z3-z3-4.13.0.src.api.dotnet.ASTMap.cs Maven / Gradle / Ivy

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/*++
Copyright (c) 2012 Microsoft Corporation

Module Name:

    ASTMap.cs

Abstract:

    Z3 Managed API: AST Maps

Author:

    Christoph Wintersteiger (cwinter) 2012-03-21

Notes:
    
--*/

using System.Diagnostics;
using System;

namespace Microsoft.Z3
{
    /// 
    /// Map from AST to AST
    /// 
    internal class ASTMap : Z3Object
    {
        /// 
        /// Checks whether the map contains the key .
        /// 
        /// An AST
        /// True if  is a key in the map, false otherwise.
        public bool Contains(AST k)
        {
            Debug.Assert(k != null);

            return 0 != Native.Z3_ast_map_contains(Context.nCtx, NativeObject, k.NativeObject);
        }

        /// 
        /// Finds the value associated with the key .
        /// 
        /// 
        /// This function signs an error when  is not a key in the map.
        /// 
        /// An AST    
        public AST Find(AST k)
        {
            Debug.Assert(k != null);

            return new AST(Context, Native.Z3_ast_map_find(Context.nCtx, NativeObject, k.NativeObject));
        }

        /// 
        /// Stores or replaces a new key/value pair in the map.
        /// 
        /// The key AST
        /// The value AST
        public void Insert(AST k, AST v)
        {
            Debug.Assert(k != null);
            Debug.Assert(v != null);

            Native.Z3_ast_map_insert(Context.nCtx, NativeObject, k.NativeObject, v.NativeObject);
        }

        /// 
        /// Erases the key  from the map.
        /// 
        /// An AST
        public void Erase(AST k)
        {
            Debug.Assert(k != null);

            Native.Z3_ast_map_erase(Context.nCtx, NativeObject, k.NativeObject);
        }

        /// 
        /// Removes all keys from the map.
        /// 
        public void Reset()
        {
            Native.Z3_ast_map_reset(Context.nCtx, NativeObject);
        }

        /// 
        /// The size of the map
        /// 
        public uint Size
        {
            get { return Native.Z3_ast_map_size(Context.nCtx, NativeObject); }
        }

        /// 
        /// The keys stored in the map.
        /// 
        public AST[] Keys
        {
            get
            {
                using ASTVector res = new ASTVector(Context, Native.Z3_ast_map_keys(Context.nCtx, NativeObject));
                return res.ToArray();
            }
        }

        /// 
        /// Retrieves a string representation of the map. 
        ///     
        public override string ToString()
        {
            return Native.Z3_ast_map_to_string(Context.nCtx, NativeObject);
        }

        #region Internal
        internal ASTMap(Context ctx, IntPtr obj)
            : base(ctx, obj)
        {
            Debug.Assert(ctx != null);
        }
        internal ASTMap(Context ctx)
            : base(ctx, Native.Z3_mk_ast_map(ctx.nCtx))
        {
            Debug.Assert(ctx != null);
        }

        internal override void IncRef(IntPtr o)
        {
            Native.Z3_ast_map_inc_ref(Context.nCtx, o);
        }

        internal override void DecRef(IntPtr o)
        {
            lock (Context)
            {
                if (Context.nCtx != IntPtr.Zero)
                    Native.Z3_ast_map_dec_ref(Context.nCtx, o);
            }
        }
        #endregion
    }
}