trpc-shield
Version:
tRPC permissions as another layer of abstraction!
95 lines • 2.34 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.isRule = isRule;
exports.isLogicRule = isLogicRule;
exports.isRuleFunction = isRuleFunction;
exports.isRuleFieldMap = isRuleFieldMap;
exports.flattenObjectOf = flattenObjectOf;
exports.withDefault = withDefault;
const rules_1 = require("./rules");
/**
*
* @param x
*
* Makes sure that a certain field is a rule.
*
*/
function isRule(x) {
return x instanceof rules_1.Rule || ((x === null || x === void 0 ? void 0 : x.constructor) && x.constructor.name === 'Rule');
}
/**
*
* @param x
*
* Makes sure that a certain field is a logic rule.
*
*/
function isLogicRule(x) {
return (x instanceof rules_1.LogicRule ||
((x === null || x === void 0 ? void 0 : x.constructor) &&
(x.constructor.name === 'RuleOr' ||
x.constructor.name === 'RuleAnd' ||
x.constructor.name === 'RuleChain' ||
x.constructor.name === 'RuleRace' ||
x.constructor.name === 'RuleNot' ||
x.constructor.name === 'RuleTrue' ||
x.constructor.name === 'RuleFalse')));
}
/**
*
* @param x
*
* Makes sure that a certain field is a rule or a logic rule.
*
*/
function isRuleFunction(x) {
return isRule(x) || isLogicRule(x);
}
/**
*
* @param x
*
* Determines whether a certain field is rule field map or not.
*
*/
function isRuleFieldMap(x) {
return typeof x === 'object' && Object.values(x).every((rule) => isRuleFunction(rule));
}
/**
*
* @param obj
* @param func
*
* Flattens object of particular type by checking if the leaf
* evaluates to true from particular function.
*
*/
function flattenObjectOf(obj, f) {
const values = Object.keys(obj).reduce((acc, key) => {
const val = obj[key];
if (f(val)) {
return [...acc, val];
}
else if (typeof val === 'object' && !f(val)) {
return [...acc, ...flattenObjectOf(val, f)];
}
else {
return acc;
}
}, []);
return values;
}
/**
*
* Returns fallback is provided value is undefined
*
* @param fallback
*/
function withDefault(fallback) {
return (value) => {
if (value === undefined)
return fallback;
return value;
};
}
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