| /******************************************************************************* |
| * Copyright (c) 2000, 2009 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.compiler.lookup; |
| |
| public class AnnotationHolder { |
| AnnotationBinding[] annotations; |
| |
| static AnnotationHolder storeAnnotations(AnnotationBinding[] annotations, AnnotationBinding[][] parameterAnnotations, Object defaultValue, LookupEnvironment optionalEnv) { |
| if (parameterAnnotations != null) { |
| boolean isEmpty = true; |
| for (int i = parameterAnnotations.length; isEmpty && --i >= 0;) |
| if (parameterAnnotations[i] != null && parameterAnnotations[i].length > 0) |
| isEmpty = false; |
| if (isEmpty) |
| parameterAnnotations = null; // does not have any |
| } |
| |
| if (defaultValue != null) |
| return new AnnotationMethodHolder(annotations, parameterAnnotations, defaultValue, optionalEnv); |
| if (parameterAnnotations != null) |
| return new MethodHolder(annotations, parameterAnnotations); |
| return new AnnotationHolder().setAnnotations(annotations); |
| } |
| |
| AnnotationBinding[] getAnnotations() { |
| return this.annotations; |
| } |
| Object getDefaultValue() { |
| return null; |
| } |
| public AnnotationBinding[][] getParameterAnnotations() { |
| return null; |
| } |
| AnnotationBinding[] getParameterAnnotations(int paramIndex) { |
| return Binding.NO_ANNOTATIONS; |
| } |
| AnnotationHolder setAnnotations(AnnotationBinding[] annotations) { |
| this.annotations = annotations; |
| if (annotations == null || annotations.length == 0) |
| return null; // no longer needed |
| return this; |
| } |
| |
| static class MethodHolder extends AnnotationHolder { |
| AnnotationBinding[][] parameterAnnotations; // is null if empty |
| |
| MethodHolder(AnnotationBinding[] annotations, AnnotationBinding[][] parameterAnnotations) { |
| super(); |
| setAnnotations(annotations); |
| this.parameterAnnotations = parameterAnnotations; |
| } |
| @Override |
| public AnnotationBinding[][] getParameterAnnotations() { |
| return this.parameterAnnotations; |
| } |
| @Override |
| AnnotationBinding[] getParameterAnnotations(int paramIndex) { |
| AnnotationBinding[] result = this.parameterAnnotations == null ? null : this.parameterAnnotations[paramIndex]; |
| return result == null ? Binding.NO_ANNOTATIONS : result; |
| } |
| @Override |
| AnnotationHolder setAnnotations(AnnotationBinding[] annotations) { |
| this.annotations = annotations == null || annotations.length == 0 ? Binding.NO_ANNOTATIONS : annotations; |
| return this; |
| } |
| } |
| |
| static class AnnotationMethodHolder extends MethodHolder { |
| Object defaultValue; |
| LookupEnvironment env; |
| |
| AnnotationMethodHolder(AnnotationBinding[] annotations, AnnotationBinding[][] parameterAnnotations, Object defaultValue, LookupEnvironment optionalEnv) { |
| super(annotations, parameterAnnotations); |
| this.defaultValue = defaultValue; |
| this.env = optionalEnv; |
| } |
| @Override |
| Object getDefaultValue() { |
| if (this.defaultValue instanceof UnresolvedReferenceBinding) { |
| if (this.env == null) |
| throw new IllegalStateException(); |
| this.defaultValue = ((UnresolvedReferenceBinding) this.defaultValue).resolve(this.env, false); |
| } |
| return this.defaultValue; |
| } |
| } |
| } |