- 更新index.d.ts

- 修复`search`的返回值类型，根据worker、db推断返回类型

- 更新types.ts
  测试ts静态类型

test/types.ts

@@ -1,20 +1,26 @@
-import { DefaultDocumentSearchResults, Document, Resolver } from "flexsearch";
+import {
+    DefaultDocumentSearchResults,
+    Document,
+    Index,
+    Worker,
+    Resolver,
+    StorageInterface,
+} from "flexsearch";
 import "../index";
 
-const document = new Document<{
-    title: string
-    description: string
-    tags: {
-        name: string
-        id: number
-    }[]
-}>({
-    document: {
-        index: ["tags"],
-    },
-});
-
 async function test() {
+    const document = new Document<{
+        title: string
+        description: string
+        tags: {
+            name: string
+            id: number
+        }[]
+    }>({
+        document: {
+            index: [ "tags" ],
+        },
+    });
     // The correct type
     const doc1 = await document.searchAsync({});
     const doc2: Resolver = await document.searchAsync({
@@ -35,6 +41,30 @@ async function test() {
     const docw2: DefaultDocumentSearchResults = await document.searchAsync({
         enrich: true,
     });
-    // ...
+    // Promise?
+    const documentNoWorker = new Document({});
+    const doc5 = documentNoWorker.search({}); // No Promise
+
+    const documentWorker = new Document({
+        worker: true,
+    });
+    const doc6 = await documentWorker.search({}) // Promise
+
+    const documentWorker2 = new Document({
+        worker: '...',
+    });
+    const doc7 = await documentWorker2.search({}) // Promise
+
+    const index = new Index({})
+    const idx = index.search({}) // No Promise
+
+    const worker =  new Worker()
+    const wkr = await worker.search({}) // Promise
+
+    const documentDb = new Document({
+        db: {} as unknown as StorageInterface
+    })
+
+    const doc8 = documentDb.search({}) // Promise
 }