| /******************************************************************************* |
| * Copyright (c) 2000, 2004 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.core.dom; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.compiler.CharOperation; |
| import org.eclipse.jdt.internal.compiler.env.INameEnvironment; |
| import org.eclipse.jdt.internal.core.NameLookup; |
| import org.eclipse.jdt.internal.core.SearchableEnvironment; |
| |
| /** |
| * Internal implementation of package bindings. |
| */ |
| class PackageBinding implements IPackageBinding { |
| |
| private static final String[] NO_NAME_COMPONENTS = new String[0]; |
| private static final String UNNAMED = ""; //$NON-NLS-1$ |
| private static final char PACKAGE_NAME_SEPARATOR = '.'; |
| |
| private org.eclipse.jdt.internal.compiler.lookup.PackageBinding binding; |
| private String name; |
| private String[] components; |
| |
| PackageBinding(org.eclipse.jdt.internal.compiler.lookup.PackageBinding binding, BindingResolver resolver) { |
| this.binding = binding; |
| } |
| |
| /* |
| * @see IBinding#getName() |
| */ |
| public String getName() { |
| if (name == null) { |
| computeNameAndComponents(); |
| } |
| return name; |
| } |
| |
| /* |
| * @see IPackageBinding#isUnnamed() |
| */ |
| public boolean isUnnamed() { |
| return getName().equals(UNNAMED); |
| } |
| |
| /* |
| * @see IPackageBinding#getNameComponents() |
| */ |
| public String[] getNameComponents() { |
| if (components == null) { |
| computeNameAndComponents(); |
| } |
| return components; |
| } |
| |
| /* |
| * @see IBinding#getKind() |
| */ |
| public int getKind() { |
| return IBinding.PACKAGE; |
| } |
| |
| /* |
| * @see IBinding#getModifiers() |
| */ |
| public int getModifiers() { |
| return -1; |
| } |
| |
| /* |
| * @see IBinding#isDeprecated() |
| */ |
| public boolean isDeprecated() { |
| return false; |
| } |
| |
| /** |
| * @see IBinding#isSynthetic() |
| */ |
| public boolean isSynthetic() { |
| return false; |
| } |
| |
| /* |
| * @see IBinding#getJavaElement() |
| */ |
| public IJavaElement getJavaElement() { |
| INameEnvironment nameEnvironment = this.binding.environment.nameEnvironment; // a package binding always has a LooupEnvironment set |
| if (!(nameEnvironment instanceof SearchableEnvironment)) return null; |
| NameLookup nameLookup = ((SearchableEnvironment) nameEnvironment).nameLookup; |
| if (nameLookup == null) return null; |
| IJavaElement[] pkgs = nameLookup.findPackageFragments(getName(), false/*exact match*/); |
| if (pkgs == null) return null; |
| return pkgs[0]; |
| } |
| |
| /* |
| * @see IBinding#getKey() |
| */ |
| public String getKey() { |
| return new String(this.binding.computeUniqueKey()); |
| } |
| |
| /* |
| * @see IBinding#isEqualTo(Binding) |
| * @since 3.1 |
| */ |
| public boolean isEqualTo(IBinding other) { |
| if (other == this) { |
| // identical binding - equal (key or no key) |
| return true; |
| } |
| if (other == null) { |
| // other binding missing |
| return false; |
| } |
| if (!(other instanceof PackageBinding)) { |
| return false; |
| } |
| org.eclipse.jdt.internal.compiler.lookup.PackageBinding packageBinding2 = ((PackageBinding) other).binding; |
| return CharOperation.equals(this.binding.compoundName, packageBinding2.compoundName); |
| } |
| |
| private void computeNameAndComponents() { |
| char[][] compoundName = this.binding.compoundName; |
| if (compoundName == CharOperation.NO_CHAR_CHAR || compoundName == null) { |
| name = UNNAMED; |
| components = NO_NAME_COMPONENTS; |
| } else { |
| int length = compoundName.length; |
| components = new String[length]; |
| StringBuffer buffer = new StringBuffer(); |
| for (int i = 0; i < length - 1; i++) { |
| components[i] = new String(compoundName[i]); |
| buffer.append(compoundName[i]).append(PACKAGE_NAME_SEPARATOR); |
| } |
| components[length - 1] = new String(compoundName[length - 1]); |
| buffer.append(compoundName[length - 1]); |
| name = buffer.toString(); |
| } |
| } |
| |
| public IResolvedAnnotation[] getAnnotations() { |
| throw new UnsupportedOperationException("NYI"); //$NON-NLS-1$ |
| } |
| |
| /* |
| * For debugging purpose only. |
| * @see java.lang.Object#toString() |
| */ |
| public String toString() { |
| return this.binding.toString(); |
| } |
| } |