WASI

external class WASI(source)

The WASI class provides the WASI system call API and additional convenience methods for working with WASI-based applications. Each WASI instance represents a distinct environment.

Since

v13.3.0, v12.16.0

Constructors

WASI

constructor(options: WASIOptions = definedExternally)

Properties

wasiImport

val wasiImport: Dict<Any?>

wasiImport is an object that implements the WASI system call API. This object should be passed as the wasi_snapshot_preview1 import during the instantiation of a WebAssembly.Instance.

Functions

getImportObject

fun getImportObject(): Any

Return an import object that can be passed to WebAssembly.instantiate() if no other WASM imports are needed beyond those provided by WASI.

initialize

fun initialize(instance: Any)

Attempt to initialize instance as a WASI reactor by invoking its _initialize() export, if it is present. If instance contains a _start() export, then an exception is thrown.

start

fun start(instance: Any): Double

Attempt to begin execution of instance as a WASI command by invoking its _start() export. If instance does not contain a _start() export, or if instance contains an _initialize() export, then an exception is thrown.