Ignored null values in element position

Author: danielepolencic

index.js

@@ -155,12 +155,12 @@ function element(ast, children, config) {
 
   if (name === 'template' && 'content' in ast) {
     pos = ast.sourceCodeLocation
-    start = pos && pos.startTag && position(pos.startTag).end
-    end = pos && pos.endTag && position(pos.endTag).start
+    start = pos && pos.startTag && position(pos.startTag)
+    end = pos && pos.endTag && position(pos.endTag)
 
     node.content = transform(ast.content, config)
 
-    if ((start || end) && config.file) {
+    if (((start && start.end) || (end && end.start)) && config.file) {
       node.content.position = {start: start, end: end}
     }
   }