55 lines
1.2 KiB
C#
55 lines
1.2 KiB
C#
using Canon.Core.CodeGenerators;
|
|
using Canon.Core.Enums;
|
|
using Canon.Core.SemanticParser;
|
|
|
|
namespace Canon.Core.SyntaxNodes;
|
|
|
|
public class IdentifierVarPart : NonTerminatedSyntaxNode
|
|
{
|
|
public override NonTerminatorType Type => NonTerminatorType.IdVarPart;
|
|
|
|
/// <summary>
|
|
/// 是否声明了索引部分
|
|
/// </summary>
|
|
public bool Exist { get; private init; }
|
|
|
|
/// <summary>
|
|
/// 索引中的位置声明
|
|
/// </summary>
|
|
public IEnumerable<Expression> Positions => GetPositions();
|
|
|
|
private IEnumerable<Expression> GetPositions()
|
|
{
|
|
if (!Exist)
|
|
{
|
|
yield break;
|
|
}
|
|
|
|
foreach (Expression expression in Children[1].Convert<ExpressionList>().Expressions)
|
|
{
|
|
yield return expression;
|
|
}
|
|
}
|
|
|
|
public static IdentifierVarPart Create(List<SyntaxNodeBase> children)
|
|
{
|
|
bool exist;
|
|
|
|
if (children.Count == 0)
|
|
{
|
|
exist = false;
|
|
}
|
|
else if (children.Count == 3)
|
|
{
|
|
exist = true;
|
|
}
|
|
else
|
|
{
|
|
throw new InvalidOperationException();
|
|
}
|
|
|
|
return new IdentifierVarPart { Children = children, Exist = exist };
|
|
}
|
|
|
|
}
|