casper-node 2.0.3

The Casper blockchain node
Documentation 
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use thiserror::Error;
use uint::FromDecStrErr;

use casper_types::{file_utils::ReadFileError, GlobalStateUpdateError};

/// Error returned when loading the chainspec.
#[derive(Debug, Error)]
pub enum Error {
    /// Error while decoding the chainspec from TOML format.
    #[error("decoding from TOML error: {0}")]
    DecodingFromToml(#[from] toml::de::Error),

    /// Error while decoding Motes from a decimal format.
    #[error("decoding motes from base-10 error: {0}")]
    DecodingMotes(#[from] FromDecStrErr),

    /// Error loading the chainspec.
    #[error("could not load chainspec: {0}")]
    LoadChainspec(ReadFileError),

    /// Error loading the chainspec accounts.
    #[error("could not load chainspec accounts: {0}")]
    LoadChainspecAccounts(#[from] ChainspecAccountsLoadError),

    /// Error loading the global state update.
    #[error("could not load the global state update: {0}")]
    LoadGlobalStateUpgrade(#[from] GlobalStateUpdateLoadError),
}

/// Error loading chainspec accounts file.
#[derive(Debug, Error)]
pub enum ChainspecAccountsLoadError {
    /// Error loading the accounts file.
    #[error("could not load accounts: {0}")]
    LoadAccounts(#[from] ReadFileError),

    /// Error while decoding the chainspec accounts from TOML format.
    #[error("decoding from TOML error: {0}")]
    DecodingFromToml(#[from] toml::de::Error),

    /// Error while decoding a chainspec account's key hash from hex format.
    #[error("decoding from hex error: {0}")]
    DecodingFromHex(#[from] base16::DecodeError),

    /// Error while decoding Motes from a decimal format.
    #[error("decoding motes from base-10 error: {0}")]
    DecodingMotes(#[from] FromDecStrErr),

    /// Error while decoding a chainspec account's key hash from base-64 format.
    #[error("crypto module error: {0}")]
    Crypto(#[from] casper_types::crypto::ErrorExt),
}

/// Error loading global state update file.
#[derive(Debug, Error)]
pub enum GlobalStateUpdateLoadError {
    /// Error loading the accounts file.
    #[error("could not load the file: {0}")]
    LoadFile(#[from] ReadFileError),

    /// Error while decoding the chainspec accounts from TOML format.
    #[error("decoding from TOML error: {0}")]
    DecodingFromToml(#[from] toml::de::Error),

    /// Error decoding kvp items.
    #[error("decoding key value entries error: {0}")]
    DecodingKeyValuePairs(#[from] GlobalStateUpdateError),
}