From b3507bf147ff47e331da36ba7c8e6b700c513633 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 28 Mar 2019 03:46:48 +0000
Subject: erb.rb: prohibit marshaling [EXPERIMENTAL]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67356 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 lib/erb.rb | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'lib/erb.rb')

diff --git a/lib/erb.rb b/lib/erb.rb
index 2adc5e0e58..df9a1e910d 100644
--- a/lib/erb.rb
+++ b/lib/erb.rb
@@ -833,6 +833,7 @@ class ERB
     @src, @encoding, @frozen_string = *compiler.compile(str)
     @filename = nil
     @lineno = 0
+    @_init = self.class.singleton_class
   end
   NOT_GIVEN = Object.new
   private_constant :NOT_GIVEN
@@ -891,6 +892,9 @@ class ERB
   # code evaluation.
   #
   def result(b=new_toplevel)
+    unless @_init.equal?(self.class.singleton_class)
+      raise ArgumentError, "not initialized"
+    end
     if @safe_level
       proc do
         prev_safe_level = $SAFE
-- 
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