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diff --git a/book/en/src/by-example/singletons.md b/book/en/src/by-example/singletons.md deleted file mode 100644 index 0823f05..0000000 --- a/book/en/src/by-example/singletons.md +++ /dev/null @@ -1,26 +0,0 @@ -# Singletons - -The `app` attribute is aware of [`owned-singleton`] crate and its [`Singleton`] -attribute. When this attribute is applied to one of the resources the runtime -will perform the `unsafe` initialization of the singleton for you, ensuring that -only a single instance of the singleton is ever created. - -[`owned-singleton`]: ../../api/owned_singleton/index.html -[`Singleton`]: ../../api/owned_singleton_macros/attr.Singleton.html - -Note that when using the `Singleton` attribute you'll need to have the -`owned_singleton` in your dependencies. - -Below is an example that uses the `Singleton` attribute on a chunk of memory -and then uses the singleton instance as a fixed-size memory pool using one of -the [`alloc-singleton`] abstractions. - -[`alloc-singleton`]: https://crates.io/crates/alloc-singleton - -``` rust -{{#include ../../../../examples/singleton.rs}} -``` - -``` console -$ cargo run --example singleton -{{#include ../../../../ci/expected/singleton.run}}``` |