na

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

src/ast/value_generator.h

@@ -0,0 +1,39 @@
+/*++
+  Copyright (c) 2020 Microsoft Corporation
+
+  Module Name:
+
+   value_generatorr.h
+
+  Abstract:
+   
+    Generate mostly different values using index as seed.
+
+  Author:
+
+    Nikolaj Bjorner 2020-04-25
+  
+--*/
+
+#pragma once
+
+#include "util/scoped_ptr_vector.h"
+#include "ast/ast.h"
+
+
+class value_generator_core {
+ public:        
+    virtual ~value_generator_core() {}
+    virtual family_id get_fid() const = 0;
+    virtual expr_ref get_value(sort* s, unsigned index) = 0;
+};
+
+class value_generator {
+    ast_manager& m;
+    scoped_ptr_vector<value_generator_core> m_plugins;
+    void add_plugin(value_generator_core* g);
+    void init();
+ public:
+    value_generator(ast_manager& m);
+    expr_ref get_value(sort* s, unsigned index);    
+};