scale.jcr
Class CodeAttribute

java.lang.Object
  scale.jcr.AttributeInfo
      scale.jcr.CodeAttribute

public class CodeAttribute
extends AttributeInfo

This class is used to both represent a Java class file code attribute structure and to read that class file code attribute structure.

$Id: CodeAttribute.java,v 1.14 2007-10-04 19:58:15 burrill Exp $

Copyright 2008 by the Scale Compiler Group,
Department of Computer Science
University of Massachusetts,
Amherst MA. 01003, USA
All Rights Reserved.

Field Summary

static int	AALOAD
static int	AASTORE
static int	ACONST_NULL
static int	ALOAD
static int	ALOAD_0
static int	ALOAD_1
static int	ALOAD_2
static int	ALOAD_3
static int	ANEWARRAY
static int	ARETURN
static int	ARRAYLENGTH
static int	ASTORE
static int	ASTORE_0
static int	ASTORE_1
static int	ASTORE_2
static int	ASTORE_3
static int	ATHROW
static int	BALOAD
static int	BASTORE
static int	BIPUSH
static int	CALOAD
static int	CASTORE
static int	CHECKCAST
static int	D2F
static int	D2I
static int	D2L
static int	DADD
static int	DALOAD
static int	DASTORE
static int	DCMPG
static int	DCMPL
static int	DCONST_0
static int	DCONST_1
static int	DDIV
static int	DLOAD
static int	DLOAD_0
static int	DLOAD_1
static int	DLOAD_2
static int	DLOAD_3
static int	DMUL
static int	DNEG
static int	DREM
static int	DRETURN
static int	DSTORE
static int	DSTORE_0
static int	DSTORE_1
static int	DSTORE_2
static int	DSTORE_3
static int	DSUB
static int	DUP
static int	DUP_X1
static int	DUP_X2
static int	DUP2
static int	DUP2_X1
static int	DUP2_X2
static int	F2D
static int	F2I
static int	F2L
static int	FADD
static int	FALOAD
static int	FASTORE
static int	FCMPG
static int	FCMPL
static int	FCONST_0
static int	FCONST_1
static int	FCONST_2
static int	FDIV
static int	FLOAD
static int	FLOAD_0
static int	FLOAD_1
static int	FLOAD_2
static int	FLOAD_3
static int	FMUL
static int	FNEG
static int	FREM
static int	FRETURN
static int	FSTORE
static int	FSTORE_0
static int	FSTORE_1
static int	FSTORE_2
static int	FSTORE_3
static int	FSUB
static int	GETFIELD
static int	GETSTATIC
static int	GOTO
static int	GOTO_W
static int	I2B
static int	I2C
static int	I2D
static int	I2F
static int	I2L
static int	I2S
static int	IADD
static int	IALOAD
static int	IAND
static int	IASTORE
static int	ICONST_0
static int	ICONST_1
static int	ICONST_2
static int	ICONST_3
static int	ICONST_4
static int	ICONST_5
static int	ICONST_M1
static int	IDIV
static int	IF_ACMPEQ
static int	IF_ACMPNE
static int	IF_ICMPEQ
static int	IF_ICMPGE
static int	IF_ICMPGT
static int	IF_ICMPLE
static int	IF_ICMPLT
static int	IF_ICMPNE
static int	IFEQ
static int	IFGE
static int	IFGT
static int	IFLE
static int	IFLT
static int	IFNE
static int	IFNONNULL
static int	IFNULL
static int	IINC
static int	ILOAD
static int	ILOAD_0
static int	ILOAD_1
static int	ILOAD_2
static int	ILOAD_3
static int	IMUL
static int	INEG
static int	INSTANCEOF
static int	INVOKEINTERFACE
static int	INVOKESPECIAL
static int	INVOKESTATIC
static int	INVOKEVIRTUAL
static int	IOR
static int	IREM
static int	IRETURN
static int	ISHL
static int	ISHR
static boolean[]	isInteger Is the type an integer type?
static int	ISTORE
static int	ISTORE_0
static int	ISTORE_1
static int	ISTORE_2
static int	ISTORE_3
static boolean[]	isTwo Does the type take two words?
static int	ISUB
static int	IUSHR
static int	IXOR
static int	JSR
static int	JSR_W
static int	L2D
static int	L2F
static int	L2I
static int	LADD
static int	LALOAD
static int	LAND
static int	LASTORE
static int	LCMP
static int	LCONST_0
static int	LCONST_1
static int	LDC
static int	LDC_W
static int	LDC2_W
static int	LDIV
static int	LLOAD
static int	LLOAD_0
static int	LLOAD_1
static int	LLOAD_2
static int	LLOAD_3
static int	LMUL
static int	LNEG
static int	LOOKUPSWITCH
static int	LOR
static int	LREM
static int	LRETURN
static int	LSHL
static int	LSHR
static int	LSTORE
static int	LSTORE_0
static int	LSTORE_1
static int	LSTORE_2
static int	LSTORE_3
static int	LSUB
static int	LUSHR
static int	LXOR
static int	MONITORENTER
static int	MONITOREXIT
static int	MULTIANEWARRAY
static int	NEW
static int	NEWARRAY
static int	NOP The Java byte codes.
static java.lang.String[]	opcodeName Indexed by an opcode to obtain the name of the opcode for debugging.
static byte[]	opcodeSize Indexed by an opcode to obtain the instruction length.
static int	POP
static int	POP2
static int	PUTFIELD
static int	PUTSTATIC
static int	RET
static int	RETURN
static int	SALOAD
static int	SASTORE
static int	SIPUSH
static int	SWAP
static byte	T_ADDRESS Types from the NEWARRAY byte code.
static byte	T_BOOLEAN
static byte	T_BYTE
static byte	T_CHAR
static byte	T_DOUBLE
static byte	T_FLOAT
static byte	T_INT
static byte	T_LONG
static byte	T_SHORT
static int	TABLESWITCH
static char[]	typeSpecifier Convert from Java type number to Java type specifier.
static int	UNDEF186
static int	UNDEF202
static int	UNDEF203
static int	UNDEF204
static int	UNDEF205
static int	UNDEF206
static int	UNDEF207
static int	UNDEF208
static int	UNDEF209
static int	UNDEF210
static int	UNDEF211
static int	UNDEF212
static int	UNDEF213
static int	UNDEF214
static int	UNDEF215
static int	UNDEF216
static int	UNDEF217
static int	UNDEF218
static int	UNDEF219
static int	UNDEF220
static int	UNDEF221
static int	UNDEF222
static int	UNDEF223
static int	UNDEF224
static int	UNDEF225
static int	UNDEF226
static int	UNDEF227
static int	UNDEF228
static int	UNDEF229
static int	UNDEF230
static int	UNDEF231
static int	UNDEF232
static int	UNDEF233
static int	UNDEF234
static int	UNDEF235
static int	UNDEF236
static int	UNDEF237
static int	UNDEF238
static int	UNDEF239
static int	UNDEF240
static int	UNDEF241
static int	UNDEF242
static int	UNDEF243
static int	UNDEF244
static int	UNDEF245
static int	UNDEF246
static int	UNDEF247
static int	UNDEF248
static int	UNDEF249
static int	UNDEF250
static int	UNDEF251
static int	UNDEF252
static int	UNDEF253
static int	UNDEF254
static int	UNDEF255
static int	WIDE

Constructor Summary

CodeAttribute(int nameIndex, int maxStack, int maxLocals, byte[] code, ExceptionEntry[] exceptionTable, AttributeInfo[] attributes)

Method Summary

AttributeInfo[]	getAttributes()
int	getAttributesCount()
int	getByte(int index)
int	getByte2(int index)
int	getCodelength()
ExceptionEntry[]	getExceptionTable()
int	getExceptionTableLength()
int	getIndex(int index)
int	getIndex2(int index)
int	getIndex4(int index)
int	getMaxLocals()
int	getMaxStack()
int	getOpcode(int index)
int	getOpcodeLength(int index)
boolean	isBasicBlock(int index)
static CodeAttribute	read(ClassFile cf, java.io.DataInputStream reader, int nameIndex) Read in the CodeAttribute structure.

Methods inherited from class scale.jcr.AttributeInfo

getNameIndex, read

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NOP

public static final int NOP

The Java byte codes.

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Constant Field Values

ACONST_NULL

public static final int ACONST_NULL

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Constant Field Values

ICONST_M1

public static final int ICONST_M1

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ICONST_0

public static final int ICONST_0

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ICONST_1

public static final int ICONST_1

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ICONST_2

public static final int ICONST_2

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ICONST_3

public static final int ICONST_3

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ICONST_4

public static final int ICONST_4

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ICONST_5

public static final int ICONST_5

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LCONST_0

public static final int LCONST_0

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LCONST_1

public static final int LCONST_1

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FCONST_0

public static final int FCONST_0

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FCONST_1

public static final int FCONST_1

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FCONST_2

public static final int FCONST_2

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DCONST_0

public static final int DCONST_0

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DCONST_1

public static final int DCONST_1

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BIPUSH

public static final int BIPUSH

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SIPUSH

public static final int SIPUSH

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LDC

public static final int LDC

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LDC_W

public static final int LDC_W

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Constant Field Values

LDC2_W

public static final int LDC2_W

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Constant Field Values

ILOAD

public static final int ILOAD

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LLOAD

public static final int LLOAD

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FLOAD

public static final int FLOAD

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DLOAD

public static final int DLOAD

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Constant Field Values

ALOAD

public static final int ALOAD

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Constant Field Values

ILOAD_0

public static final int ILOAD_0

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ILOAD_1

public static final int ILOAD_1

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ILOAD_2

public static final int ILOAD_2

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ILOAD_3

public static final int ILOAD_3

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LLOAD_0

public static final int LLOAD_0

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LLOAD_1

public static final int LLOAD_1

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LLOAD_2

public static final int LLOAD_2

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LLOAD_3

public static final int LLOAD_3

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FLOAD_0

public static final int FLOAD_0

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FLOAD_1

public static final int FLOAD_1

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FLOAD_2

public static final int FLOAD_2

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FLOAD_3

public static final int FLOAD_3

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DLOAD_0

public static final int DLOAD_0

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DLOAD_1

public static final int DLOAD_1

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DLOAD_2

public static final int DLOAD_2

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DLOAD_3

public static final int DLOAD_3

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ALOAD_0

public static final int ALOAD_0

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ALOAD_1

public static final int ALOAD_1

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ALOAD_2

public static final int ALOAD_2

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ALOAD_3

public static final int ALOAD_3

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IALOAD

public static final int IALOAD

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LALOAD

public static final int LALOAD

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FALOAD

public static final int FALOAD

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DALOAD

public static final int DALOAD

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AALOAD

public static final int AALOAD

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BALOAD

public static final int BALOAD

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CALOAD

public static final int CALOAD

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SALOAD

public static final int SALOAD

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ISTORE

public static final int ISTORE

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LSTORE

public static final int LSTORE

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FSTORE

public static final int FSTORE

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DSTORE

public static final int DSTORE

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ASTORE

public static final int ASTORE

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ISTORE_0

public static final int ISTORE_0

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ISTORE_1

public static final int ISTORE_1

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ISTORE_2

public static final int ISTORE_2

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ISTORE_3

public static final int ISTORE_3

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LSTORE_0

public static final int LSTORE_0

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LSTORE_1

public static final int LSTORE_1

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LSTORE_2

public static final int LSTORE_2

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LSTORE_3

public static final int LSTORE_3

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FSTORE_0

public static final int FSTORE_0

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FSTORE_1

public static final int FSTORE_1

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FSTORE_2

public static final int FSTORE_2

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FSTORE_3

public static final int FSTORE_3

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DSTORE_0

public static final int DSTORE_0

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DSTORE_1

public static final int DSTORE_1

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DSTORE_2

public static final int DSTORE_2

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DSTORE_3

public static final int DSTORE_3

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ASTORE_0

public static final int ASTORE_0

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ASTORE_1

public static final int ASTORE_1

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ASTORE_2

public static final int ASTORE_2

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ASTORE_3

public static final int ASTORE_3

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IASTORE

public static final int IASTORE

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LASTORE

public static final int LASTORE

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FASTORE

public static final int FASTORE

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DASTORE

public static final int DASTORE

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AASTORE

public static final int AASTORE

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BASTORE

public static final int BASTORE

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CASTORE

public static final int CASTORE

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SASTORE

public static final int SASTORE

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POP

public static final int POP

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Constant Field Values

POP2

public static final int POP2

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Constant Field Values

DUP

public static final int DUP

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DUP_X1

public static final int DUP_X1

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DUP_X2

public static final int DUP_X2

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DUP2

public static final int DUP2

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Constant Field Values

DUP2_X1

public static final int DUP2_X1

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DUP2_X2

public static final int DUP2_X2

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SWAP

public static final int SWAP

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IADD

public static final int IADD

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LADD

public static final int LADD

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FADD

public static final int FADD

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DADD

public static final int DADD

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Constant Field Values

ISUB

public static final int ISUB

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LSUB

public static final int LSUB

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FSUB

public static final int FSUB

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DSUB

public static final int DSUB

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Constant Field Values

IMUL

public static final int IMUL

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Constant Field Values

LMUL

public static final int LMUL

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Constant Field Values

FMUL

public static final int FMUL

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Constant Field Values

DMUL

public static final int DMUL

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Constant Field Values

IDIV

public static final int IDIV

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Constant Field Values

LDIV

public static final int LDIV

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FDIV

public static final int FDIV

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Constant Field Values

DDIV

public static final int DDIV

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Constant Field Values

IREM

public static final int IREM

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Constant Field Values

LREM

public static final int LREM

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Constant Field Values

FREM

public static final int FREM

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Constant Field Values

DREM

public static final int DREM

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Constant Field Values

INEG

public static final int INEG

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Constant Field Values

LNEG

public static final int LNEG

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Constant Field Values

FNEG

public static final int FNEG

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Constant Field Values

DNEG

public static final int DNEG

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Constant Field Values

ISHL

public static final int ISHL

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Constant Field Values

LSHL

public static final int LSHL

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Constant Field Values

ISHR

public static final int ISHR

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Constant Field Values

LSHR

public static final int LSHR

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Constant Field Values

IUSHR

public static final int IUSHR

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Constant Field Values

LUSHR

public static final int LUSHR

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Constant Field Values

IAND

public static final int IAND

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Constant Field Values

LAND

public static final int LAND

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Constant Field Values

IOR

public static final int IOR

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Constant Field Values

LOR

public static final int LOR

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Constant Field Values

IXOR

public static final int IXOR

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Constant Field Values

LXOR

public static final int LXOR

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Constant Field Values

IINC

public static final int IINC

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Constant Field Values

I2L

public static final int I2L

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Constant Field Values

I2F

public static final int I2F

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Constant Field Values

I2D

public static final int I2D

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Constant Field Values

L2I

public static final int L2I

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Constant Field Values

L2F

public static final int L2F

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Constant Field Values

L2D

public static final int L2D

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Constant Field Values

F2I

public static final int F2I

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Constant Field Values

F2L

public static final int F2L

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Constant Field Values

F2D

public static final int F2D

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Constant Field Values

D2I

public static final int D2I

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Constant Field Values

D2L

public static final int D2L

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Constant Field Values

D2F

public static final int D2F

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Constant Field Values

I2B

public static final int I2B

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Constant Field Values

I2C

public static final int I2C

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Constant Field Values

I2S

public static final int I2S

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Constant Field Values

LCMP

public static final int LCMP

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Constant Field Values

FCMPL

public static final int FCMPL

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Constant Field Values

FCMPG

public static final int FCMPG

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Constant Field Values

DCMPL

public static final int DCMPL

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Constant Field Values

DCMPG

public static final int DCMPG

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Constant Field Values

IFEQ

public static final int IFEQ

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Constant Field Values

IFNE

public static final int IFNE

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Constant Field Values

IFLT

public static final int IFLT

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Constant Field Values

IFGE

public static final int IFGE

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Constant Field Values

IFGT

public static final int IFGT

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Constant Field Values

IFLE

public static final int IFLE

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Constant Field Values

IF_ICMPEQ

public static final int IF_ICMPEQ

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Constant Field Values

IF_ICMPNE

public static final int IF_ICMPNE

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Constant Field Values

IF_ICMPLT

public static final int IF_ICMPLT

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Constant Field Values

IF_ICMPGE

public static final int IF_ICMPGE

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Constant Field Values

IF_ICMPGT

public static final int IF_ICMPGT

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Constant Field Values

IF_ICMPLE

public static final int IF_ICMPLE

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Constant Field Values

IF_ACMPEQ

public static final int IF_ACMPEQ

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Constant Field Values

IF_ACMPNE

public static final int IF_ACMPNE

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Constant Field Values

GOTO

public static final int GOTO

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Constant Field Values

JSR

public static final int JSR

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Constant Field Values

RET

public static final int RET

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Constant Field Values

TABLESWITCH

public static final int TABLESWITCH

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Constant Field Values

LOOKUPSWITCH

public static final int LOOKUPSWITCH

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Constant Field Values

IRETURN

public static final int IRETURN

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Constant Field Values

LRETURN

public static final int LRETURN

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Constant Field Values

FRETURN

public static final int FRETURN

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Constant Field Values

DRETURN

public static final int DRETURN

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Constant Field Values

ARETURN

public static final int ARETURN

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Constant Field Values

RETURN

public static final int RETURN

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Constant Field Values

GETSTATIC

public static final int GETSTATIC

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Constant Field Values

PUTSTATIC

public static final int PUTSTATIC

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Constant Field Values

GETFIELD

public static final int GETFIELD

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Constant Field Values

PUTFIELD

public static final int PUTFIELD

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Constant Field Values

INVOKEVIRTUAL

public static final int INVOKEVIRTUAL

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Constant Field Values

INVOKESPECIAL

public static final int INVOKESPECIAL

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Constant Field Values

INVOKESTATIC

public static final int INVOKESTATIC

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Constant Field Values

INVOKEINTERFACE

public static final int INVOKEINTERFACE

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Constant Field Values

UNDEF186

public static final int UNDEF186

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Constant Field Values

NEW

public static final int NEW

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Constant Field Values

NEWARRAY

public static final int NEWARRAY

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Constant Field Values

ANEWARRAY

public static final int ANEWARRAY

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Constant Field Values

ARRAYLENGTH

public static final int ARRAYLENGTH

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Constant Field Values

ATHROW

public static final int ATHROW

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Constant Field Values

CHECKCAST

public static final int CHECKCAST

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Constant Field Values

INSTANCEOF

public static final int INSTANCEOF

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Constant Field Values

MONITORENTER

public static final int MONITORENTER

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Constant Field Values

MONITOREXIT

public static final int MONITOREXIT

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Constant Field Values

WIDE

public static final int WIDE

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Constant Field Values

MULTIANEWARRAY

public static final int MULTIANEWARRAY

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Constant Field Values

IFNULL

public static final int IFNULL

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Constant Field Values

IFNONNULL

public static final int IFNONNULL

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Constant Field Values

GOTO_W

public static final int GOTO_W

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Constant Field Values

JSR_W

public static final int JSR_W

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Constant Field Values

UNDEF202

public static final int UNDEF202

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Constant Field Values

UNDEF203

public static final int UNDEF203

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UNDEF204

public static final int UNDEF204

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UNDEF205

public static final int UNDEF205

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Constant Field Values

UNDEF206

public static final int UNDEF206

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Constant Field Values

UNDEF207

public static final int UNDEF207

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Constant Field Values

UNDEF208

public static final int UNDEF208

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Constant Field Values

UNDEF209

public static final int UNDEF209

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Constant Field Values

UNDEF210

public static final int UNDEF210

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Constant Field Values

UNDEF211

public static final int UNDEF211

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Constant Field Values

UNDEF212

public static final int UNDEF212

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Constant Field Values

UNDEF213

public static final int UNDEF213

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Constant Field Values

UNDEF214

public static final int UNDEF214

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UNDEF215

public static final int UNDEF215

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UNDEF216

public static final int UNDEF216

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UNDEF217

public static final int UNDEF217

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UNDEF218

public static final int UNDEF218

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UNDEF219

public static final int UNDEF219

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UNDEF220

public static final int UNDEF220

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UNDEF221

public static final int UNDEF221

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UNDEF222

public static final int UNDEF222

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UNDEF223

public static final int UNDEF223

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UNDEF224

public static final int UNDEF224

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UNDEF225

public static final int UNDEF225

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UNDEF226

public static final int UNDEF226

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UNDEF227

public static final int UNDEF227

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UNDEF228

public static final int UNDEF228

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UNDEF229

public static final int UNDEF229

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UNDEF230

public static final int UNDEF230

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UNDEF231

public static final int UNDEF231

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UNDEF232

public static final int UNDEF232

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UNDEF233

public static final int UNDEF233

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UNDEF234

public static final int UNDEF234

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UNDEF235

public static final int UNDEF235

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UNDEF236

public static final int UNDEF236

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UNDEF237

public static final int UNDEF237

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UNDEF238

public static final int UNDEF238

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UNDEF239

public static final int UNDEF239

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UNDEF240

public static final int UNDEF240

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UNDEF241

public static final int UNDEF241

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UNDEF242

public static final int UNDEF242

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UNDEF243

public static final int UNDEF243

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UNDEF244

public static final int UNDEF244

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UNDEF245

public static final int UNDEF245

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UNDEF246

public static final int UNDEF246

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UNDEF247

public static final int UNDEF247

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UNDEF248

public static final int UNDEF248

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UNDEF249

public static final int UNDEF249

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UNDEF250

public static final int UNDEF250

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UNDEF251

public static final int UNDEF251

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UNDEF252

public static final int UNDEF252

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UNDEF253

public static final int UNDEF253

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UNDEF254

public static final int UNDEF254

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UNDEF255

public static final int UNDEF255

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opcodeSize

public static final byte[] opcodeSize

Indexed by an opcode to obtain the instruction length. An entry of -1 indicates a variable length instruction.

opcodeName

public static final java.lang.String[] opcodeName

Indexed by an opcode to obtain the name of the opcode for debugging.

T_ADDRESS

public static final byte T_ADDRESS

Types from the NEWARRAY byte code.

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T_BOOLEAN

public static final byte T_BOOLEAN

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T_CHAR

public static final byte T_CHAR

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T_FLOAT

public static final byte T_FLOAT

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T_DOUBLE

public static final byte T_DOUBLE

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T_BYTE

public static final byte T_BYTE

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T_SHORT

public static final byte T_SHORT

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T_INT

public static final byte T_INT

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T_LONG

public static final byte T_LONG

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typeSpecifier

public static final char[] typeSpecifier

Convert from Java type number to Java type specifier.

isInteger

public static final boolean[] isInteger

Is the type an integer type?

isTwo

public static final boolean[] isTwo

Does the type take two words?

Constructor Detail

CodeAttribute

public CodeAttribute(int nameIndex,
                     int maxStack,
                     int maxLocals,
                     byte[] code,
                     ExceptionEntry[] exceptionTable,
                     AttributeInfo[] attributes)

Method Detail

getMaxStack

public int getMaxStack()

getMaxLocals

public int getMaxLocals()

getCodelength

public int getCodelength()

getExceptionTableLength

public int getExceptionTableLength()

getExceptionTable

public ExceptionEntry[] getExceptionTable()

getAttributesCount

public int getAttributesCount()

getAttributes

public AttributeInfo[] getAttributes()

getOpcode

public int getOpcode(int index)

getOpcodeLength

public int getOpcodeLength(int index)

Parameters:

index - is the index of the opcode in the code

Returns:

the length of the instruction at the current PC location

isBasicBlock

public boolean isBasicBlock(int index)

Parameters:

index - into the code

Returns:

true if this byte starts a basic block in the code

getIndex

public int getIndex(int index)

Returns:

the 8-bit unsigned value at the specified location

getIndex2

public int getIndex2(int index)

Returns:

the 16-bit unsigned value at the specified location

getIndex4

public int getIndex4(int index)

Returns:

the 32-bit signed value at the specified location

getByte

public int getByte(int index)

Returns:

the 8-bit signed value at the specified location

getByte2

public int getByte2(int index)

Returns:

the 16-bit signed value at the specified location

read

public static CodeAttribute read(ClassFile cf,
                                 java.io.DataInputStream reader,
                                 int nameIndex)
                          throws java.io.IOException

Read in the CodeAttribute structure.

Throws:

java.io.IOException - if there is an IO problem