From 8ea36a6ac523927b59ef4da08c80ba2aa378bcbe Mon Sep 17 00:00:00 2001
From: Nathan Sobo <nathan@github.com>
Date: Wed, 1 Jul 2015 13:59:47 -0500
Subject: [PATCH] In invalid scope exception: include grammar metadata, ask for
 details

---
 src/tokenized-buffer.coffee | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/tokenized-buffer.coffee b/src/tokenized-buffer.coffee
index e44183489..4f4c48ed1 100644
--- a/src/tokenized-buffer.coffee
+++ b/src/tokenized-buffer.coffee
@@ -391,7 +391,11 @@ class TokenizedBuffer extends Model
         expectedScope = tag + 1
         poppedScope = scopes.pop()
         unless poppedScope is expectedScope
-          throw new Error("Encountered an invalid scope end id. Popped #{poppedScope}, expected to pop #{expectedScope}.")
+          error = new Error("Encountered an invalid scope end id. Popped #{poppedScope}, expected to pop #{expectedScope}.\nPlease report the grammar and contents of this file so we can fix this.")
+          error.metadata = {
+            grammarScopeName: @grammar.scopeName
+          }
+          throw error
     scopes
 
   indentLevelForRow: (bufferRow) ->