| /* |
| * Copyright 2003-2004 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package com.sun.tools.javadoc; |
| |
| |
| import com.sun.javadoc.*; |
| |
| import com.sun.tools.javac.code.Attribute; |
| import com.sun.tools.javac.code.Symbol.*; |
| import com.sun.tools.javac.code.Type; |
| import com.sun.tools.javac.code.TypeTags; |
| |
| |
| /** |
| * Represents a value of an annotation type element. |
| * |
| * @author Scott Seligman |
| * @since 1.5 |
| */ |
| |
| public class AnnotationValueImpl implements AnnotationValue { |
| |
| private final DocEnv env; |
| private final Attribute attr; |
| |
| |
| AnnotationValueImpl(DocEnv env, Attribute attr) { |
| this.env = env; |
| this.attr = attr; |
| } |
| |
| /** |
| * Returns the value. |
| * The type of the returned object is one of the following: |
| * <ul><li> a wrapper class for a primitive type |
| * <li> <code>String</code> |
| * <li> <code>Type</code> (representing a class literal) |
| * <li> <code>FieldDoc</code> (representing an enum constant) |
| * <li> <code>AnnotationDesc</code> |
| * <li> <code>AnnotationValue[]</code> |
| * </ul> |
| */ |
| public Object value() { |
| ValueVisitor vv = new ValueVisitor(); |
| attr.accept(vv); |
| return vv.value; |
| } |
| |
| private class ValueVisitor implements Attribute.Visitor { |
| public Object value; |
| |
| public void visitConstant(Attribute.Constant c) { |
| if (c.type.tag == TypeTags.BOOLEAN) { |
| // javac represents false and true as integers 0 and 1 |
| value = Boolean.valueOf( |
| ((Integer)c.value).intValue() != 0); |
| } else { |
| value = c.value; |
| } |
| } |
| |
| public void visitClass(Attribute.Class c) { |
| value = TypeMaker.getType(env, |
| env.types.erasure(c.type)); |
| } |
| |
| public void visitEnum(Attribute.Enum e) { |
| value = env.getFieldDoc(e.value); |
| } |
| |
| public void visitCompound(Attribute.Compound c) { |
| value = new AnnotationDescImpl(env, c); |
| } |
| |
| public void visitArray(Attribute.Array a) { |
| AnnotationValue vals[] = new AnnotationValue[a.values.length]; |
| for (int i = 0; i < vals.length; i++) { |
| vals[i] = new AnnotationValueImpl(env, a.values[i]); |
| } |
| value = vals; |
| } |
| |
| public void visitError(Attribute.Error e) { |
| value = "<error>"; |
| } |
| } |
| |
| /** |
| * Returns a string representation of the value. |
| * |
| * @return the text of a Java language annotation value expression |
| * whose value is the value of this annotation type element. |
| */ |
| public String toString() { |
| ToStringVisitor tv = new ToStringVisitor(); |
| attr.accept(tv); |
| return tv.toString(); |
| } |
| |
| private class ToStringVisitor implements Attribute.Visitor { |
| private final StringBuffer sb = new StringBuffer(); |
| |
| public String toString() { |
| return sb.toString(); |
| } |
| |
| public void visitConstant(Attribute.Constant c) { |
| if (c.type.tag == TypeTags.BOOLEAN) { |
| // javac represents false and true as integers 0 and 1 |
| sb.append(((Integer)c.value).intValue() != 0); |
| } else { |
| sb.append(FieldDocImpl.constantValueExpression(c.value)); |
| } |
| } |
| |
| public void visitClass(Attribute.Class c) { |
| sb.append(c); |
| } |
| |
| public void visitEnum(Attribute.Enum e) { |
| sb.append(e); |
| } |
| |
| public void visitCompound(Attribute.Compound c) { |
| sb.append(new AnnotationDescImpl(env, c)); |
| } |
| |
| public void visitArray(Attribute.Array a) { |
| // Omit braces from singleton. |
| if (a.values.length != 1) sb.append('{'); |
| |
| boolean first = true; |
| for (Attribute elem : a.values) { |
| if (first) { |
| first = false; |
| } else { |
| sb.append(", "); |
| } |
| elem.accept(this); |
| } |
| // Omit braces from singleton. |
| if (a.values.length != 1) sb.append('}'); |
| } |
| |
| public void visitError(Attribute.Error e) { |
| sb.append("<error>"); |
| } |
| } |
| } |