checkpoint

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

src/tactic/extension_model_converter.h

@@ -0,0 +1,57 @@
+/*++
+Copyright (c) 2011 Microsoft Corporation
+
+Module Name:
+
+    extension_model_converter.h
+
+Abstract:
+
+    Model converter that introduces new interpretations into a model.
+    It used to be called elim_var_model_converter
+
+Author:
+
+    Leonardo (leonardo) 2011-10-21
+
+Notes:
+
+--*/
+#ifndef _EXTENSION_MODEL_CONVERTER_H_
+#define _EXTENSION_MODEL_CONVERTER_H_
+
+#include"ast.h"
+#include"model_converter.h"
+
+class model_evaluator;
+
+class extension_model_converter : public model_converter {
+    func_decl_ref_vector  m_vars;
+    expr_ref_vector       m_defs;
+    model_evaluator *     m_eval;
+    struct set_eval;
+public:    
+    extension_model_converter(ast_manager & m):m_vars(m), m_defs(m), m_eval(0) {
+    }
+    
+    virtual ~extension_model_converter();
+    
+    ast_manager & m() const { return m_vars.get_manager(); }
+    
+    virtual void operator()(model_ref & md, unsigned goal_idx);
+
+    virtual void cancel();
+
+    virtual void display(std::ostream & out);
+
+    // register a variable that was eliminated
+    void insert(func_decl * v, expr * def) {
+        m_vars.push_back(v);
+        m_defs.push_back(def);
+    }
+
+    virtual model_converter * translate(ast_translation & translator);
+};
+
+
+#endif