OpenJDK 1.23 · java.lang.classfile.instruction.LoadInstruction

Preview

Second Preview of ClassFile API (JEP 466).

Programs can only use LoadInstruction when preview features are enabled.
Preview features may be removed in a future release, or upgraded to permanent features of the Java platform.

Models a local variable load instruction in the code array of a Code attribute. Corresponding opcodes will have a kind of Opcode.Kind#LOAD. Delivered as a CodeElement when traversing the elements of a CodeModel.

Method Summary

Modifier and Type	Method and Description
public static LoadInstruction	Returns: a local variable load instruction of(TypeKind the type of the value to be loaded kind, int the local variable slot to load from slot) Returns a local variable load instruction.
public static LoadInstruction	Returns: a local variable load instruction of(Opcode the opcode for the specific type of load instruction, which must be of kind `Opcode.Kind#LOAD` op, int the local variable slot to load from slot) Returns a local variable load instruction.
public int	Returns: the local variable slot to load from slot() Returns the local variable slot to load from.
public TypeKind	Returns: the type of the value to be loaded typeKind() Returns the type of the value to be loaded.

Inherited from java.lang.classfile.Instruction:: opcode sizeInBytes

Method Detail

of	back to summary
public static LoadInstruction of(TypeKind kind, int slot) Returns a local variable load instruction. Parameters kind:TypeKind the type of the value to be loaded slot:int the local variable slot to load from Returns:LoadInstruction a local variable load instruction

back to summary

public static LoadInstruction of(TypeKind kind, int slot)

Returns a local variable load instruction.

Parameters

kind:TypeKind: the type of the value to be loaded
slot:int: the local variable slot to load from

Returns:LoadInstruction

a local variable load instruction

of back to summary

of	back to summary
public static LoadInstruction of(Opcode op, int slot) Returns a local variable load instruction. Parameters op:Opcode the opcode for the specific type of load instruction, which must be of kind `Opcode.Kind#LOAD` slot:int the local variable slot to load from Returns:LoadInstruction a local variable load instruction Exceptions IllegalArgumentException: if the opcode kind is not `Opcode.Kind#LOAD`.

public static LoadInstruction of(Opcode op, int slot)

Returns a local variable load instruction.

Parameters

op:Opcode: the opcode for the specific type of load instruction, which must be of kind Opcode.Kind#LOAD
slot:int: the local variable slot to load from

Returns:LoadInstruction

a local variable load instruction

Exceptions

IllegalArgumentException:: if the opcode kind is not Opcode.Kind#LOAD.

slot	back to summary
public int slot() Returns the local variable slot to load from. Returns:int the local variable slot to load from

slot

back to summary

public int slot()

Returns the local variable slot to load from.

Returns:int: the local variable slot to load from

typeKind	back to summary
public TypeKind typeKind() Returns the type of the value to be loaded. Returns:TypeKind the type of the value to be loaded

typeKind

back to summary

public TypeKind typeKind()

Returns the type of the value to be loaded.

Returns:TypeKind: the type of the value to be loaded

public sealed Interface LoadInstruction

Method Summary

Method Detail