From 1e1682f060883ee11e802834adb273159d8e84cc Mon Sep 17 00:00:00 2001
From: Evan You <yyx990803@gmail.com>
Date: Mon, 9 Aug 2021 16:22:20 -0400
Subject: [PATCH] fix(compiler-sfc): fix import usage check for last expression

---
 .../__tests__/__snapshots__/compileScript.spec.ts.snap       | 4 ++--
 packages/compiler-sfc/__tests__/compileScript.spec.ts        | 5 +++--
 packages/compiler-sfc/src/compileScript.ts                   | 1 +
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/packages/compiler-sfc/__tests__/__snapshots__/compileScript.spec.ts.snap b/packages/compiler-sfc/__tests__/__snapshots__/compileScript.spec.ts.snap
index 85aa31337..6c76e5fe7 100644
--- a/packages/compiler-sfc/__tests__/__snapshots__/compileScript.spec.ts.snap
+++ b/packages/compiler-sfc/__tests__/__snapshots__/compileScript.spec.ts.snap
@@ -206,7 +206,7 @@ return { x }
 
 exports[`SFC compile <script setup> imports imports not used in <template> should not be exposed 1`] = `
 "import { defineComponent as _defineComponent } from 'vue'
-import { FooBar, FooBaz, FooQux, vMyDir, x, y, z, x$y } from './x'
+import { FooBar, FooBaz, FooQux, vMyDir, x, y, z, x$y, Last } from './x'
         
 export default _defineComponent({
   setup(__props, { expose }) {
@@ -214,7 +214,7 @@ export default _defineComponent({
 
         const fooBar: FooBar = 1
         
-return { fooBar, FooBaz, FooQux, vMyDir, x, z, x$y }
+return { fooBar, FooBaz, FooQux, vMyDir, x, z, x$y, Last }
 }
 
 })"
diff --git a/packages/compiler-sfc/__tests__/compileScript.spec.ts b/packages/compiler-sfc/__tests__/compileScript.spec.ts
index 0731d0f23..406462f39 100644
--- a/packages/compiler-sfc/__tests__/compileScript.spec.ts
+++ b/packages/compiler-sfc/__tests__/compileScript.spec.ts
@@ -213,13 +213,14 @@ defineExpose({ foo: 123 })
     test('imports not used in <template> should not be exposed', () => {
       const { content } = compile(`
         <script setup lang="ts">
-        import { FooBar, FooBaz, FooQux, vMyDir, x, y, z, x$y } from './x'
+        import { FooBar, FooBaz, FooQux, vMyDir, x, y, z, x$y, Last } from './x'
         const fooBar: FooBar = 1
         </script>
         <template>
           <FooBaz v-my-dir>{{ x }} {{ yy }} {{ x$y }}</FooBaz>
           <foo-qux/>
           <div :id="z + 'y'">FooBar</div>
+          <Last/>
         </template>
         `)
       assertCode(content)
@@ -231,7 +232,7 @@ defineExpose({ foo: 123 })
       // y: should not be matched by {{ yy }} or 'y' in binding exps
       // x$y: #4274 should escape special chars when creating Regex
       expect(content).toMatch(
-        `return { fooBar, FooBaz, FooQux, vMyDir, x, z, x$y }`
+        `return { fooBar, FooBaz, FooQux, vMyDir, x, z, x$y, Last }`
       )
     })
   })
diff --git a/packages/compiler-sfc/src/compileScript.ts b/packages/compiler-sfc/src/compileScript.ts
index 89a33f2ec..9a558f25f 100644
--- a/packages/compiler-sfc/src/compileScript.ts
+++ b/packages/compiler-sfc/src/compileScript.ts
@@ -2220,6 +2220,7 @@ function resolveTemplateUsageCheckString(sfc: SFCDescriptor) {
     ]
   })
 
+  code += ';'
   templateUsageCheckCache.set(content, code)
   return code
 }