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Fix error handling in PositiveNonzeroInteger::new()

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This commit is contained in:
Rock070 2023-12-31 04:02:19 +08:00
parent dcd82188c3
commit 5a9c46b51e
1 changed files with 7 additions and 3 deletions
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10
exercises/13_error_handling/errors4.rs
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@ -3,8 +3,6 @@
// Execute `rustlings hint errors4` or use the `hint` watch subcommand for a // Execute `rustlings hint errors4` or use the `hint` watch subcommand for a
// hint. // hint.
// I AM NOT DONE
#[derive(PartialEq, Debug)] #[derive(PartialEq, Debug)]
struct PositiveNonzeroInteger(u64); struct PositiveNonzeroInteger(u64);
@ -17,7 +15,13 @@ enum CreationError {
impl PositiveNonzeroInteger { impl PositiveNonzeroInteger {
fn new(value: i64) -> Result<PositiveNonzeroInteger, CreationError> { fn new(value: i64) -> Result<PositiveNonzeroInteger, CreationError> {
// Hmm... Why is this always returning an Ok value? // Hmm... Why is this always returning an Ok value?
Ok(PositiveNonzeroInteger(value as u64)) if value == 0 {
Err(CreationError::Zero)
} else if value < 0 {
Err(CreationError::Negative)
} else {
Ok(PositiveNonzeroInteger(value as u64))
}
} }
} }