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AspClassic.Parser/Declaration.cs

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+#define DEBUG
+using System.Collections.Generic;
+using System.Diagnostics;
+
+namespace AspClassic.Parser;
+
+/// <summary>
+/// A parse tree for a declaration.
+/// </summary>
+public class Declaration : Statement
+{
+	public override bool IsBad => base.Type == TreeType.SyntaxError;
+
+	/// <summary>
+	/// Creates a bad declaration.
+	/// </summary>
+	/// <param name="span">The location of the parse tree.</param>
+	/// <param name="comments">The comments for the parse tree.</param>
+	/// <returns>A bad declaration.</returns>
+	public static Declaration GetBadDeclaration(Span span, IList<Comment> comments)
+	{
+		return new Declaration(span, comments);
+	}
+
+	protected Declaration(TreeType type, Span span, IList<Comment> comments)
+		: base(type, span, comments)
+	{
+		Debug.Assert(type >= TreeType.EmptyDeclaration && type <= TreeType.DelegateFunctionDeclaration);
+	}
+
+	private Declaration(Span span, IList<Comment> comments)
+		: base(TreeType.SyntaxError, span, comments)
+	{
+	}
+}