* Leverage Cargo's workspace inheritance feature This commit is an attempt to reduce the complexity of the Cargo manifests in this repository with Cargo's workspace-inheritance feature becoming stable in Rust 1.64.0. This feature allows specifying fields in the root workspace `Cargo.toml` which are then reused throughout the workspace. For example this PR shares definitions such as: * All of the Wasmtime-family of crates now use `version.workspace = true` to have a single location which defines the version number. * All crates use `edition.workspace = true` to have one default edition for the entire workspace. * Common dependencies are listed in `[workspace.dependencies]` to avoid typing the same version number in a lot of different places (e.g. the `wasmparser = "0.89.0"` is now in just one spot. Currently the workspace-inheritance feature doesn't allow having two different versions to inherit, so all of the Cranelift-family of crates still manually specify their version. The inter-crate dependencies, however, are shared amongst the root workspace. This feature can be seen as a method of "preprocessing" of sorts for Cargo manifests. This will help us develop Wasmtime but shouldn't have any actual impact on the published artifacts -- everything's dependency lists are still the same. * Fix wasi-crypto tests
wiggle
Wiggle is a code generator for the host side of a witx interface. It is
invoked as a Rust procedural macro.
Wiggle is not specialized to any particular WebAssembly runtime. It is usable in at least Wasmtime and Lucet.
Learning more
Read the docs on docs.rs.
There are child crates for integrating with Wasmtime and Lucet.
The wasi-common crate is implemented using Wiggle and the wasmtime-wasi crate integrates wasi-common with the Wasmtime engine.
Andrew Brown wrote a great blog post on using Wiggle with Wasmtime.