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.cpp | 4 ++++
 1 file changed, 4 insertions(+)

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

diff --git a/core/fpdfapi/parser/cpdf_object.cpp b/core/fpdfapi/parser/cpdf_object.cpp
index 82c3b09416..b35c6e5b6f 100644
--- a/core/fpdfapi/parser/cpdf_object.cpp
+++ b/core/fpdfapi/parser/cpdf_object.cpp
@@ -95,6 +95,10 @@ bool CPDF_Object::IsString() const {
   return false;
 }
 
+bool CPDF_Object::IsNull() const {
+  return false;
+}
+
 CPDF_Array* CPDF_Object::AsArray() {
   return nullptr;
 }
-- 
cgit v1.2.3