38 lines
1.2 KiB
Rust
38 lines
1.2 KiB
Rust
// -- imports --
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use core::fmt;
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use std::error::Error;
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// -- error struct --
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#[derive(Debug)]
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/// Custom error struct. Helps ensure error handling
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/// doesn't get *too* ugly.
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pub enum KdtErr {
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TooManyArgs,
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PubDbOpenFailed,
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PrivDbOpenFailed,
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DbDumpFailed,
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KeyAlreadyExists,
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BadKeyId,
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}
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impl fmt::Display for KdtErr {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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match self {
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Self::TooManyArgs => write!(
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f,
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"Too many arguments were passed! You can only use one argument at a time."
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),
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Self::PubDbOpenFailed => write!(f, "Failed to open public keys database!"),
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Self::PrivDbOpenFailed => write!(f, "Failed to open private keys database!"),
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Self::DbDumpFailed => write!(f, "Failed to dump to database!"),
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Self::KeyAlreadyExists => write!(f, "This key already exists in the database!"),
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Self::BadKeyId => write!(f, "The key id you passed is invalid!"),
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}
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}
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}
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// Pointless trait implementation to ensure `KdtErr` is
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// considered an `Error` type so you can return it
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// in a function that returns eg `Result<(), Box<dyn Error>>`.
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impl Error for KdtErr {}
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