Decaffeinate src/item-registry.coffee

src/item-registry.coffee

@@ -1,15 +0,0 @@
-module.exports =
-class ItemRegistry
-  constructor: ->
-    @items = new WeakSet
-
-  addItem: (item) ->
-    if @hasItem(item)
-      throw new Error("The workspace can only contain one instance of item #{item}")
-    @items.add(item)
-
-  removeItem: (item) ->
-    @items.delete(item)
-
-  hasItem: (item) ->
-    @items.has(item)

src/item-registry.js

@@ -0,0 +1,21 @@
+module.exports =
+class ItemRegistry {
+  constructor () {
+    this.items = new WeakSet()
+  }
+
+  addItem (item) {
+    if (this.hasItem(item)) {
+      throw new Error(`The workspace can only contain one instance of item ${item}`)
+    }
+    return this.items.add(item)
+  }
+
+  removeItem (item) {
+    return this.items.delete(item)
+  }
+
+  hasItem (item) {
+    return this.items.has(item)
+  }
+}