class.h

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/*
 *      HT Editor
 *      class.h
 *
 *      Copyright (C) 2001 Stanley Gambarin <stanleyg76@yahoo.com>
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License version 2 as
 *      published by the Free Software Foundation.
 *
 *      This program is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *      GNU General Public License for more details.
 *
 *      You should have received a copy of the GNU General Public License
 *      along with this program; if not, write to the Free Software
 *      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#ifndef _CLASS_H
#define _CLASS_H

#include "htformat.h"
#include "stddata.h"

typedef unsigned char  u1;
typedef unsigned int   u2;
typedef unsigned long  u4;

/* flags */
static const u2 jACC_PUBLIC                 = 0x0001;
static const u2 jACC_PRIVATE                = 0x0002;
static const u2 jACC_PROTECTED              = 0x0004;
static const u2 jACC_STATIC                 = 0x0008;
static const u2 jACC_FINAL                  = 0x0010;
static const u2 jACC_SUPER                  = 0x0020;
static const u2 jACC_SYNCHRONIZED           = 0x0020;
static const u2 jACC_VOLATILE               = 0x0040;
static const u2 jACC_TRANSIENT              = 0x0080;
static const u2 jACC_NATIVE                 = 0x0100;
static const u2 jACC_INTERFACE              = 0x0200;
static const u2 jACC_ABSTRACT               = 0x0400;
static const u2 jACC_STRICT                 = 0x0800;
static const u2 jACC_JNM                    = 0x4000;

/* constant pool tags */
static const u1 CONSTANT_Utf8               =  1;
static const u1 CONSTANT_Integer            =  3;
static const u1 CONSTANT_Float              =  4;
static const u1 CONSTANT_Long               =  5;
static const u1 CONSTANT_Double             =  6;
static const u1 CONSTANT_Class              =  7;
static const u1 CONSTANT_String             =  8;
static const u1 CONSTANT_Fieldref           =  9;
static const u1 CONSTANT_Methodref          = 10;
static const u1 CONSTANT_InterfaceMethodref = 11;
static const u1 CONSTANT_NameAndType        = 12;

typedef struct _cp_info {
  u4 offset;
  u1 tag;
  union {
    char   *string;
    double dval;
    float  fval;
    long   lval;
    int    ival;
    long   llval[2];
  } value;
} cp_info;

static const u2 ATTRIB_ConstantValue      =  1;
static const u2 ATTRIB_Code               =  2;
static const u2 ATTRIB_Exceptions         =  3;
static const u2 ATTRIB_InnerClasses       =  4;
static const u2 ATTRIB_Synthetic          =  5;
static const u2 ATTRIB_SourceFile         =  6;
static const u2 ATTRIB_LineNumberTable    =  7;
static const u2 ATTRIB_LocalVariableTable =  8;
static const u2 ATTRIB_Deprecated         =  9;

typedef struct _attrib_info {
        u4 offset;
        u2 tag;
        u2 name;
        u4 len;
        union {
                struct {
                        u2 max_stack;
                        u2 max_locals;
                        u4 len;
                        u4 start;
                } code;
        };
} attrib_info;

/* mf_info */
typedef struct _mf_info {
  u4 offset;
  u2 flags;
  char *name;
  char *desc;
  u2 attribs_count;
  attrib_info **attribs;
} mf_info;

/* classfile */
typedef struct _classfile {
  u4 offset;
  u4 magic;
  u2 minor_version;
  u2 major_version;
  u2 cpool_count;
  cp_info **cpool;
  u4 coffset;
  u2 access_flags;
  u2 this_class;
  u2 super_class;
  u2 interfaces_count;
  u2 *interfaces;
  u4 foffset;
  u2 fields_count;
  mf_info **fields;
  u4 moffset;
  u2 methods_count;
  mf_info **methods;
  u4 aoffset;
  u2 attribs_count;
  attrib_info **attribs;
} classfile;

struct ht_class_shared_data {
        ht_stree        *methods;
        classfile       *file;
        Area *valid;
        Area *initialized;
        int flags;
        struct {
                char *thisclass;
                char *superclass;
                ht_list *interfaces;
        } classinfo;
};

extern ht_class_shared_data *class_read(ht_streamfile *);
extern void class_unread(ht_class_shared_data *);
extern attrib_info *attribute_read(ht_stream *, classfile *);

int token_translate(char *buf, int maxlen, dword token, ht_class_shared_data *shared);
void java_demangle(char *result, char *classname, char *name, char *type, int flags);
char *java_demangle_flags(char *result, int flags);

class cview : public ht_format_group {
public:
  void init(bounds *, ht_streamfile *, format_viewer_if **,
                  ht_format_group *, FILEOFS, void *shared);
  virtual void done();
};

#define ClassAddress dword

class ClassMethod: public Object {
public:
        char *name;
        char *type;
        ClassAddress start;
        UINT length;
        int flags;
                                ClassMethod(char *name, char *type, ClassAddress start, UINT length, int flags);
        virtual         ~ClassMethod();
        virtual int     compareTo(const Object *obj) const;
};


#define DESC_JAVA                       "java - class file"
#define DESC_JAVA_HEADERS       "java/headers"
#define DESC_JAVA_IMAGE         "java/image"

extern format_viewer_if htcls_if;

#endif /* _CLASS_H */

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