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AspClassic.Parser/Modifier.cs

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+using System;
+
+namespace AspClassic.Parser;
+
+/// <summary>
+/// A parse tree for a declaration modifier.
+/// </summary>
+public sealed class Modifier : Tree
+{
+	private readonly ModifierTypes _ModifierType;
+
+	/// <summary>
+	/// The type of the modifier.
+	/// </summary>
+	public ModifierTypes ModifierType => _ModifierType;
+
+	/// <summary>
+	/// Constructs a new modifier parse tree.
+	/// </summary>
+	/// <param name="modifierType">The type of the modifier.</param>
+	/// <param name="span">The location of the parse tree.</param>
+	public Modifier(ModifierTypes modifierType, Span span)
+		: base(TreeType.Modifier, span)
+	{
+		if ((modifierType & checked(modifierType - 1)) != 0 || modifierType < ModifierTypes.None || modifierType > ModifierTypes.Narrowing)
+		{
+			throw new ArgumentOutOfRangeException("modifierType");
+		}
+		_ModifierType = modifierType;
+	}
+}