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25 lines
631 B
Rust
25 lines
631 B
Rust
#[derive(Debug)]
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enum MyError {
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NotFound { key: Vec<u8> },
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Err41,
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}
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impl std::error::Error for MyError {}
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impl std::fmt::Display for MyError {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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match self {
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MyError::NotFound { key } => write!(
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f,
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"unknown error with code {}.",
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String::from_utf8(*key).unwrap()
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//~^ ERROR cannot move out of `*key` which is behind a shared reference
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),
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MyError::Err41 => write!(f, "Sit by a lake"),
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}
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}
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}
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fn main() {
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println!("Hello, world!");
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}
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