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use std::error::Error; pub trait AsDynError { fn as_dyn_error(&self) -> &(dyn Error + 'static); } impl<T: Error + 'static> AsDynError for T { #[inline] fn as_dyn_error(&self) -> &(dyn Error + 'static) { self } } impl AsDynError for dyn Error + 'static { #[inline] fn as_dyn_error(&self) -> &(dyn Error + 'static) { self } } impl AsDynError for dyn Error + Send + 'static { #[inline] fn as_dyn_error(&self) -> &(dyn Error + 'static) { self } } impl AsDynError for dyn Error + Send + Sync + 'static { #[inline] fn as_dyn_error(&self) -> &(dyn Error + 'static) { self } }