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// bsn GoldParser .NET Engine
// --------------------------
//
// Copyright 2009, 2010 by Ars�ne von Wyss - avw@gmx.ch
//
// Development has been supported by Sirius Technologies AG, Basel
//
// Source:
//
// https://bsn-goldparser.googlecode.com/hg/
//
// License:
//
// The library is distributed under the GNU Lesser General Public License:
// http://www.gnu.org/licenses/lgpl.html
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
using System;
using bsn.GoldParser.Parser;
namespace bsn.GoldParser.Grammar {
/// <summary>
/// Action in a LR State.
/// </summary>
public abstract class LalrAction: GrammarObject<LalrAction> {
private readonly Symbol symbol;
/// <summary>
/// Creats a new instance of the <c>LalrAction</c> class.
/// </summary>
/// <param name="index">Index of the LR state action.</param>
/// <param name="symbol">Symbol associated with the action.</param>
internal LalrAction(int index, Symbol symbol): base(symbol.Owner, index) {
this.symbol = symbol;
}
/// <summary>
/// Gets action type.
/// </summary>
public abstract LalrActionType ActionType {
get;
}
/// <summary>
/// Gets symbol associated with the LR state action.
/// </summary>
public Symbol Symbol {
get {
return symbol;
}
}
public virtual object Target {
get {
return null;
}
}
public override string ToString() {
return string.Format("Action {0}: {1}, Symbol {2}, Target: {3}", Index, ActionType, Symbol, Target);
}
internal abstract TokenParseResult Execute<T>(IParser<T> parser, T token) where T: IToken;
}
}
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