One.prototype._run_async = function(fn, args, callback, is_setter) {
var is_async;
var context = {
async: function() {
is_async = true;
return util.once(callback);
}
};
mix(context, this.context);
var result = fn.apply(context, args);
if (is_async) {
return;
}
if (is_setter) {
callback(null, result);
} else {
if (typeof result === 'string' || result instanceof Error) {
return callback(result);
}
// `result` tells whether the value is valid
// if `result` == true, err -> null
callback(!result || null);
}
};
Spawns.prototype._get_spawn = function(parsed) {
if (!is_windows) {
return spawn('sh', ['-c', parsed.origin], this._options);
}
var options = mix({
windowsVerbatimArguments: true
}, this._options);
return win_spawn(parsed.name, parsed.args, options);
};