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[WIP] esm: basic wasm module env #27815

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[WIP] esm: basic wasm module env #27815

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18 changes: 16 additions & 2 deletions lib/internal/modules/esm/translators.js
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Original file line number Diff line number Diff line change
Expand Up @@ -159,11 +159,25 @@ translators.set('wasm', async function(url) {
}

const imports =
WebAssembly.Module.imports(compiled).map(({ module }) => module);
WebAssembly.Module.imports(compiled).map(({ module }) => module).filter((module) => module != 'env');
const exports = WebAssembly.Module.exports(compiled).map(({ name }) => name);

return createDynamicModule(imports, exports, url, (reflect) => {
const { exports } = new WebAssembly.Instance(compiled, reflect.imports);
const env = {
__memory_base: 0,
memory: new WebAssembly.Memory({
initial: 512
}),
__table_base: 0,
table: new WebAssembly.Table({
initial: 0,
element: 'anyfunc'
})
};
const { exports } = new WebAssembly.Instance(compiled, {
...reflect.imports,
env
});
for (const expt of Object.keys(exports))
reflect.exports[expt].set(exports[expt]);
});
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