From 0bee641eb3a0df5cbb9b2b1ac39f6895e04f5187 Mon Sep 17 00:00:00 2001
From: Rahul Kadyan <hi@znck.me>
Date: Sat, 28 Oct 2017 20:05:49 +0530
Subject: [PATCH] fix: generate sourcemaps even if previous maps are provided

---
 src/style-compiler/index.js |  4 ----
 test/style-compiler.test.js | 11 +++++++++++
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/style-compiler/index.js b/src/style-compiler/index.js
index aa6c65d..554586e 100644
--- a/src/style-compiler/index.js
+++ b/src/style-compiler/index.js
@@ -21,10 +21,6 @@ module.exports = function compileStyle (style, filename, config) {
 
   // source map
   if (config.needMap) {
-    if (!style.map) {
-      throw Error('Previous source map is missing.')
-    }
-
     options.map = {
       inline: false,
       annotation: false,
diff --git a/test/style-compiler.test.js b/test/style-compiler.test.js
index e18ff4f..3de9730 100644
--- a/test/style-compiler.test.js
+++ b/test/style-compiler.test.js
@@ -10,3 +10,14 @@ test('should rewrite scoped style', () => {
   const compiled = compiler(style, 'foo.vue', { scopeId: 'xxx', needMap: false })
   expect(compiled.code.indexOf('.foo[xxx]')).toBeGreaterThan(-1)
 })
+
+test('should generate sourcemap', () => {
+  const style = {
+    code: '.foo { color: red }',
+    descriptor: {
+      scoped: true
+    }
+  }
+  const compiled = compiler(style, 'foo.vue', { scopeId: 'xxx' })
+  expect(compiled.map).toBeTruthy()
+})