Module rustc_target::spec::targets::wasm32_wasip2

The wasm32-wasip2 target is the next evolution of the wasm32-wasi target. While the wasi specification is still under active development, the {review 2 iteration is considered an “island of stability” that should allow users to rely on it indefinitely.

The wasi target is a proposal to define a standardized set of WebAssembly component imports that allow it to interoperate with the host system in a standardized way. This set of imports is intended to empower WebAssembly binaries with host capabilities such as filesystem access, network access, etc.

Wasi Preview 2 relies on the WebAssembly component model which is an extension of the core WebAssembly specification which allows interoperability between WebAssembly modules (known as “components”) through high-level, shared-nothing APIs instead of the low-level, shared-everything linear memory model of the core WebAssembly specification.

You can see more about wasi at https://wasi.dev and the component model at https://github.com/WebAssembly/component-model.

Functions

• target