19909456309

Committed 03 Dec 2025 09:29PM UTC coverage: 86.947% (+8.5%) from 78.463%

Build # 19909456309

Build Type

Pull #838

github

Committed by

web-flow

Commit Message

Merge 717ebc4b7 into 2f840d387

Pull Request Pull Request #838: Fix CI, bump dependencies and rust toolchain

Run Details

20 of 24 new or added lines in 12 files covered. (83.33%)

1614 existing lines in 221 files now uncovered.

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91.67

/ergo-chain-types/src/json/autolykos_solution.rs

//! Code to implement `AutolykosSolution` JSON encoding

use alloc::string::String;
use alloc::string::ToString;
use alloc::vec::Vec;
use core::str::FromStr;
use num_bigint::BigUint;

use num_traits::FromPrimitive;
use serde::{Deserialize, Deserializer};

pub(crate) fn as_base16_string<S>(value: &[u8], serializer: S) -> Result<S::Ok, S::Error>
where
    S: serde::Serializer,
{
    serializer.serialize_str(&base16::encode_lower(value))
}

pub(crate) fn from_base16_string<'de, D, T: From<Vec<u8>>>(deserializer: D) -> Result<T, D::Error>
where
    D: Deserializer<'de>,
{
    use serde::de::Error;
    String::deserialize(deserializer)
        .and_then(|string| base16::decode(&string).map_err(|err| Error::custom(err.to_string())))
        .map(From::from)
}

/// Serialize `BigInt` as a string
pub(crate) fn bigint_as_str<S>(value: &Option<BigUint>, serializer: S) -> Result<S::Ok, S::Error>
where
    S: serde::Serializer,
{
    if let Some(value) = value {
        serializer.serialize_str(&value.to_string())
    } else {
        serializer.serialize_unit()
    }
}

/// Deserialize a `BigInt` instance from either a String or from a `serde_json::Number` value.  We
/// need to do this because the JSON specification allows for arbitrarily-large numbers, a feature
/// that Autolykos makes use of to encode the PoW-distance (d) parameter. Note that we also need to
/// use `serde_json` with the `arbitrary_precision` feature for this to work.
pub(crate) fn bigint_from_serde_json_number<'de, D>(
    deserializer: D,
) -> Result<Option<BigUint>, D::Error>
where
    D: Deserializer<'de>,
{
    use serde::de::Error;

    match DeserializeBigIntFrom::deserialize(deserializer) {
        Ok(s) => match s {
            DeserializeBigIntFrom::String(s) => BigUint::from_str(&s)
                .map(Some)
                .map_err(|e| Error::custom(e.to_string())),
            DeserializeBigIntFrom::SerdeJsonNumber(n) => {
                let bigint = if n.is_f64() {
                    let n_f64 = n
                        .as_f64()
                        .ok_or_else(|| Error::custom("failed to convert JSON number to f64"))?;

                    BigUint::from_f64(n_f64).ok_or_else(|| {
                        Error::custom("failed to create BigInt from f64".to_string())
                    })
                } else {
                    BigUint::from_str(&n.to_string()).map_err(|e| Error::custom(e.to_string()))
                };

                bigint.map(Some)
            }
        },
        Err(e) => Err(Error::custom(e.to_string())),
    }
}

#[derive(Deserialize)]
#[serde(untagged)]
enum DeserializeBigIntFrom {
    String(String),
    SerdeJsonNumber(serde_json::Number),
}

#[allow(clippy::unwrap_used)]
#[cfg(test)]
mod tests {
    use serde::de::IntoDeserializer;
    use serde_json::Value;

    use super::bigint_from_serde_json_number;

    #[test]
    fn test_scientific_notion_deser() {
        let pow_d_parameter = r#"4.69094608138843e64"#;
        let j: Value = serde_json::from_str(pow_d_parameter).unwrap();
        let result = bigint_from_serde_json_number(j.into_deserializer()).unwrap();

        assert_eq!(
            result.unwrap().to_string(),
            "46909460813884301641411510982628556119846083366464832536248844288"
        )
    }
}

1	//! Code to implement `AutolykosSolution` JSON encoding
2
3	use alloc::string::String;
4	use alloc::string::ToString;
5	use alloc::vec::Vec;
6	use core::str::FromStr;
7	use num_bigint::BigUint;
8
9	use num_traits::FromPrimitive;
10	use serde::{Deserialize, Deserializer};
11
12	pub(crate) fn as_base16_string<S>(value: &[u8], serializer: S) -> Result<S::Ok, S::Error>	44✔
13	where	44✔
14	S: serde::Serializer,	44✔
15	{
16	serializer.serialize_str(&base16::encode_lower(value))	44✔
17	}	44✔
18
19	pub(crate) fn from_base16_string<'de, D, T: From<Vec<u8>>>(deserializer: D) -> Result<T, D::Error>	644✔
20	where	644✔
21	D: Deserializer<'de>,	644✔
22	{
23	use serde::de::Error;
24	String::deserialize(deserializer)	644✔
25	.and_then(\|string\| base16::decode(&string).map_err(\|err\| Error::custom(err.to_string())))	644✔
26	.map(From::from)	644✔
27	}	644✔
28
29	/// Serialize `BigInt` as a string
30	pub(crate) fn bigint_as_str<S>(value: &Option<BigUint>, serializer: S) -> Result<S::Ok, S::Error>	22✔
31	where	22✔
32	S: serde::Serializer,	22✔
33	{
34	if let Some(value) = value {	22✔
35	serializer.serialize_str(&value.to_string())	22✔
36	} else {
37	serializer.serialize_unit()	×
38	}
39	}	22✔
40
41	/// Deserialize a `BigInt` instance from either a String or from a `serde_json::Number` value. We
42	/// need to do this because the JSON specification allows for arbitrarily-large numbers, a feature
43	/// that Autolykos makes use of to encode the PoW-distance (d) parameter. Note that we also need to
44	/// use `serde_json` with the `arbitrary_precision` feature for this to work.
45	pub(crate) fn bigint_from_serde_json_number<'de, D>(	326✔
46	deserializer: D,	326✔
47	) -> Result<Option<BigUint>, D::Error>	326✔
48	where	326✔
49	D: Deserializer<'de>,	326✔
50	{
51	use serde::de::Error;
52
53	match DeserializeBigIntFrom::deserialize(deserializer) {	326✔
54	Ok(s) => match s {	326✔
55	DeserializeBigIntFrom::String(s) => BigUint::from_str(&s)	24✔
56	.map(Some)	24✔
57	.map_err(\|e\| Error::custom(e.to_string())),	24✔
58	DeserializeBigIntFrom::SerdeJsonNumber(n) => {	302✔
59	let bigint = if n.is_f64() {	302✔
60	let n_f64 = n	2✔
61	.as_f64()	2✔
62	.ok_or_else(\|\| Error::custom("failed to convert JSON number to f64"))?;	2✔
63
64	BigUint::from_f64(n_f64).ok_or_else(\|\| {	2✔
65	Error::custom("failed to create BigInt from f64".to_string())	×
UNCOV 66	})	×
67	} else {
68	BigUint::from_str(&n.to_string()).map_err(\|e\| Error::custom(e.to_string()))	300✔
69	};
70
71	bigint.map(Some)	302✔
72	}
73	},
74	Err(e) => Err(Error::custom(e.to_string())),	×
75	}
76	}	326✔
77
78	#[derive(Deserialize)]
79	#[serde(untagged)]
80	enum DeserializeBigIntFrom {
81	String(String),
82	SerdeJsonNumber(serde_json::Number),
83	}
84
85	#[allow(clippy::unwrap_used)]
86	#[cfg(test)]
87	mod tests {
88	use serde::de::IntoDeserializer;
89	use serde_json::Value;
90
91	use super::bigint_from_serde_json_number;
92
93	#[test]
94	fn test_scientific_notion_deser() {	2✔
95	let pow_d_parameter = r#"4.69094608138843e64"#;	2✔
96	let j: Value = serde_json::from_str(pow_d_parameter).unwrap();	2✔
97	let result = bigint_from_serde_json_number(j.into_deserializer()).unwrap();	2✔
98
99	assert_eq!(	2✔
100	result.unwrap().to_string(),	2✔
101	"46909460813884301641411510982628556119846083366464832536248844288"
102	)
103	}	2✔
104	}

ergoplatform / sigma-rust / 19909456309

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