36 lines
1.1 KiB
Rust
36 lines
1.1 KiB
Rust
use std::fmt;
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/// A general error type for use by [`Pool`](crate::Pool#implementing)
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/// implementors and returned by the [`Connection`](crate::Connection) request
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/// guard.
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#[derive(Debug)]
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pub enum Error<A, B = A> {
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/// An error that occured during database/pool initialization.
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Init(A),
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/// An error that ocurred while retrieving a connection from the pool.
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Get(B),
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/// A [`Figment`](crate::figment::Figment) configuration error.
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Config(crate::figment::Error),
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}
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impl<A: fmt::Display, B: fmt::Display> fmt::Display for Error<A, B> {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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match self {
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Error::Init(e) => write!(f, "failed to initialize database: {}", e),
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Error::Get(e) => write!(f, "failed to get db connection: {}", e),
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Error::Config(e) => write!(f, "bad configuration: {}", e),
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}
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}
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}
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impl<A, B> std::error::Error for Error<A, B>
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where A: fmt::Debug + fmt::Display, B: fmt::Debug + fmt::Display {}
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impl<A, B> From<crate::figment::Error> for Error<A, B> {
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fn from(e: crate::figment::Error) -> Self {
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Self::Config(e)
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}
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}
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