| /******************************************************************************* |
| * Copyright (c) 2000, 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.aspectj.org.eclipse.jdt.internal.core; |
| |
| import java.io.IOException; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipFile; |
| |
| import org.eclipse.core.resources.IContainer; |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IFolder; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Path; |
| import org.aspectj.org.eclipse.jdt.core.*; |
| import org.aspectj.org.eclipse.jdt.core.compiler.IProblem; |
| import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFileReader; |
| import org.aspectj.org.eclipse.jdt.internal.compiler.classfmt.ClassFormatException; |
| import org.aspectj.org.eclipse.jdt.internal.compiler.env.IBinaryType; |
| import org.aspectj.org.eclipse.jdt.internal.compiler.env.IDependent; |
| import org.aspectj.org.eclipse.jdt.internal.compiler.util.SuffixConstants; |
| import org.aspectj.org.eclipse.jdt.internal.core.util.MementoTokenizer; |
| import org.aspectj.org.eclipse.jdt.internal.core.util.Util; |
| |
| /** |
| * @see IClassFile |
| */ |
| |
| @SuppressWarnings({"rawtypes"}) |
| public class ClassFile extends Openable implements IClassFile, SuffixConstants { |
| |
| protected String name; |
| protected BinaryType binaryType = null; |
| |
| /* |
| * Creates a handle to a class file. |
| */ |
| protected ClassFile(PackageFragment parent, String nameWithoutExtension) { |
| super(parent); |
| this.name = nameWithoutExtension; |
| } |
| |
| /* |
| * @see IClassFile#becomeWorkingCopy(IProblemRequestor, WorkingCopyOwner, IProgressMonitor) |
| */ |
| public ICompilationUnit becomeWorkingCopy(IProblemRequestor problemRequestor, WorkingCopyOwner owner, IProgressMonitor monitor) throws JavaModelException { |
| JavaModelManager manager = JavaModelManager.getJavaModelManager(); |
| CompilationUnit workingCopy = new ClassFileWorkingCopy(this, owner == null ? DefaultWorkingCopyOwner.PRIMARY : owner); |
| JavaModelManager.PerWorkingCopyInfo perWorkingCopyInfo = manager.getPerWorkingCopyInfo(workingCopy, false/*don't create*/, true /*record usage*/, null/*no problem requestor needed*/); |
| if (perWorkingCopyInfo == null) { |
| // close cu and its children |
| close(); |
| |
| BecomeWorkingCopyOperation operation = new BecomeWorkingCopyOperation(workingCopy, problemRequestor); |
| operation.runOperation(monitor); |
| |
| return workingCopy; |
| } |
| return perWorkingCopyInfo.workingCopy; |
| } |
| |
| /** |
| * Creates the children elements for this class file adding the resulting |
| * new handles and info objects to the newElements table. Returns true |
| * if successful, or false if an error is encountered parsing the class file. |
| * |
| * @see Openable |
| * @see Signature |
| */ |
| protected boolean buildStructure(OpenableElementInfo info, IProgressMonitor pm, Map newElements, IResource underlyingResource) throws JavaModelException { |
| IBinaryType typeInfo = getBinaryTypeInfo((IFile) underlyingResource); |
| if (typeInfo == null) { |
| // The structure of a class file is unknown if a class file format errors occurred |
| //during the creation of the diet class file representative of this ClassFile. |
| info.setChildren(new IJavaElement[] {}); |
| return false; |
| } |
| |
| // Make the type |
| IType type = getType(); |
| info.setChildren(new IJavaElement[] {type}); |
| newElements.put(type, typeInfo); |
| |
| // Read children |
| ((ClassFileInfo) info).readBinaryChildren(this, (HashMap) newElements, typeInfo); |
| |
| return true; |
| } |
| /** |
| * @see ICodeAssist#codeComplete(int, ICompletionRequestor) |
| * @deprecated |
| */ |
| public void codeComplete(int offset, ICompletionRequestor requestor) throws JavaModelException { |
| codeComplete(offset, requestor, DefaultWorkingCopyOwner.PRIMARY); |
| } |
| /** |
| * @see ICodeAssist#codeComplete(int, ICompletionRequestor, WorkingCopyOwner) |
| * @deprecated |
| */ |
| public void codeComplete(int offset, ICompletionRequestor requestor, WorkingCopyOwner owner) throws JavaModelException { |
| if (requestor == null) { |
| throw new IllegalArgumentException("Completion requestor cannot be null"); //$NON-NLS-1$ |
| } |
| codeComplete(offset, new org.aspectj.org.eclipse.jdt.internal.codeassist.CompletionRequestorWrapper(requestor), owner); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.aspectj.org.eclipse.jdt.core.ICodeAssist#codeComplete(int, org.aspectj.org.eclipse.jdt.core.CompletionRequestor) |
| */ |
| public void codeComplete(int offset, CompletionRequestor requestor) throws JavaModelException { |
| codeComplete(offset, requestor, DefaultWorkingCopyOwner.PRIMARY); |
| } |
| /* (non-Javadoc) |
| * @see org.aspectj.org.eclipse.jdt.core.ICodeAssist#codeComplete(int, org.aspectj.org.eclipse.jdt.core.CompletionRequestor, org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public void codeComplete(int offset, CompletionRequestor requestor, IProgressMonitor monitor) throws JavaModelException { |
| codeComplete(offset, requestor, DefaultWorkingCopyOwner.PRIMARY, monitor); |
| } |
| /* (non-Javadoc) |
| * @see org.aspectj.org.eclipse.jdt.core.ICodeAssist#codeComplete(int, org.aspectj.org.eclipse.jdt.core.CompletionRequestor, org.aspectj.org.eclipse.jdt.core.WorkingCopyOwner) |
| */ |
| public void codeComplete(int offset, CompletionRequestor requestor, WorkingCopyOwner owner) throws JavaModelException { |
| codeComplete(offset, requestor, owner, null); |
| } |
| /* (non-Javadoc) |
| * @see org.aspectj.org.eclipse.jdt.core.ICodeAssist#codeComplete(int, org.aspectj.org.eclipse.jdt.core.CompletionRequestor, org.aspectj.org.eclipse.jdt.core.WorkingCopyOwner, org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| public void codeComplete(int offset, CompletionRequestor requestor, WorkingCopyOwner owner, IProgressMonitor monitor) throws JavaModelException { |
| String source = getSource(); |
| if (source != null) { |
| BinaryType type = (BinaryType) getType(); |
| BasicCompilationUnit cu = |
| new BasicCompilationUnit( |
| getSource().toCharArray(), |
| null, |
| type.sourceFileName((IBinaryType) type.getElementInfo()), |
| getJavaProject()); // use project to retrieve corresponding .java IFile |
| codeComplete(cu, cu, offset, requestor, owner, null/*extended context isn't computed*/, monitor); |
| } |
| } |
| |
| /** |
| * @see ICodeAssist#codeSelect(int, int) |
| */ |
| public IJavaElement[] codeSelect(int offset, int length) throws JavaModelException { |
| return codeSelect(offset, length, DefaultWorkingCopyOwner.PRIMARY); |
| } |
| /** |
| * @see ICodeAssist#codeSelect(int, int, WorkingCopyOwner) |
| */ |
| public IJavaElement[] codeSelect(int offset, int length, WorkingCopyOwner owner) throws JavaModelException { |
| IBuffer buffer = getBuffer(); |
| char[] contents; |
| if (buffer != null && (contents = buffer.getCharacters()) != null) { |
| BinaryType type = (BinaryType) getType(); |
| BasicCompilationUnit cu = new BasicCompilationUnit(contents, null, type.sourceFileName((IBinaryType) type.getElementInfo())); |
| return super.codeSelect(cu, offset, length, owner); |
| } else { |
| //has no associated souce |
| return new IJavaElement[] {}; |
| } |
| } |
| /** |
| * Returns a new element info for this element. |
| */ |
| protected Object createElementInfo() { |
| return new ClassFileInfo(); |
| } |
| public boolean equals(Object o) { |
| if (!(o instanceof ClassFile)) return false; |
| ClassFile other = (ClassFile) o; |
| return this.name.equals(other.name) && this.parent.equals(other.parent); |
| } |
| public boolean existsUsingJarTypeCache() { |
| if (getPackageFragmentRoot().isArchive()) { |
| JavaModelManager manager = JavaModelManager.getJavaModelManager(); |
| IType type = getType(); |
| Object info = manager.getInfo(type); |
| if (info == JavaModelCache.NON_EXISTING_JAR_TYPE_INFO) |
| return false; |
| else if (info != null) |
| return true; |
| // info is null |
| JavaElementInfo parentInfo = (JavaElementInfo) manager.getInfo(getParent()); |
| if (parentInfo != null) { |
| // if parent is open, this class file must be in its children |
| IJavaElement[] children = parentInfo.getChildren(); |
| for (int i = 0, length = children.length; i < length; i++) { |
| if (this.name.equals(((ClassFile) children[i]).name)) |
| return true; |
| } |
| return false; |
| } |
| try { |
| info = getJarBinaryTypeInfo((PackageFragment) getParent(), true/*fully initialize so as to not keep a reference to the byte array*/); |
| } catch (CoreException e) { |
| // leave info null |
| } catch (IOException e) { |
| // leave info null |
| } catch (ClassFormatException e) { |
| // leave info null |
| } |
| manager.putJarTypeInfo(type, info == null ? JavaModelCache.NON_EXISTING_JAR_TYPE_INFO : info); |
| return info != null; |
| } else |
| return exists(); |
| } |
| |
| /** |
| * Finds the deepest <code>IJavaElement</code> in the hierarchy of |
| * <code>elt</elt>'s children (including <code>elt</code> itself) |
| * which has a source range that encloses <code>position</code> |
| * according to <code>mapper</code>. |
| */ |
| protected IJavaElement findElement(IJavaElement elt, int position, SourceMapper mapper) { |
| SourceRange range = mapper.getSourceRange(elt); |
| if (range == null || position < range.getOffset() || range.getOffset() + range.getLength() - 1 < position) { |
| return null; |
| } |
| if (elt instanceof IParent) { |
| try { |
| IJavaElement[] children = ((IParent) elt).getChildren(); |
| for (int i = 0; i < children.length; i++) { |
| IJavaElement match = findElement(children[i], position, mapper); |
| if (match != null) { |
| return match; |
| } |
| } |
| } catch (JavaModelException npe) { |
| // elt doesn't exist: return the element |
| } |
| } |
| return elt; |
| } |
| /** |
| * @see ITypeRoot#findPrimaryType() |
| */ |
| public IType findPrimaryType() { |
| IType primaryType= getType(); |
| if (primaryType.exists()) { |
| return primaryType; |
| } |
| return null; |
| } |
| public String getAttachedJavadoc(IProgressMonitor monitor) throws JavaModelException { |
| return getType().getAttachedJavadoc(monitor); |
| } |
| /** |
| * Returns the <code>ClassFileReader</code>specific for this IClassFile, based |
| * on its underlying resource, or <code>null</code> if unable to create |
| * the diet class file. |
| * There are two cases to consider:<ul> |
| * <li>a class file corresponding to an IFile resource</li> |
| * <li>a class file corresponding to a zip entry in a JAR</li> |
| * </ul> |
| * |
| * @exception JavaModelException when the IFile resource or JAR is not available |
| * or when this class file is not present in the JAR |
| */ |
| public IBinaryType getBinaryTypeInfo(IFile file) throws JavaModelException { |
| return getBinaryTypeInfo(file, true/*fully initialize so as to not keep a reference to the byte array*/); |
| } |
| public IBinaryType getBinaryTypeInfo(IFile file, boolean fullyInitialize) throws JavaModelException { |
| JavaElement pkg = (JavaElement) getParent(); |
| if (pkg instanceof JarPackageFragment) { |
| try { |
| IBinaryType info = getJarBinaryTypeInfo((PackageFragment) pkg, fullyInitialize); |
| if (info == null) { |
| throw newNotPresentException(); |
| } |
| return info; |
| } catch (ClassFormatException cfe) { |
| //the structure remains unknown |
| if (JavaCore.getPlugin().isDebugging()) { |
| cfe.printStackTrace(System.err); |
| } |
| return null; |
| } catch (IOException ioe) { |
| throw new JavaModelException(ioe, IJavaModelStatusConstants.IO_EXCEPTION); |
| } catch (CoreException e) { |
| if (e instanceof JavaModelException) { |
| throw (JavaModelException)e; |
| } else { |
| throw new JavaModelException(e); |
| } |
| } |
| } else { |
| byte[] contents = Util.getResourceContentsAsByteArray(file); |
| try { |
| return new ClassFileReader(contents, file.getFullPath().toString().toCharArray(), fullyInitialize); |
| } catch (ClassFormatException cfe) { |
| //the structure remains unknown |
| return null; |
| } |
| } |
| } |
| |
| public byte[] getBytes() throws JavaModelException { |
| JavaElement pkg = (JavaElement) getParent(); |
| if (pkg instanceof JarPackageFragment) { |
| JarPackageFragmentRoot root = (JarPackageFragmentRoot) pkg.getParent(); |
| ZipFile zip = null; |
| try { |
| zip = root.getJar(); |
| String entryName = Util.concatWith(((PackageFragment) pkg).names, getElementName(), '/'); |
| ZipEntry ze = zip.getEntry(entryName); |
| if (ze != null) { |
| return org.aspectj.org.eclipse.jdt.internal.compiler.util.Util.getZipEntryByteContent(ze, zip); |
| } |
| throw new JavaModelException(new JavaModelStatus(IJavaModelStatusConstants.ELEMENT_DOES_NOT_EXIST, this)); |
| } catch (IOException ioe) { |
| throw new JavaModelException(ioe, IJavaModelStatusConstants.IO_EXCEPTION); |
| } catch (CoreException e) { |
| if (e instanceof JavaModelException) { |
| throw (JavaModelException)e; |
| } else { |
| throw new JavaModelException(e); |
| } |
| } finally { |
| JavaModelManager.getJavaModelManager().closeZipFile(zip); |
| } |
| } else { |
| IFile file = (IFile) resource(); |
| return Util.getResourceContentsAsByteArray(file); |
| } |
| } |
| private IBinaryType getJarBinaryTypeInfo(PackageFragment pkg, boolean fullyInitialize) throws CoreException, IOException, ClassFormatException { |
| JarPackageFragmentRoot root = (JarPackageFragmentRoot) pkg.getParent(); |
| ZipFile zip = null; |
| try { |
| zip = root.getJar(); |
| String entryName = Util.concatWith(pkg.names, getElementName(), '/'); |
| ZipEntry ze = zip.getEntry(entryName); |
| if (ze != null) { |
| byte contents[] = org.aspectj.org.eclipse.jdt.internal.compiler.util.Util.getZipEntryByteContent(ze, zip); |
| String fileName = root.getHandleIdentifier() + IDependent.JAR_FILE_ENTRY_SEPARATOR + entryName; |
| return new ClassFileReader(contents, fileName.toCharArray(), fullyInitialize); |
| } |
| } finally { |
| JavaModelManager.getJavaModelManager().closeZipFile(zip); |
| } |
| return null; |
| } |
| public IBuffer getBuffer() throws JavaModelException { |
| IStatus status = validateClassFile(); |
| if (status.isOK()) { |
| return super.getBuffer(); |
| } else { |
| switch (status.getCode()) { |
| case IJavaModelStatusConstants.ELEMENT_NOT_ON_CLASSPATH: // don't throw a JavaModelException to be able to open .class file outside the classpath (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=138507 ) |
| case IJavaModelStatusConstants.INVALID_ELEMENT_TYPES: // don't throw a JavaModelException to be able to open .class file in proj==src case without source (see https://bugs.eclipse.org/bugs/show_bug.cgi?id=221904 ) |
| return null; |
| default: |
| throw new JavaModelException((IJavaModelStatus) status); |
| } |
| } |
| } |
| /** |
| * @see IMember |
| */ |
| public IClassFile getClassFile() { |
| return this; |
| } |
| /** |
| * @see IMember#getTypeRoot() |
| */ |
| public ITypeRoot getTypeRoot() { |
| return this; |
| } |
| /** |
| * A class file has a corresponding resource unless it is contained |
| * in a jar. |
| * |
| * @see IJavaElement |
| */ |
| public IResource getCorrespondingResource() throws JavaModelException { |
| IPackageFragmentRoot root= (IPackageFragmentRoot)getParent().getParent(); |
| if (root.isArchive()) { |
| return null; |
| } else { |
| return getUnderlyingResource(); |
| } |
| } |
| /** |
| * @see IClassFile |
| */ |
| public IJavaElement getElementAt(int position) throws JavaModelException { |
| IJavaElement parentElement = getParent(); |
| while (parentElement.getElementType() != IJavaElement.PACKAGE_FRAGMENT_ROOT) { |
| parentElement = parentElement.getParent(); |
| } |
| PackageFragmentRoot root = (PackageFragmentRoot) parentElement; |
| SourceMapper mapper = root.getSourceMapper(); |
| if (mapper == null) { |
| return null; |
| } else { |
| // ensure this class file's buffer is open so that source ranges are computed |
| getBuffer(); |
| |
| IType type = getType(); |
| return findElement(type, position, mapper); |
| } |
| } |
| public IJavaElement getElementAtConsideringSibling(int position) throws JavaModelException { |
| IPackageFragment fragment = (IPackageFragment)getParent(); |
| PackageFragmentRoot root = (PackageFragmentRoot) fragment.getAncestor(IJavaElement.PACKAGE_FRAGMENT_ROOT); |
| SourceMapper mapper = root.getSourceMapper(); |
| if (mapper == null) { |
| return null; |
| } else { |
| int index = this.name.indexOf('$'); |
| int prefixLength = index < 0 ? this.name.length() : index; |
| |
| IType type = null; |
| int start = -1; |
| int end = Integer.MAX_VALUE; |
| IJavaElement[] children = fragment.getChildren(); |
| for (int i = 0; i < children.length; i++) { |
| String childName = children[i].getElementName(); |
| |
| int childIndex = childName.indexOf('$'); |
| int childPrefixLength = childIndex < 0 ? childName.indexOf('.') : childIndex; |
| if (prefixLength == childPrefixLength && this.name.regionMatches(0, childName, 0, prefixLength)) { |
| IClassFile classFile = (IClassFile) children[i]; |
| |
| // ensure this class file's buffer is open so that source ranges are computed |
| classFile.getBuffer(); |
| |
| SourceRange range = mapper.getSourceRange(classFile.getType()); |
| if (range == SourceMapper.UNKNOWN_RANGE) continue; |
| int newStart = range.getOffset(); |
| int newEnd = newStart + range.getLength() - 1; |
| if(newStart > start && newEnd < end |
| && newStart <= position && newEnd >= position) { |
| type = classFile.getType(); |
| start = newStart; |
| end = newEnd; |
| } |
| } |
| } |
| if(type != null) { |
| return findElement(type, position, mapper); |
| } |
| return null; |
| } |
| } |
| public String getElementName() { |
| return this.name + SuffixConstants.SUFFIX_STRING_class; |
| } |
| /** |
| * @see IJavaElement |
| */ |
| public int getElementType() { |
| return CLASS_FILE; |
| } |
| /* |
| * @see JavaElement |
| */ |
| public IJavaElement getHandleFromMemento(String token, MementoTokenizer memento, WorkingCopyOwner owner) { |
| switch (token.charAt(0)) { |
| case JEM_TYPE: |
| if (!memento.hasMoreTokens()) return this; |
| String typeName = memento.nextToken(); |
| JavaElement type = new BinaryType(this, typeName); |
| return type.getHandleFromMemento(memento, owner); |
| } |
| return null; |
| } |
| /** |
| * @see JavaElement#getHandleMemento() |
| */ |
| protected char getHandleMementoDelimiter() { |
| return JavaElement.JEM_CLASSFILE; |
| } |
| /* |
| * @see IJavaElement |
| */ |
| public IPath getPath() { |
| PackageFragmentRoot root = getPackageFragmentRoot(); |
| if (root.isArchive()) { |
| return root.getPath(); |
| } else { |
| return getParent().getPath().append(getElementName()); |
| } |
| } |
| /* |
| * @see IJavaElement |
| */ |
| public IResource resource(PackageFragmentRoot root) { |
| return ((IContainer) ((Openable) this.parent).resource(root)).getFile(new Path(getElementName())); |
| } |
| /** |
| * @see ISourceReference |
| */ |
| public String getSource() throws JavaModelException { |
| IBuffer buffer = getBuffer(); |
| if (buffer == null) { |
| return null; |
| } |
| return buffer.getContents(); |
| } |
| /** |
| * @see ISourceReference |
| */ |
| public ISourceRange getSourceRange() throws JavaModelException { |
| IBuffer buffer = getBuffer(); |
| if (buffer != null) { |
| String contents = buffer.getContents(); |
| if (contents == null) return null; |
| return new SourceRange(0, contents.length()); |
| } else { |
| return null; |
| } |
| } |
| /* |
| * Returns the name of the toplevel type of this class file. |
| */ |
| public String getTopLevelTypeName() { |
| String topLevelTypeName = getElementName(); |
| int firstDollar = topLevelTypeName.indexOf('$'); |
| if (firstDollar != -1) { |
| topLevelTypeName = topLevelTypeName.substring(0, firstDollar); |
| } else { |
| topLevelTypeName = topLevelTypeName.substring(0, topLevelTypeName.length()-SUFFIX_CLASS.length); |
| } |
| return topLevelTypeName; |
| } |
| /** |
| * @see IClassFile |
| */ |
| public IType getType() { |
| if (this.binaryType == null) { |
| this.binaryType = new BinaryType(this, getTypeName()); |
| } |
| return this.binaryType; |
| } |
| public String getTypeName() { |
| // Internal class file name doesn't contain ".class" file extension |
| int lastDollar = this.name.lastIndexOf('$'); |
| return lastDollar > -1 ? Util.localTypeName(this.name, lastDollar, this.name.length()) : this.name; |
| } |
| /* |
| * @see IClassFile |
| */ |
| public ICompilationUnit getWorkingCopy(WorkingCopyOwner owner, IProgressMonitor monitor) throws JavaModelException { |
| CompilationUnit workingCopy = new ClassFileWorkingCopy(this, owner == null ? DefaultWorkingCopyOwner.PRIMARY : owner); |
| JavaModelManager manager = JavaModelManager.getJavaModelManager(); |
| JavaModelManager.PerWorkingCopyInfo perWorkingCopyInfo = |
| manager.getPerWorkingCopyInfo(workingCopy, false/*don't create*/, true/*record usage*/, null/*not used since don't create*/); |
| if (perWorkingCopyInfo != null) { |
| return perWorkingCopyInfo.getWorkingCopy(); // return existing handle instead of the one created above |
| } |
| BecomeWorkingCopyOperation op = new BecomeWorkingCopyOperation(workingCopy, null); |
| op.runOperation(monitor); |
| return workingCopy; |
| } |
| /** |
| * @see IClassFile |
| * @deprecated |
| */ |
| public IJavaElement getWorkingCopy(IProgressMonitor monitor, org.aspectj.org.eclipse.jdt.core.IBufferFactory factory) throws JavaModelException { |
| return getWorkingCopy(BufferFactoryWrapper.create(factory), monitor); |
| } |
| /** |
| * @see Openable |
| */ |
| protected boolean hasBuffer() { |
| return true; |
| } |
| public int hashCode() { |
| return Util.combineHashCodes(this.name.hashCode(), this.parent.hashCode()); |
| } |
| /** |
| * @see IClassFile |
| */ |
| public boolean isClass() throws JavaModelException { |
| return getType().isClass(); |
| } |
| /** |
| * @see IClassFile |
| */ |
| public boolean isInterface() throws JavaModelException { |
| return getType().isInterface(); |
| } |
| /** |
| * Returns true - class files are always read only. |
| */ |
| public boolean isReadOnly() { |
| return true; |
| } |
| private IStatus validateClassFile() { |
| IPackageFragmentRoot root = getPackageFragmentRoot(); |
| try { |
| if (root.getKind() != IPackageFragmentRoot.K_BINARY) |
| return new JavaModelStatus(IJavaModelStatusConstants.INVALID_ELEMENT_TYPES, root); |
| } catch (JavaModelException e) { |
| return e.getJavaModelStatus(); |
| } |
| IJavaProject project = getJavaProject(); |
| return JavaConventions.validateClassFileName(getElementName(), project.getOption(JavaCore.COMPILER_SOURCE, true), project.getOption(JavaCore.COMPILER_COMPLIANCE, true)); |
| } |
| /** |
| * Opens and returns buffer on the source code associated with this class file. |
| * Maps the source code to the children elements of this class file. |
| * If no source code is associated with this class file, |
| * <code>null</code> is returned. |
| * |
| * @see Openable |
| */ |
| protected IBuffer openBuffer(IProgressMonitor pm, Object info) throws JavaModelException { |
| // Check the cache for the top-level type first |
| IType outerMostEnclosingType = getOuterMostEnclosingType(); |
| IBuffer buffer = getBufferManager().getBuffer(outerMostEnclosingType.getClassFile()); |
| if (buffer == null) { |
| SourceMapper mapper = getSourceMapper(); |
| IBinaryType typeInfo = info instanceof IBinaryType ? (IBinaryType) info : null; |
| if (mapper != null) { |
| buffer = mapSource(mapper, typeInfo, outerMostEnclosingType.getClassFile()); |
| } |
| } |
| return buffer; |
| } |
| /** Loads the buffer via SourceMapper, and maps it in SourceMapper */ |
| private IBuffer mapSource(SourceMapper mapper, IBinaryType info, IClassFile bufferOwner) { |
| char[] contents = mapper.findSource(getType(), info); |
| if (contents != null) { |
| // create buffer |
| IBuffer buffer = BufferManager.createBuffer(bufferOwner); |
| if (buffer == null) return null; |
| BufferManager bufManager = getBufferManager(); |
| bufManager.addBuffer(buffer); |
| |
| // set the buffer source |
| if (buffer.getCharacters() == null){ |
| buffer.setContents(contents); |
| } |
| |
| // listen to buffer changes |
| buffer.addBufferChangedListener(this); |
| |
| // do the source mapping |
| mapper.mapSource(getOuterMostEnclosingType(), contents, info); |
| |
| return buffer; |
| } else { |
| // create buffer |
| IBuffer buffer = BufferManager.createNullBuffer(bufferOwner); |
| if (buffer == null) return null; |
| BufferManager bufManager = getBufferManager(); |
| bufManager.addBuffer(buffer); |
| |
| // listen to buffer changes |
| buffer.addBufferChangedListener(this); |
| return buffer; |
| } |
| } |
| /* package */ static String simpleName(char[] className) { |
| if (className == null) |
| return null; |
| String simpleName = new String(unqualifiedName(className)); |
| int lastDollar = simpleName.lastIndexOf('$'); |
| if (lastDollar != -1) |
| return Util.localTypeName(simpleName, lastDollar, simpleName.length()); |
| else |
| return simpleName; |
| } |
| |
| /** Returns the type of the top-level declaring class used to find the source code */ |
| private IType getOuterMostEnclosingType() { |
| IType type = getType(); |
| IType enclosingType = type.getDeclaringType(); |
| while (enclosingType != null) { |
| type = enclosingType; |
| enclosingType = type.getDeclaringType(); |
| } |
| return type; |
| } |
| |
| /** |
| * Returns the Java Model representation of the given name |
| * which is provided in diet class file format, or <code>null</code> |
| * if the given name is <code>null</code>. |
| * |
| * <p><code>ClassFileReader</code> format is similar to "java/lang/Object", |
| * and corresponding Java Model format is "java.lang.Object". |
| */ |
| |
| public static char[] translatedName(char[] name) { |
| if (name == null) |
| return null; |
| int nameLength = name.length; |
| char[] newName= new char[nameLength]; |
| for (int i= 0; i < nameLength; i++) { |
| if (name[i] == '/') { |
| newName[i]= '.'; |
| } else { |
| newName[i]= name[i]; |
| } |
| } |
| return newName; |
| } |
| /** |
| * Returns the Java Model representation of the given names |
| * which are provided in diet class file format, or <code>null</code> |
| * if the given names are <code>null</code>. |
| * |
| * <p><code>ClassFileReader</code> format is similar to "java/lang/Object", |
| * and corresponding Java Model format is "java.lang.Object". |
| */ |
| |
| /* package */ static char[][] translatedNames(char[][] names) { |
| if (names == null) |
| return null; |
| int length = names.length; |
| char[][] newNames = new char[length][]; |
| for(int i = 0; i < length; i++) { |
| newNames[i] = translatedName(names[i]); |
| } |
| return newNames; |
| } |
| /** |
| * Returns the Java Model format of the unqualified class name for the |
| * given className which is provided in diet class file format, |
| * or <code>null</code> if the given className is <code>null</code>. |
| * (This removes the package name, but not enclosing type names). |
| * |
| * <p><code>ClassFileReader</code> format is similar to "java/lang/Object", |
| * and corresponding Java Model simple name format is "Object". |
| */ |
| |
| /* package */ static char[] unqualifiedName(char[] className) { |
| if (className == null) |
| return null; |
| int count = 0; |
| for (int i = className.length - 1; i > -1; i--) { |
| if (className[i] == '/') { |
| char[] name = new char[count]; |
| System.arraycopy(className, i + 1, name, 0, count); |
| return name; |
| } |
| count++; |
| } |
| return className; |
| } |
| |
| /** |
| * @see ICodeAssist#codeComplete(int, ICodeCompletionRequestor) |
| * @deprecated - should use codeComplete(int, ICompletionRequestor) instead |
| */ |
| public void codeComplete(int offset, final org.aspectj.org.eclipse.jdt.core.ICodeCompletionRequestor requestor) throws JavaModelException { |
| |
| if (requestor == null){ |
| codeComplete(offset, (ICompletionRequestor)null); |
| return; |
| } |
| codeComplete( |
| offset, |
| new ICompletionRequestor(){ |
| public void acceptAnonymousType(char[] superTypePackageName,char[] superTypeName, char[][] parameterPackageNames,char[][] parameterTypeNames,char[][] parameterNames,char[] completionName,int modifiers,int completionStart,int completionEnd, int relevance) { |
| // ignore |
| } |
| public void acceptClass(char[] packageName, char[] className, char[] completionName, int modifiers, int completionStart, int completionEnd, int relevance) { |
| requestor.acceptClass(packageName, className, completionName, modifiers, completionStart, completionEnd); |
| } |
| public void acceptError(IProblem error) { |
| // was disabled in 1.0 |
| } |
| public void acceptField(char[] declaringTypePackageName, char[] declaringTypeName, char[] fieldName, char[] typePackageName, char[] typeName, char[] completionName, int modifiers, int completionStart, int completionEnd, int relevance) { |
| requestor.acceptField(declaringTypePackageName, declaringTypeName, fieldName, typePackageName, typeName, completionName, modifiers, completionStart, completionEnd); |
| } |
| public void acceptInterface(char[] packageName,char[] interfaceName,char[] completionName,int modifiers,int completionStart,int completionEnd, int relevance) { |
| requestor.acceptInterface(packageName, interfaceName, completionName, modifiers, completionStart, completionEnd); |
| } |
| public void acceptKeyword(char[] keywordName,int completionStart,int completionEnd, int relevance){ |
| requestor.acceptKeyword(keywordName, completionStart, completionEnd); |
| } |
| public void acceptLabel(char[] labelName,int completionStart,int completionEnd, int relevance){ |
| requestor.acceptLabel(labelName, completionStart, completionEnd); |
| } |
| public void acceptLocalVariable(char[] localVarName,char[] typePackageName,char[] typeName,int modifiers,int completionStart,int completionEnd, int relevance){ |
| // ignore |
| } |
| public void acceptMethod(char[] declaringTypePackageName,char[] declaringTypeName,char[] selector,char[][] parameterPackageNames,char[][] parameterTypeNames,char[][] parameterNames,char[] returnTypePackageName,char[] returnTypeName,char[] completionName,int modifiers,int completionStart,int completionEnd, int relevance){ |
| // skip parameter names |
| requestor.acceptMethod(declaringTypePackageName, declaringTypeName, selector, parameterPackageNames, parameterTypeNames, returnTypePackageName, returnTypeName, completionName, modifiers, completionStart, completionEnd); |
| } |
| public void acceptMethodDeclaration(char[] declaringTypePackageName,char[] declaringTypeName,char[] selector,char[][] parameterPackageNames,char[][] parameterTypeNames,char[][] parameterNames,char[] returnTypePackageName,char[] returnTypeName,char[] completionName,int modifiers,int completionStart,int completionEnd, int relevance){ |
| // ignore |
| } |
| public void acceptModifier(char[] modifierName,int completionStart,int completionEnd, int relevance){ |
| requestor.acceptModifier(modifierName, completionStart, completionEnd); |
| } |
| public void acceptPackage(char[] packageName,char[] completionName,int completionStart,int completionEnd, int relevance){ |
| requestor.acceptPackage(packageName, completionName, completionStart, completionEnd); |
| } |
| public void acceptType(char[] packageName,char[] typeName,char[] completionName,int completionStart,int completionEnd, int relevance){ |
| requestor.acceptType(packageName, typeName, completionName, completionStart, completionEnd); |
| } |
| public void acceptVariableName(char[] typePackageName,char[] typeName,char[] varName,char[] completionName,int completionStart,int completionEnd, int relevance){ |
| // ignore |
| } |
| }); |
| } |
| |
| protected IStatus validateExistence(IResource underlyingResource) { |
| // check whether the class file can be opened |
| IStatus status = validateClassFile(); |
| if (!status.isOK()) |
| return status; |
| if (underlyingResource != null) { |
| if (!underlyingResource.isAccessible()) |
| return newDoesNotExistStatus(); |
| PackageFragmentRoot root; |
| if ((underlyingResource instanceof IFolder) && (root = getPackageFragmentRoot()).isArchive()) { // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=204652 |
| return root.newDoesNotExistStatus(); |
| } |
| } |
| return JavaModelStatus.VERIFIED_OK; |
| } |
| public ISourceRange getNameRange() { |
| return null; |
| } |
| } |