@sinclair/typebox
Version:
Json Schema Type Builder with Static Type Resolution for TypeScript
79 lines (77 loc) • 2.71 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.KeyOfPropertyKeys = KeyOfPropertyKeys;
exports.KeyOfPattern = KeyOfPattern;
const index_1 = require("../sets/index");
// ------------------------------------------------------------------
// TypeGuard
// ------------------------------------------------------------------
const kind_1 = require("../guard/kind");
// prettier-ignore
function FromRest(T) {
const Acc = [];
for (const L of T)
Acc.push(KeyOfPropertyKeys(L));
return Acc;
}
// prettier-ignore
function FromIntersect(T) {
const C = FromRest(T);
const R = (0, index_1.SetUnionMany)(C);
return R;
}
// prettier-ignore
function FromUnion(T) {
const C = FromRest(T);
const R = (0, index_1.SetIntersectMany)(C);
return R;
}
// prettier-ignore
function FromTuple(T) {
return T.map((_, I) => I.toString());
}
// prettier-ignore
function FromArray(_) {
return (['[number]']);
}
// prettier-ignore
function FromProperties(T) {
return (globalThis.Object.getOwnPropertyNames(T));
}
// ------------------------------------------------------------------
// FromPatternProperties
// ------------------------------------------------------------------
// prettier-ignore
function FromPatternProperties(patternProperties) {
if (!includePatternProperties)
return [];
const patternPropertyKeys = globalThis.Object.getOwnPropertyNames(patternProperties);
return patternPropertyKeys.map(key => {
return (key[0] === '^' && key[key.length - 1] === '$')
? key.slice(1, key.length - 1)
: key;
});
}
/** Returns a tuple of PropertyKeys derived from the given TSchema. */
// prettier-ignore
function KeyOfPropertyKeys(T) {
return ((0, kind_1.IsIntersect)(T) ? FromIntersect(T.allOf) :
(0, kind_1.IsUnion)(T) ? FromUnion(T.anyOf) :
(0, kind_1.IsTuple)(T) ? FromTuple(T.items ?? []) :
(0, kind_1.IsArray)(T) ? FromArray(T.items) :
(0, kind_1.IsObject)(T) ? FromProperties(T.properties) :
(0, kind_1.IsRecord)(T) ? FromPatternProperties(T.patternProperties) :
[]);
}
// ----------------------------------------------------------------
// KeyOfPattern
// ----------------------------------------------------------------
let includePatternProperties = false;
/** Returns a regular expression pattern derived from the given TSchema */
function KeyOfPattern(schema) {
includePatternProperties = true;
const keys = KeyOfPropertyKeys(schema);
includePatternProperties = false;
const pattern = keys.map((key) => `(${key})`);
return `^(${pattern.join('|')})$`;
}