| /******************************************************************************* |
| * Copyright (c) 2015 Ericsson |
| * |
| * All rights reserved. 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.tracecompass.internal.ctf.core.event.metadata.tsdl.integer; |
| |
| import org.antlr.runtime.tree.CommonTree; |
| import org.eclipse.jdt.annotation.NonNull; |
| import org.eclipse.tracecompass.internal.ctf.core.event.metadata.ICommonTreeParser; |
| |
| /** |
| * A reference to the clock map in a given integer. |
| * |
| * @author Matthew Khouzam |
| * |
| */ |
| public final class ClockMapParser implements ICommonTreeParser { |
| |
| private static final @NonNull String EMPTY_STRING = ""; //$NON-NLS-1$ |
| |
| /** |
| * Instance |
| */ |
| public static final ClockMapParser INSTANCE = new ClockMapParser(); |
| |
| private ClockMapParser() { |
| } |
| |
| @Override |
| public String parse(CommonTree tree, ICommonTreeParserParameter param) { |
| String clock = tree.getChild(1).getChild(0).getChild(0).getText(); |
| return clock == null ? EMPTY_STRING : clock; |
| } |
| |
| } |