typedux
Version:
Slightly adjusted Redux (awesome by default) for TS
44 lines • 1.54 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.propertyChain = exports.continuePropertyChain = void 0;
const guard_1 = require("@3fv/guard");
function continuePropertyChain(state, data, keyPath = []) {
keyPath = keyPath || [];
// noinspection DuplicatedCode
return new Proxy((overrideCallback) => {
// TRACK FIRST PROP ACCESS
const firstGet = keyPath.map(() => true);
// CHECK IF KEY SHOULD BE NUMBER
function resolveKey(value, key, index) {
if (firstGet[index]) {
if (Array.isArray(value)) {
const keyNum = guard_1.toNumber(key);
if (guard_1.isNumber(keyNum)) {
key = keyPath[index] = keyNum;
}
}
firstGet[index] = false;
}
return key;
}
const getter = (state) => keyPath.reduce((value, key, index) => {
return value[resolveKey(value, key, index)];
}, state);
return overrideCallback(getter, keyPath);
}, {
get: (target, key) => {
return continuePropertyChain(state, undefined, [...keyPath, key]);
}
});
}
exports.continuePropertyChain = continuePropertyChain;
/**
* Start a new prop chain of the type specified
*
* @param state
*/
function propertyChain(state = undefined) {
return continuePropertyChain(state, state);
}
exports.propertyChain = propertyChain;
//# sourceMappingURL=PropertyChain.js.map