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cl-arena: Make arena constructors const fn

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John 2024-04-27 16:52:20 -05:00
parent ecf97801d6
commit 83423f37be
1 changed files with 16 additions and 16 deletions
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32
compiler/cl-arena/src/lib.rs
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@ -2,7 +2,7 @@
//!
//! An Arena Allocator is a type of allocator which provides stable locations for allocations within
//! itself for the entire duration of its lifetime.
//!
//!
//! [1]: https://raw.githubusercontent.com/rust-lang/rust/master/LICENSE-MIT
#![feature(dropck_eyepatch, new_uninit, strict_provenance)]
@ -96,18 +96,18 @@ pub mod typed_arena {
impl<T> Default for TypedArena<T> {
fn default() -> Self {
Self {
_drops: Default::default(),
chunks: Default::default(),
head: Cell::new(ptr::null_mut()),
tail: Cell::new(ptr::null_mut()),
}
Self::new()
}
}
impl<T> TypedArena<T> {
pub fn new() -> Self {
Self::default()
pub const fn new() -> Self {
Self {
_drops: PhantomData,
chunks: RefCell::new(Vec::new()),
head: Cell::new(ptr::null_mut()),
tail: Cell::new(ptr::null_mut()),
}
}
#[allow(clippy::mut_from_ref)]
@ -205,17 +205,17 @@ pub mod dropless_arena {
impl Default for DroplessArena {
fn default() -> Self {
Self {
chunks: Default::default(),
head: Cell::new(ptr::null_mut()),
tail: Cell::new(ptr::null_mut()),
}
Self::new()
}
}
impl DroplessArena {
pub fn new() -> Self {
Self::default()
pub const fn new() -> Self {
Self {
chunks: RefCell::new(Vec::new()),
head: Cell::new(ptr::null_mut()),
tail: Cell::new(ptr::null_mut()),
}
}
/// Allocates a `T` in the [DroplessArena], and returns a mutable reference to it.