renamed *`1.cs to *OfT.cs

src/Spectre.Console/Cli/CommandOfT.cs

@@ -0,0 +1,53 @@
+using System.Diagnostics;
+using System.Diagnostics.CodeAnalysis;
+using System.Threading.Tasks;
+
+namespace Spectre.Console.Cli
+{
+    /// <summary>
+    /// Base class for a command.
+    /// </summary>
+    /// <typeparam name="TSettings">The settings type.</typeparam>
+    /// <seealso cref="AsyncCommand{TSettings}"/>
+    public abstract class Command<TSettings> : ICommand<TSettings>
+        where TSettings : CommandSettings
+    {
+        /// <summary>
+        /// Validates the specified settings and remaining arguments.
+        /// </summary>
+        /// <param name="context">The command context.</param>
+        /// <param name="settings">The settings.</param>
+        /// <returns>The validation result.</returns>
+        public virtual ValidationResult Validate([NotNull] CommandContext context, [NotNull] TSettings settings)
+        {
+            return ValidationResult.Success();
+        }
+
+        /// <summary>
+        /// Executes the command.
+        /// </summary>
+        /// <param name="context">The command context.</param>
+        /// <param name="settings">The settings.</param>
+        /// <returns>An integer indicating whether or not the command executed successfully.</returns>
+        public abstract int Execute([NotNull] CommandContext context, [NotNull] TSettings settings);
+
+        /// <inheritdoc/>
+        ValidationResult ICommand.Validate(CommandContext context, CommandSettings settings)
+        {
+            return Validate(context, (TSettings)settings);
+        }
+
+        /// <inheritdoc/>
+        Task<int> ICommand.Execute(CommandContext context, CommandSettings settings)
+        {
+            Debug.Assert(settings is TSettings, "Command settings is of unexpected type.");
+            return Task.FromResult(Execute(context, (TSettings)settings));
+        }
+
+        /// <inheritdoc/>
+        Task<int> ICommand<TSettings>.Execute(CommandContext context, TSettings settings)
+        {
+            return Task.FromResult(Execute(context, settings));
+        }
+    }
+}