pub(crate) trait UpgradeFrom<T>: Sized {
// Required method
fn upgrade_from(value: T) -> Self;
}Expand description
A copy of std::convert::From so we can work around Rust’s orphan rules.
The protobuf objects we durably persist for the catalog live in the
mz_catalog_protos crate, because prosts heavy usage of proc-macros
results in very long compile times. By moving them into a separate crate we
need to recompile them a lot less frequently.
Required Methods§
fn upgrade_from(value: T) -> Self
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.