checkpoint

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

src/cmd_context/cmd_context_to_goal.cpp

@@ -0,0 +1,46 @@
+/*++
+Copyright (c) 2012 Microsoft Corporation
+
+Module Name:
+
+    cmd_context_to_goal.cpp
+
+Abstract:
+    Procedure for copying the assertions in the
+    command context to a goal object.
+
+Author:
+
+    Leonardo (leonardo) 2012-10-21
+
+Notes:
+
+--*/
+#include"cmd_context.h"
+#include"goal.h"
+
+/**
+   \brief Assert expressions from ctx into t.
+*/
+void assert_exprs_from(cmd_context const & ctx, goal & t) {
+    if (ctx.produce_proofs() && ctx.produce_unsat_cores()) 
+        throw cmd_exception("Frontend does not support simultaneous generation of proofs and unsat cores");
+    ast_manager & m = t.m();
+    bool proofs_enabled = t.proofs_enabled();
+    ptr_vector<expr>::const_iterator it  = ctx.begin_assertions();
+    ptr_vector<expr>::const_iterator end = ctx.end_assertions();
+    for (; it != end; ++it) {
+        t.assert_expr(*it, proofs_enabled ? m.mk_asserted(*it) : 0, 0);
+    }
+    if (ctx.produce_unsat_cores()) {
+        SASSERT(!ctx.produce_proofs());
+        it  = ctx.begin_assumptions();
+        end = ctx.end_assumptions();
+        for (; it != end; ++it) {
+            t.assert_expr(*it, 0, m.mk_leaf(*it));
+        }
+    }
+    else {
+        SASSERT(ctx.begin_assumptions() == ctx.end_assumptions());
+    }
+}