// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System;
using System.CodeDom;
using System.CodeDom.Compiler;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Reflection;
 
namespace Microsoft.CSharp
{
    public class CSharpCodeProvider : CodeDomProvider
    {
        private readonly CSharpCodeGenerator _generator;
 
        public CSharpCodeProvider()
        {
            _generator = new CSharpCodeGenerator();
        }
 
        public CSharpCodeProvider(IDictionary<string, string> providerOptions)
        {
            if (providerOptions is null)
            {
                throw new ArgumentNullException(nameof(providerOptions));
            }
 
            _generator = new CSharpCodeGenerator(providerOptions);
        }
 
        public override string FileExtension => "cs";
 
        [Obsolete("ICodeGenerator has been deprecated. Use the methods directly on the CodeDomProvider class instead.")]
        public override ICodeGenerator CreateGenerator() => _generator;
 
        [Obsolete("ICodeCompiler has been deprecated. Use the methods directly on the CodeDomProvider class instead.")]
        public override ICodeCompiler CreateCompiler() => _generator;
 
        public override TypeConverter GetConverter(Type type) =>
            type == typeof(MemberAttributes) ? CSharpMemberAttributeConverter.Default :
            type == typeof(TypeAttributes) ? CSharpTypeAttributeConverter.Default :
            base.GetConverter(type);
 
        public override void GenerateCodeFromMember(CodeTypeMember member, TextWriter writer, CodeGeneratorOptions options) =>
            _generator.GenerateCodeFromMember(member, writer, options);
    }
}