re-organization of muz

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

src/ast/scoped_proof.h

@@ -0,0 +1,55 @@
+/*++
+Copyright (c) 2013 Microsoft Corporation
+
+Module Name:
+
+    scoped_proof.h
+
+Abstract:
+
+    Scoped proof environments. Toggles enabling proofs.
+
+Author:
+
+    Nikolaj Bjorner (nbjorner) 2013-08-28
+
+Revision History:
+
+--*/
+#ifndef _SCOPED_PROOF__H_
+#define _SCOPED_PROOF_H_
+
+#include "ast.h"
+
+class scoped_proof_mode {
+    ast_manager&   m;
+    proof_gen_mode m_mode;
+public:
+    scoped_proof_mode(ast_manager& m, proof_gen_mode mode): m(m) {
+        m_mode = m.proof_mode();
+        m.toggle_proof_mode(mode);
+    }
+    ~scoped_proof_mode() {
+            m.toggle_proof_mode(m_mode);            
+        }
+    
+};
+
+class scoped_proof : public scoped_proof_mode {
+public:
+    scoped_proof(ast_manager& m): scoped_proof_mode(m, PGM_FINE) {}
+};
+
+class scoped_no_proof : public scoped_proof_mode {
+public:
+    scoped_no_proof(ast_manager& m): scoped_proof_mode(m, PGM_DISABLED) {}
+};
+
+class scoped_restore_proof : public scoped_proof_mode {
+public:
+    scoped_restore_proof(ast_manager& m): scoped_proof_mode(m, m.proof_mode()) {}
+};
+
+
+
+#endif