forked from Team-Ortix/golang-wasm
60 lines
1.6 KiB
JavaScript
60 lines
1.6 KiB
JavaScript
|
const g = global || window || self
|
||
|
|
if (!g.__go_wasm__) {
|
||
|
|
g.__go_wasm__ = {};
|
||
|
|
}
|
||
|
|
|
||
|
|
const maxTime = new Date()
|
||
|
|
maxTime.setSeconds(maxTime.getSeconds() + 3) // if js does not initialize after 3 seconds, we allow it to start anyhow and print a warning
|
||
|
|
|
||
|
|
const bridge = g.__go_wasm__;
|
||
|
|
|
||
|
|
function sleep() {
|
||
|
|
return new Promise(requestAnimationFrame)
|
||
|
|
}
|
||
|
|
export default function (getBytes) {
|
||
|
|
|
||
|
|
async function init() {
|
||
|
|
const go = new g.Go();
|
||
|
|
let bytes = await getBytes
|
||
|
|
let result = await WebAssembly.instantiate(bytes, go.importObject);
|
||
|
|
go.run(result.instance);
|
||
|
|
setTimeout(() => {
|
||
|
|
if (bridge.__ready__ !== true) {
|
||
|
|
console.warn("Golang Wasm Bridge (__go_wasm__.__ready__) still not true after max time")
|
||
|
|
}
|
||
|
|
}, 3 * 1000)
|
||
|
|
}
|
||
|
|
|
||
|
|
init();
|
||
|
|
|
||
|
|
|
||
|
|
let proxy = new Proxy(
|
||
|
|
{},
|
||
|
|
{
|
||
|
|
get: (_, key) => {
|
||
|
|
return (...args) => {
|
||
|
|
return new Promise(async (res, rej) => {
|
||
|
|
while (bridge.__ready__ !== true) {
|
||
|
|
await sleep()
|
||
|
|
}
|
||
|
|
|
||
|
|
if (typeof bridge[key] !== 'function') {
|
||
|
|
res(bridge[key]);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
const returnObj = bridge[key].apply(undefined, args)
|
||
|
|
if (returnObj.error) {
|
||
|
|
rej(returnObj.error)
|
||
|
|
} else {
|
||
|
|
res(returnObj.result)
|
||
|
|
}
|
||
|
|
})
|
||
|
|
};
|
||
|
|
}
|
||
|
|
}
|
||
|
|
);
|
||
|
|
|
||
|
|
return proxy;
|
||
|
|
}
|