| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.codehaus.groovy.ast; |
| |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| import org.codehaus.groovy.ast.expr.Expression; |
| |
| |
| /** |
| * Represents an annotation which can be attached to interfaces, classes, methods and fields. |
| * |
| * @author <a href="mailto:jstrachan@protique.com">James Strachan</a> |
| * @author <a href='mailto:the[dot]mindstorm[at]gmail[dot]com'>Alex Popescu</a> |
| * @version $Revision$ |
| */ |
| public class AnnotationNode extends ASTNode { |
| public static final int TYPE_TARGET = 1; |
| public static final int CONSTRUCTOR_TARGET = 1 << 1; |
| public static final int METHOD_TARGET = 1 << 2; |
| public static final int FIELD_TARGET = 1 << 3; |
| public static final int PARAMETER_TARGET = 1 << 4; |
| public static final int LOCAL_VARIABLE_TARGET = 1 << 5; |
| public static final int ANNOTATION_TARGET = 1 << 6; |
| private static final int ALL_TARGETS = TYPE_TARGET | CONSTRUCTOR_TARGET | METHOD_TARGET |
| | FIELD_TARGET | PARAMETER_TARGET | LOCAL_VARIABLE_TARGET | ANNOTATION_TARGET; |
| |
| private final ClassNode classNode; |
| private Map members = new HashMap(); |
| private boolean runtimeRetention= false; |
| private boolean sourceRetention= false; |
| private int allowedTargets = ALL_TARGETS; |
| private boolean valid; |
| |
| public AnnotationNode(ClassNode classNode) { |
| this.classNode = classNode; |
| } |
| |
| public ClassNode getClassNode() { |
| return classNode; |
| } |
| |
| public Map getMembers() { |
| return members; |
| } |
| |
| public Expression getMember(String name) { |
| return (Expression) members.get(name); |
| } |
| |
| public void addMember(String name, Expression value) { |
| Expression oldValue = (Expression) members.get(name); |
| if (oldValue == null) { |
| members.put(name, value); |
| } |
| else { |
| List list = null; |
| if (oldValue instanceof List) { |
| list = (List) oldValue; |
| } |
| else { |
| list = new ArrayList(); |
| list.add(oldValue); |
| members.put(name, list); |
| } |
| list.add(value); |
| } |
| } |
| |
| public void setMember(String name, Expression value) { |
| members.put(name, value); |
| } |
| |
| public boolean isBuiltIn(){ |
| return false; |
| } |
| |
| /** |
| * Flag corresponding to <code>RetentionPolicy</code>. |
| * @return <tt>true</tt> if the annotation should be visible at runtime, |
| * <tt>false</tt> otherwise |
| */ |
| public boolean hasRuntimeRetention() { |
| return this.runtimeRetention; |
| } |
| |
| /** |
| * Sets the internal flag of this annotation runtime retention policy. |
| * If the current annotation has |
| * <code>RetentionPolicy.RUNTIME</code> or if <tt>false</tt> |
| * if the <code>RetentionPolicy.CLASS</code>. |
| * @param flag if <tt>true</tt> then current annotation is marked as having |
| * <code>RetentionPolicy.RUNTIME</code>. If <tt>false</tt> then |
| * the annotation has <code>RetentionPolicy.CLASS</code>. |
| */ |
| public void setRuntimeRetention(boolean flag) { |
| this.runtimeRetention = flag; |
| } |
| |
| /** |
| * Flag corresponding to <code>RetentionPolicy.SOURCE</code>. |
| * @return <tt>true</tt> if the annotation is only allowed in sources |
| * <tt>false</tt> otherwise |
| */ |
| public boolean hasSourceRetention() { |
| return this.sourceRetention; |
| } |
| |
| /** Sets the internal flag if the current annotation has |
| * <code>RetentionPolicy.SOURCE</code>. |
| */ |
| public void setSourceRetention(boolean flag) { |
| this.sourceRetention = flag; |
| } |
| |
| public void setAllowedTargets(int bitmap) { |
| this.allowedTargets = bitmap; |
| } |
| |
| public boolean isTargetAllowed(int target) { |
| return (this.allowedTargets & target) == target; |
| } |
| |
| /** |
| * Set if the current annotation is verified and passed all |
| * validations |
| * @param flag |
| */ |
| public void setValid(boolean flag) { |
| this.valid = flag; |
| } |
| |
| /** |
| * Returns the state of this annotation (verified and all verification passed). |
| */ |
| public boolean isValid() { |
| return this.valid; |
| } |
| |
| public static final String targetToName(int target) { |
| switch(target) { |
| case TYPE_TARGET: |
| return "TYPE"; |
| case CONSTRUCTOR_TARGET: |
| return "CONSTRUCTOR"; |
| case METHOD_TARGET: |
| return "METHOD"; |
| case FIELD_TARGET: |
| return "FIELD"; |
| case PARAMETER_TARGET: |
| return "PARAMETER"; |
| case LOCAL_VARIABLE_TARGET: |
| return "LOCAL_VARIABLE"; |
| case ANNOTATION_TARGET: |
| return "ANNOTATION"; |
| default: |
| return "unknown target"; |
| } |
| } |
| } |