(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
typeof define === 'function' && define.amd ? define(['exports'], factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.Superstruct = {}));
})(this, (function (exports) { 'use strict';
/**
* A `StructFailure` represents a single specific failure in validation.
*/
/**
* `StructError` objects are thrown (or returned) when validation fails.
*
* Validation logic is design to exit early for maximum performance. The error
* represents the first error encountered during validation. For more detail,
* the `error.failures` property is a generator function that can be run to
* continue validation and receive all the failures in the data.
*/
class StructError extends TypeError {
constructor(failure, failures) {
let cached;
const { message, explanation, ...rest } = failure;
const { path } = failure;
const msg = path.length === 0 ? message : `At path: ${path.join('.')} -- ${message}`;
super(explanation ?? msg);
if (explanation != null)
this.cause = msg;
Object.assign(this, rest);
this.name = this.constructor.name;
this.failures = () => {
return (cached ?? (cached = [failure, ...failures()]));
};
}
}
/**
* Check if a value is an iterator.
*/
function isIterable(x) {
return isObject(x) && typeof x[Symbol.iterator] === 'function';
}
/**
* Check if a value is a plain object.
*/
function isObject(x) {
return typeof x === 'object' && x != null;
}
/**
* Check if a value is a non-array object.
*/
function isNonArrayObject(x) {
return isObject(x) && !Array.isArray(x);
}
/**
* Check if a value is a plain object.
*/
function isPlainObject(x) {
if (Object.prototype.toString.call(x) !== '[object Object]') {
return false;
}
const prototype = Object.getPrototypeOf(x);
return prototype === null || prototype === Object.prototype;
}
/**
* Return a value as a printable string.
*/
function print(value) {
if (typeof value === 'symbol') {
return value.toString();
}
return typeof value === 'string' ? JSON.stringify(value) : `${value}`;
}
/**
* Shifts (removes and returns) the first value from the `input` iterator.
* Like `Array.prototype.shift()` but for an `Iterator`.
*/
function shiftIterator(input) {
const { done, value } = input.next();
return done ? undefined : value;
}
/**
* Convert a single validation result to a failure.
*/
function toFailure(result, context, struct, value) {
if (result === true) {
return;
}
else if (result === false) {
result = {};
}
else if (typeof result === 'string') {
result = { message: result };
}
const { path, branch } = context;
const { type } = struct;
const { refinement, message = `Expected a value of type \`${type}\`${refinement ? ` with refinement \`${refinement}\`` : ''}, but received: \`${print(value)}\``, } = result;
return {
value,
type,
refinement,
key: path[path.length - 1],
path,
branch,
...result,
message,
};
}
/**
* Convert a validation result to an iterable of failures.
*/
function* toFailures(result, context, struct, value) {
if (!isIterable(result)) {
result = [result];
}
for (const r of result) {
const failure = toFailure(r, context, struct, value);
if (failure) {
yield failure;
}
}
}
/**
* Check a value against a struct, traversing deeply into nested values, and
* returning an iterator of failures or success.
*/
function* run(value, struct, options = {}) {
const { path = [], branch = [value], coerce = false, mask = false } = options;
const ctx = { path, branch, mask };
if (coerce) {
value = struct.coercer(value, ctx);
}
let status = 'valid';
for (const failure of struct.validator(value, ctx)) {
failure.explanation = options.message;
status = 'not_valid';
yield [failure, undefined];
}
for (let [k, v, s] of struct.entries(value, ctx)) {
const ts = run(v, s, {
path: k === undefined ? path : [...path, k],
branch: k === undefined ? branch : [...branch, v],
coerce,
mask,
message: options.message,
});
for (const t of ts) {
if (t[0]) {
status = t[0].refinement != null ? 'not_refined' : 'not_valid';
yield [t[0], undefined];
}
else if (coerce) {
v = t[1];
if (k === undefined) {
value = v;
}
else if (value instanceof Map) {
value.set(k, v);
}
else if (value instanceof Set) {
value.add(v);
}
else if (isObject(value)) {
if (v !== undefined || k in value)
value[k] = v;
}
}
}
}
if (status !== 'not_valid') {
for (const failure of struct.refiner(value, ctx)) {
failure.explanation = options.message;
status = 'not_refined';
yield [failure, undefined];
}
}
if (status === 'valid') {
yield [undefined, value];
}
}
/**
* `Struct` objects encapsulate the validation logic for a specific type of
* values. Once constructed, you use the `assert`, `is` or `validate` helpers to
* validate unknown input data against the struct.
*/
class Struct {
constructor(props) {
const { type, schema, validator, refiner, coercer = (value) => value, entries = function* () { }, } = props;
this.type = type;
this.schema = schema;
this.entries = entries;
this.coercer = coercer;
if (validator) {
this.validator = (value, context) => {
const result = validator(value, context);
return toFailures(result, context, this, value);
};
}
else {
this.validator = () => [];
}
if (refiner) {
this.refiner = (value, context) => {
const result = refiner(value, context);
return toFailures(result, context, this, value);
};
}
else {
this.refiner = () => [];
}
}
/**
* Assert that a value passes the struct's validation, throwing if it doesn't.
*/
assert(value, message) {
return assert(value, this, message);
}
/**
* Create a value with the struct's coercion logic, then validate it.
*/
create(value, message) {
return create(value, this, message);
}
/**
* Check if a value passes the struct's validation.
*/
is(value) {
return is(value, this);
}
/**
* Mask a value, coercing and validating it, but returning only the subset of
* properties defined by the struct's schema. Masking applies recursively to
* props of `object` structs only.
*/
mask(value, message) {
return mask(value, this, message);
}
/**
* Validate a value with the struct's validation logic, returning a tuple
* representing the result.
*
* You may optionally pass `true` for the `coerce` argument to coerce
* the value before attempting to validate it. If you do, the result will
* contain the coerced result when successful. Also, `mask` will turn on
* masking of the unknown `object` props recursively if passed.
*/
validate(value, options = {}) {
return validate(value, this, options);
}
}
/**
* Assert that a value passes a struct, throwing if it doesn't.
*/
function assert(value, struct, message) {
const result = validate(value, struct, { message });
if (result[0]) {
throw result[0];
}
}
/**
* Create a value with the coercion logic of struct and validate it.
*/
function create(value, struct, message) {
const result = validate(value, struct, { coerce: true, message });
if (result[0]) {
throw result[0];
}
else {
return result[1];
}
}
/**
* Mask a value, returning only the subset of properties defined by a struct.
*/
function mask(value, struct, message) {
const result = validate(value, struct, { coerce: true, mask: true, message });
if (result[0]) {
throw result[0];
}
else {
return result[1];
}
}
/**
* Check if a value passes a struct.
*/
function is(value, struct) {
const result = validate(value, struct);
return !result[0];
}
/**
* Validate a value against a struct, returning an error if invalid, or the
* value (with potential coercion) if valid.
*/
function validate(value, struct, options = {}) {
const tuples = run(value, struct, options);
const tuple = shiftIterator(tuples);
if (tuple[0]) {
const error = new StructError(tuple[0], function* () {
for (const t of tuples) {
if (t[0]) {
yield t[0];
}
}
});
return [error, undefined];
}
else {
const v = tuple[1];
return [undefined, v];
}
}
function assign(...Structs) {
const isType = Structs[0].type === 'type';
const schemas = Structs.map((s) => s.schema);
const schema = Object.assign({}, ...schemas);
return isType ? type(schema) : object(schema);
}
/**
* Define a new struct type with a custom validation function.
*/
function define(name, validator) {
return new Struct({ type: name, schema: null, validator });
}
/**
* Create a new struct based on an existing struct, but the value is allowed to
* be `undefined`. `log` will be called if the value is not `undefined`.
*/
function deprecated(struct, log) {
return new Struct({
...struct,
refiner: (value, ctx) => value === undefined || struct.refiner(value, ctx),
validator(value, ctx) {
if (value === undefined) {
return true;
}
else {
log(value, ctx);
return struct.validator(value, ctx);
}
},
});
}
/**
* Create a struct with dynamic validation logic.
*
* The callback will receive the value currently being validated, and must
* return a struct object to validate it with. This can be useful to model
* validation logic that changes based on its input.
*/
function dynamic(fn) {
return new Struct({
type: 'dynamic',
schema: null,
*entries(value, ctx) {
const struct = fn(value, ctx);
yield* struct.entries(value, ctx);
},
validator(value, ctx) {
const struct = fn(value, ctx);
return struct.validator(value, ctx);
},
coercer(value, ctx) {
const struct = fn(value, ctx);
return struct.coercer(value, ctx);
},
refiner(value, ctx) {
const struct = fn(value, ctx);
return struct.refiner(value, ctx);
},
});
}
/**
* Create a struct with lazily evaluated validation logic.
*
* The first time validation is run with the struct, the callback will be called
* and must return a struct object to use. This is useful for cases where you
* want to have self-referential structs for nested data structures to avoid a
* circular definition problem.
*/
function lazy(fn) {
let struct;
return new Struct({
type: 'lazy',
schema: null,
*entries(value, ctx) {
struct ?? (struct = fn());
yield* struct.entries(value, ctx);
},
validator(value, ctx) {
struct ?? (struct = fn());
return struct.validator(value, ctx);
},
coercer(value, ctx) {
struct ?? (struct = fn());
return struct.coercer(value, ctx);
},
refiner(value, ctx) {
struct ?? (struct = fn());
return struct.refiner(value, ctx);
},
});
}
/**
* Create a new struct based on an existing object struct, but excluding
* specific properties.
*
* Like TypeScript's `Omit` utility.
*/
function omit(struct, keys) {
const { schema } = struct;
const subschema = { ...schema };
for (const key of keys) {
delete subschema[key];
}
switch (struct.type) {
case 'type':
return type(subschema);
default:
return object(subschema);
}
}
/**
* Create a new struct based on an existing object struct, but with all of its
* properties allowed to be `undefined`.
*
* Like TypeScript's `Partial` utility.
*/
function partial(struct) {
const isStruct = struct instanceof Struct;
const schema = isStruct ? { ...struct.schema } : { ...struct };
for (const key in schema) {
schema[key] = optional(schema[key]);
}
if (isStruct && struct.type === 'type') {
return type(schema);
}
return object(schema);
}
/**
* Create a new struct based on an existing object struct, but only including
* specific properties.
*
* Like TypeScript's `Pick` utility.
*/
function pick(struct, keys) {
const { schema } = struct;
const subschema = {};
for (const key of keys) {
subschema[key] = schema[key];
}
switch (struct.type) {
case 'type':
return type(subschema);
default:
return object(subschema);
}
}
/**
* Define a new struct type with a custom validation function.
*
* @deprecated This function has been renamed to `define`.
*/
function struct(name, validator) {
console.warn('superstruct@0.11 - The `struct` helper has been renamed to `define`.');
return define(name, validator);
}
/**
* Ensure that any value passes validation.
*/
function any() {
return define('any', () => true);
}
function array(Element) {
return new Struct({
type: 'array',
schema: Element,
*entries(value) {
if (Element && Array.isArray(value)) {
for (const [i, v] of value.entries()) {
yield [i, v, Element];
}
}
},
coercer(value) {
return Array.isArray(value) ? value.slice() : value;
},
validator(value) {
return (Array.isArray(value) ||
`Expected an array value, but received: ${print(value)}`);
},
});
}
/**
* Ensure that a value is a bigint.
*/
function bigint() {
return define('bigint', (value) => {
return typeof value === 'bigint';
});
}
/**
* Ensure that a value is a boolean.
*/
function boolean() {
return define('boolean', (value) => {
return typeof value === 'boolean';
});
}
/**
* Ensure that a value is a valid `Date`.
*
* Note: this also ensures that the value is *not* an invalid `Date` object,
* which can occur when parsing a date fails but still returns a `Date`.
*/
function date() {
return define('date', (value) => {
return ((value instanceof Date && !isNaN(value.getTime())) ||
`Expected a valid \`Date\` object, but received: ${print(value)}`);
});
}
function enums(values) {
const schema = {};
const description = values.map((v) => print(v)).join();
for (const key of values) {
schema[key] = key;
}
return new Struct({
type: 'enums',
schema,
validator(value) {
return (values.includes(value) ||
`Expected one of \`${description}\`, but received: ${print(value)}`);
},
});
}
/**
* Ensure that a value is a function.
*/
function func() {
return define('func', (value) => {
return (typeof value === 'function' ||
`Expected a function, but received: ${print(value)}`);
});
}
/**
* Ensure that a value is an instance of a specific class.
*/
function instance(Class) {
return define('instance', (value) => {
return (value instanceof Class ||
`Expected a \`${Class.name}\` instance, but received: ${print(value)}`);
});
}
/**
* Ensure that a value is an integer.
*/
function integer() {
return define('integer', (value) => {
return ((typeof value === 'number' && !isNaN(value) && Number.isInteger(value)) ||
`Expected an integer, but received: ${print(value)}`);
});
}
/**
* Ensure that a value matches all of a set of types.
*/
function intersection(Structs) {
return new Struct({
type: 'intersection',
schema: null,
*entries(value, ctx) {
for (const S of Structs) {
yield* S.entries(value, ctx);
}
},
*validator(value, ctx) {
for (const S of Structs) {
yield* S.validator(value, ctx);
}
},
*refiner(value, ctx) {
for (const S of Structs) {
yield* S.refiner(value, ctx);
}
},
});
}
function literal(constant) {
const description = print(constant);
const t = typeof constant;
return new Struct({
type: 'literal',
schema: t === 'string' || t === 'number' || t === 'boolean' ? constant : null,
validator(value) {
return (value === constant ||
`Expected the literal \`${description}\`, but received: ${print(value)}`);
},
});
}
function map(Key, Value) {
return new Struct({
type: 'map',
schema: null,
*entries(value) {
if (Key && Value && value instanceof Map) {
for (const [k, v] of value.entries()) {
yield [k, k, Key];
yield [k, v, Value];
}
}
},
coercer(value) {
return value instanceof Map ? new Map(value) : value;
},
validator(value) {
return (value instanceof Map ||
`Expected a \`Map\` object, but received: ${print(value)}`);
},
});
}
/**
* Ensure that no value ever passes validation.
*/
function never() {
return define('never', () => false);
}
/**
* Augment an existing struct to allow `null` values.
*/
function nullable(struct) {
return new Struct({
...struct,
validator: (value, ctx) => value === null || struct.validator(value, ctx),
refiner: (value, ctx) => value === null || struct.refiner(value, ctx),
});
}
/**
* Ensure that a value is a number.
*/
function number() {
return define('number', (value) => {
return ((typeof value === 'number' && !isNaN(value)) ||
`Expected a number, but received: ${print(value)}`);
});
}
function object(schema) {
const knowns = schema ? Object.keys(schema) : [];
const Never = never();
return new Struct({
type: 'object',
schema: schema ? schema : null,
*entries(value) {
if (schema && isObject(value)) {
const unknowns = new Set(Object.keys(value));
for (const key of knowns) {
unknowns.delete(key);
yield [key, value[key], schema[key]];
}
for (const key of unknowns) {
yield [key, value[key], Never];
}
}
},
validator(value) {
return (isNonArrayObject(value) ||
`Expected an object, but received: ${print(value)}`);
},
coercer(value, ctx) {
if (!isNonArrayObject(value)) {
return value;
}
const coerced = { ...value };
// The `object` struct has special behaviour enabled by the mask flag.
// When masking, properties that are not in the schema are deleted from
// the coerced object instead of eventually failing validaiton.
if (ctx.mask && schema) {
for (const key in coerced) {
if (schema[key] === undefined) {
delete coerced[key];
}
}
}
return coerced;
},
});
}
/**
* Augment a struct to allow `undefined` values.
*/
function optional(struct) {
return new Struct({
...struct,
validator: (value, ctx) => value === undefined || struct.validator(value, ctx),
refiner: (value, ctx) => value === undefined || struct.refiner(value, ctx),
});
}
/**
* Ensure that a value is an object with keys and values of specific types, but
* without ensuring any specific shape of properties.
*
* Like TypeScript's `Record` utility.
*/
function record(Key, Value) {
return new Struct({
type: 'record',
schema: null,
*entries(value) {
if (isObject(value)) {
for (const k in value) {
const v = value[k];
yield [k, k, Key];
yield [k, v, Value];
}
}
},
validator(value) {
return (isNonArrayObject(value) ||
`Expected an object, but received: ${print(value)}`);
},
coercer(value) {
return isNonArrayObject(value) ? { ...value } : value;
},
});
}
/**
* Ensure that a value is a `RegExp`.
*
* Note: this does not test the value against the regular expression! For that
* you need to use the `pattern()` refinement.
*/
function regexp() {
return define('regexp', (value) => {
return value instanceof RegExp;
});
}
function set(Element) {
return new Struct({
type: 'set',
schema: null,
*entries(value) {
if (Element && value instanceof Set) {
for (const v of value) {
yield [v, v, Element];
}
}
},
coercer(value) {
return value instanceof Set ? new Set(value) : value;
},
validator(value) {
return (value instanceof Set ||
`Expected a \`Set\` object, but received: ${print(value)}`);
},
});
}
/**
* Ensure that a value is a string.
*/
function string() {
return define('string', (value) => {
return (typeof value === 'string' ||
`Expected a string, but received: ${print(value)}`);
});
}
/**
* Ensure that a value is a tuple of a specific length, and that each of its
* elements is of a specific type.
*/
function tuple(Structs) {
const Never = never();
return new Struct({
type: 'tuple',
schema: null,
*entries(value) {
if (Array.isArray(value)) {
const length = Math.max(Structs.length, value.length);
for (let i = 0; i < length; i++) {
yield [i, value[i], Structs[i] || Never];
}
}
},
validator(value) {
return (Array.isArray(value) ||
`Expected an array, but received: ${print(value)}`);
},
coercer(value) {
return Array.isArray(value) ? value.slice() : value;
},
});
}
/**
* Ensure that a value has a set of known properties of specific types.
*
* Note: Unrecognized properties are allowed and untouched. This is similar to
* how TypeScript's structural typing works.
*/
function type(schema) {
const keys = Object.keys(schema);
return new Struct({
type: 'type',
schema,
*entries(value) {
if (isObject(value)) {
for (const k of keys) {
yield [k, value[k], schema[k]];
}
}
},
validator(value) {
return (isNonArrayObject(value) ||
`Expected an object, but received: ${print(value)}`);
},
coercer(value) {
return isNonArrayObject(value) ? { ...value } : value;
},
});
}
/**
* Ensure that a value matches one of a set of types.
*/
function union(Structs) {
const description = Structs.map((s) => s.type).join(' | ');
return new Struct({
type: 'union',
schema: null,
coercer(value, ctx) {
for (const S of Structs) {
const [error, coerced] = S.validate(value, {
coerce: true,
mask: ctx.mask,
});
if (!error) {
return coerced;
}
}
return value;
},
validator(value, ctx) {
const failures = [];
for (const S of Structs) {
const [...tuples] = run(value, S, ctx);
const [first] = tuples;
if (!first[0]) {
return [];
}
else {
for (const [failure] of tuples) {
if (failure) {
failures.push(failure);
}
}
}
}
return [
`Expected the value to satisfy a union of \`${description}\`, but received: ${print(value)}`,
...failures,
];
},
});
}
/**
* Ensure that any value passes validation, without widening its type to `any`.
*/
function unknown() {
return define('unknown', () => true);
}
/**
* Augment a `Struct` to add an additional coercion step to its input.
*
* This allows you to transform input data before validating it, to increase the
* likelihood that it passes validation—for example for default values, parsing
* different formats, etc.
*
* Note: You must use `create(value, Struct)` on the value to have the coercion
* take effect! Using simply `assert()` or `is()` will not use coercion.
*/
function coerce(struct, condition, coercer) {
return new Struct({
...struct,
coercer: (value, ctx) => {
return is(value, condition)
? struct.coercer(coercer(value, ctx), ctx)
: struct.coercer(value, ctx);
},
});
}
/**
* Augment a struct to replace `undefined` values with a default.
*
* Note: You must use `create(value, Struct)` on the value to have the coercion
* take effect! Using simply `assert()` or `is()` will not use coercion.
*/
function defaulted(struct, fallback, options = {}) {
return coerce(struct, unknown(), (x) => {
const f = typeof fallback === 'function' ? fallback() : fallback;
if (x === undefined) {
return f;
}
if (!options.strict && isPlainObject(x) && isPlainObject(f)) {
const ret = { ...x };
let changed = false;
for (const key in f) {
if (ret[key] === undefined) {
ret[key] = f[key];
changed = true;
}
}
if (changed) {
return ret;
}
}
return x;
});
}
/**
* Augment a struct to trim string inputs.
*
* Note: You must use `create(value, Struct)` on the value to have the coercion
* take effect! Using simply `assert()` or `is()` will not use coercion.
*/
function trimmed(struct) {
return coerce(struct, string(), (x) => x.trim());
}
/**
* Ensure that a string, array, map, or set is empty.
*/
function empty(struct) {
return refine(struct, 'empty', (value) => {
const size = getSize(value);
return (size === 0 ||
`Expected an empty ${struct.type} but received one with a size of \`${size}\``);
});
}
function getSize(value) {
if (value instanceof Map || value instanceof Set) {
return value.size;
}
else {
return value.length;
}
}
/**
* Ensure that a number or date is below a threshold.
*/
function max(struct, threshold, options = {}) {
const { exclusive } = options;
return refine(struct, 'max', (value) => {
return exclusive
? value < threshold
: value <= threshold ||
`Expected a ${struct.type} less than ${exclusive ? '' : 'or equal to '}${threshold} but received \`${value}\``;
});
}
/**
* Ensure that a number or date is above a threshold.
*/
function min(struct, threshold, options = {}) {
const { exclusive } = options;
return refine(struct, 'min', (value) => {
return exclusive
? value > threshold
: value >= threshold ||
`Expected a ${struct.type} greater than ${exclusive ? '' : 'or equal to '}${threshold} but received \`${value}\``;
});
}
/**
* Ensure that a string, array, map or set is not empty.
*/
function nonempty(struct) {
return refine(struct, 'nonempty', (value) => {
const size = getSize(value);
return (size > 0 || `Expected a nonempty ${struct.type} but received an empty one`);
});
}
/**
* Ensure that a string matches a regular expression.
*/
function pattern(struct, regexp) {
return refine(struct, 'pattern', (value) => {
return (regexp.test(value) ||
`Expected a ${struct.type} matching \`/${regexp.source}/\` but received "${value}"`);
});
}
/**
* Ensure that a string, array, number, date, map, or set has a size (or length, or time) between `min` and `max`.
*/
function size(struct, min, max = min) {
const expected = `Expected a ${struct.type}`;
const of = min === max ? `of \`${min}\`` : `between \`${min}\` and \`${max}\``;
return refine(struct, 'size', (value) => {
if (typeof value === 'number' || value instanceof Date) {
return ((min <= value && value <= max) ||
`${expected} ${of} but received \`${value}\``);
}
else if (value instanceof Map || value instanceof Set) {
const { size } = value;
return ((min <= size && size <= max) ||
`${expected} with a size ${of} but received one with a size of \`${size}\``);
}
else {
const { length } = value;
return ((min <= length && length <= max) ||
`${expected} with a length ${of} but received one with a length of \`${length}\``);
}
});
}
/**
* Augment a `Struct` to add an additional refinement to the validation.
*
* The refiner function is guaranteed to receive a value of the struct's type,
* because the struct's existing validation will already have passed. This
* allows you to layer additional validation on top of existing structs.
*/
function refine(struct, name, refiner) {
return new Struct({
...struct,
*refiner(value, ctx) {
yield* struct.refiner(value, ctx);
const result = refiner(value, ctx);
const failures = toFailures(result, ctx, struct, value);
for (const failure of failures) {
yield { ...failure, refinement: name };
}
},
});
}
exports.Struct = Struct;
exports.StructError = StructError;
exports.any = any;
exports.array = array;
exports.assert = assert;
exports.assign = assign;
exports.bigint = bigint;
exports.boolean = boolean;
exports.coerce = coerce;
exports.create = create;
exports.date = date;
exports.defaulted = defaulted;
exports.define = define;
exports.deprecated = deprecated;
exports.dynamic = dynamic;
exports.empty = empty;
exports.enums = enums;
exports.func = func;
exports.instance = instance;
exports.integer = integer;
exports.intersection = intersection;
exports.is = is;
exports.lazy = lazy;
exports.literal = literal;
exports.map = map;
exports.mask = mask;
exports.max = max;
exports.min = min;
exports.never = never;
exports.nonempty = nonempty;
exports.nullable = nullable;
exports.number = number;
exports.object = object;
exports.omit = omit;
exports.optional = optional;
exports.partial = partial;
exports.pattern = pattern;
exports.pick = pick;
exports.record = record;
exports.refine = refine;
exports.regexp = regexp;
exports.set = set;
exports.size = size;
exports.string = string;
exports.struct = struct;
exports.trimmed = trimmed;
exports.tuple = tuple;
exports.type = type;
exports.union = union;
exports.unknown = unknown;
exports.validate = validate;
}));
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