Enable ImplicitUsings

src/Cocona.Core/Application/CoconaAppContextAccessor.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
-namespace Cocona.Application
+namespace Cocona.Application
 {
     public interface ICoconaAppContextAccessor
     {

src/Cocona.Core/Application/CoconaApplicationMetadataProvider.cs

@@ -1,5 +1,4 @@
 using System.Diagnostics;
-using System.IO;
 using System.Reflection;
 
 namespace Cocona.Application

src/Cocona.Core/Application/CoconaConsoleProvider.cs

@@ -1,8 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.IO;
-using System.Text;
-
 namespace Cocona.Application
 {
     public class CoconaConsoleProvider : ICoconaConsoleProvider

src/Cocona.Core/Application/ICoconaConsoleProvider.cs

@@ -1,6 +1,4 @@
-using System.IO;
-
-namespace Cocona.Application
+namespace Cocona.Application
 {
     public interface ICoconaConsoleProvider
     {

src/Cocona.Core/Application/ICoconaInstanceActivator.cs

@@ -1,5 +1,3 @@
-using System;
-
 namespace Cocona.Application
 {
     public interface ICoconaInstanceActivator

src/Cocona.Core/Application/ICoconaServiceProviderIsService.cs

@@ -1,9 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
 namespace Cocona.Application
 {
     public interface ICoconaServiceProviderIsService

src/Cocona.Core/Application/ICoconaServiceProviderScopeSupport.cs

@@ -1,9 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
 namespace Cocona.Application
 {
     public interface ICoconaServiceProviderScopeSupport

src/Cocona.Core/ArgumentAttribute.cs

@@ -1,7 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
 namespace Cocona
 {
     /// <summary>

src/Cocona.Core/AssemblyInfo.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
 using System.Runtime.CompilerServices;
-using System.Text;
 
 [assembly: InternalsVisibleTo(
     "Cocona.Test, PublicKey=" +

src/Cocona.Core/Builder/CoconaAppBuilderExtensions.cs

@@ -1,9 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
 using Cocona.Builder;
 
 // ReSharper disable once CheckNamespace

src/Cocona.Core/Builder/CoconaCommandsBuilder.cs

@@ -1,11 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using System.Text;
-using System.Threading.Tasks;
-using Cocona.Builder.Metadata;
-using Cocona.Command;
 using Cocona.Filters;
 
 namespace Cocona.Builder

src/Cocona.Core/Builder/CommandConventionBuilder.cs

@@ -1,5 +1,3 @@
-using System;
-using System.Collections.Generic;
 using Cocona.Internal;
 
 namespace Cocona.Builder

src/Cocona.Core/Builder/CommandConventionBuilderExtensions.cs

@@ -1,8 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Cocona.Builder;
 using Cocona.Builder.Metadata;
 using Cocona.Filters;

src/Cocona.Core/Builder/CommandTypeConventionBuilder.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
-
-namespace Cocona.Builder
+namespace Cocona.Builder
 {
     public class CommandTypeConventionBuilder
     {

src/Cocona.Core/Builder/DelegateCommandData.cs

@@ -1,6 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Reflection;
 
 namespace Cocona.Builder

src/Cocona.Core/Builder/ICoconaAppBuilder.cs

@@ -1,10 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading;
-using System.Threading.Tasks;
-
 namespace Cocona.Builder
 {
     public interface ICoconaAppBuilder : ICoconaCommandsBuilder

src/Cocona.Core/Builder/ICommandBuilder.cs

@@ -1,6 +1,4 @@
-using System.Collections.Generic;
-
-namespace Cocona.Builder
+namespace Cocona.Builder
 {
     public interface ICommandBuilder
     {

src/Cocona.Core/Builder/ICommandData.cs

@@ -1,10 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using System.Text;
-using System.Threading.Tasks;
-
 namespace Cocona.Builder
 {
     public interface ICommandData

src/Cocona.Core/Builder/Metadata/CommandAliasesMetadata.cs

@@ -1,9 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
 namespace Cocona.Builder.Metadata
 {
     public class CommandAliasesMetadata

src/Cocona.Core/Builder/Metadata/CommandFromBuilderMetadata.cs

@@ -1,9 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
 namespace Cocona.Builder.Metadata
 {
     internal class CommandFromBuilderMetadata

src/Cocona.Core/Builder/Metadata/OptionLikeCommandMetadata.cs

@@ -1,10 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Reflection;
-using System.Text;
-using System.Threading.Tasks;
-
 namespace Cocona.Builder.Metadata
 {
     public class OptionLikeCommandMetadata : IOptionLikeCommandMetadata

src/Cocona.Core/Builder/OptionLikeCommandsBuilder.cs

@@ -1,10 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Cocona.Builder;
-using Cocona.Builder.Metadata;
 using Cocona.Internal;
 
 namespace Cocona.Builder

src/Cocona.Core/Builder/OptionLikeDelegateCommandData.cs

@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Reflection;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Cocona.Builder
 {

src/Cocona.Core/Builder/SubCommandData.cs

@@ -1,9 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
 namespace Cocona.Builder
 {
     public class SubCommandData : ICommandData

src/Cocona.Core/Builder/TypeCommandData.cs

@@ -1,9 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
 namespace Cocona.Builder
 {
     public class TypeCommandData : ICommandData

src/Cocona.Core/Builder/TypeMethodCommandData.cs

@@ -1,9 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Reflection;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace Cocona.Builder
 {

src/Cocona.Core/Cocona.Core.csproj

@@ -3,10 +3,8 @@
   <PropertyGroup>
     <TargetFrameworks>net6.0;netstandard2.0;netstandard2.1</TargetFrameworks>
     <RootNamespace>Cocona</RootNamespace>
-
-    <nullable>enable</nullable>
-    <WarningsAsErrors>RS0030</WarningsAsErrors>
-    <NoWarn>$(NoWarn);1701;1702;1591</NoWarn>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
 
     <!-- NuGet Package Information -->
     <Description>Core component for Cocona. Micro-framework for .NET console application.</Description>

src/Cocona.Core/CoconaAppContext.cs

@@ -1,7 +1,4 @@
 using Cocona.Command;
-using Cocona.CommandLine;
-using System.Text;
-using System.Threading;
 
 namespace Cocona
 {

src/Cocona.Core/CoconaAppFeatureCollection.cs

@@ -1,6 +1,3 @@
-using System;
-using System.Collections.Generic;
-
 namespace Cocona
 {
     public class CoconaAppFeatureCollection

src/Cocona.Core/CoconaException.cs

@@ -1,7 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
 namespace Cocona
 {
     public class CoconaException : Exception

src/Cocona.Core/Command/Binder/CoconaParameterBinder.cs

@@ -1,9 +1,5 @@
 using Cocona.CommandLine;
 using Cocona.Internal;
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 using Cocona.Command.Binder.Validation;
 
 namespace Cocona.Command.Binder

src/Cocona.Core/Command/Binder/CoconaValueConverter.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
 using System.ComponentModel;
-using System.Text;
 
 namespace Cocona.Command.Binder
 {

src/Cocona.Core/Command/Binder/ICoconaParameterBinder.cs

@@ -1,5 +1,4 @@
 using Cocona.CommandLine;
-using System.Collections.Generic;
 
 namespace Cocona.Command.Binder
 {

src/Cocona.Core/Command/Binder/ICoconaValueConverter.cs

@@ -1,8 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
-namespace Cocona.Command.Binder
+namespace Cocona.Command.Binder
 {
     public interface ICoconaValueConverter
     {

src/Cocona.Core/Command/Binder/ParameterBinderException.cs

@@ -1,5 +1,3 @@
-using System;
-
 namespace Cocona.Command.Binder
 {
     public class ParameterBinderException : Exception

src/Cocona.Core/Command/Binder/Validation/CoconaParameterValidationContext.cs

@@ -1,6 +1,4 @@
-using System;
-
-namespace Cocona.Command.Binder.Validation
+namespace Cocona.Command.Binder.Validation
 {
     public struct CoconaParameterValidationContext
     {

src/Cocona.Core/Command/Binder/Validation/CoconaParameterValidationResult.cs

@@ -1,6 +1,4 @@
-using System;
-
-namespace Cocona.Command.Binder.Validation
+namespace Cocona.Command.Binder.Validation
 {
     public class CoconaParameterValidationResult
     {

src/Cocona.Core/Command/Binder/Validation/DataAnnotationsParameterValidator.cs

@@ -1,7 +1,4 @@
-using System;
-using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
-using System.Text;
 
 namespace Cocona.Command.Binder.Validation
 {

src/Cocona.Core/Command/Binder/Validation/DataAnnotationsParameterValidatorProvider.cs

@@ -1,6 +1,4 @@
-using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
-using System.Linq;
 
 namespace Cocona.Command.Binder.Validation
 {

src/Cocona.Core/Command/Binder/Validation/ICoconaParameterValidator.cs

@@ -1,6 +1,4 @@
-using System.Collections.Generic;
-
-namespace Cocona.Command.Binder.Validation
+namespace Cocona.Command.Binder.Validation
 {
     public interface ICoconaParameterValidator
     {

src/Cocona.Core/Command/Binder/Validation/ICoconaParameterValidatorProvider.cs

@@ -1,6 +1,4 @@
-using System.Collections.Generic;
-
-namespace Cocona.Command.Binder.Validation
+namespace Cocona.Command.Binder.Validation
 {
     public interface ICoconaParameterValidatorProvider
     {

src/Cocona.Core/Command/BuiltIn/BuiltInOptionLikeCommands.cs

@@ -1,11 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 using Cocona.Application;
-using Cocona.Command.Features;
-using Cocona.CommandLine;
 using Cocona.Help;
 using Cocona.Resources;
 using Cocona.ShellCompletion;

src/Cocona.Core/Command/BuiltIn/BuiltInPrimaryCommand.cs

@@ -1,11 +1,6 @@
 using Cocona.Application;
 using Cocona.Help;
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Reflection;
-using System.Text;
-using Cocona.Command.Features;
 
 namespace Cocona.Command.BuiltIn
 {

src/Cocona.Core/Command/BuiltIn/CoconaBuiltInCommandProvider.cs

@@ -1,8 +1,3 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-
 namespace Cocona.Command.BuiltIn
 {
     public class CoconaBuiltInCommandProvider : ICoconaCommandProvider