1 files changed, 58 insertions, 0 deletions
diff --git a/src/core/expr_manager.h b/src/core/expr_manager.h
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--- /dev/null
+++ b/src/core/expr_manager.h
@@ -0,0 +1,58 @@
+/*********************                                           -*- C++ -*-  */
+/** expr_manager.h
+ ** This file is part of the CVC4 prototype.
+ ** Copyright (c) 2009 The Analysis of Computer Systems Group (ACSys)
+ ** Courant Institute of Mathematical Sciences
+ ** New York University
+ ** See the file COPYING in the top-level source directory for licensing
+ ** information.
+ **
+ **/
+
+#ifndef __CVC4_EXPR_MANAGER_H
+#define __CVC4_EXPR_MANAGER_H
+
+#include <vector>
+#include "cvc4_expr.h"
+#include "core/kind.h"
+
+namespace CVC4 {
+
+class ExprManager {
+  static __thread ExprManager* s_current;
+
+public:
+  static ExprManager* currentEM() { return s_current; }
+
+  // general expression-builders
+  Expr mkExpr(Kind kind);
+  Expr mkExpr(Kind kind, Expr child1);
+  Expr mkExpr(Kind kind, Expr child1, Expr child2);
+  Expr mkExpr(Kind kind, Expr child1, Expr child2, Expr child3);
+  Expr mkExpr(Kind kind, Expr child1, Expr child2, Expr child3, Expr child4);
+  Expr mkExpr(Kind kind, Expr child1, Expr child2, Expr child3, Expr child4, Expr child5);
+  // N-ary version
+  Expr mkExpr(Kind kind, std::vector<Expr> children);
+
+  // TODO: these use the current EM (but must be renamed)
+  /*
+  static Expr mkExpr(Kind kind)
+  { currentEM()->mkExpr(kind); }
+  static Expr mkExpr(Kind kind, Expr child1);
+  { currentEM()->mkExpr(kind, child1); }
+  static Expr mkExpr(Kind kind, Expr child1, Expr child2);
+  { currentEM()->mkExpr(kind, child1, child2); }
+  static Expr mkExpr(Kind kind, Expr child1, Expr child2, Expr child3);
+  { currentEM()->mkExpr(kind, child1, child2, child3); }
+  static Expr mkExpr(Kind kind, Expr child1, Expr child2, Expr child3, Expr child4);
+  { currentEM()->mkExpr(kind, child1, child2, child3, child4); }
+  static Expr mkExpr(Kind kind, Expr child1, Expr child2, Expr child3, Expr child4, Expr child5);
+  { currentEM()->mkExpr(kind, child1, child2, child3, child4, child5); }
+  */
+
+  // do we want a varargs one?  perhaps not..
+};
+
+} /* CVC4 namespace */
+
+#endif /* __CVC4_EXPR_MANAGER_H */