40 lines
995 B
JavaScript
40 lines
995 B
JavaScript
import { instantiateNapiModuleSync, MessageHandler, WASI } from '@napi-rs/wasm-runtime'
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import { Volume, createFsFromVolume } from '@napi-rs/wasm-runtime/fs'
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const fs = createFsFromVolume(
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Volume.fromJSON({
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'/': null,
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}),
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)
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const handler = new MessageHandler({
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onLoad({ wasmModule, wasmMemory }) {
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const wasi = new WASI({
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fs,
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print: function () {
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// eslint-disable-next-line no-console
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console.log.apply(console, arguments)
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},
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printErr: function() {
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// eslint-disable-next-line no-console
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console.error.apply(console, arguments)
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},
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})
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return instantiateNapiModuleSync(wasmModule, {
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childThread: true,
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wasi,
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overwriteImports(importObject) {
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importObject.env = {
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...importObject.env,
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...importObject.napi,
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...importObject.emnapi,
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memory: wasmMemory,
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}
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},
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})
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},
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})
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globalThis.onmessage = function (e) {
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handler.handle(e)
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}
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