| /******************************************************************************* |
| * Copyright (c) 2011, 2016 itemis AG (http://www.itemis.eu) and others. |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0. |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| *******************************************************************************/ |
| package org.eclipse.xtext.xbase.lib; |
| |
| import com.google.common.annotations.GwtCompatible; |
| |
| /** |
| * Utilities to print information to the console. |
| * |
| * @author Sven Efftinge - Initial contribution and API |
| */ |
| @GwtCompatible public class InputOutput { |
| |
| /** |
| * Prints a newline to standard out, by delegating directly to <code>System.out.println()</code> |
| * @since 2.3 |
| */ |
| public static void println() { |
| System.out.println(); |
| } |
| /** |
| * Prints the given {@code object} to {@link System#out System.out} and terminate the line. Useful to log partial |
| * expressions to trap errors, e.g. the following is possible: <code>println(1 + println(2)) + 3</code> |
| * |
| * @param object |
| * the to-be-printed object |
| * @return the printed object. |
| */ |
| public static <T> T println(T object) { |
| System.out.println(object); |
| return object; |
| } |
| |
| /** |
| * Prints the given {@code object} to {@link System#out System.out}. Useful to log partial expressions to trap |
| * errors, e.g. the following is possible: <code>1 + print(2) + 3</code> |
| * |
| * @param o |
| * the to-be-printed object |
| * @return the printed object. |
| */ |
| public static <T> T print(T o) { |
| System.out.print(o); |
| return o; |
| } |
| } |