checkpoint

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

src/framework/goal_shared_occs.h

@@ -0,0 +1,45 @@
+/*++
+Copyright (c) 2011 Microsoft Corporation
+
+Module Name:
+
+    goal_shared_occs.h
+
+Abstract:
+
+    Functor for computing the set of shared occurrences in a goal.
+
+Author:
+
+    Leonardo de Moura (leonardo) 2011-12-28
+
+Revision History:
+
+--*/
+#ifndef _GOAL_SHARED_OCCS_H_
+#define _GOAL_SHARED_OCCS_H_
+
+#include"goal.h"
+#include"shared_occs.h"
+
+/**
+   \brief Functor for computing the set of shared occurrences in a goal.
+   
+   It is essentially a wrapper for shared_occs functor.
+*/
+class goal_shared_occs {
+    shared_occs m_occs;
+public:
+    goal_shared_occs(ast_manager & m, bool track_atomic = false, bool visit_quantifiers = true, bool visit_patterns = false):
+        m_occs(m, track_atomic, visit_quantifiers, visit_patterns) {
+    }
+    void operator()(goal const & s);
+    bool is_shared(expr * t) { return m_occs.is_shared(t); }
+    unsigned num_shared() const { return m_occs.num_shared(); }
+    void reset() { return m_occs.reset(); }
+    void cleanup() { return m_occs.cleanup(); }
+    void display(std::ostream & out, ast_manager & m) const { m_occs.display(out, m); }
+};
+
+
+#endif