Implement db.getSync() (#21)

Ref: Level/community#144
Category: addition

Author: vweevers

index.js

@@ -37,6 +37,7 @@ class MemoryLevel extends AbstractLevel {
       createIfMissing: false,
       errorIfExists: false,
       has: true,
+      getSync: true,
       encodings: { [storeEncoding]: true },
       signals: {
         // Would have no value here because the operations are synchronous
@@ -62,6 +63,11 @@ class MemoryLevel extends AbstractLevel {
     return tree.get(key)
   }
 
+  _getSync (key, options) {
+    const tree = options.snapshot?.[kTree] ?? this.#tree
+    return tree.get(key)
+  }
+
   async _getMany (keys, options) {
     const tree = options.snapshot?.[kTree] ?? this.#tree
     return keys.map(get, tree)

package.json

@@ -20,7 +20,7 @@
     "CHANGELOG.md"
   ],
   "dependencies": {
-    "abstract-level": "^3.0.1",
+    "abstract-level": "^3.1.0",
     "functional-red-black-tree": "^1.0.1",
     "module-error": "^1.0.1"
   },