Module java.base

Package java.lang.classfile^PREVIEW

Enum Class Opcode

java.lang.Object

java.lang.Enum<Opcode^PREVIEW>

java.lang.classfile.Opcode

All Implemented Interfaces:

Serializable, Comparable<OpcodePREVIEW>, Constable

public enum Opcode
extends Enum<OpcodePREVIEW>

Opcode is a preview API of the Java platform.

Programs can only use Opcode when preview features are enabled.

Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.

Describes the opcodes of the JVM instruction set, as described in 6.5. As well as a number of pseudo-instructions that may be encountered when traversing the instructions of a method.

Since:

22

See Also:

• Instruction^PREVIEW
• PseudoInstruction^PREVIEW

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	Opcode.KindPREVIEW	Preview. Kinds of opcodes.

Nested classes/interfaces declared in class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
AALOAD	Load reference from array
AASTORE	Store into reference array
ACONST_NULL	Push null
ALOAD	Load reference from local variable
ALOAD_0	Load reference from local variable 0
ALOAD_1	Load reference from local variable 1
ALOAD_2	Load reference from local variable 2
ALOAD_3	Load reference from local variable 3
ALOAD_W	Load reference from local variable (wide index)
ANEWARRAY	Create new array of reference
ARETURN	Return reference from method
ARRAYLENGTH	Get length of array
ASTORE	Store reference into local variable
ASTORE_0	Store reference into local variable 0
ASTORE_1	Store reference into local variable 1
ASTORE_2	Store reference into local variable 2
ASTORE_3	Store reference into local variable 3
ASTORE_W	Store reference into local variable (wide index)
ATHROW	Throw exception or error
BALOAD	Load byte from array
BASTORE	Store into byte array
BIPUSH	Push byte
CALOAD	Load char from array
CASTORE	Store into char array
CHECKCAST	Check whether object is of given type
D2F	Convert double to float
D2I	Convert double to int
D2L	Convert double to long
DADD	Add double
DALOAD	Load double from array
DASTORE	Store into double array
DCMPG	Compare double
DCMPL	Compare double
DCONST_0	Push double constant 0
DCONST_1	Push double constant 1
DDIV	Divide double
DLOAD	Load double from local variable
DLOAD_0	Load double from local variable 0
DLOAD_1	Load double from local variable 1
DLOAD_2	Load double from local variable 2
DLOAD_3	Load double from local variable 3
DLOAD_W	Load double from local variable (wide index)
DMUL	Multiply double
DNEG	Negate double
DREM	Remainder double
DRETURN	Return double from method
DSTORE	Store double into local variable
DSTORE_0	Store double into local variable 0
DSTORE_1	Store double into local variable 1
DSTORE_2	Store double into local variable 2
DSTORE_3	Store double into local variable 3
DSTORE_W	Store double into local variable (wide index)
DSUB	Subtract double
DUP	Duplicate the top operand stack value
DUP_X1	Duplicate the top operand stack value and insert two values down
DUP_X2	Duplicate the top operand stack value and insert two or three values down
DUP2	Duplicate the top one or two operand stack values
DUP2_X1	Duplicate the top one or two operand stack values and insert two or three values down
DUP2_X2	Duplicate the top one or two operand stack values and insert two, three, or four values down
F2D	Convert float to double
F2I	Convert float to int
F2L	Convert float to long
FADD	Add float
FALOAD	Load float from array
FASTORE	Store into float array
FCMPG	Compare float
FCMPL	Compare float
FCONST_0	Push float constant 0
FCONST_1	Push float constant 1
FCONST_2	Push float constant 2
FDIV	Divide float
FLOAD	Load float from local variable
FLOAD_0	Load float from local variable 0
FLOAD_1	Load float from local variable 1
FLOAD_2	Load float from local variable 2
FLOAD_3	Load float from local variable 3
FLOAD_W	Load float from local variable (wide index)
FMUL	Multiply float
FNEG	Negate float
FREM	Remainder float
FRETURN	Return float from method
FSTORE	Store float into local variable
FSTORE_0	Store float into local variable 0
FSTORE_1	Store float into local variable 1
FSTORE_2	Store float into local variable 2
FSTORE_3	Store float into local variable 3
FSTORE_W	Store float into local variable (wide index)
FSUB	Subtract float
GETFIELD	Fetch field from object
GETSTATIC	Get static field from class
GOTO	Branch always
GOTO_W	Branch always (wide index)
I2B	Convert int to byte
I2C	Convert int to char
I2D	Convert int to double
I2F	Convert int to float
I2L	Convert int to long
I2S	Convert int to short
IADD	Add int
IALOAD	Load int from array
IAND	Boolean AND int
IASTORE	Store into int array
ICONST_0	Push int constant 0
ICONST_1	Push int constant 1
ICONST_2	Push int constant 2
ICONST_3	Push int constant 3
ICONST_4	Push int constant 4
ICONST_5	Push int constant 5
ICONST_M1	Push int constant -1
IDIV	Divide int
IF_ACMPEQ	Branch if reference comparison succeeds
IF_ACMPNE	Branch if reference comparison succeeds
IF_ICMPEQ	Branch if int comparison succeeds
IF_ICMPGE	Branch if int comparison succeeds
IF_ICMPGT	Branch if int comparison succeeds
IF_ICMPLE	Branch if int comparison succeeds
IF_ICMPLT	Branch if int comparison succeeds
IF_ICMPNE	Branch if int comparison succeeds
IFEQ	Branch if int comparison with zero succeeds
IFGE	Branch if int comparison with zero succeeds
IFGT	Branch if int comparison with zero succeeds
IFLE	Branch if int comparison with zero succeeds
IFLT	Branch if int comparison with zero succeeds
IFNE	Branch if int comparison with zero succeeds
IFNONNULL	Branch if reference not null
IFNULL	Branch if reference is null
IINC	Increment local variable by constant
IINC_W	Increment local variable by constant (wide index)
ILOAD	Load int from local variable
ILOAD_0	Load int from local variable 0
ILOAD_1	Load int from local variable 1
ILOAD_2	Load int from local variable 2
ILOAD_3	Load int from local variable3
ILOAD_W	Load int from local variable (wide index)
IMUL	Multiply int
INEG	Negate int
INSTANCEOF	Determine if object is of given type
INVOKEDYNAMIC	Invoke a dynamically-computed call site
INVOKEINTERFACE	Invoke interface method
INVOKESPECIAL	Invoke instance method; direct invocation of instance initialization methods and methods of the current class and its supertypes
INVOKESTATIC	Invoke a class (static) method
INVOKEVIRTUAL	Invoke instance method; dispatch based on class
IOR	Boolean OR int
IREM	Remainder int
IRETURN	Return int from method
ISHL	Shift left int
ISHR	Shift right int
ISTORE	Store int into local variable
ISTORE_0	Store int into local variable 0
ISTORE_1	Store int into local variable 1
ISTORE_2	Store int into local variable 2
ISTORE_3	Store int into local variable 3
ISTORE_W	Store int into local variable (wide index)
ISUB	Subtract int
IUSHR	Logical shift right int
IXOR	Boolean XOR int
JSR	Jump subroutine is discontinued opcode
JSR_W	Jump subroutine (wide index) is discontinued opcode
L2D	Convert long to double
L2F	Convert long to float
L2I	Convert long to int
LADD	Add long
LALOAD	Load long from array
LAND	Boolean AND long
LASTORE	Store into long array
LCMP	Compare long
LCONST_0	Push long constant 0
LCONST_1	Push long constant 1
LDC	Push item from run-time constant pool
LDC_W	Push item from run-time constant pool (wide index)
LDC2_W	Push long or double from run-time constant pool (wide index)
LDIV	Divide long
LLOAD	Load long from local variable
LLOAD_0	Load long from local variable 0
LLOAD_1	Load long from local variable 1
LLOAD_2	Load long from local variable 2
LLOAD_3	Load long from local variable 3
LLOAD_W	Load long from local variable (wide index)
LMUL	Multiply long
LNEG	Negate long
LOOKUPSWITCH	Access jump table by key match and jump
LOR	Boolean OR long
LREM	Remainder long
LRETURN	Return long from method
LSHL	Shift left long
LSHR	Shift right long
LSTORE	Store long into local variable
LSTORE_0	Store long into local variable 0
LSTORE_1	Store long into local variable 1
LSTORE_2	Store long into local variable 2
LSTORE_3	Store long into local variable 3
LSTORE_W	Store long into local variable (wide index)
LSUB	Subtract long
LUSHR	Logical shift right long
LXOR	Boolean XOR long
MONITORENTER	Enter monitor for object
MONITOREXIT	Exit monitor for object
MULTIANEWARRAY	Create new multidimensional array
NEW	Create new object
NEWARRAY	Create new array
NOP	Do nothing
POP	Pop the top operand stack value
POP2	Pop the top one or two operand stack values
PUTFIELD	Set field in object
PUTSTATIC	Set static field in class
RET	Return from subroutine is discontinued opcode
RET_W	Return from subroutine (wide index) is discontinued opcode
RETURN	Return void from method
SALOAD	Load short from array
SASTORE	Store into short array
SIPUSH	Push short
SWAP	Swap the top two operand stack values
TABLESWITCH	Access jump table by index and jump

Method Summary

Modifier and Type	Method	Description
int	bytecode()	Returns bytecode.
ConstantDesc	constantValue()	Returns constant value for constant instructions, or null otherwise.
boolean	isUnconditionalBranch()	Returns true if the instruction represents an unconditional branch.
boolean	isWide()	Returns true if the instruction has extended local variable index by additional bytes.
Opcode.KindPREVIEW	kind()	Returns instruction kind.
TypeKindPREVIEW	primaryTypeKind()	Returns primary type kind for instructions operating with at least one type, or null otherwise.
TypeKindPREVIEW	secondaryTypeKind()	Returns secondary type kind for instructions operating with two types, or null otherwise.
int	sizeIfFixed()	Returns size of the instruction if fixed, or -1 otherwise.
int	slot()	Returns local variable slot for instructions operating with local variable, or -1 otherwise.
static OpcodePREVIEW	valueOf(String name)	Returns the enum constant of this class with the specified name.
static OpcodePREVIEW[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods declared in class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods declared in class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

NOP

public static final OpcodePREVIEW NOP

Do nothing

ACONST_NULL

public static final OpcodePREVIEW ACONST_NULL

Push null

ICONST_M1

public static final OpcodePREVIEW ICONST_M1

Push int constant -1

ICONST_0

public static final OpcodePREVIEW ICONST_0

Push int constant 0

ICONST_1

public static final OpcodePREVIEW ICONST_1

Push int constant 1

ICONST_2

public static final OpcodePREVIEW ICONST_2

Push int constant 2

ICONST_3

public static final OpcodePREVIEW ICONST_3

Push int constant 3

ICONST_4

public static final OpcodePREVIEW ICONST_4

Push int constant 4

ICONST_5

public static final OpcodePREVIEW ICONST_5

Push int constant 5

LCONST_0

public static final OpcodePREVIEW LCONST_0

Push long constant 0

LCONST_1

public static final OpcodePREVIEW LCONST_1

Push long constant 1

FCONST_0

public static final OpcodePREVIEW FCONST_0

Push float constant 0

FCONST_1

public static final OpcodePREVIEW FCONST_1

Push float constant 1

FCONST_2

public static final OpcodePREVIEW FCONST_2

Push float constant 2

DCONST_0

public static final OpcodePREVIEW DCONST_0

Push double constant 0

DCONST_1

public static final OpcodePREVIEW DCONST_1

Push double constant 1

BIPUSH

public static final OpcodePREVIEW BIPUSH

Push byte

SIPUSH

public static final OpcodePREVIEW SIPUSH

Push short

LDC

public static final OpcodePREVIEW LDC

Push item from run-time constant pool

LDC_W

public static final OpcodePREVIEW LDC_W

Push item from run-time constant pool (wide index)

LDC2_W

public static final OpcodePREVIEW LDC2_W

Push long or double from run-time constant pool (wide index)

ILOAD

public static final OpcodePREVIEW ILOAD

Load int from local variable

LLOAD

public static final OpcodePREVIEW LLOAD

Load long from local variable

FLOAD

public static final OpcodePREVIEW FLOAD

Load float from local variable

DLOAD

public static final OpcodePREVIEW DLOAD

Load double from local variable

ALOAD

public static final OpcodePREVIEW ALOAD

Load reference from local variable

ILOAD_0

public static final OpcodePREVIEW ILOAD_0

Load int from local variable 0

ILOAD_1

public static final OpcodePREVIEW ILOAD_1

Load int from local variable 1

ILOAD_2

public static final OpcodePREVIEW ILOAD_2

Load int from local variable 2

ILOAD_3

public static final OpcodePREVIEW ILOAD_3

Load int from local variable3

LLOAD_0

public static final OpcodePREVIEW LLOAD_0

Load long from local variable 0

LLOAD_1

public static final OpcodePREVIEW LLOAD_1

Load long from local variable 1

LLOAD_2

public static final OpcodePREVIEW LLOAD_2

Load long from local variable 2

LLOAD_3

public static final OpcodePREVIEW LLOAD_3

Load long from local variable 3

FLOAD_0

public static final OpcodePREVIEW FLOAD_0

Load float from local variable 0

FLOAD_1

public static final OpcodePREVIEW FLOAD_1

Load float from local variable 1

FLOAD_2

public static final OpcodePREVIEW FLOAD_2

Load float from local variable 2

FLOAD_3

public static final OpcodePREVIEW FLOAD_3

Load float from local variable 3

DLOAD_0

public static final OpcodePREVIEW DLOAD_0

Load double from local variable 0

DLOAD_1

public static final OpcodePREVIEW DLOAD_1

Load double from local variable 1

DLOAD_2

public static final OpcodePREVIEW DLOAD_2

Load double from local variable 2

DLOAD_3

public static final OpcodePREVIEW DLOAD_3

Load double from local variable 3

ALOAD_0

public static final OpcodePREVIEW ALOAD_0

Load reference from local variable 0

ALOAD_1

public static final OpcodePREVIEW ALOAD_1

Load reference from local variable 1

ALOAD_2

public static final OpcodePREVIEW ALOAD_2

Load reference from local variable 2

ALOAD_3

public static final OpcodePREVIEW ALOAD_3

Load reference from local variable 3

IALOAD

public static final OpcodePREVIEW IALOAD

Load int from array

LALOAD

public static final OpcodePREVIEW LALOAD

Load long from array

FALOAD

public static final OpcodePREVIEW FALOAD

Load float from array

DALOAD

public static final OpcodePREVIEW DALOAD

Load double from array

AALOAD

public static final OpcodePREVIEW AALOAD

Load reference from array

BALOAD

public static final OpcodePREVIEW BALOAD

Load byte from array

CALOAD

public static final OpcodePREVIEW CALOAD

Load char from array

SALOAD

public static final OpcodePREVIEW SALOAD

Load short from array

ISTORE

public static final OpcodePREVIEW ISTORE

Store int into local variable

LSTORE

public static final OpcodePREVIEW LSTORE

Store long into local variable

FSTORE

public static final OpcodePREVIEW FSTORE

Store float into local variable

DSTORE

public static final OpcodePREVIEW DSTORE

Store double into local variable

ASTORE

public static final OpcodePREVIEW ASTORE

Store reference into local variable

ISTORE_0

public static final OpcodePREVIEW ISTORE_0

Store int into local variable 0

ISTORE_1

public static final OpcodePREVIEW ISTORE_1

Store int into local variable 1

ISTORE_2

public static final OpcodePREVIEW ISTORE_2

Store int into local variable 2

ISTORE_3

public static final OpcodePREVIEW ISTORE_3

Store int into local variable 3

LSTORE_0

public static final OpcodePREVIEW LSTORE_0

Store long into local variable 0

LSTORE_1

public static final OpcodePREVIEW LSTORE_1

Store long into local variable 1

LSTORE_2

public static final OpcodePREVIEW LSTORE_2

Store long into local variable 2

LSTORE_3

public static final OpcodePREVIEW LSTORE_3

Store long into local variable 3

FSTORE_0

public static final OpcodePREVIEW FSTORE_0

Store float into local variable 0

FSTORE_1

public static final OpcodePREVIEW FSTORE_1

Store float into local variable 1

FSTORE_2

public static final OpcodePREVIEW FSTORE_2

Store float into local variable 2

FSTORE_3

public static final OpcodePREVIEW FSTORE_3

Store float into local variable 3

DSTORE_0

public static final OpcodePREVIEW DSTORE_0

Store double into local variable 0

DSTORE_1

public static final OpcodePREVIEW DSTORE_1

Store double into local variable 1

DSTORE_2

public static final OpcodePREVIEW DSTORE_2

Store double into local variable 2

DSTORE_3

public static final OpcodePREVIEW DSTORE_3

Store double into local variable 3

ASTORE_0

public static final OpcodePREVIEW ASTORE_0

Store reference into local variable 0

ASTORE_1

public static final OpcodePREVIEW ASTORE_1

Store reference into local variable 1

ASTORE_2

public static final OpcodePREVIEW ASTORE_2

Store reference into local variable 2

ASTORE_3

public static final OpcodePREVIEW ASTORE_3

Store reference into local variable 3

IASTORE

public static final OpcodePREVIEW IASTORE

Store into int array

LASTORE

public static final OpcodePREVIEW LASTORE

Store into long array

FASTORE

public static final OpcodePREVIEW FASTORE

Store into float array

DASTORE

public static final OpcodePREVIEW DASTORE

Store into double array

AASTORE

public static final OpcodePREVIEW AASTORE

Store into reference array

BASTORE

public static final OpcodePREVIEW BASTORE

Store into byte array

CASTORE

public static final OpcodePREVIEW CASTORE

Store into char array

SASTORE

public static final OpcodePREVIEW SASTORE

Store into short array

POP

public static final OpcodePREVIEW POP

Pop the top operand stack value

POP2

public static final OpcodePREVIEW POP2

Pop the top one or two operand stack values

DUP

public static final OpcodePREVIEW DUP

Duplicate the top operand stack value

DUP_X1

public static final OpcodePREVIEW DUP_X1

Duplicate the top operand stack value and insert two values down

DUP_X2

public static final OpcodePREVIEW DUP_X2

Duplicate the top operand stack value and insert two or three values down

DUP2

public static final OpcodePREVIEW DUP2

Duplicate the top one or two operand stack values

DUP2_X1

public static final OpcodePREVIEW DUP2_X1

Duplicate the top one or two operand stack values and insert two or three values down

DUP2_X2

public static final OpcodePREVIEW DUP2_X2

Duplicate the top one or two operand stack values and insert two, three, or four values down

SWAP

public static final OpcodePREVIEW SWAP

Swap the top two operand stack values

IADD

public static final OpcodePREVIEW IADD

Add int

LADD

public static final OpcodePREVIEW LADD

Add long

FADD

public static final OpcodePREVIEW FADD

Add float

DADD

public static final OpcodePREVIEW DADD

Add double

ISUB

public static final OpcodePREVIEW ISUB

Subtract int

LSUB

public static final OpcodePREVIEW LSUB

Subtract long

FSUB

public static final OpcodePREVIEW FSUB

Subtract float

DSUB

public static final OpcodePREVIEW DSUB

Subtract double

IMUL

public static final OpcodePREVIEW IMUL

Multiply int

LMUL

public static final OpcodePREVIEW LMUL

Multiply long

FMUL

public static final OpcodePREVIEW FMUL

Multiply float

DMUL

public static final OpcodePREVIEW DMUL

Multiply double

IDIV

public static final OpcodePREVIEW IDIV

Divide int

LDIV

public static final OpcodePREVIEW LDIV

Divide long

FDIV

public static final OpcodePREVIEW FDIV

Divide float

DDIV

public static final OpcodePREVIEW DDIV

Divide double

IREM

public static final OpcodePREVIEW IREM

Remainder int

LREM

public static final OpcodePREVIEW LREM

Remainder long

FREM

public static final OpcodePREVIEW FREM

Remainder float

DREM

public static final OpcodePREVIEW DREM

Remainder double

INEG

public static final OpcodePREVIEW INEG

Negate int

LNEG

public static final OpcodePREVIEW LNEG

Negate long

FNEG

public static final OpcodePREVIEW FNEG

Negate float

DNEG

public static final OpcodePREVIEW DNEG

Negate double

ISHL

public static final OpcodePREVIEW ISHL

Shift left int

LSHL

public static final OpcodePREVIEW LSHL

Shift left long

ISHR

public static final OpcodePREVIEW ISHR

Shift right int

LSHR

public static final OpcodePREVIEW LSHR

Shift right long

IUSHR

public static final OpcodePREVIEW IUSHR

Logical shift right int

LUSHR

public static final OpcodePREVIEW LUSHR

Logical shift right long

IAND

public static final OpcodePREVIEW IAND

Boolean AND int

LAND

public static final OpcodePREVIEW LAND

Boolean AND long

IOR

public static final OpcodePREVIEW IOR

Boolean OR int

LOR

public static final OpcodePREVIEW LOR

Boolean OR long

IXOR

public static final OpcodePREVIEW IXOR

Boolean XOR int

LXOR

public static final OpcodePREVIEW LXOR

Boolean XOR long

IINC

public static final OpcodePREVIEW IINC

Increment local variable by constant

I2L

public static final OpcodePREVIEW I2L

Convert int to long

I2F

public static final OpcodePREVIEW I2F

Convert int to float

I2D

public static final OpcodePREVIEW I2D

Convert int to double

L2I

public static final OpcodePREVIEW L2I

Convert long to int

L2F

public static final OpcodePREVIEW L2F

Convert long to float

L2D

public static final OpcodePREVIEW L2D

Convert long to double

F2I

public static final OpcodePREVIEW F2I

Convert float to int

F2L

public static final OpcodePREVIEW F2L

Convert float to long

F2D

public static final OpcodePREVIEW F2D

Convert float to double

D2I

public static final OpcodePREVIEW D2I

Convert double to int

D2L

public static final OpcodePREVIEW D2L

Convert double to long

D2F

public static final OpcodePREVIEW D2F

Convert double to float

I2B

public static final OpcodePREVIEW I2B

Convert int to byte

I2C

public static final OpcodePREVIEW I2C

Convert int to char

I2S

public static final OpcodePREVIEW I2S

Convert int to short

LCMP

public static final OpcodePREVIEW LCMP

Compare long

FCMPL

public static final OpcodePREVIEW FCMPL

Compare float

FCMPG

public static final OpcodePREVIEW FCMPG

Compare float

DCMPL

public static final OpcodePREVIEW DCMPL

Compare double

DCMPG

public static final OpcodePREVIEW DCMPG

Compare double

IFEQ

public static final OpcodePREVIEW IFEQ

Branch if int comparison with zero succeeds

IFNE

public static final OpcodePREVIEW IFNE

Branch if int comparison with zero succeeds

IFLT

public static final OpcodePREVIEW IFLT

Branch if int comparison with zero succeeds

IFGE

public static final OpcodePREVIEW IFGE

Branch if int comparison with zero succeeds

IFGT

public static final OpcodePREVIEW IFGT

Branch if int comparison with zero succeeds

IFLE

public static final OpcodePREVIEW IFLE

Branch if int comparison with zero succeeds

IF_ICMPEQ

public static final OpcodePREVIEW IF_ICMPEQ

Branch if int comparison succeeds

IF_ICMPNE

public static final OpcodePREVIEW IF_ICMPNE

Branch if int comparison succeeds

IF_ICMPLT

public static final OpcodePREVIEW IF_ICMPLT

Branch if int comparison succeeds

IF_ICMPGE

public static final OpcodePREVIEW IF_ICMPGE

Branch if int comparison succeeds

IF_ICMPGT

public static final OpcodePREVIEW IF_ICMPGT

Branch if int comparison succeeds

IF_ICMPLE

public static final OpcodePREVIEW IF_ICMPLE

Branch if int comparison succeeds

IF_ACMPEQ

public static final OpcodePREVIEW IF_ACMPEQ

Branch if reference comparison succeeds

IF_ACMPNE

public static final OpcodePREVIEW IF_ACMPNE

Branch if reference comparison succeeds

GOTO

public static final OpcodePREVIEW GOTO

Branch always

JSR

public static final OpcodePREVIEW JSR

Jump subroutine is discontinued opcode

See Also:

• DiscontinuedInstruction^PREVIEW

RET

public static final OpcodePREVIEW RET

Return from subroutine is discontinued opcode

See Also:

• DiscontinuedInstruction^PREVIEW

TABLESWITCH

public static final OpcodePREVIEW TABLESWITCH

Access jump table by index and jump

LOOKUPSWITCH

public static final OpcodePREVIEW LOOKUPSWITCH

Access jump table by key match and jump

IRETURN

public static final OpcodePREVIEW IRETURN

Return int from method

LRETURN

public static final OpcodePREVIEW LRETURN

Return long from method

FRETURN

public static final OpcodePREVIEW FRETURN

Return float from method

DRETURN

public static final OpcodePREVIEW DRETURN

Return double from method

ARETURN

public static final OpcodePREVIEW ARETURN

Return reference from method

RETURN

public static final OpcodePREVIEW RETURN

Return void from method

GETSTATIC

public static final OpcodePREVIEW GETSTATIC

Get static field from class

PUTSTATIC

public static final OpcodePREVIEW PUTSTATIC

Set static field in class

GETFIELD

public static final OpcodePREVIEW GETFIELD

Fetch field from object

PUTFIELD

public static final OpcodePREVIEW PUTFIELD

Set field in object

INVOKEVIRTUAL

public static final OpcodePREVIEW INVOKEVIRTUAL

Invoke instance method; dispatch based on class

INVOKESPECIAL

public static final OpcodePREVIEW INVOKESPECIAL

Invoke instance method; direct invocation of instance initialization methods and methods of the current class and its supertypes

INVOKESTATIC

public static final OpcodePREVIEW INVOKESTATIC

Invoke a class (static) method

INVOKEINTERFACE

public static final OpcodePREVIEW INVOKEINTERFACE

Invoke interface method

INVOKEDYNAMIC

public static final OpcodePREVIEW INVOKEDYNAMIC

Invoke a dynamically-computed call site

NEW

public static final OpcodePREVIEW NEW

Create new object

NEWARRAY

public static final OpcodePREVIEW NEWARRAY

Create new array

ANEWARRAY

public static final OpcodePREVIEW ANEWARRAY

Create new array of reference

ARRAYLENGTH

public static final OpcodePREVIEW ARRAYLENGTH

Get length of array

ATHROW

public static final OpcodePREVIEW ATHROW

Throw exception or error

CHECKCAST

public static final OpcodePREVIEW CHECKCAST

Check whether object is of given type

INSTANCEOF

public static final OpcodePREVIEW INSTANCEOF

Determine if object is of given type

MONITORENTER

public static final OpcodePREVIEW MONITORENTER

Enter monitor for object

MONITOREXIT

public static final OpcodePREVIEW MONITOREXIT

Exit monitor for object

MULTIANEWARRAY

public static final OpcodePREVIEW MULTIANEWARRAY

Create new multidimensional array

IFNULL

public static final OpcodePREVIEW IFNULL

Branch if reference is null

IFNONNULL

public static final OpcodePREVIEW IFNONNULL

Branch if reference not null

GOTO_W

public static final OpcodePREVIEW GOTO_W

Branch always (wide index)

JSR_W

public static final OpcodePREVIEW JSR_W

Jump subroutine (wide index) is discontinued opcode

See Also:

• DiscontinuedInstruction^PREVIEW

ILOAD_W

public static final OpcodePREVIEW ILOAD_W

Load int from local variable (wide index)

LLOAD_W

public static final OpcodePREVIEW LLOAD_W

Load long from local variable (wide index)

FLOAD_W

public static final OpcodePREVIEW FLOAD_W

Load float from local variable (wide index)

DLOAD_W

public static final OpcodePREVIEW DLOAD_W

Load double from local variable (wide index)

ALOAD_W

public static final OpcodePREVIEW ALOAD_W

Load reference from local variable (wide index)

ISTORE_W

public static final OpcodePREVIEW ISTORE_W

Store int into local variable (wide index)

LSTORE_W

public static final OpcodePREVIEW LSTORE_W

Store long into local variable (wide index)

FSTORE_W

public static final OpcodePREVIEW FSTORE_W

Store float into local variable (wide index)

DSTORE_W

public static final OpcodePREVIEW DSTORE_W

Store double into local variable (wide index)

ASTORE_W

public static final OpcodePREVIEW ASTORE_W

Store reference into local variable (wide index)

RET_W

public static final OpcodePREVIEW RET_W

Return from subroutine (wide index) is discontinued opcode

See Also:

• DiscontinuedInstruction^PREVIEW

IINC_W

public static final OpcodePREVIEW IINC_W

Increment local variable by constant (wide index)

Method Details

values

public static OpcodePREVIEW[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

an array containing the constants of this enum class, in the order they are declared

valueOf

public static OpcodePREVIEW valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - if the argument is null

bytecode

public int bytecode()

Returns bytecode.

Returns:

bytecode

isWide

public boolean isWide()

Returns true if the instruction has extended local variable index by additional bytes.

Returns:

true if the instruction has extended local variable index by additional bytes

sizeIfFixed

public int sizeIfFixed()

Returns size of the instruction if fixed, or -1 otherwise.

Returns:

size of the instruction if fixed, or -1 otherwise

kind

public Opcode.KindPREVIEW kind()

Returns instruction kind.

Returns:

instruction kind

primaryTypeKind

public TypeKindPREVIEW primaryTypeKind()

Returns primary type kind for instructions operating with at least one type, or null otherwise.

Returns:

primary type kind for instructions operating with at least one type, or null otherwise

secondaryTypeKind

public TypeKindPREVIEW secondaryTypeKind()

Returns secondary type kind for instructions operating with two types, or null otherwise.

Returns:

secondary type kind for instructions operating with two types, or null otherwise

slot

public int slot()

Returns local variable slot for instructions operating with local variable, or -1 otherwise.

Returns:

local variable slot for instructions operating with local variable, or -1 otherwise

constantValue

public ConstantDesc constantValue()

Returns constant value for constant instructions, or null otherwise.

Returns:

constant value for constant instructions, or null otherwise

isUnconditionalBranch

public boolean isUnconditionalBranch()

Returns true if the instruction represents an unconditional branch.

Returns:

true if the instruction represents an unconditional branch