mobx-keystone/dist/mobx-keystone.esm.mjs

A MobX powered state management solution based on data trees with first class support for TypeScript, snapshots, patches and much more

var __defProp = Object.defineProperty;
var __defNormalProp = (obj, key, value) => key in obj ? __defProp(obj, key, { enumerable: true, configurable: true, writable: true, value }) : obj[key] = value;
var __publicField = (obj, key, value) => __defNormalProp(obj, typeof key !== "symbol" ? key + "" : key, value);
var _a, _b, _c, _d, _e, _f, _g, _h, _i, _j;
import * as mobx from "mobx";
import { isObservableMap, isObservableSet, isObservableArray, isObservableObject, createAtom, runInAction, action, computed, isAction, set, reaction, isObservable, toJS, remove, observable, intercept, observe, when, untracked, transaction as transaction$1, values, get, has, keys, entries } from "mobx";
const dataModelActionRegistry = /* @__PURE__ */ new Map();
function getDataModelAction(fullActionName) {
  return dataModelActionRegistry.get(fullActionName);
}
function setDataModelAction(fullActionName, modelClass2, fnName) {
  dataModelActionRegistry.set(fullActionName, {
    modelClass: modelClass2,
    fnName
  });
}
var BuiltInAction = /* @__PURE__ */ ((BuiltInAction2) => {
  BuiltInAction2["ApplyPatches"] = "$$applyPatches";
  BuiltInAction2["ApplySnapshot"] = "$$applySnapshot";
  BuiltInAction2["Detach"] = "$$detach";
  BuiltInAction2["ApplySet"] = "$$applySet";
  BuiltInAction2["ApplyDelete"] = "$$applyDelete";
  BuiltInAction2["ApplyMethodCall"] = "$$applyMethodCall";
  return BuiltInAction2;
})(BuiltInAction || {});
const builtInActionValues = new Set(Object.values(BuiltInAction));
function isBuiltInAction(actionName) {
  return builtInActionValues.has(actionName);
}
var ActionContextActionType = /* @__PURE__ */ ((ActionContextActionType2) => {
  ActionContextActionType2["Sync"] = "sync";
  ActionContextActionType2["Async"] = "async";
  return ActionContextActionType2;
})(ActionContextActionType || {});
var ActionContextAsyncStepType = /* @__PURE__ */ ((ActionContextAsyncStepType2) => {
  ActionContextAsyncStepType2["Spawn"] = "spawn";
  ActionContextAsyncStepType2["Return"] = "return";
  ActionContextAsyncStepType2["Resume"] = "resume";
  ActionContextAsyncStepType2["ResumeError"] = "resumeError";
  ActionContextAsyncStepType2["Throw"] = "throw";
  return ActionContextAsyncStepType2;
})(ActionContextAsyncStepType || {});
let currentActionContext;
function getCurrentActionContext() {
  return currentActionContext;
}
function setCurrentActionContext(ctx) {
  currentActionContext = ctx;
}
const modelActionSymbol = Symbol("modelAction");
function isModelAction(fn) {
  return typeof fn === "function" && modelActionSymbol in fn;
}
const modelTypeKey = "$modelType";
const modelIdKey = "$modelId";
function isReservedModelKey(key) {
  return key === modelTypeKey;
}
class MobxKeystoneError extends Error {
  constructor(msg) {
    super(msg);
    Object.setPrototypeOf(this, MobxKeystoneError.prototype);
  }
}
function failure(msg) {
  return new MobxKeystoneError(msg);
}
const writableHiddenPropDescriptor = {
  enumerable: false,
  writable: true,
  configurable: false,
  value: void 0
};
function addHiddenProp(object, propName, value, writable = true) {
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    Object.defineProperty(object, propName, writableHiddenPropDescriptor);
    object[propName] = value;
  } else {
    Object.defineProperty(object, propName, {
      enumerable: false,
      writable,
      configurable: true,
      value
    });
  }
}
function makePropReadonly(object, propName, enumerable) {
  const propDesc = Object.getOwnPropertyDescriptor(object, propName);
  if (propDesc) {
    propDesc.enumerable = enumerable;
    if (propDesc.get) {
      delete propDesc.set;
    } else {
      propDesc.writable = false;
    }
    Object.defineProperty(object, propName, propDesc);
  }
}
function isPlainObject(value) {
  if (!isObject(value)) {
    return false;
  }
  const proto = Object.getPrototypeOf(value);
  return proto === Object.prototype || proto === null;
}
function isObject(value) {
  return value !== null && typeof value === "object";
}
function isPrimitive(value) {
  switch (typeof value) {
    case "number":
    case "string":
    case "boolean":
    case "undefined":
    case "bigint":
      return true;
    default:
      return value === null;
  }
}
function isJSONPrimitive(value) {
  switch (typeof value) {
    case "number":
      return Number.isFinite(value);
    case "string":
    case "boolean":
      return true;
    default:
      return value === null;
  }
}
function deleteFromArray(array, value) {
  const index = array.indexOf(value);
  if (index >= 0) {
    array.splice(index, 1);
    return true;
  }
  return false;
}
function isMap(val) {
  return val instanceof Map || isObservableMap(val);
}
function isSet(val) {
  return val instanceof Set || isObservableSet(val);
}
function isArray(val) {
  return Array.isArray(val) || isObservableArray(val);
}
const inDevMode = process.env.NODE_ENV !== "production";
function assertIsObject(value, argName) {
  if (!isObject(value)) {
    throw failure(`${argName} must be an object`);
  }
}
function assertIsPlainObject(value, argName) {
  if (!isPlainObject(value)) {
    throw failure(`${argName} must be a plain object`);
  }
}
function assertIsObservableObject(value, argName) {
  if (!isObservableObject(value)) {
    throw failure(`${argName} must be an observable object`);
  }
}
function assertIsObservableArray(value, argName) {
  if (!isObservableArray(value)) {
    throw failure(`${argName} must be an observable array`);
  }
}
function assertIsMap(value, argName) {
  if (!isMap(value)) {
    throw failure(`${argName} must be a map`);
  }
}
function assertIsSet(value, argName) {
  if (!isSet(value)) {
    throw failure(`${argName} must be a set`);
  }
}
function assertIsFunction(value, argName) {
  if (typeof value !== "function") {
    throw failure(`${argName} must be a function`);
  }
}
function assertIsPrimitive(value, argName) {
  if (!isPrimitive(value)) {
    throw failure(`${argName} must be a primitive`);
  }
}
function assertIsString(value, argName) {
  if (typeof value !== "string") {
    throw failure(`${argName} must be a string`);
  }
}
const runAfterNewSymbol = Symbol("runAfterNew");
const runBeforeOnInitSymbol = Symbol("runBeforeOnInit");
function addLateInitializationFunction(target, symbol, fn) {
  let array = target[symbol];
  if (!(array && Object.prototype.hasOwnProperty.call(target, symbol))) {
    array = array ? array.slice() : [];
    addHiddenProp(target, symbol, array);
  }
  array.push(fn);
}
function runLateInitializationFunctions(target, symbol) {
  const fns = target[symbol];
  if (fns) {
    for (const fn of fns) {
      fn(target);
    }
  }
}
const warningsAlreadyDisplayed = /* @__PURE__ */ new Set();
function logWarning(type, msg, uniqueKey) {
  if (uniqueKey) {
    if (warningsAlreadyDisplayed.has(uniqueKey)) {
      return;
    }
    warningsAlreadyDisplayed.add(uniqueKey);
  }
  msg = "[mobx-keystone] " + msg;
  switch (type) {
    case "warn":
      console.warn(msg);
      break;
    case "error":
      console.error(msg);
      break;
    default:
      throw failure(`unknown log type - ${type}`);
  }
}
function lazy(getter) {
  let memoizedValue;
  let memoized = false;
  return (...args) => {
    if (!memoized) {
      memoizedValue = getter(...args);
      memoized = true;
    }
    return memoizedValue;
  };
}
const identityFn = (x) => x;
const mobx6 = {
  makeObservable: mobx[
    // just to ensure import * is kept properly
    String.fromCharCode("l".charCodeAt(0) + 1) + "akeObservable"
  ]
};
function propNameToSetterName(propName) {
  return `set${propName[0].toUpperCase()}${propName.slice(1)}`;
}
function getMobxVersion() {
  if (mobx6.makeObservable) {
    return 6;
  } else {
    return 5;
  }
}
const namespace$2 = "mobx-keystone";
const propsTypeSymbol = Symbol("propsType");
const fromSnapshotOverrideTypeSymbol = Symbol("fromSnapshotOverrideType");
const toSnapshotOverrideTypeSymbol = Symbol("toSnapshotOverrideType");
const modelInitializedSymbol = Symbol("modelInitialized");
function modelClass(type) {
  return type;
}
const modelInfoByName = {};
const modelInfoByClass = /* @__PURE__ */ new WeakMap();
function getModelInfoForName(name) {
  return modelInfoByName[name];
}
function getOrCreate(map, key, create) {
  let value = map.get(key);
  if (value === void 0) {
    value = create();
    map.set(key, value);
  }
  return value;
}
const objectParents = /* @__PURE__ */ new WeakMap();
const objectParentsAtoms = /* @__PURE__ */ new WeakMap();
function parentPathEquals(parentPath1, parentPath2) {
  if (!(parentPath1 || parentPath2)) {
    return true;
  }
  if (!(parentPath1 && parentPath2)) {
    return false;
  }
  return parentPath1.parent === parentPath2.parent && parentPath1.path === parentPath2.path;
}
function createParentPathAtom() {
  return createAtom("parentAtom");
}
function reportParentPathObserved(node) {
  getOrCreate(objectParentsAtoms, node, createParentPathAtom).reportObserved();
}
function reportParentPathChanged(node) {
  var _a2;
  (_a2 = objectParentsAtoms.get(node)) == null ? void 0 : _a2.reportChanged();
}
const dataObjectParent = /* @__PURE__ */ new WeakMap();
function dataToModelNode(node) {
  const modelNode = dataObjectParent.get(node);
  return modelNode != null ? modelNode : node;
}
function modelToDataNode(node) {
  return isModel(node) ? node.$ : node;
}
const tweakedObjects = /* @__PURE__ */ new WeakMap();
function isTweakedObject(value, canBeDataObject) {
  if (!canBeDataObject && dataObjectParent.has(value)) {
    return false;
  }
  return tweakedObjects.has(value);
}
function isTreeNode(value) {
  return !isPrimitive(value) && isTweakedObject(value, false);
}
function assertTweakedObject(treeNode, argName, canBeDataObject = false) {
  if (!canBeDataObject && dataObjectParent.has(treeNode)) {
    throw failure(`${argName} must be the model object instance instead of the '$' sub-object`);
  }
  if (isPrimitive(treeNode) || !isTweakedObject(treeNode, true)) {
    throw failure(
      `${argName} must be a tree node (usually a model or a shallow / deep child part of a model 'data' object)`
    );
  }
}
function assertIsTreeNode(value, argName = "argument") {
  assertTweakedObject(value, argName, false);
}
let runningWithoutSnapshotOrPatches = false;
function runWithoutSnapshotOrPatches(fn) {
  const old = runningWithoutSnapshotOrPatches;
  runningWithoutSnapshotOrPatches = true;
  try {
    runInAction(() => {
      fn();
    });
  } finally {
    runningWithoutSnapshotOrPatches = old;
  }
}
const modelMetadataSymbol = Symbol("modelMetadata");
const modelUnwrappedClassSymbol = Symbol("modelUnwrappedClass");
const runAfterModelDecoratorSymbol = Symbol("runAfterModelDecorator");
const modelPropertiesSymbol = Symbol("modelProperties");
function getInternalModelClassPropsInfo(modelClass2) {
  return modelClass2[modelPropertiesSymbol];
}
function setInternalModelClassPropsInfo(modelClass2, props) {
  modelClass2[modelPropertiesSymbol] = props;
}
const noDefaultValue = Symbol("noDefaultValue");
const idProp = {
  _setter: false,
  _isId: true,
  withSetter(mode) {
    const obj = Object.create(this);
    obj._setter = mode != null ? mode : true;
    return obj;
  },
  typedAs() {
    return idProp;
  }
};
const baseProp = {
  ...{},
  _defaultFn: noDefaultValue,
  _defaultValue: noDefaultValue,
  _typeChecker: void 0,
  _setter: false,
  _isId: false,
  _transform: void 0,
  _fromSnapshotProcessor: void 0,
  _toSnapshotProcessor: void 0,
  withSetter(mode) {
    const obj = Object.create(this);
    obj._setter = mode != null ? mode : true;
    return obj;
  },
  withTransform(transform) {
    const obj = Object.create(this);
    obj._transform = toFullTransform(transform);
    return obj;
  },
  withSnapshotProcessor({ fromSnapshot: fromSnapshot2, toSnapshot }) {
    let newFromSnapshot;
    if (this._fromSnapshotProcessor && fromSnapshot2) {
      const oldFn = this._fromSnapshotProcessor;
      const newFn = fromSnapshot2;
      newFromSnapshot = (sn) => oldFn(newFn(sn));
    } else if (fromSnapshot2) {
      newFromSnapshot = fromSnapshot2;
    } else {
      newFromSnapshot = this._fromSnapshotProcessor;
    }
    let newToSnapshot;
    if (this._toSnapshotProcessor && toSnapshot) {
      const oldFn = this._toSnapshotProcessor;
      const newFn = toSnapshot;
      newToSnapshot = (sn) => newFn(oldFn(sn));
    } else if (toSnapshot) {
      newToSnapshot = toSnapshot;
    } else {
      newToSnapshot = this._toSnapshotProcessor;
    }
    const obj = Object.create(this);
    obj._fromSnapshotProcessor = newFromSnapshot;
    obj._toSnapshotProcessor = newToSnapshot;
    return obj;
  }
};
function prop(def) {
  const hasDefaultValue = arguments.length > 0;
  if (!hasDefaultValue) {
    return baseProp;
  }
  let p = propCache.get(def);
  if (!p) {
    p = Object.create(baseProp);
    if (typeof def === "function") {
      p._defaultFn = def;
    } else {
      p._defaultValue = def;
    }
    propCache.set(def, p);
  }
  return p;
}
const propCache = /* @__PURE__ */ new Map();
let cacheTransformResult = false;
const cacheTransformedValueFn = () => {
  cacheTransformResult = true;
};
function toFullTransform(transformObject) {
  const cache = /* @__PURE__ */ new WeakMap();
  const transform = (params) => params.originalValue == null ? params.originalValue : transformObject.transform(params);
  const untransform = (params) => params.transformedValue == null ? params.transformedValue : transformObject.untransform(params);
  return {
    transform(originalValue, model2, propName, setOriginalValue) {
      const modelCache = getOrCreate(cache, model2, () => /* @__PURE__ */ new Map());
      let propCache2 = modelCache.get(propName);
      if ((propCache2 == null ? void 0 : propCache2.originalValue) !== originalValue) {
        modelCache.delete(propName);
        propCache2 = void 0;
      }
      const transformedValue = transform({
        originalValue,
        cachedTransformedValue: propCache2 == null ? void 0 : propCache2.transformedValue,
        setOriginalValue
      });
      modelCache.set(propName, {
        originalValue,
        transformedValue
      });
      return transformedValue;
    },
    untransform(transformedValue, model2, propName) {
      const modelCache = getOrCreate(cache, model2, () => /* @__PURE__ */ new Map());
      cacheTransformResult = false;
      const originalValue = untransform({
        transformedValue,
        cacheTransformedValue: cacheTransformedValueFn
      });
      if (cacheTransformResult) {
        modelCache.set(propName, { originalValue, transformedValue });
      } else {
        modelCache.delete(propName);
      }
      return originalValue;
    }
  };
}
function getModelPropDefaultValue(propData) {
  if (propData._defaultFn !== noDefaultValue) {
    return propData._defaultFn();
  }
  if (propData._defaultValue !== noDefaultValue) {
    return propData._defaultValue;
  }
  return noDefaultValue;
}
let urlAlphabet = "useandom-26T198340PX75pxJACKVERYMINDBUSHWOLF_GQZbfghjklqvwyzrict";
let nanoid = (size = 21) => {
  let id = "";
  let i = size | 0;
  while (i--) {
    id += urlAlphabet[Math.random() * 64 | 0];
  }
  return id;
};
var ModelAutoTypeCheckingMode = /* @__PURE__ */ ((ModelAutoTypeCheckingMode2) => {
  ModelAutoTypeCheckingMode2["DevModeOnly"] = "devModeOnly";
  ModelAutoTypeCheckingMode2["AlwaysOn"] = "alwaysOn";
  ModelAutoTypeCheckingMode2["AlwaysOff"] = "alwaysOff";
  return ModelAutoTypeCheckingMode2;
})(ModelAutoTypeCheckingMode || {});
let localId = 0;
const localBaseId = nanoid();
function defaultModelIdGenerator() {
  const id = localId.toString(36) + "-" + localBaseId;
  localId++;
  return id;
}
let globalConfig = {
  modelAutoTypeChecking: "devModeOnly",
  modelIdGenerator: defaultModelIdGenerator,
  allowUndefinedArrayElements: false,
  showDuplicateModelNameWarnings: true
};
function setGlobalConfig(config) {
  globalConfig = Object.freeze({
    ...globalConfig,
    ...config
  });
}
function getGlobalConfig() {
  return globalConfig;
}
function isModelAutoTypeCheckingEnabled() {
  switch (getGlobalConfig().modelAutoTypeChecking) {
    case "devModeOnly":
      return inDevMode;
    case "alwaysOff":
      return false;
    case "alwaysOn":
      return true;
    default:
      throw failure(
        `invalid 'modelAutoTypeChecking' config value - ${globalConfig.modelAutoTypeChecking}`
      );
  }
}
const objectChildren = /* @__PURE__ */ new WeakMap();
function getObjectChildrenObject(node) {
  let obj = objectChildren.get(node);
  if (!obj) {
    obj = {
      shallow: /* @__PURE__ */ new Set(),
      shallowAtom: void 0,
      // will be created when first observed
      deep: /* @__PURE__ */ new Set(),
      deepDirty: true,
      deepAtom: void 0,
      // will be created when first observed
      extensionsData: initExtensionsData()
    };
    objectChildren.set(node, obj);
  }
  return obj;
}
function getObjectChildren(node) {
  const obj = getObjectChildrenObject(node);
  if (!obj.shallowAtom) {
    obj.shallowAtom = createAtom("shallowChildrenAtom");
  }
  obj.shallowAtom.reportObserved();
  return obj.shallow;
}
function getDeepObjectChildren(node) {
  const obj = getObjectChildrenObject(node);
  if (obj.deepDirty) {
    updateDeepObjectChildren(node);
  }
  if (!obj.deepAtom) {
    obj.deepAtom = createAtom("deepChildrenAtom");
  }
  obj.deepAtom.reportObserved();
  return obj;
}
function addNodeToDeepLists(node, data) {
  data.deep.add(node);
  extensions.forEach((extension, dataSymbol) => {
    extension.addNode(node, data.extensionsData.get(dataSymbol));
  });
}
const updateDeepObjectChildren = action((node) => {
  var _a2;
  const obj = getObjectChildrenObject(node);
  if (!obj.deepDirty) {
    return obj;
  }
  obj.deep = /* @__PURE__ */ new Set();
  obj.extensionsData = initExtensionsData();
  const childrenIterator = obj.shallow.values();
  let childrenIteratorResult = childrenIterator.next();
  while (!childrenIteratorResult.done) {
    addNodeToDeepLists(childrenIteratorResult.value, obj);
    const childDeepChildren = updateDeepObjectChildren(childrenIteratorResult.value).deep;
    const childDeepChildrenIterator = childDeepChildren.values();
    let childDeepChildrenIteratorResult = childDeepChildrenIterator.next();
    while (!childDeepChildrenIteratorResult.done) {
      addNodeToDeepLists(childDeepChildrenIteratorResult.value, obj);
      childDeepChildrenIteratorResult = childDeepChildrenIterator.next();
    }
    childrenIteratorResult = childrenIterator.next();
  }
  obj.deepDirty = false;
  (_a2 = obj.deepAtom) == null ? void 0 : _a2.reportChanged();
  return obj;
});
const addObjectChild = action((node, child) => {
  var _a2;
  const obj = getObjectChildrenObject(node);
  obj.shallow.add(child);
  (_a2 = obj.shallowAtom) == null ? void 0 : _a2.reportChanged();
  invalidateDeepChildren(node, obj);
});
const removeObjectChild = action((node, child) => {
  var _a2;
  const obj = getObjectChildrenObject(node);
  obj.shallow.delete(child);
  (_a2 = obj.shallowAtom) == null ? void 0 : _a2.reportChanged();
  invalidateDeepChildren(node, obj);
});
function invalidateDeepChildren(node, obj) {
  var _a2;
  let currentNode = node;
  let currentObj = obj;
  while (currentNode) {
    currentObj.deepDirty = true;
    (_a2 = currentObj.deepAtom) == null ? void 0 : _a2.reportChanged();
    currentNode = fastGetParent(currentNode, false);
    if (currentNode) {
      currentObj = getObjectChildrenObject(currentNode);
    }
  }
}
const extensions = /* @__PURE__ */ new Map();
function registerDeepObjectChildrenExtension(extension) {
  const dataSymbol = {};
  extensions.set(dataSymbol, extension);
  return (data) => {
    return data.extensionsData.get(dataSymbol);
  };
}
function initExtensionsData() {
  const extensionsData = /* @__PURE__ */ new WeakMap();
  extensions.forEach((extension, dataSymbol) => {
    extensionsData.set(dataSymbol, extension.initData());
  });
  return extensionsData;
}
function canWrite() {
  return !getActionProtection() || !!getCurrentActionContext();
}
function assertCanWrite() {
  if (!canWrite()) {
    throw failure("data changes must be performed inside model actions");
  }
}
let actionProtection = true;
function getActionProtection() {
  return actionProtection;
}
function setActionProtection(protection) {
  actionProtection = protection;
}
const pendingActions = [];
function isActionRunning() {
  return !getActionProtection() || !!getCurrentActionContext();
}
function enqueuePendingAction(action2) {
  if (isActionRunning()) {
    pendingActions.push(action2);
  } else {
    action2();
  }
}
let pendingActionsRunning = false;
function tryRunPendingActions() {
  if (isActionRunning() || pendingActionsRunning) {
    return;
  }
  pendingActionsRunning = true;
  try {
    while (pendingActions.length > 0) {
      const nextAction = pendingActions.shift();
      nextAction();
    }
  } finally {
    pendingActionsRunning = false;
  }
}
function getModelMetadata(modelClassOrInstance) {
  if (isModel(modelClassOrInstance)) {
    return modelClassOrInstance.constructor[modelMetadataSymbol];
  } else if (isModelClass(modelClassOrInstance)) {
    return modelClassOrInstance[modelMetadataSymbol];
  } else {
    throw failure(`modelClassOrInstance must be a model class or instance`);
  }
}
const modelIdPropertyNameCache = /* @__PURE__ */ new WeakMap();
function getModelIdPropertyName(modelClass2) {
  return getOrCreate(
    modelIdPropertyNameCache,
    modelClass2,
    () => getModelMetadata(modelClass2).modelIdProperty
  );
}
var HookAction = /* @__PURE__ */ ((HookAction2) => {
  HookAction2["OnInit"] = "$$onInit";
  HookAction2["OnLazyInit"] = "$$onLazyInit";
  HookAction2["OnAttachedToRootStore"] = "$$onAttachedToRootStore";
  HookAction2["OnAttachedToRootStoreDisposer"] = "$$onAttachedToRootStoreDisposer";
  return HookAction2;
})(HookAction || {});
const hookActionValues = new Set(Object.values(HookAction));
function isHookAction(actionName) {
  return hookActionValues.has(actionName);
}
var WalkTreeMode = /* @__PURE__ */ ((WalkTreeMode2) => {
  WalkTreeMode2["ParentFirst"] = "parentFirst";
  WalkTreeMode2["ChildrenFirst"] = "childrenFirst";
  return WalkTreeMode2;
})(WalkTreeMode || {});
function walkTree(root, visit, mode) {
  assertTweakedObject(root, "root");
  if (mode === "parentFirst") {
    return walkTreeParentFirst(root, visit);
  } else {
    return walkTreeChildrenFirst(root, visit);
  }
}
function walkTreeParentFirst(root, visit) {
  const stack = [root];
  while (stack.length > 0) {
    const node = stack.pop();
    const ret = visit(node);
    if (ret !== void 0) {
      return ret;
    }
    const children = getObjectChildren(node);
    stack.length += children.size;
    let i = stack.length - 1;
    const childrenIter = children.values();
    let ch = childrenIter.next();
    while (!ch.done) {
      stack[i--] = ch.value;
      ch = childrenIter.next();
    }
  }
  return void 0;
}
function walkTreeChildrenFirst(root, visit) {
  const childrenIter = getObjectChildren(root).values();
  let ch = childrenIter.next();
  while (!ch.done) {
    const ret2 = walkTreeChildrenFirst(ch.value, visit);
    if (ret2 !== void 0) {
      return ret2;
    }
    ch = childrenIter.next();
  }
  const ret = visit(root);
  if (ret !== void 0) {
    return ret;
  }
  return void 0;
}
function getComputedTreeResult(computedFns, visit, tree) {
  let cmpted = computedFns.get(tree);
  if (!cmpted) {
    cmpted = computed(() => {
      return walkTreeAggregate(tree, visit, (ch) => getComputedTreeResult(computedFns, visit, ch));
    });
    computedFns.set(tree, cmpted);
  }
  return cmpted.get();
}
function computedWalkTreeAggregate(visit) {
  const computedFns = /* @__PURE__ */ new WeakMap();
  return {
    walk: (n) => getComputedTreeResult(computedFns, visit, n)
  };
}
function walkTreeAggregate(target, visit, recurse) {
  let map;
  const rootVal = visit(target);
  const childrenMap = getObjectChildren(target);
  const childrenIter = childrenMap.values();
  let ch = childrenIter.next();
  if (rootVal === void 0 && childrenMap.size === 1) {
    return recurse(ch.value);
  }
  while (!ch.done) {
    const childMap = recurse(ch.value);
    if (childMap) {
      if (!map) {
        map = /* @__PURE__ */ new Map();
      }
      const mapIter = childMap.keys();
      let mapCur = mapIter.next();
      while (!mapCur.done) {
        const key = mapCur.value;
        const val = childMap.get(key);
        map.set(key, val);
        mapCur = mapIter.next();
      }
    }
    ch = childrenIter.next();
  }
  if (rootVal !== void 0) {
    if (!map) {
      map = /* @__PURE__ */ new Map();
    }
    map.set(rootVal, target);
  }
  return map;
}
const onAttachedDisposers = /* @__PURE__ */ new WeakMap();
const attachedToRootStore = /* @__PURE__ */ new WeakSet();
const attachToRootStore = action(
  "attachToRootStore",
  (rootStore, child) => {
    const childrenToCall = [];
    walkTree(
      child,
      (ch) => {
        if (attachedToRootStore.has(ch)) {
          return;
        }
        attachedToRootStore.add(ch);
        if (ch instanceof BaseModel && ch.onAttachedToRootStore) {
          wrapModelMethodInActionIfNeeded(
            ch,
            "onAttachedToRootStore",
            HookAction.OnAttachedToRootStore
          );
          childrenToCall.push(ch);
        }
      },
      WalkTreeMode.ParentFirst
    );
    const childrenToCallLen = childrenToCall.length;
    for (let i = 0; i < childrenToCallLen; i++) {
      const ch = childrenToCall[i];
      const disposer = ch.onAttachedToRootStore(rootStore);
      if (disposer) {
        onAttachedDisposers.set(ch, disposer);
      }
    }
  }
);
const detachFromRootStore = action("detachFromRootStore", (child) => {
  const disposersToCall = [];
  walkTree(
    child,
    (ch) => {
      if (!attachedToRootStore.delete(ch)) {
        return;
      }
      const disposer = onAttachedDisposers.get(ch);
      if (disposer) {
        const disposerAction = wrapInAction({
          nameOrNameFn: HookAction.OnAttachedToRootStoreDisposer,
          fn: disposer,
          actionType: ActionContextActionType.Sync
        }).bind(ch);
        onAttachedDisposers.delete(ch);
        disposersToCall.push(disposerAction);
      }
    },
    WalkTreeMode.ChildrenFirst
  );
  const disposersToCallLen = disposersToCall.length;
  for (let i = 0; i < disposersToCallLen; i++) {
    disposersToCall[i]();
  }
});
const rootStoreRegistry = /* @__PURE__ */ new WeakMap();
function createRootStoreEntry() {
  return {
    atom: void 0,
    // will be created when first observed
    is: false
  };
}
const getOrCreateRootStoreEntry = (node) => getOrCreate(rootStoreRegistry, node, createRootStoreEntry);
const registerRootStore = action(
  "registerRootStore",
  (node) => {
    var _a2;
    assertTweakedObject(node, "node");
    const entry = getOrCreateRootStoreEntry(node);
    if (entry.is) {
      throw failure("object already registered as root store");
    }
    if (!isRoot(node)) {
      throw failure("a root store must not have a parent");
    }
    entry.is = true;
    attachToRootStore(node, node);
    (_a2 = entry.atom) == null ? void 0 : _a2.reportChanged();
    return node;
  }
);
const unregisterRootStore = action("unregisterRootStore", (node) => {
  var _a2;
  if (!isRootStore(node)) {
    throw failure("not a root store");
  }
  const entry = getOrCreateRootStoreEntry(node);
  entry.is = false;
  detachFromRootStore(node);
  (_a2 = entry.atom) == null ? void 0 : _a2.reportChanged();
});
function isRootStore(node) {
  assertTweakedObject(node, "node");
  const entry = getOrCreateRootStoreEntry(node);
  if (!entry.atom) {
    entry.atom = createAtom("rootStore");
  }
  entry.atom.reportObserved();
  return entry.is;
}
function fastIsRootStoreNoAtom(node) {
  var _a2;
  return !!((_a2 = rootStoreRegistry.get(node)) == null ? void 0 : _a2.is);
}
function getRootStore(node) {
  assertTweakedObject(node, "node");
  const root = fastGetRoot(node, true);
  return isRootStore(root) ? root : void 0;
}
class TypeCheckError {
  /**
   * Creates an instance of TypeError.
   * @param path Sub-path (where the root is the value being type checked) where the error occured.
   * @param expectedTypeName Name of the expected type.
   * @param actualValue Actual value.
   * @param typeCheckedValue The value where the type check was invoked.
   */
  constructor(path, expectedTypeName, actualValue, typeCheckedValue) {
    /**
     * The type check error message.
     */
    __publicField(this, "message");
    this.path = path;
    this.expectedTypeName = expectedTypeName;
    this.actualValue = actualValue;
    this.typeCheckedValue = typeCheckedValue;
    let rootPath = [];
    if (this.typeCheckedValue && isTweakedObject(this.typeCheckedValue, true)) {
      rootPath = fastGetRootPath(this.typeCheckedValue, false).path;
    }
    const actualValueSnapshot = isTweakedObject(this.actualValue, true) ? getSnapshot(this.actualValue) : this.actualValue;
    this.message = `TypeCheckError: [/${[...rootPath, ...this.path].join(
      "/"
    )}] Expected a value of type <${this.expectedTypeName}> but got the value <${JSON.stringify(
      actualValueSnapshot
    )}> instead`;
  }
  /**
   * Throws the type check error as an actual error.
   */
  throw() {
    throw failure(this.message);
  }
}
const emptyPath = [];
const typeCheckersWithCachedResultsOfObject = /* @__PURE__ */ new WeakMap();
var TypeCheckerBaseType = /* @__PURE__ */ ((TypeCheckerBaseType2) => {
  TypeCheckerBaseType2["Object"] = "object";
  TypeCheckerBaseType2["Array"] = "array";
  TypeCheckerBaseType2["Primitive"] = "primitive";
  TypeCheckerBaseType2["Any"] = "any";
  return TypeCheckerBaseType2;
})(TypeCheckerBaseType || {});
function getTypeCheckerBaseTypeFromValue(value) {
  if (isArray(value)) {
    return "array";
  }
  if (isObject(value)) {
    return "object";
  }
  if (isPrimitive(value)) {
    return "primitive";
  }
  return "any";
}
function invalidateCachedTypeCheckerResult(obj) {
  let current = obj;
  while (current) {
    const set2 = typeCheckersWithCachedResultsOfObject.get(current);
    if (set2) {
      typeCheckersWithCachedResultsOfObject.delete(current);
      set2.forEach((typeChecker) => {
        typeChecker.invalidateCachedResult(current);
      });
    }
    current = fastGetParentIncludingDataObjects(current, false);
  }
}
const typeCheckersWithCachedSnapshotProcessorResultsOfObject = /* @__PURE__ */ new WeakMap();
function invalidateCachedToSnapshotProcessorResult(obj) {
  const set2 = typeCheckersWithCachedSnapshotProcessorResultsOfObject.get(obj);
  if (set2) {
    set2.forEach((typeChecker) => {
      typeChecker.invalidateSnapshotProcessorCachedResult(obj);
    });
    typeCheckersWithCachedSnapshotProcessorResultsOfObject.delete(obj);
  }
}
class TypeChecker {
  constructor(baseType, _check, getTypeName, typeInfoGen, snapshotType, _fromSnapshotProcessor, _toSnapshotProcessor) {
    __publicField(this, "checkResultCache");
    __publicField(this, "unchecked");
    __publicField(this, "_cachedTypeInfoGen");
    __publicField(this, "fromSnapshotProcessor", (sn) => {
      return this._fromSnapshotProcessor(sn);
    });
    __publicField(this, "_toSnapshotProcessorCache", /* @__PURE__ */ new WeakMap());
    __publicField(this, "toSnapshotProcessor", (sn) => {
      if (typeof sn !== "object" || sn === null) {
        return this._toSnapshotProcessor(sn);
      }
      if (this._toSnapshotProcessorCache.has(sn)) {
        return this._toSnapshotProcessorCache.get(sn);
      }
      const val = this._toSnapshotProcessor(sn);
      this._toSnapshotProcessorCache.set(sn, val);
      const typeCheckerSet = getOrCreate(
        typeCheckersWithCachedSnapshotProcessorResultsOfObject,
        sn,
        () => /* @__PURE__ */ new Set()
      );
      typeCheckerSet.add(this);
      return val;
    });
    this.baseType = baseType;
    this._check = _check;
    this.getTypeName = getTypeName;
    this.typeInfoGen = typeInfoGen;
    this.snapshotType = snapshotType;
    this._fromSnapshotProcessor = _fromSnapshotProcessor;
    this._toSnapshotProcessor = _toSnapshotProcessor;
    this.unchecked = !_check;
    this._cachedTypeInfoGen = lazy(typeInfoGen);
  }
  createCacheIfNeeded() {
    if (!this.checkResultCache) {
      this.checkResultCache = /* @__PURE__ */ new WeakMap();
    }
    return this.checkResultCache;
  }
  setCachedResult(obj, newCacheValue) {
    this.createCacheIfNeeded().set(obj, newCacheValue);
    const typeCheckerSet = getOrCreate(typeCheckersWithCachedResultsOfObject, obj, () => /* @__PURE__ */ new Set());
    typeCheckerSet.add(this);
  }
  invalidateCachedResult(obj) {
    var _a2;
    (_a2 = this.checkResultCache) == null ? void 0 : _a2.delete(obj);
  }
  getCachedResult(obj) {
    var _a2;
    return (_a2 = this.checkResultCache) == null ? void 0 : _a2.get(obj);
  }
  check(value, path, typeCheckedValue) {
    if (this.unchecked) {
      return null;
    }
    if (!isTweakedObject(value, true)) {
      return this._check(value, path, typeCheckedValue);
    }
    let cachedResult = this.getCachedResult(value);
    if (cachedResult === void 0) {
      cachedResult = this._check(value, emptyPath, void 0);
      this.setCachedResult(value, cachedResult);
    }
    if (cachedResult) {
      return new TypeCheckError(
        [...path, ...cachedResult.path],
        cachedResult.expectedTypeName,
        cachedResult.actualValue,
        typeCheckedValue
      );
    } else {
      return null;
    }
  }
  get typeInfo() {
    return this._cachedTypeInfoGen(this);
  }
  invalidateSnapshotProcessorCachedResult(obj) {
    this._toSnapshotProcessorCache.delete(obj);
  }
}
const lateTypeCheckerSymbol = Symbol("lateTypeCheker");
function lateTypeChecker(fn, typeInfoGen) {
  let cached;
  const ltc = () => {
    if (cached) {
      return cached;
    }
    cached = fn();
    return cached;
  };
  ltc[lateTypeCheckerSymbol] = true;
  const cachedTypeInfoGen = lazy(typeInfoGen);
  Object.defineProperty(ltc, "typeInfo", {
    enumerable: true,
    configurable: false,
    get() {
      return cachedTypeInfoGen(ltc);
    }
  });
  return ltc;
}
function isLateTypeChecker(ltc) {
  return typeof ltc === "function" && lateTypeCheckerSymbol in ltc;
}
class TypeInfo {
  constructor(thisType) {
    this.thisType = thisType;
  }
}
const snapshots = /* @__PURE__ */ new WeakMap();
const frozenState = /* @__PURE__ */ new WeakMap();
function getInternalSnapshot(value) {
  return snapshots.get(value);
}
function getInternalSnapshotParent(sn, parentPath) {
  if (!(parentPath && sn)) {
    return void 0;
  }
  const parentSn = getInternalSnapshot(parentPath.parent);
  if (!parentSn) {
    return void 0;
  }
  return {
    parentSnapshot: parentSn,
    parentPath
  };
}
const unsetInternalSnapshot = action("unsetInternalSnapshot", (value) => {
  var _a2;
  const oldSn = getInternalSnapshot(value);
  if (oldSn) {
    snapshots.delete(value);
    (_a2 = oldSn.atom) == null ? void 0 : _a2.reportChanged();
  }
});
const setNewInternalSnapshot = action(
  "setNewInternalSnapshot",
  (value, untransformed, transformFn, markAsFrozen = false) => {
    var _a2;
    const transformed = transformFn ? transformFn(untransformed) : untransformed;
    const sn = {
      untransformed,
      transformFn,
      transformed,
      atom: void 0
      // will be created when first observed
    };
    frozenState.set(untransformed, markAsFrozen);
    if (transformed !== void 0 && transformed !== untransformed) {
      frozenState.set(transformed, markAsFrozen);
    }
    snapshots.set(value, sn);
    (_a2 = sn.atom) == null ? void 0 : _a2.reportChanged();
  }
);
const updateInternalSnapshot = action(
  "updateInternalSnapshot",
  (value, mutate) => {
    var _a2;
    const sn = getInternalSnapshot(value);
    let untransformed = sn.untransformed;
    const snFrozen = frozenState.get(untransformed);
    if (snFrozen) {
      if (Array.isArray(untransformed)) {
        untransformed = untransformed.slice();
      } else {
        untransformed = Object.assign({}, untransformed);
      }
    } else {
      invalidateCachedToSnapshotProcessorResult(untransformed);
    }
    mutate(untransformed);
    sn.untransformed = untransformed;
    sn.transformed = sn.transformFn ? sn.transformFn(untransformed) : untransformed;
    frozenState.set(sn.untransformed, false);
    if (sn.transformed !== void 0) {
      frozenState.set(sn.transformed, false);
    }
    (_a2 = sn.atom) == null ? void 0 : _a2.reportChanged();
    const parent = getInternalSnapshotParent(sn, fastGetParentPath(value, false));
    if (parent) {
      const { parentSnapshot, parentPath } = parent;
      if (parentSnapshot) {
        const path = parentPath.path;
        updateInternalSnapshot(parentPath.parent, (objOrArray) => {
          objOrArray[path] = sn.transformed;
        });
      }
    }
  }
);
function reportInternalSnapshotObserved(sn) {
  if (!sn.atom) {
    sn.atom = createAtom("snapshot");
  }
  sn.atom.reportObserved();
}
function freezeInternalSnapshot(data) {
  if (isPrimitive(data)) {
    return data;
  }
  const isFrozen = frozenState.get(data);
  if (isFrozen === void 0 || isFrozen) {
    return data;
  }
  if (Array.isArray(data)) {
    for (let i = 0; i < data.length; i++) {
      freezeInternalSnapshot(data[i]);
    }
  } else {
    const keys2 = Object.keys(data);
    for (let i = 0; i < keys2.length; i++) {
      freezeInternalSnapshot(data[keys2[i]]);
    }
  }
  frozenState.set(data, true);
  return data;
}
const emptyPatchArray = [];
class InternalPatchRecorder {
  constructor() {
    __publicField(this, "patches", emptyPatchArray);
    __publicField(this, "invPatches", emptyPatchArray);
  }
  reset() {
    this.patches = emptyPatchArray;
    this.invPatches = emptyPatchArray;
  }
  record(patches, invPatches) {
    this.patches = patches;
    this.invPatches = invPatches;
  }
  emit(obj) {
    emitPatches(obj, this.patches, this.invPatches);
    this.reset();
  }
}
function emitPatches(obj, patches, invPatches) {
  if (patches.length > 0 || invPatches.length > 0) {
    emitGlobalPatch(obj, patches, invPatches);
    emitPatch(obj, patches, invPatches);
  }
}
const patchListeners = /* @__PURE__ */ new WeakMap();
const globalPatchListeners = [];
function onPatches(subtreeRoot, listener) {
  assertTweakedObject(subtreeRoot, "subtreeRoot");
  assertIsFunction(listener, "listener");
  if (!isAction(listener)) {
    listener = action(listener.name || "onPatchesListener", listener);
  }
  let listenersForObject = patchListeners.get(subtreeRoot);
  if (!listenersForObject) {
    listenersForObject = [];
    patchListeners.set(subtreeRoot, listenersForObject);
  }
  listenersForObject.push(listener);
  return () => {
    deleteFromArray(listenersForObject, listener);
  };
}
function onGlobalPatches(listener) {
  assertIsFunction(listener, "listener");
  if (!isAction(listener)) {
    listener = action(listener.name || "onGlobalPatchesListener", listener);
  }
  globalPatchListeners.push(listener);
  return () => {
    deleteFromArray(globalPatchListeners, listener);
  };
}
function emitGlobalPatch(obj, patches, inversePatches) {
  for (let i = 0; i < globalPatchListeners.length; i++) {
    const listener = globalPatchListeners[i];
    listener(obj, patches, inversePatches);
  }
}
function emitPatchForTarget(obj, patches, inversePatches, pathPrefix) {
  const listenersForObject = patchListeners.get(obj);
  if (!listenersForObject || listenersForObject.length === 0) {
    return;
  }
  const fixPath = (patchesArray) => pathPrefix.length > 0 ? patchesArray.map((p) => addPathToPatch(p, pathPrefix)) : patchesArray;
  const patchesWithPathPrefix = fixPath(patches);
  const invPatchesWithPathPrefix = fixPath(inversePatches);
  for (let i = 0; i < listenersForObject.length; i++) {
    const listener = listenersForObject[i];
    listener(patchesWithPathPrefix, invPatchesWithPathPrefix);
  }
}
function emitPatch(obj, patches, inversePatches) {
  const pathPrefix = [];
  emitPatchForTarget(obj, patches, inversePatches, pathPrefix);
  let parentPath = fastGetParentPath(obj, false);
  while (parentPath) {
    pathPrefix.unshift(parentPath.path);
    emitPatchForTarget(parentPath.parent, patches, inversePatches, pathPrefix);
    parentPath = fastGetParentPath(parentPath.parent, false);
  }
}
function addPathToPatch(patch, pathPrefix) {
  return {
    ...patch,
    path: [...pathPrefix, ...patch.path]
  };
}
const getValueSnapshotForPatch = (v) => {
  if (isPrimitive(v)) {
    return v;
  }
  const internalSnapshot = getInternalSnapshot(v);
  if (!internalSnapshot) {
    return v;
  }
  return freezeInternalSnapshot(internalSnapshot.transformed);
};
function createPatchForObjectValueChange(path, oldValue, newValue) {
  return newValue === void 0 ? { op: "remove", path } : oldValue === void 0 ? {
    op: "add",
    path,
    value: getValueSnapshotForPatch(newValue)
  } : {
    op: "replace",
    path,
    value: getValueSnapshotForPatch(newValue)
  };
}
function setIfDifferent(target, key, value) {
  if (target[key] !== value || !(key in target)) {
    set(target, key, value);
  }
}
function setIfDifferentWithReturn(target, key, value) {
  if (target[key] !== value || !(key in target)) {
    set(target, key, value);
    return true;
  }
  return false;
}
var TweakerPriority = /* @__PURE__ */ ((TweakerPriority2) => {
  TweakerPriority2[TweakerPriority2["Model"] = 0] = "Model";
  TweakerPriority2[TweakerPriority2["Array"] = 1] = "Array";
  TweakerPriority2[TweakerPriority2["PlainObject"] = 2] = "PlainObject";
  TweakerPriority2[TweakerPriority2["Frozen"] = 3] = "Frozen";
  return TweakerPriority2;
})(TweakerPriority || {});
function findParent(child, predicate, maxDepth = 0) {
  const foundParentPath = findParentPath(child, predicate, maxDepth);
  return foundParentPath ? foundParentPath.parent : void 0;
}
function findParentPath(child, predicate, maxDepth = 0) {
  assertTweakedObject(child, "child");
  const path = [];
  let current = child;
  let depth = 0;
  let parentPath;
  while (parentPath = fastGetParentPath(current, true)) {
    path.unshift(parentPath.path);
    current = parentPath.parent;
    if (predicate(current)) {
      return {
        parent: current,
        path
      };
    }
    depth++;
    if (maxDepth > 0 && depth === maxDepth) {
      break;
    }
  }
  return void 0;
}
function getChildrenObjects(node, options) {
  assertTweakedObject(node, "node");
  if (options == null ? void 0 : options.deep) {
    return getDeepObjectChildren(node).deep;
  } else {
    return getObjectChildren(node);
  }
}
function findChildren(root, predicate, options) {
  const children = getChildrenObjects(root, options);
  const set2 = /* @__PURE__ */ new Set();
  const iter = children.values();
  let cur = iter.next();
  while (!cur.done) {
    if (predicate(cur.value)) {
      set2.add(cur.value);
    }
    cur = iter.next();
  }
  return set2;
}
function onChildAttachedTo(target, fn, options) {
  assertIsFunction(target, "target");
  assertIsFunction(fn, "fn");
  const opts = {
    deep: false,
    fireForCurrentChildren: true,
    ...options
  };
  const detachDisposers = /* @__PURE__ */ new WeakMap();
  const runDetachDisposer = (n) => {
    const detachDisposer = detachDisposers.get(n);
    if (detachDisposer) {
      detachDisposers.delete(n);
      detachDisposer();
    }
  };
  const addDetachDisposer = (n, disposer2) => {
    if (disposer2) {
      detachDisposers.set(n, action(disposer2));
    }
  };
  const getChildrenObjectOpts = { deep: opts.deep };
  const getCurrentChildren = () => {
    const t = target();
    assertTweakedObject(t, "target()");
    const children = getChildrenObjects(t, getChildrenObjectOpts);
    const set2 = /* @__PURE__ */ new Set();
    const iter = children.values();
    let cur = iter.next();
    while (!cur.done) {
      set2.add(cur.value);
      cur = iter.next();
    }
    return set2;
  };
  const currentChildren = opts.fireForCurrentChildren ? /* @__PURE__ */ new Set() : getCurrentChildren();
  const disposer = reaction(
    () => getCurrentChildren(),
    (newChildren) => {
      const disposersToRun = [];
      const currentChildrenIter = currentChildren.values();
      let currentChildrenCur = currentChildrenIter.next();
      while (!currentChildrenCur.done) {
        const n = currentChildrenCur.value;
        if (!newChildren.has(n)) {
          currentChildren.delete(n);
          disposersToRun.push(n);
        }
        currentChildrenCur = currentChildrenIter.next();
      }
      if (disposersToRun.length > 0) {
        for (let i = disposersToRun.length - 1; i >= 0; i--) {
          runDetachDisposer(disposersToRun[i]);
        }
      }
      const newChildrenIter = newChildren.values();
      let newChildrenCur = newChildrenIter.next();
      while (!newChildrenCur.done) {
        const n = newChildrenCur.value;
        if (!currentChildren.has(n)) {
          currentChildren.add(n);
          const detachAction = runInAction(() => fn(n));
          addDetachDisposer(n, detachAction);
        }
        newChildrenCur = newChildrenIter.next();
      }
    },
    {
      fireImmediately: true
    }
  );
  return (runDetachDisposers) => {
    disposer();
    if (runDetachDisposers) {
      const currentChildrenIter = currentChildren.values();
      let currentChildrenCur = currentChildrenIter.next();
      while (!currentChildrenCur.done) {
        const n = currentChildrenCur.value;
        runDetachDisposer(n);
        currentChildrenCur = currentChildrenIter.next();
      }
    }
    currentChildren.clear();
  };
}
function isChildOfParent(child, parent) {
  assertTweakedObject(child, "child");
  assertTweakedObject(parent, "parent");
  let currentParent = fastGetParent(child, true);
  while (currentParent) {
    if (currentParent === parent) {
      return true;
    }
    currentParent = fastGetParent(currentParent, true);
  }
  return false;
}
function isParentOfChild(parent, child) {
  return isChildOfParent(child, parent);
}
let typeCheckingAllowed = true;
function withoutTypeChecking(fn) {
  const oldTypeCheckingAllowed = typeCheckingAllowed;
  typeCheckingAllowed = false;
  try {
    fn();
  } finally {
    typeCheckingAllowed = oldTypeCheckingAllowed;
  }
}
function isTypeCheckingAllowed() {
  return typeCheckingAllowed;
}
var SnapshotterAndReconcilerPriority = /* @__PURE__ */ ((SnapshotterAndReconcilerPriority2) => {
  SnapshotterAndReconcilerPriority2[SnapshotterAndReconcilerPriority2["Array"] = 0] = "Array";
  SnapshotterAndReconcilerPriority2[SnapshotterAndReconcilerPriority2["Frozen"] = 1] = "Frozen";
  SnapshotterAndReconcilerPriority2[SnapshotterAndReconcilerPriority2["Model"] = 2] = "Model";
  SnapshotterAndReconcilerPriority2[SnapshotterAndReconcilerPriority2["PlainObject"] = 3] = "PlainObject";
  return SnapshotterAndReconcilerPriority2;
})(SnapshotterAndReconcilerPriority || {});
function reconcileArraySnapshot(value, sn, modelPool) {
  if (!isArray(value)) {
    return fromSnapshot(sn);
  }
  const snapshotBeforeChanges = getSnapshot(value);
  withoutTypeChecking(() => {
    if (value.length > sn.length) {
      value.splice(sn.length, value.length - sn.length);
    }
    for (let i = 0; i < value.length; i++) {
      const oldValue = value[i];
      const newValue = reconcileSnapshot(oldValue, sn[i], modelPool, value);
      detachIfNeeded(newValue, oldValue, modelPool);
      setIfDifferent(value, i, newValue);
    }
    for (let i = value.length; i < sn.length; i++) {
      const newValue = reconcileSnapshot(void 0, sn[i], modelPool, value);
      detachIfNeeded(newValue, void 0, modelPool);
      value.push(newValue);
    }
  });
  runTypeCheckingAfterChange(value, void 0, snapshotBeforeChanges);
  return value;
}
function registerArraySnapshotReconciler() {
  registerReconciler(SnapshotterAndReconcilerPriority.Array, (value, sn, modelPool) => {
    if (isArray(sn)) {
      return reconcileArraySnapshot(value, sn, modelPool);
    }
    return void 0;
  });
}
var FrozenCheckMode = /* @__PURE__ */ ((FrozenCheckMode2) => {
  FrozenCheckMode2["DevModeOnly"] = "devModeOnly";
  FrozenCheckMode2["On"] = "on";
  FrozenCheckMode2["Off"] = "off";
  return FrozenCheckMode2;
})(FrozenCheckMode || {});
const frozenKey = "$frozen";
class Frozen {
  /**
   * Creates an instance of Frozen.
   * Do not use directly, use `frozen` instead.
   *
   * @param dataToFreeze
   * @param checkMode
   */
  constructor(dataToFreeze, checkMode = "devModeOnly") {
    /**
     * Frozen data, deeply immutable.
     */
    __publicField(this, "data");
    if (isObservable(dataToFreeze)) {
      dataToFreeze = toJS(dataToFreeze);
    }
    const check = checkMode === "on" || inDevMode && checkMode === "devModeOnly";
    if (check) {
      checkDataIsSerializableAndFreeze(dataToFreeze);
    }
    this.data = dataToFreeze;
    if (check) {
      Object.freeze(this.data);
    }
    tweak(this, void 0);
  }
}
function frozen(data, checkMode = "devModeOnly") {
  return new Frozen(data, checkMode);
}
function checkDataIsSerializableAndFreeze(data) {
  if (isPrimitive(data)) {
    return;
  }
  if (Array.isArray(data)) {
    const arrLen = data.length;
    for (let i = 0; i < arrLen; i++) {
      const v = data[i];
      if (v === void 0 && !getGlobalConfig().allowUndefinedArrayElements) {
        throw failure(
          "undefined is not supported inside arrays since it is not serializable in JSON, consider using null instead"
        );
      }
      checkDataIsSerializableAndFreeze(v);
    }
    Object.freeze(data);
    return;
  }
  if (isPlainObject(data)) {
    const dataKeys = Object.keys(data);
    const dataKeysLen = dataKeys.length;
    for (let i = 0; i < dataKeysLen; i++) {
      const k = dataKeys[i];
      const v = data[k];
      checkDataIsSerializableAndFreeze(k);
      checkDataIsSerializableAndFreeze(v);
    }