Mutable

INIT_ALL, NOTE_MOVE, NOTE_UPDATE(create/update) done

browser/lib/Mutable.js

@@ -0,0 +1,87 @@
+class MutableMap {
+  constructor (iterable) {
+    this._map = new Map(iterable)
+  }
+
+  get (...args) {
+    return this._map.get(...args)
+  }
+
+  set (...args) {
+    return this._map.set(...args)
+  }
+
+  delete (...args) {
+    return this._map.delete(...args)
+  }
+
+  has (...args) {
+    return this._map.has(...args)
+  }
+
+  clear (...args) {
+    return this._map.clear(...args)
+  }
+
+  forEach (...args) {
+    return this._map.forEach(...args)
+  }
+
+  [Symbol.iterator] () {
+    return this._map[Symbol.iterator]()
+  }
+
+  map (cb) {
+    let result = []
+    for (let [key, value] of this._map) {
+      result.push(cb(value, key))
+    }
+    return result
+  }
+}
+
+class MutableSet {
+  constructor (iterable) {
+    if (iterable instanceof MutableSet) {
+      this._set = new Set(iterable._set)
+    } else {
+      this._set = new Set(iterable)
+    }
+  }
+
+  add (...args) {
+    return this._set.add(...args)
+  }
+
+  delete (...args) {
+    return this._set.delete(...args)
+  }
+
+  forEach (...args) {
+    return this._map.forEach(...args)
+  }
+
+  [Symbol.iterator] () {
+    return this._set[Symbol.iterator]()
+  }
+
+  map (cb) {
+    let result = []
+    this._set.forEach(function (value, key) {
+      result.push(cb(value, key))
+    })
+
+    return result
+  }
+
+  toJS () {
+    return Array.from(this._set)
+  }
+}
+
+const Mutable = {
+  Map: MutableMap,
+  Set: MutableSet
+}
+
+module.exports = Mutable