/*******************************************************************************
* Copyright (c) 2000, 2011 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.JavaCore;
import org.eclipse.jdt.core.compiler.CharOperation;
import org.eclipse.jdt.internal.compiler.ast.StringLiteral;
import org.eclipse.jdt.internal.compiler.ast.Wildcard;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.lookup.ArrayBinding;
import org.eclipse.jdt.internal.compiler.lookup.BaseTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.Binding;
import org.eclipse.jdt.internal.compiler.lookup.CaptureBinding;
import org.eclipse.jdt.internal.compiler.lookup.FieldBinding;
import org.eclipse.jdt.internal.compiler.lookup.LocalTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
import org.eclipse.jdt.internal.compiler.lookup.PackageBinding;
import org.eclipse.jdt.internal.compiler.lookup.ParameterizedTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.RawTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import org.eclipse.jdt.internal.compiler.lookup.Scope;
import org.eclipse.jdt.internal.compiler.lookup.TagBits;
import org.eclipse.jdt.internal.compiler.lookup.TypeConstants;
import org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding;
import org.eclipse.jdt.internal.compiler.lookup.WildcardBinding;
import org.eclipse.jdt.internal.compiler.problem.AbortCompilation;
import org.eclipse.jdt.internal.compiler.util.SuffixConstants;
import org.eclipse.jdt.internal.core.JavaElement;
import org.eclipse.jdt.internal.core.PackageFragment;
/**
* Internal implementation of type bindings.
*/
class TypeBinding implements ITypeBinding {
private static final StringLiteral EXPRESSION = new org.eclipse.jdt.internal.compiler.ast.StringLiteral(0,0);
protected static final IMethodBinding[] NO_METHOD_BINDINGS = new IMethodBinding[0];
private static final String NO_NAME = ""; //$NON-NLS-1$
protected static final ITypeBinding[] NO_TYPE_BINDINGS = new ITypeBinding[0];
protected static final IVariableBinding[] NO_VARIABLE_BINDINGS = new IVariableBinding[0];
private static final int VALID_MODIFIERS = Modifier.PUBLIC | Modifier.PROTECTED | Modifier.PRIVATE |
Modifier.ABSTRACT | Modifier.STATIC | Modifier.FINAL | Modifier.STRICTFP;
org.eclipse.jdt.internal.compiler.lookup.TypeBinding binding;
private String key;
private BindingResolver resolver;
private IVariableBinding[] fields;
private IAnnotationBinding[] annotations;
private IMethodBinding[] methods;
private ITypeBinding[] members;
private ITypeBinding[] interfaces;
private ITypeBinding[] typeArguments;
private ITypeBinding[] bounds;
private ITypeBinding[] typeParameters;
public TypeBinding(BindingResolver resolver, org.eclipse.jdt.internal.compiler.lookup.TypeBinding binding) {
this.binding = binding;
this.resolver = resolver;
}
public ITypeBinding createArrayType(int dimension) {
int realDimensions = dimension;
realDimensions += getDimensions();
if (realDimensions < 1 || realDimensions > 255) {
throw new IllegalArgumentException();
}
return this.resolver.resolveArrayType(this, dimension);
}
public IAnnotationBinding[] getAnnotations() {
if (this.annotations != null) {
return this.annotations;
}
org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding refType = null;
if (this.binding instanceof ParameterizedTypeBinding) {
refType = ((ParameterizedTypeBinding) this.binding).genericType();
} else if (this.binding.isAnnotationType() || this.binding.isClass() || this.binding.isEnum() || this.binding.isInterface()) {
refType = (org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding) this.binding;
}
if (refType != null) {
org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding[] internalAnnotations = refType.getAnnotations();
int length = internalAnnotations == null ? 0 : internalAnnotations.length;
if (length != 0) {
IAnnotationBinding[] tempAnnotations = new IAnnotationBinding[length];
int convertedAnnotationCount = 0;
for (int i = 0; i < length; i++) {
org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding internalAnnotation = internalAnnotations[i];
IAnnotationBinding annotationInstance = this.resolver.getAnnotationInstance(internalAnnotation);
if (annotationInstance == null) {
continue;
}
tempAnnotations[convertedAnnotationCount++] = annotationInstance;
}
if (convertedAnnotationCount != length) {
if (convertedAnnotationCount == 0) {
return this.annotations = AnnotationBinding.NoAnnotations;
}
System.arraycopy(tempAnnotations, 0, (tempAnnotations = new IAnnotationBinding[convertedAnnotationCount]), 0, convertedAnnotationCount);
}
return this.annotations = tempAnnotations;
}
}
return this.annotations = AnnotationBinding.NoAnnotations;
}
/*
* @see ITypeBinding#getBinaryName()
* @since 3.0
*/
public String getBinaryName() {
if (this.binding.isCapture()) {
return null; // no binary name for capture binding
} else if (this.binding.isTypeVariable()) {
TypeVariableBinding typeVariableBinding = (TypeVariableBinding) this.binding;
org.eclipse.jdt.internal.compiler.lookup.Binding declaring = typeVariableBinding.declaringElement;
StringBuffer binaryName = new StringBuffer();
switch(declaring.kind()) {
case org.eclipse.jdt.internal.compiler.lookup.Binding.METHOD :
MethodBinding methodBinding = (MethodBinding) declaring;
char[] constantPoolName = methodBinding.declaringClass.constantPoolName();
if (constantPoolName == null) return null;
binaryName
.append(CharOperation.replaceOnCopy(constantPoolName, '/', '.'))
.append('$')
.append(methodBinding.signature())
.append('$')
.append(typeVariableBinding.sourceName);
break;
default :
org.eclipse.jdt.internal.compiler.lookup.TypeBinding typeBinding = (org.eclipse.jdt.internal.compiler.lookup.TypeBinding) declaring;
constantPoolName = typeBinding.constantPoolName();
if (constantPoolName == null) return null;
binaryName
.append(CharOperation.replaceOnCopy(constantPoolName, '/', '.'))
.append('$')
.append(typeVariableBinding.sourceName);
}
return String.valueOf(binaryName);
}
char[] constantPoolName = this.binding.constantPoolName();
if (constantPoolName == null) return null;
char[] dotSeparated = CharOperation.replaceOnCopy(constantPoolName, '/', '.');
return new String(dotSeparated);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#getBound()
*/
public ITypeBinding getBound() {
switch (this.binding.kind()) {
case Binding.WILDCARD_TYPE :
case Binding.INTERSECTION_TYPE :
WildcardBinding wildcardBinding = (WildcardBinding) this.binding;
if (wildcardBinding.bound != null) {
return this.resolver.getTypeBinding(wildcardBinding.bound);
}
break;
}
return null;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#getGenericTypeOfWildcardType()
*/
public ITypeBinding getGenericTypeOfWildcardType() {
switch (this.binding.kind()) {
case Binding.WILDCARD_TYPE :
WildcardBinding wildcardBinding = (WildcardBinding) this.binding;
if (wildcardBinding.genericType != null) {
return this.resolver.getTypeBinding(wildcardBinding.genericType);
}
break;
}
return null;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#getRank()
*/
public int getRank() {
switch (this.binding.kind()) {
case Binding.WILDCARD_TYPE :
case Binding.INTERSECTION_TYPE :
WildcardBinding wildcardBinding = (WildcardBinding) this.binding;
return wildcardBinding.rank;
default:
return -1;
}
}
/*
* @see ITypeBinding#getComponentType()
*/
public ITypeBinding getComponentType() {
if (!isArray()) {
return null;
}
ArrayBinding arrayBinding = (ArrayBinding) this.binding;
return this.resolver.getTypeBinding(arrayBinding.elementsType());
}
/*
* @see ITypeBinding#getDeclaredFields()
*/
public synchronized IVariableBinding[] getDeclaredFields() {
if (this.fields != null) {
return this.fields;
}
try {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
FieldBinding[] fieldBindings = referenceBinding.availableFields(); // resilience
int length = fieldBindings.length;
if (length != 0) {
int convertedFieldCount = 0;
IVariableBinding[] newFields = new IVariableBinding[length];
for (int i = 0; i < length; i++) {
FieldBinding fieldBinding = fieldBindings[i];
IVariableBinding variableBinding = this.resolver.getVariableBinding(fieldBinding);
if (variableBinding != null) {
newFields[convertedFieldCount++] = variableBinding;
}
}
if (convertedFieldCount != length) {
if (convertedFieldCount == 0) {
return this.fields = NO_VARIABLE_BINDINGS;
}
System.arraycopy(newFields, 0, (newFields = new IVariableBinding[convertedFieldCount]), 0, convertedFieldCount);
}
return this.fields = newFields;
}
}
} catch (RuntimeException e) {
/* in case a method cannot be resolvable due to missing jars on the classpath
* see https://bugs.eclipse.org/bugs/show_bug.cgi?id=57871
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=63550
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=64299
*/
org.eclipse.jdt.internal.core.util.Util.log(e, "Could not retrieve declared fields"); //$NON-NLS-1$
}
return this.fields = NO_VARIABLE_BINDINGS;
}
/*
* @see ITypeBinding#getDeclaredMethods()
*/
public synchronized IMethodBinding[] getDeclaredMethods() {
if (this.methods != null) {
return this.methods;
}
try {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
org.eclipse.jdt.internal.compiler.lookup.MethodBinding[] internalMethods = referenceBinding.availableMethods(); // be resilient
int length = internalMethods.length;
if (length != 0) {
int convertedMethodCount = 0;
IMethodBinding[] newMethods = new IMethodBinding[length];
for (int i = 0; i < length; i++) {
org.eclipse.jdt.internal.compiler.lookup.MethodBinding methodBinding = internalMethods[i];
if (methodBinding.isDefaultAbstract() || methodBinding.isSynthetic() || (methodBinding.isConstructor() && isInterface())) {
continue;
}
IMethodBinding methodBinding2 = this.resolver.getMethodBinding(methodBinding);
if (methodBinding2 != null) {
newMethods[convertedMethodCount++] = methodBinding2;
}
}
if (convertedMethodCount != length) {
if (convertedMethodCount == 0) {
return this.methods = NO_METHOD_BINDINGS;
}
System.arraycopy(newMethods, 0, (newMethods = new IMethodBinding[convertedMethodCount]), 0, convertedMethodCount);
}
return this.methods = newMethods;
}
}
} catch (RuntimeException e) {
/* in case a method cannot be resolvable due to missing jars on the classpath
* see https://bugs.eclipse.org/bugs/show_bug.cgi?id=57871
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=63550
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=64299
*/
org.eclipse.jdt.internal.core.util.Util.log(e, "Could not retrieve declared methods"); //$NON-NLS-1$
}
return this.methods = NO_METHOD_BINDINGS;
}
/*
* @see ITypeBinding#getDeclaredModifiers()
*/
public int getDeclaredModifiers() {
return getModifiers();
}
/*
* @see ITypeBinding#getDeclaredTypes()
*/
public synchronized ITypeBinding[] getDeclaredTypes() {
if (this.members != null) {
return this.members;
}
try {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
ReferenceBinding[] internalMembers = referenceBinding.memberTypes();
int length = internalMembers.length;
if (length != 0) {
ITypeBinding[] newMembers = new ITypeBinding[length];
for (int i = 0; i < length; i++) {
ITypeBinding typeBinding = this.resolver.getTypeBinding(internalMembers[i]);
if (typeBinding == null) {
return this.members = NO_TYPE_BINDINGS;
}
newMembers[i] = typeBinding;
}
return this.members = newMembers;
}
}
} catch (RuntimeException e) {
/* in case a method cannot be resolvable due to missing jars on the classpath
* see https://bugs.eclipse.org/bugs/show_bug.cgi?id=57871
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=63550
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=64299
*/
org.eclipse.jdt.internal.core.util.Util.log(e, "Could not retrieve declared methods"); //$NON-NLS-1$
}
return this.members = NO_TYPE_BINDINGS;
}
/*
* @see ITypeBinding#getDeclaringMethod()
*/
public synchronized IMethodBinding getDeclaringMethod() {
if (this.binding instanceof LocalTypeBinding) {
LocalTypeBinding localTypeBinding = (LocalTypeBinding) this.binding;
MethodBinding methodBinding = localTypeBinding.enclosingMethod;
if (methodBinding != null) {
try {
return this.resolver.getMethodBinding(localTypeBinding.enclosingMethod);
} catch (RuntimeException e) {
/* in case a method cannot be resolvable due to missing jars on the classpath
* see https://bugs.eclipse.org/bugs/show_bug.cgi?id=57871
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=63550
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=64299
*/
org.eclipse.jdt.internal.core.util.Util.log(e, "Could not retrieve declaring method"); //$NON-NLS-1$
}
}
} else if (this.binding.isTypeVariable()) {
TypeVariableBinding typeVariableBinding = (TypeVariableBinding) this.binding;
Binding declaringElement = typeVariableBinding.declaringElement;
if (declaringElement instanceof MethodBinding) {
try {
return this.resolver.getMethodBinding((MethodBinding)declaringElement);
} catch (RuntimeException e) {
/* in case a method cannot be resolvable due to missing jars on the classpath
* see https://bugs.eclipse.org/bugs/show_bug.cgi?id=57871
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=63550
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=64299
*/
org.eclipse.jdt.internal.core.util.Util.log(e, "Could not retrieve declaring method"); //$NON-NLS-1$
}
}
}
return null;
}
/*
* @see ITypeBinding#getDeclaringClass()
*/
public synchronized ITypeBinding getDeclaringClass() {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
if (referenceBinding.isNestedType()) {
try {
return this.resolver.getTypeBinding(referenceBinding.enclosingType());
} catch (RuntimeException e) {
/* in case a method cannot be resolvable due to missing jars on the classpath
* see https://bugs.eclipse.org/bugs/show_bug.cgi?id=57871
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=63550
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=64299
*/
org.eclipse.jdt.internal.core.util.Util.log(e, "Could not retrieve declaring class"); //$NON-NLS-1$
}
}
} else if (this.binding.isTypeVariable()) {
TypeVariableBinding typeVariableBinding = (TypeVariableBinding) this.binding;
Binding declaringElement = typeVariableBinding.isCapture() ? ((CaptureBinding) typeVariableBinding).sourceType : typeVariableBinding.declaringElement;
if (declaringElement instanceof ReferenceBinding) {
try {
return this.resolver.getTypeBinding((ReferenceBinding)declaringElement);
} catch (RuntimeException e) {
/* in case a method cannot be resolvable due to missing jars on the classpath
* see https://bugs.eclipse.org/bugs/show_bug.cgi?id=57871
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=63550
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=64299
*/
org.eclipse.jdt.internal.core.util.Util.log(e, "Could not retrieve declaring class"); //$NON-NLS-1$
}
}
}
return null;
}
/*
* @see ITypeBinding#getDimensions()
*/
public int getDimensions() {
if (!isArray()) {
return 0;
}
ArrayBinding arrayBinding = (ArrayBinding) this.binding;
return arrayBinding.dimensions;
}
/*
* @see ITypeBinding#getElementType()
*/
public ITypeBinding getElementType() {
if (!isArray()) {
return null;
}
ArrayBinding arrayBinding = (ArrayBinding) this.binding;
return this.resolver.getTypeBinding(arrayBinding.leafComponentType);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#getTypeDeclaration()
*/
public ITypeBinding getTypeDeclaration() {
if (this.binding instanceof ParameterizedTypeBinding)
return this.resolver.getTypeBinding(((ParameterizedTypeBinding)this.binding).genericType());
return this;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#getErasure()
*/
public ITypeBinding getErasure() {
return this.resolver.getTypeBinding(this.binding.erasure());
}
public synchronized ITypeBinding[] getInterfaces() {
if (this.interfaces != null) {
return this.interfaces;
}
if (this.binding == null)
return this.interfaces = NO_TYPE_BINDINGS;
switch (this.binding.kind()) {
case Binding.ARRAY_TYPE :
case Binding.BASE_TYPE :
return this.interfaces = NO_TYPE_BINDINGS;
}
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
ReferenceBinding[] internalInterfaces = null;
try {
internalInterfaces = referenceBinding.superInterfaces();
} catch (RuntimeException e) {
/* in case a method cannot be resolvable due to missing jars on the classpath
* see https://bugs.eclipse.org/bugs/show_bug.cgi?id=57871
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=63550
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=64299
*/
org.eclipse.jdt.internal.core.util.Util.log(e, "Could not retrieve interfaces"); //$NON-NLS-1$
}
int length = internalInterfaces == null ? 0 : internalInterfaces.length;
if (length != 0) {
ITypeBinding[] newInterfaces = new ITypeBinding[length];
int interfacesCounter = 0;
for (int i = 0; i < length; i++) {
ITypeBinding typeBinding = this.resolver.getTypeBinding(internalInterfaces[i]);
if (typeBinding == null) {
continue;
}
newInterfaces[interfacesCounter++] = typeBinding;
}
if (length != interfacesCounter) {
System.arraycopy(newInterfaces, 0, (newInterfaces = new ITypeBinding[interfacesCounter]), 0, interfacesCounter);
}
return this.interfaces = newInterfaces;
}
return this.interfaces = NO_TYPE_BINDINGS;
}
public IJavaElement getJavaElement() {
JavaElement element = getUnresolvedJavaElement();
if (element != null)
return element.resolved(this.binding);
if (isRecovered()) {
IPackageBinding packageBinding = getPackage();
if (packageBinding != null) {
final IJavaElement javaElement = packageBinding.getJavaElement();
if (javaElement != null && javaElement.getElementType() == IJavaElement.PACKAGE_FRAGMENT) {
// best effort: we don't know if the recovered binding is a binary or source binding, so go with a simple source type
return ((PackageFragment) javaElement).getCompilationUnit(new String(this.binding.sourceName()) + SuffixConstants.SUFFIX_STRING_java).getType(this.getName());
}
}
return null;
}
return null;
}
private JavaElement getUnresolvedJavaElement() {
return getUnresolvedJavaElement(this.binding);
}
private JavaElement getUnresolvedJavaElement(org.eclipse.jdt.internal.compiler.lookup.TypeBinding typeBinding ) {
if (JavaCore.getPlugin() == null) {
return null;
}
if (this.resolver instanceof DefaultBindingResolver) {
DefaultBindingResolver defaultBindingResolver = (DefaultBindingResolver) this.resolver;
if (!defaultBindingResolver.fromJavaProject) return null;
return org.eclipse.jdt.internal.core.util.Util.getUnresolvedJavaElement(
typeBinding,
defaultBindingResolver.workingCopyOwner,
defaultBindingResolver.getBindingsToNodesMap());
}
return null;
}
/*
* @see IBinding#getKey()
*/
public String getKey() {
if (this.key == null) {
this.key = new String(this.binding.computeUniqueKey());
}
return this.key;
}
/*
* @see IBinding#getKind()
*/
public int getKind() {
return IBinding.TYPE;
}
/*
* @see IBinding#getModifiers()
*/
public int getModifiers() {
if (isClass()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
final int accessFlags = referenceBinding.getAccessFlags() & VALID_MODIFIERS;
if (referenceBinding.isAnonymousType()) {
return accessFlags & ~Modifier.FINAL;
}
return accessFlags;
} else if (isAnnotation()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
final int accessFlags = referenceBinding.getAccessFlags() & VALID_MODIFIERS;
// clear the AccAbstract, AccAnnotation and the AccInterface bits
return accessFlags & ~(ClassFileConstants.AccAbstract | ClassFileConstants.AccInterface | ClassFileConstants.AccAnnotation);
} else if (isInterface()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
final int accessFlags = referenceBinding.getAccessFlags() & VALID_MODIFIERS;
// clear the AccAbstract and the AccInterface bits
return accessFlags & ~(ClassFileConstants.AccAbstract | ClassFileConstants.AccInterface);
} else if (isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
final int accessFlags = referenceBinding.getAccessFlags() & VALID_MODIFIERS;
// clear the AccEnum bits
return accessFlags & ~ClassFileConstants.AccEnum;
} else {
return Modifier.NONE;
}
}
public String getName() {
StringBuffer buffer;
switch (this.binding.kind()) {
case Binding.WILDCARD_TYPE :
case Binding.INTERSECTION_TYPE:
WildcardBinding wildcardBinding = (WildcardBinding) this.binding;
buffer = new StringBuffer();
buffer.append(TypeConstants.WILDCARD_NAME);
if (wildcardBinding.bound != null) {
switch(wildcardBinding.boundKind) {
case Wildcard.SUPER :
buffer.append(TypeConstants.WILDCARD_SUPER);
break;
case Wildcard.EXTENDS :
buffer.append(TypeConstants.WILDCARD_EXTENDS);
}
buffer.append(getBound().getName());
}
return String.valueOf(buffer);
case Binding.TYPE_PARAMETER :
if (isCapture()) {
return NO_NAME;
}
TypeVariableBinding typeVariableBinding = (TypeVariableBinding) this.binding;
return new String(typeVariableBinding.sourceName);
case Binding.PARAMETERIZED_TYPE :
ParameterizedTypeBinding parameterizedTypeBinding = (ParameterizedTypeBinding) this.binding;
buffer = new StringBuffer();
buffer.append(parameterizedTypeBinding.sourceName());
ITypeBinding[] tArguments = getTypeArguments();
final int typeArgumentsLength = tArguments.length;
if (typeArgumentsLength != 0) {
buffer.append('<');
for (int i = 0; i < typeArgumentsLength; i++) {
if (i > 0) {
buffer.append(',');
}
buffer.append(tArguments[i].getName());
}
buffer.append('>');
}
return String.valueOf(buffer);
case Binding.RAW_TYPE :
return getTypeDeclaration().getName();
case Binding.ARRAY_TYPE :
ITypeBinding elementType = getElementType();
if (elementType.isLocal() || elementType.isAnonymous() || elementType.isCapture()) {
return NO_NAME;
}
int dimensions = getDimensions();
char[] brackets = new char[dimensions * 2];
for (int i = dimensions * 2 - 1; i >= 0; i -= 2) {
brackets[i] = ']';
brackets[i - 1] = '[';
}
buffer = new StringBuffer(elementType.getName());
buffer.append(brackets);
return String.valueOf(buffer);
default :
if (isPrimitive() || isNullType()) {
BaseTypeBinding baseTypeBinding = (BaseTypeBinding) this.binding;
return new String(baseTypeBinding.simpleName);
}
if (isAnonymous()) {
return NO_NAME;
}
return new String(this.binding.sourceName());
}
}
/*
* @see ITypeBinding#getPackage()
*/
public IPackageBinding getPackage() {
switch (this.binding.kind()) {
case Binding.BASE_TYPE :
case Binding.ARRAY_TYPE :
case Binding.TYPE_PARAMETER : // includes capture scenario
case Binding.WILDCARD_TYPE :
case Binding.INTERSECTION_TYPE:
return null;
}
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
return this.resolver.getPackageBinding(referenceBinding.getPackage());
}
/**
* @see org.eclipse.jdt.core.dom.ITypeBinding#getQualifiedName()
*/
public String getQualifiedName() {
StringBuffer buffer;
switch (this.binding.kind()) {
case Binding.WILDCARD_TYPE :
case Binding.INTERSECTION_TYPE:
WildcardBinding wildcardBinding = (WildcardBinding) this.binding;
buffer = new StringBuffer();
buffer.append(TypeConstants.WILDCARD_NAME);
final ITypeBinding bound = getBound();
if (bound != null) {
switch(wildcardBinding.boundKind) {
case Wildcard.SUPER :
buffer.append(TypeConstants.WILDCARD_SUPER);
break;
case Wildcard.EXTENDS :
buffer.append(TypeConstants.WILDCARD_EXTENDS);
}
buffer.append(bound.getQualifiedName());
}
return String.valueOf(buffer);
case Binding.RAW_TYPE :
return getTypeDeclaration().getQualifiedName();
case Binding.ARRAY_TYPE :
ITypeBinding elementType = getElementType();
if (elementType.isLocal() || elementType.isAnonymous() || elementType.isCapture()) {
return elementType.getQualifiedName();
}
final int dimensions = getDimensions();
char[] brackets = new char[dimensions * 2];
for (int i = dimensions * 2 - 1; i >= 0; i -= 2) {
brackets[i] = ']';
brackets[i - 1] = '[';
}
buffer = new StringBuffer(elementType.getQualifiedName());
buffer.append(brackets);
return String.valueOf(buffer);
case Binding.TYPE_PARAMETER :
if (isCapture()) {
return NO_NAME;
}
TypeVariableBinding typeVariableBinding = (TypeVariableBinding) this.binding;
return new String(typeVariableBinding.sourceName);
case Binding.PARAMETERIZED_TYPE :
if (this.binding.isLocalType()) {
return NO_NAME;
}
buffer = new StringBuffer();
if (isMember()) {
buffer
.append(getDeclaringClass().getQualifiedName())
.append('.');
ParameterizedTypeBinding parameterizedTypeBinding = (ParameterizedTypeBinding) this.binding;
buffer.append(parameterizedTypeBinding.sourceName());
ITypeBinding[] tArguments = getTypeArguments();
final int typeArgumentsLength = tArguments.length;
if (typeArgumentsLength != 0) {
buffer.append('<');
for (int i = 0; i < typeArgumentsLength; i++) {
if (i > 0) {
buffer.append(',');
}
buffer.append(tArguments[i].getQualifiedName());
}
buffer.append('>');
}
return String.valueOf(buffer);
}
buffer.append(getTypeDeclaration().getQualifiedName());
ITypeBinding[] tArguments = getTypeArguments();
final int typeArgumentsLength = tArguments.length;
if (typeArgumentsLength != 0) {
buffer.append('<');
for (int i = 0; i < typeArgumentsLength; i++) {
if (i > 0) {
buffer.append(',');
}
buffer.append(tArguments[i].getQualifiedName());
}
buffer.append('>');
}
return String.valueOf(buffer);
default :
if (isAnonymous() || this.binding.isLocalType()) {
return NO_NAME;
}
if (isPrimitive() || isNullType()) {
BaseTypeBinding baseTypeBinding = (BaseTypeBinding) this.binding;
return new String(baseTypeBinding.simpleName);
}
if (isMember()) {
buffer = new StringBuffer();
buffer
.append(getDeclaringClass().getQualifiedName())
.append('.');
buffer.append(getName());
return String.valueOf(buffer);
}
PackageBinding packageBinding = this.binding.getPackage();
buffer = new StringBuffer();
if (packageBinding != null && packageBinding.compoundName != CharOperation.NO_CHAR_CHAR) {
buffer.append(CharOperation.concatWith(packageBinding.compoundName, '.')).append('.');
}
buffer.append(getName());
return String.valueOf(buffer);
}
}
/*
* @see ITypeBinding#getSuperclass()
*/
public synchronized ITypeBinding getSuperclass() {
if (this.binding == null)
return null;
switch (this.binding.kind()) {
case Binding.ARRAY_TYPE :
case Binding.BASE_TYPE :
return null;
default:
// no superclass for interface types (interface | annotation type)
if (this.binding.isInterface())
return null;
}
ReferenceBinding superclass = null;
try {
superclass = ((ReferenceBinding)this.binding).superclass();
} catch (RuntimeException e) {
/* in case a method cannot be resolvable due to missing jars on the classpath
* see https://bugs.eclipse.org/bugs/show_bug.cgi?id=57871
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=63550
* https://bugs.eclipse.org/bugs/show_bug.cgi?id=64299
*/
org.eclipse.jdt.internal.core.util.Util.log(e, "Could not retrieve superclass"); //$NON-NLS-1$
return this.resolver.resolveWellKnownType("java.lang.Object"); //$NON-NLS-1$
}
if (superclass == null) {
return null;
}
return this.resolver.getTypeBinding(superclass);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#getTypeArguments()
*/
public ITypeBinding[] getTypeArguments() {
if (this.typeArguments != null) {
return this.typeArguments;
}
if (this.binding.isParameterizedTypeWithActualArguments()) {
ParameterizedTypeBinding parameterizedTypeBinding = (ParameterizedTypeBinding) this.binding;
final org.eclipse.jdt.internal.compiler.lookup.TypeBinding[] arguments = parameterizedTypeBinding.arguments;
int argumentsLength = arguments.length;
ITypeBinding[] newTypeArguments = new ITypeBinding[argumentsLength];
for (int i = 0; i < argumentsLength; i++) {
ITypeBinding typeBinding = this.resolver.getTypeBinding(arguments[i]);
if (typeBinding == null) {
return this.typeArguments = NO_TYPE_BINDINGS;
}
newTypeArguments[i] = typeBinding;
}
return this.typeArguments = newTypeArguments;
}
return this.typeArguments = NO_TYPE_BINDINGS;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#getTypeBounds()
*/
public ITypeBinding[] getTypeBounds() {
if (this.bounds != null) {
return this.bounds;
}
if (this.binding instanceof TypeVariableBinding) {
TypeVariableBinding typeVariableBinding = (TypeVariableBinding) this.binding;
ReferenceBinding varSuperclass = typeVariableBinding.superclass();
org.eclipse.jdt.internal.compiler.lookup.TypeBinding firstClassOrArrayBound = typeVariableBinding.firstBound;
int boundsLength = 0;
if (firstClassOrArrayBound != null) {
if (firstClassOrArrayBound == varSuperclass) {
boundsLength++;
} else if (firstClassOrArrayBound.isArrayType()) { // capture of ? extends/super arrayType
boundsLength++;
} else {
firstClassOrArrayBound = null;
}
}
ReferenceBinding[] superinterfaces = typeVariableBinding.superInterfaces();
int superinterfacesLength = 0;
if (superinterfaces != null) {
superinterfacesLength = superinterfaces.length;
boundsLength += superinterfacesLength;
}
if (boundsLength != 0) {
ITypeBinding[] typeBounds = new ITypeBinding[boundsLength];
int boundsIndex = 0;
if (firstClassOrArrayBound != null) {
ITypeBinding typeBinding = this.resolver.getTypeBinding(firstClassOrArrayBound);
if (typeBinding == null) {
return this.bounds = NO_TYPE_BINDINGS;
}
typeBounds[boundsIndex++] = typeBinding;
}
if (superinterfaces != null) {
for (int i = 0; i < superinterfacesLength; i++, boundsIndex++) {
ITypeBinding typeBinding = this.resolver.getTypeBinding(superinterfaces[i]);
if (typeBinding == null) {
return this.bounds = NO_TYPE_BINDINGS;
}
typeBounds[boundsIndex] = typeBinding;
}
}
return this.bounds = typeBounds;
}
}
return this.bounds = NO_TYPE_BINDINGS;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#getTypeParameters()
*/
public ITypeBinding[] getTypeParameters() {
if (this.typeParameters != null) {
return this.typeParameters;
}
switch(this.binding.kind()) {
case Binding.RAW_TYPE :
case Binding.PARAMETERIZED_TYPE :
return this.typeParameters = NO_TYPE_BINDINGS;
}
TypeVariableBinding[] typeVariableBindings = this.binding.typeVariables();
int typeVariableBindingsLength = typeVariableBindings == null ? 0 : typeVariableBindings.length;
if (typeVariableBindingsLength != 0) {
ITypeBinding[] newTypeParameters = new ITypeBinding[typeVariableBindingsLength];
for (int i = 0; i < typeVariableBindingsLength; i++) {
ITypeBinding typeBinding = this.resolver.getTypeBinding(typeVariableBindings[i]);
if (typeBinding == null) {
return this.typeParameters = NO_TYPE_BINDINGS;
}
newTypeParameters[i] = typeBinding;
}
return this.typeParameters = newTypeParameters;
}
return this.typeParameters = NO_TYPE_BINDINGS;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#getWildcard()
* @since 3.1
*/
public ITypeBinding getWildcard() {
if (this.binding instanceof CaptureBinding) {
CaptureBinding captureBinding = (CaptureBinding) this.binding;
return this.resolver.getTypeBinding(captureBinding.wildcard);
}
return null;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#isGenericType()
* @since 3.1
*/
public boolean isGenericType() {
// equivalent to return getTypeParameters().length > 0;
if (isRawType()) {
return false;
}
TypeVariableBinding[] typeVariableBindings = this.binding.typeVariables();
return (typeVariableBindings != null && typeVariableBindings.length > 0);
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#isAnnotation()
*/
public boolean isAnnotation() {
return this.binding.isAnnotationType();
}
/*
* @see ITypeBinding#isAnonymous()
*/
public boolean isAnonymous() {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
return referenceBinding.isAnonymousType();
}
return false;
}
/*
* @see ITypeBinding#isArray()
*/
public boolean isArray() {
return this.binding.isArrayType();
}
/* (non-Javadoc)
* @see ITypeBinding#isAssignmentCompatible(ITypeBinding)
*/
public boolean isAssignmentCompatible(ITypeBinding type) {
try {
if (this == type) return true;
if (!(type instanceof TypeBinding)) return false;
TypeBinding other = (TypeBinding) type;
Scope scope = this.resolver.scope();
if (scope == null) return false;
return this.binding.isCompatibleWith(other.binding) || scope.isBoxingCompatibleWith(this.binding, other.binding);
} catch (AbortCompilation e) {
// don't surface internal exception to clients
// see https://bugs.eclipse.org/bugs/show_bug.cgi?id=143013
return false;
}
}
/* (non-Javadoc)
* @see ITypeBinding#isCapture()
*/
public boolean isCapture() {
return this.binding.isCapture();
}
/* (non-Javadoc)
* @see ITypeBinding#isCastCompatible(ITypeBinding)
*/
public boolean isCastCompatible(ITypeBinding type) {
try {
Scope scope = this.resolver.scope();
if (scope == null) return false;
if (!(type instanceof TypeBinding)) return false;
org.eclipse.jdt.internal.compiler.lookup.TypeBinding expressionType = ((TypeBinding) type).binding;
// simulate capture in case checked binding did not properly get extracted from a reference
expressionType = expressionType.capture(scope, 0);
return TypeBinding.EXPRESSION.checkCastTypesCompatibility(scope, this.binding, expressionType, null);
} catch (AbortCompilation e) {
// don't surface internal exception to clients
// see https://bugs.eclipse.org/bugs/show_bug.cgi?id=143013
return false;
}
}
/*
* @see ITypeBinding#isClass()
*/
public boolean isClass() {
switch (this.binding.kind()) {
case Binding.TYPE_PARAMETER :
case Binding.WILDCARD_TYPE :
case Binding.INTERSECTION_TYPE :
return false;
}
return this.binding.isClass();
}
/*
* @see IBinding#isDeprecated()
*/
public boolean isDeprecated() {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
return referenceBinding.isDeprecated();
}
return false;
}
/* (non-Javadoc)
* @see ITypeBinding#isEnum()
*/
public boolean isEnum() {
return this.binding.isEnum();
}
/*
* @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 TypeBinding)) {
return false;
}
org.eclipse.jdt.internal.compiler.lookup.TypeBinding otherBinding = ((TypeBinding) other).binding;
// check return type
return BindingComparator.isEqual(this.binding, otherBinding);
}
/*
* @see ITypeBinding#isFromSource()
*/
public boolean isFromSource() {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
if (referenceBinding.isRawType()) {
return !((RawTypeBinding) referenceBinding).genericType().isBinaryBinding();
} else if (referenceBinding.isParameterizedType()) {
ParameterizedTypeBinding parameterizedTypeBinding = (ParameterizedTypeBinding) referenceBinding;
org.eclipse.jdt.internal.compiler.lookup.TypeBinding erasure = parameterizedTypeBinding.erasure();
if (erasure instanceof ReferenceBinding) {
return !((ReferenceBinding) erasure).isBinaryBinding();
}
return false;
} else {
return !referenceBinding.isBinaryBinding();
}
} else if (isTypeVariable()) {
final TypeVariableBinding typeVariableBinding = (TypeVariableBinding) this.binding;
final Binding declaringElement = typeVariableBinding.declaringElement;
if (declaringElement instanceof MethodBinding) {
MethodBinding methodBinding = (MethodBinding) declaringElement;
return !methodBinding.declaringClass.isBinaryBinding();
} else {
final org.eclipse.jdt.internal.compiler.lookup.TypeBinding typeBinding = (org.eclipse.jdt.internal.compiler.lookup.TypeBinding) declaringElement;
if (typeBinding instanceof ReferenceBinding) {
return !((ReferenceBinding) typeBinding).isBinaryBinding();
} else if (typeBinding instanceof ArrayBinding) {
final ArrayBinding arrayBinding = (ArrayBinding) typeBinding;
final org.eclipse.jdt.internal.compiler.lookup.TypeBinding leafComponentType = arrayBinding.leafComponentType;
if (leafComponentType instanceof ReferenceBinding) {
return !((ReferenceBinding) leafComponentType).isBinaryBinding();
}
}
}
} else if (isCapture()) {
CaptureBinding captureBinding = (CaptureBinding) this.binding;
return !captureBinding.sourceType.isBinaryBinding();
}
return false;
}
/*
* @see ITypeBinding#isInterface()
*/
public boolean isInterface() {
switch (this.binding.kind()) {
case Binding.TYPE_PARAMETER :
case Binding.WILDCARD_TYPE :
case Binding.INTERSECTION_TYPE :
return false;
}
return this.binding.isInterface();
}
/*
* @see ITypeBinding#isLocal()
*/
public boolean isLocal() {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
return referenceBinding.isLocalType() && !referenceBinding.isMemberType();
}
return false;
}
/*
* @see ITypeBinding#isMember()
*/
public boolean isMember() {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
return referenceBinding.isMemberType();
}
return false;
}
/*
* @see ITypeBinding#isNested()
*/
public boolean isNested() {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
return referenceBinding.isNestedType();
}
return false;
}
/**
* @see ITypeBinding#isNullType()
*/
public boolean isNullType() {
return this.binding == org.eclipse.jdt.internal.compiler.lookup.TypeBinding.NULL;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#isParameterizedType()
*/
public boolean isParameterizedType() {
return this.binding.isParameterizedTypeWithActualArguments();
}
/*
* @see ITypeBinding#isPrimitive()
*/
public boolean isPrimitive() {
return !isNullType() && this.binding.isBaseType();
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#isRawType()
*/
public boolean isRawType() {
return this.binding.isRawType();
}
/* (non-Javadoc)
* @see IBinding#isRecovered()
*/
public boolean isRecovered() {
return (this.binding.tagBits & TagBits.HasMissingType) != 0;
}
/* (non-Javadoc)
* @see ITypeBinding#isSubTypeCompatible(ITypeBinding)
*/
public boolean isSubTypeCompatible(ITypeBinding type) {
try {
if (this == type) return true;
if (this.binding.isBaseType()) return false;
if (!(type instanceof TypeBinding)) return false;
TypeBinding other = (TypeBinding) type;
if (other.binding.isBaseType()) return false;
return this.binding.isCompatibleWith(other.binding);
} catch (AbortCompilation e) {
// don't surface internal exception to clients
// see https://bugs.eclipse.org/bugs/show_bug.cgi?id=143013
return false;
}
}
/**
* @see IBinding#isSynthetic()
*/
public boolean isSynthetic() {
return false;
}
/*
* @see ITypeBinding#isTopLevel()
*/
public boolean isTopLevel() {
if (isClass() || isInterface() || isEnum()) {
ReferenceBinding referenceBinding = (ReferenceBinding) this.binding;
return !referenceBinding.isNestedType();
}
return false;
}
/*
* @see ITypeBinding#isTypeVariable()
*/
public boolean isTypeVariable() {
return this.binding.isTypeVariable() && !this.binding.isCapture();
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#isUpperbound()
*/
public boolean isUpperbound() {
switch (this.binding.kind()) {
case Binding.WILDCARD_TYPE :
return ((WildcardBinding) this.binding).boundKind == Wildcard.EXTENDS;
case Binding.INTERSECTION_TYPE :
return true;
}
return false;
}
/* (non-Javadoc)
* @see org.eclipse.jdt.core.dom.ITypeBinding#isWildcardType()
*/
public boolean isWildcardType() {
return this.binding.isWildcard();
}
/*
* For debugging purpose only.
* @see java.lang.Object#toString()
*/
public String toString() {
return this.binding.toString();
}
}