cb7b1aadcc
This commit fixes a memory leak that can happen with `Linker::module` when the provided module is a command. This function creates a closure but the closure closed over a strong reference to `Store` (and transitively through any imports provided). Unfortunately a `Store` keeps everything alive, including `Func`, so this meant that `Store` was inserted into a cycle which caused the leak. The cycle here is manually broken by closing over the raw value of each external value rather than the external value itself (which has a strong reference to `Store`).
Wasmtime Embedding API
The wasmtime crate is an embedding API of the wasmtime WebAssembly runtime.
This is intended to be used in Rust projects and provides a high-level API of
working with WebAssembly modules.
If you're interested in embedding wasmtime in other languages, you may wish to
take a look a the C embedding API instead!