// 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 Microsoft.CodeAnalysis.Formatting;
using Microsoft.CodeAnalysis.Formatting.Rules;
using Microsoft.CodeAnalysis.LanguageService;
using Microsoft.CodeAnalysis.Text;
 
namespace Microsoft.CodeAnalysis.Indentation;
 
internal abstract partial class AbstractIndentation<TSyntaxRoot>
    where TSyntaxRoot : SyntaxNode, ICompilationUnitSyntax
{
    protected abstract ISyntaxFacts SyntaxFacts { get; }
    protected abstract IHeaderFacts HeaderFacts { get; }
    protected abstract ISyntaxFormatting SyntaxFormatting { get; }
 
    protected abstract AbstractFormattingRule GetSpecializedIndentationFormattingRule(FormattingOptions2.IndentStyle indentStyle);
 
    /// <summary>
    /// Returns <see langword="true"/> if the language specific <see
    /// cref="ISmartTokenFormatter"/> should be deferred to figure out indentation.  If so, it
    /// will be asked to <see cref="ISmartTokenFormatter.FormatToken"/> the resultant
    /// <paramref name="token"/> provided by this method.
    /// </summary>
    protected abstract bool ShouldUseTokenIndenter(Indenter indenter, out SyntaxToken token);
    protected abstract ISmartTokenFormatter CreateSmartTokenFormatter(
        TSyntaxRoot root, SourceText text, TextLine lineToBeIndented, IndentationOptions options, AbstractFormattingRule baseFormattingRule);
 
    protected abstract IndentationResult? GetDesiredIndentationWorker(
        Indenter indenter, SyntaxToken? token, SyntaxTrivia? trivia);
}