other components

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

Microsoft.Z3/ApplyResult.cs

@@ -0,0 +1,111 @@
+/*++
+Copyright (c) 2012 Microsoft Corporation
+
+Module Name:
+
+    ApplyResult.cs
+
+Abstract:
+
+    Z3 Managed API: Result object for tactic applications
+
+Author:
+
+    Christoph Wintersteiger (cwinter) 2012-03-21
+
+Notes:
+    
+--*/
+
+using System;
+using System.Diagnostics.Contracts;
+
+namespace Microsoft.Z3
+{
+    /// <summary>
+    /// ApplyResult objects represent the result of an application of a 
+    /// tactic to a goal. It contains the subgoals that were produced.
+    /// </summary>
+    [ContractVerification(true)]
+    public class ApplyResult : Z3Object
+    {
+        /// <summary>
+        /// The number of Subgoals.
+        /// </summary>
+        public uint NumSubgoals
+        {
+            get { return Native.Z3_apply_result_get_num_subgoals(Context.nCtx, NativeObject); }
+        }
+
+        /// <summary>
+        /// Retrieves the subgoals from the ApplyResult.
+        /// </summary>
+        public Goal[] Subgoals
+        {
+            get
+            {
+              Contract.Ensures(Contract.Result<Goal[]>() != null);
+              Contract.Ensures(Contract.Result<Goal[]>().Length == this.NumSubgoals);
+
+                uint n = NumSubgoals;
+                Goal[] res = new Goal[n];
+                for (uint i = 0; i < n; i++)
+                    res[i] = new Goal(Context, Native.Z3_apply_result_get_subgoal(Context.nCtx, NativeObject, i));
+                return res;
+            }
+        }
+
+        /// <summary>
+        /// Convert a model for the subgoal <paramref name="i"/> into a model for the original 
+        /// goal <c>g</c>, that the ApplyResult was obtained from. 
+        /// </summary>
+        /// <returns>A model for <c>g</c></returns>
+        public Model ConvertModel(uint i, Model m)
+        {
+            Contract.Requires(m != null);
+            Contract.Ensures(Contract.Result<Model>() != null);
+
+            return new Model(Context, Native.Z3_apply_result_convert_model(Context.nCtx, NativeObject, i, m.NativeObject));
+        }
+
+        /// <summary>
+        /// A string representation of the ApplyResult.
+        /// </summary>
+        public override string ToString()
+        {
+            return Native.Z3_apply_result_to_string(Context.nCtx, NativeObject);
+        }
+
+        #region Internal
+        internal ApplyResult(Context ctx, IntPtr obj) : base(ctx, obj) 
+        {
+            Contract.Requires(ctx != null);
+        }
+
+        internal class DecRefQueue : Z3.DecRefQueue
+        {
+            public override void IncRef(Context ctx, IntPtr obj)
+            {
+                Native.Z3_apply_result_inc_ref(ctx.nCtx, obj);
+            }
+
+            public override void DecRef(Context ctx, IntPtr obj)
+            {
+                Native.Z3_apply_result_dec_ref(ctx.nCtx, obj);
+            }
+        };        
+
+        internal override void IncRef(IntPtr o)
+        {
+            Context.ApplyResult_DRQ.IncAndClear(Context, o);
+            base.IncRef(o);
+        }
+
+        internal override void DecRef(IntPtr o)
+        {
+            Context.ApplyResult_DRQ.Add(o);
+            base.DecRef(o);
+        }
+        #endregion
+    }
+}