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

namespace Microsoft.CodeAnalysis.CSharp.Syntax.InternalSyntax;

internal sealed class ListPatternSyntax : PatternSyntax
{
	internal readonly SyntaxToken openBracketToken;

	internal readonly GreenNode? patterns;

	internal readonly SyntaxToken closeBracketToken;

	internal readonly VariableDesignationSyntax? designation;

	public SyntaxToken OpenBracketToken => openBracketToken;

	public SeparatedSyntaxList<PatternSyntax> Patterns => new SeparatedSyntaxList<PatternSyntax>(SyntaxList<CSharpSyntaxNode>.op_Implicit(new SyntaxList<CSharpSyntaxNode>(patterns)));

	public SyntaxToken CloseBracketToken => closeBracketToken;

	public VariableDesignationSyntax? Designation => designation;

	internal ListPatternSyntax(SyntaxKind kind, SyntaxToken openBracketToken, GreenNode? patterns, SyntaxToken closeBracketToken, VariableDesignationSyntax? designation, DiagnosticInfo[]? diagnostics, SyntaxAnnotation[]? annotations)
		: base(kind, diagnostics, annotations)
	{
		((GreenNode)this).SlotCount = 4;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)openBracketToken);
		this.openBracketToken = openBracketToken;
		if (patterns != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(patterns);
			this.patterns = patterns;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)closeBracketToken);
		this.closeBracketToken = closeBracketToken;
		if (designation != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)designation);
			this.designation = designation;
		}
	}

	internal ListPatternSyntax(SyntaxKind kind, SyntaxToken openBracketToken, GreenNode? patterns, SyntaxToken closeBracketToken, VariableDesignationSyntax? designation, SyntaxFactoryContext context)
		: base(kind)
	{
		SetFactoryContext(context);
		((GreenNode)this).SlotCount = 4;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)openBracketToken);
		this.openBracketToken = openBracketToken;
		if (patterns != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(patterns);
			this.patterns = patterns;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)closeBracketToken);
		this.closeBracketToken = closeBracketToken;
		if (designation != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)designation);
			this.designation = designation;
		}
	}

	internal ListPatternSyntax(SyntaxKind kind, SyntaxToken openBracketToken, GreenNode? patterns, SyntaxToken closeBracketToken, VariableDesignationSyntax? designation)
		: base(kind)
	{
		((GreenNode)this).SlotCount = 4;
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)openBracketToken);
		this.openBracketToken = openBracketToken;
		if (patterns != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(patterns);
			this.patterns = patterns;
		}
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)closeBracketToken);
		this.closeBracketToken = closeBracketToken;
		if (designation != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)designation);
			this.designation = designation;
		}
	}

	internal override GreenNode? GetSlot(int index)
	{
		return (GreenNode?)(index switch
		{
			0 => openBracketToken, 
			1 => patterns, 
			2 => closeBracketToken, 
			3 => designation, 
			_ => null, 
		});
	}

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

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

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

	public ListPatternSyntax Update(SyntaxToken openBracketToken, SeparatedSyntaxList<PatternSyntax> patterns, SyntaxToken closeBracketToken, VariableDesignationSyntax designation)
	{
		//IL_002f: Unknown result type (might be due to invalid IL or missing references)
		//IL_000c: Unknown result type (might be due to invalid IL or missing references)
		//IL_0011: Unknown result type (might be due to invalid IL or missing references)
		if (openBracketToken == OpenBracketToken)
		{
			SeparatedSyntaxList<PatternSyntax> val = Patterns;
			if (!((ref patterns) != (ref val)) && closeBracketToken == CloseBracketToken && designation == Designation)
			{
				return this;
			}
		}
		ListPatternSyntax listPatternSyntax = SyntaxFactory.ListPattern(openBracketToken, patterns, closeBracketToken, designation);
		DiagnosticInfo[] diagnostics = ((GreenNode)this).GetDiagnostics();
		if (diagnostics != null && diagnostics.Length != 0)
		{
			listPatternSyntax = GreenNodeExtensions.WithDiagnosticsGreen<ListPatternSyntax>(listPatternSyntax, diagnostics);
		}
		SyntaxAnnotation[] annotations = ((GreenNode)this).GetAnnotations();
		if (annotations != null && annotations.Length != 0)
		{
			listPatternSyntax = GreenNodeExtensions.WithAnnotationsGreen<ListPatternSyntax>(listPatternSyntax, (IEnumerable<SyntaxAnnotation>)annotations);
		}
		return listPatternSyntax;
	}

	internal override GreenNode SetDiagnostics(DiagnosticInfo[]? diagnostics)
	{
		return (GreenNode)(object)new ListPatternSyntax(base.Kind, openBracketToken, patterns, closeBracketToken, designation, diagnostics, ((GreenNode)this).GetAnnotations());
	}

	internal override GreenNode SetAnnotations(SyntaxAnnotation[]? annotations)
	{
		return (GreenNode)(object)new ListPatternSyntax(base.Kind, openBracketToken, patterns, closeBracketToken, designation, ((GreenNode)this).GetDiagnostics(), annotations);
	}

	internal ListPatternSyntax(ObjectReader reader)
		: base(reader)
	{
		//IL_002e: Unknown result type (might be due to invalid IL or missing references)
		//IL_0034: Expected O, but got Unknown
		((GreenNode)this).SlotCount = 4;
		SyntaxToken syntaxToken = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken);
		openBracketToken = syntaxToken;
		GreenNode val = (GreenNode)reader.ReadValue();
		if (val != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth(val);
			patterns = val;
		}
		SyntaxToken syntaxToken2 = (SyntaxToken)reader.ReadValue();
		((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)syntaxToken2);
		closeBracketToken = syntaxToken2;
		VariableDesignationSyntax variableDesignationSyntax = (VariableDesignationSyntax)reader.ReadValue();
		if (variableDesignationSyntax != null)
		{
			((GreenNode)this).AdjustFlagsAndWidth((GreenNode)(object)variableDesignationSyntax);
			designation = variableDesignationSyntax;
		}
	}

	internal override void WriteTo(ObjectWriter writer)
	{
		((GreenNode)this).WriteTo(writer);
		writer.WriteValue((IObjectWritable)(object)openBracketToken);
		writer.WriteValue((IObjectWritable)(object)patterns);
		writer.WriteValue((IObjectWritable)(object)closeBracketToken);
		writer.WriteValue((IObjectWritable)(object)designation);
	}

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