#dynamic #arena #alloc #vector


A allocated chunk of memory populated with a fixed set of types

6 releases

0.1.6 Mar 15, 2021
0.1.5 Jan 24, 2021

#406 in Memory management

MIT license

391 lines

Documentation Crates.io

stadium provides the Stadium structure. This datastructure allows you to allocate any given set of objects (that can be of different types) in a continuous chunk of the memory.


// The first step is to build the stadium using a builder.
// This registers the data that will be used inside of the stadium.
let mut builder = stadium::builder();

let h_vec = builder.insert(vec![2019, 2020, 2021]);
let h_str = builder.insert("Hello, world!");
let h_int_a = builder.insert(68u64);
let h_int_b = builder.insert(65u64)

// Once the initialization is done, the actual stadium can be created.
let mut stadium = builder.build();

// Values can be retrieved.
assert_eq!(&stadium[h_vec], &[2019, 2020, 2021][..]);
assert_eq!(stadium[h_str], "Hello, world!");
assert_eq!(stadium[h_int_a], 68);

// Or mutated.
stadium[h_int_b] = 70;

// Other operations are supported.
assert_eq!(stadium.replace(h_str, "FOOBAR"), "Hello, world!");

stadium.swap(h_int_a, h_int_b);
assert_eq!(stadium[h_int_a], 70);
assert_eq!(stadium[h_int_b], 68);

No runtime deps