Module java.base

Package java.lang.classfile^PREVIEW

Interface TypeAnnotation.LocalVarTargetInfo

Enclosing interface:

TypeAnnotationPREVIEW

public static sealed interface TypeAnnotation.LocalVarTargetInfo

LocalVarTargetInfo is a preview API of the Java platform.

Programs can only use LocalVarTargetInfo when preview features are enabled.

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

Indicates a range of code array offsets within which a local variable has a value, and the index into the local variable array of the current frame at which that local variable can be found.

Since:

22

Method Summary

Modifier and Type	Method	Description
LabelPREVIEW	endLabel()	The given local variable has a value at indices into the code array in the interval [start_pc, start_pc + length), that is, between start_pc inclusive and start_pc + length exclusive.
int	index()	The given local variable must be at index in the local variable array of the current frame.
static TypeAnnotation.LocalVarTargetInfoPREVIEW	of(LabelPREVIEW startLabel, LabelPREVIEW endLabel, int index)	Returns local variable target info.
LabelPREVIEW	startLabel()	The given local variable has a value at indices into the code array in the interval [start_pc, start_pc + length), that is, between start_pc inclusive and start_pc + length exclusive.

Method Details

startLabel

LabelPREVIEW startLabel()

The given local variable has a value at indices into the code array in the interval [start_pc, start_pc + length), that is, between start_pc inclusive and start_pc + length exclusive.

Returns:

the start of the bytecode section

endLabel

LabelPREVIEW endLabel()

The given local variable has a value at indices into the code array in the interval [start_pc, start_pc + length), that is, between start_pc inclusive and start_pc + length exclusive.

Returns:

the end of the bytecode section

index

int index()

The given local variable must be at index in the local variable array of the current frame. If the local variable at index is of type double or long, it occupies both index and index + 1.

Returns:

the index into the local variables

of

static TypeAnnotation.LocalVarTargetInfoPREVIEW of(LabelPREVIEW startLabel,
 LabelPREVIEW endLabel,
 int index)

Returns local variable target info.

Parameters:

startLabel - the code label indicating start of an interval where variable has value

endLabel - the code label indicating start of an interval where variable has value

index - index into the local variables

Returns:

local variable target info