Add basic Tuple<T1, T2> type

14 files changed, 135 insertions, 4 deletions

diff --git a/LibGit2Sharp.Tests/LazyFixture.cs b/LibGit2Sharp.Tests/LazyFixture.cs
index 84862a12..f878b88b 100644
--- a/LibGit2Sharp.Tests/LazyFixture.cs
+++ b/LibGit2Sharp.Tests/LazyFixture.cs
@@ -1,5 +1,5 @@
 using System;
-using LibGit2Sharp.Core;
+using LibGit2Sharp.Core.Compat;
 using LibGit2Sharp.Tests.TestHelpers;
 using NUnit.Framework;
 
diff --git a/LibGit2Sharp.Tests/LibGit2Sharp.Tests.csproj b/LibGit2Sharp.Tests/LibGit2Sharp.Tests.csproj
index df538a91..eaba5a8e 100644
--- a/LibGit2Sharp.Tests/LibGit2Sharp.Tests.csproj
+++ b/LibGit2Sharp.Tests/LibGit2Sharp.Tests.csproj
@@ -64,6 +64,7 @@
     <Compile Include="TestHelpers\SignatureExtensions.cs" />
     <Compile Include="TestHelpers\TemporaryCloneOfTestRepo.cs" />
     <Compile Include="TreeFixture.cs" />
+    <Compile Include="TupleFixture.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\LibGit2Sharp\LibGit2Sharp.csproj">
diff --git a/LibGit2Sharp.Tests/TupleFixture.cs b/LibGit2Sharp.Tests/TupleFixture.cs
new file mode 100644
index 00000000..f909bcd0
--- /dev/null
+++ b/LibGit2Sharp.Tests/TupleFixture.cs
@@ -0,0 +1,56 @@
+using LibGit2Sharp.Core.Compat;
+using LibGit2Sharp.Tests.TestHelpers;
+using NUnit.Framework;
+
+namespace LibGit2Sharp.Tests
+{
+    [TestFixture]
+    public class TupleFixture
+    {
+        const int integer = 2;
+        const string stringy = "hello";
+
+        private readonly Tuple<int, string> sut = new Tuple<int, string>(integer, stringy);
+
+        [Test]
+        public void Properties()
+        {
+            sut.Item1.ShouldEqual(integer);
+            sut.Item2.ShouldEqual(stringy);
+        }
+
+        [Test]
+        public void GetHashCodeIsTheSame()
+        {
+            var sut2 = new Tuple<int, string>(integer, stringy);
+
+            sut.GetHashCode().ShouldEqual(sut2.GetHashCode());
+        }
+
+        [Test]
+        public void GetHashCodeIsDifferent()
+        {
+            var sut2 = new Tuple<int, string>(integer + 1, stringy);
+
+            sut.GetHashCode().ShouldNotEqual(sut2.GetHashCode());
+        }
+
+        [Test]
+        public void Equals()
+        {
+            var sut2 = new Tuple<int, string>(integer, stringy);
+
+            sut.Equals(sut2).ShouldBeTrue();
+            Equals(sut, sut2).ShouldBeTrue();
+        }
+
+        [Test]
+        public void NotEquals()
+        {
+            var sut2 = new Tuple<int, string>(integer + 1, stringy);
+
+            sut.Equals(sut2).ShouldBeFalse();
+            Equals(sut, sut2).ShouldBeFalse();
+        }
+    }
+}
diff --git a/LibGit2Sharp/Branch.cs b/LibGit2Sharp/Branch.cs
index ff1c73c9..745ef60a 100644
--- a/LibGit2Sharp/Branch.cs
+++ b/LibGit2Sharp/Branch.cs
@@ -2,6 +2,7 @@
 using System.Globalization;
 using System.Linq;
 using LibGit2Sharp.Core;
+using LibGit2Sharp.Core.Compat;
 
 namespace LibGit2Sharp
 {
diff --git a/LibGit2Sharp/Commit.cs b/LibGit2Sharp/Commit.cs
index b35aa366..c5bc5ec6 100644
--- a/LibGit2Sharp/Commit.cs
+++ b/LibGit2Sharp/Commit.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Runtime.InteropServices;
 using LibGit2Sharp.Core;
+using LibGit2Sharp.Core.Compat;
 
 namespace LibGit2Sharp
 {
diff --git a/LibGit2Sharp/Core/Lazy.cs b/LibGit2Sharp/Core/Compat/Lazy.cs
index f6bbe0cb..a4eb40d7 100644
--- a/LibGit2Sharp/Core/Lazy.cs
+++ b/LibGit2Sharp/Core/Compat/Lazy.cs
@@ -1,6 +1,6 @@
 using System;
 
-namespace LibGit2Sharp.Core
+namespace LibGit2Sharp.Core.Compat
 {
     /// <summary>
     ///   Provides support for lazy initialization.
diff --git a/LibGit2Sharp/Core/Compat/Tuple.cs b/LibGit2Sharp/Core/Compat/Tuple.cs
new file mode 100644
index 00000000..cc863032
--- /dev/null
+++ b/LibGit2Sharp/Core/Compat/Tuple.cs
@@ -0,0 +1,65 @@
+using System.Collections.Generic;
+
+namespace LibGit2Sharp.Core.Compat
+{
+    /// <summary>
+    ///   Represents a 2-tuple, or pair.
+    /// </summary>
+    /// <typeparam name = "T1">The type of the tuple's first component.</typeparam>
+    /// <typeparam name = "T2">The type of the tuple's second component.</typeparam>
+    public class Tuple<T1, T2>
+    {
+        private readonly KeyValuePair<T1, T2> kvp;
+
+        /// <summary>
+        ///   Initializes a new instance of the <see cref="Tuple{T1,T2}"/> class.
+        /// </summary>
+        /// <param name="item1">The value of the tuple's first component.</param>
+        /// <param name="item2">The value of the tuple's second component.</param>
+        public Tuple(T1 item1, T2 item2)
+        {
+            kvp = new KeyValuePair<T1, T2>(item1, item2);
+        }
+
+        /// <summary>
+        ///   Gets the value of the current <see cref = "Tuple{T1,T2}" /> object's second component.
+        /// </summary>
+        public T2 Item2
+        {
+            get { return kvp.Value; }
+        }
+
+        /// <summary>
+        ///   Gets the value of the current <see cref = "Tuple{T1,T2}" /> object's first component.
+        /// </summary>
+        public T1 Item1
+        {
+            get { return kvp.Key; }
+        }
+
+        /// <summary>
+        ///   Returns the hash code for the current <see cref = "Tuple{T1,T2}" /> object.
+        /// </summary>
+        /// <returns>A 32-bit signed integer hash code.</returns>
+        public override int GetHashCode()
+        {
+            return kvp.GetHashCode();
+        }
+
+        /// <summary>
+        ///   Returns a value that indicates whether the current <see cref = "Tuple{T1,T2}" /> object is equal to a specified object.
+        /// </summary>
+        /// <param name = "obj">The object to compare with this instance.</param>
+        /// <returns>true if the current instance is equal to the specified object; otherwise, false.</returns>
+        public override bool Equals(object obj)
+        {
+            if (!(obj is Tuple<T1, T2>))
+            {
+                return false;
+            }
+            return kvp.Equals(((Tuple<T1, T2>)obj).kvp);
+        }
+
+
+    }
+}
diff --git a/LibGit2Sharp/DirectReference.cs b/LibGit2Sharp/DirectReference.cs
index 17fb4bf8..a75fe6cc 100644
--- a/LibGit2Sharp/DirectReference.cs
+++ b/LibGit2Sharp/DirectReference.cs
@@ -1,4 +1,5 @@
 using LibGit2Sharp.Core;
+using LibGit2Sharp.Core.Compat;
 
 namespace LibGit2Sharp
 {
diff --git a/LibGit2Sharp/LibGit2Sharp.csproj b/LibGit2Sharp/LibGit2Sharp.csproj
index 8b29323b..923fd88d 100644
--- a/LibGit2Sharp/LibGit2Sharp.csproj
+++ b/LibGit2Sharp/LibGit2Sharp.csproj
@@ -52,6 +52,7 @@
     <Compile Include="CommitCollection.cs" />
     <Compile Include="Configuration.cs" />
     <Compile Include="ConfigurationLevel.cs" />
+    <Compile Include="Core\Compat\Tuple.cs" />
     <Compile Include="Core\EnumExtensions.cs" />
     <Compile Include="DetachedHead.cs" />
     <Compile Include="LibGit2Exception.cs" />
@@ -67,7 +68,7 @@
     <Compile Include="FileStatus.cs" />
     <Compile Include="Core\GitTime.cs" />
     <Compile Include="Core\IntPtrExtensions.cs" />
-    <Compile Include="Core\Lazy.cs" />
+    <Compile Include="Core\Compat\Lazy.cs" />
     <Compile Include="Core\NativeMethods.cs" />
     <Compile Include="Core\SafeHandleExtensions.cs" />
     <Compile Include="Core\ObjectSafeWrapper.cs" />
@@ -132,6 +133,6 @@
     <ItemGroup>
       <NativeBinaries Include="$(MSBuildProjectDirectory)\..\Lib\NativeBinaries\**\*.*" />
     </ItemGroup>
-	<Copy SourceFiles="@(NativeBinaries)" DestinationFiles="@(NativeBinaries->'$(OutputPath)NativeBinaries\%(RecursiveDir)%(Filename)%(Extension)')" SkipUnchangedFiles="true" />
+    <Copy SourceFiles="@(NativeBinaries)" DestinationFiles="@(NativeBinaries->'$(OutputPath)NativeBinaries\%(RecursiveDir)%(Filename)%(Extension)')" SkipUnchangedFiles="true" />
   </Target>
 </Project>
\ No newline at end of file
diff --git a/LibGit2Sharp/NamedReference.cs b/LibGit2Sharp/NamedReference.cs
index 8eb9035a..334bd880 100644
--- a/LibGit2Sharp/NamedReference.cs
+++ b/LibGit2Sharp/NamedReference.cs
@@ -1,5 +1,6 @@
 using System;
 using LibGit2Sharp.Core;
+using LibGit2Sharp.Core.Compat;
 
 namespace LibGit2Sharp
 {
diff --git a/LibGit2Sharp/Reference.cs b/LibGit2Sharp/Reference.cs
index 41276aff..eef973fd 100644
--- a/LibGit2Sharp/Reference.cs
+++ b/LibGit2Sharp/Reference.cs
@@ -2,6 +2,7 @@
 using System.Globalization;
 using System.Runtime.InteropServices;
 using LibGit2Sharp.Core;
+using LibGit2Sharp.Core.Compat;
 
 namespace LibGit2Sharp
 {
diff --git a/LibGit2Sharp/Repository.cs b/LibGit2Sharp/Repository.cs
index 335d21b4..99159a26 100644
--- a/LibGit2Sharp/Repository.cs
+++ b/LibGit2Sharp/Repository.cs
@@ -1,6 +1,7 @@
 using System;
 using System.IO;
 using LibGit2Sharp.Core;
+using LibGit2Sharp.Core.Compat;
 
 namespace LibGit2Sharp
 {
diff --git a/LibGit2Sharp/TagAnnotation.cs b/LibGit2Sharp/TagAnnotation.cs
index ac3cc37d..0c519fb2 100644
--- a/LibGit2Sharp/TagAnnotation.cs
+++ b/LibGit2Sharp/TagAnnotation.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Runtime.InteropServices;
 using LibGit2Sharp.Core;
+using LibGit2Sharp.Core.Compat;
 
 namespace LibGit2Sharp
 {
diff --git a/LibGit2Sharp/TreeEntry.cs b/LibGit2Sharp/TreeEntry.cs
index bde6b2e5..3fc488c0 100755
--- a/LibGit2Sharp/TreeEntry.cs
+++ b/LibGit2Sharp/TreeEntry.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Runtime.InteropServices;
 using LibGit2Sharp.Core;
+using LibGit2Sharp.Core.Compat;
 
 namespace LibGit2Sharp
 {