From c641176dcd401cf49a75fbfee0ba35fe5a451dc7 Mon Sep 17 00:00:00 2001
From: Nerixyz <nero.9@hotmail.de>
Date: Sat, 24 Oct 2020 18:04:25 +0200
Subject: [PATCH 1/3] fix: add language fallback for template code

---
 src/index.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 626565c..70ea234 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -146,7 +146,7 @@ export default function PluginVue(userOptions: Partial<Options> = {}): Plugin {
         if (query.src) {
             this.addWatchFile(query.filename);
         }
-        
+
         if (query.type === 'template') {
           debug(`transform(${id})`)
           const block = descriptor.template!
@@ -478,7 +478,7 @@ function getTemplateCode(
     const idQuery = `&id=${id}`
     const scopedQuery = hasScoped ? `&scoped=true` : ``
     const srcQuery = descriptor.template.src ? `&src` : ``
-    const attrsQuery = attrsToQuery(descriptor.template.attrs)
+    const attrsQuery = attrsToQuery(descriptor.template.attrs, 'js')
     const query = `?vue&type=template${idQuery}${srcQuery}${scopedQuery}${attrsQuery}`
     templateRequest = _(src + query)
     templateImport = `import { ${renderFnName} } from ${templateRequest}`

From f4866ed2318bb50d7e5b2210693f21582ac7eb5d Mon Sep 17 00:00:00 2001
From: Nerixyz <nero.9@hotmail.de>
Date: Sat, 24 Oct 2020 19:17:14 +0200
Subject: [PATCH 2/3] tests: expect lang.js in template

---
 src/index.spec.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/index.spec.ts b/src/index.spec.ts
index c3bf002..78bd46c 100644
--- a/src/index.spec.ts
+++ b/src/index.spec.ts
@@ -53,7 +53,7 @@ describe('Rollup Plugin Vue', () => {
 
       expect(code).toEqual(
         expect.stringContaining(
-          `import { render } from "example.vue?vue&type=template&id=063a7d4c"`
+          `import { render } from "example.vue?vue&type=template&id=063a7d4c&lang.js"`
         )
       )
       expect(code).toEqual(expect.stringContaining(`script.render = render`))
@@ -66,7 +66,7 @@ describe('Rollup Plugin Vue', () => {
       )
       expect(code).toEqual(
         expect.stringContaining(
-          `import { render } from "example.vue?vue&type=template&id=063a7d4c"`
+          `import { render } from "example.vue?vue&type=template&id=063a7d4c&lang.js"`
         )
       )
       expect(code).toEqual(expect.stringContaining(`script.render = render`))

From 65467e8c6a6b3150c3fadd606ea10515a922ceee Mon Sep 17 00:00:00 2001
From: Nerixyz <nero.9@hotmail.de>
Date: Sat, 24 Oct 2020 19:36:53 +0200
Subject: [PATCH 3/3] fix: always force language fallback

---
 src/index.ts | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/index.ts b/src/index.ts
index 70ea234..e71f860 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -144,7 +144,7 @@ export default function PluginVue(userOptions: Partial<Options> = {}): Plugin {
         const descriptor = getDescriptor(query.filename)
         const hasScoped = descriptor.styles.some((s) => s.scoped)
         if (query.src) {
-            this.addWatchFile(query.filename);
+          this.addWatchFile(query.filename)
         }
 
         if (query.type === 'template') {
@@ -478,7 +478,7 @@ function getTemplateCode(
     const idQuery = `&id=${id}`
     const scopedQuery = hasScoped ? `&scoped=true` : ``
     const srcQuery = descriptor.template.src ? `&src` : ``
-    const attrsQuery = attrsToQuery(descriptor.template.attrs, 'js')
+    const attrsQuery = attrsToQuery(descriptor.template.attrs, 'js', true)
     const query = `?vue&type=template${idQuery}${srcQuery}${scopedQuery}${attrsQuery}`
     templateRequest = _(src + query)
     templateImport = `import { ${renderFnName} } from ${templateRequest}`
@@ -638,12 +638,15 @@ function _(any: any) {
   return JSON.stringify(any)
 }
 
-function normalizeSourceMap(map: SFCTemplateCompileResults['map'], id: string): any {
+function normalizeSourceMap(
+  map: SFCTemplateCompileResults['map'],
+  id: string
+): any {
   if (!map) return null as any
 
   if (!id.includes('type=script')) {
-    map.file = id;
-    map.sources[0] = id;
+    map.file = id
+    map.sources[0] = id
   }
 
   return {