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rust-bitcoin-unsafe-fast
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hashes: Fix leaf error type 

Leaf error types should typically have private fields, provide accessor
functions, and not use `non_exhaustive`.
This commit is contained in:
Tobin C. Harding 2024-03-01 16:22:05 +11:00
parent 162094322f
commit 2af764e859
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1 changed files with 9 additions and 4 deletions
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13
hashes/src/lib.rs
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@ -234,12 +234,19 @@ pub trait Hash:
/// Attempted to create a hash from an invalid length slice.
#[derive(Debug, Clone, PartialEq, Eq)]
#[non_exhaustive]
pub struct FromSliceError {
expected: usize,
got: usize,
}
impl FromSliceError {
/// Returns the expected slice length.
pub fn expected_length(&self) -> usize { self.expected }
/// Returns the invalid slice length.
pub fn invalid_length(&self) -> usize { self.got }
}
impl fmt::Display for FromSliceError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "invalid slice length {} (expected {})", self.got, self.expected)
@ -247,9 +254,7 @@ impl fmt::Display for FromSliceError {
}
#[cfg(feature = "std")]
impl std::error::Error for FromSliceError {
fn source(&self) -> Option<&(dyn std::error::Error + 'static)> { None }
}
impl std::error::Error for FromSliceError {}
#[cfg(test)]
mod tests {