78 lines
2.4 KiB
C#
78 lines
2.4 KiB
C#
/*
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* Yet Another Tiger Compiler (YATC)
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*
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* Copyright 2014 Damian Valdés Santiago, Juan Carlos Pujol Mainegra
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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using Antlr.Runtime;
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using Antlr.Runtime.Tree;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.Linq;
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namespace YATC.Scope
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{
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public abstract class TigerNode : CommonTree
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{
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protected TigerNode(IToken payload)
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: base(payload)
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{
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}
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public bool IsRoot
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{
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get { return Parent == null; }
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}
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/// <summary>
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/// Lists all the nodes from current to root
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/// </summary>
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public IEnumerable<TigerNode> GetNodesToRoot()
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{
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if (this.IsRoot)
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yield break;
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Debug.Assert(this.Parent is TigerNode);
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var parent = Parent as TigerNode;
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yield return parent;
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foreach (var item in parent.GetNodesToRoot())
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yield return item;
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}
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public int Column { get { return CharPositionInLine; } }
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//public new TigerNode Parent
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//{
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// get { return (TigerNode)base.Parent; }
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//}
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public TigerNode[] TigerChildren
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{
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get
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{
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return base.Children == null ? new TigerNode[0] : base.Children.Cast<TigerNode>().ToArray();
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}
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}
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}
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}
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