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/OpenJDK 25

Interface IncrementInstruction

All Superinterfaces:
ClassFileElement, CodeElement, Instruction
public sealed interface IncrementInstruction extends Instruction
Models a local variable increment instruction in the code array of a Code attribute. Corresponding opcodes have a kind of Opcode.Kind.INCREMENT. Delivered as a CodeElement when traversing the elements of a CodeModel.

A local variable increment instruction is composite: 

IncrementInstruction(
    int slot,
    int constant
)
where
  • slot must be within [0, 65535].
  • constant must be within [-32768, 32767].
See Java Virtual Machine Specification:
6.5.iinc iinc
Since:
24
See Also:

Method Summary

Modifier and Type Method Description
int constant()
Returns the value to increment by.
static IncrementInstruction of(int slot, int constant)
Returns an increment instruction.
int slot()
Returns the local variable slot to increment.

Methods declared in interface Instruction

opcode, sizeInBytes

Method Details

slot

int slot()
Returns the local variable slot to increment.
Returns:
the local variable slot to increment

constant

int constant()
Returns the value to increment by.
Returns:
the value to increment by

of

static IncrementInstruction of(int slot, int constant)
Returns an increment instruction.
  • slot must be within [0, 65535].
  • constant must be within [-32768, 32767].
Parameters:
slot - the local variable slot to increment
constant - the value to increment by
Returns:
an increment instruction
Throws:
IllegalArgumentException - if slot or constant is out of range

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Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/classfile/instruction/IncrementInstruction.html