19f6c17df4
This makes the following API stable in const contexts:
impl<T> Option<T> {
pub const fn as_mut(&mut self) -> Option<&mut T>;
pub const fn expect(self, msg: &str) -> T;
pub const fn unwrap(self) -> T;
pub const unsafe fn unwrap_unchecked(self) -> T;
pub const fn take(&mut self) -> Option<T>;
pub const fn replace(&mut self, value: T) -> Option<T>;
}
impl<T> Option<&T> {
pub const fn copied(self) -> Option<T>
where T: Copy;
}
impl<T> Option<&mut T> {
pub const fn copied(self) -> Option<T>
where T: Copy;
}
impl<T, E> Option<Result<T, E>> {
pub const fn transpose(self) -> Result<Option<T>, E>
}
impl<T> Option<Option<T>> {
pub const fn flatten(self) -> Option<T>;
}
The following functions make use of the unstable
`const_precise_live_drops` feature:
- `expect`
- `unwrap`
- `unwrap_unchecked`
- `transpose`
- `flatten`
Fixes: <https://github.com/rust-lang/rust/issues/67441>
28 lines
714 B
Rust
28 lines
714 B
Rust
//! Support code for encoding and decoding types.
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// tidy-alphabetical-start
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#![allow(internal_features)]
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#![allow(rustc::internal)]
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#![cfg_attr(test, feature(test))]
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#![doc(
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html_root_url = "https://doc.rust-lang.org/nightly/nightly-rustc/",
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html_playground_url = "https://play.rust-lang.org/",
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test(attr(allow(unused_variables), deny(warnings)))
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)]
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#![doc(rust_logo)]
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#![feature(core_intrinsics)]
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#![feature(min_specialization)]
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#![feature(never_type)]
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#![feature(ptr_sub_ptr)]
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#![feature(rustdoc_internals)]
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#![warn(unreachable_pub)]
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// tidy-alphabetical-end
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pub use self::serialize::{Decodable, Decoder, Encodable, Encoder};
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mod serialize;
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pub mod int_overflow;
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pub mod leb128;
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pub mod opaque;
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