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/* * MIT License * * Copyright (c) 2019 Kigi Chang * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. * */ extern crate bs58; extern crate sha2; extern crate uuid; //use bs58::decode::Error as bs58dErr; use protobuf::ProtobufError; use sawtooth_sdk::signing::Error as SignErr; use std::{error, fmt, result}; // utility for dataforce. pub mod util; pub mod wallet; // sawtooth toolkit pub mod messages; pub mod namespace; pub mod signing; pub mod tp; pub mod tx; // ---------------------------------------------------------------------------- #[derive(Debug)] pub enum Error { InvalidChar(usize, char), OddLengthString(usize), Protobuf(ProtobufError), Signing(SignErr), //InvalidLength(usize), //InvalidVersion(u8, u8), //BS58(bs58dErr), //CheckSum, } impl fmt::Display for Error { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match &self { Error::InvalidChar(idx, ch) => write!(f, "invalid hex character {} at {}", ch, idx), Error::OddLengthString(len) => write!(f, "odd hex string length {}", len), Error::Protobuf(e) => write!(f, "encode/decode proto message {}", e), Error::Signing(e) => e.fmt(f), /*Error::InvalidLength(len) => write!(f, "invalid length {}", len), Error::InvalidVersion(test, ans) => { write!(f, "invalid version {}, must be {}", test, ans) } Error::BS58(e) => write!(f, "base58 decode: {:?}", e), Error::CheckSum => write!(f, "checksum not match"),*/ } } } impl error::Error for Error { fn cause(&self) -> Option<&dyn error::Error> { match &self { Error::Protobuf(ref e) => Some(e), Error::Signing(ref e) => Some(e), //Error::BS58(ref e) => Some(e), _ => None, } } fn description(&self) -> &'static str { match *self { Error::InvalidChar(_, _) => "invalid hex character", Error::OddLengthString(_) => "odd hex string length", Error::Protobuf(_) => "encode/decode proto message failure", Error::Signing(_) => "signing error", /*Error::InvalidLength(_) => "invalid length", Error::InvalidVersion(_, _) => "invalid version", Error::BS58(_) => "base58 decode failure", Error::CheckSum => "checksum not match",*/ } } } pub type Result<T> = result::Result<T, Error>;