bjoernager/rust
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style library/core/src/error.rs

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Xiaobo Liu 2024-03-02 16:03:23 +08:00 • committed by GitHub
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library/core/src/error.rs
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@ -183,6 +183,7 @@ pub trait Error: Debug + Display {
#[allow(unused_variables)] #[allow(unused_variables)]
fn provide<'a>(&'a self, request: &mut Request<'a>) {} fn provide<'a>(&'a self, request: &mut Request<'a>) {}
} }
mod private { mod private {
// This is a hack to prevent `type_id` from being overridden by `Error` // This is a hack to prevent `type_id` from being overridden by `Error`
// implementations, since that can enable unsound downcasting. // implementations, since that can enable unsound downcasting.