hpl-toolkit 0.0.5

HPL toolkit
Documentation 
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use crate::compression::ToNode;
use anchor_lang::{prelude::*, solana_program::keccak};
use std::collections::HashMap;

macro_rules! impl_to_node_for_numbers {
    ($($t:ty)+) => {
        $(
            impl ToNode for $t {
                fn to_node(&self) -> [u8; 32] {
                    let bytes = self.clone().to_le_bytes();
                    keccak::hashv(&[bytes.as_ref()][..]).to_bytes()
                }
            }
        )+
    };
}
impl_to_node_for_numbers!(u8 u16 u32 u64 i8 i16 i32 i64 f32 f64);

impl ToNode for String {
    fn to_node(&self) -> [u8; 32] {
        keccak::hashv(&[self.clone().as_bytes()][..]).to_bytes()
    }
}

impl<T: ToNode> ToNode for Vec<T> {
    fn to_node(&self) -> [u8; 32] {
        let mut seeds: Vec<[u8; 32]> = vec![];
        for item in self {
            let node = item.to_node();
            seeds.push(node);
        }
        let seeds_refs: Vec<&[u8]> = seeds.iter().map(|node| &node[..]).collect();
        keccak::hashv(&seeds_refs[..]).to_bytes()
    }
}

impl ToNode for Pubkey {
    fn to_node(&self) -> [u8; 32] {
        self.to_bytes()
    }
}

impl ToNode for bool {
    fn to_node(&self) -> [u8; 32] {
        let bytes = self.clone().try_to_vec().unwrap();
        keccak::hashv(&[bytes.as_ref()][..]).to_bytes()
    }
}

impl<T: ToNode> ToNode for Option<T> {
    fn to_node(&self) -> [u8; 32] {
        match self {
            Some(value) => value.to_node(),
            None => keccak::hashv(&[&[0u8][..]][..]).to_bytes(),
        }
    }
}

impl<V: ToNode> ToNode for HashMap<String, V> {
    fn to_node(&self) -> [u8; 32] {
        let mut seeds: Vec<[u8; 32]> = vec![];
        for (key, value) in self {
            seeds.push(key.to_node());
            seeds.push(value.to_node());
        }
        let seeds_refs: Vec<&[u8]> = seeds.iter().map(|node| &node[..]).collect();
        keccak::hashv(&seeds_refs[..]).to_bytes()
    }
}

impl ToNode for [u8; 32] {
    fn to_node(&self) -> [u8; 32] {
        *self
    }
}

impl<A: ToNode, B: ToNode> ToNode for (A, B) {
    fn to_node(&self) -> [u8; 32] {
        let mut seeds: Vec<[u8; 32]> = vec![];
        seeds.push(self.0.to_node());
        seeds.push(self.1.to_node());
        let seeds_refs: Vec<&[u8]> = seeds.iter().map(|node| &node[..]).collect();
        keccak::hashv(&seeds_refs[..]).to_bytes()
    }
}
impl<A: ToNode, B: ToNode, C: ToNode> ToNode for (A, B, C) {
    fn to_node(&self) -> [u8; 32] {
        let mut seeds: Vec<[u8; 32]> = vec![];
        seeds.push(self.0.to_node());
        seeds.push(self.1.to_node());
        let seeds_refs: Vec<&[u8]> = seeds.iter().map(|node| &node[..]).collect();
        keccak::hashv(&seeds_refs[..]).to_bytes()
    }
}