@ablestack/rdo
Version:
A library to facilitate building and running graphs of Reactive Domain Objects - connecting JSON data sources to reactive client applications
51 lines • 1.65 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.comparerUtils = exports.comparers = void 0;
const tslib_1 = require("tslib");
const equality_1 = tslib_1.__importDefault(require("@wry/equality"));
function apolloComparer(a, b) {
return equality_1.default(a, b);
}
function identityComparer(a, b) {
return a === b;
}
// function structuralComparer(a: any, b: any): boolean {
// // FUTURE
// // return deepEqual(a, b);
// return false;
// }
// function shallowComparer(a: any, b: any): boolean {
// // FUTURE
// //return deepEqual(a, b, 1);
// return false;
// }
function referentialComparer(a, b) {
return Object.is(a, b);
}
function _updateIfNotEqual(comparer, origVal, newVal, set) {
if (comparer(origVal, newVal))
return false;
origVal = newVal;
set(newVal);
return true;
}
exports.comparers = {
valueGraph: apolloComparer,
identity: identityComparer,
//structural: structuralComparer,
referential: referentialComparer,
};
exports.comparerUtils = {
valueGraph: {
updateIfNotEqual: (origVal, newVal, set) => _updateIfNotEqual(exports.comparers.valueGraph, origVal, newVal, set),
},
identity: {
updateIfNotEqual: (origVal, newVal, set) => _updateIfNotEqual(exports.comparers.identity, origVal, newVal, set),
},
//structural: structuralComparer,
referential: {
updateIfNotEqual: (origVal, newVal, set) => _updateIfNotEqual(exports.comparers.referential, origVal, newVal, set),
}
//shallow: shallowComparer,
};
//# sourceMappingURL=comparers.js.map