• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/classes/com/sun/tools/javadoc/AnnotationValueImpl.java@2eb010b6cb22 (annotated)

src/share/classes/com/sun/tools/javadoc/AnnotationValueImpl.java

Thu, 31 Aug 2017 15:17:03 +0800

author

aoqi

date

Thu, 31 Aug 2017 15:17:03 +0800

changeset 2525

2eb010b6cb22

parent 1755

ddb4a2bfcd82

parent 0

959103a6100f

permissions

-rw-r--r--

merge

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation. Oracle designates this
aoqi@0	8	* particular file as subject to the "Classpath" exception as provided
aoqi@0	9	* by Oracle in the LICENSE file that accompanied this code.
aoqi@0	10	*
aoqi@0	11	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	14	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	15	* accompanied this code).
aoqi@0	16	*
aoqi@0	17	* You should have received a copy of the GNU General Public License version
aoqi@0	18	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	19	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	20	*
aoqi@0	21	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	22	* or visit www.oracle.com if you need additional information or have any
aoqi@0	23	* questions.
aoqi@0	24	*/
aoqi@0	25
aoqi@0	26	package com.sun.tools.javadoc;
aoqi@0	27
aoqi@0	28	import com.sun.javadoc.*;
aoqi@0	29
aoqi@0	30	import com.sun.tools.javac.code.Attribute;
aoqi@0	31
aoqi@0	32	import static com.sun.tools.javac.code.TypeTag.BOOLEAN;
aoqi@0	33
aoqi@0	34	/**
aoqi@0	35	* Represents a value of an annotation type element.
aoqi@0	36	*
aoqi@0	37	* <p><b>This is NOT part of any supported API.
aoqi@0	38	* If you write code that depends on this, you do so at your own risk.
aoqi@0	39	* This code and its internal interfaces are subject to change or
aoqi@0	40	* deletion without notice.</b>
aoqi@0	41	*
aoqi@0	42	* @author Scott Seligman
aoqi@0	43	* @since 1.5
aoqi@0	44	*/
aoqi@0	45
aoqi@0	46	public class AnnotationValueImpl implements AnnotationValue {
aoqi@0	47
aoqi@0	48	private final DocEnv env;
aoqi@0	49	private final Attribute attr;
aoqi@0	50
aoqi@0	51
aoqi@0	52	AnnotationValueImpl(DocEnv env, Attribute attr) {
aoqi@0	53	this.env = env;
aoqi@0	54	this.attr = attr;
aoqi@0	55	}
aoqi@0	56
aoqi@0	57	/**
aoqi@0	58	* Returns the value.
aoqi@0	59	* The type of the returned object is one of the following:
aoqi@0	60	* <ul><li> a wrapper class for a primitive type
aoqi@0	61	* <li> <code>String</code>
aoqi@0	62	* <li> <code>Type</code> (representing a class literal)
aoqi@0	63	* <li> <code>FieldDoc</code> (representing an enum constant)
aoqi@0	64	* <li> <code>AnnotationDesc</code>
aoqi@0	65	* <li> <code>AnnotationValue[]</code>
aoqi@0	66	* </ul>
aoqi@0	67	*/
aoqi@0	68	public Object value() {
aoqi@0	69	ValueVisitor vv = new ValueVisitor();
aoqi@0	70	attr.accept(vv);
aoqi@0	71	return vv.value;
aoqi@0	72	}
aoqi@0	73
aoqi@0	74	private class ValueVisitor implements Attribute.Visitor {
aoqi@0	75	public Object value;
aoqi@0	76
aoqi@0	77	public void visitConstant(Attribute.Constant c) {
aoqi@0	78	if (c.type.hasTag(BOOLEAN)) {
aoqi@0	79	// javac represents false and true as integers 0 and 1
aoqi@0	80	value = Boolean.valueOf(
aoqi@0	81	((Integer)c.value).intValue() != 0);
aoqi@0	82	} else {
aoqi@0	83	value = c.value;
aoqi@0	84	}
aoqi@0	85	}
aoqi@0	86
aoqi@0	87	public void visitClass(Attribute.Class c) {
aoqi@0	88	value = TypeMaker.getType(env,
aoqi@0	89	env.types.erasure(c.classType));
aoqi@0	90	}
aoqi@0	91
aoqi@0	92	public void visitEnum(Attribute.Enum e) {
aoqi@0	93	value = env.getFieldDoc(e.value);
aoqi@0	94	}
aoqi@0	95
aoqi@0	96	public void visitCompound(Attribute.Compound c) {
aoqi@0	97	value = new AnnotationDescImpl(env, c);
aoqi@0	98	}
aoqi@0	99
aoqi@0	100	public void visitArray(Attribute.Array a) {
aoqi@0	101	AnnotationValue vals[] = new AnnotationValue[a.values.length];
aoqi@0	102	for (int i = 0; i < vals.length; i++) {
aoqi@0	103	vals[i] = new AnnotationValueImpl(env, a.values[i]);
aoqi@0	104	}
aoqi@0	105	value = vals;
aoqi@0	106	}
aoqi@0	107
aoqi@0	108	public void visitError(Attribute.Error e) {
aoqi@0	109	value = "<error>";
aoqi@0	110	}
aoqi@0	111	}
aoqi@0	112
aoqi@0	113	/**
aoqi@0	114	* Returns a string representation of the value.
aoqi@0	115	*
aoqi@0	116	* @return the text of a Java language annotation value expression
aoqi@0	117	* whose value is the value of this annotation type element.
aoqi@0	118	*/
aoqi@0	119	@Override
aoqi@0	120	public String toString() {
aoqi@0	121	ToStringVisitor tv = new ToStringVisitor();
aoqi@0	122	attr.accept(tv);
aoqi@0	123	return tv.toString();
aoqi@0	124	}
aoqi@0	125
aoqi@0	126	private class ToStringVisitor implements Attribute.Visitor {
aoqi@0	127	private final StringBuilder sb = new StringBuilder();
aoqi@0	128
aoqi@0	129	@Override
aoqi@0	130	public String toString() {
aoqi@0	131	return sb.toString();
aoqi@0	132	}
aoqi@0	133
aoqi@0	134	public void visitConstant(Attribute.Constant c) {
aoqi@0	135	if (c.type.hasTag(BOOLEAN)) {
aoqi@0	136	// javac represents false and true as integers 0 and 1
aoqi@0	137	sb.append(((Integer)c.value).intValue() != 0);
aoqi@0	138	} else {
aoqi@0	139	sb.append(FieldDocImpl.constantValueExpression(c.value));
aoqi@0	140	}
aoqi@0	141	}
aoqi@0	142
aoqi@0	143	public void visitClass(Attribute.Class c) {
aoqi@0	144	sb.append(c);
aoqi@0	145	}
aoqi@0	146
aoqi@0	147	public void visitEnum(Attribute.Enum e) {
aoqi@0	148	sb.append(e);
aoqi@0	149	}
aoqi@0	150
aoqi@0	151	public void visitCompound(Attribute.Compound c) {
aoqi@0	152	sb.append(new AnnotationDescImpl(env, c));
aoqi@0	153	}
aoqi@0	154
aoqi@0	155	public void visitArray(Attribute.Array a) {
aoqi@0	156	// Omit braces from singleton.
aoqi@0	157	if (a.values.length != 1) sb.append('{');
aoqi@0	158
aoqi@0	159	boolean first = true;
aoqi@0	160	for (Attribute elem : a.values) {
aoqi@0	161	if (first) {
aoqi@0	162	first = false;
aoqi@0	163	} else {
aoqi@0	164	sb.append(", ");
aoqi@0	165	}
aoqi@0	166	elem.accept(this);
aoqi@0	167	}
aoqi@0	168	// Omit braces from singleton.
aoqi@0	169	if (a.values.length != 1) sb.append('}');
aoqi@0	170	}
aoqi@0	171
aoqi@0	172	public void visitError(Attribute.Error e) {
aoqi@0	173	sb.append("<error>");
aoqi@0	174	}
aoqi@0	175	}
aoqi@0	176	}