checkpoint

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

src/muz_qe/dl_cmds.h

@@ -0,0 +1,47 @@
+/*++
+Copyright (c) 2011 Microsoft Corporation
+
+Module Name:
+
+    dl_cmds.h
+
+Abstract:
+    Datalog commands for SMT2 front-end.
+
+Author:
+
+    Leonardo (leonardo) 2011-03-28
+
+Notes:
+
+--*/
+#ifndef _DL_CMDS_H_
+#define _DL_CMDS_H_
+
+class cmd;
+class cmd_context;
+
+void install_dl_cmds(cmd_context & ctx);
+
+namespace datalog {
+
+    class context;
+
+    /**
+    Create a command for declaring relations which is connected to 
+    a particular datalog context.
+
+    Caller must ensure the returned object is deallocated (e.g. by passing it to a cmd_context).
+    */
+    cmd * mk_declare_rel_cmd(context& dctx);
+
+    /**
+       Declare a constant as a universal/existential variable.
+       It is implicitly existentially or universally quantified
+       by the rules.
+    */
+    cmd * mk_declare_var_cmd(context& dctx);
+
+}
+
+#endif