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"use strict";
// Mediocre shim
var Worker;
var workerAdd = ";var __w=require('worker_threads');__w.parentPort.on('message',function(m){onmessage({data:m})}),postMessage=function(m,t){__w.parentPort.postMessage(m,t)},close=process.exit;self=global";
try {
Worker = require('worker_threads').Worker;
}
catch (e) {
}
exports.default = Worker ? function (c, _, msg, transfer, cb) {
var done = false;
var w = new Worker(c + workerAdd, { eval: true })
.on('error', function (e) { return cb(e, null); })
.on('message', function (m) { return cb(null, m); })
.on('exit', function (c) {
if (c && !done)
cb(new Error('exited with code ' + c), null);
});
w.postMessage(msg, transfer);
w.terminate = function () {
done = true;
return Worker.prototype.terminate.call(w);
};
return w;
} : function (_, __, ___, ____, cb) {
setImmediate(function () { return cb(new Error('async operations unsupported - update to Node 12+ (or Node 10-11 with the --experimental-worker CLI flag)'), null); });
var NOP = function () { };
return {
terminate: NOP,
postMessage: NOP
};
};
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