From f57cad4f5dd0436d5b207d362afb34fc5f3f9acb Mon Sep 17 00:00:00 2001
From: Artem Strygin <art-snake@yandex-team.ru>
Date: Mon, 14 Aug 2017 23:35:52 +0300
Subject: Add CPDF_ObjectWalker.

It is allow us to walk on all non-null sub-objects
in an object in depth, include itself,

Change-Id: Ia23051073984411668112422b47cf7a4460aa078
Reviewed-on: https://pdfium-review.googlesource.com/8910
Commit-Queue: Art Snake <art-snake@yandex-team.ru>
Reviewed-by: dsinclair <dsinclair@chromium.org>
---
 core/fpdfapi/parser/cpdf_object.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'core/fpdfapi/parser/cpdf_object.h')

diff --git a/core/fpdfapi/parser/cpdf_object.h b/core/fpdfapi/parser/cpdf_object.h
index b0c1adf955..04b77ec706 100644
--- a/core/fpdfapi/parser/cpdf_object.h
+++ b/core/fpdfapi/parser/cpdf_object.h
@@ -71,6 +71,7 @@ class CPDF_Object {
   virtual bool IsReference() const;
   virtual bool IsStream() const;
   virtual bool IsString() const;
+  virtual bool IsNull() const;
 
   virtual CPDF_Array* AsArray();
   virtual const CPDF_Array* AsArray() const;
-- 
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