refactor!: remove DateOnly.Deconstruct

CHANGELOG.md

@@ -20,8 +20,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Removed
 
+- X10D: Removed `DateOnly.Deconstruct` due to conflict with
+[`System.DateOnly.Deconstruct`](https://learn.microsoft.com/en-us/dotnet/api/system.datetime.deconstruct?view=net-8.0).
 - X10D: Removed `Span<T>.Split` for .NET 9.0 target due to conflicts with
-[`System.MemoryExtensions.Split`](https://learn.microsoft.com/en-us/dotnet/api/system.memoryextensions.split?view=net-8.0).
+[`System.MemoryExtensions.Split`](https://learn.microsoft.com/en-us/dotnet/api/system.memoryextensions.split?view=net-9.0).
 
 ## [4.0.0] - 2024-06-12
 

X10D.Tests/src/Time/DateOnlyTests.cs

@@ -39,30 +39,6 @@ public void Age_ShouldBe18_Given31December1991Birthday_And31December2017Date()
         Assert.That(age, Is.EqualTo(18));
     }
 
-    [Test]
-    public void Deconstruct_ShouldDeconstruct_GivenDateOnly()
-    {
-        var date = new DateOnly(2017, 12, 31);
-
-        date.Deconstruct(out int year, out int month, out int day);
-
-        Assert.That(year, Is.EqualTo(2017));
-        Assert.That(month, Is.EqualTo(12));
-        Assert.That(day, Is.EqualTo(31));
-    }
-
-    [Test]
-    public void Deconstruct_ShouldDeconstructToTuple_GivenDateOnly()
-    {
-        var date = new DateOnly(2017, 12, 31);
-
-        (int year, int month, int day) = date;
-
-        Assert.That(year, Is.EqualTo(2017));
-        Assert.That(month, Is.EqualTo(12));
-        Assert.That(day, Is.EqualTo(31));
-    }
-
     [Test]
     public void First_ShouldBeSaturday_Given1Jan2000()
     {

X10D/src/Time/DateOnlyExtensions.cs

@@ -39,20 +39,6 @@ public static int Age(this DateOnly value, DateOnly referenceDate)
         return value.ToDateTime(default).Age(referenceDate.ToDateTime(default));
     }
 
-    /// <summary>
-    ///     Deconstructs the current <see cref="DateOnly" /> into its year, month, and day.
-    /// </summary>
-    /// <param name="value">The date to deconstruct.</param>
-    /// <param name="year">When this method returns, contains the year.</param>
-    /// <param name="month">When this method returns, contains the month.</param>
-    /// <param name="day">When this method returns, contains the day.</param>
-    public static void Deconstruct(this DateOnly value, out int year, out int month, out int day)
-    {
-        year = value.Year;
-        month = value.Month;
-        day = value.Day;
-    }
-
     /// <summary>
     ///     Gets a date representing the first occurence of a specified day of the week in the current month.
     /// </summary>