duke@1: /* ohair@554: * Copyright (c) 2003, 2004, Oracle and/or its affiliates. All rights reserved. duke@1: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. duke@1: * duke@1: * This code is free software; you can redistribute it and/or modify it duke@1: * under the terms of the GNU General Public License version 2 only, as ohair@554: * published by the Free Software Foundation. Oracle designates this duke@1: * particular file as subject to the "Classpath" exception as provided ohair@554: * by Oracle in the LICENSE file that accompanied this code. duke@1: * duke@1: * This code is distributed in the hope that it will be useful, but WITHOUT duke@1: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or duke@1: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License duke@1: * version 2 for more details (a copy is included in the LICENSE file that duke@1: * accompanied this code). duke@1: * duke@1: * You should have received a copy of the GNU General Public License version duke@1: * 2 along with this work; if not, write to the Free Software Foundation, duke@1: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. duke@1: * ohair@554: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA ohair@554: * or visit www.oracle.com if you need additional information or have any ohair@554: * questions. duke@1: */ duke@1: duke@1: package com.sun.tools.javadoc; duke@1: duke@1: duke@1: import com.sun.javadoc.*; duke@1: duke@1: import com.sun.tools.javac.code.Attribute; duke@1: import com.sun.tools.javac.code.Symbol.*; duke@1: import com.sun.tools.javac.code.Type; duke@1: import com.sun.tools.javac.code.TypeTags; duke@1: duke@1: duke@1: /** duke@1: * Represents a value of an annotation type element. duke@1: * duke@1: * @author Scott Seligman duke@1: * @since 1.5 duke@1: */ duke@1: duke@1: public class AnnotationValueImpl implements AnnotationValue { duke@1: duke@1: private final DocEnv env; duke@1: private final Attribute attr; duke@1: duke@1: duke@1: AnnotationValueImpl(DocEnv env, Attribute attr) { duke@1: this.env = env; duke@1: this.attr = attr; duke@1: } duke@1: duke@1: /** duke@1: * Returns the value. duke@1: * The type of the returned object is one of the following: duke@1: * duke@1: */ duke@1: public Object value() { duke@1: ValueVisitor vv = new ValueVisitor(); duke@1: attr.accept(vv); duke@1: return vv.value; duke@1: } duke@1: duke@1: private class ValueVisitor implements Attribute.Visitor { duke@1: public Object value; duke@1: duke@1: public void visitConstant(Attribute.Constant c) { duke@1: if (c.type.tag == TypeTags.BOOLEAN) { duke@1: // javac represents false and true as integers 0 and 1 duke@1: value = Boolean.valueOf( duke@1: ((Integer)c.value).intValue() != 0); duke@1: } else { duke@1: value = c.value; duke@1: } duke@1: } duke@1: duke@1: public void visitClass(Attribute.Class c) { duke@1: value = TypeMaker.getType(env, duke@1: env.types.erasure(c.type)); duke@1: } duke@1: duke@1: public void visitEnum(Attribute.Enum e) { duke@1: value = env.getFieldDoc(e.value); duke@1: } duke@1: duke@1: public void visitCompound(Attribute.Compound c) { duke@1: value = new AnnotationDescImpl(env, c); duke@1: } duke@1: duke@1: public void visitArray(Attribute.Array a) { duke@1: AnnotationValue vals[] = new AnnotationValue[a.values.length]; duke@1: for (int i = 0; i < vals.length; i++) { duke@1: vals[i] = new AnnotationValueImpl(env, a.values[i]); duke@1: } duke@1: value = vals; duke@1: } duke@1: duke@1: public void visitError(Attribute.Error e) { duke@1: value = ""; duke@1: } duke@1: } duke@1: duke@1: /** duke@1: * Returns a string representation of the value. duke@1: * duke@1: * @return the text of a Java language annotation value expression duke@1: * whose value is the value of this annotation type element. duke@1: */ duke@1: public String toString() { duke@1: ToStringVisitor tv = new ToStringVisitor(); duke@1: attr.accept(tv); duke@1: return tv.toString(); duke@1: } duke@1: duke@1: private class ToStringVisitor implements Attribute.Visitor { duke@1: private final StringBuffer sb = new StringBuffer(); duke@1: duke@1: public String toString() { duke@1: return sb.toString(); duke@1: } duke@1: duke@1: public void visitConstant(Attribute.Constant c) { duke@1: if (c.type.tag == TypeTags.BOOLEAN) { duke@1: // javac represents false and true as integers 0 and 1 duke@1: sb.append(((Integer)c.value).intValue() != 0); duke@1: } else { duke@1: sb.append(FieldDocImpl.constantValueExpression(c.value)); duke@1: } duke@1: } duke@1: duke@1: public void visitClass(Attribute.Class c) { duke@1: sb.append(c); duke@1: } duke@1: duke@1: public void visitEnum(Attribute.Enum e) { duke@1: sb.append(e); duke@1: } duke@1: duke@1: public void visitCompound(Attribute.Compound c) { duke@1: sb.append(new AnnotationDescImpl(env, c)); duke@1: } duke@1: duke@1: public void visitArray(Attribute.Array a) { duke@1: // Omit braces from singleton. duke@1: if (a.values.length != 1) sb.append('{'); duke@1: duke@1: boolean first = true; duke@1: for (Attribute elem : a.values) { duke@1: if (first) { duke@1: first = false; duke@1: } else { duke@1: sb.append(", "); duke@1: } duke@1: elem.accept(this); duke@1: } duke@1: // Omit braces from singleton. duke@1: if (a.values.length != 1) sb.append('}'); duke@1: } duke@1: duke@1: public void visitError(Attribute.Error e) { duke@1: sb.append(""); duke@1: } duke@1: } duke@1: }