From a549d289d7a32672cd6cfe1eb3863958b10deffb Mon Sep 17 00:00:00 2001
From: Richard Monette <richard.monette@shopify.com>
Date: Fri, 21 Oct 2016 13:27:54 -0400
Subject: [PATCH] introduce unhandled liquid exception

check arity
---
 lib/liquid/block_body.rb | 4 ++--
 lib/liquid/context.rb    | 6 ++++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/liquid/block_body.rb b/lib/liquid/block_body.rb
index 00811c1..4e2a4c9 100644
--- a/lib/liquid/block_body.rb
+++ b/lib/liquid/block_body.rb
@@ -93,10 +93,10 @@ module Liquid
         rescue MemoryError => e
           raise e
         rescue UndefinedVariable, UndefinedDropMethod, UndefinedFilter => e
-          context.handle_error(e, token.line_number)
+          context.handle_error(e, token.line_number, token.raw)
           output << nil
         rescue ::StandardError => e
-          output << context.handle_error(e, token.line_number)
+          output << context.handle_error(e, token.line_number, token.raw)
         end
       end
 
diff --git a/lib/liquid/context.rb b/lib/liquid/context.rb
index d41af49..7692821 100644
--- a/lib/liquid/context.rb
+++ b/lib/liquid/context.rb
@@ -73,7 +73,7 @@ module Liquid
       @interrupts.pop
     end
 
-    def handle_error(e, line_number = nil)
+    def handle_error(e, line_number = nil, raw_token = nil)
       if e.is_a?(Liquid::Error)
         e.template_name ||= template_name
         e.line_number ||= line_number
@@ -82,7 +82,9 @@ module Liquid
       output = nil
 
       if exception_handler
-        result = exception_handler.call(e)
+        args = [e]
+        args << { line_number: line_number, raw_token: raw_token } if exception_handler.arity == 2
+        result = exception_handler.call(*args)
         case result
         when Exception
           e = result