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use std::{error, fmt};
#[cfg(feature = "serde")]
use serde::{Deserialize, Serialize};
#[derive(Clone, Debug, PartialEq)]
#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
#[cfg_attr(feature = "serde", serde(rename_all = "snake_case"))]
pub enum Error {
OutputTooShort,
OutputTooLong,
PwdTooShort,
PwdTooLong,
SaltTooShort,
SaltTooLong,
AdTooShort,
AdTooLong,
SecretTooShort,
SecretTooLong,
TimeTooSmall,
TimeTooLarge,
MemoryTooLittle,
MemoryTooMuch,
LanesTooFew,
LanesTooMany,
IncorrectType,
IncorrectVersion,
DecodingFail,
}
impl Error {
fn msg(&self) -> &str {
match *self {
Error::OutputTooShort => "Output is too short",
Error::OutputTooLong => "Output is too long",
Error::PwdTooShort => "Password is too short",
Error::PwdTooLong => "Password is too long",
Error::SaltTooShort => "Salt is too short",
Error::SaltTooLong => "Salt is too long",
Error::AdTooShort => "Associated data is too short",
Error::AdTooLong => "Associated data is too long",
Error::SecretTooShort => "Secret is too short",
Error::SecretTooLong => "Secret is too long",
Error::TimeTooSmall => "Time cost is too small",
Error::TimeTooLarge => "Time cost is too large",
Error::MemoryTooLittle => "Memory cost is too small",
Error::MemoryTooMuch => "Memory cost is too large",
Error::LanesTooFew => "Too few lanes",
Error::LanesTooMany => "Too many lanes",
Error::IncorrectType => "There is no such type of Argon2",
Error::IncorrectVersion => "There is no such version of Argon2",
Error::DecodingFail => "Decoding failed",
}
}
}
impl fmt::Display for Error {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{}", self.msg())
}
}
impl error::Error for Error {
fn description(&self) -> &str {
self.msg()
}
fn cause(&self) -> Option<&dyn error::Error> {
None
}
}
impl From<base64::DecodeError> for Error {
fn from(_: base64::DecodeError) -> Self {
Error::DecodingFail
}
}