using System.Diagnostics;
using Microsoft.CodeAnalysis.CSharp.Symbols;

namespace Microsoft.CodeAnalysis.CSharp;

internal sealed class BoundBlockInstrumentation : BoundNode
{
	public LocalSymbol Local { get; }

	public BoundStatement Prologue { get; }

	public BoundStatement Epilogue { get; }

	public BoundBlockInstrumentation(SyntaxNode syntax, LocalSymbol local, BoundStatement prologue, BoundStatement epilogue, bool hasErrors = false)
		: base(BoundKind.BlockInstrumentation, syntax, hasErrors || prologue.HasErrors() || epilogue.HasErrors())
	{
		Local = local;
		Prologue = prologue;
		Epilogue = epilogue;
	}

	[DebuggerStepThrough]
	public override BoundNode? Accept(BoundTreeVisitor visitor)
	{
		return visitor.VisitBlockInstrumentation(this);
	}

	public BoundBlockInstrumentation Update(LocalSymbol local, BoundStatement prologue, BoundStatement epilogue)
	{
		if (!SymbolEqualityComparer.ConsiderEverything.Equals(local, Local) || prologue != Prologue || epilogue != Epilogue)
		{
			BoundBlockInstrumentation boundBlockInstrumentation = new BoundBlockInstrumentation(Syntax, local, prologue, epilogue, base.HasErrors);
			boundBlockInstrumentation.CopyAttributes(this);
			return boundBlockInstrumentation;
		}
		return this;
	}
}