using Microsoft.CodeAnalysis.CSharp.Symbols;

namespace Microsoft.CodeAnalysis.CSharp;

internal abstract class BoundPattern : BoundNode
{
	public TypeSymbol InputType { get; }

	public TypeSymbol NarrowedType { get; }

	internal bool IsNegated(out BoundPattern innerPattern)
	{
		innerPattern = this;
		bool flag = false;
		while (innerPattern is BoundNegatedPattern boundNegatedPattern)
		{
			flag = !flag;
			innerPattern = boundNegatedPattern.Negated;
		}
		return flag;
	}

	protected BoundPattern(BoundKind kind, SyntaxNode syntax, TypeSymbol inputType, TypeSymbol narrowedType, bool hasErrors)
		: base(kind, syntax, hasErrors)
	{
		InputType = inputType;
		NarrowedType = narrowedType;
	}

	protected BoundPattern(BoundKind kind, SyntaxNode syntax, TypeSymbol inputType, TypeSymbol narrowedType)
		: base(kind, syntax)
	{
		InputType = inputType;
		NarrowedType = narrowedType;
	}
}