/*

  * Copyright (c) 2002, 2005, Oracle and/or its affiliates. All rights reserved.

  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

  *

  * This code is free software; you can redistribute it and/or modify it

  * under the terms of the GNU General Public License version 2 only, as

  * published by the Free Software Foundation.  Oracle designates this

  * particular file as subject to the "Classpath" exception as provided

  * by Oracle in the LICENSE file that accompanied this code.

  *

  * This code 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

  * version 2 for more details (a copy is included in the LICENSE file that

  * accompanied this code).

  *

  * You should have received a copy of the GNU General Public License version

  * 2 along with this work; if not, write to the Free Software Foundation,

  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

  *

  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

  * or visit www.oracle.com if you need additional information or have any

  * questions.

  */

 package sun.tools.javap;

 import java.io.IOException;

 import java.io.InputStream;

 import java.util.Hashtable;

 import java.util.Vector;

 public class Tables implements Constants {

     /**

      * Define mnemocodes table.

      */

   static  Hashtable mnemocodes = new Hashtable(301, 0.5f);

   static  String opcExtNamesTab[]=new String[128];

   static  String opcPrivExtNamesTab[]=new String[128];

   static  void defineNonPriv(int opc, String mnem) {

         mnemocodes.put(opcExtNamesTab[opc]=mnem, new Integer(opc_nonpriv*256+opc));

   }

   static  void definePriv(int opc, String mnem) {

         mnemocodes.put(opcPrivExtNamesTab[opc]="priv_"+mnem, new Integer(opc_priv*256+opc));

   }

   static  void defineExt(int opc, String mnem) {

         defineNonPriv(opc, mnem);

         definePriv(opc, mnem);

   }

   static { int k;

         for (k=0; k<opc_wide; k++) {

                 mnemocodes.put(opcNamesTab[k], new Integer(k));

         }

         for (k=opc_wide+1; k<opcNamesTab.length; k++) {

                 mnemocodes.put(opcNamesTab[k], new Integer(k));

         }

         mnemocodes.put("invokenonvirtual", new Integer(opc_invokespecial));

         mnemocodes.put("iload_w", new Integer(opc_iload_w));

         mnemocodes.put("lload_w", new Integer(opc_lload_w));

         mnemocodes.put("fload_w", new Integer(opc_fload_w));

         mnemocodes.put("dload_w", new Integer(opc_dload_w));

         mnemocodes.put("aload_w", new Integer(opc_aload_w));

         mnemocodes.put("istore_w", new Integer(opc_istore_w));

         mnemocodes.put("lstore_w", new Integer(opc_lstore_w));

         mnemocodes.put("fstore_w", new Integer(opc_fstore_w));

         mnemocodes.put("dstore_w", new Integer(opc_dstore_w));

         mnemocodes.put("astore_w", new Integer(opc_astore_w));

         mnemocodes.put("ret_w", new Integer(opc_ret_w));

         mnemocodes.put("iinc_w", new Integer(opc_iinc_w));

         mnemocodes.put("nonpriv", new Integer(opc_nonpriv));

         mnemocodes.put("priv", new Integer(opc_priv));

         defineExt(0, "load_ubyte");

         defineExt(1, "load_byte");

         defineExt(2, "load_char");

         defineExt(3, "load_short");

         defineExt(4, "load_word");

         defineExt(10, "load_char_oe");

         defineExt(11, "load_short_oe");

         defineExt(12, "load_word_oe");

         defineExt(16, "ncload_ubyte");

         defineExt(17, "ncload_byte");

         defineExt(18, "ncload_char");

         defineExt(19, "ncload_short");

         defineExt(20, "ncload_word");

         defineExt(26, "ncload_char_oe");

         defineExt(27, "ncload_short_oe");

         defineExt(28, "ncload_word_oe");

         defineExt(30, "cache_flush");

         defineExt(32, "store_byte");

         defineExt(34, "store_short");

         defineExt(36, "store_word");

         defineExt(42, "store_short_oe");

         defineExt(44, "store_word_oe");

         defineExt(48, "ncstore_byte");

         defineExt(50, "ncstore_short");

         defineExt(52, "ncstore_word");

         defineExt(58, "ncstore_short_oe");

         defineExt(60, "ncstore_word_oe");

         defineExt(62, "zero_line");

         defineNonPriv(5, "ret_from_sub");

         defineNonPriv(63, "enter_sync_method");

         definePriv(5, "ret_from_trap");

         definePriv(6, "read_dcache_tag");

         definePriv(7, "read_dcache_data");

         definePriv(14, "read_icache_tag");

         definePriv(15, "read_icache_data");

         definePriv(22, "powerdown");

         definePriv(23, "read_scache_data");

         definePriv(31, "cache_index_flush");

         definePriv(38, "write_dcache_tag");

         definePriv(39, "write_dcache_data");

         definePriv(46, "write_icache_tag");

         definePriv(47, "write_icache_data");

         definePriv(54, "reset");

         definePriv(55, "write_scache_data");

         for (k=0; k<32; k++) {

                 definePriv(k+64, "read_reg_"+k);

         }

         for (k=0; k<32; k++) {

                 definePriv(k+96, "write_reg_"+k);

         }

  }

   public static int opcLength(int opc) throws ArrayIndexOutOfBoundsException {

         switch (opc>>8) {

           case 0:

                 return opcLengthsTab[opc];

           case opc_wide:

                 switch (opc&0xFF) {

                   case opc_aload: case opc_astore:

                   case opc_fload: case opc_fstore:

                   case opc_iload: case opc_istore:

                   case opc_lload: case opc_lstore:

                   case opc_dload: case opc_dstore:

                   case opc_ret:

                         return  4;

                   case opc_iinc:

                         return  6;

                   default:

                         throw new ArrayIndexOutOfBoundsException();

                 }

           case opc_nonpriv:

           case opc_priv:

                 return 2;

           default:

                 throw new ArrayIndexOutOfBoundsException();

         }

   }

   public static String opcName(int opc) {

         try {

                 switch (opc>>8) {

                   case 0:

                         return opcNamesTab[opc];

                   case opc_wide: {

                         String mnem=opcNamesTab[opc&0xFF]+"_w";

                         if (mnemocodes.get(mnem) == null)

                                 return null; // non-existent opcode

                         return mnem;

                   }

                   case opc_nonpriv:

                         return opcExtNamesTab[opc&0xFF];

                   case opc_priv:

                         return opcPrivExtNamesTab[opc&0xFF];

                   default:

                         return null;

                 }

         } catch (ArrayIndexOutOfBoundsException e) {

                 switch (opc) {

                   case opc_nonpriv:

                         return "nonpriv";

                   case opc_priv:

                         return "priv";

                   default:

                         return null;

                 }

         }

   }

   public static int opcode(String mnem) {

         Integer Val=(Integer)(mnemocodes.get(mnem));

         if (Val == null) return -1;

         return Val.intValue();

   }

     /**

      * Initialized keyword and token Hashtables

      */

   static Vector keywordNames = new Vector(40);

   private static void defineKeywordName(String id, int token) {

         if (token>=keywordNames.size()) {

                 keywordNames.setSize(token+1);

         }

         keywordNames.setElementAt(id, token);

   }

   public static String keywordName(int token) {

         if (token==-1) return "EOF";

         if (token>=keywordNames.size()) return null;

         return (String)keywordNames.elementAt(token);

   }

   static {

         defineKeywordName("ident", IDENT);

         defineKeywordName("STRINGVAL", STRINGVAL);

         defineKeywordName("intVal", INTVAL);

         defineKeywordName("longVal", LONGVAL);

         defineKeywordName("floatVal", FLOATVAL);

         defineKeywordName("doubleVal", DOUBLEVAL);

         defineKeywordName("SEMICOLON", SEMICOLON);

         defineKeywordName("COLON", COLON);

         defineKeywordName("LBRACE", LBRACE);

         defineKeywordName("RBRACE", RBRACE);

   }

   static Hashtable keywords = new Hashtable(40);

   public static int keyword(String idValue) {

         Integer Val=(Integer)(keywords.get(idValue));

         if (Val == null) return IDENT;

         return Val.intValue();

   }

   private static void defineKeyword(String id, int token) {

         keywords.put(id, new Integer(token));

         defineKeywordName(id, token);

   }

   static {

         // Modifier keywords

         defineKeyword("private", PRIVATE);

         defineKeyword("public", PUBLIC);

         defineKeyword("protected",      PROTECTED);

         defineKeyword("static", STATIC);

         defineKeyword("transient",      TRANSIENT);

         defineKeyword("synchronized",   SYNCHRONIZED);

         defineKeyword("super",  SUPER);

         defineKeyword("native", NATIVE);

         defineKeyword("abstract",       ABSTRACT);

         defineKeyword("volatile", VOLATILE);

         defineKeyword("final",  FINAL);

         defineKeyword("interface",INTERFACE);

         defineKeyword("synthetic",SYNTHETIC);

         defineKeyword("strict",STRICT);

         // Declaration keywords

         defineKeyword("package",PACKAGE);

         defineKeyword("class",CLASS);

         defineKeyword("extends",EXTENDS);

         defineKeyword("implements",IMPLEMENTS);

         defineKeyword("const",  CONST);

         defineKeyword("throws",THROWS);

         defineKeyword("interface",INTERFACE);

         defineKeyword("Method",METHODREF);

         defineKeyword("Field",FIELDREF);

         defineKeyword("stack",STACK);

         defineKeyword("locals",LOCAL);

         // used in switchtables

         defineKeyword("default",        DEFAULT);

         // used in inner class declarations

         defineKeyword("InnerClass",     INNERCLASS);

         defineKeyword("of",     OF);

         // misc

         defineKeyword("bits",BITS);

         defineKeyword("Infinity",INF);

         defineKeyword("Inf",INF);

         defineKeyword("NaN",NAN);

   }

    /**

      * Define tag table.

      */

   private static Vector tagNames = new Vector(10);

   private static Hashtable Tags = new Hashtable(10);

   static {

         defineTag("Asciz",CONSTANT_UTF8);

         defineTag("int",CONSTANT_INTEGER);

         defineTag("float",CONSTANT_FLOAT);

         defineTag("long",CONSTANT_LONG);

         defineTag("double",CONSTANT_DOUBLE);

         defineTag("class",CONSTANT_CLASS);

         defineTag("String",CONSTANT_STRING);

         defineTag("Field",CONSTANT_FIELD);

         defineTag("Method",CONSTANT_METHOD);

         defineTag("InterfaceMethod",CONSTANT_INTERFACEMETHOD);

         defineTag("NameAndType",CONSTANT_NAMEANDTYPE);

   }

   private static void defineTag(String id, int val) {

         Tags.put(id, new Integer(val));

         if (val>=tagNames.size()) {

                 tagNames.setSize(val+1);

         }

         tagNames.setElementAt(id, val);

   }

   public static String tagName(int tag) {

         if (tag>=tagNames.size()) return null;

         return (String)tagNames.elementAt(tag);

   }

   public static int tagValue(String idValue) {

         Integer Val=(Integer)(Tags.get(idValue));

         if (Val == null) return 0;

         return Val.intValue();

   }

    /**

      * Define type table. These types used in "newarray" instruction only.

      */

   private static Vector typeNames = new Vector(10);

   private static Hashtable Types = new Hashtable(10);

   static {

         defineType("int",T_INT);

         defineType("long",T_LONG);

         defineType("float",T_FLOAT);

         defineType("double",T_DOUBLE);

         defineType("class",T_CLASS);

         defineType("boolean",T_BOOLEAN);

         defineType("char",T_CHAR);

         defineType("byte",T_BYTE);

         defineType("short",T_SHORT);

   }

   private static void defineType(String id, int val) {

         Types.put(id, new Integer(val));

         if (val>=typeNames.size()) {

                 typeNames.setSize(val+1);

         }

         typeNames.setElementAt(id, val);

   }

   public static int typeValue(String idValue) {

         Integer Val=(Integer)(Types.get(idValue));

         if (Val == null) return -1;

         return Val.intValue();

   }

   public static String typeName(int type) {

         if (type>=typeNames.size()) return null;

         return (String)typeNames.elementAt(type);

   }

    /**

      * Define MapTypes table.

      * These constants used in stackmap tables only.

      */

   private static Vector mapTypeNames = new Vector(10);

   private static Hashtable MapTypes = new Hashtable(10);

   static {

         defineMapType("bogus",             ITEM_Bogus);

         defineMapType("int",               ITEM_Integer);

         defineMapType("float",             ITEM_Float);

         defineMapType("double",            ITEM_Double);

         defineMapType("long",              ITEM_Long);

         defineMapType("null",              ITEM_Null);

         defineMapType("this",              ITEM_InitObject);

         defineMapType("CP",                ITEM_Object);

         defineMapType("uninitialized",     ITEM_NewObject);

   }

   private static void defineMapType(String id, int val) {

         MapTypes.put(id, new Integer(val));

         if (val>=mapTypeNames.size()) {

                 mapTypeNames.setSize(val+1);

         }

         mapTypeNames.setElementAt(id, val);

   }

   public static int mapTypeValue(String idValue) {

         Integer Val=(Integer)(MapTypes.get(idValue));

         if (Val == null) return -1;

         return Val.intValue();

   }

   public static String mapTypeName(int type) {

         if (type>=mapTypeNames.size()) return null;

         return (String)mapTypeNames.elementAt(type);

   }

 }