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AspClassic.Parser/SimpleName.cs

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+using System;
+
+namespace AspClassic.Parser;
+
+/// <summary>
+/// A parse tree for a simple name (e.g. 'foo').
+/// </summary>
+public sealed class SimpleName : Name
+{
+	private readonly string _Name;
+
+	private readonly TypeCharacter _TypeCharacter;
+
+	private readonly bool _Escaped;
+
+	/// <summary>
+	/// The name, if any.
+	/// </summary>
+	public string Name => _Name;
+
+	/// <summary>
+	/// The type character.
+	/// </summary>
+	public TypeCharacter TypeCharacter => _TypeCharacter;
+
+	/// <summary>
+	/// Whether the name is escaped.
+	/// </summary>
+	public bool Escaped => _Escaped;
+
+	public override bool IsBad => Name == null;
+
+	/// <summary>
+	/// Creates a bad simple name.
+	/// </summary>
+	/// <param name="Span">The location of the parse tree.</param>
+	/// <returns>A bad simple name.</returns>
+	public static SimpleName GetBadSimpleName(Span span)
+	{
+		return new SimpleName(span);
+	}
+
+	/// <summary>
+	/// Constructs a new simple name parse tree.
+	/// </summary>
+	/// <param name="name">The name, if any.</param>
+	/// <param name="typeCharacter">The type character.</param>
+	/// <param name="escaped">Whether the name is escaped.</param>
+	/// <param name="span">The location of the parse tree.</param>
+	public SimpleName(string name, TypeCharacter typeCharacter, bool escaped, Span span)
+		: base(TreeType.SimpleName, span)
+	{
+		if (typeCharacter != 0 && escaped)
+		{
+			throw new ArgumentException("Escaped named cannot have type characters.");
+		}
+		if (typeCharacter != 0 && typeCharacter != TypeCharacter.DecimalSymbol && typeCharacter != TypeCharacter.DoubleSymbol && typeCharacter != TypeCharacter.IntegerSymbol && typeCharacter != TypeCharacter.LongSymbol && typeCharacter != TypeCharacter.SingleSymbol && typeCharacter != TypeCharacter.StringSymbol)
+		{
+			throw new ArgumentOutOfRangeException("typeCharacter");
+		}
+		if (name == null)
+		{
+			throw new ArgumentNullException("name");
+		}
+		_Name = name;
+		_TypeCharacter = typeCharacter;
+		_Escaped = escaped;
+	}
+
+	private SimpleName(Span span)
+		: base(TreeType.SimpleName, span)
+	{
+	}
+}