Move Spectre.Console.Cli to it's own package

src/Spectre.Console.Cli/PairDeconstructor.cs

@@ -0,0 +1,38 @@
+namespace Spectre.Console.Cli;
+
+/// <summary>
+/// Base class for a pair deconstructor.
+/// </summary>
+/// <typeparam name="TKey">The key type.</typeparam>
+/// <typeparam name="TValue">The value type.</typeparam>
+public abstract class PairDeconstructor<TKey, TValue> : IPairDeconstructor
+{
+    /// <summary>
+    /// Deconstructs the provided <see cref="string"/> into a pair.
+    /// </summary>
+    /// <param name="value">The string to deconstruct into a pair.</param>
+    /// <returns>The deconstructed pair.</returns>
+    protected abstract (TKey Key, TValue Value) Deconstruct(string? value);
+
+    /// <inheritdoc/>
+    (object? Key, object? Value) IPairDeconstructor.Deconstruct(ITypeResolver resolver, Type keyType, Type valueType, string? value)
+    {
+        if (!keyType.IsAssignableFrom(typeof(TKey)) || !valueType.IsAssignableFrom(typeof(TValue)))
+        {
+            throw new InvalidOperationException("Pair destructor is not compatible.");
+        }
+
+        return Deconstruct(value);
+    }
+}
+
+/// <summary>
+/// Base class for a pair deconstructor.
+/// </summary>
+/// <typeparam name="TKey">The key type.</typeparam>
+/// <typeparam name="TValue">The value type.</typeparam>
+/// <remarks>This class is misspelled, use <see cref="PairDeconstructor{TKey,TValue}"/> instead.</remarks>
+[Obsolete("Use PairDeconstructor instead")]
+public abstract class PairDeconstuctor<TKey, TValue> : PairDeconstructor<TKey, TValue>
+{
+}