feat: support source maps

Author: hunyan-io

src/cache.ts

@@ -13,7 +13,12 @@ export default function createCache(config: ResolvedConfig) {
       if (!descriptorCache.has(filename)) {
         const { descriptor, errors } = compiler.parse(
           fs.readFileSync(filename, "utf8").toString(),
-          { filename }
+          {
+            filename,
+            sourceMap:
+              config.command === "build" ? !!config.build.sourcemap : true,
+            sourceRoot: config.root,
+          }
         );
         if (errors.length > 0) {
           throw errors[0];

src/index.ts

@@ -37,14 +37,18 @@ export default function vueNestedSFC(): PluginOption {
 
       const descriptor = cache.getDescriptor(filename);
 
-      return (
-        descriptor.customBlocks.find(
-          (block) =>
-            block.type === "component" &&
-            typeof block.attrs.name === "string" &&
-            pascalCase(block.attrs.name) === component
-        )?.content || ""
+      const componentBlock = descriptor.customBlocks.find(
+        (block) =>
+          block.type === "component" &&
+          typeof block.attrs.name === "string" &&
+          pascalCase(block.attrs.name) === component
       );
+
+      if (!componentBlock) {
+        return "";
+      }
+
+      return { code: componentBlock.content, map: componentBlock.map as any };
     },
 
     transform(code, id) {