miden-client-web 0.15.0

Web Client library that facilitates interaction with the Miden network
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

use js_export_macro::js_export;
use miden_client::crypto::MerklePath as NativeMerklePath;

use super::word::Word;
use crate::platform::{JsErr, from_str_err, js_u64_to_u64};

/// Represents a Merkle path.
#[derive(Clone)]
#[js_export]
pub struct MerklePath(NativeMerklePath);

#[js_export]
impl MerklePath {
    /// Computes the root given a leaf index and value.
    #[js_export(js_name = "computeRoot")]
    pub fn compute_root(&self, index: JsU64, node: &Word) -> Result<Word, JsErr> {
        self.0
            .compute_root(js_u64_to_u64(index), node.clone().into())
            .map(Into::into)
            .map_err(|err| from_str_err(&format!("Invalid Merkle path index: {err}")))
    }

    /// Verifies the path against a root.
    pub fn verify(&self, index: JsU64, node: &Word, root: &Word) -> bool {
        self.0
            .verify(js_u64_to_u64(index), node.clone().into(), &root.clone().into())
            .is_ok()
    }

    /// Returns the depth of the path.
    pub fn depth(&self) -> u8 {
        self.0.depth()
    }

    /// Returns the nodes that make up the path.
    pub fn nodes(&self) -> Vec<Word> {
        self.0.nodes().iter().map(Into::into).collect()
    }
}

// CONVERSIONS
// ================================================================================================

impl From<NativeMerklePath> for MerklePath {
    fn from(native_path: NativeMerklePath) -> Self {
        MerklePath(native_path)
    }
}

impl From<&NativeMerklePath> for MerklePath {
    fn from(native_path: &NativeMerklePath) -> Self {
        MerklePath(native_path.clone())
    }
}