using System;
using System.Collections.Generic;
using Microsoft.CodeAnalysis.Syntax.InternalSyntax;
using Roslyn.Utilities;

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class QueryBodySyntax : CSharpSyntaxNode
{
	internal readonly GreenNode? clauses;

	internal readonly SelectOrGroupClauseSyntax selectOrGroup;

	internal readonly QueryContinuationSyntax? continuation;

	public SyntaxList<QueryClauseSyntax> Clauses => new SyntaxList<QueryClauseSyntax>(clauses);

	public SelectOrGroupClauseSyntax SelectOrGroup => selectOrGroup;

	public QueryContinuationSyntax? Continuation => continuation;

	internal QueryBodySyntax(SyntaxKind kind, GreenNode? clauses, SelectOrGroupClauseSyntax selectOrGroup, QueryContinuationSyntax? continuation, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 3;
		if (clauses != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(clauses);
			this.clauses = clauses;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)selectOrGroup);
		this.selectOrGroup = selectOrGroup;
		if (continuation != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)continuation);
			this.continuation = continuation;
		}
	}

	internal QueryBodySyntax(SyntaxKind kind, GreenNode? clauses, SelectOrGroupClauseSyntax selectOrGroup, QueryContinuationSyntax? continuation, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 3;
		if (clauses != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(clauses);
			this.clauses = clauses;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)selectOrGroup);
		this.selectOrGroup = selectOrGroup;
		if (continuation != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)continuation);
			this.continuation = continuation;
		}
	}

	internal QueryBodySyntax(SyntaxKind kind, GreenNode? clauses, SelectOrGroupClauseSyntax selectOrGroup, QueryContinuationSyntax? continuation)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 3;
		if (clauses != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(clauses);
			this.clauses = clauses;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)selectOrGroup);
		this.selectOrGroup = selectOrGroup;
		if (continuation != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)continuation);
			this.continuation = continuation;
		}
	}

	internal override GreenNode? GetSlot(int index)
	{
		return (GreenNode?)(index switch
		{
			0 => clauses, 
			1 => selectOrGroup, 
			2 => continuation, 
			_ => null, 
		});
	}

	internal override SyntaxNode CreateRed(SyntaxNode? parent, int position)
	{
		return (SyntaxNode)(object)new Microsoft.CodeAnalysis.CSharp.Syntax.QueryBodySyntax(this, parent, position);
	}

	public override void Accept(CSharpSyntaxVisitor visitor)
	{
		visitor.VisitQueryBody(this);
	}

	public override TResult Accept<TResult>(CSharpSyntaxVisitor<TResult> visitor)
	{
		return visitor.VisitQueryBody(this);
	}

	public QueryBodySyntax Update(SyntaxList<QueryClauseSyntax> clauses, SelectOrGroupClauseSyntax selectOrGroup, QueryContinuationSyntax continuation)
	{
		//IL_0000: Unknown result type (might be due to invalid IL or missing references)
		//IL_0002: Unknown result type (might be due to invalid IL or missing references)
		//IL_0020: Unknown result type (might be due to invalid IL or missing references)
		if (clauses != Clauses || selectOrGroup != SelectOrGroup || continuation != Continuation)
		{
			QueryBodySyntax queryBodySyntax = SyntaxFactory.QueryBody(clauses, selectOrGroup, continuation);
			DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
			if (diagnostics != null && diagnostics.Length != 0)
			{
				queryBodySyntax = GreenNodeExtensions.WithDiagnosticsGreen<QueryBodySyntax>(queryBodySyntax, diagnostics);
			}
			SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
			if (annotations != null && annotations.Length != 0)
			{
				queryBodySyntax = GreenNodeExtensions.WithAnnotationsGreen<QueryBodySyntax>(queryBodySyntax, (IEnumerable<SyntaxAnnotation>)annotations);
			}
			return queryBodySyntax;
		}
		return this;
	}

	internal override GreenNode SetDiagnostics(DiagnosticInfo[]? diagnostics)
	{
		return (GreenNode)(object)new QueryBodySyntax(base.Kind, clauses, selectOrGroup, continuation, diagnostics, ((GreenNode)this).GetAnnotations());
	}

	internal override GreenNode SetAnnotations(SyntaxAnnotation[]? annotations)
	{
		return (GreenNode)(object)new QueryBodySyntax(base.Kind, clauses, selectOrGroup, continuation, ((GreenNode)this).GetDiagnostics(), annotations);
	}

	internal QueryBodySyntax(ObjectReader reader)
		: base(reader)
	{
		//IL_0014: Unknown result type (might be due to invalid IL or missing references)
		//IL_001a: Expected O, but got Unknown
		((GreenNode)this).SlotCount = 3;
		GreenNode val = (GreenNode)reader.ReadValue();
		if (val != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(val);
			clauses = val;
		}
		SelectOrGroupClauseSyntax selectOrGroupClauseSyntax = (SelectOrGroupClauseSyntax)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)selectOrGroupClauseSyntax);
		selectOrGroup = selectOrGroupClauseSyntax;
		QueryContinuationSyntax queryContinuationSyntax = (QueryContinuationSyntax)reader.ReadValue();
		if (queryContinuationSyntax != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)queryContinuationSyntax);
			continuation = queryContinuationSyntax;
		}
	}

	internal override void WriteTo(ObjectWriter writer)
	{
		((GreenNode)this).WriteTo(writer);
		writer.WriteValue((IObjectWritable)(object)clauses);
		writer.WriteValue((IObjectWritable)(object)selectOrGroup);
		writer.WriteValue((IObjectWritable)(object)continuation);
	}

	static QueryBodySyntax()
	{
		ObjectBinder.RegisterTypeReader(typeof(QueryBodySyntax), (Func<ObjectReader, IObjectWritable>)((ObjectReader r) => (IObjectWritable)(object)new QueryBodySyntax(r)));
	}
}