From: Evan You <yyx990803@gmail.com>
Date: Wed, 29 Mar 2023 13:01:52 +0000 (+0800)
Subject: fix(compiler-sfc): infer object type for empty type literal
X-Git-Tag: v3.3.0-alpha.6~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1a04fba10b6462303c65f1095da86ce05c14f1f4;p=thirdparty%2Fvuejs%2Fcore.git

fix(compiler-sfc): infer object type for empty type literal
---

diff --git a/packages/compiler-sfc/src/compileScript.ts b/packages/compiler-sfc/src/compileScript.ts
index 279a41d081..af54641f4d 100644
--- a/packages/compiler-sfc/src/compileScript.ts
+++ b/packages/compiler-sfc/src/compileScript.ts
@@ -2040,16 +2040,16 @@ function inferRuntimeType(
       // TODO (nice to have) generate runtime property validation
       const types = new Set<string>()
       for (const m of node.members) {
-        switch (m.type) {
-          case 'TSCallSignatureDeclaration':
-          case 'TSConstructSignatureDeclaration':
-            types.add('Function')
-            break
-          default:
-            types.add('Object')
+        if (
+          m.type === 'TSCallSignatureDeclaration' ||
+          m.type === 'TSConstructSignatureDeclaration'
+        ) {
+          types.add('Function')
+        } else {
+          types.add('Object')
         }
       }
-      return Array.from(types)
+      return types.size ? Array.from(types) : ['Object']
     }
     case 'TSFunctionType':
       return ['Function']