libs/src/node-localstorage/LocalStorage.js - Code Metrics - dimaslanjaka/universal-framework - Measure and Improve Code Quality continuously with Scrutinizer

libs/src/node-localstorage/LocalStorage.js F
last analyzed 2021-05-12 13:02 UTC

↳ Parent: Project

Complexity

Total Complexity	73
Complexity/F	2.15

Size

Lines of Code	360
Function Count	34

Duplication

Duplicated Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	254
dl	0
loc	360
rs	2.56
c	0
b	0
f	0
wmc	73
mnd	39
bc	39
fnc	34
bpm	1.147
cpm	2.1469
noi	10

6 Functions

Rating	Name	Size	Complexity
F	LocalStorage.js ➔ JSONStorage	3	34
A	LocalStorage.js ➔ ctor	1	5
A	LocalStorage.js ➔ StorageEvent	7	4
A	LocalStorage.js ➔ MetaKey	7	3
C	LocalStorage.js ➔ QUOTA_EXCEEDED_ERR	8	11
F	LocalStorage.js ➔ LocalStorage	46	14

How to fix Complexity

// Generated by CoffeeScript 1.12.7
(function() {
  var JSONStorage, KEY_FOR_EMPTY_STRING, LocalStorage, MetaKey, QUOTA_EXCEEDED_ERR, StorageEvent, _emptyDirectory, _escapeKey, _rm, createMap, dirname, events, fs, path, writeSync,
    extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
var someObject;
for (var key in someObject) {
    if ( ! someObject.hasOwnProperty(key)) {
        continue; // Skip keys from the prototype.
    }

    doSomethingWith(key);
}
    hasProp = {}.hasOwnProperty;

  path = require('path');

  dirname = path.dirname;

  fs = require('fs');

  events = require('events');

  writeSync = require('write-file-atomic').sync;

  KEY_FOR_EMPTY_STRING = '---.EMPTY_STRING.---';

  _emptyDirectory = function(target) {
    var i, len, p, ref, results;
    ref = fs.readdirSync(target);
    results = [];
    for (i = 0, len = ref.length; i < len; i++) {
      p = ref[i];
      results.push(_rm(path.join(target, p)));
    }
    return results;
  };

  _rm = function(target) {
    if (!fs.existsSync(dirname(target))) {
      fs.mkdirSync(dirname(target));
    }
    if (fs.statSync(target).isDirectory()) {
      _emptyDirectory(target);
      return fs.rmdirSync(target);
    } else {
      return fs.unlinkSync(target);
    }
  };

  _escapeKey = function(key) {
    var newKey;
    if (key === '') {
      newKey = KEY_FOR_EMPTY_STRING;
    } else {
      newKey = key.toString();
    }
    return newKey;
  };

  QUOTA_EXCEEDED_ERR = (function(superClass) {
    extend(QUOTA_EXCEEDED_ERR, superClass);

    function QUOTA_EXCEEDED_ERR(message) {
      this.message = message != null ? message : 'Unknown error.';
      QUOTA_EXCEEDED_ERR.__super__.constructor.call(this);
      if (Error.captureStackTrace != null) {
        Error.captureStackTrace(this, this.constructor);
      }
      this.name = this.constructor.name;
    }

    QUOTA_EXCEEDED_ERR.prototype.toString = function() {
      return this.name + ": " + this.message;
    };

    return QUOTA_EXCEEDED_ERR;

  })(Error);

  StorageEvent = (function() {
    function StorageEvent(key1, oldValue1, newValue1, url, storageArea) {
      this.key = key1;
      this.oldValue = oldValue1;
      this.newValue = newValue1;
      this.url = url;
      this.storageArea = storageArea != null ? storageArea : 'localStorage';
    }

    return StorageEvent;

  })();

  MetaKey = (function() {
    function MetaKey(key1, index1) {
      this.key = key1;
      this.index = index1;
      if (!(this instanceof MetaKey)) {
function isBig(a) {
    if (a > 5000) {
        return "yes";
    }
}

console.log(isBig(5001)); //returns yes
console.log(isBig(42)); //returns undefined
        return new MetaKey(this.key, this.index);
      }
    }

    return MetaKey;

  })();

  createMap = function() {
    var Map;
    Map = function() {};

    Map.prototype = Object.create(null);
    return new Map();
  };

  LocalStorage = (function(superClass) {
    var instanceMap;

    extend(LocalStorage, superClass);

    instanceMap = {};

    function LocalStorage(_location, quota) {
      var handler;
      this._location = _location;
      this.quota = quota != null ? quota : 5 * 1024 * 1024;
      LocalStorage.__super__.constructor.call(this);
      if (!(this instanceof LocalStorage)) {
        return new LocalStorage(this._location, this.quota);
      }
      this._location = path.resolve(this._location);
      if (instanceMap[this._location] != null) {
        return instanceMap[this._location];
      }
      this.length = 0;
      this._bytesInUse = 0;
      this._keys = [];
      this._metaKeyMap = createMap();
      this._eventUrl = "pid:" + process.pid;
      this._init();
      this._QUOTA_EXCEEDED_ERR = QUOTA_EXCEEDED_ERR;
      if (typeof Proxy !== "undefined" && Proxy !== null) {
        handler = {
          set: (function(_this) {
            return function(receiver, key, value) {
              if (_this[key] != null) {
                return _this[key] = value;
              } else {
                return _this.setItem(key, value);
              }
            };
          })(this),
          get: (function(_this) {
            return function(receiver, key) {
              if (_this[key] != null) {
                return _this[key];
              } else {
                return _this.getItem(key);
              }
            };
          })(this)
        };
        instanceMap[this._location] = new Proxy(this, handler);
        return instanceMap[this._location];
      }
      instanceMap[this._location] = this;
      return instanceMap[this._location];
    }

    LocalStorage.prototype._init = function() {
      var _MetaKey, _decodedKey, _keys, e, i, index, k, len, stat;
      try {
        stat = fs.statSync(this._location);
        if ((stat != null) && !stat.isDirectory()) {
          throw new Error("A file exists at the location '" + this._location + "' when trying to create/open localStorage");
        }
        this._bytesInUse = 0;
        this.length = 0;
        _keys = fs.readdirSync(this._location);
        for (index = i = 0, len = _keys.length; i < len; index = ++i) {
          k = _keys[index];
          _decodedKey = decodeURIComponent(k);
          this._keys.push(_decodedKey);
          _MetaKey = new MetaKey(k, index);
          this._metaKeyMap[_decodedKey] = _MetaKey;
          stat = this._getStat(k);
          if ((stat != null ? stat.size : void 0) != null) {

            _MetaKey.size = stat.size;
            this._bytesInUse += stat.size;
          }
        }
        this.length = _keys.length;
      } catch (error) {
        e = error;
        if (e.code !== "ENOENT") {
          throw e;
        }
        try {
          fs.mkdirSync(this._location, {
            recursive: true
          });
        } catch (error) {
          e = error;
          if (e.code !== "EEXIST") {
            throw e;
          }
        }
      }
    };

    LocalStorage.prototype.setItem = function(key, value) {
      var encodedKey, evnt, existsBeforeSet, filename, hasListeners, metaKey, oldLength, oldValue, valueString, valueStringLength;
      hasListeners = events.EventEmitter.listenerCount(this, 'storage');
      oldValue = null;
      if (hasListeners) {
        oldValue = this.getItem(key);
      }
      key = _escapeKey(key);
      encodedKey = encodeURIComponent(key);
      filename = path.join(this._location, encodedKey);
      valueString = value.toString();
      valueStringLength = valueString.length;
      metaKey = this._metaKeyMap[key];
      existsBeforeSet = !!metaKey;
      if (existsBeforeSet) {
        oldLength = metaKey.size;
      } else {
        oldLength = 0;
      }
      if (this._bytesInUse - oldLength + valueStringLength > this.quota) {
        throw new QUOTA_EXCEEDED_ERR();
      }
      writeSync(filename, valueString, 'utf8');
      if (!existsBeforeSet) {
        metaKey = new MetaKey(encodedKey, (this._keys.push(key)) - 1);
        metaKey.size = valueStringLength;
        this._metaKeyMap[key] = metaKey;
        this.length += 1;
        this._bytesInUse += valueStringLength;
      }
      if (hasListeners) {
function isBig(a) {
    if (a > 5000) {
        return "yes";
    }
}

console.log(isBig(5001)); //returns yes
console.log(isBig(42)); //returns undefined
        evnt = new StorageEvent(key, oldValue, value, this._eventUrl);
        return this.emit('storage', evnt);
      }
    };

    LocalStorage.prototype.getItem = function(key) {
      var filename, metaKey;
      key = _escapeKey(key);
      metaKey = this._metaKeyMap[key];
      if (!!metaKey) {
        filename = path.join(this._location, metaKey.key);
        if (fs.existsSync(filename)) {
          return fs.readFileSync(filename, 'utf8');
        } else {
          return false;
        }
      } else {
        return null;
      }
    };

    LocalStorage.prototype._getStat = function(key) {
      var filename;
      key = _escapeKey(key);
      filename = path.join(this._location, encodeURIComponent(key));
      try {
        return fs.statSync(filename);
      } catch (error) {
        return null;
      }
    };

    LocalStorage.prototype.removeItem = function(key) {
      var evnt, filename, hasListeners, k, meta, metaKey, oldValue, ref, v;
      key = _escapeKey(key);
      metaKey = this._metaKeyMap[key];
      if (!!metaKey) {
function isBig(a) {
    if (a > 5000) {
        return "yes";
    }
}

console.log(isBig(5001)); //returns yes
console.log(isBig(42)); //returns undefined
        hasListeners = events.EventEmitter.listenerCount(this, 'storage');
        oldValue = null;
        if (hasListeners) {
          oldValue = this.getItem(key);
        }
        delete this._metaKeyMap[key];
        this.length -= 1;
        this._bytesInUse -= metaKey.size;
        filename = path.join(this._location, metaKey.key);
        this._keys.splice(metaKey.index, 1);
        ref = this._metaKeyMap;
        for (k in ref) {
          v = ref[k];

          meta = this._metaKeyMap[k];
          if (meta.index > metaKey.index) {
            meta.index -= 1;
          }
        }
        _rm(filename);
        if (hasListeners) {
function isBig(a) {
    if (a > 5000) {
        return "yes";
    }
}

console.log(isBig(5001)); //returns yes
console.log(isBig(42)); //returns undefined
          evnt = new StorageEvent(key, oldValue, null, this._eventUrl);
          return this.emit('storage', evnt);
        }
      }
    };

    LocalStorage.prototype.key = function(n) {
      var rawKey;
      rawKey = this._keys[n];
      if (rawKey === KEY_FOR_EMPTY_STRING) {
        return '';
      } else {
        return rawKey;
      }
    };

    LocalStorage.prototype.clear = function() {
      var evnt;
      _emptyDirectory(this._location);
      this._metaKeyMap = createMap();
      this._keys = [];
      this.length = 0;
      this._bytesInUse = 0;
      if (events.EventEmitter.listenerCount(this, 'storage')) {
function isBig(a) {
    if (a > 5000) {
        return "yes";
    }
}

console.log(isBig(5001)); //returns yes
console.log(isBig(42)); //returns undefined
        evnt = new StorageEvent(null, null, null, this._eventUrl);
        return this.emit('storage', evnt);
      }
    };

    LocalStorage.prototype._getBytesInUse = function() {
      return this._bytesInUse;
    };

    LocalStorage.prototype._deleteLocation = function() {
      delete instanceMap[this._location];
      _rm(this._location);
      this._metaKeyMap = {};
      this._keys = [];
      this.length = 0;
      return this._bytesInUse = 0;
    };

    return LocalStorage;

  })(events.EventEmitter);

  JSONStorage = (function(superClass) {
    extend(JSONStorage, superClass);

    function JSONStorage() {
      return JSONStorage.__super__.constructor.apply(this, arguments);
    }

    JSONStorage.prototype.setItem = function(key, value) {
      var newValue;
      newValue = JSON.stringify(value);
      return JSONStorage.__super__.setItem.call(this, key, newValue);
    };

    JSONStorage.prototype.getItem = function(key) {
      return JSON.parse(JSONStorage.__super__.getItem.call(this, key));
    };

    return JSONStorage;

  })(LocalStorage);

  exports.LocalStorage = LocalStorage;

  exports.JSONStorage = JSONStorage;

  exports.QUOTA_EXCEEDED_ERR = QUOTA_EXCEEDED_ERR;

}).call(this);


1			// Generated by CoffeeScript 1.12.7
2			(function() {
3			var JSONStorage, KEY_FOR_EMPTY_STRING, LocalStorage, MetaKey, QUOTA_EXCEEDED_ERR, StorageEvent, _emptyDirectory, _escapeKey, _rm, createMap, dirname, events, fs, path, writeSync,
4			extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
			0 ignored issues – show Complexity introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report A for in loop automatically includes the property of any prototype object, consider checking the key using `hasOwnProperty`. When iterating over the keys of an object, this includes not only the keys of the object, but also keys contained in the prototype of that object. It is generally a best practice to check for these keys specifically: var someObject; for (var key in someObject) { if ( ! someObject.hasOwnProperty(key)) { continue; // Skip keys from the prototype. } doSomethingWith(key); } Loading history... Coding Style Best Practice introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report By convention, constructors like `ctor` should be capitalized. Loading history...
5			hasProp = {}.hasOwnProperty;
6
7			path = require('path');
8
9			dirname = path.dirname;
10
11			fs = require('fs');
12
13			events = require('events');
14
15			writeSync = require('write-file-atomic').sync;
16
17			KEY_FOR_EMPTY_STRING = '---.EMPTY_STRING.---';
18
19			_emptyDirectory = function(target) {
20			var i, len, p, ref, results;
21			ref = fs.readdirSync(target);
22			results = [];
23			for (i = 0, len = ref.length; i < len; i++) {
24			p = ref[i];
25			results.push(_rm(path.join(target, p)));
26			}
27			return results;
28			};
29
30			_rm = function(target) {
31			if (!fs.existsSync(dirname(target))) {
32			fs.mkdirSync(dirname(target));
33			}
34			if (fs.statSync(target).isDirectory()) {
35			_emptyDirectory(target);
36			return fs.rmdirSync(target);
37			} else {
38			return fs.unlinkSync(target);
39			}
40			};
41
42			_escapeKey = function(key) {
43			var newKey;
44			if (key === '') {
45			newKey = KEY_FOR_EMPTY_STRING;
46			} else {
47			newKey = key.toString();
48			}
49			return newKey;
50			};
51
52			QUOTA_EXCEEDED_ERR = (function(superClass) {
53			extend(QUOTA_EXCEEDED_ERR, superClass);
54
55			function QUOTA_EXCEEDED_ERR(message) {
56			this.message = message != null ? message : 'Unknown error.';
57			QUOTA_EXCEEDED_ERR.__super__.constructor.call(this);
58			if (Error.captureStackTrace != null) {
59			Error.captureStackTrace(this, this.constructor);
60			}
61			this.name = this.constructor.name;
62			}
63
64			QUOTA_EXCEEDED_ERR.prototype.toString = function() {
65			return this.name + ": " + this.message;
66			};
67
68			return QUOTA_EXCEEDED_ERR;
69
70			})(Error);
71
72			StorageEvent = (function() {
73			function StorageEvent(key1, oldValue1, newValue1, url, storageArea) {
74			this.key = key1;
75			this.oldValue = oldValue1;
76			this.newValue = newValue1;
77			this.url = url;
78			this.storageArea = storageArea != null ? storageArea : 'localStorage';
79			}
80
81			return StorageEvent;
82
83			})();
84
85			MetaKey = (function() {
86			function MetaKey(key1, index1) {
87			this.key = key1;
88			this.index = index1;
89			if (!(this instanceof MetaKey)) {
			0 ignored issues – show Complexity Best Practice introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report There is no return statement if `!(this instanceof MetaKey)` is `false`. Are you sure this is correct? If so, consider adding `return;` explicitly. This check looks for functions where a `return` statement is found in some execution paths, but not in all. Consider this little piece of code function isBig(a) { if (a > 5000) { return "yes"; } } console.log(isBig(5001)); //returns yes console.log(isBig(42)); //returns undefined The function `isBig` will only return a specific value when its parameter is bigger than 5000. In any other case, it will implicitly return `undefined`. This behaviour may not be what you had intended. In any case, you can add a `return undefined` to the other execution path to make the return value explicit. Loading history...
90			return new MetaKey(this.key, this.index);
91			}
92			}
93
94			return MetaKey;
95
96			})();
97
98			createMap = function() {
99			var Map;
100			Map = function() {};
			0 ignored issues – show Comprehensibility introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report You are shadowing the built-in type `Map`. This makes code hard to read, consider using a different name. Loading history...
101			Map.prototype = Object.create(null);
102			return new Map();
103			};
104
105			LocalStorage = (function(superClass) {
106			var instanceMap;
107
108			extend(LocalStorage, superClass);
109
110			instanceMap = {};
111
112			function LocalStorage(_location, quota) {
113			var handler;
114			this._location = _location;
115			this.quota = quota != null ? quota : 5 * 1024 * 1024;
116			LocalStorage.__super__.constructor.call(this);
117			if (!(this instanceof LocalStorage)) {
118			return new LocalStorage(this._location, this.quota);
119			}
120			this._location = path.resolve(this._location);
121			if (instanceMap[this._location] != null) {
122			return instanceMap[this._location];
123			}
124			this.length = 0;
125			this._bytesInUse = 0;
126			this._keys = [];
127			this._metaKeyMap = createMap();
128			this._eventUrl = "pid:" + process.pid;
129			this._init();
130			this._QUOTA_EXCEEDED_ERR = QUOTA_EXCEEDED_ERR;
131			if (typeof Proxy !== "undefined" && Proxy !== null) {
132			handler = {
133			set: (function(_this) {
134			return function(receiver, key, value) {
135			if (_this[key] != null) {
136			return _this[key] = value;
137			} else {
138			return _this.setItem(key, value);
139			}
140			};
141			})(this),
142			get: (function(_this) {
143			return function(receiver, key) {
144			if (_this[key] != null) {
145			return _this[key];
146			} else {
147			return _this.getItem(key);
148			}
149			};
150			})(this)
151			};
152			instanceMap[this._location] = new Proxy(this, handler);
153			return instanceMap[this._location];
154			}
155			instanceMap[this._location] = this;
156			return instanceMap[this._location];
157			}
158
159			LocalStorage.prototype._init = function() {
160			var _MetaKey, _decodedKey, _keys, e, i, index, k, len, stat;
161			try {
162			stat = fs.statSync(this._location);
163			if ((stat != null) && !stat.isDirectory()) {
164			throw new Error("A file exists at the location '" + this._location + "' when trying to create/open localStorage");
165			}
166			this._bytesInUse = 0;
167			this.length = 0;
168			_keys = fs.readdirSync(this._location);
169			for (index = i = 0, len = _keys.length; i < len; index = ++i) {
170			k = _keys[index];
171			_decodedKey = decodeURIComponent(k);
172			this._keys.push(_decodedKey);
173			_MetaKey = new MetaKey(k, index);
174			this._metaKeyMap[_decodedKey] = _MetaKey;
175			stat = this._getStat(k);
176			if ((stat != null ? stat.size : void 0) != null) {
			0 ignored issues – show Coding Style introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report Consider using `undefined` instead of `void(0)`. It is equivalent and more straightforward to read. Loading history...
177			_MetaKey.size = stat.size;
178			this._bytesInUse += stat.size;
179			}
180			}
181			this.length = _keys.length;
182			} catch (error) {
183			e = error;
184			if (e.code !== "ENOENT") {
185			throw e;
186			}
187			try {
188			fs.mkdirSync(this._location, {
189			recursive: true
190			});
191			} catch (error) {
192			e = error;
193			if (e.code !== "EEXIST") {
194			throw e;
195			}
196			}
197			}
198			};
199
200			LocalStorage.prototype.setItem = function(key, value) {
201			var encodedKey, evnt, existsBeforeSet, filename, hasListeners, metaKey, oldLength, oldValue, valueString, valueStringLength;
202			hasListeners = events.EventEmitter.listenerCount(this, 'storage');
203			oldValue = null;
204			if (hasListeners) {
205			oldValue = this.getItem(key);
206			}
207			key = _escapeKey(key);
208			encodedKey = encodeURIComponent(key);
209			filename = path.join(this._location, encodedKey);
210			valueString = value.toString();
211			valueStringLength = valueString.length;
212			metaKey = this._metaKeyMap[key];
213			existsBeforeSet = !!metaKey;
214			if (existsBeforeSet) {
215			oldLength = metaKey.size;
216			} else {
217			oldLength = 0;
218			}
219			if (this._bytesInUse - oldLength + valueStringLength > this.quota) {
220			throw new QUOTA_EXCEEDED_ERR();
221			}
222			writeSync(filename, valueString, 'utf8');
223			if (!existsBeforeSet) {
224			metaKey = new MetaKey(encodedKey, (this._keys.push(key)) - 1);
225			metaKey.size = valueStringLength;
226			this._metaKeyMap[key] = metaKey;
227			this.length += 1;
228			this._bytesInUse += valueStringLength;
229			}
230			if (hasListeners) {
			0 ignored issues – show Complexity Best Practice introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report There is no return statement if `hasListeners` is `false`. Are you sure this is correct? If so, consider adding `return;` explicitly. This check looks for functions where a `return` statement is found in some execution paths, but not in all. Consider this little piece of code function isBig(a) { if (a > 5000) { return "yes"; } } console.log(isBig(5001)); //returns yes console.log(isBig(42)); //returns undefined The function `isBig` will only return a specific value when its parameter is bigger than 5000. In any other case, it will implicitly return `undefined`. This behaviour may not be what you had intended. In any case, you can add a `return undefined` to the other execution path to make the return value explicit. Loading history...
231			evnt = new StorageEvent(key, oldValue, value, this._eventUrl);
232			return this.emit('storage', evnt);
233			}
234			};
235
236			LocalStorage.prototype.getItem = function(key) {
237			var filename, metaKey;
238			key = _escapeKey(key);
239			metaKey = this._metaKeyMap[key];
240			if (!!metaKey) {
241			filename = path.join(this._location, metaKey.key);
242			if (fs.existsSync(filename)) {
243			return fs.readFileSync(filename, 'utf8');
244			} else {
245			return false;
246			}
247			} else {
248			return null;
249			}
250			};
251
252			LocalStorage.prototype._getStat = function(key) {
253			var filename;
254			key = _escapeKey(key);
255			filename = path.join(this._location, encodeURIComponent(key));
256			try {
257			return fs.statSync(filename);
258			} catch (error) {
259			return null;
260			}
261			};
262
263			LocalStorage.prototype.removeItem = function(key) {
264			var evnt, filename, hasListeners, k, meta, metaKey, oldValue, ref, v;
265			key = _escapeKey(key);
266			metaKey = this._metaKeyMap[key];
267			if (!!metaKey) {
			0 ignored issues – show Complexity Best Practice introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report There is no return statement if `!(!metaKey)` is `false`. Are you sure this is correct? If so, consider adding `return;` explicitly. This check looks for functions where a `return` statement is found in some execution paths, but not in all. Consider this little piece of code function isBig(a) { if (a > 5000) { return "yes"; } } console.log(isBig(5001)); //returns yes console.log(isBig(42)); //returns undefined The function `isBig` will only return a specific value when its parameter is bigger than 5000. In any other case, it will implicitly return `undefined`. This behaviour may not be what you had intended. In any case, you can add a `return undefined` to the other execution path to make the return value explicit. Loading history...
268			hasListeners = events.EventEmitter.listenerCount(this, 'storage');
269			oldValue = null;
270			if (hasListeners) {
271			oldValue = this.getItem(key);
272			}
273			delete this._metaKeyMap[key];
274			this.length -= 1;
275			this._bytesInUse -= metaKey.size;
276			filename = path.join(this._location, metaKey.key);
277			this._keys.splice(metaKey.index, 1);
278			ref = this._metaKeyMap;
279			for (k in ref) {
280			v = ref[k];
			0 ignored issues – show Unused Code introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report The variable `v` seems to be never used. Consider removing it. Loading history...
281			meta = this._metaKeyMap[k];
282			if (meta.index > metaKey.index) {
283			meta.index -= 1;
284			}
285			}
286			_rm(filename);
287			if (hasListeners) {
			0 ignored issues – show Complexity Best Practice introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report There is no return statement if `hasListeners` is `false`. Are you sure this is correct? If so, consider adding `return;` explicitly. This check looks for functions where a `return` statement is found in some execution paths, but not in all. Consider this little piece of code function isBig(a) { if (a > 5000) { return "yes"; } } console.log(isBig(5001)); //returns yes console.log(isBig(42)); //returns undefined The function `isBig` will only return a specific value when its parameter is bigger than 5000. In any other case, it will implicitly return `undefined`. This behaviour may not be what you had intended. In any case, you can add a `return undefined` to the other execution path to make the return value explicit. Loading history...
288			evnt = new StorageEvent(key, oldValue, null, this._eventUrl);
289			return this.emit('storage', evnt);
290			}
291			}
292			};
293
294			LocalStorage.prototype.key = function(n) {
295			var rawKey;
296			rawKey = this._keys[n];
297			if (rawKey === KEY_FOR_EMPTY_STRING) {
298			return '';
299			} else {
300			return rawKey;
301			}
302			};
303
304			LocalStorage.prototype.clear = function() {
305			var evnt;
306			_emptyDirectory(this._location);
307			this._metaKeyMap = createMap();
308			this._keys = [];
309			this.length = 0;
310			this._bytesInUse = 0;
311			if (events.EventEmitter.listenerCount(this, 'storage')) {
			0 ignored issues – show Complexity Best Practice introduced 2020-11-15 01:03 UTC by Report Bug Copy Issue Report There is no return statement if `events.EventEmitter.list...rCount(this, "storage")` is `false`. Are you sure this is correct? If so, consider adding `return;` explicitly. This check looks for functions where a `return` statement is found in some execution paths, but not in all. Consider this little piece of code function isBig(a) { if (a > 5000) { return "yes"; } } console.log(isBig(5001)); //returns yes console.log(isBig(42)); //returns undefined The function `isBig` will only return a specific value when its parameter is bigger than 5000. In any other case, it will implicitly return `undefined`. This behaviour may not be what you had intended. In any case, you can add a `return undefined` to the other execution path to make the return value explicit. Loading history...
312			evnt = new StorageEvent(null, null, null, this._eventUrl);
313			return this.emit('storage', evnt);
314			}
315			};
316
317			LocalStorage.prototype._getBytesInUse = function() {
318			return this._bytesInUse;
319			};
320
321			LocalStorage.prototype._deleteLocation = function() {
322			delete instanceMap[this._location];
323			_rm(this._location);
324			this._metaKeyMap = {};
325			this._keys = [];
326			this.length = 0;
327			return this._bytesInUse = 0;
328			};
329
330			return LocalStorage;
331
332			})(events.EventEmitter);
333
334			JSONStorage = (function(superClass) {
335			extend(JSONStorage, superClass);
336
337			function JSONStorage() {
338			return JSONStorage.__super__.constructor.apply(this, arguments);
339			}
340
341			JSONStorage.prototype.setItem = function(key, value) {
342			var newValue;
343			newValue = JSON.stringify(value);
344			return JSONStorage.__super__.setItem.call(this, key, newValue);
345			};
346
347			JSONStorage.prototype.getItem = function(key) {
348			return JSON.parse(JSONStorage.__super__.getItem.call(this, key));
349			};
350
351			return JSONStorage;
352
353			})(LocalStorage);
354
355			exports.LocalStorage = LocalStorage;
356
357			exports.JSONStorage = JSONStorage;
358
359			exports.QUOTA_EXCEEDED_ERR = QUOTA_EXCEEDED_ERR;
360
361			}).call(this);
362

dimaslanjaka / universal-framework

libs/src/node-localstorage/LocalStorage.js F last analyzed 2021-05-12 13:02 UTC

Complexity

Size

Duplication

Importance

6 Functions

How to fix Complexity

Complexity

Duplication Side-by-Side

Filter issues like

libs/src/node-localstorage/LocalStorage.js F
last analyzed 2021-05-12 13:02 UTC