1.1 --- a/javap/src/main/java/org/apidesign/javap/MethodData.java Tue Feb 26 14:55:55 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,394 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 2002, 2005, Oracle and/or its affiliates. All rights reserved.
1.6 - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1.7 - *
1.8 - * This code is free software; you can redistribute it and/or modify it
1.9 - * under the terms of the GNU General Public License version 2 only, as
1.10 - * published by the Free Software Foundation. Oracle designates this
1.11 - * particular file as subject to the "Classpath" exception as provided
1.12 - * by Oracle in the LICENSE file that accompanied this code.
1.13 - *
1.14 - * This code is distributed in the hope that it will be useful, but WITHOUT
1.15 - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1.16 - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1.17 - * version 2 for more details (a copy is included in the LICENSE file that
1.18 - * accompanied this code).
1.19 - *
1.20 - * You should have received a copy of the GNU General Public License version
1.21 - * 2 along with this work; if not, write to the Free Software Foundation,
1.22 - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1.23 - *
1.24 - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1.25 - * or visit www.oracle.com if you need additional information or have any
1.26 - * questions.
1.27 - */
1.28 -
1.29 -package org.apidesign.javap;
1.30 -
1.31 -
1.32 -import java.io.DataInputStream;
1.33 -import java.io.IOException;
1.34 -import static org.apidesign.javap.RuntimeConstants.*;
1.35 -
1.36 -/**
1.37 - * Strores method data informastion.
1.38 - *
1.39 - * @author Sucheta Dambalkar (Adopted code from jdis)
1.40 - */
1.41 -public class MethodData {
1.42 -
1.43 - ClassData cls;
1.44 - int access;
1.45 - int name_index;
1.46 - int descriptor_index;
1.47 - int attributes_count;
1.48 - byte[] code;
1.49 - Vector exception_table = new Vector(0);
1.50 - Vector lin_num_tb = new Vector(0);
1.51 - Vector loc_var_tb = new Vector(0);
1.52 - StackMapTableData[] stackMapTable;
1.53 - StackMapData[] stackMap;
1.54 - int[] exc_index_table=null;
1.55 - Vector attrs=new Vector(0);
1.56 - Vector code_attrs=new Vector(0);
1.57 - int max_stack, max_locals;
1.58 - boolean isSynthetic=false;
1.59 - boolean isDeprecated=false;
1.60 -
1.61 - public MethodData(ClassData cls){
1.62 - this.cls=cls;
1.63 - }
1.64 -
1.65 - /**
1.66 - * Read method info.
1.67 - */
1.68 - public void read(DataInputStream in) throws IOException {
1.69 - access = in.readUnsignedShort();
1.70 - name_index=in.readUnsignedShort();
1.71 - descriptor_index =in.readUnsignedShort();
1.72 - int attributes_count = in.readUnsignedShort();
1.73 - for (int i = 0; i < attributes_count; i++) {
1.74 - int attr_name_index=in.readUnsignedShort();
1.75 -
1.76 - readAttr: {
1.77 - if (cls.getTag(attr_name_index)==CONSTANT_UTF8) {
1.78 - String attr_name=cls.getString(attr_name_index);
1.79 - if ( attr_name.equals("Code")){
1.80 - readCode (in);
1.81 - AttrData attr=new AttrData(cls);
1.82 - attr.read(attr_name_index);
1.83 - attrs.addElement(attr);
1.84 - break readAttr;
1.85 - } else if ( attr_name.equals("Exceptions")){
1.86 - readExceptions(in);
1.87 - AttrData attr=new AttrData(cls);
1.88 - attr.read(attr_name_index);
1.89 - attrs.addElement(attr);
1.90 - break readAttr;
1.91 - } else if (attr_name.equals("Synthetic")){
1.92 - if (in.readInt()!=0)
1.93 - throw new ClassFormatError("invalid Synthetic attr length");
1.94 - isSynthetic=true;
1.95 - AttrData attr=new AttrData(cls);
1.96 - attr.read(attr_name_index);
1.97 - attrs.addElement(attr);
1.98 - break readAttr;
1.99 - } else if (attr_name.equals("Deprecated")){
1.100 - if (in.readInt()!=0)
1.101 - throw new ClassFormatError("invalid Synthetic attr length");
1.102 - isDeprecated = true;
1.103 - AttrData attr=new AttrData(cls);
1.104 - attr.read(attr_name_index);
1.105 - attrs.addElement(attr);
1.106 - break readAttr;
1.107 - }
1.108 - }
1.109 - AttrData attr=new AttrData(cls);
1.110 - attr.read(attr_name_index, in);
1.111 - attrs.addElement(attr);
1.112 - }
1.113 - }
1.114 - }
1.115 -
1.116 - /**
1.117 - * Read code attribute info.
1.118 - */
1.119 - public void readCode(DataInputStream in) throws IOException {
1.120 -
1.121 - int attr_length = in.readInt();
1.122 - max_stack=in.readUnsignedShort();
1.123 - max_locals=in.readUnsignedShort();
1.124 - int codelen=in.readInt();
1.125 -
1.126 - code=new byte[codelen];
1.127 - int totalread = 0;
1.128 - while(totalread < codelen){
1.129 - totalread += in.read(code, totalread, codelen-totalread);
1.130 - }
1.131 - // in.read(code, 0, codelen);
1.132 - int clen = 0;
1.133 - readExceptionTable(in);
1.134 - int code_attributes_count = in.readUnsignedShort();
1.135 -
1.136 - for (int k = 0 ; k < code_attributes_count ; k++) {
1.137 - int table_name_index=in.readUnsignedShort();
1.138 - int table_name_tag=cls.getTag(table_name_index);
1.139 - AttrData attr=new AttrData(cls);
1.140 - if (table_name_tag==CONSTANT_UTF8) {
1.141 - String table_name_tstr=cls.getString(table_name_index);
1.142 - if (table_name_tstr.equals("LineNumberTable")) {
1.143 - readLineNumTable(in);
1.144 - attr.read(table_name_index);
1.145 - } else if (table_name_tstr.equals("LocalVariableTable")) {
1.146 - readLocVarTable(in);
1.147 - attr.read(table_name_index);
1.148 - } else if (table_name_tstr.equals("StackMapTable")) {
1.149 - readStackMapTable(in);
1.150 - attr.read(table_name_index);
1.151 - } else if (table_name_tstr.equals("StackMap")) {
1.152 - readStackMap(in);
1.153 - attr.read(table_name_index);
1.154 - } else {
1.155 - attr.read(table_name_index, in);
1.156 - }
1.157 - code_attrs.addElement(attr);
1.158 - continue;
1.159 - }
1.160 -
1.161 - attr.read(table_name_index, in);
1.162 - code_attrs.addElement(attr);
1.163 - }
1.164 - }
1.165 -
1.166 - /**
1.167 - * Read exception table info.
1.168 - */
1.169 - void readExceptionTable (DataInputStream in) throws IOException {
1.170 - int exception_table_len=in.readUnsignedShort();
1.171 - exception_table=new Vector(exception_table_len);
1.172 - for (int l = 0; l < exception_table_len; l++) {
1.173 - exception_table.addElement(new TrapData(in, l));
1.174 - }
1.175 - }
1.176 -
1.177 - /**
1.178 - * Read LineNumberTable attribute info.
1.179 - */
1.180 - void readLineNumTable (DataInputStream in) throws IOException {
1.181 - int attr_len = in.readInt(); // attr_length
1.182 - int lin_num_tb_len = in.readUnsignedShort();
1.183 - lin_num_tb=new Vector(lin_num_tb_len);
1.184 - for (int l = 0; l < lin_num_tb_len; l++) {
1.185 - lin_num_tb.addElement(new LineNumData(in));
1.186 - }
1.187 - }
1.188 -
1.189 - /**
1.190 - * Read LocalVariableTable attribute info.
1.191 - */
1.192 - void readLocVarTable (DataInputStream in) throws IOException {
1.193 - int attr_len=in.readInt(); // attr_length
1.194 - int loc_var_tb_len = in.readUnsignedShort();
1.195 - loc_var_tb = new Vector(loc_var_tb_len);
1.196 - for (int l = 0; l < loc_var_tb_len; l++) {
1.197 - loc_var_tb.addElement(new LocVarData(in));
1.198 - }
1.199 - }
1.200 -
1.201 - /**
1.202 - * Read Exception attribute info.
1.203 - */
1.204 - public void readExceptions(DataInputStream in) throws IOException {
1.205 - int attr_len=in.readInt(); // attr_length in prog
1.206 - int num_exceptions = in.readUnsignedShort();
1.207 - exc_index_table=new int[num_exceptions];
1.208 - for (int l = 0; l < num_exceptions; l++) {
1.209 - int exc=in.readShort();
1.210 - exc_index_table[l]=exc;
1.211 - }
1.212 - }
1.213 -
1.214 - /**
1.215 - * Read StackMapTable attribute info.
1.216 - */
1.217 - void readStackMapTable(DataInputStream in) throws IOException {
1.218 - int attr_len = in.readInt(); //attr_length
1.219 - int stack_map_tb_len = in.readUnsignedShort();
1.220 - stackMapTable = new StackMapTableData[stack_map_tb_len];
1.221 - for (int i=0; i<stack_map_tb_len; i++) {
1.222 - stackMapTable[i] = StackMapTableData.getInstance(in, this);
1.223 - }
1.224 - }
1.225 -
1.226 - /**
1.227 - * Read StackMap attribute info.
1.228 - */
1.229 - void readStackMap(DataInputStream in) throws IOException {
1.230 - int attr_len = in.readInt(); //attr_length
1.231 - int stack_map_len = in.readUnsignedShort();
1.232 - stackMap = new StackMapData[stack_map_len];
1.233 - for (int i = 0; i<stack_map_len; i++) {
1.234 - stackMap[i] = new StackMapData(in, this);
1.235 - }
1.236 - }
1.237 -
1.238 - /**
1.239 - * Return access of the method.
1.240 - */
1.241 - public int getAccess(){
1.242 - return access;
1.243 - }
1.244 -
1.245 - /**
1.246 - * Return name of the method.
1.247 - */
1.248 - public String getName(){
1.249 - return cls.getStringValue(name_index);
1.250 - }
1.251 -
1.252 - /**
1.253 - * Return internal siganature of the method.
1.254 - */
1.255 - public String getInternalSig(){
1.256 - return cls.getStringValue(descriptor_index);
1.257 - }
1.258 -
1.259 - /**
1.260 - * Return code attribute data of a method.
1.261 - */
1.262 - public byte[] getCode(){
1.263 - return code;
1.264 - }
1.265 -
1.266 - /**
1.267 - * Return LineNumberTable size.
1.268 - */
1.269 - public int getnumlines(){
1.270 - return lin_num_tb.size();
1.271 - }
1.272 -
1.273 - /**
1.274 - * Return LineNumberTable
1.275 - */
1.276 - public Vector getlin_num_tb(){
1.277 - return lin_num_tb;
1.278 - }
1.279 -
1.280 - /**
1.281 - * Return LocalVariableTable size.
1.282 - */
1.283 - public int getloc_var_tbsize(){
1.284 - return loc_var_tb.size();
1.285 - }
1.286 -
1.287 -
1.288 - /**
1.289 - * Return LocalVariableTable.
1.290 - */
1.291 - public Vector getloc_var_tb(){
1.292 - return loc_var_tb;
1.293 - }
1.294 -
1.295 - /**
1.296 - * Return StackMap.
1.297 - */
1.298 - public StackMapData[] getStackMap() {
1.299 - return stackMap;
1.300 - }
1.301 -
1.302 - /**
1.303 - * Return StackMapTable.
1.304 - */
1.305 - public StackMapTableData[] getStackMapTable() {
1.306 - return stackMapTable;
1.307 - }
1.308 -
1.309 - public StackMapIterator createStackMapIterator() {
1.310 - return new StackMapIterator(this);
1.311 - }
1.312 -
1.313 - /**
1.314 - * Return true if method is static
1.315 - */
1.316 - public boolean isStatic(){
1.317 - if ((access & ACC_STATIC) !=0) return true;
1.318 - return false;
1.319 - }
1.320 -
1.321 -
1.322 - /**
1.323 - * Return max depth of operand stack.
1.324 - */
1.325 - public int getMaxStack(){
1.326 - return max_stack;
1.327 - }
1.328 -
1.329 -
1.330 - /**
1.331 - * Return number of local variables.
1.332 - */
1.333 - public int getMaxLocals(){
1.334 - return max_locals;
1.335 - }
1.336 -
1.337 -
1.338 - /**
1.339 - * Return exception index table in Exception attribute.
1.340 - */
1.341 - public int []get_exc_index_table(){
1.342 - return exc_index_table;
1.343 - }
1.344 -
1.345 -
1.346 - /**
1.347 - * Return exception table in code attributre.
1.348 - */
1.349 - public TrapDataIterator getTrapDataIterator(){
1.350 - return new TrapDataIterator(exception_table);
1.351 - }
1.352 -
1.353 -
1.354 - /**
1.355 - * Return method attributes.
1.356 - */
1.357 - public Vector getAttributes(){
1.358 - return attrs;
1.359 - }
1.360 -
1.361 -
1.362 - /**
1.363 - * Return code attributes.
1.364 - */
1.365 - public Vector getCodeAttributes(){
1.366 - return code_attrs;
1.367 - }
1.368 -
1.369 -
1.370 - /**
1.371 - * Return true if method id synthetic.
1.372 - */
1.373 - public boolean isSynthetic(){
1.374 - return isSynthetic;
1.375 - }
1.376 -
1.377 -
1.378 - /**
1.379 - * Return true if method is deprecated.
1.380 - */
1.381 - public boolean isDeprecated(){
1.382 - return isDeprecated;
1.383 - }
1.384 -
1.385 - public byte[] findAnnotationData(boolean classRetention) {
1.386 - String n = classRetention ?
1.387 - "RuntimeInvisibleAnnotations" : // NOI18N
1.388 - "RuntimeVisibleAnnotations"; // NOI18N
1.389 - AttrData[] arr = new AttrData[attrs.size()];
1.390 - attrs.copyInto(arr);
1.391 - return ClassData.findAttr(n, arr);
1.392 - }
1.393 -
1.394 - public boolean isConstructor() {
1.395 - return "<init>".equals(getName());
1.396 - }
1.397 -}