2af544de8b
* Update cranelift to 0.58.0 * Update `wasmprinter` dep to require 0.2.1 We already had it in the lock file, but this ensures we won't ever go back down. * Ensure that our error messages match `assert_invalid`'s The bulk of this work was done in https://github.com/bytecodealliance/wasmparser/pull/186 but now we can test it at the `wasmtime` level as well. Fixes #492 * Stop feeling guilty about not matching `assert_malformed` messages Remove the "TODO" and stop printing warning messages. These would just be busy work to implement, and getting all the messages the exact same relies on using the same structure as the spec interpreter's parser, which means that where you have a helper function and they don't, then things go wrong, and vice versa. Not worth it. Fixes #492 * Enable (but ignore) the reference-types proposal tests * Match test suite directly, instead of roundabout starts/endswith * Enable (but ignore) bulk memory operations proposal test suite
Wasmtime: a WebAssembly Runtime
A Bytecode Alliance project
Wasmtime is a standalone wasm-only optimizing runtime for WebAssembly and WASI. It runs WebAssembly code outside of the Web, and can be used both as a command-line utility or as a library embedded in a larger application.
To get started, visit wasmtime.dev.
There are Rust, C, and C++ toolchains that can compile programs with WASI. See the WASI intro for more information, and the WASI tutorial for a tutorial on compiling and running programs using WASI and wasmtime, as well as an overview of the filesystem sandboxing system.
Wasmtime passes the WebAssembly spec testsuite. To run it, update the
tests/spec_testsuite submodule with git submodule update --remote, and it
will be run as part of cargo test.
Wasmtime does not yet implement Spectre mitigations, however this is a subject of ongoing research.
Additional goals for Wasmtime include:
- Support a variety of host APIs (not just WASI), with fast calling sequences, and develop proposals for additional API modules to be part of WASI.
- Facilitate development and testing around the Cranelift and Lightbeam JITs, and other WebAssembly execution strategies.
- Develop a native ABI used for compiling WebAssembly suitable for use in both JIT and AOT to native object files.
Including Wasmtime in your project
Wasmtime exposes an API for embedding as a library through the wasmtime subcrate,
which contains both a high-level and safe Rust API, as well as a C-compatible API
compatible with the proposed WebAssembly C API.
For more information, see the Rust API embedding chapter of the Wasmtime documentation.
It's Wasmtime.