pub trait Owned: Introspect {
type Reader<'a>: FromPointerReader<'a> + SetterInput<Self>;
type Builder<'a>: FromPointerBuilder<'a>;
}Expand description
A trait to encode relationships between readers and builders.
If Foo is a Cap’n Proto struct and Bar is a Rust-native struct, then
foo::Reader<'a> is to foo::Owned as &'a Bar is to Bar, and
foo::Builder<'a> is to foo::Owned as &'a mut Bar is to Bar.
The relationship is formalized by an impl capnp::traits::Owned for foo::Owned.
Because Cap’n Proto struct layout differs from Rust struct layout, a foo::Owned value
cannot be used for anything interesting on its own; the foo::Owned type is useful
nonetheless as a type parameter, e.g. for a generic container that owns a Cap’n Proto
message of type T: capnp::traits::Owned.
Required Associated Types§
type Reader<'a>: FromPointerReader<'a> + SetterInput<Self>
type Builder<'a>: FromPointerBuilder<'a>
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.