org.eclipse.jdt.core.dom.MethodBinding Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2000, 2015 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
* Stephan Herrmann - Contribution for
* Bug 429813 - [1.8][dom ast] IMethodBinding#getJavaElement() should return IMethod for lambda
*******************************************************************************/
package org.eclipse.jdt.core.dom;
import org.eclipse.jdt.core.IJavaElement;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.lookup.ExtraCompilerModifiers;
import org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment;
import org.eclipse.jdt.internal.compiler.lookup.ParameterizedGenericMethodBinding;
import org.eclipse.jdt.internal.compiler.lookup.RawTypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.ReferenceBinding;
import org.eclipse.jdt.internal.compiler.lookup.TagBits;
import org.eclipse.jdt.internal.compiler.lookup.TypeBinding;
import org.eclipse.jdt.internal.compiler.lookup.TypeVariableBinding;
import org.eclipse.jdt.internal.compiler.problem.AbortCompilation;
import org.eclipse.jdt.internal.core.JavaElement;
import org.eclipse.jdt.internal.core.util.Util;
/**
* Internal implementation of method bindings.
*/
class MethodBinding implements IMethodBinding {
private static final int VALID_MODIFIERS = Modifier.PUBLIC | Modifier.PROTECTED | Modifier.PRIVATE |
Modifier.ABSTRACT | Modifier.STATIC | Modifier.FINAL | Modifier.SYNCHRONIZED | Modifier.NATIVE |
Modifier.STRICTFP | Modifier.DEFAULT;
private static final ITypeBinding[] NO_TYPE_BINDINGS = new ITypeBinding[0];
protected org.eclipse.jdt.internal.compiler.lookup.MethodBinding binding;
protected BindingResolver resolver;
private volatile ITypeBinding[] parameterTypes;
private volatile ITypeBinding[] exceptionTypes;
private volatile String name;
private volatile ITypeBinding declaringClass;
private volatile ITypeBinding returnType;
private volatile String key;
private volatile ITypeBinding[] typeParameters;
private volatile ITypeBinding[] typeArguments;
private volatile IAnnotationBinding[] annotations;
private volatile IAnnotationBinding[][] parameterAnnotations;
MethodBinding(BindingResolver resolver, org.eclipse.jdt.internal.compiler.lookup.MethodBinding binding) {
this.resolver = resolver;
this.binding = binding;
}
public boolean isAnnotationMember() {
return getDeclaringClass().isAnnotation();
}
/**
* @see IMethodBinding#isConstructor()
*/
public boolean isConstructor() {
return this.binding.isConstructor();
}
/**
* @see IMethodBinding#isDefaultConstructor()
* @since 3.0
*/
public boolean isDefaultConstructor() {
final ReferenceBinding declaringClassBinding = this.binding.declaringClass;
if (declaringClassBinding.isRawType()) {
RawTypeBinding rawTypeBinding = (RawTypeBinding) declaringClassBinding;
if (rawTypeBinding.genericType().isBinaryBinding()) {
return false;
}
return (this.binding.modifiers & ExtraCompilerModifiers.AccIsDefaultConstructor) != 0;
}
if (declaringClassBinding.isBinaryBinding()) {
return false;
}
return (this.binding.modifiers & ExtraCompilerModifiers.AccIsDefaultConstructor) != 0;
}
/**
* @see IBinding#getName()
*/
public String getName() {
if (this.name == null) {
if (this.binding.isConstructor()) {
this.name = getDeclaringClass().getName();
} else {
this.name = new String(this.binding.selector);
}
}
return this.name;
}
public IAnnotationBinding[] getAnnotations() {
if (this.annotations != null) {
return this.annotations;
}
org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding[] internalAnnotations = this.binding.getAnnotations();
return this.annotations = filterTypeAnnotations(internalAnnotations);
}
/**
* @see IMethodBinding#getDeclaringClass()
*/
public ITypeBinding getDeclaringClass() {
if (this.declaringClass == null) {
this.declaringClass = this.resolver.getTypeBinding(this.binding.declaringClass);
}
return this.declaringClass;
}
@Override
public IBinding getDeclaringMember() {
return null;
}
public IAnnotationBinding[] getParameterAnnotations(int index) {
if (getParameterTypes() == NO_TYPE_BINDINGS) {
return AnnotationBinding.NoAnnotations;
}
if (this.parameterAnnotations != null) {
return this.parameterAnnotations[index];
}
org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding[][] bindingAnnotations = this.binding.getParameterAnnotations();
if (bindingAnnotations == null) return AnnotationBinding.NoAnnotations;
int length = bindingAnnotations.length;
IAnnotationBinding[][] domAnnotations = new IAnnotationBinding[length][];
for (int i = 0; i < length; i++) {
org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding[] paramBindingAnnotations = bindingAnnotations[i];
int pLength = paramBindingAnnotations.length;
domAnnotations[i] = new AnnotationBinding[pLength];
for (int j=0; j 0;
if (this.typeParameters != null) {
return this.typeParameters.length > 0;
}
TypeVariableBinding[] typeVariableBindings = this.binding.typeVariables();
return (typeVariableBindings != null && typeVariableBindings.length > 0);
}
/**
* @see org.eclipse.jdt.core.dom.IMethodBinding#getTypeArguments()
*/
public ITypeBinding[] getTypeArguments() {
if (this.typeArguments != null) {
return this.typeArguments;
}
if (this.binding instanceof ParameterizedGenericMethodBinding) {
ParameterizedGenericMethodBinding genericMethodBinding = (ParameterizedGenericMethodBinding) this.binding;
org.eclipse.jdt.internal.compiler.lookup.TypeBinding[] typeArgumentsBindings = genericMethodBinding.typeArguments;
int typeArgumentsLength = typeArgumentsBindings == null ? 0 : typeArgumentsBindings.length;
if (typeArgumentsLength != 0) {
ITypeBinding[] tArguments = new ITypeBinding[typeArgumentsLength];
for (int i = 0; i < typeArgumentsLength; i++) {
ITypeBinding typeBinding = this.resolver.getTypeBinding(typeArgumentsBindings[i]);
if (typeBinding == null) {
return this.typeArguments = NO_TYPE_BINDINGS;
}
tArguments[i] = typeBinding;
}
return this.typeArguments = tArguments;
}
}
return this.typeArguments = NO_TYPE_BINDINGS;
}
/**
* @see org.eclipse.jdt.core.dom.IMethodBinding#isParameterizedMethod()
*/
public boolean isParameterizedMethod() {
return (this.binding instanceof ParameterizedGenericMethodBinding)
&& !((ParameterizedGenericMethodBinding) this.binding).isRaw;
}
/**
* @see org.eclipse.jdt.core.dom.IMethodBinding#isRawMethod()
*/
public boolean isRawMethod() {
return (this.binding instanceof ParameterizedGenericMethodBinding)
&& ((ParameterizedGenericMethodBinding) this.binding).isRaw;
}
public boolean isSubsignature(IMethodBinding otherMethod) {
try {
LookupEnvironment lookupEnvironment = this.resolver.lookupEnvironment();
return lookupEnvironment != null
&& lookupEnvironment.methodVerifier().isMethodSubsignature(this.binding, ((MethodBinding) otherMethod).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 org.eclipse.jdt.core.dom.IMethodBinding#getMethodDeclaration()
*/
public IMethodBinding getMethodDeclaration() {
return this.resolver.getMethodBinding(this.binding.original());
}
/**
* @see IMethodBinding#overrides(IMethodBinding)
*/
public boolean overrides(IMethodBinding otherMethod) {
LookupEnvironment lookupEnvironment = this.resolver.lookupEnvironment();
return lookupEnvironment != null
&& lookupEnvironment.methodVerifier().doesMethodOverride(this.binding, ((MethodBinding) otherMethod).binding);
}
/**
* For debugging purpose only.
* @see java.lang.Object#toString()
*/
public String toString() {
return this.binding.toString();
}
/*
* Method binding representing a lambda expression.
* Most properties are read from the SAM descriptor,
* but key, parameter types, and annotations are taken from the lambda implementation.
* Additionally we store the declaring member (see #getDeclaringMember()).
*/
static class LambdaMethod extends MethodBinding {
private MethodBinding implementation;
private IBinding declaringMember;
public LambdaMethod(DefaultBindingResolver resolver,
org.eclipse.jdt.internal.compiler.lookup.MethodBinding lambdaDescriptor,
org.eclipse.jdt.internal.compiler.lookup.MethodBinding implementation,
IBinding declaringMember)
{
super(resolver, lambdaDescriptor);
this.implementation = new MethodBinding(resolver, implementation);
this.declaringMember = declaringMember;
}
/**
* @see IBinding#getModifiers()
*/
public int getModifiers() {
return super.getModifiers() & ~ClassFileConstants.AccAbstract;
}
/**
* @see IBinding#getKey()
*/
public String getKey() {
return this.implementation.getKey();
}
@Override
public ITypeBinding[] getParameterTypes() {
return this.implementation.getParameterTypes();
}
@Override
public IAnnotationBinding[] getParameterAnnotations(int paramIndex) {
return this.implementation.getParameterAnnotations(paramIndex);
}
public IAnnotationBinding[] getAnnotations() {
return this.implementation.getAnnotations();
}
@Override
public IBinding getDeclaringMember() {
return this.declaringMember;
}
@Override
public IMethodBinding getMethodDeclaration() {
return this.resolver.getMethodBinding(this.binding);
}
@Override
public String toString() {
return super.toString().replace("public abstract ", "public "); //$NON-NLS-1$//$NON-NLS-2$
}
}
}