jtulach@144: /*
jtulach@144:  * Copyright (c) 2002, 2004, Oracle and/or its affiliates. All rights reserved.
jtulach@144:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jtulach@144:  *
jtulach@144:  * This code is free software; you can redistribute it and/or modify it
jtulach@144:  * under the terms of the GNU General Public License version 2 only, as
jtulach@144:  * published by the Free Software Foundation.  Oracle designates this
jtulach@144:  * particular file as subject to the "Classpath" exception as provided
jtulach@144:  * by Oracle in the LICENSE file that accompanied this code.
jtulach@144:  *
jtulach@144:  * This code is distributed in the hope that it will be useful, but WITHOUT
jtulach@144:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jtulach@144:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jtulach@144:  * version 2 for more details (a copy is included in the LICENSE file that
jtulach@144:  * accompanied this code).
jtulach@144:  *
jtulach@144:  * You should have received a copy of the GNU General Public License version
jtulach@144:  * 2 along with this work; if not, write to the Free Software Foundation,
jtulach@144:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jtulach@144:  *
jtulach@144:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
jtulach@144:  * or visit www.oracle.com if you need additional information or have any
jtulach@144:  * questions.
jtulach@144:  */
jtulach@144: 
jtulach@144: 
jtulach@167: package org.apidesign.javap;
jtulach@144: 
jtulach@144: import java.io.*;
jtulach@144: 
jtulach@144: /**
jtulach@144:  * Central data repository of the Java Disassembler.
jtulach@144:  * Stores all the information in java class file.
jtulach@144:  *
jtulach@144:  * @author  Sucheta Dambalkar (Adopted code from jdis)
jtulach@144:  */
jaroslav@151: public final class ClassData implements RuntimeConstants {
jtulach@144: 
jtulach@144:     private int magic;
jtulach@144:     private int minor_version;
jtulach@144:     private int major_version;
jtulach@144:     private int cpool_count;
jtulach@144:     private Object cpool[];
jtulach@144:     private int access;
jtulach@144:     private int this_class = 0;;
jtulach@144:     private int super_class;
jtulach@144:     private int interfaces_count;
jtulach@144:     private int[] interfaces = new int[0];;
jtulach@144:     private int fields_count;
jtulach@144:     private FieldData[] fields;
jtulach@144:     private int methods_count;
jtulach@144:     private MethodData[] methods;
jtulach@144:     private InnerClassData[] innerClasses;
jtulach@144:     private int attributes_count;
jtulach@144:     private AttrData[] attrs;
jtulach@144:     private String classname;
jtulach@144:     private String superclassname;
jtulach@144:     private int source_cpx=0;
jtulach@144:     private byte tags[];
jtulach@144:     private Hashtable indexHashAscii = new Hashtable();
jtulach@144:     private String pkgPrefix="";
jtulach@144:     private int pkgPrefixLen=0;
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Read classfile to disassemble.
jtulach@144:      */
jaroslav@149:     public ClassData(InputStream infile) throws IOException {
jaroslav@149:         this.read(new DataInputStream(infile));
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Reads and stores class file information.
jtulach@144:      */
jtulach@144:     public void read(DataInputStream in) throws IOException {
jtulach@144:         // Read the header
jtulach@144:         magic = in.readInt();
jtulach@144:         if (magic != JAVA_MAGIC) {
jtulach@144:             throw new ClassFormatError("wrong magic: " +
jtulach@144:                                        toHex(magic) + ", expected " +
jtulach@144:                                        toHex(JAVA_MAGIC));
jtulach@144:         }
jtulach@144:         minor_version = in.readShort();
jtulach@144:         major_version = in.readShort();
jtulach@144:         if (major_version != JAVA_VERSION) {
jtulach@144:         }
jtulach@144: 
jtulach@144:         // Read the constant pool
jtulach@144:         readCP(in);
jtulach@144:         access = in.readUnsignedShort();
jtulach@144:         this_class = in.readUnsignedShort();
jtulach@144:         super_class = in.readUnsignedShort();
jtulach@144: 
jtulach@144:         //Read interfaces.
jtulach@144:         interfaces_count = in.readUnsignedShort();
jtulach@144:         if(interfaces_count > 0){
jtulach@144:             interfaces = new int[interfaces_count];
jtulach@144:         }
jtulach@144:         for (int i = 0; i < interfaces_count; i++) {
jtulach@144:             interfaces[i]=in.readShort();
jtulach@144:         }
jtulach@144: 
jtulach@144:         // Read the fields
jtulach@144:         readFields(in);
jtulach@144: 
jtulach@144:         // Read the methods
jtulach@144:         readMethods(in);
jtulach@144: 
jtulach@144:         // Read the attributes
jtulach@144:         attributes_count = in.readUnsignedShort();
jtulach@144:         attrs=new AttrData[attributes_count];
jtulach@144:         for (int k = 0; k < attributes_count; k++) {
jtulach@144:             int name_cpx=in.readUnsignedShort();
jtulach@144:             if (getTag(name_cpx)==CONSTANT_UTF8
jtulach@144:                 && getString(name_cpx).equals("SourceFile")
jtulach@144:                 ){      if (in.readInt()!=2)
jtulach@144:                     throw new ClassFormatError("invalid attr length");
jtulach@144:                 source_cpx=in.readUnsignedShort();
jtulach@144:                 AttrData attr=new AttrData(this);
jtulach@144:                 attr.read(name_cpx);
jtulach@144:                 attrs[k]=attr;
jtulach@144: 
jtulach@144:             } else if (getTag(name_cpx)==CONSTANT_UTF8
jtulach@144:                        && getString(name_cpx).equals("InnerClasses")
jtulach@144:                        ){       int length=in.readInt();
jtulach@144:                        int num=in.readUnsignedShort();
jtulach@144:                        if (2+num*8 != length)
jtulach@144:                            throw new ClassFormatError("invalid attr length");
jtulach@144:                        innerClasses=new InnerClassData[num];
jtulach@144:                        for (int j = 0; j < num; j++) {
jtulach@144:                            InnerClassData innerClass=new InnerClassData(this);
jtulach@144:                            innerClass.read(in);
jtulach@144:                            innerClasses[j]=innerClass;
jtulach@144:                        }
jtulach@144:                        AttrData attr=new AttrData(this);
jtulach@144:                        attr.read(name_cpx);
jtulach@144:                        attrs[k]=attr;
jtulach@144:             } else {
jtulach@144:                 AttrData attr=new AttrData(this);
jtulach@144:                 attr.read(name_cpx, in);
jtulach@144:                 attrs[k]=attr;
jtulach@144:             }
jtulach@144:         }
jtulach@144:         in.close();
jtulach@144:     } // end ClassData.read()
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Reads and stores constant pool info.
jtulach@144:      */
jtulach@144:     void readCP(DataInputStream in) throws IOException {
jtulach@144:         cpool_count = in.readUnsignedShort();
jtulach@144:         tags = new byte[cpool_count];
jtulach@144:         cpool = new Object[cpool_count];
jtulach@144:         for (int i = 1; i < cpool_count; i++) {
jtulach@144:             byte tag = in.readByte();
jtulach@144: 
jtulach@144:             switch(tags[i] = tag) {
jtulach@144:             case CONSTANT_UTF8:
jtulach@144:                 String str=in.readUTF();
jtulach@144:                 indexHashAscii.put(cpool[i] = str, new Integer(i));
jtulach@144:                 break;
jtulach@144:             case CONSTANT_INTEGER:
jtulach@144:                 cpool[i] = new Integer(in.readInt());
jtulach@144:                 break;
jtulach@144:             case CONSTANT_FLOAT:
jtulach@144:                 cpool[i] = new Float(in.readFloat());
jtulach@144:                 break;
jtulach@144:             case CONSTANT_LONG:
jtulach@144:                 cpool[i++] = new Long(in.readLong());
jtulach@144:                 break;
jtulach@144:             case CONSTANT_DOUBLE:
jtulach@144:                 cpool[i++] = new Double(in.readDouble());
jtulach@144:                 break;
jtulach@144:             case CONSTANT_CLASS:
jtulach@144:             case CONSTANT_STRING:
jtulach@144:                 cpool[i] = new CPX(in.readUnsignedShort());
jtulach@144:                 break;
jtulach@144: 
jtulach@144:             case CONSTANT_FIELD:
jtulach@144:             case CONSTANT_METHOD:
jtulach@144:             case CONSTANT_INTERFACEMETHOD:
jtulach@144:             case CONSTANT_NAMEANDTYPE:
jtulach@144:                 cpool[i] = new CPX2(in.readUnsignedShort(), in.readUnsignedShort());
jtulach@144:                 break;
jtulach@144: 
jtulach@144:             case 0:
jtulach@144:             default:
jtulach@144:                 throw new ClassFormatError("invalid constant type: " + (int)tags[i]);
jtulach@144:             }
jtulach@144:         }
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Reads and strores field info.
jtulach@144:      */
jtulach@144:     protected void readFields(DataInputStream in) throws IOException {
jtulach@144:         int fields_count = in.readUnsignedShort();
jtulach@144:         fields=new FieldData[fields_count];
jtulach@144:         for (int k = 0; k < fields_count; k++) {
jtulach@144:             FieldData field=new FieldData(this);
jtulach@144:             field.read(in);
jtulach@144:             fields[k]=field;
jtulach@144:         }
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Reads and strores Method info.
jtulach@144:      */
jtulach@144:     protected void readMethods(DataInputStream in) throws IOException {
jtulach@144:         int methods_count = in.readUnsignedShort();
jtulach@144:         methods=new MethodData[methods_count];
jtulach@144:         for (int k = 0; k < methods_count ; k++) {
jtulach@144:             MethodData method=new MethodData(this);
jtulach@144:             method.read(in);
jtulach@144:             methods[k]=method;
jtulach@144:         }
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * get a string
jtulach@144:      */
jtulach@144:     public String getString(int n) {
jaroslav@151:         if (n == 0) {
jaroslav@151:             return null; 
jaroslav@151:         } else {
jaroslav@151:             return (String)cpool[n];
jaroslav@151:         }
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * get the type of constant given an index
jtulach@144:      */
jtulach@144:     public byte getTag(int n) {
jtulach@144:         try{
jtulach@144:             return tags[n];
jtulach@144:         } catch (ArrayIndexOutOfBoundsException e) {
jtulach@144:             return (byte)100;
jtulach@144:         }
jtulach@144:     }
jtulach@144: 
jtulach@144:     static final String hexString="0123456789ABCDEF";
jtulach@144: 
jtulach@144:     public static char hexTable[]=hexString.toCharArray();
jtulach@144: 
jtulach@144:     static String toHex(long val, int width) {
jtulach@144:         StringBuffer s = new StringBuffer();
jtulach@144:         for (int i=width-1; i>=0; i--)
jtulach@144:             s.append(hexTable[((int)(val>>(4*i)))&0xF]);
jtulach@144:         return "0x"+s.toString();
jtulach@144:     }
jtulach@144: 
jtulach@144:     static String toHex(long val) {
jtulach@144:         int width;
jtulach@144:         for (width=16; width>0; width--) {
jtulach@144:             if ((val>>(width-1)*4)!=0) break;
jtulach@144:         }
jtulach@144:         return toHex(val, width);
jtulach@144:     }
jtulach@144: 
jtulach@144:     static String toHex(int val) {
jtulach@144:         int width;
jtulach@144:         for (width=8; width>0; width--) {
jtulach@144:             if ((val>>(width-1)*4)!=0) break;
jtulach@144:         }
jtulach@144:         return toHex(val, width);
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns the name of this class.
jtulach@144:      */
jtulach@144:     public String getClassName() {
jtulach@144:         String res=null;
jtulach@144:         if (this_class==0) {
jtulach@144:             return res;
jtulach@144:         }
jtulach@144:         int tcpx;
jtulach@144:         try {
jtulach@144:             if (tags[this_class]!=CONSTANT_CLASS) {
jtulach@144:                 return res; //"<CP["+cpx+"] is not a Class> ";
jtulach@144:             }
jtulach@144:             tcpx=((CPX)cpool[this_class]).cpx;
jtulach@144:         } catch (ArrayIndexOutOfBoundsException e) {
jtulach@144:             return res; // "#"+cpx+"// invalid constant pool index";
jtulach@144:         } catch (Throwable e) {
jtulach@144:             return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
jtulach@144:         }
jtulach@144: 
jtulach@144:         try {
jtulach@144:             return (String)(cpool[tcpx]);
jtulach@144:         } catch (ArrayIndexOutOfBoundsException e) {
jtulach@144:             return  res; // "class #"+scpx+"// invalid constant pool index";
jtulach@144:         } catch (ClassCastException e) {
jtulach@144:             return  res; // "class #"+scpx+"// invalid constant pool reference";
jtulach@144:         } catch (Throwable e) {
jtulach@144:             return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
jtulach@144:         }
jtulach@144: 
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns the name of class at perticular index.
jtulach@144:      */
jtulach@144:     public String getClassName(int cpx) {
jtulach@144:         String res="#"+cpx;
jtulach@144:         if (cpx==0) {
jtulach@144:             return res;
jtulach@144:         }
jtulach@144:         int scpx;
jtulach@144:         try {
jtulach@144:             if (tags[cpx]!=CONSTANT_CLASS) {
jtulach@144:                 return res; //"<CP["+cpx+"] is not a Class> ";
jtulach@144:             }
jtulach@144:             scpx=((CPX)cpool[cpx]).cpx;
jtulach@144:         } catch (ArrayIndexOutOfBoundsException e) {
jtulach@144:             return res; // "#"+cpx+"// invalid constant pool index";
jtulach@144:         } catch (Throwable e) {
jtulach@144:             return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
jtulach@144:         }
jtulach@144:         res="#"+scpx;
jtulach@144:         try {
jtulach@144:             return (String)(cpool[scpx]);
jtulach@144:         } catch (ArrayIndexOutOfBoundsException e) {
jtulach@144:             return  res; // "class #"+scpx+"// invalid constant pool index";
jtulach@144:         } catch (ClassCastException e) {
jtulach@144:             return  res; // "class #"+scpx+"// invalid constant pool reference";
jtulach@144:         } catch (Throwable e) {
jtulach@144:             return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
jtulach@144:         }
jtulach@144:     }
jaroslav@355:     
jaroslav@355:     public int getAccessFlags() {
jaroslav@355:         return access;
jaroslav@355:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns true if it is a class
jtulach@144:      */
jtulach@144:     public boolean isClass() {
jtulach@144:         if((access & ACC_INTERFACE) == 0) return true;
jtulach@144:         return false;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns true if it is a interface.
jtulach@144:      */
jtulach@144:     public boolean isInterface(){
jtulach@144:         if((access & ACC_INTERFACE) != 0) return true;
jtulach@144:         return false;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns true if this member is public, false otherwise.
jtulach@144:      */
jtulach@144:     public boolean isPublic(){
jtulach@144:         return (access & ACC_PUBLIC) != 0;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns the access of this class or interface.
jtulach@144:      */
jtulach@144:     public String[] getAccess(){
jtulach@144:         Vector v = new Vector();
jtulach@144:         if ((access & ACC_PUBLIC)   !=0) v.addElement("public");
jtulach@144:         if ((access & ACC_FINAL)    !=0) v.addElement("final");
jtulach@144:         if ((access & ACC_ABSTRACT) !=0) v.addElement("abstract");
jtulach@144:         String[] accflags = new String[v.size()];
jtulach@144:         v.copyInto(accflags);
jtulach@144:         return accflags;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns list of innerclasses.
jtulach@144:      */
jtulach@144:     public InnerClassData[] getInnerClasses(){
jtulach@144:         return innerClasses;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns list of attributes.
jtulach@144:      */
jaroslav@152:     final AttrData[] getAttributes(){
jtulach@144:         return attrs;
jtulach@144:     }
jaroslav@152:     
jaroslav@152:     public byte[] findAnnotationData(boolean classRetention) {
jaroslav@152:         String n = classRetention ?
jaroslav@152:             "RuntimeInvisibleAnnotations" : // NOI18N
jaroslav@152:             "RuntimeVisibleAnnotations"; // NOI18N
jaroslav@152:         return findAttr(n, attrs);
jaroslav@152:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns true if superbit is set.
jtulach@144:      */
jtulach@144:     public boolean isSuperSet(){
jtulach@144:         if ((access & ACC_SUPER)   !=0) return true;
jtulach@144:         return false;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns super class name.
jtulach@144:      */
jtulach@144:     public String getSuperClassName(){
jtulach@144:         String res=null;
jtulach@144:         if (super_class==0) {
jtulach@144:             return res;
jtulach@144:         }
jtulach@144:         int scpx;
jtulach@144:         try {
jtulach@144:             if (tags[super_class]!=CONSTANT_CLASS) {
jtulach@144:                 return res; //"<CP["+cpx+"] is not a Class> ";
jtulach@144:             }
jtulach@144:             scpx=((CPX)cpool[super_class]).cpx;
jtulach@144:         } catch (ArrayIndexOutOfBoundsException e) {
jtulach@144:             return res; // "#"+cpx+"// invalid constant pool index";
jtulach@144:         } catch (Throwable e) {
jtulach@144:             return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
jtulach@144:         }
jtulach@144: 
jtulach@144:         try {
jtulach@144:             return (String)(cpool[scpx]);
jtulach@144:         } catch (ArrayIndexOutOfBoundsException e) {
jtulach@144:             return  res; // "class #"+scpx+"// invalid constant pool index";
jtulach@144:         } catch (ClassCastException e) {
jtulach@144:             return  res; // "class #"+scpx+"// invalid constant pool reference";
jtulach@144:         } catch (Throwable e) {
jtulach@144:             return res; // "#"+cpx+"// ERROR IN DISASSEMBLER";
jtulach@144:         }
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns list of super interfaces.
jtulach@144:      */
jtulach@144:     public String[] getSuperInterfaces(){
jtulach@144:         String interfacenames[] = new String[interfaces.length];
jtulach@144:         int interfacecpx = -1;
jtulach@144:         for(int i = 0; i < interfaces.length; i++){
jtulach@144:             interfacecpx=((CPX)cpool[interfaces[i]]).cpx;
jtulach@144:             interfacenames[i] = (String)(cpool[interfacecpx]);
jtulach@144:         }
jtulach@144:         return interfacenames;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns string at prticular constant pool index.
jtulach@144:      */
jtulach@144:     public String getStringValue(int cpoolx) {
jtulach@144:         try {
jtulach@144:             return ((String)cpool[cpoolx]);
jtulach@144:         } catch (ArrayIndexOutOfBoundsException e) {
jtulach@144:             return "//invalid constant pool index:"+cpoolx;
jtulach@144:         } catch (ClassCastException e) {
jtulach@144:             return "//invalid constant pool ref:"+cpoolx;
jtulach@144:         }
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns list of field info.
jtulach@144:      */
jtulach@144:     public  FieldData[] getFields(){
jtulach@144:         return fields;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns list of method info.
jtulach@144:      */
jtulach@144:     public  MethodData[] getMethods(){
jtulach@144:         return methods;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns constant pool entry at that index.
jtulach@144:      */
jtulach@144:     public CPX2 getCpoolEntry(int cpx){
jtulach@144:         return ((CPX2)(cpool[cpx]));
jtulach@144:     }
jtulach@144: 
jtulach@144:     public Object getCpoolEntryobj(int cpx){
jtulach@144:         return (cpool[cpx]);
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns index of this class.
jtulach@144:      */
jtulach@144:     public int getthis_cpx(){
jtulach@144:         return this_class;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns string at that index.
jtulach@144:      */
jtulach@144:     public String StringValue(int cpx) {
jaroslav@151:         return stringValue(cpx, false);
jaroslav@151:     }
jaroslav@151:     public String stringValue(int cpx, boolean textual) {
jaroslav@230:         return stringValue(cpx, textual, null);
jaroslav@230:     }
jaroslav@230:     public String stringValue(int cpx, String[] classRefs) {
jaroslav@230:         return stringValue(cpx, true, classRefs);
jaroslav@230:     }
jaroslav@230:     private String stringValue(int cpx, boolean textual, String[] refs) {
jtulach@144:         if (cpx==0) return "#0";
jtulach@144:         int tag;
jtulach@144:         Object x;
jtulach@144:         String suffix="";
jtulach@144:         try {
jtulach@144:             tag=tags[cpx];
jtulach@144:             x=cpool[cpx];
jtulach@144:         } catch (IndexOutOfBoundsException e) {
jtulach@144:             return "<Incorrect CP index:"+cpx+">";
jtulach@144:         }
jtulach@144: 
jtulach@144:         if (x==null) return "<NULL>";
jtulach@144:         switch (tag) {
jtulach@144:         case CONSTANT_UTF8: {
jtulach@161:             if (!textual) {
jtulach@161:                 return (String)x;
jtulach@161:             }
jtulach@157:             StringBuilder sb=new StringBuilder();
jtulach@144:             String s=(String)x;
jtulach@144:             for (int k=0; k<s.length(); k++) {
jtulach@144:                 char c=s.charAt(k);
jtulach@144:                 switch (c) {
jtulach@157:                 case '\\': sb.append('\\').append('\\'); break;
jtulach@144:                 case '\t': sb.append('\\').append('t'); break;
jtulach@144:                 case '\n': sb.append('\\').append('n'); break;
jtulach@144:                 case '\r': sb.append('\\').append('r'); break;
jtulach@144:                 case '\"': sb.append('\\').append('\"'); break;
jtulach@144:                 default: sb.append(c);
jtulach@144:                 }
jtulach@144:             }
jtulach@144:             return sb.toString();
jtulach@144:         }
jtulach@144:         case CONSTANT_DOUBLE: {
jtulach@144:             Double d=(Double)x;
jtulach@144:             String sd=d.toString();
jaroslav@151:             if (textual) {
jaroslav@151:                 return sd;
jaroslav@151:             }
jtulach@144:             return sd+"d";
jtulach@144:         }
jtulach@144:         case CONSTANT_FLOAT: {
jtulach@144:             Float f=(Float)x;
jtulach@144:             String sf=(f).toString();
jaroslav@151:             if (textual) {
jaroslav@151:                 return sf;
jaroslav@151:             }
jtulach@144:             return sf+"f";
jtulach@144:         }
jtulach@144:         case CONSTANT_LONG: {
jtulach@144:             Long ln = (Long)x;
jaroslav@151:             if (textual) {
jaroslav@151:                 return ln.toString();
jaroslav@151:             }
jtulach@144:             return ln.toString()+'l';
jtulach@144:         }
jtulach@144:         case CONSTANT_INTEGER: {
jtulach@144:             Integer in = (Integer)x;
jtulach@144:             return in.toString();
jtulach@144:         }
jtulach@144:         case CONSTANT_CLASS:
jaroslav@303:             String jn = getClassName(cpx);
jaroslav@151:             if (textual) {
jaroslav@230:                 if (refs != null) {
jaroslav@230:                     refs[0] = jn;
jaroslav@230:                 }
jaroslav@274:                 return jn;
jaroslav@151:             }
jaroslav@303:             return javaName(jn);
jtulach@144:         case CONSTANT_STRING:
jtulach@161:             String sv = stringValue(((CPX)x).cpx, textual);
jaroslav@151:             if (textual) {
jaroslav@151:                 return '"' + sv + '"';
jaroslav@151:             } else {
jaroslav@151:                 return sv;
jaroslav@151:             }
jtulach@144:         case CONSTANT_FIELD:
jtulach@144:         case CONSTANT_METHOD:
jtulach@144:         case CONSTANT_INTERFACEMETHOD:
jtulach@144:             //return getShortClassName(((CPX2)x).cpx1)+"."+StringValue(((CPX2)x).cpx2);
jtulach@144:              return javaName(getClassName(((CPX2)x).cpx1))+"."+StringValue(((CPX2)x).cpx2);
jtulach@144: 
jtulach@144:         case CONSTANT_NAMEANDTYPE:
jtulach@144:             return getName(((CPX2)x).cpx1)+":"+StringValue(((CPX2)x).cpx2);
jtulach@144:         default:
jtulach@144:             return "UnknownTag"; //TBD
jtulach@144:         }
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns resolved java type name.
jtulach@144:      */
jtulach@144:     public String javaName(String name) {
jtulach@144:         if( name==null) return "null";
jtulach@144:         int len=name.length();
jtulach@144:         if (len==0) return "\"\"";
jtulach@144:         int cc='/';
jtulach@144:     fullname: { // xxx/yyy/zzz
jtulach@144:             int cp;
jtulach@144:             for (int k=0; k<len; k += Character.charCount(cp)) {
jtulach@144:                 cp=name.codePointAt(k);
jtulach@144:                 if (cc=='/') {
jaroslav@149:                     if (!isJavaIdentifierStart(cp)) break fullname;
jtulach@144:                 } else if (cp!='/') {
jaroslav@149:                     if (!isJavaIdentifierPart(cp)) break fullname;
jtulach@144:                 }
jtulach@144:                 cc=cp;
jtulach@144:             }
jtulach@144:             return name;
jtulach@144:         }
jtulach@144:         return "\""+name+"\"";
jtulach@144:     }
jtulach@144: 
jtulach@144:     public String getName(int cpx) {
jtulach@144:         String res;
jtulach@144:         try {
jtulach@144:             return javaName((String)cpool[cpx]); //.replace('/','.');
jtulach@144:         } catch (ArrayIndexOutOfBoundsException e) {
jtulach@144:             return "<invalid constant pool index:"+cpx+">";
jtulach@144:         } catch (ClassCastException e) {
jtulach@144:             return "<invalid constant pool ref:"+cpx+">";
jtulach@144:         }
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns unqualified class name.
jtulach@144:      */
jtulach@144:     public String getShortClassName(int cpx) {
jtulach@144:         String classname=javaName(getClassName(cpx));
jtulach@144:         pkgPrefixLen=classname.lastIndexOf("/")+1;
jtulach@144:         if (pkgPrefixLen!=0) {
jtulach@144:             pkgPrefix=classname.substring(0,pkgPrefixLen);
jtulach@144:             if (classname.startsWith(pkgPrefix)) {
jtulach@144:                 return classname.substring(pkgPrefixLen);
jtulach@144:             }
jtulach@144:         }
jtulach@144:         return classname;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns source file name.
jtulach@144:      */
jtulach@144:     public String getSourceName(){
jtulach@144:         return getName(source_cpx);
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns package name.
jtulach@144:      */
jtulach@144:     public String getPkgName(){
jtulach@144:         String classname=getClassName(this_class);
jtulach@144:         pkgPrefixLen=classname.lastIndexOf("/")+1;
jtulach@144:         if (pkgPrefixLen!=0) {
jtulach@144:             pkgPrefix=classname.substring(0,pkgPrefixLen);
jtulach@144:             return("package  "+pkgPrefix.substring(0,pkgPrefixLen-1)+";\n");
jtulach@144:         }else return null;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns total constant pool entry count.
jtulach@144:      */
jtulach@144:     public int getCpoolCount(){
jtulach@144:         return cpool_count;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns minor version of class file.
jtulach@144:      */
jtulach@144:     public int getMinor_version(){
jtulach@144:         return minor_version;
jtulach@144:     }
jtulach@144: 
jtulach@144:     /**
jtulach@144:      * Returns major version of class file.
jtulach@144:      */
jtulach@144:     public int getMajor_version(){
jtulach@144:         return major_version;
jtulach@144:     }
jaroslav@149: 
jaroslav@149:     private boolean isJavaIdentifierStart(int cp) {
jaroslav@149:         return ('a' <= cp && cp <= 'z') || ('A' <= cp && cp <= 'Z');
jaroslav@149:     }
jaroslav@149: 
jaroslav@149:     private boolean isJavaIdentifierPart(int cp) {
jaroslav@149:         return isJavaIdentifierStart(cp) || ('0' <= cp && cp <= '9');
jaroslav@149:     }
jaroslav@151: 
jaroslav@151:     public String[] getNameAndType(int indx) {
jaroslav@151:         return getNameAndType(indx, 0, new String[2]);
jaroslav@151:     }
jaroslav@151:     
jaroslav@151:     private String[] getNameAndType(int indx, int at, String[] arr) {
jaroslav@151:         CPX2 c2 = getCpoolEntry(indx);
jaroslav@151:         arr[at] = StringValue(c2.cpx1);
jaroslav@151:         arr[at + 1] = StringValue(c2.cpx2);
jaroslav@151:         return arr;
jaroslav@151:     }
jaroslav@151: 
jaroslav@151:     public String[] getFieldInfoName(int indx) {
jaroslav@151:         CPX2 c2 = getCpoolEntry(indx);
jaroslav@151:         String[] arr = new String[3];
jaroslav@151:         arr[0] = getClassName(c2.cpx1);
jaroslav@151:         return getNameAndType(c2.cpx2, 1, arr);
jaroslav@151:     }
jaroslav@152: 
jaroslav@152:     static byte[] findAttr(String n, AttrData[] attrs) {
jaroslav@152:         for (AttrData ad : attrs) {
jaroslav@152:             if (n.equals(ad.getAttrName())) {
jaroslav@152:                 return ad.getData();
jaroslav@152:             }
jaroslav@152:         }
jaroslav@152:         return null;
jaroslav@152:     }
jtulach@144: }