完善非空判断

Author: lhy

src/main.ts

@@ -13,6 +13,7 @@ import { ErrorHandler } from "./errorHandler";
 import { WebviewProvider } from "./webviewProvider";
 import { ApiService } from "./apiService";
 import { PasswordManager } from "./PasswordManager";
+import { isBlank } from "./utils/pawsqlUtils";
 
 export class PawSQLExtension {
   private readonly decorationManager: DecorationManager;
@@ -56,11 +57,11 @@ export class PawSQLExtension {
   ): Promise<void> {
     try {
       const config = vscode.workspace.getConfiguration("pawsql");
-      const email = config.get<string>("email");
-      const password = await this.passwordManager.getPassword();
-      const backendUrl = config.get<string>("backendUrl");
+      const email = config.get<string>("email") ?? "";
+      const password = (await this.passwordManager.getPassword()) ?? "";
+      const backendUrl = config.get<string>("backendUrl") ?? "";
 
-      if (!email || !password || !backendUrl) {
+      if (isBlank(email) || isBlank(password) || isBlank(backendUrl)) {
         return;
       }
 

src/utils/pawsqlUtils.ts

@@ -150,3 +150,15 @@ const findNextValidQuery = (
 
   return null;
 };
+
+export function isNotBlank(
+  a: string | null | undefined
+): a is Exclude<string, null | undefined> {
+  return a !== undefined && a !== null && a !== "";
+}
+
+export function isBlank(
+  a: string | null | undefined
+): a is Exclude<string, null | undefined> {
+  return a === undefined || a === null || a === "";
+}