Function _createClosure

modules/core/_common.js:100–111

(thisArg, handlerName, swapped, connectObject)

}

function _createClosure(thisArg, handlerName, swapped, connectObject) {
    connectObject ??= thisArg;

    if (swapped) {
        throw new Error('Unsupported template signal flag "swapped"');
    } else if (typeof thisArg[handlerName] === 'undefined') {
        throw new Error(`A handler called ${handlerName} was not ` +
            `defined on ${thisArg}`);
    }

    return thisArg[handlerName].bind(connectObject);
}

function _createBuilderConnectFunc(klass) {
    const {GObject} = imports.gi;