| /******************************************************************************* |
| * Copyright (c) 2000, 2014 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.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]; |
| private org.eclipse.jdt.internal.compiler.lookup.MethodBinding binding; |
| private BindingResolver resolver; |
| private ITypeBinding[] parameterTypes; |
| private ITypeBinding[] exceptionTypes; |
| private String name; |
| private ITypeBinding declaringClass; |
| private ITypeBinding returnType; |
| private String key; |
| private ITypeBinding[] typeParameters; |
| private ITypeBinding[] typeArguments; |
| private IAnnotationBinding[] annotations; |
| private 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; |
| } |
| |
| 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<pLength; j++) { |
| IAnnotationBinding domAnnotation = this.resolver.getAnnotationInstance(paramBindingAnnotations[j]); |
| if (domAnnotation == null) { |
| domAnnotations[i] = AnnotationBinding.NoAnnotations; |
| break; |
| } |
| domAnnotations[i][j] = domAnnotation; |
| } |
| } |
| this.parameterAnnotations = domAnnotations; |
| |
| return this.parameterAnnotations[index]; |
| } |
| |
| /** |
| * @see IMethodBinding#getParameterTypes() |
| */ |
| public ITypeBinding[] getParameterTypes() { |
| if (this.parameterTypes != null) { |
| return this.parameterTypes; |
| } |
| org.eclipse.jdt.internal.compiler.lookup.TypeBinding[] parameters = this.binding.parameters; |
| int length = parameters == null ? 0 : parameters.length; |
| if (length == 0) { |
| return this.parameterTypes = NO_TYPE_BINDINGS; |
| } else { |
| ITypeBinding[] paramTypes = new ITypeBinding[length]; |
| for (int i = 0; i < length; i++) { |
| final TypeBinding parameterBinding = parameters[i]; |
| if (parameterBinding != null) { |
| ITypeBinding typeBinding = this.resolver.getTypeBinding(parameterBinding); |
| if (typeBinding == null) { |
| return this.parameterTypes = NO_TYPE_BINDINGS; |
| } |
| paramTypes[i] = typeBinding; |
| } else { |
| // log error |
| StringBuffer message = new StringBuffer("Report method binding where a parameter is null:\n"); //$NON-NLS-1$ |
| message.append(toString()); |
| Util.log(new IllegalArgumentException(), message.toString()); |
| // report no binding since one or more parameter has no binding |
| return this.parameterTypes = NO_TYPE_BINDINGS; |
| } |
| } |
| return this.parameterTypes = paramTypes; |
| } |
| } |
| |
| /** |
| * @see IMethodBinding#getDeclaredReceiverType() |
| */ |
| public ITypeBinding getDeclaredReceiverType() { |
| return this.resolver.getTypeBinding(this.binding.receiver); |
| } |
| /** |
| * @see IMethodBinding#getReturnType() |
| */ |
| public ITypeBinding getReturnType() { |
| if (this.returnType == null) { |
| this.returnType = this.resolver.getTypeBinding(this.binding.returnType); |
| } |
| return this.returnType; |
| } |
| |
| protected IAnnotationBinding[] filterTypeAnnotations(org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding[] internalAnnotations) { |
| int length = internalAnnotations == null ? 0 : internalAnnotations.length; |
| if (length != 0) { |
| IAnnotationBinding[] tempAnnotations = new IAnnotationBinding[length]; |
| int convertedAnnotationCount = 0; |
| final boolean isConstructor = this.isConstructor(); |
| for (int i = 0; i < length; i++) { |
| org.eclipse.jdt.internal.compiler.lookup.AnnotationBinding internalAnnotation = internalAnnotations[i]; |
| final ReferenceBinding annotationType = internalAnnotation.getAnnotationType(); |
| long metaTagBits = annotationType.getAnnotationTagBits(); |
| |
| if (isConstructor && (metaTagBits & TagBits.AnnotationForConstructor) == 0) |
| continue; // must be type use. |
| |
| final IAnnotationBinding annotationInstance = this.resolver.getAnnotationInstance(internalAnnotation); |
| if (annotationInstance == null) { |
| continue; |
| } |
| tempAnnotations[convertedAnnotationCount++] = annotationInstance; |
| } |
| if (convertedAnnotationCount == length) return tempAnnotations; |
| if (convertedAnnotationCount == 0) return AnnotationBinding.NoAnnotations; |
| |
| System.arraycopy(tempAnnotations, 0, (tempAnnotations = new IAnnotationBinding[convertedAnnotationCount]), 0, convertedAnnotationCount); |
| return tempAnnotations; |
| } |
| return AnnotationBinding.NoAnnotations; |
| } |
| |
| public Object getDefaultValue() { |
| if (isAnnotationMember()) |
| return MemberValuePairBinding.buildDOMValue(this.binding.getDefaultValue(), this.resolver); |
| return null; |
| } |
| |
| /** |
| * @see IMethodBinding#getExceptionTypes() |
| */ |
| public ITypeBinding[] getExceptionTypes() { |
| if (this.exceptionTypes != null) { |
| return this.exceptionTypes; |
| } |
| org.eclipse.jdt.internal.compiler.lookup.TypeBinding[] exceptions = this.binding.thrownExceptions; |
| int length = exceptions == null ? 0 : exceptions.length; |
| if (length == 0) { |
| return this.exceptionTypes = NO_TYPE_BINDINGS; |
| } |
| ITypeBinding[] exTypes = new ITypeBinding[length]; |
| for (int i = 0; i < length; i++) { |
| ITypeBinding typeBinding = this.resolver.getTypeBinding(exceptions[i]); |
| if (typeBinding == null) { |
| return this.exceptionTypes = NO_TYPE_BINDINGS; |
| } |
| exTypes[i] = typeBinding; |
| } |
| return this.exceptionTypes = exTypes; |
| } |
| |
| public IJavaElement getJavaElement() { |
| JavaElement element = getUnresolvedJavaElement(); |
| if (element == null) |
| return null; |
| return element.resolved(this.binding); |
| } |
| |
| private JavaElement getUnresolvedJavaElement() { |
| if (JavaCore.getPlugin() == null) { |
| return null; |
| } |
| if (!(this.resolver instanceof DefaultBindingResolver)) return null; |
| |
| DefaultBindingResolver defaultBindingResolver = (DefaultBindingResolver) this.resolver; |
| if (!defaultBindingResolver.fromJavaProject) return null; |
| return Util.getUnresolvedJavaElement( |
| this.binding, |
| defaultBindingResolver.workingCopyOwner, |
| defaultBindingResolver.getBindingsToNodesMap()); |
| } |
| |
| /** |
| * @see IBinding#getKind() |
| */ |
| public int getKind() { |
| return IBinding.METHOD; |
| } |
| |
| /** |
| * @see IBinding#getModifiers() |
| */ |
| public int getModifiers() { |
| return this.binding.getAccessFlags() & VALID_MODIFIERS; |
| } |
| |
| /** |
| * @see IBinding#isDeprecated() |
| */ |
| public boolean isDeprecated() { |
| return this.binding.isDeprecated(); |
| } |
| |
| /** |
| * @see IBinding#isRecovered() |
| */ |
| public boolean isRecovered() { |
| return false; |
| } |
| |
| /** |
| * @see IBinding#isSynthetic() |
| */ |
| public boolean isSynthetic() { |
| return this.binding.isSynthetic(); |
| } |
| |
| /** |
| * @see org.eclipse.jdt.core.dom.IMethodBinding#isVarargs() |
| * @since 3.1 |
| */ |
| public boolean isVarargs() { |
| return this.binding.isVarargs(); |
| } |
| |
| /** |
| * @see IBinding#getKey() |
| */ |
| public String getKey() { |
| if (this.key == null) { |
| this.key = new String(this.binding.computeUniqueKey()); |
| } |
| return this.key; |
| } |
| |
| /** |
| * @see IBinding#isEqualTo(IBinding) |
| * @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 MethodBinding)) { |
| return false; |
| } |
| org.eclipse.jdt.internal.compiler.lookup.MethodBinding otherBinding = ((MethodBinding) other).binding; |
| return BindingComparator.isEqual(this.binding, otherBinding); |
| } |
| |
| /** |
| * @see org.eclipse.jdt.core.dom.IMethodBinding#getTypeParameters() |
| */ |
| public ITypeBinding[] getTypeParameters() { |
| if (this.typeParameters != null) { |
| return this.typeParameters; |
| } |
| TypeVariableBinding[] typeVariableBindings = this.binding.typeVariables(); |
| int typeVariableBindingsLength = typeVariableBindings == null ? 0 : typeVariableBindings.length; |
| if (typeVariableBindingsLength == 0) { |
| return this.typeParameters = NO_TYPE_BINDINGS; |
| } |
| ITypeBinding[] tParameters = 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; |
| } |
| tParameters[i] = typeBinding; |
| } |
| return this.typeParameters = tParameters; |
| } |
| |
| /** |
| * @see org.eclipse.jdt.core.dom.IMethodBinding#isGenericMethod() |
| * @since 3.1 |
| */ |
| public boolean isGenericMethod() { |
| // equivalent to return getTypeParameters().length > 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(); |
| } |
| } |