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/OpenJDK 25

Interface LineNumber

All Superinterfaces:
ClassFileElement, CodeElement, PseudoInstruction
public sealed interface LineNumber extends PseudoInstruction
A pseudo-instruction which indicates the code for a given line number starts after the current position in a Code attribute. This models a single entry in the LineNumberTable attribute. Delivered as a CodeElement during traversal of the elements of a CodeModel, according to the setting of the ClassFile.LineNumbersOption option.

A line number entry is composite: 

LineNumber(int line)

Another model, LineNumberInfo, also models a line number entry; it has no dependency on a CodeModel and represents of bci values as ints instead of order of pseudo-instructions in the elements of a CodeModel, and is used as components of a LineNumberTableAttribute.

API Note:
Line numbers are represented with custom pseudo-instructions to avoid using labels, which usually indicate branching targets for the control flow.
Since:
24
See Also:

Method Summary

Modifier and Type Method Description
int line()
Returns the line number.
static LineNumber of(int line)
Returns a line number pseudo-instruction.

Method Details

line

int line()
Returns the line number.
Returns:
the line number

of

static LineNumber of(int line)
Returns a line number pseudo-instruction.
Parameters:
line - the line number
Returns:
a line number pseudo-instruction

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Documentation extracted from Debian's OpenJDK Development Kit package.
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https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/lang/classfile/instruction/LineNumber.html