aspclassic-core/AspClassic.Parser/DictionaryLookupExpression.cs
Jelle Luteijn 484dbfc9d9 progress
2022-05-15 11:19:49 +02:00

58 lines
1.5 KiB
C#

using System;
using System.Collections.Generic;
namespace AspClassic.Parser;
/// <summary>
/// A parse tree for a dictionary lookup expression.
/// </summary>
public sealed class DictionaryLookupExpression : Expression
{
private readonly Expression _Qualifier;
private readonly Location _BangLocation;
private readonly SimpleName _Name;
/// <summary>
/// The dictionary expression.
/// </summary>
public Expression Qualifier => _Qualifier;
/// <summary>
/// The location of the '!'.
/// </summary>
public Location BangLocation => _BangLocation;
/// <summary>
/// The name to look up.
/// </summary>
public SimpleName Name => _Name;
/// <summary>
/// Constructs a new parse tree for a dictionary lookup expression.
/// </summary>
/// <param name="qualifier">The dictionary expression.</param>
/// <param name="bangLocation">The location of the '!'.</param>
/// <param name="name">The name to look up..</param>
/// <param name="span">The location of the parse tree.</param>
public DictionaryLookupExpression(Expression qualifier, Location bangLocation, SimpleName name, Span span)
: base(TreeType.DictionaryLookupExpression, span)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
SetParent(qualifier);
SetParent(name);
_Qualifier = qualifier;
_BangLocation = bangLocation;
_Name = name;
}
protected override void GetChildTrees(IList<Tree> childList)
{
Tree.AddChild(childList, Qualifier);
Tree.AddChild(childList, Name);
}
}