aoqi@0: /* aoqi@0: * Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved. aoqi@0: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. aoqi@0: * aoqi@0: * This code is free software; you can redistribute it and/or modify it aoqi@0: * under the terms of the GNU General Public License version 2 only, as aoqi@0: * published by the Free Software Foundation. Oracle designates this aoqi@0: * particular file as subject to the "Classpath" exception as provided aoqi@0: * by Oracle in the LICENSE file that accompanied this code. aoqi@0: * aoqi@0: * This code is distributed in the hope that it will be useful, but WITHOUT aoqi@0: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or aoqi@0: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License aoqi@0: * version 2 for more details (a copy is included in the LICENSE file that aoqi@0: * accompanied this code). aoqi@0: * aoqi@0: * You should have received a copy of the GNU General Public License version aoqi@0: * 2 along with this work; if not, write to the Free Software Foundation, aoqi@0: * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. aoqi@0: * aoqi@0: * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA aoqi@0: * or visit www.oracle.com if you need additional information or have any aoqi@0: * questions. aoqi@0: */ aoqi@0: aoqi@0: package com.sun.tools.javadoc; aoqi@0: aoqi@0: import com.sun.javadoc.*; aoqi@0: aoqi@0: import com.sun.tools.javac.code.Attribute; aoqi@0: aoqi@0: import static com.sun.tools.javac.code.TypeTag.BOOLEAN; aoqi@0: aoqi@0: /** aoqi@0: * Represents a value of an annotation type element. aoqi@0: * aoqi@0: *

This is NOT part of any supported API. aoqi@0: * If you write code that depends on this, you do so at your own risk. aoqi@0: * This code and its internal interfaces are subject to change or aoqi@0: * deletion without notice. aoqi@0: * aoqi@0: * @author Scott Seligman aoqi@0: * @since 1.5 aoqi@0: */ aoqi@0: aoqi@0: public class AnnotationValueImpl implements AnnotationValue { aoqi@0: aoqi@0: private final DocEnv env; aoqi@0: private final Attribute attr; aoqi@0: aoqi@0: aoqi@0: AnnotationValueImpl(DocEnv env, Attribute attr) { aoqi@0: this.env = env; aoqi@0: this.attr = attr; aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Returns the value. aoqi@0: * The type of the returned object is one of the following: aoqi@0: *

aoqi@0: */ aoqi@0: public Object value() { aoqi@0: ValueVisitor vv = new ValueVisitor(); aoqi@0: attr.accept(vv); aoqi@0: return vv.value; aoqi@0: } aoqi@0: aoqi@0: private class ValueVisitor implements Attribute.Visitor { aoqi@0: public Object value; aoqi@0: aoqi@0: public void visitConstant(Attribute.Constant c) { aoqi@0: if (c.type.hasTag(BOOLEAN)) { aoqi@0: // javac represents false and true as integers 0 and 1 aoqi@0: value = Boolean.valueOf( aoqi@0: ((Integer)c.value).intValue() != 0); aoqi@0: } else { aoqi@0: value = c.value; aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: public void visitClass(Attribute.Class c) { aoqi@0: value = TypeMaker.getType(env, aoqi@0: env.types.erasure(c.classType)); aoqi@0: } aoqi@0: aoqi@0: public void visitEnum(Attribute.Enum e) { aoqi@0: value = env.getFieldDoc(e.value); aoqi@0: } aoqi@0: aoqi@0: public void visitCompound(Attribute.Compound c) { aoqi@0: value = new AnnotationDescImpl(env, c); aoqi@0: } aoqi@0: aoqi@0: public void visitArray(Attribute.Array a) { aoqi@0: AnnotationValue vals[] = new AnnotationValue[a.values.length]; aoqi@0: for (int i = 0; i < vals.length; i++) { aoqi@0: vals[i] = new AnnotationValueImpl(env, a.values[i]); aoqi@0: } aoqi@0: value = vals; aoqi@0: } aoqi@0: aoqi@0: public void visitError(Attribute.Error e) { aoqi@0: value = ""; aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: /** aoqi@0: * Returns a string representation of the value. aoqi@0: * aoqi@0: * @return the text of a Java language annotation value expression aoqi@0: * whose value is the value of this annotation type element. aoqi@0: */ aoqi@0: @Override aoqi@0: public String toString() { aoqi@0: ToStringVisitor tv = new ToStringVisitor(); aoqi@0: attr.accept(tv); aoqi@0: return tv.toString(); aoqi@0: } aoqi@0: aoqi@0: private class ToStringVisitor implements Attribute.Visitor { aoqi@0: private final StringBuilder sb = new StringBuilder(); aoqi@0: aoqi@0: @Override aoqi@0: public String toString() { aoqi@0: return sb.toString(); aoqi@0: } aoqi@0: aoqi@0: public void visitConstant(Attribute.Constant c) { aoqi@0: if (c.type.hasTag(BOOLEAN)) { aoqi@0: // javac represents false and true as integers 0 and 1 aoqi@0: sb.append(((Integer)c.value).intValue() != 0); aoqi@0: } else { aoqi@0: sb.append(FieldDocImpl.constantValueExpression(c.value)); aoqi@0: } aoqi@0: } aoqi@0: aoqi@0: public void visitClass(Attribute.Class c) { aoqi@0: sb.append(c); aoqi@0: } aoqi@0: aoqi@0: public void visitEnum(Attribute.Enum e) { aoqi@0: sb.append(e); aoqi@0: } aoqi@0: aoqi@0: public void visitCompound(Attribute.Compound c) { aoqi@0: sb.append(new AnnotationDescImpl(env, c)); aoqi@0: } aoqi@0: aoqi@0: public void visitArray(Attribute.Array a) { aoqi@0: // Omit braces from singleton. aoqi@0: if (a.values.length != 1) sb.append('{'); aoqi@0: aoqi@0: boolean first = true; aoqi@0: for (Attribute elem : a.values) { aoqi@0: if (first) { aoqi@0: first = false; aoqi@0: } else { aoqi@0: sb.append(", "); aoqi@0: } aoqi@0: elem.accept(this); aoqi@0: } aoqi@0: // Omit braces from singleton. aoqi@0: if (a.values.length != 1) sb.append('}'); aoqi@0: } aoqi@0: aoqi@0: public void visitError(Attribute.Error e) { aoqi@0: sb.append(""); aoqi@0: } aoqi@0: } aoqi@0: }