This crate defines helpers for embedding WebAssembly engines. Currently only the [Wasmtime](https://github.com/bytecodealliance/wasmtime) is supported.
See [Nondeterminism in WebAssembly](https://github.com/WebAssembly/design/blob/main/Nondeterminism.md) for general description of sources of nondeterminism. We use the following config flags to ensure deterministic execution in Wasmtime:
-
Threads:
wasmtime::Config::wasm_threads(false). -
SIMD:
wasmtime::Config::wasm_simd(false). -
NaN values:
wasmtime::Config::cranelift_nan_canonicalization(true).