Z3 sources

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

lib/assertion_set_rewriter.h

@@ -0,0 +1,56 @@
+/*++
+Copyright (c) 2011 Microsoft Corporation
+
+Module Name:
+
+    assertion_set_rewriter.h
+
+Abstract:
+
+    Apply rewriting rules in an assertion set.
+
+Author:
+
+    Leonardo (leonardo) 2011-04-22
+
+Notes:
+
+--*/
+#ifndef _ASSERTION_SET_REWRITER_H_
+#define _ASSERTION_SET_REWRITER_H_
+
+#include"assertion_set_strategy.h"
+
+class assertion_set_rewriter : public assertion_set_strategy {
+    struct     imp;
+    imp *      m_imp;
+    params_ref m_params;
+public:
+    assertion_set_rewriter(ast_manager & m, params_ref const & ref = params_ref());
+    virtual ~assertion_set_rewriter();
+
+    virtual void updt_params(params_ref const & p);
+    static void get_param_descrs(param_descrs & r);
+    virtual void collect_param_descrs(param_descrs & r) { get_param_descrs(r); }
+    
+    /**
+       \brief Apply rewriting/simplification rules on the assertion set \c s.
+    */
+    void operator()(assertion_set & s);
+    
+    virtual void operator()(assertion_set & s, model_converter_ref & mc) {
+        operator()(s);
+        mc = 0;
+    }
+
+    virtual void cleanup();
+
+    unsigned get_num_steps() const;
+    virtual void set_cancel(bool f);
+};
+
+inline as_st * mk_simplifier(ast_manager & m, params_ref const & p = params_ref()) {
+    return clean(alloc(assertion_set_rewriter, m, p));
+}
+
+#endif