5 stable releases
Uses old Rust 2015
1.1.1 | Jun 28, 2020 |
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1.1.0 | Jun 9, 2019 |
1.0.2 | Jan 27, 2019 |
1.0.1 | Apr 10, 2018 |
1.0.0 | Jan 15, 2018 |
#133 in Procedural macros
67,176 downloads per month
Used in 79 crates
(46 directly)
7KB
83 lines
derive_deref
This crate adds a simple #[derive(Deref)]
and #[derive(DerefMut)]
.
It can be used on any struct with exactly one field.
If the type of that field is a reference,
the reference will be returned directly.
Example
#[derive(Deref)]
struct MyInt(i32);
assert_eq!(&1, &*MyInt(1));
assert_eq!(&2, &*MyInt(2));
#[derive(Deref)]
struct MyString<'a>(&'a str);
// Note that we deref to &str, not &&str
assert_eq!("foo", &*MyString("foo"));
assert_eq!("bar", &*MyString("bar"));
License
Licensed under either of these:
- Apache License, Version 2.0, (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
- MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)
Contributing
Unless you explicitly state otherwise, any contribution you intentionally submit for inclusion in the work, as defined in the Apache-2.0 license, shall be dual-licensed as above, without any additional terms or conditions.
Dependencies
~1.5MB
~35K SLoC