| /******************************************************************************* |
| * 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.internal.core; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.jdt.core.*; |
| import org.eclipse.jdt.core.IClassFile; |
| import org.eclipse.jdt.core.IField; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IPackageFragment; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.JavaModelException; |
| import org.eclipse.jdt.core.Signature; |
| import org.eclipse.jdt.core.compiler.CharOperation; |
| import org.eclipse.jdt.internal.compiler.env.IBinaryField; |
| import org.eclipse.jdt.internal.compiler.env.IBinaryMethod; |
| import org.eclipse.jdt.internal.compiler.env.IBinaryNestedType; |
| import org.eclipse.jdt.internal.compiler.env.IBinaryType; |
| import org.eclipse.jdt.internal.compiler.util.SuffixConstants; |
| |
| /** |
| * Element info for <code>ClassFile</code> handles. |
| */ |
| |
| /* package */ class ClassFileInfo extends OpenableElementInfo implements SuffixConstants { |
| /** |
| * The children of the <code>BinaryType</code> corresponding to our |
| * <code>ClassFile</code>. These are kept here because we don't have |
| * access to the <code>BinaryType</code> info (<code>ClassFileReader</code>). |
| * <p> |
| * The children are lazily initialized, on the first call to |
| * <code>getBinaryChildren()</code>, which in turn is called by |
| * <code>BinaryType.getChildren()</code>. |
| */ |
| protected JavaElement[] binaryChildren = null; |
| /* |
| * The type parameters in this class file. |
| */ |
| protected ITypeParameter[] typeParameters; |
| /** |
| * Back-pointer to the IClassFile to allow lazy initialization. |
| */ |
| protected ClassFile classFile = null; |
| /** |
| * Creates a new <code>ClassFileInfo</code> for <code>classFile</code>. |
| */ |
| ClassFileInfo(ClassFile classFile) { |
| this.classFile = classFile; |
| } |
| /** |
| * Creates the handles and infos for the fields of the given binary type. |
| * Adds new handles to the given vector. |
| */ |
| private void generateFieldInfos(IType type, IBinaryType typeInfo, HashMap newElements, ArrayList childrenHandles) { |
| // Make the fields |
| IBinaryField[] fields = typeInfo.getFields(); |
| if (fields == null) { |
| return; |
| } |
| JavaModelManager manager = JavaModelManager.getJavaModelManager(); |
| for (int i = 0, fieldCount = fields.length; i < fieldCount; i++) { |
| IBinaryField fieldInfo = fields[i]; |
| IField field = new BinaryField((JavaElement)type, manager.intern(new String(fieldInfo.getName()))); |
| newElements.put(field, fieldInfo); |
| childrenHandles.add(field); |
| } |
| } |
| /** |
| * Creates the handles for the inner types of the given binary type. |
| * Adds new handles to the given vector. |
| */ |
| private void generateInnerClassHandles(IType type, IBinaryType typeInfo, ArrayList childrenHandles) { |
| // Add inner types |
| // If the current type is an inner type, innerClasses returns |
| // an extra entry for the current type. This entry must be removed. |
| // Can also return an entry for the enclosing type of an inner type. |
| IBinaryNestedType[] innerTypes = typeInfo.getMemberTypes(); |
| if (innerTypes != null) { |
| for (int i = 0, typeCount = innerTypes.length; i < typeCount; i++) { |
| IBinaryNestedType binaryType = innerTypes[i]; |
| IClassFile parentClassFile= ((IPackageFragment)this.classFile.getParent()).getClassFile(new String(ClassFile.unqualifiedName(binaryType.getName())) + SUFFIX_STRING_class); |
| IType innerType = new BinaryType((JavaElement)parentClassFile, ClassFile.simpleName(binaryType.getName())); |
| childrenHandles.add(innerType); |
| } |
| } |
| } |
| /** |
| * Creates the handles and infos for the methods of the given binary type. |
| * Adds new handles to the given vector. |
| */ |
| private void generateMethodInfos(IType type, IBinaryType typeInfo, HashMap newElements, ArrayList childrenHandles, ArrayList typeParameterHandles) { |
| IBinaryMethod[] methods = typeInfo.getMethods(); |
| if (methods == null) { |
| return; |
| } |
| for (int i = 0, methodCount = methods.length; i < methodCount; i++) { |
| IBinaryMethod methodInfo = methods[i]; |
| // TODO (jerome) filter out synthetic members |
| // indexer should not index them as well |
| // if ((methodInfo.getModifiers() & IConstants.AccSynthetic) != 0) continue; // skip synthetic |
| char[] signature = methodInfo.getGenericSignature(); |
| if (signature == null) signature = methodInfo.getMethodDescriptor(); |
| String[] pNames = null; |
| try { |
| pNames = Signature.getParameterTypes(new String(signature)); |
| } catch (IllegalArgumentException e) { |
| // protect against malformed .class file (e.g. com/sun/crypto/provider/SunJCE_b.class has a 'a' generic signature) |
| signature = methodInfo.getMethodDescriptor(); |
| pNames = Signature.getParameterTypes(new String(signature)); |
| } |
| char[][] paramNames= new char[pNames.length][]; |
| for (int j= 0; j < pNames.length; j++) { |
| paramNames[j]= pNames[j].toCharArray(); |
| } |
| char[][] parameterTypes = ClassFile.translatedNames(paramNames); |
| JavaModelManager manager = JavaModelManager.getJavaModelManager(); |
| String selector = new String(methodInfo.getSelector()); |
| if (methodInfo.isConstructor()) { |
| selector =type.getElementName(); |
| } |
| selector = manager.intern(selector); |
| for (int j= 0; j < pNames.length; j++) { |
| pNames[j]= manager.intern(new String(parameterTypes[j])); |
| } |
| BinaryMethod method = new BinaryMethod((JavaElement)type, selector, pNames); |
| childrenHandles.add(method); |
| |
| // ensure that 2 binary methods with the same signature but with different return types have different occurence counts. |
| // (case of bridge methods in 1.5) |
| while (newElements.containsKey(method)) |
| method.occurrenceCount++; |
| |
| newElements.put(method, methodInfo); |
| |
| generateTypeParameterInfos(method, signature, newElements, typeParameterHandles); |
| } |
| } |
| /** |
| * Creates the handles and infos for the type parameter of the given binary member. |
| * Adds new handles to the given vector. |
| */ |
| private void generateTypeParameterInfos(BinaryMember parent, char[] signature, HashMap newElements, ArrayList typeParameterHandles) { |
| if (signature == null) return; |
| char[][] typeParameterSignatures = Signature.getTypeParameters(signature); |
| for (int i = 0, typeParameterCount = typeParameterSignatures.length; i < typeParameterCount; i++) { |
| char[] typeParameterSignature = typeParameterSignatures[i]; |
| char[] typeParameterName = Signature.getTypeVariable(typeParameterSignature); |
| char[][] typeParameterBoundSignatures = Signature.getTypeParameterBounds(typeParameterSignature); |
| int boundLength = typeParameterBoundSignatures.length; |
| char[][] typeParameterBounds = new char[boundLength][]; |
| for (int j = 0; j < boundLength; j++) { |
| typeParameterBounds[j] = Signature.toCharArray(typeParameterBoundSignatures[j]); |
| CharOperation.replace(typeParameterBounds[j], '/', '.'); |
| } |
| TypeParameter typeParameter = new TypeParameter(parent, new String(typeParameterName)); |
| TypeParameterElementInfo info = new TypeParameterElementInfo(); |
| info.bounds = typeParameterBounds; |
| typeParameterHandles.add(typeParameter); |
| |
| // ensure that 2 binary methods with the same signature but with different return types have different occurence counts. |
| // (case of bridge methods in 1.5) |
| while (newElements.containsKey(typeParameter)) |
| typeParameter.occurrenceCount++; |
| |
| newElements.put(typeParameter, info); |
| } |
| } |
| /** |
| * Returns the list of children (<code>BinaryMember</code>s) of the |
| * <code>BinaryType</code> of our <code>ClassFile</code>. |
| */ |
| IJavaElement[] getBinaryChildren(HashMap newElements) { |
| if (this.binaryChildren == null) { |
| readBinaryChildren(newElements, null/*type info not known here*/); |
| } |
| return this.binaryChildren; |
| } |
| /** |
| * Returns true iff the <code>readBinaryChildren</code> has already |
| * been called. |
| */ |
| boolean hasReadBinaryChildren() { |
| return this.binaryChildren != null; |
| } |
| /** |
| * Creates the handles for <code>BinaryMember</code>s defined in this |
| * <code>ClassFile</code> and adds them to the |
| * <code>JavaModelManager</code>'s cache. |
| */ |
| protected void readBinaryChildren(HashMap newElements, IBinaryType typeInfo) { |
| ArrayList childrenHandles = new ArrayList(); |
| BinaryType type = null; |
| try { |
| type = (BinaryType) this.classFile.getType(); |
| if (typeInfo == null) { |
| typeInfo = (IBinaryType) newElements.get(type); |
| if (typeInfo == null) { |
| // create a classfile reader |
| typeInfo = this.classFile.getBinaryTypeInfo((IFile)this.classFile.getResource()); |
| } |
| } |
| } catch (JavaModelException npe) { |
| return; |
| } |
| ArrayList typeParameterHandles = new ArrayList(); |
| if (typeInfo != null) { //may not be a valid class file |
| generateTypeParameterInfos(type, typeInfo.getGenericSignature(), newElements, typeParameterHandles); |
| generateFieldInfos(type, typeInfo, newElements, childrenHandles); |
| generateMethodInfos(type, typeInfo, newElements, childrenHandles, typeParameterHandles); |
| generateInnerClassHandles(type, typeInfo, childrenHandles); // Note inner class are separate openables that are not opened here: no need to pass in newElements |
| } |
| |
| this.binaryChildren = new JavaElement[childrenHandles.size()]; |
| childrenHandles.toArray(this.binaryChildren); |
| int typeParameterHandleSize = typeParameterHandles.size(); |
| if (typeParameterHandleSize == 0) { |
| this.typeParameters = TypeParameter.NO_TYPE_PARAMETERS; |
| } else { |
| this.typeParameters = new ITypeParameter[typeParameterHandleSize]; |
| typeParameterHandles.toArray(this.typeParameters); |
| } |
| } |
| /** |
| * Removes the binary children handles and remove their infos from |
| * the <code>JavaModelManager</code>'s cache. |
| */ |
| void removeBinaryChildren() throws JavaModelException { |
| if (this.binaryChildren != null) { |
| JavaModelManager manager = JavaModelManager.getJavaModelManager(); |
| for (int i = 0; i <this.binaryChildren.length; i++) { |
| JavaElement child = this.binaryChildren[i]; |
| if (child instanceof BinaryType) { |
| manager.removeInfoAndChildren((JavaElement)child.getParent()); |
| } else { |
| manager.removeInfoAndChildren(child); |
| } |
| } |
| this.binaryChildren = JavaElement.NO_ELEMENTS; |
| } |
| if (this.typeParameters != null) { |
| JavaModelManager manager = JavaModelManager.getJavaModelManager(); |
| for (int i = 0; i <this.typeParameters.length; i++) { |
| TypeParameter typeParameter = (TypeParameter) this.typeParameters[i]; |
| manager.removeInfoAndChildren(typeParameter); |
| } |
| this.typeParameters = TypeParameter.NO_TYPE_PARAMETERS; |
| } |
| } |
| } |