4300c2c075
In some cases, it is useful to do some work at entry to or exit from a Cranelift function translated from WebAssembly. This PR adds two optional methods to the `FuncEnvironment` trait to do just this, analogous to the pre/post-hooks on operators that already exist. This PR also includes a drive-by compilation fix due to the latest nightly wherein `.is_empty()` on a `Range` ambiguously refers to either the `Range` impl or the `ExactSizeIterator` impl and can't resolve.
This crate performs the translation from a wasm module in binary format to the in-memory form of the Cranelift IR.
If you're looking for a complete WebAssembly implementation that uses this library, see Wasmtime.