| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.jdt.ui.tests.typeconstraints; |
| |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.dom.ITypeBinding; |
| |
| public class PrettySignatures { |
| |
| public static String get(ITypeBinding binding) { |
| if (binding.isTypeVariable()) { |
| return getTypeVariable(binding); |
| } |
| return getPlain(binding); |
| } |
| |
| private static String getPlain(ITypeBinding binding) { |
| if (binding.isPrimitive()) { |
| return binding.getName(); |
| } else if (binding.isArray()) { |
| return getPlainArrayType(binding); |
| } else if (binding.isRawType()) { |
| return getPlainRawType(binding); |
| } else if (binding.isGenericType()) { |
| return getPlainGenericType(binding); |
| } else if (binding.isParameterizedType()) { |
| return getPlainParameterizedType(binding); |
| } else if (binding.isTypeVariable()) { |
| return getPlainTypeVariable(binding); |
| } else if (binding.isWildcardType()) { |
| if (binding.isUpperbound()) { |
| return getPlainExtendsWildCardType(binding); |
| } else { |
| return getPlainSuperWildCardType(binding); |
| } |
| } else if (binding.isCapture()) { |
| return getPlainCaptureType(binding); |
| } |
| return getPlainStandardType(binding); |
| } |
| |
| private static String getPlainCaptureType(ITypeBinding binding) { |
| StringBuffer result= new StringBuffer("capture-of "); |
| result.append(PrettySignatures.getPlain(binding.getWildcard())); |
| return result.toString(); |
| } |
| |
| private static String getPlainSuperWildCardType(ITypeBinding binding) { |
| StringBuffer result= new StringBuffer("?"); |
| ITypeBinding bound= binding.getBound(); |
| if (bound != null) { |
| result.append(" super "); |
| result.append(PrettySignatures.getPlain(bound)); |
| } |
| return result.toString(); |
| } |
| |
| private static String getPlainExtendsWildCardType(ITypeBinding binding) { |
| StringBuffer result= new StringBuffer("?"); |
| ITypeBinding bound= binding.getBound(); |
| if (bound != null) { |
| result.append(" extends "); |
| result.append(PrettySignatures.getPlain(bound)); |
| } |
| return result.toString(); |
| } |
| |
| private static String getPlainParameterizedType(ITypeBinding binding) { |
| StringBuffer result= new StringBuffer(getQualifiedName(binding)); |
| ITypeBinding[] typeArguments= binding.getTypeArguments(); |
| result.append("<"); //$NON-NLS-1$ |
| result.append(PrettySignatures.getPlain(typeArguments[0])); |
| for (int i= 1; i < typeArguments.length; i++) { |
| result.append(", "); //$NON-NLS-1$ |
| result.append(PrettySignatures.getPlain(typeArguments[i])); |
| } |
| result.append(">"); //$NON-NLS-1$ |
| return result.toString(); |
| } |
| |
| private static String getPlainGenericType(ITypeBinding binding) { |
| StringBuffer result= new StringBuffer(getQualifiedName(binding)); |
| ITypeBinding[] typeParameters= binding.getTypeParameters(); |
| result.append("<"); //$NON-NLS-1$ |
| result.append(PrettySignatures.get(typeParameters[0])); |
| for (int i= 1; i < typeParameters.length; i++) { |
| result.append(", "); //$NON-NLS-1$ |
| result.append(PrettySignatures.get(typeParameters[i])); |
| } |
| result.append(">"); //$NON-NLS-1$ |
| return result.toString(); |
| } |
| |
| private static String getTypeVariable(ITypeBinding binding) { |
| ITypeBinding[] bounds= binding.getTypeBounds(); |
| if (bounds.length == 1 && bounds[0].getQualifiedName().equals("java.lang.Object")) |
| return binding.getName(); |
| |
| StringBuffer result= new StringBuffer(binding.getName()); |
| if (bounds.length > 0) { |
| result.append(" extends "); //$NON-NLS-1$ |
| result.append(PrettySignatures.getPlain(bounds[0])); |
| for (int i= 1; i < bounds.length; i++) { |
| result.append(" & "); //$NON-NLS-1$ |
| result.append(PrettySignatures.getPlain(bounds[i])); |
| } |
| } |
| return result.toString(); |
| } |
| |
| private static String getPlainTypeVariable(ITypeBinding binding) { |
| return binding.getName(); |
| } |
| |
| private static String getPlainRawType(ITypeBinding binding) { |
| return getQualifiedName(binding); |
| } |
| |
| private static String getPlainArrayType(ITypeBinding binding) { |
| StringBuffer result= new StringBuffer(PrettySignatures.getPlain(binding.getElementType())); |
| for (int i= 0; i < binding.getDimensions(); i++) { |
| result.append("[]"); |
| } |
| return result.toString(); |
| } |
| |
| private static String getPlainStandardType(ITypeBinding binding) { |
| return getQualifiedName(binding); |
| } |
| |
| private static String getQualifiedName(ITypeBinding binding) { |
| if (binding.isLocal()) |
| return ((IType)binding.getJavaElement()).getFullyQualifiedName('.'); |
| String result= binding.getQualifiedName(); |
| if (binding.isParameterizedType()) { |
| int index= result.indexOf('<'); |
| if (index != -1) |
| return result.substring(0, index); |
| } |
| return result; |
| } |
| } |