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Viewing file:     Storage.js (11.63 KB)      -rw-r--r--

        "use strict";

        const conversions = require("webidl-conversions");
        const utils = require("./utils.js");
        
      const implSymbol = utils.implSymbol;
const ctorRegistrySymbol = utils.ctorRegistrySymbol;

      
      const interfaceName = "Storage";
    
      exports.is = function is(obj) {
        return utils.isObject(obj) && utils.hasOwn(obj, implSymbol) && obj[implSymbol] instanceof Impl.implementation;
      };
      exports.isImpl = function isImpl(obj) {
        return utils.isObject(obj) && obj instanceof Impl.implementation;
      };
      exports.convert = function convert(obj, { context = "The provided value" } = {}) {
        if (exports.is(obj)) {
          return utils.implForWrapper(obj);
        }
        throw new TypeError(`${context} is not of type 'Storage'.`);
      };
    
      exports.create = function create(globalObject, constructorArgs, privateData) {
        if (globalObject[ctorRegistrySymbol] === undefined) {
          throw new Error('Internal error: invalid global object');
        }

        const ctor = globalObject[ctorRegistrySymbol]["Storage"];
        if (ctor === undefined) {
          throw new Error('Internal error: constructor Storage is not installed on the passed global object');
        }

        let obj = Object.create(ctor.prototype);
        obj = exports.setup(obj, globalObject, constructorArgs, privateData);
        return obj;
      };
      exports.createImpl = function createImpl(globalObject, constructorArgs, privateData) {
        const obj = exports.create(globalObject, constructorArgs, privateData);
        return utils.implForWrapper(obj);
      };
      exports._internalSetup = function _internalSetup(obj, globalObject) {
    
      };
      exports.setup = function setup(obj, globalObject, constructorArgs = [], privateData = {}) {
        privateData.wrapper = obj;

        exports._internalSetup(obj, globalObject);
        Object.defineProperty(obj, implSymbol, {
          value: new Impl.implementation(globalObject, constructorArgs, privateData),
          configurable: true
        });
    
        obj = new Proxy(obj, proxyHandler);
        
        obj[implSymbol][utils.wrapperSymbol] = obj;
        if (Impl.init) {
          Impl.init(obj[implSymbol], privateData);
        }
        return obj;
      };
    
      exports.install = function install(globalObject) {
    class Storage {
        constructor() {
        throw new TypeError("Illegal constructor");
      }
      
        key(index) {
        const esValue = this !== null && this !== undefined ? this : globalObject;
        if (!exports.is(esValue)) {
          throw new TypeError("Illegal invocation");
        }
      
        if (arguments.length < 1) {
          throw new TypeError("Failed to execute 'key' on 'Storage': 1 argument required, but only " + arguments.length +
                              " present.");
        }
      const args = [];{ let curArg = arguments[0];
        curArg = conversions["unsigned long"](curArg, { context: "Failed to execute 'key' on 'Storage': parameter 1", });
      args.push(curArg);}
        return esValue[implSymbol].key(...args);
      }
      
        getItem(key) {
        const esValue = this !== null && this !== undefined ? this : globalObject;
        if (!exports.is(esValue)) {
          throw new TypeError("Illegal invocation");
        }
      
        if (arguments.length < 1) {
          throw new TypeError("Failed to execute 'getItem' on 'Storage': 1 argument required, but only " + arguments.length +
                              " present.");
        }
      const args = [];{ let curArg = arguments[0];
        curArg = conversions["DOMString"](curArg, { context: "Failed to execute 'getItem' on 'Storage': parameter 1", });
      args.push(curArg);}
        return esValue[implSymbol].getItem(...args);
      }
      
        setItem(key, value) {
        const esValue = this !== null && this !== undefined ? this : globalObject;
        if (!exports.is(esValue)) {
          throw new TypeError("Illegal invocation");
        }
      
        if (arguments.length < 2) {
          throw new TypeError("Failed to execute 'setItem' on 'Storage': 2 arguments required, but only " + arguments.length +
                              " present.");
        }
      const args = [];{ let curArg = arguments[0];
        curArg = conversions["DOMString"](curArg, { context: "Failed to execute 'setItem' on 'Storage': parameter 1", });
      args.push(curArg);}{ let curArg = arguments[1];
        curArg = conversions["DOMString"](curArg, { context: "Failed to execute 'setItem' on 'Storage': parameter 2", });
      args.push(curArg);}
        return esValue[implSymbol].setItem(...args);
      }
      
        removeItem(key) {
        const esValue = this !== null && this !== undefined ? this : globalObject;
        if (!exports.is(esValue)) {
          throw new TypeError("Illegal invocation");
        }
      
        if (arguments.length < 1) {
          throw new TypeError("Failed to execute 'removeItem' on 'Storage': 1 argument required, but only " + arguments.length +
                              " present.");
        }
      const args = [];{ let curArg = arguments[0];
        curArg = conversions["DOMString"](curArg, { context: "Failed to execute 'removeItem' on 'Storage': parameter 1", });
      args.push(curArg);}
        return esValue[implSymbol].removeItem(...args);
      }
      
        clear() {
        const esValue = this !== null && this !== undefined ? this : globalObject;
        if (!exports.is(esValue)) {
          throw new TypeError("Illegal invocation");
        }
      
        return esValue[implSymbol].clear();
      }
      
        get length() {
      const esValue = this !== null && this !== undefined ? this : globalObject;
      
      if (!exports.is(esValue)) {
        throw new TypeError("Illegal invocation");
      }
    
      return esValue[implSymbol]["length"];
    }
      }Object.defineProperties(Storage.prototype, { key: { enumerable: true }, getItem: { enumerable: true }, setItem: { enumerable: true }, removeItem: { enumerable: true }, clear: { enumerable: true }, length: { enumerable: true }, [Symbol.toStringTag]: { value: "Storage", configurable: true } });
        if (globalObject[ctorRegistrySymbol] === undefined) {
          globalObject[ctorRegistrySymbol] = Object.create(null);
        }
        globalObject[ctorRegistrySymbol][interfaceName] = Storage;

        Object.defineProperty(globalObject, interfaceName, {
          configurable: true,
          writable: true,
          value: Storage
        });
      };
    
        const proxyHandler = {
      
        get(target, P, receiver) {
          if (typeof P === "symbol") {
            return Reflect.get(target, P, receiver);
          }
          const desc = this.getOwnPropertyDescriptor(target, P);
          if (desc === undefined) {
            const parent = Object.getPrototypeOf(target);
            if (parent === null) {
              return undefined;
            }
            return Reflect.get(target, P, receiver);
          }
          if (!desc.get && !desc.set) {
            return desc.value;
          }
          const getter = desc.get;
          if (getter === undefined) {
            return undefined;
          }
          return Reflect.apply(getter, receiver, []);
        },
    
        has(target, P) {
          if (typeof P === "symbol") {
            return Reflect.has(target, P);
          }
          const desc = this.getOwnPropertyDescriptor(target, P);
          if (desc !== undefined) {
            return true;
          }
          const parent = Object.getPrototypeOf(target);
          if (parent !== null) {
            return Reflect.has(parent, P);
          }
          return false;
        },
    
        ownKeys(target) {
          const keys = new Set();
    
          for (const key of target[implSymbol][utils.supportedPropertyNames]) {
            if (!(key in target)) {
              keys.add(`${key}`);
            }
          }
      
          for (const key of Reflect.ownKeys(target)) {
            keys.add(key);
          }
          return [...keys];
        },
    
        getOwnPropertyDescriptor(target, P) {
          if (typeof P === "symbol") {
            return Reflect.getOwnPropertyDescriptor(target, P);
          }
          let ignoreNamedProps = false;
    
          const namedValue = target[implSymbol].getItem(P);
        
          if (namedValue !== null && !(P in target) && !ignoreNamedProps) {
            
            return {
              writable: true,
              enumerable: true,
              configurable: true,
              value: utils.tryWrapperForImpl(namedValue)
            };
          }
      
          return Reflect.getOwnPropertyDescriptor(target, P);
        },
    
        set(target, P, V, receiver) {
          if (typeof P === "symbol") {
            return Reflect.set(target, P, V, receiver);
          }
          if (target === receiver) {
    
            if (typeof P === "string" && !utils.isArrayIndexPropName(P)) {
              
        let namedValue = V;
        
        namedValue = conversions["DOMString"](namedValue, { context: "Failed to set the '" + P + "' property on 'Storage': The provided value", });
      
      
          target[implSymbol].setItem(P, namedValue);
        
              return true;
            }
        
          }
          let ownDesc;
    
          if (ownDesc === undefined) {
            ownDesc = Reflect.getOwnPropertyDescriptor(target, P);
          }
          if (ownDesc === undefined) {
            const parent = Reflect.getPrototypeOf(target);
            if (parent !== null) {
              return Reflect.set(parent, P, V, receiver);
            }
            ownDesc = { writable: true, enumerable: true, configurable: true, value: undefined };
          }
          if (!ownDesc.writable) {
            return false;
          }
          if (!utils.isObject(receiver)) {
            return false;
          }
          const existingDesc = Reflect.getOwnPropertyDescriptor(receiver, P);
          let valueDesc;
          if (existingDesc !== undefined) {
            if (existingDesc.get || existingDesc.set) {
              return false;
            }
            if (!existingDesc.writable) {
              return false;
            }
            valueDesc = { value: V };
          } else {
            valueDesc = { writable: true, enumerable: true, configurable: true, value: V };
          }
          return Reflect.defineProperty(receiver, P, valueDesc);
        },
    
        defineProperty(target, P, desc) {
          if (typeof P === "symbol") {
            return Reflect.defineProperty(target, P, desc);
          }
    if (!utils.hasOwn(target, P)) {
          if (desc.get || desc.set) {
            return false;
          }
          
        let namedValue = desc.value;
        
        namedValue = conversions["DOMString"](namedValue, { context: "Failed to set the '" + P + "' property on 'Storage': The provided value", });
      
      
          target[implSymbol].setItem(P, namedValue);
        
          return true;
        }
          return Reflect.defineProperty(target, P, desc);
      
        },
    
        deleteProperty(target, P) {
          if (typeof P === "symbol") {
            return Reflect.deleteProperty(target, P);
          }
    
          if (target[implSymbol].getItem(P) !== null && !(P in target)) {
      
            target[implSymbol].removeItem(P);
            return true;
          
          }
      
          return Reflect.deleteProperty(target, P);
        },
    
        preventExtensions() {
          return false;
        }
    
      };
    
    
        const Impl = require("../webstorage/Storage-impl.js");