From ae026f5458c5c919031a41310321ae26cd56fae0 Mon Sep 17 00:00:00 2001
From: Stephen Kelly <steveire@gmail.com>
Date: Sun, 19 Jul 2015 16:26:49 +0200
Subject: [PATCH] cmState: Store Children states in parent state.

---
 Source/cmState.cxx | 12 +++++++++++-
 Source/cmState.h   |  2 ++
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/Source/cmState.cxx b/Source/cmState.cxx
index 53fdae0d67..3df855a8a5 100644
--- a/Source/cmState.cxx
+++ b/Source/cmState.cxx
@@ -76,6 +76,8 @@ struct cmState::BuildsystemDirectoryStateType
   std::vector<cmListFileBacktrace> CompileOptionsBacktraces;
 
   cmPropertyMap Properties;
+
+  std::vector<cmState::Snapshot> Children;
 };
 
 cmState::cmState(cmake* cm)
@@ -274,6 +276,7 @@ cmState::Snapshot cmState::Reset()
   it->CompileOptionsBacktraces.clear();
   it->DirectoryEnd = pos;
   it->Properties.clear();
+  it->Children.clear();
   }
 
   this->PolicyStack.Clear();
@@ -800,7 +803,9 @@ cmState::CreateBuildsystemDirectorySnapshot(Snapshot originSnapshot,
   pos->Parent = origin;
   pos->Root = origin;
   pos->Vars = this->VarTree.Extend(origin);
-  return cmState::Snapshot(this, pos);
+  cmState::Snapshot snapshot = cmState::Snapshot(this, pos);
+  originSnapshot.Position->BuildSystemDirectory->Children.push_back(snapshot);
+  return snapshot;
 }
 
 cmState::Snapshot
@@ -938,6 +943,11 @@ cmState::Snapshot::Snapshot(cmState* state)
 {
 }
 
+std::vector<cmState::Snapshot> cmState::Snapshot::GetChildren()
+{
+  return this->Position->BuildSystemDirectory->Children;
+}
+
 cmState::Snapshot::Snapshot(cmState* state, PositionType position)
   : State(state),
   Position(position)
diff --git a/Source/cmState.h b/Source/cmState.h
index e503cd2588..a488c62686 100644
--- a/Source/cmState.h
+++ b/Source/cmState.h
@@ -65,6 +65,8 @@ public:
     void SetListFile(std::string const& listfile);
 
     std::string GetExecutionListFile() const;
+
+    std::vector<Snapshot> GetChildren();
     std::string GetEntryPointCommand() const;
     long GetEntryPointLine() const;