smart-types-ts
Version:
A collection of _Smart Types_ and _Smart Constructors_ which enable you to be more strict when defining your application's important types/interfaces.
43 lines (42 loc) • 2.05 kB
JavaScript
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.mkSmartObject = void 0;
const Apply_1 = require("fp-ts/lib/Apply");
const e = __importStar(require("fp-ts/lib/Either"));
const function_1 = require("fp-ts/lib/function");
const Semigroup_1 = require("fp-ts/lib/Semigroup");
// Stricter typing for Object.keys
const keys = Object.keys;
const mkSmartObject = (construct) => simpleObj => {
const validationResultsObj = keys(construct).reduce((accum, fieldName) => {
const inputVal = simpleObj[fieldName];
const smartConstructor = construct[fieldName];
accum[fieldName] = function_1.pipe(smartConstructor(inputVal), e.mapLeft(error => ({ [fieldName]: error })));
return accum;
}, {});
return function_1.pipe(Apply_1.sequenceS(e.getValidation(Semigroup_1.getObjectSemigroup()))(validationResultsObj),
// TODO try harder to actually make this crazy function compile although I'm not sure
// it actually matters. If it's not possible, this module should have very good test
// coverage to compensate for the lack of help from the compiler here.
e.map(x => x));
};
exports.mkSmartObject = mkSmartObject;