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- var toArray = require("./toArray.js");
- var toPropertyKey = require("./toPropertyKey.js");
- function _decorate(decorators, factory, superClass, mixins) {
- var api = _getDecoratorsApi();
- if (mixins) {
- for (var i = 0; i < mixins.length; i++) {
- api = mixins[i](api);
- }
- }
- var r = factory(function initialize(O) {
- api.initializeInstanceElements(O, decorated.elements);
- }, superClass);
- var decorated = api.decorateClass(_coalesceClassElements(r.d.map(_createElementDescriptor)), decorators);
- api.initializeClassElements(r.F, decorated.elements);
- return api.runClassFinishers(r.F, decorated.finishers);
- }
- function _getDecoratorsApi() {
- _getDecoratorsApi = function _getDecoratorsApi() {
- return api;
- };
- var api = {
- elementsDefinitionOrder: [["method"], ["field"]],
- initializeInstanceElements: function initializeInstanceElements(O, elements) {
- ["method", "field"].forEach(function (kind) {
- elements.forEach(function (element) {
- if (element.kind === kind && element.placement === "own") {
- this.defineClassElement(O, element);
- }
- }, this);
- }, this);
- },
- initializeClassElements: function initializeClassElements(F, elements) {
- var proto = F.prototype;
- ["method", "field"].forEach(function (kind) {
- elements.forEach(function (element) {
- var placement = element.placement;
- if (element.kind === kind && (placement === "static" || placement === "prototype")) {
- var receiver = placement === "static" ? F : proto;
- this.defineClassElement(receiver, element);
- }
- }, this);
- }, this);
- },
- defineClassElement: function defineClassElement(receiver, element) {
- var descriptor = element.descriptor;
- if (element.kind === "field") {
- var initializer = element.initializer;
- descriptor = {
- enumerable: descriptor.enumerable,
- writable: descriptor.writable,
- configurable: descriptor.configurable,
- value: initializer === void 0 ? void 0 : initializer.call(receiver)
- };
- }
- Object.defineProperty(receiver, element.key, descriptor);
- },
- decorateClass: function decorateClass(elements, decorators) {
- var newElements = [];
- var finishers = [];
- var placements = {
- "static": [],
- prototype: [],
- own: []
- };
- elements.forEach(function (element) {
- this.addElementPlacement(element, placements);
- }, this);
- elements.forEach(function (element) {
- if (!_hasDecorators(element)) return newElements.push(element);
- var elementFinishersExtras = this.decorateElement(element, placements);
- newElements.push(elementFinishersExtras.element);
- newElements.push.apply(newElements, elementFinishersExtras.extras);
- finishers.push.apply(finishers, elementFinishersExtras.finishers);
- }, this);
- if (!decorators) {
- return {
- elements: newElements,
- finishers: finishers
- };
- }
- var result = this.decorateConstructor(newElements, decorators);
- finishers.push.apply(finishers, result.finishers);
- result.finishers = finishers;
- return result;
- },
- addElementPlacement: function addElementPlacement(element, placements, silent) {
- var keys = placements[element.placement];
- if (!silent && keys.indexOf(element.key) !== -1) {
- throw new TypeError("Duplicated element (" + element.key + ")");
- }
- keys.push(element.key);
- },
- decorateElement: function decorateElement(element, placements) {
- var extras = [];
- var finishers = [];
- for (var decorators = element.decorators, i = decorators.length - 1; i >= 0; i--) {
- var keys = placements[element.placement];
- keys.splice(keys.indexOf(element.key), 1);
- var elementObject = this.fromElementDescriptor(element);
- var elementFinisherExtras = this.toElementFinisherExtras((0, decorators[i])(elementObject) || elementObject);
- element = elementFinisherExtras.element;
- this.addElementPlacement(element, placements);
- if (elementFinisherExtras.finisher) {
- finishers.push(elementFinisherExtras.finisher);
- }
- var newExtras = elementFinisherExtras.extras;
- if (newExtras) {
- for (var j = 0; j < newExtras.length; j++) {
- this.addElementPlacement(newExtras[j], placements);
- }
- extras.push.apply(extras, newExtras);
- }
- }
- return {
- element: element,
- finishers: finishers,
- extras: extras
- };
- },
- decorateConstructor: function decorateConstructor(elements, decorators) {
- var finishers = [];
- for (var i = decorators.length - 1; i >= 0; i--) {
- var obj = this.fromClassDescriptor(elements);
- var elementsAndFinisher = this.toClassDescriptor((0, decorators[i])(obj) || obj);
- if (elementsAndFinisher.finisher !== undefined) {
- finishers.push(elementsAndFinisher.finisher);
- }
- if (elementsAndFinisher.elements !== undefined) {
- elements = elementsAndFinisher.elements;
- for (var j = 0; j < elements.length - 1; j++) {
- for (var k = j + 1; k < elements.length; k++) {
- if (elements[j].key === elements[k].key && elements[j].placement === elements[k].placement) {
- throw new TypeError("Duplicated element (" + elements[j].key + ")");
- }
- }
- }
- }
- }
- return {
- elements: elements,
- finishers: finishers
- };
- },
- fromElementDescriptor: function fromElementDescriptor(element) {
- var obj = {
- kind: element.kind,
- key: element.key,
- placement: element.placement,
- descriptor: element.descriptor
- };
- var desc = {
- value: "Descriptor",
- configurable: true
- };
- Object.defineProperty(obj, Symbol.toStringTag, desc);
- if (element.kind === "field") obj.initializer = element.initializer;
- return obj;
- },
- toElementDescriptors: function toElementDescriptors(elementObjects) {
- if (elementObjects === undefined) return;
- return toArray(elementObjects).map(function (elementObject) {
- var element = this.toElementDescriptor(elementObject);
- this.disallowProperty(elementObject, "finisher", "An element descriptor");
- this.disallowProperty(elementObject, "extras", "An element descriptor");
- return element;
- }, this);
- },
- toElementDescriptor: function toElementDescriptor(elementObject) {
- var kind = String(elementObject.kind);
- if (kind !== "method" && kind !== "field") {
- throw new TypeError('An element descriptor\'s .kind property must be either "method" or' + ' "field", but a decorator created an element descriptor with' + ' .kind "' + kind + '"');
- }
- var key = toPropertyKey(elementObject.key);
- var placement = String(elementObject.placement);
- if (placement !== "static" && placement !== "prototype" && placement !== "own") {
- throw new TypeError('An element descriptor\'s .placement property must be one of "static",' + ' "prototype" or "own", but a decorator created an element descriptor' + ' with .placement "' + placement + '"');
- }
- var descriptor = elementObject.descriptor;
- this.disallowProperty(elementObject, "elements", "An element descriptor");
- var element = {
- kind: kind,
- key: key,
- placement: placement,
- descriptor: Object.assign({}, descriptor)
- };
- if (kind !== "field") {
- this.disallowProperty(elementObject, "initializer", "A method descriptor");
- } else {
- this.disallowProperty(descriptor, "get", "The property descriptor of a field descriptor");
- this.disallowProperty(descriptor, "set", "The property descriptor of a field descriptor");
- this.disallowProperty(descriptor, "value", "The property descriptor of a field descriptor");
- element.initializer = elementObject.initializer;
- }
- return element;
- },
- toElementFinisherExtras: function toElementFinisherExtras(elementObject) {
- var element = this.toElementDescriptor(elementObject);
- var finisher = _optionalCallableProperty(elementObject, "finisher");
- var extras = this.toElementDescriptors(elementObject.extras);
- return {
- element: element,
- finisher: finisher,
- extras: extras
- };
- },
- fromClassDescriptor: function fromClassDescriptor(elements) {
- var obj = {
- kind: "class",
- elements: elements.map(this.fromElementDescriptor, this)
- };
- var desc = {
- value: "Descriptor",
- configurable: true
- };
- Object.defineProperty(obj, Symbol.toStringTag, desc);
- return obj;
- },
- toClassDescriptor: function toClassDescriptor(obj) {
- var kind = String(obj.kind);
- if (kind !== "class") {
- throw new TypeError('A class descriptor\'s .kind property must be "class", but a decorator' + ' created a class descriptor with .kind "' + kind + '"');
- }
- this.disallowProperty(obj, "key", "A class descriptor");
- this.disallowProperty(obj, "placement", "A class descriptor");
- this.disallowProperty(obj, "descriptor", "A class descriptor");
- this.disallowProperty(obj, "initializer", "A class descriptor");
- this.disallowProperty(obj, "extras", "A class descriptor");
- var finisher = _optionalCallableProperty(obj, "finisher");
- var elements = this.toElementDescriptors(obj.elements);
- return {
- elements: elements,
- finisher: finisher
- };
- },
- runClassFinishers: function runClassFinishers(constructor, finishers) {
- for (var i = 0; i < finishers.length; i++) {
- var newConstructor = (0, finishers[i])(constructor);
- if (newConstructor !== undefined) {
- if (typeof newConstructor !== "function") {
- throw new TypeError("Finishers must return a constructor.");
- }
- constructor = newConstructor;
- }
- }
- return constructor;
- },
- disallowProperty: function disallowProperty(obj, name, objectType) {
- if (obj[name] !== undefined) {
- throw new TypeError(objectType + " can't have a ." + name + " property.");
- }
- }
- };
- return api;
- }
- function _createElementDescriptor(def) {
- var key = toPropertyKey(def.key);
- var descriptor;
- if (def.kind === "method") {
- descriptor = {
- value: def.value,
- writable: true,
- configurable: true,
- enumerable: false
- };
- } else if (def.kind === "get") {
- descriptor = {
- get: def.value,
- configurable: true,
- enumerable: false
- };
- } else if (def.kind === "set") {
- descriptor = {
- set: def.value,
- configurable: true,
- enumerable: false
- };
- } else if (def.kind === "field") {
- descriptor = {
- configurable: true,
- writable: true,
- enumerable: true
- };
- }
- var element = {
- kind: def.kind === "field" ? "field" : "method",
- key: key,
- placement: def["static"] ? "static" : def.kind === "field" ? "own" : "prototype",
- descriptor: descriptor
- };
- if (def.decorators) element.decorators = def.decorators;
- if (def.kind === "field") element.initializer = def.value;
- return element;
- }
- function _coalesceGetterSetter(element, other) {
- if (element.descriptor.get !== undefined) {
- other.descriptor.get = element.descriptor.get;
- } else {
- other.descriptor.set = element.descriptor.set;
- }
- }
- function _coalesceClassElements(elements) {
- var newElements = [];
- var isSameElement = function isSameElement(other) {
- return other.kind === "method" && other.key === element.key && other.placement === element.placement;
- };
- for (var i = 0; i < elements.length; i++) {
- var element = elements[i];
- var other;
- if (element.kind === "method" && (other = newElements.find(isSameElement))) {
- if (_isDataDescriptor(element.descriptor) || _isDataDescriptor(other.descriptor)) {
- if (_hasDecorators(element) || _hasDecorators(other)) {
- throw new ReferenceError("Duplicated methods (" + element.key + ") can't be decorated.");
- }
- other.descriptor = element.descriptor;
- } else {
- if (_hasDecorators(element)) {
- if (_hasDecorators(other)) {
- throw new ReferenceError("Decorators can't be placed on different accessors with for " + "the same property (" + element.key + ").");
- }
- other.decorators = element.decorators;
- }
- _coalesceGetterSetter(element, other);
- }
- } else {
- newElements.push(element);
- }
- }
- return newElements;
- }
- function _hasDecorators(element) {
- return element.decorators && element.decorators.length;
- }
- function _isDataDescriptor(desc) {
- return desc !== undefined && !(desc.value === undefined && desc.writable === undefined);
- }
- function _optionalCallableProperty(obj, name) {
- var value = obj[name];
- if (value !== undefined && typeof value !== "function") {
- throw new TypeError("Expected '" + name + "' to be a function");
- }
- return value;
- }
- module.exports = _decorate, module.exports.__esModule = true, module.exports["default"] = module.exports;
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