in lib/kcl/io_handler.js [24:34]
function IOHandler(inputFile, outputFile, errorFile) {
this._inputFile = inputFile;
this._outputFile = outputFile;
this._errorFile = errorFile;
this._readlineInterface = readline.createInterface(this._inputFile, this._outputFile);
this._onInputLineCallback = this._onInputLine.bind(this);
this._onInputCloseCallback = this._onInputClose.bind(this);
this._readlineInterface.on('line', this._onInputLineCallback);
this._readlineInterface.on('close', this._onInputCloseCallback);
}