Closed
Description
I just noticed that wasmi_core depends on downcast-rs for the sole purpose of providing the downcasting API via macro. Thus I deem this a very unnecessary dependency which should be removed.
In today's Rust the downcast-rs crate is only useful if there are a large number of traits that need downcasting support, for example often used in ECS systems. However, in Wasmi's case there is just the HostError trait.
It should be very easy to replace downcast-rs usage with Rust's Any type API.