cmLocalGenerator: Require a valid cmState::Snapshot in the ctor.

Refactor the local generator creation API to accept a
cmState::Snapshot.  Adjust MakeLocalGenerator to use the 'current'
snapshot in cases where there is no parent.  Create the snapshot
for subdirectories in cmMakefile::AddSubdirectory.

This means that snapshots are now created at the point of extending the tree,
as appropriate, and independently of the cmLocalGenerator and cmMakefile they
represent the state for.

1 files changed, 2 insertions, 1 deletions

diff --git a/Source/cmLocalVisualStudio7Generator.h b/Source/cmLocalVisualStudio7Generator.h
index 59c2144..43f3af9 100644
--- a/Source/cmLocalVisualStudio7Generator.h
+++ b/Source/cmLocalVisualStudio7Generator.h
@@ -36,7 +36,8 @@ class cmLocalVisualStudio7Generator : public cmLocalVisualStudioGenerator
 public:
   ///! Set cache only and recurse to false by default.
   cmLocalVisualStudio7Generator(cmGlobalGenerator* gg,
-                                cmLocalGenerator* parent);
+                                cmLocalGenerator* parent,
+                                cmState::Snapshot snapshot);
 
   virtual ~cmLocalVisualStudio7Generator();