| /******************************************************************************* |
| * Copyright (c) 2007, 2013 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.pde.api.tools.internal.comparator; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.pde.api.tools.internal.util.Util; |
| |
| /** |
| * Represents a type parameter inside a generic signature |
| */ |
| class TypeParameterDescriptor { |
| private static final String JAVA_LANG_OBJECT = "java.lang.Object"; //$NON-NLS-1$ |
| String classBound; |
| List<String> interfaceBounds; |
| String name; |
| |
| public TypeParameterDescriptor(String name) { |
| this.name = name; |
| } |
| |
| public void addInterfaceBound(String bound) { |
| if (this.interfaceBounds == null) { |
| this.interfaceBounds = new ArrayList<>(); |
| } |
| this.interfaceBounds.add(bound); |
| } |
| |
| public void setClassBound(String bound) { |
| if (JAVA_LANG_OBJECT.equals(bound)) { |
| // we consider Object as an implicit bound |
| // <E> is implicitly <E extends Object> |
| return; |
| } |
| this.classBound = bound; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder buffer = new StringBuilder(); |
| buffer.append("type parameter ").append(this.name).append(" : ").append(Util.LINE_DELIMITER); //$NON-NLS-1$ //$NON-NLS-2$ |
| if (this.classBound != null) { |
| buffer.append("class bound : ").append(this.classBound).append(Util.LINE_DELIMITER); //$NON-NLS-1$ |
| } |
| if (this.interfaceBounds != null) { |
| buffer.append("interface bounds : "); //$NON-NLS-1$ |
| int i = 0; |
| for (String string : this.interfaceBounds) { |
| if (i > 0) { |
| buffer.append(','); |
| } |
| i++; |
| buffer.append(string); |
| } |
| buffer.append(Util.LINE_DELIMITER); |
| } |
| return String.valueOf(buffer); |
| } |
| } |