var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
/**
* @since 1.0.0
*/
import { isLeft, left, right } from 'fp-ts/es6/Either';
/**
* @category Decode error
* @since 1.0.0
*/
export var failures = left;
/**
* @category Decode error
* @since 1.0.0
*/
export var failure = function (value, context, message) {
return failures([{ value: value, context: context, message: message }]);
};
/**
* @category Decode error
* @since 1.0.0
*/
export var success = right;
/**
* @category Codec
* @since 1.0.0
*/
var Type = /** @class */ (function () {
function Type(
/** a unique name for this codec */
name,
/** a custom type guard */
is,
/** succeeds if a value of type I can be decoded to a value of type A */
validate,
/** converts a value of type A to a value of type O */
encode) {
this.name = name;
this.is = is;
this.validate = validate;
this.encode = encode;
this.decode = this.decode.bind(this);
}
/**
* @since 1.0.0
*/
Type.prototype.pipe = function (ab, name) {
var _this = this;
if (name === void 0) { name = "pipe(".concat(this.name, ", ").concat(ab.name, ")"); }
return new Type(name, ab.is, function (i, c) {
var e = _this.validate(i, c);
if (isLeft(e)) {
return e;
}
return ab.validate(e.right, c);
}, this.encode === identity && ab.encode === identity ? identity : function (b) { return _this.encode(ab.encode(b)); });
};
/**
* @since 1.0.0
*/
Type.prototype.asDecoder = function () {
return this;
};
/**
* @since 1.0.0
*/
Type.prototype.asEncoder = function () {
return this;
};
/**
* a version of `validate` with a default context
* @since 1.0.0
*/
Type.prototype.decode = function (i) {
return this.validate(i, [{ key: '', type: this, actual: i }]);
};
return Type;
}());
export { Type };
// -------------------------------------------------------------------------------------
// utils
// -------------------------------------------------------------------------------------
/**
* @since 1.0.0
*/
export var identity = function (a) { return a; };
/**
* @since 1.0.0
*/
export function getFunctionName(f) {
return f.displayName || f.name || "<function".concat(f.length, ">");
}
/**
* @since 1.0.0
*/
export function getContextEntry(key, decoder) {
return { key: key, type: decoder };
}
/**
* @since 1.0.0
*/
export function appendContext(c, key, decoder, actual) {
var len = c.length;
var r = Array(len + 1);
for (var i = 0; i < len; i++) {
r[i] = c[i];
}
r[len] = { key: key, type: decoder, actual: actual };
return r;
}
function pushAll(xs, ys) {
var l = ys.length;
for (var i = 0; i < l; i++) {
xs.push(ys[i]);
}
}
var hasOwnProperty = Object.prototype.hasOwnProperty;
function getNameFromProps(props) {
return Object.keys(props)
.map(function (k) { return "".concat(k, ": ").concat(props[k].name); })
.join(', ');
}
function useIdentity(codecs) {
for (var i = 0; i < codecs.length; i++) {
if (codecs[i].encode !== identity) {
return false;
}
}
return true;
}
function getInterfaceTypeName(props) {
return "{ ".concat(getNameFromProps(props), " }");
}
function getPartialTypeName(inner) {
return "Partial<".concat(inner, ">");
}
function enumerableRecord(keys, domain, codomain, name) {
if (name === void 0) { name = "{ [K in ".concat(domain.name, "]: ").concat(codomain.name, " }"); }
var len = keys.length;
return new DictionaryType(name, function (u) { return UnknownRecord.is(u) && keys.every(function (k) { return codomain.is(u[k]); }); }, function (u, c) {
var e = UnknownRecord.validate(u, c);
if (isLeft(e)) {
return e;
}
var o = e.right;
var a = {};
var errors = [];
var changed = false;
for (var i = 0; i < len; i++) {
var k = keys[i];
var ok = o[k];
var codomainResult = codomain.validate(ok, appendContext(c, k, codomain, ok));
if (isLeft(codomainResult)) {
pushAll(errors, codomainResult.left);
}
else {
var vok = codomainResult.right;
changed = changed || vok !== ok;
a[k] = vok;
}
}
return errors.length > 0 ? failures(errors) : success((changed || Object.keys(o).length !== len ? a : o));
}, codomain.encode === identity
? identity
: function (a) {
var s = {};
for (var i = 0; i < len; i++) {
var k = keys[i];
s[k] = codomain.encode(a[k]);
}
return s;
}, domain, codomain);
}
/**
* @internal
*/
export function getDomainKeys(domain) {
var _a;
if (isLiteralC(domain)) {
var literal_1 = domain.value;
if (string.is(literal_1)) {
return _a = {}, _a[literal_1] = null, _a;
}
}
else if (isKeyofC(domain)) {
return domain.keys;
}
else if (isUnionC(domain)) {
var keys = domain.types.map(function (type) { return getDomainKeys(type); });
return keys.some(undefinedType.is) ? undefined : Object.assign.apply(Object, __spreadArray([{}], keys, false));
}
return undefined;
}
function nonEnumerableRecord(domain, codomain, name) {
if (name === void 0) { name = "{ [K in ".concat(domain.name, "]: ").concat(codomain.name, " }"); }
return new DictionaryType(name, function (u) {
if (UnknownRecord.is(u)) {
return Object.keys(u).every(function (k) { return domain.is(k) && codomain.is(u[k]); });
}
return isAnyC(codomain) && Array.isArray(u);
}, function (u, c) {
if (UnknownRecord.is(u)) {
var a = {};
var errors = [];
var keys = Object.keys(u);
var len = keys.length;
var changed = false;
for (var i = 0; i < len; i++) {
var k = keys[i];
var ok = u[k];
var domainResult = domain.validate(k, appendContext(c, k, domain, k));
if (isLeft(domainResult)) {
pushAll(errors, domainResult.left);
}
else {
var vk = domainResult.right;
changed = changed || vk !== k;
k = vk;
var codomainResult = codomain.validate(ok, appendContext(c, k, codomain, ok));
if (isLeft(codomainResult)) {
pushAll(errors, codomainResult.left);
}
else {
var vok = codomainResult.right;
changed = changed || vok !== ok;
a[k] = vok;
}
}
}
return errors.length > 0 ? failures(errors) : success((changed ? a : u));
}
if (isAnyC(codomain) && Array.isArray(u)) {
return success(u);
}
return failure(u, c);
}, domain.encode === identity && codomain.encode === identity
? identity
: function (a) {
var s = {};
var keys = Object.keys(a);
var len = keys.length;
for (var i = 0; i < len; i++) {
var k = keys[i];
s[String(domain.encode(k))] = codomain.encode(a[k]);
}
return s;
}, domain, codomain);
}
function getUnionName(codecs) {
return '(' + codecs.map(function (type) { return type.name; }).join(' | ') + ')';
}
/**
* @internal
*/
// eslint-disable-next-line @typescript-eslint/explicit-module-boundary-types
export function mergeAll(base, us) {
var equal = true;
var primitive = true;
var baseIsNotADictionary = !UnknownRecord.is(base);
for (var _i = 0, us_1 = us; _i < us_1.length; _i++) {
var u = us_1[_i];
if (u !== base) {
equal = false;
}
if (UnknownRecord.is(u)) {
primitive = false;
}
}
if (equal) {
return base;
}
else if (primitive) {
return us[us.length - 1];
}
var r = {};
for (var _a = 0, us_2 = us; _a < us_2.length; _a++) {
var u = us_2[_a];
for (var k in u) {
if (!hasOwnProperty.call(r, k) || baseIsNotADictionary || u[k] !== base[k]) {
r[k] = u[k];
}
}
}
return r;
}
function getProps(codec) {
switch (codec._tag) {
case 'RefinementType':
case 'ReadonlyType':
return getProps(codec.type);
case 'InterfaceType':
case 'StrictType':
case 'PartialType':
return codec.props;
case 'IntersectionType':
return codec.types.reduce(function (props, type) { return Object.assign(props, getProps(type)); }, {});
}
}
function stripKeys(o, props) {
var keys = Object.getOwnPropertyNames(o);
var shouldStrip = false;
var r = {};
for (var i = 0; i < keys.length; i++) {
var key = keys[i];
if (!hasOwnProperty.call(props, key)) {
shouldStrip = true;
}
else {
r[key] = o[key];
}
}
return shouldStrip ? r : o;
}
function getExactTypeName(codec) {
if (isTypeC(codec)) {
return "{| ".concat(getNameFromProps(codec.props), " |}");
}
else if (isPartialC(codec)) {
return getPartialTypeName("{| ".concat(getNameFromProps(codec.props), " |}"));
}
return "Exact<".concat(codec.name, ">");
}
function isNonEmpty(as) {
return as.length > 0;
}
/**
* @internal
*/
export var emptyTags = {};
function intersect(a, b) {
var r = [];
for (var _i = 0, a_1 = a; _i < a_1.length; _i++) {
var v = a_1[_i];
if (b.indexOf(v) !== -1) {
r.push(v);
}
}
return r;
}
function mergeTags(a, b) {
if (a === emptyTags) {
return b;
}
if (b === emptyTags) {
return a;
}
var r = Object.assign({}, a);
for (var k in b) {
if (hasOwnProperty.call(a, k)) {
var intersection_1 = intersect(a[k], b[k]);
if (isNonEmpty(intersection_1)) {
r[k] = intersection_1;
}
else {
r = emptyTags;
break;
}
}
else {
r[k] = b[k];
}
}
return r;
}
function intersectTags(a, b) {
if (a === emptyTags || b === emptyTags) {
return emptyTags;
}
var r = emptyTags;
for (var k in a) {
if (hasOwnProperty.call(b, k)) {
var intersection_2 = intersect(a[k], b[k]);
if (intersection_2.length === 0) {
if (r === emptyTags) {
r = {};
}
r[k] = a[k].concat(b[k]);
}
}
}
return r;
}
// tslint:disable-next-line: deprecation
function isAnyC(codec) {
return codec._tag === 'AnyType';
}
function isLiteralC(codec) {
return codec._tag === 'LiteralType';
}
function isKeyofC(codec) {
return codec._tag === 'KeyofType';
}
function isTypeC(codec) {
return codec._tag === 'InterfaceType';
}
function isPartialC(codec) {
return codec._tag === 'PartialType';
}
// tslint:disable-next-line: deprecation
function isStrictC(codec) {
return codec._tag === 'StrictType';
}
function isExactC(codec) {
return codec._tag === 'ExactType';
}
// tslint:disable-next-line: deprecation
function isRefinementC(codec) {
return codec._tag === 'RefinementType';
}
function isIntersectionC(codec) {
return codec._tag === 'IntersectionType';
}
function isUnionC(codec) {
return codec._tag === 'UnionType';
}
function isRecursiveC(codec) {
return codec._tag === 'RecursiveType';
}
var lazyCodecs = [];
/**
* @internal
*/
export function getTags(codec) {
if (lazyCodecs.indexOf(codec) !== -1) {
return emptyTags;
}
if (isTypeC(codec) || isStrictC(codec)) {
var index = emptyTags;
// tslint:disable-next-line: forin
for (var k in codec.props) {
var prop = codec.props[k];
if (isLiteralC(prop)) {
if (index === emptyTags) {
index = {};
}
index[k] = [prop.value];
}
}
return index;
}
else if (isExactC(codec) || isRefinementC(codec)) {
return getTags(codec.type);
}
else if (isIntersectionC(codec)) {
return codec.types.reduce(function (tags, codec) { return mergeTags(tags, getTags(codec)); }, emptyTags);
}
else if (isUnionC(codec)) {
return codec.types.slice(1).reduce(function (tags, codec) { return intersectTags(tags, getTags(codec)); }, getTags(codec.types[0]));
}
else if (isRecursiveC(codec)) {
lazyCodecs.push(codec);
var tags = getTags(codec.type);
lazyCodecs.pop();
return tags;
}
return emptyTags;
}
/**
* @internal
*/
export function getIndex(codecs) {
var tags = getTags(codecs[0]);
var keys = Object.keys(tags);
var len = codecs.length;
var _loop_1 = function (k) {
var all = tags[k].slice();
var index = [tags[k]];
for (var i = 1; i < len; i++) {
var codec = codecs[i];
var ctags = getTags(codec);
var values = ctags[k];
// tslint:disable-next-line: strict-type-predicates
if (values === undefined) {
return "continue-keys";
}
else {
if (values.some(function (v) { return all.indexOf(v) !== -1; })) {
return "continue-keys";
}
else {
all.push.apply(all, values);
index.push(values);
}
}
}
return { value: [k, index] };
};
keys: for (var _i = 0, keys_1 = keys; _i < keys_1.length; _i++) {
var k = keys_1[_i];
var state_1 = _loop_1(k);
if (typeof state_1 === "object")
return state_1.value;
switch (state_1) {
case "continue-keys": continue keys;
}
}
return undefined;
}
// -------------------------------------------------------------------------------------
// primitives
// -------------------------------------------------------------------------------------
/**
* @since 1.0.0
*/
var NullType = /** @class */ (function (_super) {
__extends(NullType, _super);
function NullType() {
var _this = _super.call(this, 'null', function (u) { return u === null; }, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'NullType';
return _this;
}
return NullType;
}(Type));
export { NullType };
/**
* @category primitives
* @since 1.0.0
*/
export var nullType = new NullType();
/**
* @since 1.0.0
*/
var UndefinedType = /** @class */ (function (_super) {
__extends(UndefinedType, _super);
function UndefinedType() {
var _this = _super.call(this, 'undefined', function (u) { return u === void 0; }, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'UndefinedType';
return _this;
}
return UndefinedType;
}(Type));
export { UndefinedType };
var undefinedType = new UndefinedType();
/**
* @since 1.2.0
*/
var VoidType = /** @class */ (function (_super) {
__extends(VoidType, _super);
function VoidType() {
var _this = _super.call(this, 'void', undefinedType.is, undefinedType.validate, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'VoidType';
return _this;
}
return VoidType;
}(Type));
export { VoidType };
/**
* @category primitives
* @since 1.2.0
*/
export var voidType = new VoidType();
/**
* @since 1.5.0
*/
var UnknownType = /** @class */ (function (_super) {
__extends(UnknownType, _super);
function UnknownType() {
var _this = _super.call(this, 'unknown', function (_) { return true; }, success, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'UnknownType';
return _this;
}
return UnknownType;
}(Type));
export { UnknownType };
/**
* @category primitives
* @since 1.5.0
*/
export var unknown = new UnknownType();
/**
* @since 1.0.0
*/
var StringType = /** @class */ (function (_super) {
__extends(StringType, _super);
function StringType() {
var _this = _super.call(this, 'string', function (u) { return typeof u === 'string'; }, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'StringType';
return _this;
}
return StringType;
}(Type));
export { StringType };
/**
* @category primitives
* @since 1.0.0
*/
export var string = new StringType();
/**
* @since 1.0.0
*/
var NumberType = /** @class */ (function (_super) {
__extends(NumberType, _super);
function NumberType() {
var _this = _super.call(this, 'number', function (u) { return typeof u === 'number'; }, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'NumberType';
return _this;
}
return NumberType;
}(Type));
export { NumberType };
/**
* @category primitives
* @since 1.0.0
*/
export var number = new NumberType();
/**
* @since 2.1.0
*/
var BigIntType = /** @class */ (function (_super) {
__extends(BigIntType, _super);
function BigIntType() {
var _this = _super.call(this, 'bigint',
// tslint:disable-next-line: valid-typeof
function (u) { return typeof u === 'bigint'; }, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'BigIntType';
return _this;
}
return BigIntType;
}(Type));
export { BigIntType };
/**
* @category primitives
* @since 2.1.0
*/
export var bigint = new BigIntType();
/**
* @since 1.0.0
*/
var BooleanType = /** @class */ (function (_super) {
__extends(BooleanType, _super);
function BooleanType() {
var _this = _super.call(this, 'boolean', function (u) { return typeof u === 'boolean'; }, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'BooleanType';
return _this;
}
return BooleanType;
}(Type));
export { BooleanType };
/**
* @category primitives
* @since 1.0.0
*/
export var boolean = new BooleanType();
/**
* @since 1.0.0
*/
var AnyArrayType = /** @class */ (function (_super) {
__extends(AnyArrayType, _super);
function AnyArrayType() {
var _this = _super.call(this, 'UnknownArray', Array.isArray, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'AnyArrayType';
return _this;
}
return AnyArrayType;
}(Type));
export { AnyArrayType };
/**
* @category primitives
* @since 1.7.1
*/
export var UnknownArray = new AnyArrayType();
/**
* @since 1.0.0
*/
var AnyDictionaryType = /** @class */ (function (_super) {
__extends(AnyDictionaryType, _super);
function AnyDictionaryType() {
var _this = _super.call(this, 'UnknownRecord', function (u) { return u !== null && typeof u === 'object' && !Array.isArray(u); }, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'AnyDictionaryType';
return _this;
}
return AnyDictionaryType;
}(Type));
export { AnyDictionaryType };
/**
* @category primitives
* @since 1.7.1
*/
export var UnknownRecord = new AnyDictionaryType();
export {
/**
* @category primitives
* @since 1.0.0
*/
nullType as null,
/**
* @category primitives
* @since 1.0.0
*/
undefinedType as undefined,
/**
* @category primitives
* @since 1.0.0
*/
voidType as void };
/**
* @since 1.0.0
*/
var LiteralType = /** @class */ (function (_super) {
__extends(LiteralType, _super);
function LiteralType(name, is, validate, encode, value) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.value = value;
/**
* @since 1.0.0
*/
_this._tag = 'LiteralType';
return _this;
}
return LiteralType;
}(Type));
export { LiteralType };
/**
* @category constructors
* @since 1.0.0
*/
export function literal(value, name) {
if (name === void 0) { name = JSON.stringify(value); }
var is = function (u) { return u === value; };
return new LiteralType(name, is, function (u, c) { return (is(u) ? success(value) : failure(u, c)); }, identity, value);
}
/**
* @since 1.0.0
*/
var KeyofType = /** @class */ (function (_super) {
__extends(KeyofType, _super);
function KeyofType(name, is, validate, encode, keys) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.keys = keys;
/**
* @since 1.0.0
*/
_this._tag = 'KeyofType';
return _this;
}
return KeyofType;
}(Type));
export { KeyofType };
/**
* @category constructors
* @since 1.0.0
*/
export function keyof(keys, name) {
if (name === void 0) { name = Object.keys(keys)
.map(function (k) { return JSON.stringify(k); })
.join(' | '); }
var is = function (u) { return string.is(u) && hasOwnProperty.call(keys, u); };
return new KeyofType(name, is, function (u, c) { return (is(u) ? success(u) : failure(u, c)); }, identity, keys);
}
// -------------------------------------------------------------------------------------
// combinators
// -------------------------------------------------------------------------------------
/**
* @since 1.0.0
*/
var RefinementType = /** @class */ (function (_super) {
__extends(RefinementType, _super);
function RefinementType(name, is, validate, encode, type, predicate) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.type = type;
_this.predicate = predicate;
/**
* @since 1.0.0
*/
_this._tag = 'RefinementType';
return _this;
}
return RefinementType;
}(Type));
export { RefinementType };
/**
* @category combinators
* @since 1.8.1
*/
export function brand(codec, predicate, name) {
return refinement(codec, predicate, name);
}
/**
* A branded codec representing an integer
*
* @category primitives
* @since 1.8.1
*/
export var Int = brand(number, function (n) { return Number.isInteger(n); }, 'Int');
/**
* @since 1.0.0
*/
var RecursiveType = /** @class */ (function (_super) {
__extends(RecursiveType, _super);
function RecursiveType(name, is, validate, encode, runDefinition) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.runDefinition = runDefinition;
/**
* @since 1.0.0
*/
_this._tag = 'RecursiveType';
return _this;
}
return RecursiveType;
}(Type));
export { RecursiveType };
Object.defineProperty(RecursiveType.prototype, 'type', {
get: function () {
return this.runDefinition();
},
enumerable: true,
configurable: true
});
/**
* @category combinators
* @since 1.0.0
*/
export function recursion(name, definition) {
var cache;
var runDefinition = function () {
if (!cache) {
cache = definition(Self);
cache.name = name;
}
return cache;
};
var Self = new RecursiveType(name, function (u) { return runDefinition().is(u); }, function (u, c) { return runDefinition().validate(u, c); }, function (a) { return runDefinition().encode(a); }, runDefinition);
return Self;
}
/**
* @since 1.0.0
*/
var ArrayType = /** @class */ (function (_super) {
__extends(ArrayType, _super);
function ArrayType(name, is, validate, encode, type) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.type = type;
/**
* @since 1.0.0
*/
_this._tag = 'ArrayType';
return _this;
}
return ArrayType;
}(Type));
export { ArrayType };
/**
* @category combinators
* @since 1.0.0
*/
export function array(item, name) {
if (name === void 0) { name = "Array<".concat(item.name, ">"); }
return new ArrayType(name, function (u) { return UnknownArray.is(u) && u.every(item.is); }, function (u, c) {
var e = UnknownArray.validate(u, c);
if (isLeft(e)) {
return e;
}
var us = e.right;
var len = us.length;
var as = us;
var errors = [];
for (var i = 0; i < len; i++) {
var ui = us[i];
var result = item.validate(ui, appendContext(c, String(i), item, ui));
if (isLeft(result)) {
pushAll(errors, result.left);
}
else {
var ai = result.right;
if (ai !== ui) {
if (as === us) {
as = us.slice();
}
as[i] = ai;
}
}
}
return errors.length > 0 ? failures(errors) : success(as);
}, item.encode === identity ? identity : function (a) { return a.map(item.encode); }, item);
}
/**
* @since 1.0.0
*/
var InterfaceType = /** @class */ (function (_super) {
__extends(InterfaceType, _super);
function InterfaceType(name, is, validate, encode, props) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.props = props;
/**
* @since 1.0.0
*/
_this._tag = 'InterfaceType';
return _this;
}
return InterfaceType;
}(Type));
export { InterfaceType };
/**
* @category combinators
* @since 1.0.0
*/
export function type(props, name) {
if (name === void 0) { name = getInterfaceTypeName(props); }
var keys = Object.keys(props);
var types = keys.map(function (key) { return props[key]; });
var len = keys.length;
return new InterfaceType(name, function (u) {
if (UnknownRecord.is(u)) {
for (var i = 0; i < len; i++) {
var k = keys[i];
var uk = u[k];
if ((uk === undefined && !hasOwnProperty.call(u, k)) || !types[i].is(uk)) {
return false;
}
}
return true;
}
return false;
}, function (u, c) {
var e = UnknownRecord.validate(u, c);
if (isLeft(e)) {
return e;
}
var o = e.right;
var a = o;
var errors = [];
for (var i = 0; i < len; i++) {
var k = keys[i];
var ak = a[k];
var type_1 = types[i];
var result = type_1.validate(ak, appendContext(c, k, type_1, ak));
if (isLeft(result)) {
pushAll(errors, result.left);
}
else {
var vak = result.right;
if (vak !== ak || (vak === undefined && !hasOwnProperty.call(a, k))) {
/* istanbul ignore next */
if (a === o) {
a = __assign({}, o);
}
a[k] = vak;
}
}
}
return errors.length > 0 ? failures(errors) : success(a);
}, useIdentity(types)
? identity
: function (a) {
var s = __assign({}, a);
for (var i = 0; i < len; i++) {
var k = keys[i];
var encode = types[i].encode;
if (encode !== identity) {
s[k] = encode(a[k]);
}
}
return s;
}, props);
}
/**
* @since 1.0.0
*/
var PartialType = /** @class */ (function (_super) {
__extends(PartialType, _super);
function PartialType(name, is, validate, encode, props) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.props = props;
/**
* @since 1.0.0
*/
_this._tag = 'PartialType';
return _this;
}
return PartialType;
}(Type));
export { PartialType };
/**
* @category combinators
* @since 1.0.0
*/
export function partial(props, name) {
if (name === void 0) { name = getPartialTypeName(getInterfaceTypeName(props)); }
var keys = Object.keys(props);
var types = keys.map(function (key) { return props[key]; });
var len = keys.length;
return new PartialType(name, function (u) {
if (UnknownRecord.is(u)) {
for (var i = 0; i < len; i++) {
var k = keys[i];
var uk = u[k];
if (uk !== undefined && !props[k].is(uk)) {
return false;
}
}
return true;
}
return false;
}, function (u, c) {
var e = UnknownRecord.validate(u, c);
if (isLeft(e)) {
return e;
}
var o = e.right;
var a = o;
var errors = [];
for (var i = 0; i < len; i++) {
var k = keys[i];
var ak = a[k];
var type_2 = props[k];
var result = type_2.validate(ak, appendContext(c, k, type_2, ak));
if (isLeft(result)) {
if (ak !== undefined) {
pushAll(errors, result.left);
}
}
else {
var vak = result.right;
if (vak !== ak) {
/* istanbul ignore next */
if (a === o) {
a = __assign({}, o);
}
a[k] = vak;
}
}
}
return errors.length > 0 ? failures(errors) : success(a);
}, useIdentity(types)
? identity
: function (a) {
var s = __assign({}, a);
for (var i = 0; i < len; i++) {
var k = keys[i];
var ak = a[k];
if (ak !== undefined) {
s[k] = types[i].encode(ak);
}
}
return s;
}, props);
}
/**
* @since 1.0.0
*/
var DictionaryType = /** @class */ (function (_super) {
__extends(DictionaryType, _super);
function DictionaryType(name, is, validate, encode, domain, codomain) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.domain = domain;
_this.codomain = codomain;
/**
* @since 1.0.0
*/
_this._tag = 'DictionaryType';
return _this;
}
return DictionaryType;
}(Type));
export { DictionaryType };
/**
* @category combinators
* @since 1.7.1
*/
export function record(domain, codomain, name) {
var keys = getDomainKeys(domain);
return keys
? enumerableRecord(Object.keys(keys), domain, codomain, name)
: nonEnumerableRecord(domain, codomain, name);
}
/**
* @since 1.0.0
*/
var UnionType = /** @class */ (function (_super) {
__extends(UnionType, _super);
function UnionType(name, is, validate, encode, types) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.types = types;
/**
* @since 1.0.0
*/
_this._tag = 'UnionType';
return _this;
}
return UnionType;
}(Type));
export { UnionType };
/**
* @category combinators
* @since 1.0.0
*/
export function union(codecs, name) {
if (name === void 0) { name = getUnionName(codecs); }
var index = getIndex(codecs);
if (index !== undefined && codecs.length > 0) {
var tag_1 = index[0], groups_1 = index[1];
var len_1 = groups_1.length;
var find_1 = function (value) {
for (var i = 0; i < len_1; i++) {
if (groups_1[i].indexOf(value) !== -1) {
return i;
}
}
return undefined;
};
// tslint:disable-next-line: deprecation
return new TaggedUnionType(name, function (u) {
if (UnknownRecord.is(u)) {
var i = find_1(u[tag_1]);
return i !== undefined ? codecs[i].is(u) : false;
}
return false;
}, function (u, c) {
var e = UnknownRecord.validate(u, c);
if (isLeft(e)) {
return e;
}
var r = e.right;
var i = find_1(r[tag_1]);
if (i === undefined) {
return failure(u, c);
}
var codec = codecs[i];
return codec.validate(r, appendContext(c, String(i), codec, r));
}, useIdentity(codecs)
? identity
: function (a) {
var i = find_1(a[tag_1]);
if (i === undefined) {
// https://github.com/gcanti/io-ts/pull/305
throw new Error("no codec found to encode value in union codec ".concat(name));
}
else {
return codecs[i].encode(a);
}
}, codecs, tag_1);
}
else {
return new UnionType(name, function (u) { return codecs.some(function (type) { return type.is(u); }); }, function (u, c) {
var errors = [];
for (var i = 0; i < codecs.length; i++) {
var codec = codecs[i];
var result = codec.validate(u, appendContext(c, String(i), codec, u));
if (isLeft(result)) {
pushAll(errors, result.left);
}
else {
return success(result.right);
}
}
return failures(errors);
}, useIdentity(codecs)
? identity
: function (a) {
for (var _i = 0, codecs_1 = codecs; _i < codecs_1.length; _i++) {
var codec = codecs_1[_i];
if (codec.is(a)) {
return codec.encode(a);
}
}
// https://github.com/gcanti/io-ts/pull/305
throw new Error("no codec found to encode value in union type ".concat(name));
}, codecs);
}
}
/**
* @since 1.0.0
*/
var IntersectionType = /** @class */ (function (_super) {
__extends(IntersectionType, _super);
function IntersectionType(name, is, validate, encode, types) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.types = types;
/**
* @since 1.0.0
*/
_this._tag = 'IntersectionType';
return _this;
}
return IntersectionType;
}(Type));
export { IntersectionType };
export function intersection(codecs, name) {
if (name === void 0) { name = "(".concat(codecs.map(function (type) { return type.name; }).join(' & '), ")"); }
var len = codecs.length;
return new IntersectionType(name, function (u) { return codecs.every(function (type) { return type.is(u); }); }, codecs.length === 0
? success
: function (u, c) {
var us = [];
var errors = [];
for (var i = 0; i < len; i++) {
var codec = codecs[i];
var result = codec.validate(u, appendContext(c, String(i), codec, u));
if (isLeft(result)) {
pushAll(errors, result.left);
}
else {
us.push(result.right);
}
}
return errors.length > 0 ? failures(errors) : success(mergeAll(u, us));
}, codecs.length === 0
? identity
: function (a) {
return mergeAll(a, codecs.map(function (codec) { return codec.encode(a); }));
}, codecs);
}
/**
* @since 1.0.0
*/
var TupleType = /** @class */ (function (_super) {
__extends(TupleType, _super);
function TupleType(name, is, validate, encode, types) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.types = types;
/**
* @since 1.0.0
*/
_this._tag = 'TupleType';
return _this;
}
return TupleType;
}(Type));
export { TupleType };
export function tuple(codecs, name) {
if (name === void 0) { name = "[".concat(codecs.map(function (type) { return type.name; }).join(', '), "]"); }
var len = codecs.length;
return new TupleType(name, function (u) { return UnknownArray.is(u) && u.length === len && codecs.every(function (type, i) { return type.is(u[i]); }); }, function (u, c) {
var e = UnknownArray.validate(u, c);
if (isLeft(e)) {
return e;
}
var us = e.right;
var as = us.length > len ? us.slice(0, len) : us; // strip additional components
var errors = [];
for (var i = 0; i < len; i++) {
var a = us[i];
var type_3 = codecs[i];
var result = type_3.validate(a, appendContext(c, String(i), type_3, a));
if (isLeft(result)) {
pushAll(errors, result.left);
}
else {
var va = result.right;
if (va !== a) {
/* istanbul ignore next */
if (as === us) {
as = us.slice();
}
as[i] = va;
}
}
}
return errors.length > 0 ? failures(errors) : success(as);
}, useIdentity(codecs) ? identity : function (a) { return codecs.map(function (type, i) { return type.encode(a[i]); }); }, codecs);
}
/**
* @since 1.0.0
*/
var ReadonlyType = /** @class */ (function (_super) {
__extends(ReadonlyType, _super);
function ReadonlyType(name, is, validate, encode, type) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.type = type;
/**
* @since 1.0.0
*/
_this._tag = 'ReadonlyType';
return _this;
}
return ReadonlyType;
}(Type));
export { ReadonlyType };
/**
* @category combinators
* @since 1.0.0
*/
export function readonly(codec, name) {
if (name === void 0) { name = "Readonly<".concat(codec.name, ">"); }
return new ReadonlyType(name, codec.is, codec.validate, codec.encode, codec);
}
/**
* @since 1.0.0
*/
var ReadonlyArrayType = /** @class */ (function (_super) {
__extends(ReadonlyArrayType, _super);
function ReadonlyArrayType(name, is, validate, encode, type) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.type = type;
/**
* @since 1.0.0
*/
_this._tag = 'ReadonlyArrayType';
return _this;
}
return ReadonlyArrayType;
}(Type));
export { ReadonlyArrayType };
/**
* @category combinators
* @since 1.0.0
*/
export function readonlyArray(item, name) {
if (name === void 0) { name = "ReadonlyArray<".concat(item.name, ">"); }
var codec = array(item);
return new ReadonlyArrayType(name, codec.is, codec.validate, codec.encode, item);
}
/**
* Strips additional properties, equivalent to `exact(type(props))`.
*
* @category combinators
* @since 1.0.0
*/
export var strict = function (props, name) { return exact(type(props), name); };
/**
* @since 1.1.0
*/
var ExactType = /** @class */ (function (_super) {
__extends(ExactType, _super);
function ExactType(name, is, validate, encode, type) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.type = type;
/**
* @since 1.0.0
*/
_this._tag = 'ExactType';
return _this;
}
return ExactType;
}(Type));
export { ExactType };
/**
* Strips additional properties.
*
* @category combinators
* @since 1.1.0
*/
export function exact(codec, name) {
if (name === void 0) { name = getExactTypeName(codec); }
var props = getProps(codec);
return new ExactType(name, codec.is, function (u, c) {
var e = UnknownRecord.validate(u, c);
if (isLeft(e)) {
return e;
}
var ce = codec.validate(u, c);
if (isLeft(ce)) {
return ce;
}
return right(stripKeys(ce.right, props));
}, function (a) { return codec.encode(stripKeys(a, props)); }, codec);
}
/**
* @since 1.0.0
*/
var FunctionType = /** @class */ (function (_super) {
__extends(FunctionType, _super);
function FunctionType() {
var _this = _super.call(this, 'Function',
// tslint:disable-next-line:strict-type-predicates
function (u) { return typeof u === 'function'; }, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'FunctionType';
return _this;
}
return FunctionType;
}(Type));
export { FunctionType };
/**
* @category primitives
* @since 1.0.0
*/
export var Function = new FunctionType();
/**
* @since 1.0.0
*/
var NeverType = /** @class */ (function (_super) {
__extends(NeverType, _super);
function NeverType() {
var _this = _super.call(this, 'never', function (_) { return false; }, function (u, c) { return failure(u, c); },
/* istanbul ignore next */
function () {
throw new Error('cannot encode never');
}) || this;
/**
* @since 1.0.0
*/
_this._tag = 'NeverType';
return _this;
}
return NeverType;
}(Type));
export { NeverType };
/**
* @category primitives
* @since 1.0.0
*/
export var never = new NeverType();
/**
* @since 1.0.0
*/
var AnyType = /** @class */ (function (_super) {
__extends(AnyType, _super);
function AnyType() {
var _this = _super.call(this, 'any', function (_) { return true; }, success, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'AnyType';
return _this;
}
return AnyType;
}(Type));
export { AnyType };
/**
* @category primitives
* @since 1.0.0
*/
export var any = new AnyType();
export function refinement(codec, predicate, name) {
if (name === void 0) { name = "(".concat(codec.name, " | ").concat(getFunctionName(predicate), ")"); }
return new RefinementType(name, function (u) { return codec.is(u) && predicate(u); }, function (i, c) {
var e = codec.validate(i, c);
if (isLeft(e)) {
return e;
}
var a = e.right;
return predicate(a) ? success(a) : failure(a, c);
}, codec.encode, codec, predicate);
}
/**
* @category primitives
* @since 1.0.0
*/
export var Integer = refinement(number, Number.isInteger, 'Integer');
// -------------------------------------------------------------------------------------
// deprecated
// -------------------------------------------------------------------------------------
/**
* @since 1.3.0
* @deprecated
*/
var TaggedUnionType = /** @class */ (function (_super) {
__extends(TaggedUnionType, _super);
function TaggedUnionType(name,
// tslint:disable-next-line: deprecation
is,
// tslint:disable-next-line: deprecation
validate,
// tslint:disable-next-line: deprecation
encode, codecs, tag) {
var _this = _super.call(this, name, is, validate, encode, codecs) /* istanbul ignore next */ // <= workaround for https://github.com/Microsoft/TypeScript/issues/13455
|| this;
_this.tag = tag;
return _this;
}
return TaggedUnionType;
}(UnionType));
export { TaggedUnionType };
/**
* Use `union` instead.
*
* @category combinators
* @since 1.3.0
* @deprecated
*/
export var taggedUnion = function (tag, codecs, name
// tslint:disable-next-line: deprecation
) {
if (name === void 0) { name = getUnionName(codecs); }
var U = union(codecs, name);
// tslint:disable-next-line: deprecation
if (U instanceof TaggedUnionType) {
return U;
}
else {
console.warn("[io-ts] Cannot build a tagged union for ".concat(name, ", returning a de-optimized union"));
// tslint:disable-next-line: deprecation
return new TaggedUnionType(name, U.is, U.validate, U.encode, codecs, tag);
}
};
export {
/**
* Use `UnknownArray` instead.
*
* @category primitives
* @deprecated
* @since 1.0.0
*/
UnknownArray as Array };
export {
/**
* Use `type` instead.
*
* @category combinators
* @deprecated
* @since 1.0.0
*/
type as interface };
/**
* @since 1.0.0
* @deprecated
*/
export var getValidationError /* istanbul ignore next */ = function (value, context) { return ({
value: value,
context: context
}); };
/**
* @since 1.0.0
* @deprecated
*/
export var getDefaultContext /* istanbul ignore next */ = function (decoder) { return [
{ key: '', type: decoder }
]; };
/**
* Use `UnknownRecord` instead.
*
* @category primitives
* @since 1.0.0
* @deprecated
*/
export var Dictionary = UnknownRecord;
/**
* @since 1.0.0
* @deprecated
*/
var ObjectType = /** @class */ (function (_super) {
__extends(ObjectType, _super);
function ObjectType() {
var _this = _super.call(this, 'object', function (u) { return u !== null && typeof u === 'object'; }, function (u, c) { return (_this.is(u) ? success(u) : failure(u, c)); }, identity) || this;
/**
* @since 1.0.0
*/
_this._tag = 'ObjectType';
return _this;
}
return ObjectType;
}(Type));
export { ObjectType };
/**
* Use `UnknownRecord` instead.
*
* @category primitives
* @since 1.0.0
* @deprecated
*/
// tslint:disable-next-line: deprecation
export var object = new ObjectType();
/**
* Use `record` instead.
*
* @category combinators
* @since 1.0.0
* @deprecated
*/
export var dictionary = record;
/**
* @since 1.0.0
* @deprecated
*/
var StrictType = /** @class */ (function (_super) {
__extends(StrictType, _super);
function StrictType(name,
// tslint:disable-next-line: deprecation
is,
// tslint:disable-next-line: deprecation
validate,
// tslint:disable-next-line: deprecation
encode, props) {
var _this = _super.call(this, name, is, validate, encode) || this;
_this.props = props;
/**
* @since 1.0.0
*/
_this._tag = 'StrictType';
return _this;
}
return StrictType;
}(Type));
export { StrictType };
/**
* Drops the codec "kind".
*
* @category combinators
* @since 1.1.0
* @deprecated
*/
export function clean(codec) {
return codec;
}
export function alias(codec) {
return function () { return codec; };
}