用于嵌入式系统的高效且通用的 WebAssembly 解释器。
Wasmi is an efficient and lightweight WebAssembly interpreter with a focus on constrained and embedded systems. ## Distinct Features - Simple, correct and deterministic execution of WebAssembly. - Efficient and cross-platform WebAssembly runtime for [`no_std` embedded environments](https://doc.rust-lang.org/stable/rustc/platform-support.html). - Compiler/JIT bomb resisting translation. - Loosely mirrors the [Wasmtime API](https://docs.rs/wasmtime/) to act as drop-in replacement. - 100% WebAssembly spec testsuite compliance. - Built-in support for fuel metering. - Supports the official [Wasm C-API](https://github.com/WebAssembly/wasm-c-api). ## Security Audits Wasmi is suitable for safety critical use cases and has been audited twice. | Wasmi Version(s) | Auditor | Contractor | Report | |--:|:--|:--|:--| | `0.36.0`-`0.38.0` | [Runtime Verification Inc.] | [Stellar Development Foundation] | [PDF](./resources/audit-2024-11-27.pdf) | | `0.31.0` | [SRLabs] | [Parity Technologies] | [PDF](./resources/audit-2023-12-20.pdf) | [Wasmtime]: https://github.com/bytecodealliance/wasmtime [SRLabs]: https://www.srlabs.de/ [Runtime Verification Inc.]: https://runtimeverification.com/ [Stellar Development Foundation]: https://stellar.org/foundation [Parity Technologies]: https://www.parity.io/ ## Docs - [Usage Guide](./docs/usage.md): learn how to use the [Wasmi API](https://crates.io/crates/wasmi) properly. - ️ [Development Guide](./docs/developement.md): learn how to develop for Wasmi. - ✨ [Crate Features](https://docs.rs/wasmi/latest/wasmi/#crate-features): learn about `wasmi` crate features. ## WebAssembly Features | | WebAssembly Proposal | | | | WebAssembly Proposal | | |:-:|:--|:--|:-:|:--|:--|:--| | ✅ | [`mutable-global`] | ≥ `0.14.0` | | ✅ | [`custom-page-sizes`] | [≥ `0.41.0`][(#1197)] | | ✅ | [`saturating-float-to-int`] | ≥ `0.14.0` | | ✅ | [`memory64`] | [≥ `0.41.0`][(#1357)] | | ✅ | [`sign-extension`] | ≥ `0.14.0` | | ✅ | [`wide-arithmetic`] | [≥ `0.42.0`][(#1369)] | | ✅ | [`multi-value`] | ≥ `0.14.0` | | ✅ | [`simd`] | [≥ `0.43.0`][(#1364)] | | ✅ | [`bulk-memory`] | [≥ `0.24.0`][(#628)] | | ✅ | [`relaxed-simd`] | [≥ `0.44.0`][(#1443)] | | ✅ | [`reference-types`] | [≥ `0.24.0`][(#635)] | | | [`function-references`] | [Tracking Issue][(#774)] | | ✅ | [`tail-calls`] | [≥ `0.28.0`][(#683)] | | | [`gc`] | [Tracking Issue][(#775)] | | ✅ | [`extended-const`] | [≥ `0.29.0`][(#707)] | | | [`threads`] | [Tracking Issue][(#777)] | | ✅ | [`multi-memory`] | [≥ `0.37.0`][(#1191)] | | | [`exception-handling`] | [Tracking Issue][(#1037)] | | | Embeddings | | |:-:|:--|:--| | ✅ | [WASI] | WASI (`wasip1`) support via the [`wasmi_wasi` crate]. | | ✅ | [C-API] | Official Wasm C-API support via the [`wasmi_c_api_impl` crate]. | [`mutable-global`]: https://github.com/WebAssembly/mutable-global [`saturating-float-to-int`]: https://github.com/WebAssembly/nontrapping-float-to-int-conversions [`sign-extension`]: https://github.com/WebAssembly/sign-extension-ops [`multi-value`]: https://github.com/WebAssembly/multi-value [`reference-types`]: https://github.com/WebAssembly/reference-types [`bulk-memory`]: https://github.com/WebAssembly/bulk-memory-operations [`simd` ]: https://github.com/webassembly/simd [`tail-calls`]: https://github.com/WebAssembly/tail-call [`extended-const`]: https://github.com/WebAssembly/extended-const [`function-references`]: https://github.com/WebAssembly/function-references [`gc`]: https://github.com/WebAssembly/gc [`multi-memory`]: https://github.com/WebAssembly/multi-memory [`threads`]: https://github.com/WebAssembly/threads [`relaxed-simd`]: https://github.com/WebAssembly/relaxed-simd [`exception-handling`]: https://github.com/WebAssembly/exception-handling [`custom-page-sizes`]: https://github.com/WebAssembly/custom-page-sizes [`memory64`]: https://github.com/WebAssembly/memory64 [`wide-arithmetic`]: https://github.com/WebAssembly/wide-arithmetic [WASI]: https://github.com/WebAssembly/WASI [C-API]: https://github.com/WebAssembly/wasm-c-api [`wasmi_wasi` crate]: ./crates/wasi [`wasmi_c_api_impl` crate]: ./crates/c_api [(#363)]: https://github.com/wasmi-labs/wasmi/issues/363 [(#364)]: https://github.com/wasmi-labs/wasmi/issues/364 [(#496)]: https://github.com/wasmi-labs/wasmi/issues/496 [(#628)]: https://github.com/wasmi-labs/wasmi/pull/628 [(#635)]: https://github.com/wasmi-labs/wasmi/pull/635 [(#638)]: https://github.com/wasmi-labs/wasmi/pull/638 [(#683)]: https://github.com/wasmi-labs/wasmi/pull/683 [(#707)]: https://github.com/wasmi-labs/wasmi/pull/707 [(#774)]: https://github.com/wasmi-labs/wasmi/pull/774 [(#775)]: https://github.com/wasmi-labs/wasmi/pull/775 [(#776)]: https://github.com/wasmi-labs/wasmi/pull/776 [(#777)]: https://github.com/wasmi-labs/wasmi/pull/777 [(#1037)]: https://github.com/wasmi-labs/wasmi/issues/1137 [(#1197)]: https://github.com/wasmi-labs/wasmi/issues/1197 [(#1191)]: https://github.com/wasmi-labs/wasmi/issues/1191 [(#1357)]: https://github.com/wasmi-labs/wasmi/issues/1357 [(#1364)]: https://github.com/wasmi-labs/wasmi/issues/1364 [(#1369)]: https://github.com/wasmi-labs/wasmi/issues/1369 [(#1443)]: https://github.com/wasmi-labs/wasmi/pull/1443 ## Used by If you want your project on this list [please inform me](mailto:[email protected]) about you project and how Wasmi is used. [Soroban] · [Typst] · [Zellij] · [Josh] · [Ripple] · [Firefly Zero] · [icu4x] · [orbitinghail] · [smoldot] · [Munal OS] · [Ayaka] · [Project Oak] [Soroban]: https://stellar.org/soroban [Firefly Zero]: https://fireflyzero.com [Typst]: https://typst.app [Zellij]: https://zellij.dev [Ripple]: https://ripple.com [Josh]: https://github.com/josh-project/josh [icu4x]: https://github.com/unicode-org/icu4x [orbitinghail]: https://orbitinghail.dev [Munal OS]: https://github.com/Askannz/munal-os [Ayaka]: https://github.com/Uni-Gal/Ayaka [Project Oak]: https://github.com/project-oak/oak [smoldot]: https://github.com/smol-dot/smoldot ## Sponsors Special thanks to the past and present sponsors of the Wasmi project.
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