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					343 lines
				
				13 KiB
			
		
		
			
		
	
	
					343 lines
				
				13 KiB
			| 
											3 years ago
										 | 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; |