fix(compiler-sfc): infer correct type for enums

fix #7511

Author: yyx990803

packages/compiler-sfc/__tests__/__snapshots__/compileScript.spec.ts.snap

@@ -1677,6 +1677,8 @@ interface Test {}
 
       type Alias = number[]
 
+      enum Enum { one = '1', two = '2' }
+
 
 export default /*#__PURE__*/_defineComponent({
   props: {
@@ -1702,6 +1704,7 @@ export default /*#__PURE__*/_defineComponent({
     symbol: { type: Symbol, required: true },
     extract: { type: Number, required: true },
     exclude: { type: [Number, Boolean], required: true },
+    enum: { type: Object, required: true },
     uppercase: { type: String, required: true },
     params: { type: Array, required: true },
     nonNull: { type: String, required: true },
@@ -1719,7 +1722,7 @@ export default /*#__PURE__*/_defineComponent({
 
 
 
-return {  }
+return { Enum }
 }
 
 })"

packages/compiler-sfc/__tests__/compileScript.spec.ts

@@ -998,6 +998,8 @@ const emit = defineEmits(['a', 'b'])
 
       type Alias = number[]
 
+      enum Enum { one = '1', two = '2' }
+
       defineProps<{
         string: string
         number: number
@@ -1021,6 +1023,7 @@ const emit = defineEmits(['a', 'b'])
         symbol: symbol
         extract: Extract<1 | 2 | boolean, 2>
         exclude: Exclude<1 | 2 | boolean, 2>
+        enum: Enum
         uppercase: Uppercase<'foo'>
         params: Parameters<(foo: any) => void>
         nonNull: NonNullable<string | null>
@@ -1066,6 +1069,7 @@ const emit = defineEmits(['a', 'b'])
       expect(content).toMatch(
         `exclude: { type: [Number, Boolean], required: true }`
       )
+      expect(content).toMatch(`enum: { type: Object, required: true }`)
       expect(content).toMatch(`uppercase: { type: String, required: true }`)
       expect(content).toMatch(`params: { type: Array, required: true }`)
       expect(content).toMatch(`nonNull: { type: String, required: true }`)
@@ -1115,7 +1119,9 @@ const emit = defineEmits(['a', 'b'])
         foo: BindingTypes.PROPS,
         uppercase: BindingTypes.PROPS,
         params: BindingTypes.PROPS,
-        nonNull: BindingTypes.PROPS
+        nonNull: BindingTypes.PROPS,
+        enum: BindingTypes.PROPS,
+        Enum: BindingTypes.LITERAL_CONST
       })
     })
 

packages/compiler-sfc/src/compileScript.ts

@@ -1369,14 +1369,15 @@ export function compileScript(
     if (isTS) {
       // move all Type declarations to outer scope
       if (
-        (node.type.startsWith('TS') ||
-          (node.type === 'ExportNamedDeclaration' &&
-            node.exportKind === 'type') ||
-          (node.type === 'VariableDeclaration' && node.declare)) &&
-        node.type !== 'TSEnumDeclaration'
+        node.type.startsWith('TS') ||
+        (node.type === 'ExportNamedDeclaration' &&
+          node.exportKind === 'type') ||
+        (node.type === 'VariableDeclaration' && node.declare)
       ) {
         recordType(node, declaredTypes)
-        hoistNode(node)
+        if (node.type !== 'TSEnumDeclaration') {
+          hoistNode(node)
+        }
       }
     }
   }
@@ -1957,7 +1958,10 @@ interface PropTypeData {
 }
 
 function recordType(node: Node, declaredTypes: Record<string, string[]>) {
-  if (node.type === 'TSInterfaceDeclaration') {
+  if (
+    node.type === 'TSInterfaceDeclaration' ||
+    node.type === 'TSEnumDeclaration'
+  ) {
     declaredTypes[node.id.name] = [`Object`]
   } else if (node.type === 'TSTypeAliasDeclaration') {
     declaredTypes[node.id.name] = inferRuntimeType(