mobx-state-tree/dist/mobx-state-tree.umd.min.js

Opinionated, transactional, MobX powered state container

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this.getEscapedPath(!0)},enumerable:!0,configurable:!0}),t.prototype.getEscapedPath=function(t){return t&&(this.pathAtom||(this.pathAtom=e.createAtom("path")),this.pathAtom.reportObserved()),this.parent?(void 0===this._escapedSubpath&&(this._escapedSubpath=this._subpath?Ut(this._subpath):""),this.parent.getEscapedPath(t)+"/"+this._escapedSubpath):""},Object.defineProperty(t.prototype,"isRoot",{get:function(){return null===this.parent},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"isAlive",{get:function(){return this.state!==ot.DEAD},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"isDetaching",{get:function(){return this.state===ot.DETACHING},enumerable:!0,configurable:!0}),Object.defineProperty(t.prototype,"observableIsAlive",{get:function(){return this.aliveAtom||(this.aliveAtom=e.createAtom("alive")),this.aliveAtom.reportObserved(),this.isAlive},enumerable:!0,configurable:!0}),t.prototype.baseFinalizeCreation=function(t){if(this.state===ot.CREATED){if(this.parent){if(this.parent.state!==ot.FINALIZED)return;this.fireHook(n.afterAttach)}this.state=ot.FINALIZED,t&&t()}},t.prototype.baseFinalizeDeath=function(){this._hookSubscribers&&this._hookSubscribers.clearAll(),this._subpathUponDeath=this._subpath,this._pathUponDeath=this.getEscapedPath(!1),this.baseSetParent(null,""),this.state=ot.DEAD},t.prototype.baseAboutToDie=function(){this.fireHook(n.beforeDestroy)},t}(),T=function(t){function n(e,n,r,i,o){var a=t.call(this,e,n,r,i)||this;try{a.storedValue=e.createNewInstance(o)}catch(t){throw a.state=ot.DEAD,t}return a.state=ot.CREATED,a.finalizeCreation(),a}return s(n,t),Object.defineProperty(n.prototype,"root",{get:function(){if(!this.parent)throw St("This scalar node is not part of a tree");return this.parent.root},enumerable:!0,configurable:!0}),n.prototype.setParent=function(t,e){var n=this.parent!==t,r=this.subpath!==e;(n||r)&&(this.environment=void 0,this.baseSetParent(this.parent,e))},Object.defineProperty(n.prototype,"snapshot",{get:function(){return Nt(this.getSnapshot())},enumerable:!0,configurable:!0}),n.prototype.getSnapshot=function(){return this.type.getSnapshot(this)},n.prototype.toString=function(){var t=(this.isAlive?this.path:this.pathUponDeath)||"<root>";return this.type.name+"@"+t+(this.isAlive?"":" [dead]")},n.prototype.die=function(){this.isAlive&&this.state!==ot.DETACHING&&(this.aboutToDie(),this.finalizeDeath())},n.prototype.finalizeCreation=function(){this.baseFinalizeCreation()},n.prototype.aboutToDie=function(){this.baseAboutToDie()},n.prototype.finalizeDeath=function(){this.baseFinalizeDeath()},n.prototype.fireHook=function(t){this.fireInternalHook(t)},p([e.action],n.prototype,"die",null),n}(I),C=1,E={onError:function(t){throw t}},V=function(t){function r(e,n,r,i,o){var a=t.call(this,e,n,r,i)||this;if(a.nodeId=++C,a.isProtectionEnabled=!0,a._autoUnbox=!0,a._isRunningAction=!1,a._hasSnapshotReaction=!1,a._observableInstanceState=0,a._cachedInitialSnapshotCreated=!1,a.unbox=a.unbox.bind(a),a._initialSnapshot=Nt(o),a.identifierAttribute=e.identifierAttribute,n||(a.identifierCache=new st),a._childNodes=e.initializeChildNodes(a,a._initialSnapshot),a.identifier=null,a.unnormalizedIdentifier=null,a.identifierAttribute&&a._initialSnapshot){var s=a._initialSnapshot[a.identifierAttribute];if(void 0===s){var u=a._childNodes[a.identifierAttribute];u&&(s=u.value)}if("string"!=typeof s&&"number"!=typeof s)throw St("Instance identifier '"+a.identifierAttribute+"' for type '"+a.type.name+"' must be a string or a number");a.identifier=Le(s),a.unnormalizedIdentifier=s}return n?n.root.identifierCache.addNodeToCache(a):a.identifierCache.addNodeToCache(a),a}return s(r,t),r.prototype.applyPatches=function(t){this.createObservableInstanceIfNeeded(),this._applyPatches(t)},r.prototype.applySnapshot=function(t){this.createObservableInstanceIfNeeded(),this._applySnapshot(t)},r.prototype.createObservableInstanceIfNeeded=function(){var t,r;if(0===this._observableInstanceState){this._observableInstanceState=1;for(var i=[],o=this.parent;o&&0===o._observableInstanceState;)i.unshift(o),o=o.parent;try{for(var a=c(i),s=a.next();!s.done;s=a.next()){s.value.createObservableInstanceIfNeeded()}}catch(e){t={error:e}}finally{try{s&&!s.done&&(r=a.return)&&r.call(a)}finally{if(t)throw t.error}}var u,p,h=this.type;try{this.storedValue=h.createNewInstance(this._childNodes),this.preboot(),this._isRunningAction=!0,h.finalizeNewInstance(this,this.storedValue)}catch(t){throw 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e,n=[],r=1;r<arguments.length;r++)n[r-1]=arguments[r];this._internalEvents&&(e=this._internalEvents).emit.apply(e,f([t],n))},r.prototype._internalEventsClear=function(t){this._internalEvents&&this._internalEvents.clear(t)},r.prototype._internalEventsClearAll=function(){this._internalEvents&&this._internalEvents.clearAll()},p([e.action],r.prototype,"createObservableInstanceIfNeeded",null),p([e.computed],r.prototype,"snapshot",null),p([e.action],r.prototype,"detach",null),p([e.action],r.prototype,"die",null),r}(I);!function(t){t[t.String=1]="String",t[t.Number=2]="Number",t[t.Boolean=4]="Boolean",t[t.Date=8]="Date",t[t.Literal=16]="Literal",t[t.Array=32]="Array",t[t.Map=64]="Map",t[t.Object=128]="Object",t[t.Frozen=256]="Frozen",t[t.Optional=512]="Optional",t[t.Reference=1024]="Reference",t[t.Identifier=2048]="Identifier",t[t.Late=4096]="Late",t[t.Refinement=8192]="Refinement",t[t.Union=16384]="Union",t[t.Null=32768]="Null",t[t.Undefined=65536]="Undefined",t[t.Integer=131072]="Integer",t[t.Custom=262144]="Custom",t[t.SnapshotProcessor=524288]="SnapshotProcessor"}(A||(A={}));var 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Trying to store key '"+n+"', but expected: '"+t+"'")}},n.prototype.getSnapshot=function(t){var e={};return t.getChildren().forEach(function(t){e[t.subpath]=t.snapshot}),e},n.prototype.processInitialSnapshot=function(t){var e={};return Object.keys(t).forEach(function(n){e[n]=t[n].getSnapshot()}),e},n.prototype.didChange=function(t){var e=ht(t.object);switch(t.type){case"update":return void e.emitPatch({op:"replace",path:Ut(t.name),value:t.newValue.snapshot,oldValue:t.oldValue?t.oldValue.snapshot:void 0},e);case"add":return void e.emitPatch({op:"add",path:Ut(t.name),value:t.newValue.snapshot,oldValue:void 0},e);case"delete":var n=t.oldValue.snapshot;return t.oldValue.die(),void e.emitPatch({op:"remove",path:Ut(t.name),oldValue:n},e)}},n.prototype.applyPatchLocally=function(t,e,n){var r=t.storedValue;switch(n.op){case"add":case"replace":r.set(e,n.value);break;case"remove":r.delete(e)}},n.prototype.applySnapshot=function(t,e){rt(this,e);var n=t.storedValue,r={};if(Array.from(n.keys()).forEach(function(t){r[t]=!1}),e)for(var i in e)n.set(i,e[i]),r[""+i]=!0;Object.keys(r).forEach(function(t){!1===r[t]&&n.delete(t)})},n.prototype.getChildType=function(){return this._subType},n.prototype.isValidSnapshot=function(t,e){var n=this;return Et(t)?nt(Object.keys(t).map(function(r){return n._subType.validate(t[r],X(e,r,n._subType))})):et(e,t,"Value is not a plain object")},n.prototype.getDefaultSnapshot=function(){return _t},n.prototype.removeChild=function(t,e){t.storedValue.delete(e)},p([e.action],n.prototype,"applySnapshot",null),n}(j);var qt=function(t){function n(e,n){var r=t.call(this,e)||this;return r._subType=n,r.flags=A.Array,r}return s(n,t),n.prototype.instantiate=function(t,e,n,r){return ut(this,t,e,n,r)},n.prototype.initializeChildNodes=function(t,e){void 0===e&&(e=[]);var n=t.type._subType,r={};return e.forEach(function(e,i){var o=""+i;r[o]=n.instantiate(t,o,void 0,e)}),r},n.prototype.createNewInstance=function(t){return e.observable.array(gt(t),Pt)},n.prototype.finalizeNewInstance=function(t,n){e._getAdministration(n).dehancer=t.unbox,e.intercept(n,this.willChange),e.observe(n,this.didChange)},n.prototype.describe=function(){return this._subType.describe()+"[]"},n.prototype.getChildren=function(t){return t.storedValue.slice()},n.prototype.getChildNode=function(t,e){var n=Number(e);if(n<t.storedValue.length)return t.storedValue[n];throw St("Not a child: "+e)},n.prototype.willChange=function(t){var e=ht(t.object);e.assertWritable({subpath:""+t.index});var n=e.type._subType,r=e.getChildren();switch(t.type){case"update":if(t.newValue===t.object[t.index])return null;var i=Qt(e,n,[r[t.index]],[t.newValue],[t.index]);if(!i)return null;t.newValue=i[0];break;case"splice":var o=t.index,a=t.removedCount,s=t.added,u=Qt(e,n,r.slice(o,o+a),s,s.map(function(t,e){return o+e}));if(!u)return null;t.added=u;for(var p=o+a;p<r.length;p++)r[p].setParent(e,""+(p+s.length-a))}return t},n.prototype.getSnapshot=function(t){return t.getChildren().map(function(t){return t.snapshot})},n.prototype.processInitialSnapshot=function(t){var e=[];return Object.keys(t).forEach(function(n){e.push(t[n].getSnapshot())}),e},n.prototype.didChange=function(t){var e=ht(t.object);switch(t.type){case"update":return void e.emitPatch({op:"replace",path:""+t.index,value:t.newValue.snapshot,oldValue:t.oldValue?t.oldValue.snapshot:void 0},e);case"splice":for(var n=t.removedCount-1;n>=0;n--)e.emitPatch({op:"remove",path:""+(t.index+n),oldValue:t.removed[n].snapshot},e);for(n=0;n<t.addedCount;n++)e.emitPatch({op:"add",path:""+(t.index+n),value:e.getChildNode(""+(t.index+n)).snapshot,oldValue:void 0},e);return}},n.prototype.applyPatchLocally=function(t,e,n){var r=t.storedValue,i="-"===e?r.length:Number(e);switch(n.op){case"replace":r[i]=n.value;break;case"add":r.splice(i,0,n.value);break;case"remove":r.splice(i,1)}},n.prototype.applySnapshot=function(t,e){rt(this,e),t.storedValue.replace(e)},n.prototype.getChildType=function(){return this._subType},n.prototype.isValidSnapshot=function(t,e){var n=this;return Tt(t)?nt(t.map(function(t,r){return n._subType.validate(t,X(e,""+r,n._subType))})):et(e,t,"Value is not an array")},n.prototype.getDefaultSnapshot=function(){return wt},n.prototype.removeChild=function(t,e){t.storedValue.splice(Number(e),1)},p([e.action],n.prototype,"applySnapshot",null),n}(j);function Qt(t,e,n,r,i){for(var o,a=!0,s=0;;s++){var u=s<=r.length-1,p=n[s],c=u?r[s]:void 0,h=""+i[s];if(((o=c)instanceof T||o instanceof V)&&(c=c.storedValue),!p&&!u)break;if(u)if(p)if(te(p,c))n[s]=Xt(e,t,h,c,p);else{for(var f=void 0,l=s;l<n.length;l++)if(te(n[l],c)){f=n.splice(l,1)[0];break}a=!1;d=Xt(e,t,h,c,f);n.splice(s,0,d)}else{if(ct(c)&&ht(c).parent===t)throw St("Cannot add an object to a state tree if it is already part of the same or another state tree. Tried to assign an object to '"+t.path+"/"+h+"', but it lives already at '"+ht(c).path+"'");a=!1;var d=Xt(e,t,h,c);n.splice(s,0,d)}else a=!1,n.splice(s,1),p instanceof V&&p.createObservableInstanceIfNeeded(),p.die(),s--}return a?null:n}function Xt(t,e,n,r,i){rt(t,r);var o=function(){if(ct(r)){var o=ht(r);if(o.assertAlive(_t),null!==o.parent&&o.parent===e)return o.setParent(e,n),o}return i?t.reconcile(i,r,e,n):t.instantiate(e,n,void 0,r)}();return i&&i!==o&&(i instanceof V&&i.createObservableInstanceIfNeeded(),i.die()),o}function te(t,e){if(!t.isAlive)return!1;if(ct(e)){var n=ht(e);return n.isAlive&&n===t}return t.snapshot===e||t instanceof V&&null!==t.identifier&&t.identifierAttribute&&Et(e)&&t.identifier===Le(e[t.identifierAttribute])&&t.type.is(e)}function ee(){return ht(this).toString()}var ne={name:"AnonymousModel",properties:{},initializers:wt};function re(t){return Object.keys(t).reduce(function(t,e){var r,i,o;if(e in n)throw St("Hook '"+e+"' was defined as property. Hooks should be defined as part of the actions");var a=Object.getOwnPropertyDescriptor(t,e);if("get"in a)throw St("Getters are not supported as properties. Please use views instead");var s=a.value;if(null==s)throw St("The default value of an attribute cannot be null or undefined as the type cannot be inferred. Did you mean `types.maybe(someType)`?");if(Ot(s))return Object.assign({},t,((r={})[e]=Pe(function(t){switch(typeof t){case"string":return se;case"number":return ue;case"boolean":return ce;case"object":if(t instanceof Date)return de}throw St("Cannot determine primitive type from value "+t)}(s),s),r));if(s instanceof Kt)return Object.assign({},t,((i={})[e]=Pe(s,{}),i));if(s instanceof qt)return Object.assign({},t,((o={})[e]=Pe(s,[]),o));if(x(s))return t;throw St("Invalid type definition for property '"+e+"', cannot infer a type from a value like '"+s+"' ("+typeof s+")")},t)}var ie=function(t){function r(e){var n=t.call(this,e.name||ne.name)||this;n.flags=A.Object,n.named=function(t){return n.cloneAndEnhance({name:t})},n.props=function(t){return n.cloneAndEnhance({properties:t})},n.preProcessSnapshot=function(t){var e=n.preProcessor;return e?n.cloneAndEnhance({preProcessor:function(n){return e(t(n))}}):n.cloneAndEnhance({preProcessor:t})},n.postProcessSnapshot=function(t){var e=n.postProcessor;return e?n.cloneAndEnhance({postProcessor:function(n){return t(e(n))}}):n.cloneAndEnhance({postProcessor:t})};var r=e.name||ne.name;if(!/^\w[\w\d_]*$/.test(r))throw St("Typename should be a valid identifier: "+r);return Object.assign(n,ne,e),n.properties=re(n.properties),Nt(n.properties),n.propertyNames=Object.keys(n.properties),n.identifierAttribute=n._getIdentifierAttribute(),n}return s(r,t),r.prototype._getIdentifierAttribute=function(){var t=void 0;return this.forAllProps(function(e,n){if(n.flags&A.Identifier){if(t)throw St("Cannot define property '"+e+"' as object identifier, property '"+t+"' is already defined as identifier property");t=e}}),t},r.prototype.cloneAndEnhance=function(t){return new r({name:t.name||this.name,properties:Object.assign({},this.properties,t.properties),initializers:this.initializers.concat(t.initializers||[]),preProcessor:t.preProcessor||this.preProcessor,postProcessor:t.postProcessor||this.postProcessor})},r.prototype.actions=function(t){var e=this;return this.cloneAndEnhance({initializers:[function(n){return e.instantiateActions(n,t(n)),n}]})},r.prototype.instantiateActions=function(t,e){if(!Et(e))throw St("actions initializer should return a plain object containing actions");Object.keys(e).forEach(function(r){if("preProcessSnapshot"===r)throw St("Cannot define action 'preProcessSnapshot', it should be defined using 'type.preProcessSnapshot(fn)' instead");if("postProcessSnapshot"===r)throw St("Cannot define action 'postProcessSnapshot', it should be defined using 'type.postProcessSnapshot(fn)' instead");var i=e[r],o=t[r];if(r in n&&o){var a=i;i=function(){o.apply(null,arguments),a.apply(null,arguments)}}var s=i.$mst_middleware,u=i.bind(e);u.$mst_middleware=s;var p=G(t,r,u);e[r]=p,jt(t,r,p)})},r.prototype.volatile=function(t){var e=this;return this.cloneAndEnhance({initializers:[function(n){return e.instantiateVolatileState(n,t(n)),n}]})},r.prototype.instantiateVolatileState=function(t,n){if(!Et(n))throw St("volatile state initializer should return a plain object containing state");e.set(t,n)},r.prototype.extend=function(t){var e=this;return this.cloneAndEnhance({initializers:[function(n){var r=t(n),i=r.actions,o=r.views,a=r.state,s=function(t,e){var n={};for(var r in t)Object.prototype.hasOwnProperty.call(t,r)&&e.indexOf(r)<0&&(n[r]=t[r]);if(null!=t&&"function"==typeof Object.getOwnPropertySymbols){var i=0;for(r=Object.getOwnPropertySymbols(t);i<r.length;i++)e.indexOf(r[i])<0&&Object.prototype.propertyIsEnumerable.call(t,r[i])&&(n[r[i]]=t[r[i]])}return n}(r,["actions","views","state"]);for(var u in s)throw St("The `extend` function should return an object with a subset of the fields 'actions', 'views' and 'state'. Found invalid key '"+u+"'");return a&&e.instantiateVolatileState(n,a),o&&e.instantiateViews(n,o),i&&e.instantiateActions(n,i),n}]})},r.prototype.views=function(t){var e=this;return this.cloneAndEnhance({initializers:[function(n){return e.instantiateViews(n,t(n)),n}]})},r.prototype.instantiateViews=function(t,n){if(!Et(n))throw St("views initializer should return a plain object containing views");Object.keys(n).forEach(function(r){var i=Object.getOwnPropertyDescriptor(n,r);if("get"in i)if(e.isComputedProp(t,r)){var o=e._getAdministration(t,r);o.derivation=i.get,o.scope=t,i.set&&(o.setter=e.action(o.name+"-setter",i.set))}else e.computed(t,r,i,!0);else{if("function"!=typeof i.value)throw St("A view member should either be a function or getter based property");jt(t,r,i.value)}})},r.prototype.instantiate=function(t,e,n,r){return ut(this,t,e,n,ct(r)