1.1 --- a/javap/src/main/java/org/apidesign/javap/ClassData.java Fri Mar 22 16:59:47 2013 +0100
1.2 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000
1.3 @@ -1,713 +0,0 @@
1.4 -/*
1.5 - * Copyright (c) 2002, 2004, 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 -
1.30 -package org.apidesign.javap;
1.31 -
1.32 -import java.io.*;
1.33 -
1.34 -/**
1.35 - * Central data repository of the Java Disassembler.
1.36 - * Stores all the information in java class file.
1.37 - *
1.38 - * @author Sucheta Dambalkar (Adopted code from jdis)
1.39 - */
1.40 -public final class ClassData implements RuntimeConstants {
1.41 -
1.42 - private int magic;
1.43 - private int minor_version;
1.44 - private int major_version;
1.45 - private int cpool_count;
1.46 - private Object cpool[];
1.47 - private int access;
1.48 - private int this_class = 0;;
1.49 - private int super_class;
1.50 - private int interfaces_count;
1.51 - private int[] interfaces = new int[0];;
1.52 - private int fields_count;
1.53 - private FieldData[] fields;
1.54 - private int methods_count;
1.55 - private MethodData[] methods;
1.56 - private InnerClassData[] innerClasses;
1.57 - private int attributes_count;
1.58 - private AttrData[] attrs;
1.59 - private String classname;
1.60 - private String superclassname;
1.61 - private int source_cpx=0;
1.62 - private byte tags[];
1.63 - private Hashtable indexHashAscii = new Hashtable();
1.64 - private String pkgPrefix="";
1.65 - private int pkgPrefixLen=0;
1.66 -
1.67 - /**
1.68 - * Read classfile to disassemble.
1.69 - */
1.70 - public ClassData(InputStream infile) throws IOException {
1.71 - this.read(new DataInputStream(infile));
1.72 - }
1.73 -
1.74 - /**
1.75 - * Reads and stores class file information.
1.76 - */
1.77 - public void read(DataInputStream in) throws IOException {
1.78 - // Read the header
1.79 - magic = in.readInt();
1.80 - if (magic != JAVA_MAGIC) {
1.81 - throw new ClassFormatError("wrong magic: " +
1.82 - toHex(magic) + ", expected " +
1.83 - toHex(JAVA_MAGIC));
1.84 - }
1.85 - minor_version = in.readShort();
1.86 - major_version = in.readShort();
1.87 - if (major_version != JAVA_VERSION) {
1.88 - }
1.89 -
1.90 - // Read the constant pool
1.91 - readCP(in);
1.92 - access = in.readUnsignedShort();
1.93 - this_class = in.readUnsignedShort();
1.94 - super_class = in.readUnsignedShort();
1.95 -
1.96 - //Read interfaces.
1.97 - interfaces_count = in.readUnsignedShort();
1.98 - if(interfaces_count > 0){
1.99 - interfaces = new int[interfaces_count];
1.100 - }
1.101 - for (int i = 0; i < interfaces_count; i++) {
1.102 - interfaces[i]=in.readShort();
1.103 - }
1.104 -
1.105 - // Read the fields
1.106 - readFields(in);
1.107 -
1.108 - // Read the methods
1.109 - readMethods(in);
1.110 -
1.111 - // Read the attributes
1.112 - attributes_count = in.readUnsignedShort();
1.113 - attrs=new AttrData[attributes_count];
1.114 - for (int k = 0; k < attributes_count; k++) {
1.115 - int name_cpx=in.readUnsignedShort();
1.116 - if (getTag(name_cpx)==CONSTANT_UTF8
1.117 - && getString(name_cpx).equals("SourceFile")
1.118 - ){ if (in.readInt()!=2)
1.119 - throw new ClassFormatError("invalid attr length");
1.120 - source_cpx=in.readUnsignedShort();
1.121 - AttrData attr=new AttrData(this);
1.122 - attr.read(name_cpx);
1.123 - attrs[k]=attr;
1.124 -
1.125 - } else if (getTag(name_cpx)==CONSTANT_UTF8
1.126 - && getString(name_cpx).equals("InnerClasses")
1.127 - ){ int length=in.readInt();
1.128 - int num=in.readUnsignedShort();
1.129 - if (2+num*8 != length)
1.130 - throw new ClassFormatError("invalid attr length");
1.131 - innerClasses=new InnerClassData[num];
1.132 - for (int j = 0; j < num; j++) {
1.133 - InnerClassData innerClass=new InnerClassData(this);
1.134 - innerClass.read(in);
1.135 - innerClasses[j]=innerClass;
1.136 - }
1.137 - AttrData attr=new AttrData(this);
1.138 - attr.read(name_cpx);
1.139 - attrs[k]=attr;
1.140 - } else {
1.141 - AttrData attr=new AttrData(this);
1.142 - attr.read(name_cpx, in);
1.143 - attrs[k]=attr;
1.144 - }
1.145 - }
1.146 - in.close();
1.147 - } // end ClassData.read()
1.148 -
1.149 - /**
1.150 - * Reads and stores constant pool info.
1.151 - */
1.152 - void readCP(DataInputStream in) throws IOException {
1.153 - cpool_count = in.readUnsignedShort();
1.154 - tags = new byte[cpool_count];
1.155 - cpool = new Object[cpool_count];
1.156 - for (int i = 1; i < cpool_count; i++) {
1.157 - byte tag = in.readByte();
1.158 -
1.159 - switch(tags[i] = tag) {
1.160 - case CONSTANT_UTF8:
1.161 - String str=in.readUTF();
1.162 - indexHashAscii.put(cpool[i] = str, new Integer(i));
1.163 - break;
1.164 - case CONSTANT_INTEGER:
1.165 - cpool[i] = new Integer(in.readInt());
1.166 - break;
1.167 - case CONSTANT_FLOAT:
1.168 - cpool[i] = new Float(in.readFloat());
1.169 - break;
1.170 - case CONSTANT_LONG:
1.171 - cpool[i++] = new Long(in.readLong());
1.172 - break;
1.173 - case CONSTANT_DOUBLE:
1.174 - cpool[i++] = new Double(in.readDouble());
1.175 - break;
1.176 - case CONSTANT_CLASS:
1.177 - case CONSTANT_STRING:
1.178 - cpool[i] = new CPX(in.readUnsignedShort());
1.179 - break;
1.180 -
1.181 - case CONSTANT_FIELD:
1.182 - case CONSTANT_METHOD:
1.183 - case CONSTANT_INTERFACEMETHOD:
1.184 - case CONSTANT_NAMEANDTYPE:
1.185 - cpool[i] = new CPX2(in.readUnsignedShort(), in.readUnsignedShort());
1.186 - break;
1.187 -
1.188 - case 0:
1.189 - default:
1.190 - throw new ClassFormatError("invalid constant type: " + (int)tags[i]);
1.191 - }
1.192 - }
1.193 - }
1.194 -
1.195 - /**
1.196 - * Reads and strores field info.
1.197 - */
1.198 - protected void readFields(DataInputStream in) throws IOException {
1.199 - int fields_count = in.readUnsignedShort();
1.200 - fields=new FieldData[fields_count];
1.201 - for (int k = 0; k < fields_count; k++) {
1.202 - FieldData field=new FieldData(this);
1.203 - field.read(in);
1.204 - fields[k]=field;
1.205 - }
1.206 - }
1.207 -
1.208 - /**
1.209 - * Reads and strores Method info.
1.210 - */
1.211 - protected void readMethods(DataInputStream in) throws IOException {
1.212 - int methods_count = in.readUnsignedShort();
1.213 - methods=new MethodData[methods_count];
1.214 - for (int k = 0; k < methods_count ; k++) {
1.215 - MethodData method=new MethodData(this);
1.216 - method.read(in);
1.217 - methods[k]=method;
1.218 - }
1.219 - }
1.220 -
1.221 - /**
1.222 - * get a string
1.223 - */
1.224 - public String getString(int n) {
1.225 - if (n == 0) {
1.226 - return null;
1.227 - } else {
1.228 - return (String)cpool[n];
1.229 - }
1.230 - }
1.231 -
1.232 - /**
1.233 - * get the type of constant given an index
1.234 - */
1.235 - public byte getTag(int n) {
1.236 - try{
1.237 - return tags[n];
1.238 - } catch (ArrayIndexOutOfBoundsException e) {
1.239 - return (byte)100;
1.240 - }
1.241 - }
1.242 -
1.243 - static final String hexString="0123456789ABCDEF";
1.244 -
1.245 - public static char hexTable[]=hexString.toCharArray();
1.246 -
1.247 - static String toHex(long val, int width) {
1.248 - StringBuffer s = new StringBuffer();
1.249 - for (int i=width-1; i>=0; i--)
1.250 - s.append(hexTable[((int)(val>>(4*i)))&0xF]);
1.251 - return "0x"+s.toString();
1.252 - }
1.253 -
1.254 - static String toHex(long val) {
1.255 - int width;
1.256 - for (width=16; width>0; width--) {
1.257 - if ((val>>(width-1)*4)!=0) break;
1.258 - }
1.259 - return toHex(val, width);
1.260 - }
1.261 -
1.262 - static String toHex(int val) {
1.263 - int width;
1.264 - for (width=8; width>0; width--) {
1.265 - if ((val>>(width-1)*4)!=0) break;
1.266 - }
1.267 - return toHex(val, width);
1.268 - }
1.269 -
1.270 - /**
1.271 - * Returns the name of this class.
1.272 - */
1.273 - public String getClassName() {
1.274 - String res=null;
1.275 - if (this_class==0) {
1.276 - return res;
1.277 - }
1.278 - int tcpx;
1.279 - try {
1.280 - if (tags[this_class]!=CONSTANT_CLASS) {
1.281 - return res; //"<CP["+cpx+"] is not a Class> ";
1.282 - }
1.283 - tcpx=((CPX)cpool[this_class]).cpx;
1.284 - } catch (ArrayIndexOutOfBoundsException e) {
1.285 - return res; // "#"+cpx+"// invalid constant pool index";
1.286 - } catch (Throwable e) {
1.287 - return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
1.288 - }
1.289 -
1.290 - try {
1.291 - return (String)(cpool[tcpx]);
1.292 - } catch (ArrayIndexOutOfBoundsException e) {
1.293 - return res; // "class #"+scpx+"// invalid constant pool index";
1.294 - } catch (ClassCastException e) {
1.295 - return res; // "class #"+scpx+"// invalid constant pool reference";
1.296 - } catch (Throwable e) {
1.297 - return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
1.298 - }
1.299 -
1.300 - }
1.301 -
1.302 - /**
1.303 - * Returns the name of class at perticular index.
1.304 - */
1.305 - public String getClassName(int cpx) {
1.306 - String res="#"+cpx;
1.307 - if (cpx==0) {
1.308 - return res;
1.309 - }
1.310 - int scpx;
1.311 - try {
1.312 - if (tags[cpx]!=CONSTANT_CLASS) {
1.313 - return res; //"<CP["+cpx+"] is not a Class> ";
1.314 - }
1.315 - scpx=((CPX)cpool[cpx]).cpx;
1.316 - } catch (ArrayIndexOutOfBoundsException e) {
1.317 - return res; // "#"+cpx+"// invalid constant pool index";
1.318 - } catch (Throwable e) {
1.319 - return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
1.320 - }
1.321 - res="#"+scpx;
1.322 - try {
1.323 - return (String)(cpool[scpx]);
1.324 - } catch (ArrayIndexOutOfBoundsException e) {
1.325 - return res; // "class #"+scpx+"// invalid constant pool index";
1.326 - } catch (ClassCastException e) {
1.327 - return res; // "class #"+scpx+"// invalid constant pool reference";
1.328 - } catch (Throwable e) {
1.329 - return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
1.330 - }
1.331 - }
1.332 -
1.333 - public int getAccessFlags() {
1.334 - return access;
1.335 - }
1.336 -
1.337 - /**
1.338 - * Returns true if it is a class
1.339 - */
1.340 - public boolean isClass() {
1.341 - if((access & ACC_INTERFACE) == 0) return true;
1.342 - return false;
1.343 - }
1.344 -
1.345 - /**
1.346 - * Returns true if it is a interface.
1.347 - */
1.348 - public boolean isInterface(){
1.349 - if((access & ACC_INTERFACE) != 0) return true;
1.350 - return false;
1.351 - }
1.352 -
1.353 - /**
1.354 - * Returns true if this member is public, false otherwise.
1.355 - */
1.356 - public boolean isPublic(){
1.357 - return (access & ACC_PUBLIC) != 0;
1.358 - }
1.359 -
1.360 - /**
1.361 - * Returns the access of this class or interface.
1.362 - */
1.363 - public String[] getAccess(){
1.364 - Vector v = new Vector();
1.365 - if ((access & ACC_PUBLIC) !=0) v.addElement("public");
1.366 - if ((access & ACC_FINAL) !=0) v.addElement("final");
1.367 - if ((access & ACC_ABSTRACT) !=0) v.addElement("abstract");
1.368 - String[] accflags = new String[v.size()];
1.369 - v.copyInto(accflags);
1.370 - return accflags;
1.371 - }
1.372 -
1.373 - /**
1.374 - * Returns list of innerclasses.
1.375 - */
1.376 - public InnerClassData[] getInnerClasses(){
1.377 - return innerClasses;
1.378 - }
1.379 -
1.380 - /**
1.381 - * Returns list of attributes.
1.382 - */
1.383 - final AttrData[] getAttributes(){
1.384 - return attrs;
1.385 - }
1.386 -
1.387 - public byte[] findAnnotationData(boolean classRetention) {
1.388 - String n = classRetention ?
1.389 - "RuntimeInvisibleAnnotations" : // NOI18N
1.390 - "RuntimeVisibleAnnotations"; // NOI18N
1.391 - return findAttr(n, attrs);
1.392 - }
1.393 -
1.394 - /**
1.395 - * Returns true if superbit is set.
1.396 - */
1.397 - public boolean isSuperSet(){
1.398 - if ((access & ACC_SUPER) !=0) return true;
1.399 - return false;
1.400 - }
1.401 -
1.402 - /**
1.403 - * Returns super class name.
1.404 - */
1.405 - public String getSuperClassName(){
1.406 - String res=null;
1.407 - if (super_class==0) {
1.408 - return res;
1.409 - }
1.410 - int scpx;
1.411 - try {
1.412 - if (tags[super_class]!=CONSTANT_CLASS) {
1.413 - return res; //"<CP["+cpx+"] is not a Class> ";
1.414 - }
1.415 - scpx=((CPX)cpool[super_class]).cpx;
1.416 - } catch (ArrayIndexOutOfBoundsException e) {
1.417 - return res; // "#"+cpx+"// invalid constant pool index";
1.418 - } catch (Throwable e) {
1.419 - return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
1.420 - }
1.421 -
1.422 - try {
1.423 - return (String)(cpool[scpx]);
1.424 - } catch (ArrayIndexOutOfBoundsException e) {
1.425 - return res; // "class #"+scpx+"// invalid constant pool index";
1.426 - } catch (ClassCastException e) {
1.427 - return res; // "class #"+scpx+"// invalid constant pool reference";
1.428 - } catch (Throwable e) {
1.429 - return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
1.430 - }
1.431 - }
1.432 -
1.433 - /**
1.434 - * Returns list of super interfaces.
1.435 - */
1.436 - public String[] getSuperInterfaces(){
1.437 - String interfacenames[] = new String[interfaces.length];
1.438 - int interfacecpx = -1;
1.439 - for(int i = 0; i < interfaces.length; i++){
1.440 - interfacecpx=((CPX)cpool[interfaces[i]]).cpx;
1.441 - interfacenames[i] = (String)(cpool[interfacecpx]);
1.442 - }
1.443 - return interfacenames;
1.444 - }
1.445 -
1.446 - /**
1.447 - * Returns string at prticular constant pool index.
1.448 - */
1.449 - public String getStringValue(int cpoolx) {
1.450 - try {
1.451 - return ((String)cpool[cpoolx]);
1.452 - } catch (ArrayIndexOutOfBoundsException e) {
1.453 - return "//invalid constant pool index:"+cpoolx;
1.454 - } catch (ClassCastException e) {
1.455 - return "//invalid constant pool ref:"+cpoolx;
1.456 - }
1.457 - }
1.458 -
1.459 - /**
1.460 - * Returns list of field info.
1.461 - */
1.462 - public FieldData[] getFields(){
1.463 - return fields;
1.464 - }
1.465 -
1.466 - /**
1.467 - * Returns list of method info.
1.468 - */
1.469 - public MethodData[] getMethods(){
1.470 - return methods;
1.471 - }
1.472 -
1.473 - /**
1.474 - * Returns constant pool entry at that index.
1.475 - */
1.476 - public CPX2 getCpoolEntry(int cpx){
1.477 - return ((CPX2)(cpool[cpx]));
1.478 - }
1.479 -
1.480 - public Object getCpoolEntryobj(int cpx){
1.481 - return (cpool[cpx]);
1.482 - }
1.483 -
1.484 - /**
1.485 - * Returns index of this class.
1.486 - */
1.487 - public int getthis_cpx(){
1.488 - return this_class;
1.489 - }
1.490 -
1.491 - /**
1.492 - * Returns string at that index.
1.493 - */
1.494 - public String StringValue(int cpx) {
1.495 - return stringValue(cpx, false);
1.496 - }
1.497 - public String stringValue(int cpx, boolean textual) {
1.498 - return stringValue(cpx, textual, null);
1.499 - }
1.500 - public String stringValue(int cpx, String[] classRefs) {
1.501 - return stringValue(cpx, true, classRefs);
1.502 - }
1.503 - private String stringValue(int cpx, boolean textual, String[] refs) {
1.504 - if (cpx==0) return "#0";
1.505 - int tag;
1.506 - Object x;
1.507 - String suffix="";
1.508 - try {
1.509 - tag=tags[cpx];
1.510 - x=cpool[cpx];
1.511 - } catch (IndexOutOfBoundsException e) {
1.512 - return "<Incorrect CP index:"+cpx+">";
1.513 - }
1.514 -
1.515 - if (x==null) return "<NULL>";
1.516 - switch (tag) {
1.517 - case CONSTANT_UTF8: {
1.518 - if (!textual) {
1.519 - return (String)x;
1.520 - }
1.521 - StringBuilder sb=new StringBuilder();
1.522 - String s=(String)x;
1.523 - for (int k=0; k<s.length(); k++) {
1.524 - char c=s.charAt(k);
1.525 - switch (c) {
1.526 - case '\\': sb.append('\\').append('\\'); break;
1.527 - case '\t': sb.append('\\').append('t'); break;
1.528 - case '\n': sb.append('\\').append('n'); break;
1.529 - case '\r': sb.append('\\').append('r'); break;
1.530 - case '\"': sb.append('\\').append('\"'); break;
1.531 - default: sb.append(c);
1.532 - }
1.533 - }
1.534 - return sb.toString();
1.535 - }
1.536 - case CONSTANT_DOUBLE: {
1.537 - Double d=(Double)x;
1.538 - String sd=d.toString();
1.539 - if (textual) {
1.540 - return sd;
1.541 - }
1.542 - return sd+"d";
1.543 - }
1.544 - case CONSTANT_FLOAT: {
1.545 - Float f=(Float)x;
1.546 - String sf=(f).toString();
1.547 - if (textual) {
1.548 - return sf;
1.549 - }
1.550 - return sf+"f";
1.551 - }
1.552 - case CONSTANT_LONG: {
1.553 - Long ln = (Long)x;
1.554 - if (textual) {
1.555 - return ln.toString();
1.556 - }
1.557 - return ln.toString()+'l';
1.558 - }
1.559 - case CONSTANT_INTEGER: {
1.560 - Integer in = (Integer)x;
1.561 - return in.toString();
1.562 - }
1.563 - case CONSTANT_CLASS:
1.564 - String jn = getClassName(cpx);
1.565 - if (textual) {
1.566 - if (refs != null) {
1.567 - refs[0] = jn;
1.568 - }
1.569 - return jn;
1.570 - }
1.571 - return javaName(jn);
1.572 - case CONSTANT_STRING:
1.573 - String sv = stringValue(((CPX)x).cpx, textual);
1.574 - if (textual) {
1.575 - return '"' + sv + '"';
1.576 - } else {
1.577 - return sv;
1.578 - }
1.579 - case CONSTANT_FIELD:
1.580 - case CONSTANT_METHOD:
1.581 - case CONSTANT_INTERFACEMETHOD:
1.582 - //return getShortClassName(((CPX2)x).cpx1)+"."+StringValue(((CPX2)x).cpx2);
1.583 - return javaName(getClassName(((CPX2)x).cpx1))+"."+StringValue(((CPX2)x).cpx2);
1.584 -
1.585 - case CONSTANT_NAMEANDTYPE:
1.586 - return getName(((CPX2)x).cpx1)+":"+StringValue(((CPX2)x).cpx2);
1.587 - default:
1.588 - return "UnknownTag"; //TBD
1.589 - }
1.590 - }
1.591 -
1.592 - /**
1.593 - * Returns resolved java type name.
1.594 - */
1.595 - public String javaName(String name) {
1.596 - if( name==null) return "null";
1.597 - int len=name.length();
1.598 - if (len==0) return "\"\"";
1.599 - int cc='/';
1.600 - fullname: { // xxx/yyy/zzz
1.601 - int cp;
1.602 - for (int k=0; k<len; k += Character.charCount(cp)) {
1.603 - cp=name.codePointAt(k);
1.604 - if (cc=='/') {
1.605 - if (!isJavaIdentifierStart(cp)) break fullname;
1.606 - } else if (cp!='/') {
1.607 - if (!isJavaIdentifierPart(cp)) break fullname;
1.608 - }
1.609 - cc=cp;
1.610 - }
1.611 - return name;
1.612 - }
1.613 - return "\""+name+"\"";
1.614 - }
1.615 -
1.616 - public String getName(int cpx) {
1.617 - String res;
1.618 - try {
1.619 - return javaName((String)cpool[cpx]); //.replace('/','.');
1.620 - } catch (ArrayIndexOutOfBoundsException e) {
1.621 - return "<invalid constant pool index:"+cpx+">";
1.622 - } catch (ClassCastException e) {
1.623 - return "<invalid constant pool ref:"+cpx+">";
1.624 - }
1.625 - }
1.626 -
1.627 - /**
1.628 - * Returns unqualified class name.
1.629 - */
1.630 - public String getShortClassName(int cpx) {
1.631 - String classname=javaName(getClassName(cpx));
1.632 - pkgPrefixLen=classname.lastIndexOf("/")+1;
1.633 - if (pkgPrefixLen!=0) {
1.634 - pkgPrefix=classname.substring(0,pkgPrefixLen);
1.635 - if (classname.startsWith(pkgPrefix)) {
1.636 - return classname.substring(pkgPrefixLen);
1.637 - }
1.638 - }
1.639 - return classname;
1.640 - }
1.641 -
1.642 - /**
1.643 - * Returns source file name.
1.644 - */
1.645 - public String getSourceName(){
1.646 - return getName(source_cpx);
1.647 - }
1.648 -
1.649 - /**
1.650 - * Returns package name.
1.651 - */
1.652 - public String getPkgName(){
1.653 - String classname=getClassName(this_class);
1.654 - pkgPrefixLen=classname.lastIndexOf("/")+1;
1.655 - if (pkgPrefixLen!=0) {
1.656 - pkgPrefix=classname.substring(0,pkgPrefixLen);
1.657 - return("package "+pkgPrefix.substring(0,pkgPrefixLen-1)+";\n");
1.658 - }else return null;
1.659 - }
1.660 -
1.661 - /**
1.662 - * Returns total constant pool entry count.
1.663 - */
1.664 - public int getCpoolCount(){
1.665 - return cpool_count;
1.666 - }
1.667 -
1.668 - /**
1.669 - * Returns minor version of class file.
1.670 - */
1.671 - public int getMinor_version(){
1.672 - return minor_version;
1.673 - }
1.674 -
1.675 - /**
1.676 - * Returns major version of class file.
1.677 - */
1.678 - public int getMajor_version(){
1.679 - return major_version;
1.680 - }
1.681 -
1.682 - private boolean isJavaIdentifierStart(int cp) {
1.683 - return ('a' <= cp && cp <= 'z') || ('A' <= cp && cp <= 'Z');
1.684 - }
1.685 -
1.686 - private boolean isJavaIdentifierPart(int cp) {
1.687 - return isJavaIdentifierStart(cp) || ('0' <= cp && cp <= '9');
1.688 - }
1.689 -
1.690 - public String[] getNameAndType(int indx) {
1.691 - return getNameAndType(indx, 0, new String[2]);
1.692 - }
1.693 -
1.694 - private String[] getNameAndType(int indx, int at, String[] arr) {
1.695 - CPX2 c2 = getCpoolEntry(indx);
1.696 - arr[at] = StringValue(c2.cpx1);
1.697 - arr[at + 1] = StringValue(c2.cpx2);
1.698 - return arr;
1.699 - }
1.700 -
1.701 - public String[] getFieldInfoName(int indx) {
1.702 - CPX2 c2 = getCpoolEntry(indx);
1.703 - String[] arr = new String[3];
1.704 - arr[0] = getClassName(c2.cpx1);
1.705 - return getNameAndType(c2.cpx2, 1, arr);
1.706 - }
1.707 -
1.708 - static byte[] findAttr(String n, AttrData[] attrs) {
1.709 - for (AttrData ad : attrs) {
1.710 - if (n.equals(ad.getAttrName())) {
1.711 - return ad.getData();
1.712 - }
1.713 - }
1.714 - return null;
1.715 - }
1.716 -}