// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
#nullable disable
 
using System.Collections.Immutable;
using Microsoft.CodeAnalysis.Editing;
 
namespace Microsoft.CodeAnalysis.CodeGeneration;
 
internal abstract class CodeGenerationTypeSymbol(
    IAssemblySymbol containingAssembly,
    INamedTypeSymbol containingType,
    ImmutableArray<AttributeData> attributes,
    Accessibility declaredAccessibility,
    DeclarationModifiers modifiers,
    string name,
    SpecialType specialType,
    NullableAnnotation nullableAnnotation)
    : CodeGenerationNamespaceOrTypeSymbol(containingAssembly, containingType, attributes, declaredAccessibility, modifiers, name), ITypeSymbol
{
    public SpecialType SpecialType { get; protected set; } = specialType;
 
    public abstract TypeKind TypeKind { get; }
 
    public virtual INamedTypeSymbol BaseType => null;
 
    public virtual ImmutableArray<INamedTypeSymbol> Interfaces
        => [];
 
    public ImmutableArray<INamedTypeSymbol> AllInterfaces
        => [];
 
    public bool IsReferenceType => false;
 
    public bool IsValueType => TypeKind is TypeKind.Struct or TypeKind.Enum;
 
    public bool IsAnonymousType => false;
 
    public bool IsTupleType => false;
 
    public bool IsNativeIntegerType => false;
 
#if !ROSLYN_4_12_OR_LOWER
    bool ITypeSymbol.IsExtension => false;
 
    IParameterSymbol ITypeSymbol.ExtensionParameter => null;
#endif
 
    public static ImmutableArray<ITypeSymbol> TupleElementTypes => default;
 
    public static ImmutableArray<string> TupleElementNames => default;
 
    public new ITypeSymbol OriginalDefinition => this;
 
    public ISymbol FindImplementationForInterfaceMember(ISymbol interfaceMember) => null;
 
    public string ToDisplayString(NullableFlowState topLevelNullability, SymbolDisplayFormat format = null)
        => throw new System.NotImplementedException();
 
    public ImmutableArray<SymbolDisplayPart> ToDisplayParts(NullableFlowState topLevelNullability, SymbolDisplayFormat format = null)
        => throw new System.NotImplementedException();
 
    public string ToMinimalDisplayString(SemanticModel semanticModel, NullableFlowState topLevelNullability, int position, SymbolDisplayFormat format = null)
        => throw new System.NotImplementedException();
 
    public ImmutableArray<SymbolDisplayPart> ToMinimalDisplayParts(SemanticModel semanticModel, NullableFlowState topLevelNullability, int position, SymbolDisplayFormat format = null)
        => throw new System.NotImplementedException();
 
    public override bool IsNamespace => false;
 
    public override bool IsType => true;
 
    bool ITypeSymbol.IsRefLikeType => false;
 
    bool ITypeSymbol.IsUnmanagedType => throw new System.NotImplementedException();
 
    bool ITypeSymbol.IsReadOnly => Modifiers.IsReadOnly;
 
    public virtual bool IsRecord => false;
 
    public NullableAnnotation NullableAnnotation { get; } = nullableAnnotation;
 
    public ITypeSymbol WithNullableAnnotation(NullableAnnotation nullableAnnotation)
        => this.NullableAnnotation == nullableAnnotation ? this : CloneWithNullableAnnotation(nullableAnnotation);
 
    protected sealed override CodeGenerationSymbol Clone()
        => CloneWithNullableAnnotation(this.NullableAnnotation);
 
    protected abstract CodeGenerationTypeSymbol CloneWithNullableAnnotation(NullableAnnotation nullableAnnotation);
}