more work on interpolation

src/interp/foci2stub/foci2.h

@@ -0,0 +1,75 @@
+/*++
+Copyright (c) 2011 Microsoft Corporation
+
+Module Name:
+
+    foci2.h
+
+Abstract:
+
+   An interface class for foci2.   
+
+Author:
+
+    Ken McMillan (kenmcmil)
+
+Revision History:
+
+--*/
+
+#ifndef FOCI2_H
+#define FOCI2_H
+
+#include <vector>
+#include <string>
+
+#ifdef WIN32
+#define FOCI2_EXPORT __declspec(dllexport)
+#else
+#define FOCI2_EXPORT __attribute__ ((visibility ("default")))
+#endif
+
+class foci2 {
+ public:
+  virtual ~foci2(){}
+
+  typedef int ast;
+  typedef int symb;
+
+  /** Built-in operators */
+  enum ops {
+    And = 0, Or, Not, Iff, Ite, Equal, Plus, Times, Floor, Leq, Div, Bool, Int, Array, Tsym, Fsym, Forall, Exists, Distinct, LastOp
+  };
+  
+  virtual symb mk_func(const std::string &s) = 0;
+  virtual symb mk_pred(const std::string &s) = 0;
+  virtual ast mk_op(ops op, const std::vector<ast> args) = 0;
+  virtual ast mk_op(ops op, ast) = 0;
+  virtual ast mk_op(ops op, ast, ast) = 0;
+  virtual ast mk_op(ops op, ast, ast, ast) = 0;
+  virtual ast mk_int(const std::string &) = 0;
+  virtual ast mk_rat(const std::string &) = 0;
+  virtual ast mk_true() = 0;
+  virtual ast mk_false() = 0;
+  virtual ast mk_app(symb,const std::vector<ast> args) = 0;
+  
+  virtual bool get_func(ast, symb &) = 0;
+  virtual bool get_pred(ast, symb &) = 0;
+  virtual bool get_op(ast, ops &) = 0;
+  virtual bool get_true(ast id) = 0;
+  virtual bool get_false(ast id) = 0;
+  virtual bool get_int(ast id, std::string &res) = 0;
+  virtual bool get_rat(ast id, std::string &res) = 0;
+  virtual const std::string &get_symb(symb) = 0;
+  
+  virtual int get_num_args(ast) = 0;
+  virtual ast get_arg(ast, int) = 0;
+  
+  virtual void show_ast(ast) = 0;
+  
+  virtual bool interpolate(const std::vector<ast> &frames, std::vector<ast> &itps, std::vector<int> parents) = 0;
+
+  FOCI2_EXPORT static foci2 *create(const std::string &);
+};
+
+#endif