tari_core 0.8.1

// Copyright 2020. The Tari Project
//
// Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
// following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
// disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
// following disclaimer in the documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote
// products derived from this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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use serde::{Deserialize, Serialize};
use std::{
    convert::TryFrom,
    fmt::{Display, Error, Formatter},
};

#[derive(Debug, Clone, PartialEq, Serialize, Deserialize, Copy)]
pub enum MmrTree {
    Utxo,
    Kernel,
    RangeProof,
}

impl Display for MmrTree {
    fn fmt(&self, f: &mut Formatter) -> Result<(), Error> {
        match self {
            MmrTree::RangeProof => f.write_str("Range Proof"),
            MmrTree::Utxo => f.write_str("UTXO"),
            MmrTree::Kernel => f.write_str("Kernel"),
        }
    }
}

impl TryFrom<i32> for MmrTree {
    type Error = String;

    fn try_from(v: i32) -> Result<Self, Self::Error> {
        match v {
            0 => Ok(MmrTree::Utxo),
            1 => Ok(MmrTree::Kernel),
            2 => Ok(MmrTree::RangeProof),
            _ => Err("Invalid MmrTree".into()),
        }
    }
}