implemented undo 🙌

2017-10-30 11:33:00 +01:00
parent c545118637
commit 0208d83f91
16 changed files with 302 additions and 109 deletions
--- a/src/Transaction.js
+++ b/src/Transaction.js
@@ -5,8 +5,10 @@ export default class Transaction {
    // types added during transaction
    this.newTypes = new Set()
    // changed types (does not include new types)
-    // maps from type to parentSubs (item.parentSub = null for array elements)
+    // maps from type to parentSubs (item._parentSub = null for array elements)
    this.changedTypes = new Map()
+    this.deletedStructs = new Set()
+    this.beforeState = new Map()
  }
 }