| /******************************************************************************* |
| * Copyright (c) 2008 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *********************************************************************************/ |
| |
| package org.eclipse.cdt.core.dom.lrparser.lpgextensions; |
| |
| /** |
| * Provides trial, undo, and final actions for the |
| * TrialUndoBacktrackingParser. |
| */ |
| public interface ITrialUndoActionProvider<RULE_DATA> { |
| /** |
| * Invokes the trial action that corresponds to the given rule number. |
| */ |
| boolean trialAction(int ruleNumber); |
| |
| /** |
| * Invokes the undo action that corresponds to the given rule number. |
| */ |
| void undoAction(int ruleNumber); |
| |
| /** |
| * Invokes the final action that corresponds to the given rule number. |
| */ |
| void finalAction(int ruleNumber); |
| |
| /** |
| * Sets the given Rule as the active rule for this provider. |
| */ |
| void setActiveRule(Rule<RULE_DATA> rule); |
| |
| /** |
| * Returns the active rule for this provider. |
| */ |
| Rule<RULE_DATA> getActiveRule(); |
| } |