Provide a Borrowed-Or-oWned smart pointer.
Alternative to Cow for which the Clone trait is not required for
the encapsulated type.
Use this crate if you want something like Cow but your type cannot be
cloned.
You can find the rustdoc here.
extern crate boow;
use boow::Bow;
// This struct contains a type for which we cannot know at compile time
// whether it will be owned or borrowed.
struct MyStruct<'a> {
borrowed_or_owned: Bow<'a, InnerStruct>,
}
struct InnerStruct {
_stuff: String,
}
impl<'a> MyStruct<'a> {
// Use borrowed value
fn from_borrowed(inner: &'a InnerStruct) -> Self {
Self { borrowed_or_owned: Bow::Borrowed(inner) }
}
// Use owned value
fn from_owned(inner: InnerStruct) -> Self {
Self { borrowed_or_owned: Bow::Owned(inner) }
}
}If you're interested in using this crate with no_std and the alloc crate,
add the following to Cargo.toml:
[dependencies]
boow = { version = "0.1", default-features = false }