程序包 proguard.classfile.instruction

类 Instruction

java.lang.Object

proguard.classfile.instruction.Instruction

直接已知子类:

BranchInstruction, CodeAttributeEditor.Label, ConstantInstruction, InstructionSequenceReplacer.Label, SimpleInstruction, SwitchInstruction, VariableInstruction

public abstract class Instruction
extends Object

Base class for representing instructions.

字段概要

字段

修饰符和类型	字段	说明
static final byte	ARRAY_T_BOOLEAN
static final byte	ARRAY_T_BYTE
static final byte	ARRAY_T_CHAR
static final byte	ARRAY_T_DOUBLE
static final byte	ARRAY_T_FLOAT
static final byte	ARRAY_T_INT
static final byte	ARRAY_T_LONG
static final byte	ARRAY_T_SHORT
static final String[]	NAMES
static final byte	OP_AALOAD
static final byte	OP_AASTORE
static final byte	OP_ACONST_NULL
static final byte	OP_ALOAD
static final byte	OP_ALOAD_0
static final byte	OP_ALOAD_1
static final byte	OP_ALOAD_2
static final byte	OP_ALOAD_3
static final byte	OP_ANEWARRAY
static final byte	OP_ARETURN
static final byte	OP_ARRAYLENGTH
static final byte	OP_ASTORE
static final byte	OP_ASTORE_0
static final byte	OP_ASTORE_1
static final byte	OP_ASTORE_2
static final byte	OP_ASTORE_3
static final byte	OP_ATHROW
static final byte	OP_BALOAD
static final byte	OP_BASTORE
static final byte	OP_BIPUSH
static final byte	OP_CALOAD
static final byte	OP_CASTORE
static final byte	OP_CHECKCAST
static final byte	OP_D2F
static final byte	OP_D2I
static final byte	OP_D2L
static final byte	OP_DADD
static final byte	OP_DALOAD
static final byte	OP_DASTORE
static final byte	OP_DCMPG
static final byte	OP_DCMPL
static final byte	OP_DCONST_0
static final byte	OP_DCONST_1
static final byte	OP_DDIV
static final byte	OP_DLOAD
static final byte	OP_DLOAD_0
static final byte	OP_DLOAD_1
static final byte	OP_DLOAD_2
static final byte	OP_DLOAD_3
static final byte	OP_DMUL
static final byte	OP_DNEG
static final byte	OP_DREM
static final byte	OP_DRETURN
static final byte	OP_DSTORE
static final byte	OP_DSTORE_0
static final byte	OP_DSTORE_1
static final byte	OP_DSTORE_2
static final byte	OP_DSTORE_3
static final byte	OP_DSUB
static final byte	OP_DUP
static final byte	OP_DUP_X1
static final byte	OP_DUP_X2
static final byte	OP_DUP2
static final byte	OP_DUP2_X1
static final byte	OP_DUP2_X2
static final byte	OP_F2D
static final byte	OP_F2I
static final byte	OP_F2L
static final byte	OP_FADD
static final byte	OP_FALOAD
static final byte	OP_FASTORE
static final byte	OP_FCMPG
static final byte	OP_FCMPL
static final byte	OP_FCONST_0
static final byte	OP_FCONST_1
static final byte	OP_FCONST_2
static final byte	OP_FDIV
static final byte	OP_FLOAD
static final byte	OP_FLOAD_0
static final byte	OP_FLOAD_1
static final byte	OP_FLOAD_2
static final byte	OP_FLOAD_3
static final byte	OP_FMUL
static final byte	OP_FNEG
static final byte	OP_FREM
static final byte	OP_FRETURN
static final byte	OP_FSTORE
static final byte	OP_FSTORE_0
static final byte	OP_FSTORE_1
static final byte	OP_FSTORE_2
static final byte	OP_FSTORE_3
static final byte	OP_FSUB
static final byte	OP_GETFIELD
static final byte	OP_GETSTATIC
static final byte	OP_GOTO
static final byte	OP_GOTO_W
static final byte	OP_I2B
static final byte	OP_I2C
static final byte	OP_I2D
static final byte	OP_I2F
static final byte	OP_I2L
static final byte	OP_I2S
static final byte	OP_IADD
static final byte	OP_IALOAD
static final byte	OP_IAND
static final byte	OP_IASTORE
static final byte	OP_ICONST_0
static final byte	OP_ICONST_1
static final byte	OP_ICONST_2
static final byte	OP_ICONST_3
static final byte	OP_ICONST_4
static final byte	OP_ICONST_5
static final byte	OP_ICONST_M1
static final byte	OP_IDIV
static final byte	OP_IFACMPEQ
static final byte	OP_IFACMPNE
static final byte	OP_IFEQ
static final byte	OP_IFGE
static final byte	OP_IFGT
static final byte	OP_IFICMPEQ
static final byte	OP_IFICMPGE
static final byte	OP_IFICMPGT
static final byte	OP_IFICMPLE
static final byte	OP_IFICMPLT
static final byte	OP_IFICMPNE
static final byte	OP_IFLE
static final byte	OP_IFLT
static final byte	OP_IFNE
static final byte	OP_IFNONNULL
static final byte	OP_IFNULL
static final byte	OP_IINC
static final byte	OP_ILOAD
static final byte	OP_ILOAD_0
static final byte	OP_ILOAD_1
static final byte	OP_ILOAD_2
static final byte	OP_ILOAD_3
static final byte	OP_IMUL
static final byte	OP_INEG
static final byte	OP_INSTANCEOF
static final byte	OP_INVOKEDYNAMIC
static final byte	OP_INVOKEINTERFACE
static final byte	OP_INVOKESPECIAL
static final byte	OP_INVOKESTATIC
static final byte	OP_INVOKEVIRTUAL
static final byte	OP_IOR
static final byte	OP_IREM
static final byte	OP_IRETURN
static final byte	OP_ISHL
static final byte	OP_ISHR
static final byte	OP_ISTORE
static final byte	OP_ISTORE_0
static final byte	OP_ISTORE_1
static final byte	OP_ISTORE_2
static final byte	OP_ISTORE_3
static final byte	OP_ISUB
static final byte	OP_IUSHR
static final byte	OP_IXOR
static final byte	OP_JSR
static final byte	OP_JSR_W
static final byte	OP_L2D
static final byte	OP_L2F
static final byte	OP_L2I
static final byte	OP_LADD
static final byte	OP_LALOAD
static final byte	OP_LAND
static final byte	OP_LASTORE
static final byte	OP_LCMP
static final byte	OP_LCONST_0
static final byte	OP_LCONST_1
static final byte	OP_LDC
static final byte	OP_LDC_W
static final byte	OP_LDC2_W
static final byte	OP_LDIV
static final byte	OP_LLOAD
static final byte	OP_LLOAD_0
static final byte	OP_LLOAD_1
static final byte	OP_LLOAD_2
static final byte	OP_LLOAD_3
static final byte	OP_LMUL
static final byte	OP_LNEG
static final byte	OP_LOOKUPSWITCH
static final byte	OP_LOR
static final byte	OP_LREM
static final byte	OP_LRETURN
static final byte	OP_LSHL
static final byte	OP_LSHR
static final byte	OP_LSTORE
static final byte	OP_LSTORE_0
static final byte	OP_LSTORE_1
static final byte	OP_LSTORE_2
static final byte	OP_LSTORE_3
static final byte	OP_LSUB
static final byte	OP_LUSHR
static final byte	OP_LXOR
static final byte	OP_MONITORENTER
static final byte	OP_MONITOREXIT
static final byte	OP_MULTIANEWARRAY
static final byte	OP_NEW
static final byte	OP_NEWARRAY
static final byte	OP_NOP
static final byte	OP_POP
static final byte	OP_POP2
static final byte	OP_PUTFIELD
static final byte	OP_PUTSTATIC
static final byte	OP_RET
static final byte	OP_RETURN
static final byte	OP_SALOAD
static final byte	OP_SASTORE
static final byte	OP_SIPUSH
static final byte	OP_SWAP
static final byte	OP_TABLESWITCH
static final byte	OP_WIDE
byte	opcode

构造器概要

构造器

构造器	说明
Instruction()

方法概要

修饰符和类型	方法	说明
abstract void	accept(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, InstructionVisitor instructionVisitor)	Accepts the given visitor.
byte	actualOpcode()	Returns the actual opcode of this instruction, i.e. the opcode that is stored in the bytecode.
byte	canonicalOpcode()	Returns the canonical opcode of this instruction, i.e. typically the opcode whose extension has been removed.
abstract boolean	equals(Object o)
String	getName()	Returns the name of the instruction.
abstract int	hashCode()
boolean	isCategory2()	Returns whether the instruction is a Category 2 instruction.
protected boolean	isWide()	Returns whether the instruction is wide, i.e. preceded by a wide opcode.
abstract int	length(int offset)	Returns the length in bytes of the instruction.
boolean	mayInstanceThrowExceptions(Clazz clazz)	Returns whether a particular instance of an instruction may throw exceptions.
boolean	mayThrowExceptions()	Returns whether the instruction may conservatively throw exceptions.
protected static int	readByte(byte[] code, int offset)
protected abstract void	readInfo(byte[] code, int offset)	Reads the data following the instruction opcode.
protected static int	readInt(byte[] code, int offset)
protected static int	readShort(byte[] code, int offset)
protected static int	readSignedByte(byte[] code, int offset)
protected static int	readSignedShort(byte[] code, int offset)
protected static int	readSignedValue(byte[] code, int offset, int valueSize)
protected static int	readValue(byte[] code, int offset, int valueSize)
abstract Instruction	shrink()	Shrinks this instruction to its shortest possible form.
int	stackEntryIndexBefore(Clazz clazz, int stackEntryIndexAfter)	Returns the stack entry index from which the specified stack entry is copied by a dup/swap/checkcast instruction, or -1 otherwise.
int	stackPopCount(Clazz clazz)	Returns the number of entries popped from the stack during the execution of the instruction.
int	stackPushCount(Clazz clazz)	Returns the number of entries pushed onto the stack during the execution of the instruction.
String	toString(int offset)	Returns a description of the instruction, at the given offset.
String	toString(Clazz clazz, int offset)	Returns a description of the instruction, at the given offset.
void	write(byte[] code, int offset)	Writes the Instruction at the given offset in the given code array.
final void	write(CodeAttribute codeAttribute, int offset)	Writes the Instruction at the given offset in the given code attribute.
protected static void	writeByte(byte[] code, int offset, int value)
protected abstract void	writeInfo(byte[] code, int offset)	Writes data following the instruction opcode.
protected static void	writeInt(byte[] code, int offset, int value)
protected static void	writeShort(byte[] code, int offset, int value)
protected static void	writeSignedByte(byte[] code, int offset, int value)
protected static void	writeSignedShort(byte[] code, int offset, int value)
protected static void	writeSignedValue(byte[] code, int offset, int value, int valueSize)
protected static void	writeValue(byte[] code, int offset, int value, int valueSize)

从类继承的方法 java.lang.Object

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

字段详细资料

OP_NOP

public static final byte OP_NOP

另请参阅:

• 常量字段值

OP_ACONST_NULL

public static final byte OP_ACONST_NULL

另请参阅:

• 常量字段值

OP_ICONST_M1

public static final byte OP_ICONST_M1

另请参阅:

• 常量字段值

OP_ICONST_0

public static final byte OP_ICONST_0

另请参阅:

• 常量字段值

OP_ICONST_1

public static final byte OP_ICONST_1

另请参阅:

• 常量字段值

OP_ICONST_2

public static final byte OP_ICONST_2

另请参阅:

• 常量字段值

OP_ICONST_3

public static final byte OP_ICONST_3

另请参阅:

• 常量字段值

OP_ICONST_4

public static final byte OP_ICONST_4

另请参阅:

• 常量字段值

OP_ICONST_5

public static final byte OP_ICONST_5

另请参阅:

• 常量字段值

OP_LCONST_0

public static final byte OP_LCONST_0

另请参阅:

• 常量字段值

OP_LCONST_1

public static final byte OP_LCONST_1

另请参阅:

• 常量字段值

OP_FCONST_0

public static final byte OP_FCONST_0

另请参阅:

• 常量字段值

OP_FCONST_1

public static final byte OP_FCONST_1

另请参阅:

• 常量字段值

OP_FCONST_2

public static final byte OP_FCONST_2

另请参阅:

• 常量字段值

OP_DCONST_0

public static final byte OP_DCONST_0

另请参阅:

• 常量字段值

OP_DCONST_1

public static final byte OP_DCONST_1

另请参阅:

• 常量字段值

OP_BIPUSH

public static final byte OP_BIPUSH

另请参阅:

• 常量字段值

OP_SIPUSH

public static final byte OP_SIPUSH

另请参阅:

• 常量字段值

OP_LDC

public static final byte OP_LDC

另请参阅:

• 常量字段值

OP_LDC_W

public static final byte OP_LDC_W

另请参阅:

• 常量字段值

OP_LDC2_W

public static final byte OP_LDC2_W

另请参阅:

• 常量字段值

OP_ILOAD

public static final byte OP_ILOAD

另请参阅:

• 常量字段值

OP_LLOAD

public static final byte OP_LLOAD

另请参阅:

• 常量字段值

OP_FLOAD

public static final byte OP_FLOAD

另请参阅:

• 常量字段值

OP_DLOAD

public static final byte OP_DLOAD

另请参阅:

• 常量字段值

OP_ALOAD

public static final byte OP_ALOAD

另请参阅:

• 常量字段值

OP_ILOAD_0

public static final byte OP_ILOAD_0

另请参阅:

• 常量字段值

OP_ILOAD_1

public static final byte OP_ILOAD_1

另请参阅:

• 常量字段值

OP_ILOAD_2

public static final byte OP_ILOAD_2

另请参阅:

• 常量字段值

OP_ILOAD_3

public static final byte OP_ILOAD_3

另请参阅:

• 常量字段值

OP_LLOAD_0

public static final byte OP_LLOAD_0

另请参阅:

• 常量字段值

OP_LLOAD_1

public static final byte OP_LLOAD_1

另请参阅:

• 常量字段值

OP_LLOAD_2

public static final byte OP_LLOAD_2

另请参阅:

• 常量字段值

OP_LLOAD_3

public static final byte OP_LLOAD_3

另请参阅:

• 常量字段值

OP_FLOAD_0

public static final byte OP_FLOAD_0

另请参阅:

• 常量字段值

OP_FLOAD_1

public static final byte OP_FLOAD_1

另请参阅:

• 常量字段值

OP_FLOAD_2

public static final byte OP_FLOAD_2

另请参阅:

• 常量字段值

OP_FLOAD_3

public static final byte OP_FLOAD_3

另请参阅:

• 常量字段值

OP_DLOAD_0

public static final byte OP_DLOAD_0

另请参阅:

• 常量字段值

OP_DLOAD_1

public static final byte OP_DLOAD_1

另请参阅:

• 常量字段值

OP_DLOAD_2

public static final byte OP_DLOAD_2

另请参阅:

• 常量字段值

OP_DLOAD_3

public static final byte OP_DLOAD_3

另请参阅:

• 常量字段值

OP_ALOAD_0

public static final byte OP_ALOAD_0

另请参阅:

• 常量字段值

OP_ALOAD_1

public static final byte OP_ALOAD_1

另请参阅:

• 常量字段值

OP_ALOAD_2

public static final byte OP_ALOAD_2

另请参阅:

• 常量字段值

OP_ALOAD_3

public static final byte OP_ALOAD_3

另请参阅:

• 常量字段值

OP_IALOAD

public static final byte OP_IALOAD

另请参阅:

• 常量字段值

OP_LALOAD

public static final byte OP_LALOAD

另请参阅:

• 常量字段值

OP_FALOAD

public static final byte OP_FALOAD

另请参阅:

• 常量字段值

OP_DALOAD

public static final byte OP_DALOAD

另请参阅:

• 常量字段值

OP_AALOAD

public static final byte OP_AALOAD

另请参阅:

• 常量字段值

OP_BALOAD

public static final byte OP_BALOAD

另请参阅:

• 常量字段值

OP_CALOAD

public static final byte OP_CALOAD

另请参阅:

• 常量字段值

OP_SALOAD

public static final byte OP_SALOAD

另请参阅:

• 常量字段值

OP_ISTORE

public static final byte OP_ISTORE

另请参阅:

• 常量字段值

OP_LSTORE

public static final byte OP_LSTORE

另请参阅:

• 常量字段值

OP_FSTORE

public static final byte OP_FSTORE

另请参阅:

• 常量字段值

OP_DSTORE

public static final byte OP_DSTORE

另请参阅:

• 常量字段值

OP_ASTORE

public static final byte OP_ASTORE

另请参阅:

• 常量字段值

OP_ISTORE_0

public static final byte OP_ISTORE_0

另请参阅:

• 常量字段值

OP_ISTORE_1

public static final byte OP_ISTORE_1

另请参阅:

• 常量字段值

OP_ISTORE_2

public static final byte OP_ISTORE_2

另请参阅:

• 常量字段值

OP_ISTORE_3

public static final byte OP_ISTORE_3

另请参阅:

• 常量字段值

OP_LSTORE_0

public static final byte OP_LSTORE_0

另请参阅:

• 常量字段值

OP_LSTORE_1

public static final byte OP_LSTORE_1

另请参阅:

• 常量字段值

OP_LSTORE_2

public static final byte OP_LSTORE_2

另请参阅:

• 常量字段值

OP_LSTORE_3

public static final byte OP_LSTORE_3

另请参阅:

• 常量字段值

OP_FSTORE_0

public static final byte OP_FSTORE_0

另请参阅:

• 常量字段值

OP_FSTORE_1

public static final byte OP_FSTORE_1

另请参阅:

• 常量字段值

OP_FSTORE_2

public static final byte OP_FSTORE_2

另请参阅:

• 常量字段值

OP_FSTORE_3

public static final byte OP_FSTORE_3

另请参阅:

• 常量字段值

OP_DSTORE_0

public static final byte OP_DSTORE_0

另请参阅:

• 常量字段值

OP_DSTORE_1

public static final byte OP_DSTORE_1

另请参阅:

• 常量字段值

OP_DSTORE_2

public static final byte OP_DSTORE_2

另请参阅:

• 常量字段值

OP_DSTORE_3

public static final byte OP_DSTORE_3

另请参阅:

• 常量字段值

OP_ASTORE_0

public static final byte OP_ASTORE_0

另请参阅:

• 常量字段值

OP_ASTORE_1

public static final byte OP_ASTORE_1

另请参阅:

• 常量字段值

OP_ASTORE_2

public static final byte OP_ASTORE_2

另请参阅:

• 常量字段值

OP_ASTORE_3

public static final byte OP_ASTORE_3

另请参阅:

• 常量字段值

OP_IASTORE

public static final byte OP_IASTORE

另请参阅:

• 常量字段值

OP_LASTORE

public static final byte OP_LASTORE

另请参阅:

• 常量字段值

OP_FASTORE

public static final byte OP_FASTORE

另请参阅:

• 常量字段值

OP_DASTORE

public static final byte OP_DASTORE

另请参阅:

• 常量字段值

OP_AASTORE

public static final byte OP_AASTORE

另请参阅:

• 常量字段值

OP_BASTORE

public static final byte OP_BASTORE

另请参阅:

• 常量字段值

OP_CASTORE

public static final byte OP_CASTORE

另请参阅:

• 常量字段值

OP_SASTORE

public static final byte OP_SASTORE

另请参阅:

• 常量字段值

OP_POP

public static final byte OP_POP

另请参阅:

• 常量字段值

OP_POP2

public static final byte OP_POP2

另请参阅:

• 常量字段值

OP_DUP

public static final byte OP_DUP

另请参阅:

• 常量字段值

OP_DUP_X1

public static final byte OP_DUP_X1

另请参阅:

• 常量字段值

OP_DUP_X2

public static final byte OP_DUP_X2

另请参阅:

• 常量字段值

OP_DUP2

public static final byte OP_DUP2

另请参阅:

• 常量字段值

OP_DUP2_X1

public static final byte OP_DUP2_X1

另请参阅:

• 常量字段值

OP_DUP2_X2

public static final byte OP_DUP2_X2

另请参阅:

• 常量字段值

OP_SWAP

public static final byte OP_SWAP

另请参阅:

• 常量字段值

OP_IADD

public static final byte OP_IADD

另请参阅:

• 常量字段值

OP_LADD

public static final byte OP_LADD

另请参阅:

• 常量字段值

OP_FADD

public static final byte OP_FADD

另请参阅:

• 常量字段值

OP_DADD

public static final byte OP_DADD

另请参阅:

• 常量字段值

OP_ISUB

public static final byte OP_ISUB

另请参阅:

• 常量字段值

OP_LSUB

public static final byte OP_LSUB

另请参阅:

• 常量字段值

OP_FSUB

public static final byte OP_FSUB

另请参阅:

• 常量字段值

OP_DSUB

public static final byte OP_DSUB

另请参阅:

• 常量字段值

OP_IMUL

public static final byte OP_IMUL

另请参阅:

• 常量字段值

OP_LMUL

public static final byte OP_LMUL

另请参阅:

• 常量字段值

OP_FMUL

public static final byte OP_FMUL

另请参阅:

• 常量字段值

OP_DMUL

public static final byte OP_DMUL

另请参阅:

• 常量字段值

OP_IDIV

public static final byte OP_IDIV

另请参阅:

• 常量字段值

OP_LDIV

public static final byte OP_LDIV

另请参阅:

• 常量字段值

OP_FDIV

public static final byte OP_FDIV

另请参阅:

• 常量字段值

OP_DDIV

public static final byte OP_DDIV

另请参阅:

• 常量字段值

OP_IREM

public static final byte OP_IREM

另请参阅:

• 常量字段值

OP_LREM

public static final byte OP_LREM

另请参阅:

• 常量字段值

OP_FREM

public static final byte OP_FREM

另请参阅:

• 常量字段值

OP_DREM

public static final byte OP_DREM

另请参阅:

• 常量字段值

OP_INEG

public static final byte OP_INEG

另请参阅:

• 常量字段值

OP_LNEG

public static final byte OP_LNEG

另请参阅:

• 常量字段值

OP_FNEG

public static final byte OP_FNEG

另请参阅:

• 常量字段值

OP_DNEG

public static final byte OP_DNEG

另请参阅:

• 常量字段值

OP_ISHL

public static final byte OP_ISHL

另请参阅:

• 常量字段值

OP_LSHL

public static final byte OP_LSHL

另请参阅:

• 常量字段值

OP_ISHR

public static final byte OP_ISHR

另请参阅:

• 常量字段值

OP_LSHR

public static final byte OP_LSHR

另请参阅:

• 常量字段值

OP_IUSHR

public static final byte OP_IUSHR

另请参阅:

• 常量字段值

OP_LUSHR

public static final byte OP_LUSHR

另请参阅:

• 常量字段值

OP_IAND

public static final byte OP_IAND

另请参阅:

• 常量字段值

OP_LAND

public static final byte OP_LAND

另请参阅:

• 常量字段值

OP_IOR

public static final byte OP_IOR

另请参阅:

• 常量字段值

OP_LOR

public static final byte OP_LOR

另请参阅:

• 常量字段值

OP_IXOR

public static final byte OP_IXOR

另请参阅:

• 常量字段值

OP_LXOR

public static final byte OP_LXOR

另请参阅:

• 常量字段值

OP_IINC

public static final byte OP_IINC

另请参阅:

• 常量字段值

OP_I2L

public static final byte OP_I2L

另请参阅:

• 常量字段值

OP_I2F

public static final byte OP_I2F

另请参阅:

• 常量字段值

OP_I2D

public static final byte OP_I2D

另请参阅:

• 常量字段值

OP_L2I

public static final byte OP_L2I

另请参阅:

• 常量字段值

OP_L2F

public static final byte OP_L2F

另请参阅:

• 常量字段值

OP_L2D

public static final byte OP_L2D

另请参阅:

• 常量字段值

OP_F2I

public static final byte OP_F2I

另请参阅:

• 常量字段值

OP_F2L

public static final byte OP_F2L

另请参阅:

• 常量字段值

OP_F2D

public static final byte OP_F2D

另请参阅:

• 常量字段值

OP_D2I

public static final byte OP_D2I

另请参阅:

• 常量字段值

OP_D2L

public static final byte OP_D2L

另请参阅:

• 常量字段值

OP_D2F

public static final byte OP_D2F

另请参阅:

• 常量字段值

OP_I2B

public static final byte OP_I2B

另请参阅:

• 常量字段值

OP_I2C

public static final byte OP_I2C

另请参阅:

• 常量字段值

OP_I2S

public static final byte OP_I2S

另请参阅:

• 常量字段值

OP_LCMP

public static final byte OP_LCMP

另请参阅:

• 常量字段值

OP_FCMPL

public static final byte OP_FCMPL

另请参阅:

• 常量字段值

OP_FCMPG

public static final byte OP_FCMPG

另请参阅:

• 常量字段值

OP_DCMPL

public static final byte OP_DCMPL

另请参阅:

• 常量字段值

OP_DCMPG

public static final byte OP_DCMPG

另请参阅:

• 常量字段值

OP_IFEQ

public static final byte OP_IFEQ

另请参阅:

• 常量字段值

OP_IFNE

public static final byte OP_IFNE

另请参阅:

• 常量字段值

OP_IFLT

public static final byte OP_IFLT

另请参阅:

• 常量字段值

OP_IFGE

public static final byte OP_IFGE

另请参阅:

• 常量字段值

OP_IFGT

public static final byte OP_IFGT

另请参阅:

• 常量字段值

OP_IFLE

public static final byte OP_IFLE

另请参阅:

• 常量字段值

OP_IFICMPEQ

public static final byte OP_IFICMPEQ

另请参阅:

• 常量字段值

OP_IFICMPNE

public static final byte OP_IFICMPNE

另请参阅:

• 常量字段值

OP_IFICMPLT

public static final byte OP_IFICMPLT

另请参阅:

• 常量字段值

OP_IFICMPGE

public static final byte OP_IFICMPGE

另请参阅:

• 常量字段值

OP_IFICMPGT

public static final byte OP_IFICMPGT

另请参阅:

• 常量字段值

OP_IFICMPLE

public static final byte OP_IFICMPLE

另请参阅:

• 常量字段值

OP_IFACMPEQ

public static final byte OP_IFACMPEQ

另请参阅:

• 常量字段值

OP_IFACMPNE

public static final byte OP_IFACMPNE

另请参阅:

• 常量字段值

OP_GOTO

public static final byte OP_GOTO

另请参阅:

• 常量字段值

OP_JSR

public static final byte OP_JSR

另请参阅:

• 常量字段值

OP_RET

public static final byte OP_RET

另请参阅:

• 常量字段值

OP_TABLESWITCH

public static final byte OP_TABLESWITCH

另请参阅:

• 常量字段值

OP_LOOKUPSWITCH

public static final byte OP_LOOKUPSWITCH

另请参阅:

• 常量字段值

OP_IRETURN

public static final byte OP_IRETURN

另请参阅:

• 常量字段值

OP_LRETURN

public static final byte OP_LRETURN

另请参阅:

• 常量字段值

OP_FRETURN

public static final byte OP_FRETURN

另请参阅:

• 常量字段值

OP_DRETURN

public static final byte OP_DRETURN

另请参阅:

• 常量字段值

OP_ARETURN

public static final byte OP_ARETURN

另请参阅:

• 常量字段值

OP_RETURN

public static final byte OP_RETURN

另请参阅:

• 常量字段值

OP_GETSTATIC

public static final byte OP_GETSTATIC

另请参阅:

• 常量字段值

OP_PUTSTATIC

public static final byte OP_PUTSTATIC

另请参阅:

• 常量字段值

OP_GETFIELD

public static final byte OP_GETFIELD

另请参阅:

• 常量字段值

OP_PUTFIELD

public static final byte OP_PUTFIELD

另请参阅:

• 常量字段值

OP_INVOKEVIRTUAL

public static final byte OP_INVOKEVIRTUAL

另请参阅:

• 常量字段值

OP_INVOKESPECIAL

public static final byte OP_INVOKESPECIAL

另请参阅:

• 常量字段值

OP_INVOKESTATIC

public static final byte OP_INVOKESTATIC

另请参阅:

• 常量字段值

OP_INVOKEINTERFACE

public static final byte OP_INVOKEINTERFACE

另请参阅:

• 常量字段值

OP_INVOKEDYNAMIC

public static final byte OP_INVOKEDYNAMIC

另请参阅:

• 常量字段值

OP_NEW

public static final byte OP_NEW

另请参阅:

• 常量字段值

OP_NEWARRAY

public static final byte OP_NEWARRAY

另请参阅:

• 常量字段值

OP_ANEWARRAY

public static final byte OP_ANEWARRAY

另请参阅:

• 常量字段值

OP_ARRAYLENGTH

public static final byte OP_ARRAYLENGTH

另请参阅:

• 常量字段值

OP_ATHROW

public static final byte OP_ATHROW

另请参阅:

• 常量字段值

OP_CHECKCAST

public static final byte OP_CHECKCAST

另请参阅:

• 常量字段值

OP_INSTANCEOF

public static final byte OP_INSTANCEOF

另请参阅:

• 常量字段值

OP_MONITORENTER

public static final byte OP_MONITORENTER

另请参阅:

• 常量字段值

OP_MONITOREXIT

public static final byte OP_MONITOREXIT

另请参阅:

• 常量字段值

OP_WIDE

public static final byte OP_WIDE

另请参阅:

• 常量字段值

OP_MULTIANEWARRAY

public static final byte OP_MULTIANEWARRAY

另请参阅:

• 常量字段值

OP_IFNULL

public static final byte OP_IFNULL

另请参阅:

• 常量字段值

OP_IFNONNULL

public static final byte OP_IFNONNULL

另请参阅:

• 常量字段值

OP_GOTO_W

public static final byte OP_GOTO_W

另请参阅:

• 常量字段值

OP_JSR_W

public static final byte OP_JSR_W

另请参阅:

• 常量字段值

NAMES

public static final String[] NAMES

ARRAY_T_BOOLEAN

public static final byte ARRAY_T_BOOLEAN

另请参阅:

• 常量字段值

ARRAY_T_CHAR

public static final byte ARRAY_T_CHAR

另请参阅:

• 常量字段值

ARRAY_T_FLOAT

public static final byte ARRAY_T_FLOAT

另请参阅:

• 常量字段值

ARRAY_T_DOUBLE

public static final byte ARRAY_T_DOUBLE

另请参阅:

• 常量字段值

ARRAY_T_BYTE

public static final byte ARRAY_T_BYTE

另请参阅:

• 常量字段值

ARRAY_T_SHORT

public static final byte ARRAY_T_SHORT

另请参阅:

• 常量字段值

ARRAY_T_INT

public static final byte ARRAY_T_INT

另请参阅:

• 常量字段值

ARRAY_T_LONG

public static final byte ARRAY_T_LONG

另请参阅:

• 常量字段值

opcode

public byte opcode

构造器详细资料

Instruction

public Instruction()

方法详细资料

equals

public abstract boolean equals(Object o)

覆盖:

equals 在类中 Object

hashCode

public abstract int hashCode()

覆盖:

hashCode 在类中 Object

canonicalOpcode

public byte canonicalOpcode()

Returns the canonical opcode of this instruction, i.e. typically the opcode whose extension has been removed.

actualOpcode

public byte actualOpcode()

Returns the actual opcode of this instruction, i.e. the opcode that is stored in the bytecode.

shrink

public abstract Instruction shrink()

Shrinks this instruction to its shortest possible form.

返回:

this instruction.

write

public final void write(CodeAttribute codeAttribute,
 int offset)

Writes the Instruction at the given offset in the given code attribute.

write

public void write(byte[] code,
 int offset)

Writes the Instruction at the given offset in the given code array.

isWide

protected boolean isWide()

Returns whether the instruction is wide, i.e. preceded by a wide opcode. With the current specifications, only variable instructions can be wide.

readInfo

protected abstract void readInfo(byte[] code,
 int offset)

Reads the data following the instruction opcode.

writeInfo

protected abstract void writeInfo(byte[] code,
 int offset)

Writes data following the instruction opcode.

length

public abstract int length(int offset)

Returns the length in bytes of the instruction.

accept

public abstract void accept(Clazz clazz,
 Method method,
 CodeAttribute codeAttribute,
 int offset,
 InstructionVisitor instructionVisitor)

Accepts the given visitor.

toString

public String toString(Clazz clazz,
 int offset)

Returns a description of the instruction, at the given offset.

toString

public String toString(int offset)

Returns a description of the instruction, at the given offset.

getName

public String getName()

Returns the name of the instruction.

mayThrowExceptions

public boolean mayThrowExceptions()

Returns whether the instruction may conservatively throw exceptions.

mayInstanceThrowExceptions

public boolean mayInstanceThrowExceptions(Clazz clazz)

Returns whether a particular instance of an instruction may throw exceptions.

isCategory2

public boolean isCategory2()

Returns whether the instruction is a Category 2 instruction. This means that it operates on long or double arguments.

stackPopCount

public int stackPopCount(Clazz clazz)

Returns the number of entries popped from the stack during the execution of the instruction.

stackPushCount

public int stackPushCount(Clazz clazz)

Returns the number of entries pushed onto the stack during the execution of the instruction.

stackEntryIndexBefore

public int stackEntryIndexBefore(Clazz clazz,
 int stackEntryIndexAfter)

Returns the stack entry index from which the specified stack entry is copied by a dup/swap/checkcast instruction, or -1 otherwise. Stack entry indices are counted from the top of the stack.

• checkcast: after: 0 (before: 0 ) -- not anymore
• dup: after: 0 0 (before: 0 )
• dup_x1: after: 0 1 0 (before: 1 0 )
• dup_x2: after: 0 2 1 0 (before: 2 1 0 )
• dup2: after: 1 0 1 0 (before: 1 0 )
• dup2_x1: after: 1 0 2 1 0 (before: 2 1 0 )
• dup2_x2: after: 1 0 3 2 1 0 (before: 3 2 1 0)

readByte

protected static int readByte(byte[] code,
 int offset)

readShort

protected static int readShort(byte[] code,
 int offset)

readInt

protected static int readInt(byte[] code,
 int offset)

readValue

protected static int readValue(byte[] code,
 int offset,
 int valueSize)

readSignedByte

protected static int readSignedByte(byte[] code,
 int offset)

readSignedShort

protected static int readSignedShort(byte[] code,
 int offset)

readSignedValue

protected static int readSignedValue(byte[] code,
 int offset,
 int valueSize)

writeByte

protected static void writeByte(byte[] code,
 int offset,
 int value)

writeShort

protected static void writeShort(byte[] code,
 int offset,
 int value)

writeInt

protected static void writeInt(byte[] code,
 int offset,
 int value)

writeValue

protected static void writeValue(byte[] code,
 int offset,
 int value,
 int valueSize)

writeSignedByte

protected static void writeSignedByte(byte[] code,
 int offset,
 int value)

writeSignedShort

protected static void writeSignedShort(byte[] code,
 int offset,
 int value)

writeSignedValue

protected static void writeSignedValue(byte[] code,
 int offset,
 int value,
 int valueSize)