@backland/schema
Version:
TypeScript schema declaration and validation library with static type inference
207 lines (206 loc) • 8.01 kB
JavaScript
function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); enumerableOnly && (symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; })), keys.push.apply(keys, symbols); } return keys; }
function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = null != arguments[i] ? arguments[i] : {}; i % 2 ? ownKeys(Object(source), !0).forEach(function (key) { _defineProperty(target, key, source[key]); }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)) : ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } return target; }
function _defineProperty(obj, key, value) { key = _toPropertyKey(key); if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }
function _toPropertyKey(arg) { var key = _toPrimitive(arg, "string"); return typeof key === "symbol" ? key : String(key); }
function _toPrimitive(input, hint) { if (typeof input !== "object" || input === null) return input; var prim = input[Symbol.toPrimitive]; if (prim !== undefined) { var res = prim.call(input, hint || "default"); if (typeof res !== "object") return res; throw new TypeError("@@toPrimitive must return a primitive value."); } return (hint === "string" ? String : Number)(input); }
function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }
function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }
import { hashString } from '@backland/utils';
import { CircularDeps } from '../CircularDeps';
import { GraphType } from '../GraphType/GraphType';
import { ObjectType } from '../ObjectType';
import { isFieldTypeName } from '../fields/fieldTypes';
import { parseTSFyValue } from './parseTSFyValue';
export var tsfy_defaults = {
iterationLimit: 5000
};
export function tsfy(input, config) {
var context = createTSFYContext(config || {});
var {
groupInTypeThreshold,
iterationLimit,
many
} = context.config;
var header = new Set();
var footer = new Set();
var entries = (() => {
if (many) {
if (Array.isArray(input)) {
return input;
} else {
throw new Error("tsfy: expected input value to be an array when options.many is true.");
}
}
return [input];
})();
function getParts() {
return _getParts.apply(this, arguments);
}
function _getParts() {
_getParts = _asyncToGenerator(function* () {
var body = yield _asyncToGenerator(function* () {
//
function runPart(_x2) {
return _runPart.apply(this, arguments);
}
function _runPart() {
_runPart = _asyncToGenerator(function* (part) {
var ref = yield parseTSFyValue(part, context);
return resolvePart(ref, undefined, 0);
});
return _runPart.apply(this, arguments);
}
var parts = yield awaitAll(entries.map(runPart));
return parts.join('\n');
})();
Object.values(context.header).forEach(el => header.add(el));
return {
header,
body,
footer
};
});
return _getParts.apply(this, arguments);
}
function toString(_x) {
return _toString.apply(this, arguments);
}
function _toString() {
_toString = _asyncToGenerator(function* (options) {
var {
name,
prettier,
wrapper = ['', '']
} = options || {};
var {
footer,
header,
body
} = yield getParts();
if (name) {
return [wrapper[0], ...header.values(), "export type ".concat(name, " = ").concat(body, ";"), ...footer.values(), wrapper[1]].filter(Boolean).join('\n');
}
var res = [wrapper[0], ...header.values(), ...footer.values(), wrapper[1]].filter(Boolean).join('\n');
if (prettier) {
return CircularDeps.prettier.format(res, {
parser: 'typescript'
});
}
return res;
});
return _toString.apply(this, arguments);
}
function resolvePart(ref, hash, count) {
if (count > iterationLimit) {
throw new Error("tsfy: Maximum number of iterations (".concat(iterationLimit, ") exceeded."));
} else {
count += 1;
}
var contextRef = hash ? context.refs[hash] : undefined;
if (contextRef) {
if (contextRef.result !== undefined) return contextRef.result;
}
if (Array.isArray(ref)) {
var res = ref.map(rr => resolvePart(rr, undefined, count));
var body = res.join('');
if (contextRef) {
contextRef.result = body;
}
return body;
}
var value = (() => {
if (typeof ref === 'string') return ref;
if (ref.result !== undefined) return ref.result;
/**
* Complex ref
*/
var parts = ref.parts;
var res = resolvePart(parts, ref.hash, count);
ref.result = res;
var shouldGroupInOneType = ref.count >= groupInTypeThreshold;
if (shouldGroupInOneType || ref.identifier) {
var hashed = "".concat(hashString(ref.result)).slice(0, 6);
var named = ref.identifier || "T".concat(hashed);
var prefix = ref.identifier ? "export type ".concat(ref.identifier, " = ") : "type ".concat(named, " = ");
if (ref.identifier) {
header.add("".concat(prefix, " ").concat(res, ";\n"));
} else {
footer.add("".concat(prefix, " ").concat(res, ";"));
}
return named;
}
return res;
})();
if (hash) {
context.refs[hash].result = value;
}
return value;
}
return {
toString,
getParts
};
}
export function getTSFyIdentifier(value) {
if (!value) return undefined;
if (typeof value !== 'object') return undefined;
if (value.__isEntity === true) {
return "T".concat(value.name, "Entity");
}
if (GraphType.is(value) && value.optionalId) {
return "T".concat(value.optionalId, "Type");
}
if (ObjectType.is(value)) {
return value.id ? "T".concat(value.id, "Object") : undefined;
}
if (isFieldTypeName(value.type) && typeof value.name === 'string') {
return "T".concat(value.name, "Field");
}
return undefined;
}
export function createTSfyRef(hash, identifier) {
var ref = {
identifier,
hash,
result: undefined,
count: 1,
parts: []
};
return ref;
}
export function createTSFYContext(config) {
var {
iterationLimit = tsfy_defaults.iterationLimit,
many = false,
groupInTypeThreshold = 2
} = config || {};
var context = _objectSpread({
refs: {},
header: {},
config: _objectSpread({
context: undefined,
groupInTypeThreshold,
iterationLimit,
many
}, config)
}, config.context);
context.config.context = context;
return context;
}
function awaitAll(_x3) {
return _awaitAll.apply(this, arguments);
} // export type _ResolveParts = (options: {
// ref: TSFYPart;
// hash: string | undefined;
// count: number;
// }) => Promise<string>;
function _awaitAll() {
_awaitAll = _asyncToGenerator(function* (promises) {
for (var key in promises) {
promises[key] = yield promises[key];
}
return promises;
});
return _awaitAll.apply(this, arguments);
}
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