[Move] Part-7 Classes into Different Library - Neo.Extensions

src/Neo.CLI/CLI/MainService.Network.cs

@@ -11,6 +11,7 @@
 
 using Akka.Actor;
 using Neo.ConsoleService;
+using Neo.Extensions;
 using Neo.IO;
 using Neo.Json;
 using Neo.Network.P2P;

src/Neo.Extensions/AssemblyExtensions.cs

@@ -0,0 +1,23 @@
+// Copyright (C) 2015-2024 The Neo Project.
+//
+// AssemblyExtensions.cs file belongs to the neo project and is free
+// software distributed under the MIT software license, see the
+// accompanying file LICENSE in the main directory of the
+// repository or http://www.opensource.org/licenses/mit-license.php
+// for more details.
+//
+// Redistribution and use in source and binary forms with or without
+// modifications are permitted.
+
+using System.Reflection;
+
+namespace Neo.Extensions
+{
+    public static class AssemblyExtensions
+    {
+        public static string GetVersion(this Assembly assembly)
+        {
+            return assembly.GetName().Version!.ToString(3);
+        }
+    }
+}

src/Neo.Extensions/Collections/HashSetExtensions.cs

@@ -0,0 +1,42 @@
+// Copyright (C) 2015-2024 The Neo Project.
+//
+// HashSetExtensions.cs file belongs to the neo project and is free
+// software distributed under the MIT software license, see the
+// accompanying file LICENSE in the main directory of the
+// repository or http://www.opensource.org/licenses/mit-license.php
+// for more details.
+//
+// Redistribution and use in source and binary forms with or without
+// modifications are permitted.
+
+using System.Collections.Generic;
+
+namespace Neo.Extensions
+{
+    public static class HashSetExtensions
+    {
+        public static void Remove<T>(this HashSet<T> set, ISet<T> other)
+        {
+            if (set.Count > other.Count)
+            {
+                set.ExceptWith(other);
+            }
+            else
+            {
+                set.RemoveWhere(u => other.Contains(u));
+            }
+        }
+
+        public static void Remove<T, V>(this HashSet<T> set, IReadOnlyDictionary<T, V> other)
+        {
+            if (set.Count > other.Count)
+            {
+                set.ExceptWith(other.Keys);
+            }
+            else
+            {
+                set.RemoveWhere(u => other.ContainsKey(u));
+            }
+        }
+    }
+}

src/Neo.Extensions/DateTimeExtensions.cs

@@ -0,0 +1,38 @@
+// Copyright (C) 2015-2024 The Neo Project.
+//
+// DateTimeExtensions.cs file belongs to the neo project and is free
+// software distributed under the MIT software license, see the
+// accompanying file LICENSE in the main directory of the
+// repository or http://www.opensource.org/licenses/mit-license.php
+// for more details.
+//
+// Redistribution and use in source and binary forms with or without
+// modifications are permitted.
+
+using System;
+
+namespace Neo.Extensions
+{
+    public static class DateTimeExtensions
+    {
+        /// <summary>
+        /// Converts a <see cref="DateTime"/> to timestamp.
+        /// </summary>
+        /// <param name="time">The <see cref="DateTime"/> to convert.</param>
+        /// <returns>The converted timestamp.</returns>
+        public static uint ToTimestamp(this DateTime time)
+        {
+            return (uint)new DateTimeOffset(time.ToUniversalTime()).ToUnixTimeSeconds();
+        }
+
+        /// <summary>
+        /// Converts a <see cref="DateTime"/> to timestamp in milliseconds.
+        /// </summary>
+        /// <param name="time">The <see cref="DateTime"/> to convert.</param>
+        /// <returns>The converted timestamp.</returns>
+        public static ulong ToTimestampMS(this DateTime time)
+        {
+            return (ulong)new DateTimeOffset(time.ToUniversalTime()).ToUnixTimeMilliseconds();
+        }
+    }
+}

src/Neo.Extensions/Net/IpAddressExtensions.cs

@@ -0,0 +1,40 @@
+// Copyright (C) 2015-2024 The Neo Project.
+//
+// IpAddressExtensions.cs file belongs to the neo project and is free
+// software distributed under the MIT software license, see the
+// accompanying file LICENSE in the main directory of the
+// repository or http://www.opensource.org/licenses/mit-license.php
+// for more details.
+//
+// Redistribution and use in source and binary forms with or without
+// modifications are permitted.
+
+using System.Net;
+
+namespace Neo.Extensions
+{
+    public static class IpAddressExtensions
+    {
+        /// <summary>
+        /// Checks if address is IPv4 Mapped to IPv6 format, if so, Map to IPv4.
+        /// Otherwise, return current address.
+        /// </summary>
+        public static IPAddress UnMap(this IPAddress address)
+        {
+            if (address.IsIPv4MappedToIPv6)
+                address = address.MapToIPv4();
+            return address;
+        }
+
+        /// <summary>
+        /// Checks if IPEndPoint is IPv4 Mapped to IPv6 format, if so, unmap to IPv4.
+        /// Otherwise, return current endpoint.
+        /// </summary>
+        public static IPEndPoint UnMap(this IPEndPoint endPoint)
+        {
+            if (!endPoint.Address.IsIPv4MappedToIPv6)
+                return endPoint;
+            return new IPEndPoint(endPoint.Address.UnMap(), endPoint.Port);
+        }
+    }
+}

src/Neo.Extensions/RandomExtensions.cs

@@ -0,0 +1,34 @@
+// Copyright (C) 2015-2024 The Neo Project.
+//
+// RandomExtensions.cs file belongs to the neo project and is free
+// software distributed under the MIT software license, see the
+// accompanying file LICENSE in the main directory of the
+// repository or http://www.opensource.org/licenses/mit-license.php
+// for more details.
+//
+// Redistribution and use in source and binary forms with or without
+// modifications are permitted.
+
+using System;
+using System.Numerics;
+
+namespace Neo.Extensions
+{
+    public static class RandomExtensions
+    {
+        public static BigInteger NextBigInteger(this Random rand, int sizeInBits)
+        {
+            if (sizeInBits < 0)
+                throw new ArgumentException("sizeInBits must be non-negative");
+            if (sizeInBits == 0)
+                return 0;
+            Span<byte> b = stackalloc byte[sizeInBits / 8 + 1];
+            rand.NextBytes(b);
+            if (sizeInBits % 8 == 0)
+                b[^1] = 0;
+            else
+                b[^1] &= (byte)((1 << sizeInBits % 8) - 1);
+            return new BigInteger(b);
+        }
+    }
+}

src/Neo.Extensions/StringExtensions.cs

@@ -0,0 +1,47 @@
+// Copyright (C) 2015-2024 The Neo Project.
+//
+// StringExtensions.cs file belongs to the neo project and is free
+// software distributed under the MIT software license, see the
+// accompanying file LICENSE in the main directory of the
+// repository or http://www.opensource.org/licenses/mit-license.php
+// for more details.
+//
+// Redistribution and use in source and binary forms with or without
+// modifications are permitted.
+
+using System;
+using System.Globalization;
+
+namespace Neo.Extensions
+{
+    public static class StringExtensions
+    {
+        /// <summary>
+        /// Converts a hex <see cref="string"/> to byte array.
+        /// </summary>
+        /// <param name="value">The hex <see cref="string"/> to convert.</param>
+        /// <returns>The converted byte array.</returns>
+        public static byte[] HexToBytes(this string value)
+        {
+            if (value == null || value.Length == 0)
+                return [];
+            if (value.Length % 2 == 1)
+                throw new FormatException();
+            var result = new byte[value.Length / 2];
+            for (var i = 0; i < result.Length; i++)
+                result[i] = byte.Parse(value.Substring(i * 2, 2), NumberStyles.AllowHexSpecifier);
+            return result;
+        }
+
+        /// <summary>
+        /// Gets the size of the specified <see cref="string"/> encoded in variable-length encoding.
+        /// </summary>
+        /// <param name="value">The specified <see cref="string"/>.</param>
+        /// <returns>The size of the <see cref="string"/>.</returns>
+        public static int GetVarSize(this string value)
+        {
+            var size = Utility.StrictUTF8.GetByteCount(value);
+            return UnsafeData.GetVarSize(size) + size;
+        }
+    }
+}

src/Neo.Extensions/UnsafeData.cs

@@ -0,0 +1,31 @@
+// Copyright (C) 2015-2024 The Neo Project.
+//
+// UnsafeData.cs file belongs to the neo project and is free
+// software distributed under the MIT software license, see the
+// accompanying file LICENSE in the main directory of the
+// repository or http://www.opensource.org/licenses/mit-license.php
+// for more details.
+//
+// Redistribution and use in source and binary forms with or without
+// modifications are permitted.
+
+namespace Neo.Extensions
+{
+    public static class UnsafeData
+    {
+        /// <summary>
+        /// Gets the size of variable-length of the data.
+        /// </summary>
+        /// <param name="value">The length of the data.</param>
+        /// <returns>The size of variable-length of the data.</returns>
+        public static int GetVarSize(int value)
+        {
+            if (value < 0xFD)
+                return sizeof(byte);
+            else if (value <= 0xFFFF)
+                return sizeof(byte) + sizeof(ushort);
+            else
+                return sizeof(byte) + sizeof(uint);
+        }
+    }
+}

src/Neo.GUI/GUI/CreateMultiSigContractDialog.cs

@@ -10,6 +10,7 @@
 // modifications are permitted.
 
 using Neo.Cryptography.ECC;
+using Neo.Extensions;
 using Neo.SmartContract;
 using Neo.Wallets;
 using System;

src/Neo.GUI/GUI/ElectionDialog.cs

@@ -10,7 +10,7 @@
 // modifications are permitted.
 
 using Neo.Cryptography.ECC;
-using Neo.IO;
+using Neo.Extensions;
 using Neo.SmartContract.Native;
 using Neo.VM;
 using System;

src/Neo.GUI/GUI/ImportCustomContractDialog.cs

@@ -9,6 +9,7 @@
 // Redistribution and use in source and binary forms with or without
 // modifications are permitted.
 
+using Neo.Extensions;
 using Neo.SmartContract;
 using Neo.Wallets;
 using System;

src/Neo.GUI/GUI/ParametersEditor.cs

@@ -10,6 +10,7 @@
 // modifications are permitted.
 
 using Neo.Cryptography.ECC;
+using Neo.Extensions;
 using Neo.SmartContract;
 using System;
 using System.Collections.Generic;

src/Neo.GUI/GUI/VotingDialog.cs

@@ -10,7 +10,7 @@
 // modifications are permitted.
 
 using Neo.Cryptography.ECC;
-using Neo.IO;
+using Neo.Extensions;
 using Neo.SmartContract;
 using Neo.SmartContract.Native;
 using Neo.VM;

src/Neo.IO/Caching/HashSetCache.cs

@@ -15,7 +15,7 @@
 
 namespace Neo.IO.Caching
 {
-    class HashSetCache<T> : IReadOnlyCollection<T> where T : IEquatable<T>
+    internal class HashSetCache<T> : IReadOnlyCollection<T> where T : IEquatable<T>
     {
         /// <summary>
         /// Sets where the Hashes are stored

src/Neo.IO/Neo.IO.csproj

@@ -12,7 +12,8 @@
   <ItemGroup>
     <InternalsVisibleTo Include="Neo" />
     <InternalsVisibleTo Include="Neo.UnitTests" />
-    <InternalsVisibleTo Include="$(AssemblyName).Tests" />
+    <InternalsVisibleTo Include="Neo.Extensions" />
+    <InternalsVisibleTo Include="Neo.Extensions.Tests" />
   </ItemGroup>
 
   <ItemGroup>

src/Neo/Cryptography/ECC/ECCurve.cs

@@ -9,6 +9,7 @@
 // Redistribution and use in source and binary forms with or without
 // modifications are permitted.
 
+using Neo.Extensions;
 using System.Globalization;
 using System.Numerics;
 

src/Neo/Cryptography/Helper.cs

@@ -9,7 +9,7 @@
 // Redistribution and use in source and binary forms with or without
 // modifications are permitted.
 
-using Neo.IO;
+using Neo.Extensions;
 using Neo.Network.P2P.Payloads;
 using Neo.Wallets;
 using Org.BouncyCastle.Crypto.Digests;

src/Neo/Cryptography/MerkleTree.cs

@@ -9,7 +9,7 @@
 // Redistribution and use in source and binary forms with or without
 // modifications are permitted.
 
-using Neo.IO;
+using Neo.Extensions;
 using System;
 using System.Collections;
 using System.Collections.Generic;