Canon/Canon.Core/SyntaxNodes/Parameter.cs

52 lines
1.3 KiB
C#

using Canon.Core.Abstractions;
using Canon.Core.Enums;
namespace Canon.Core.SyntaxNodes;
public class Parameter : NonTerminatedSyntaxNode
{
public override NonTerminatorType Type => NonTerminatorType.Parameter;
/// <summary>
/// 是否为引用变量
/// </summary>
public bool IsVar { get; private init; }
/// <summary>
/// 声明的变量名称
/// </summary>
public ValueParameter ValueParameter =>
IsVar ? Children[0].Convert<VarParameter>().ValueParameter : Children[0].Convert<ValueParameter>();
public override void PreVisit(SyntaxNodeVisitor visitor)
{
visitor.PreVisit(this);
}
public override void PostVisit(SyntaxNodeVisitor visitor)
{
visitor.PostVisit(this);
}
public static Parameter Create(List<SyntaxNodeBase> children)
{
NonTerminatedSyntaxNode node = children[0].Convert<NonTerminatedSyntaxNode>();
bool isVar;
if (node.Type == NonTerminatorType.VarParameter)
{
isVar = true;
}
else if (node.Type == NonTerminatorType.ValueParameter)
{
isVar = false;
}
else
{
throw new InvalidOperationException();
}
return new Parameter { Children = children, IsVar = isVar };
}
}