ToCidUnknown for [u8] {
fn to_cid_unknown(&self, permitted: Option<u64>) -> Result<Cid, CidError> {
let mut cur = Cursor::new(self);
let raw_version = cur.read_varint()?;
let raw_codec = cur.read_varint()?;
let version = Version::from(raw_version)?;
match permitted {
Some(permitted) => {
if raw_codec != permitted {
return Err(CidError::UnknownCodec);
}
}
None => {}
}
let codec = Codec::Unknown(raw_codec);
let hash = &self[cur.position() as usize..];
multihash::decode(hash)?;
Ok(Cid::new(codec, version, hash))
}
}