| /******************************************************************************* |
| * Copyright (c) 2017, 2019 IBM Corporation and others. |
| * |
| * 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.core; |
| |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.List; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IModuleDescription; |
| import org.eclipse.jdt.core.ITypeRoot; |
| import org.eclipse.jdt.core.JavaModelException; |
| import org.eclipse.jdt.core.compiler.CharOperation; |
| import org.eclipse.jdt.internal.compiler.env.IModule; |
| import org.eclipse.jdt.internal.compiler.env.IModule.IModuleReference; |
| import org.eclipse.jdt.internal.compiler.env.IModule.IPackageExport; |
| import org.eclipse.jdt.internal.compiler.env.IModule.IService; |
| |
| public interface AbstractModule extends IModuleDescription { |
| |
| /** |
| * Handle for an automatic module. |
| * |
| * <p>Note, that by definition this is mostly a fake, only {@link #getElementName()} provides a useful value.</p> |
| */ |
| static class AutoModule extends NamedMember implements AbstractModule { |
| |
| private boolean nameFromManifest; |
| |
| public AutoModule(JavaElement parent, String name, boolean nameFromManifest) { |
| super(parent, name); |
| this.nameFromManifest = nameFromManifest; |
| } |
| @Override |
| public IJavaElement[] getChildren() throws JavaModelException { |
| return JavaElement.NO_ELEMENTS; // may later answer computed details |
| } |
| @Override |
| public int getFlags() throws JavaModelException { |
| return 0; |
| } |
| @Override |
| public boolean isAutoModule() { |
| return true; |
| } |
| public boolean isAutoNameFromManifest() { |
| return this.nameFromManifest; |
| } |
| @Override |
| public char getHandleMementoDelimiter() { |
| return JavaElement.JEM_MODULE; |
| } |
| @Override |
| public ITypeRoot getTypeRoot() { |
| return null; // has no real CompilationUnit nor ClassFile |
| } |
| @Override |
| public IModuleReference[] getRequiredModules() throws JavaModelException { |
| return ModuleDescriptionInfo.NO_REQUIRES; |
| } |
| @Override |
| public void toStringContent(StringBuffer buffer, String lineDelimiter) throws JavaModelException { |
| buffer.append("automatic module "); //$NON-NLS-1$ |
| buffer.append(this.name); |
| } |
| } |
| |
| // "forward declaration" for a method from JavaElement: |
| abstract Object getElementInfo() throws JavaModelException; |
| |
| default IModule getModuleInfo() throws JavaModelException { |
| return (IModule) getElementInfo(); |
| } |
| @Override |
| default String[] getExportedPackageNames(IModuleDescription targetModule) throws JavaModelException { |
| IModule info = getModuleInfo(); |
| if (info != null) { |
| List<String> result = new ArrayList<>(); |
| for (IPackageExport packageExport : info.exports()) { |
| if (targetModule == null || !packageExport.isQualified() |
| || CharOperation.containsEqual(packageExport.targets(), targetModule.getElementName().toCharArray())) |
| { |
| result.add(new String(packageExport.name())); |
| } |
| } |
| return result.toArray(new String[result.size()]); |
| } |
| return new String[0]; |
| } |
| @Override |
| default String[] getOpenedPackageNames(IModuleDescription targetModule) throws JavaModelException { |
| IModule info = getModuleInfo(); |
| if (info != null) { |
| List<String> result = new ArrayList<>(); |
| for (IPackageExport packageOpen : info.opens()) { |
| if (targetModule == null || !packageOpen.isQualified() |
| || CharOperation.containsEqual(packageOpen.targets(), targetModule.getElementName().toCharArray())) |
| { |
| result.add(new String(packageOpen.name())); |
| } |
| } |
| return result.toArray(new String[result.size()]); |
| } |
| return new String[0]; |
| } |
| default IModuleReference[] getRequiredModules() throws JavaModelException { |
| return getModuleInfo().requires(); |
| } |
| default IPackageExport[] getExportedPackages() throws JavaModelException { |
| return getModuleInfo().exports(); |
| } |
| default IService[] getProvidedServices() throws JavaModelException { |
| return getModuleInfo().provides(); |
| } |
| @Override |
| default String[] getProvidedServiceNames() throws JavaModelException { |
| ArrayList<String> results = new ArrayList<>(); |
| IService[] services = getProvidedServices(); |
| for (IService service : services) { |
| results.add(new String(service.name())); |
| } |
| return results.toArray(new String[0]); |
| |
| } |
| default char[][] getUsedServices() throws JavaModelException { |
| return getModuleInfo().uses(); |
| } |
| @Override |
| default String[] getUsedServiceNames() throws JavaModelException { |
| ArrayList<String> results = new ArrayList<>(); |
| char[][] services = getUsedServices(); |
| for (int i = 0; i < services.length; ++i) { |
| char[] service = services[i]; |
| results.add(new String(service)); |
| } |
| return results.toArray(new String[0]); |
| } |
| default IPackageExport[] getOpenedPackages() throws JavaModelException { |
| return getModuleInfo().opens(); |
| } |
| @Override |
| default String[] getRequiredModuleNames() throws JavaModelException { |
| IModuleReference[] references = getRequiredModules(); |
| return Arrays.stream(references).map(ref -> String.valueOf(ref.name())).toArray(String[]::new); |
| } |
| |
| default String toString(String lineDelimiter) { |
| StringBuffer buffer = new StringBuffer(); |
| try { |
| toStringContent(buffer, lineDelimiter); |
| } catch (JavaModelException e) { |
| // TODO Auto-generated catch block |
| e.printStackTrace(); |
| } |
| return buffer.toString(); |
| } |
| default void toStringContent(StringBuffer buffer, String lineDelimiter) throws JavaModelException { |
| IPackageExport[] exports = getExportedPackages(); |
| IModuleReference[] requires = getRequiredModules(); |
| buffer.append("module "); //$NON-NLS-1$ |
| buffer.append(getElementName()).append(' '); |
| buffer.append('{').append(lineDelimiter); |
| if (exports != null) { |
| for(int i = 0; i < exports.length; i++) { |
| buffer.append("\texports "); //$NON-NLS-1$ |
| buffer.append(exports[i].toString()); |
| buffer.append(lineDelimiter); |
| } |
| } |
| buffer.append(lineDelimiter); |
| if (requires != null) { |
| for(int i = 0; i < requires.length; i++) { |
| buffer.append("\trequires "); //$NON-NLS-1$ |
| if (requires[i].isTransitive()) { |
| buffer.append(" public "); //$NON-NLS-1$ |
| } |
| buffer.append(requires[i].name()); |
| buffer.append(';').append(lineDelimiter); |
| } |
| } |
| buffer.append(lineDelimiter).append('}').toString(); |
| } |
| |
| @Override |
| default int getElementType() { |
| return JAVA_MODULE; |
| } |
| } |