1
0
Fork 0
mirror of https://github.com/denoland/deno.git synced 2024-12-22 15:24:46 -05:00
denoland-deno/tests/wasm_async.js
Ryan Dahl f2c50fae84
Fix silent failure of WebAssembly.instantiate() (#2548)
By making WASM compilation synchronous. We'll have to do more work to
make it properly async.
2019-06-20 09:04:34 -07:00

27 lines
810 B
JavaScript

// The following blob can be created by taking the following s-expr and pass
// it through wat2wasm.
// (module
// (func $add (param $a i32) (param $b i32) (result i32)
// local.get $a
// local.get $b
// i32.add)
// (export "add" (func $add))
// )
// prettier-ignore
const bytes = new Uint8Array([
0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x01, 0x07, 0x01, 0x60,
0x02, 0x7f, 0x7f, 0x01, 0x7f, 0x03, 0x02, 0x01, 0x00, 0x07, 0x07, 0x01,
0x03, 0x61, 0x64, 0x64, 0x00, 0x00, 0x0a, 0x09, 0x01, 0x07, 0x00, 0x20,
0x00, 0x20, 0x01, 0x6a, 0x0b
]);
async function main() {
let wasm = await WebAssembly.instantiate(bytes);
let result = wasm.instance.exports.add(1, 3);
console.log("1 + 3 =", result);
if (result != 4) {
throw Error("bad");
}
}
main();