// 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.
 
using System.Collections.Generic;
using Microsoft.CodeAnalysis.CSharp.Syntax;
using Microsoft.CodeAnalysis.Text;
 
namespace Microsoft.CodeAnalysis.CSharp.EditAndContinue;
 
/// <summary>
/// Property accessor with explicit body:
///   T P { get => [|expr;|] }
///   T P { set => [|expr;|] }
///   T P { init => [|expr;|] }
///   T P { get { ... } }
///   T P { set { ... } }
///   T P { init { ... } }
///   T this[...] { get => [|expr;|] }
///   T this[...] { set => [|expr;|] }
///   T this[...] { get { ... } }
///   T this[...] { set { ... } }
/// </summary>
internal sealed class PropertyOrIndexerAccessorWithExplicitBodyDeclarationBody(AccessorDeclarationSyntax accessor) : PropertyOrIndexerAccessorDeclarationBody
{
    public SyntaxNode Body
        => (SyntaxNode?)accessor.Body ?? accessor.ExpressionBody!.Expression;
 
    public override SyntaxNode? ExplicitBody
        => Body;
 
    public override SyntaxNode? HeaderActiveStatement
        => null;
 
    public override TextSpan HeaderActiveStatementSpan
        => default;
 
    public override SyntaxNode? MatchRoot
        => (SyntaxNode?)accessor.Body ?? accessor.ExpressionBody!;
 
    public sealed override IEnumerable<SyntaxToken>? GetActiveTokens()
        => Body.DescendantTokens();
}