Fortunately, we can do better than these things in Rust. Our type system is quite equal to easy, robust expression of such problems.
-The ``AnyMap`` type is a friendly wrapper around a ``HashMap<TypeId, Box<Any>:'static>``, exposing a nice, easy typed interface, perfectly safe and absolutely robust.
+The ``AnyMap`` type is a friendly wrapper around a ``HashMap<TypeId, Box<Any>>``, exposing a nice, easy typed interface, perfectly safe and absolutely robust.
What this means is that in an ``AnyMap`` you may store zero or one values for every type.
Instructions
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- make
+Cargo all the way: it is `anymap` on crates.io.
-This includes building the documentation which you may find at ``doc/anymap/index.html``.
-
-The documentation, with examples, [is also available online](http://www.rust-ci.org/chris-morgan/anymap/doc/anymap/struct.AnyMap.html).
-
-Future work
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-
-I think that the only thing left for this is filling out additional methods from ``HashMap`` as appropriate.
-
-It’s a very simple thing. (The initial implementation time was under ten minutes.)
+There is an optional `clone` feature on the `anymap` crate; if enabled, your `AnyMap` will require contained types to implement `Clone` and will itself satisfy `Clone`.
Author
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