Struct cranelift_egraph::BumpArena

pub struct BumpArena<T> { /* private fields */ }

Implementations

impl<T> BumpArena<T>

pub fn new() -> Self

Create a new arena into which one can allocate BumpVecs.

pub fn arena_with_capacity(cap: usize) -> Self

Create a new arena, pre-allocating space for cap total T elements.

pub fn vec_with_capacity(&mut self, cap: usize) -> BumpVec<T>

Create a new BumpVec with the given pre-allocated capacity and zero length.

pub fn single(&mut self, t: T) -> BumpVec<T>

Create a new BumpVec with a single element. The capacity is also only one element; growing the vector further will require a reallocation.

pub fn from_iter<I: Iterator<Item = T>>(&mut self, i: I) -> BumpVec<T>

Create a new BumpVec with the sequence from an iterator.

pub fn append(&mut self, a: BumpVec<T>, b: BumpVec<T>) -> BumpVec<T>

Append two BumpVecs, returning a new one. Consumes both vectors. This will use the capacity at the end of a if possible to move b’s elements into place; otherwise it will need to allocate new space.

pub fn size(&self) -> usize

Returns the size of the backing Vec.

Trait Implementations

impl<T: Default> Default for BumpArena<T>

fn default() -> BumpArena<T>

Returns the “default value” for a type.