Merge pull request #35 from Terran-One/feat/storage-keys

IStorage.keys method

Author: Kiruse

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@terran-one/cosmwasm-vm-js",
-  "version": "0.1.14",
+  "version": "0.1.15",
   "license": "MIT",
   "author": "TerranOne",
   "main": "dist/index.js",

src/backend/storage.ts

@@ -9,6 +9,8 @@ export interface IStorage {
   set(key: Uint8Array, value: Uint8Array): void;
 
   remove(key: Uint8Array): void;
+  
+  keys(): Iterable<Uint8Array>;
 }
 
 export class Record {
@@ -42,6 +44,12 @@ export interface IIterStorage {
 export class BasicKVStorage implements IStorage {
   // TODO: Add binary uint / typed Addr maps for cw-storage-plus compatibility
   constructor(public dict: Immutable.Map<string, string> = Immutable.Map()) {}
+  
+  *keys() {
+    for (const key of this.dict.keys()) {
+      yield fromBase64(key);
+    }
+  }
 
   get(key: Uint8Array): Uint8Array | null {
     const keyStr = toBase64(key);