src/share/classes/com/sun/tools/javap/AnnotationWriter.java

Tue, 18 Jun 2013 20:56:04 -0700

author
mfang
date
Tue, 18 Jun 2013 20:56:04 -0700
changeset 1841
792c40d5185a
parent 1563
bc456436c613
child 2525
2eb010b6cb22
permissions
-rw-r--r--

8015657: jdk8 l10n resource file translation update 3
Reviewed-by: yhuang

jjg@46 1 /*
jjg@1521 2 * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved.
jjg@46 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jjg@46 4 *
jjg@46 5 * This code is free software; you can redistribute it and/or modify it
jjg@46 6 * under the terms of the GNU General Public License version 2 only, as
ohair@554 7 * published by the Free Software Foundation. Oracle designates this
jjg@46 8 * particular file as subject to the "Classpath" exception as provided
ohair@554 9 * by Oracle in the LICENSE file that accompanied this code.
jjg@46 10 *
jjg@46 11 * This code is distributed in the hope that it will be useful, but WITHOUT
jjg@46 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jjg@46 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
jjg@46 14 * version 2 for more details (a copy is included in the LICENSE file that
jjg@46 15 * accompanied this code).
jjg@46 16 *
jjg@46 17 * You should have received a copy of the GNU General Public License version
jjg@46 18 * 2 along with this work; if not, write to the Free Software Foundation,
jjg@46 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jjg@46 20 *
ohair@554 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
ohair@554 22 * or visit www.oracle.com if you need additional information or have any
ohair@554 23 * questions.
jjg@46 24 */
jjg@46 25
jjg@46 26 package com.sun.tools.javap;
jjg@46 27
jjg@46 28 import com.sun.tools.classfile.Annotation;
jjg@1521 29 import com.sun.tools.classfile.TypeAnnotation;
jjg@46 30 import com.sun.tools.classfile.Annotation.Annotation_element_value;
jjg@46 31 import com.sun.tools.classfile.Annotation.Array_element_value;
jjg@46 32 import com.sun.tools.classfile.Annotation.Class_element_value;
jjg@46 33 import com.sun.tools.classfile.Annotation.Enum_element_value;
jjg@46 34 import com.sun.tools.classfile.Annotation.Primitive_element_value;
jjg@338 35 import com.sun.tools.classfile.ConstantPool;
jjg@338 36 import com.sun.tools.classfile.ConstantPoolException;
jjg@338 37 import com.sun.tools.classfile.Descriptor;
jjg@338 38 import com.sun.tools.classfile.Descriptor.InvalidDescriptor;
jjg@46 39
jjg@46 40 /**
jjg@46 41 * A writer for writing annotations as text.
jjg@46 42 *
jjg@581 43 * <p><b>This is NOT part of any supported API.
jjg@581 44 * If you write code that depends on this, you do so at your own risk.
jjg@46 45 * This code and its internal interfaces are subject to change or
jjg@46 46 * deletion without notice.</b>
jjg@46 47 */
jjg@46 48 public class AnnotationWriter extends BasicWriter {
jjg@46 49 static AnnotationWriter instance(Context context) {
jjg@46 50 AnnotationWriter instance = context.get(AnnotationWriter.class);
jjg@46 51 if (instance == null)
jjg@46 52 instance = new AnnotationWriter(context);
jjg@46 53 return instance;
jjg@46 54 }
jjg@46 55
jjg@46 56 protected AnnotationWriter(Context context) {
jjg@46 57 super(context);
jjg@338 58 classWriter = ClassWriter.instance(context);
jjg@338 59 constantWriter = ConstantWriter.instance(context);
jjg@46 60 }
jjg@46 61
jjg@46 62 public void write(Annotation annot) {
jjg@338 63 write(annot, false);
jjg@338 64 }
jjg@338 65
jjg@338 66 public void write(Annotation annot, boolean resolveIndices) {
jjg@338 67 writeDescriptor(annot.type_index, resolveIndices);
jjg@338 68 boolean showParens = annot.num_element_value_pairs > 0 || !resolveIndices;
jjg@338 69 if (showParens)
jjg@338 70 print("(");
jjg@46 71 for (int i = 0; i < annot.num_element_value_pairs; i++) {
jjg@46 72 if (i > 0)
jjg@46 73 print(",");
jjg@338 74 write(annot.element_value_pairs[i], resolveIndices);
jjg@46 75 }
jjg@338 76 if (showParens)
jjg@338 77 print(")");
jjg@46 78 }
jjg@46 79
jjg@1521 80 public void write(TypeAnnotation annot) {
jjg@1521 81 write(annot, true, false);
jjg@1521 82 }
jjg@1521 83
jjg@1521 84 public void write(TypeAnnotation annot, boolean showOffsets, boolean resolveIndices) {
jjg@1521 85 write(annot.annotation, resolveIndices);
jjg@1521 86 print(": ");
jjg@1521 87 write(annot.position, showOffsets);
jjg@1521 88 }
jjg@1521 89
jjg@1521 90 public void write(TypeAnnotation.Position pos, boolean showOffsets) {
jjg@1521 91 print(pos.type);
jjg@1521 92
jjg@1521 93 switch (pos.type) {
jjg@1521 94 // instanceof
jjg@1521 95 case INSTANCEOF:
jjg@1521 96 // new expression
jjg@1521 97 case NEW:
jjg@1563 98 // constructor/method reference receiver
jjg@1563 99 case CONSTRUCTOR_REFERENCE:
jjg@1563 100 case METHOD_REFERENCE:
jjg@1521 101 if (showOffsets) {
jjg@1521 102 print(", offset=");
jjg@1521 103 print(pos.offset);
jjg@1521 104 }
jjg@1521 105 break;
jjg@1521 106 // local variable
jjg@1521 107 case LOCAL_VARIABLE:
jjg@1521 108 // resource variable
jjg@1521 109 case RESOURCE_VARIABLE:
jjg@1521 110 if (pos.lvarOffset == null) {
jjg@1521 111 print(", lvarOffset is Null!");
jjg@1521 112 break;
jjg@1521 113 }
jjg@1521 114 print(", {");
jjg@1521 115 for (int i = 0; i < pos.lvarOffset.length; ++i) {
jjg@1521 116 if (i != 0) print("; ");
jjg@1521 117 if (showOffsets) {
jjg@1521 118 print("start_pc=");
jjg@1521 119 print(pos.lvarOffset[i]);
jjg@1521 120 }
jjg@1521 121 print(", length=");
jjg@1521 122 print(pos.lvarLength[i]);
jjg@1521 123 print(", index=");
jjg@1521 124 print(pos.lvarIndex[i]);
jjg@1521 125 }
jjg@1521 126 print("}");
jjg@1521 127 break;
jjg@1521 128 // exception parameter
jjg@1521 129 case EXCEPTION_PARAMETER:
jjg@1521 130 print(", exception_index=");
jjg@1521 131 print(pos.exception_index);
jjg@1521 132 break;
jjg@1521 133 // method receiver
jjg@1521 134 case METHOD_RECEIVER:
jjg@1521 135 // Do nothing
jjg@1521 136 break;
jjg@1521 137 // type parameter
jjg@1521 138 case CLASS_TYPE_PARAMETER:
jjg@1521 139 case METHOD_TYPE_PARAMETER:
jjg@1521 140 print(", param_index=");
jjg@1521 141 print(pos.parameter_index);
jjg@1521 142 break;
jjg@1521 143 // type parameter bound
jjg@1521 144 case CLASS_TYPE_PARAMETER_BOUND:
jjg@1521 145 case METHOD_TYPE_PARAMETER_BOUND:
jjg@1521 146 print(", param_index=");
jjg@1521 147 print(pos.parameter_index);
jjg@1521 148 print(", bound_index=");
jjg@1521 149 print(pos.bound_index);
jjg@1521 150 break;
jjg@1521 151 // class extends or implements clause
jjg@1521 152 case CLASS_EXTENDS:
jjg@1521 153 print(", type_index=");
jjg@1521 154 print(pos.type_index);
jjg@1521 155 break;
jjg@1521 156 // throws
jjg@1521 157 case THROWS:
jjg@1521 158 print(", type_index=");
jjg@1521 159 print(pos.type_index);
jjg@1521 160 break;
jjg@1521 161 // method parameter
jjg@1521 162 case METHOD_FORMAL_PARAMETER:
jjg@1521 163 print(", param_index=");
jjg@1521 164 print(pos.parameter_index);
jjg@1521 165 break;
jjg@1563 166 // type cast
jjg@1563 167 case CAST:
jjg@1521 168 // method/constructor/reference type argument
jjg@1521 169 case CONSTRUCTOR_INVOCATION_TYPE_ARGUMENT:
jjg@1521 170 case METHOD_INVOCATION_TYPE_ARGUMENT:
jjg@1563 171 case CONSTRUCTOR_REFERENCE_TYPE_ARGUMENT:
jjg@1521 172 case METHOD_REFERENCE_TYPE_ARGUMENT:
jjg@1521 173 if (showOffsets) {
jjg@1521 174 print(", offset=");
jjg@1521 175 print(pos.offset);
jjg@1521 176 }
jjg@1521 177 print(", type_index=");
jjg@1521 178 print(pos.type_index);
jjg@1521 179 break;
jjg@1521 180 // We don't need to worry about these
jjg@1521 181 case METHOD_RETURN:
jjg@1521 182 case FIELD:
jjg@1521 183 break;
jjg@1521 184 case UNKNOWN:
jjg@1521 185 throw new AssertionError("AnnotationWriter: UNKNOWN target type should never occur!");
jjg@1521 186 default:
jjg@1521 187 throw new AssertionError("AnnotationWriter: Unknown target type for position: " + pos);
jjg@1521 188 }
jjg@1521 189
jjg@1521 190 // Append location data for generics/arrays.
jjg@1521 191 if (!pos.location.isEmpty()) {
jjg@1521 192 print(", location=");
jjg@1521 193 print(pos.location);
jjg@1521 194 }
jjg@1521 195 }
jjg@1521 196
jjg@46 197 public void write(Annotation.element_value_pair pair) {
jjg@338 198 write(pair, false);
jjg@338 199 }
jjg@338 200
jjg@338 201 public void write(Annotation.element_value_pair pair, boolean resolveIndices) {
jjg@338 202 writeIndex(pair.element_name_index, resolveIndices);
jjg@338 203 print("=");
jjg@338 204 write(pair.value, resolveIndices);
jjg@46 205 }
jjg@46 206
jjg@46 207 public void write(Annotation.element_value value) {
jjg@338 208 write(value, false);
jjg@338 209 }
jjg@338 210
jjg@338 211 public void write(Annotation.element_value value, boolean resolveIndices) {
jjg@338 212 ev_writer.write(value, resolveIndices);
jjg@338 213 }
jjg@338 214
jjg@338 215 private void writeDescriptor(int index, boolean resolveIndices) {
jjg@338 216 if (resolveIndices) {
jjg@338 217 try {
jjg@338 218 ConstantPool constant_pool = classWriter.getClassFile().constant_pool;
jjg@338 219 Descriptor d = new Descriptor(index);
jjg@338 220 print(d.getFieldType(constant_pool));
jjg@338 221 return;
jjg@338 222 } catch (ConstantPoolException ignore) {
jjg@338 223 } catch (InvalidDescriptor ignore) {
jjg@338 224 }
jjg@338 225 }
jjg@338 226
jjg@338 227 print("#" + index);
jjg@338 228 }
jjg@338 229
jjg@338 230 private void writeIndex(int index, boolean resolveIndices) {
jjg@338 231 if (resolveIndices) {
jjg@338 232 print(constantWriter.stringValue(index));
jjg@338 233 } else
jjg@338 234 print("#" + index);
jjg@46 235 }
jjg@46 236
jjg@46 237 element_value_Writer ev_writer = new element_value_Writer();
jjg@46 238
jjg@338 239 class element_value_Writer implements Annotation.element_value.Visitor<Void,Boolean> {
jjg@338 240 public void write(Annotation.element_value value, boolean resolveIndices) {
jjg@338 241 value.accept(this, resolveIndices);
jjg@46 242 }
jjg@46 243
jjg@338 244 public Void visitPrimitive(Primitive_element_value ev, Boolean resolveIndices) {
jjg@338 245 if (resolveIndices)
jjg@338 246 writeIndex(ev.const_value_index, resolveIndices);
jjg@338 247 else
jjg@338 248 print(((char) ev.tag) + "#" + ev.const_value_index);
jjg@46 249 return null;
jjg@46 250 }
jjg@46 251
jjg@338 252 public Void visitEnum(Enum_element_value ev, Boolean resolveIndices) {
jjg@338 253 if (resolveIndices) {
jjg@338 254 writeIndex(ev.type_name_index, resolveIndices);
jjg@338 255 print(".");
jjg@338 256 writeIndex(ev.const_name_index, resolveIndices);
jjg@338 257 } else
jjg@338 258 print(((char) ev.tag) + "#" + ev.type_name_index + ".#" + ev.const_name_index);
jjg@46 259 return null;
jjg@46 260 }
jjg@46 261
jjg@338 262 public Void visitClass(Class_element_value ev, Boolean resolveIndices) {
jjg@338 263 if (resolveIndices) {
jjg@338 264 writeIndex(ev.class_info_index, resolveIndices);
jjg@338 265 print(".class");
jjg@338 266 } else
jjg@338 267 print(((char) ev.tag) + "#" + ev.class_info_index);
jjg@46 268 return null;
jjg@46 269 }
jjg@46 270
jjg@338 271 public Void visitAnnotation(Annotation_element_value ev, Boolean resolveIndices) {
jjg@46 272 print((char) ev.tag);
jjg@338 273 AnnotationWriter.this.write(ev.annotation_value, resolveIndices);
jjg@46 274 return null;
jjg@46 275 }
jjg@46 276
jjg@338 277 public Void visitArray(Array_element_value ev, Boolean resolveIndices) {
jjg@46 278 print("[");
jjg@46 279 for (int i = 0; i < ev.num_values; i++) {
jjg@46 280 if (i > 0)
jjg@46 281 print(",");
jjg@338 282 write(ev.values[i], resolveIndices);
jjg@46 283 }
jjg@46 284 print("]");
jjg@46 285 return null;
jjg@46 286 }
jjg@46 287
jjg@46 288 }
jjg@338 289
jjg@338 290 private ClassWriter classWriter;
jjg@338 291 private ConstantWriter constantWriter;
jjg@46 292 }

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