Cargo Features

[dependencies]
wasmi_core = { version = "0.44.0", default-features = false, features = ["std", "simd"] }
default = std

The std feature is set by default whenever wasmi_core is added without default-features = false somewhere in the dependency tree.

std default

Use no-default-features for a no_std build.

Enables std of downcast-rs

simd

Enables the Wasm simd proposal.

This also changes the size of UntypedVal from 64-bit to 128-bit which may have significant impact on performance and memory usage.

Affects wasmi_core::simd, value::Float.mul_add