/*******************************************************************************
* Copyright (c) 2005, 2011 BEA Systems, Inc.
* 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:
* tyeung@bea.com - initial API and implementation
* IBM Corporation - implemented methods from IBinding
* IBM Corporation - renamed from ResolvedAnnotation to AnnotationBinding
* IBM Corporation - Fix for 328969
*******************************************************************************/
package org.eclipse.jdt.core.dom;
import org.eclipse.jdt.core.IAnnotatable;
import org.eclipse.jdt.core.ICompilationUnit;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.IMember;
import org.eclipse.jdt.internal.compiler.lookup.ElementValuePair;
import org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import org.eclipse.jdt.internal.compiler.lookup.TagBits;
import org.eclipse.jdt.internal.compiler.util.*;
/**
* Internal class
*/
class AnnotationBinding implements IAnnotationBinding {
static final AnnotationBinding[] NoAnnotations = new AnnotationBinding[0];
private org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding binding;
private BindingResolver bindingResolver;
private String key;
AnnotationBinding(org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding annotation, BindingResolver resolver) {
if (annotation == null)
throw new IllegalStateException();
this.binding = annotation;
this.bindingResolver = resolver;
}
public IAnnotationBinding[] getAnnotations() {
return NoAnnotations;
}
public ITypeBinding getAnnotationType() {
ITypeBinding typeBinding = this.bindingResolver.getTypeBinding(this.binding.getAnnotationType());
if (typeBinding == null)
return null;
return typeBinding;
}
public IMemberValuePairBinding[] getDeclaredMemberValuePairs() {
ReferenceBinding typeBinding = this.binding.getAnnotationType();
if (typeBinding == null || ((typeBinding.tagBits & TagBits.HasMissingType) != 0)) {
return MemberValuePairBinding.NoPair;
}
ElementValuePair[] internalPairs = this.binding.getElementValuePairs();
int length = internalPairs.length;
IMemberValuePairBinding[] pairs = length == 0 ? MemberValuePairBinding.NoPair : new MemberValuePairBinding[length];
int counter = 0;
for (int i = 0; i < length; i++) {
ElementValuePair valuePair = internalPairs[i];
if (valuePair.binding == null) continue;
pairs[counter++] = this.bindingResolver.getMemberValuePairBinding(valuePair);
}
if (counter == 0) return MemberValuePairBinding.NoPair;
if (counter != length) {
// resize
System.arraycopy(pairs, 0, (pairs = new MemberValuePairBinding[counter]), 0, counter);
}
return pairs;
}
public IMemberValuePairBinding[] getAllMemberValuePairs() {
IMemberValuePairBinding[] pairs = getDeclaredMemberValuePairs();
ReferenceBinding typeBinding = this.binding.getAnnotationType();
if (typeBinding == null || ((typeBinding.tagBits & TagBits.HasMissingType) != 0)) return pairs;
MethodBinding[] methods = typeBinding.availableMethods(); // resilience
int methodLength = methods == null ? 0 : methods.length;
if (methodLength == 0) return pairs;
int declaredLength = pairs.length;
if (declaredLength == methodLength)
return pairs;
HashtableOfObject table = new HashtableOfObject(declaredLength);
for (int i = 0; i < declaredLength; i++) {
char[] internalName = ((MemberValuePairBinding) pairs[i]).internalName();
if (internalName == null) continue;
table.put(internalName, pairs[i]);
}
// handle case of more methods than declared members
IMemberValuePairBinding[] allPairs = new IMemberValuePairBinding[methodLength];
for (int i = 0; i < methodLength; i++) {
Object pair = table.get(methods[i].selector);
allPairs[i] = pair == null ? new DefaultValuePairBinding(methods[i], this.bindingResolver) : (IMemberValuePairBinding) pair;
}
return allPairs;
}
public IJavaElement getJavaElement() {
if (!(this.bindingResolver instanceof DefaultBindingResolver)) return null;
ASTNode node = (ASTNode) ((DefaultBindingResolver) this.bindingResolver).bindingsToAstNodes.get(this);
if (!(node instanceof Annotation)) return null;
ASTNode parent = node.getParent();
IJavaElement parentElement = null;
switch (parent.getNodeType()) {
case ASTNode.PACKAGE_DECLARATION:
IJavaElement cu = ((CompilationUnit) parent.getParent()).getJavaElement();
if (cu instanceof ICompilationUnit) {
String pkgName = ((PackageDeclaration) parent).getName().getFullyQualifiedName();
parentElement = ((ICompilationUnit) cu).getPackageDeclaration(pkgName);
}
break;
case ASTNode.ENUM_DECLARATION:
case ASTNode.TYPE_DECLARATION:
case ASTNode.ANNOTATION_TYPE_DECLARATION:
parentElement = ((AbstractTypeDeclaration) parent).resolveBinding().getJavaElement();
break;
case ASTNode.FIELD_DECLARATION:
VariableDeclarationFragment fragment = (VariableDeclarationFragment) ((FieldDeclaration) parent).fragments().get(0);
IVariableBinding variableBinding = fragment.resolveBinding();
if (variableBinding == null) {
return null;
}
parentElement = variableBinding.getJavaElement();
break;
case ASTNode.METHOD_DECLARATION:
IMethodBinding methodBinding = ((MethodDeclaration) parent).resolveBinding();
if (methodBinding == null) return null;
parentElement = methodBinding.getJavaElement();
break;
case ASTNode.VARIABLE_DECLARATION_STATEMENT:
fragment = (VariableDeclarationFragment) ((VariableDeclarationStatement) parent).fragments().get(0);
variableBinding = fragment.resolveBinding();
if (variableBinding == null) {
return null;
}
parentElement = variableBinding.getJavaElement();
break;
default:
return null;
}
if (! (parentElement instanceof IAnnotatable)) return null;
if ((parentElement instanceof IMember) && ((IMember) parentElement).isBinary()) {
return ((IAnnotatable) parentElement).getAnnotation(getAnnotationType().getQualifiedName());
}
return ((IAnnotatable) parentElement).getAnnotation(getName());
}
public String getKey() {
if (this.key == null) {
String recipientKey = getRecipientKey();
this.key = new String(this.binding.computeUniqueKey(recipientKey.toCharArray()));
}
return this.key;
}
private String getRecipientKey() {
if (!(this.bindingResolver instanceof DefaultBindingResolver)) return ""; //$NON-NLS-1$
DefaultBindingResolver resolver = (DefaultBindingResolver) this.bindingResolver;
ASTNode node = (ASTNode) resolver.bindingsToAstNodes.get(this);
if (node == null) {
// Can happen if annotation bindings have been resolved before having parsed the declaration
return ""; //$NON-NLS-1$
}
ASTNode recipient = node.getParent();
switch (recipient.getNodeType()) {
case ASTNode.PACKAGE_DECLARATION:
String pkgName = ((PackageDeclaration) recipient).getName().getFullyQualifiedName();
return pkgName.replace('.', '/');
case ASTNode.TYPE_DECLARATION:
return ((TypeDeclaration) recipient).resolveBinding().getKey();
case ASTNode.FIELD_DECLARATION:
VariableDeclarationFragment fragment = (VariableDeclarationFragment) ((FieldDeclaration) recipient).fragments().get(0);
return fragment.resolveBinding().getKey();
case ASTNode.METHOD_DECLARATION:
return ((MethodDeclaration) recipient).resolveBinding().getKey();
case ASTNode.VARIABLE_DECLARATION_STATEMENT:
fragment = (VariableDeclarationFragment) ((VariableDeclarationStatement) recipient).fragments().get(0);
return fragment.resolveBinding().getKey();
default:
return ""; //$NON-NLS-1$
}
}
public int getKind() {
return IBinding.ANNOTATION;
}
public int getModifiers() {
return Modifier.NONE;
}
public String getName() {
ITypeBinding annotationType = getAnnotationType();
if (annotationType == null) {
return new String(this.binding.getAnnotationType().sourceName());
} else {
return annotationType.getName();
}
}
public boolean isDeprecated() {
ReferenceBinding typeBinding = this.binding.getAnnotationType();
if (typeBinding == null) return false;
return typeBinding.isDeprecated();
}
public boolean isEqualTo(IBinding otherBinding) {
if (this == otherBinding)
return true;
if (otherBinding.getKind() != IBinding.ANNOTATION)
return false;
IAnnotationBinding other = (IAnnotationBinding) otherBinding;
if (!getAnnotationType().isEqualTo(other.getAnnotationType()))
return false;
IMemberValuePairBinding[] memberValuePairs = getDeclaredMemberValuePairs();
IMemberValuePairBinding[] otherMemberValuePairs = other.getDeclaredMemberValuePairs();
if (memberValuePairs.length != otherMemberValuePairs.length)
return false;
for (int i = 0, length = memberValuePairs.length; i < length; i++) {
if (!memberValuePairs[i].isEqualTo(otherMemberValuePairs[i]))
return false;
}
return true;
}
/*
* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.IBinding#isRecovered()
*/
public boolean isRecovered() {
ReferenceBinding annotationType = this.binding.getAnnotationType();
return annotationType == null || (annotationType.tagBits & TagBits.HasMissingType) != 0; }
public boolean isSynthetic() {
return false;
}
public String toString() {
ITypeBinding type = getAnnotationType();
final StringBuffer buffer = new StringBuffer();
buffer.append('@');
if (type != null)
buffer.append(type.getName());
buffer.append('(');
IMemberValuePairBinding[] pairs = getDeclaredMemberValuePairs();
for (int i = 0, len = pairs.length; i < len; i++) {
if (i != 0)
buffer.append(", "); //$NON-NLS-1$
buffer.append(pairs[i].toString());
}
buffer.append(')');
return buffer.toString();
}
}