JSTests/wasm/stress/exception-thrown-out-of-wasm.js

import Builder from '../Builder.js'
import * as assert from '../assert.js'

{
    const b = new Builder();
    b.Type().End()
        .Function().End()
        .Exception().Signature({ params: [] }).End()
        .Export().Function("call")
            .Exception("foo", 0)
        .End()
        .Code()
            .Function("call", { params: [], ret: "i32" })
            .Throw(0)
            .I32Const(1)
            .End()
        .End()

    const bin = b.WebAssembly().get();
    const module = new WebAssembly.Module(bin);
    const instance = new WebAssembly.Instance(module);

    assert.throws(instance.exports.call, WebAssembly.Exception);
}