forest-filecoin 0.33.7

Rust Filecoin implementation.
Documentation 
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

// Copyright 2019-2026 ChainSafe Systems
// SPDX-License-Identifier: Apache-2.0, MIT

use super::*;
use crate::shim::percent::Percent;
use std::convert::TryFrom;

impl HasLotusJson for Percent {
    type LotusJson = f64;

    #[cfg(test)]
    fn snapshots() -> Vec<(serde_json::Value, Self)> {
        vec![(json!(1.25), Percent(125)), (json!(1.10), Percent(110))]
    }

    fn into_lotus_json(self) -> Self::LotusJson {
        self.0 as f64 / 100.0
    }

    fn from_lotus_json(lotus_json: Self::LotusJson) -> Self {
        let scaled = format!("{lotus_json}e2")
            .parse::<f64>()
            .expect("unable to parse ratio");
        assert!(
            scaled.trunc() == scaled,
            "ratio may only have two decimals: {lotus_json}"
        );
        Percent(u64::try_from(scaled as i64).expect("ratio out of range"))
    }
}

#[cfg(test)]
impl quickcheck::Arbitrary for Percent {
    fn arbitrary(g: &mut quickcheck::Gen) -> Self {
        let whole = u32::arbitrary(g) % 10_000;
        let frac = u32::arbitrary(g) % 100;
        Percent(u64::from(whole) * 100 + u64::from(frac))
    }
}