Module java.base

Package java.lang.classfile.instruction^PREVIEW

Interface LocalVariableType

All Superinterfaces:

ClassFileElementPREVIEW, CodeElementPREVIEW, PseudoInstructionPREVIEW

public sealed interface LocalVariableType
extends PseudoInstructionPREVIEW

LocalVariableType is a preview API of the Java platform.

Programs can only use LocalVariableType when preview features are enabled.

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

A pseudo-instruction which models a single entry in the LocalVariableTypeTableAttribute^PREVIEW. Delivered as a CodeElement^PREVIEW during traversal of the elements of a CodeModel^PREVIEW, according to the setting of the ClassFile.DebugElementsOption^PREVIEW option.

Since:

22

Method Summary

Modifier and Type	Method	Description
LabelPREVIEW	endScope()	Returns the end range of the local variable scope.
Utf8EntryPREVIEW	name()	Returns the local variable name.
static LocalVariableTypePREVIEW	of(int slot, Utf8EntryPREVIEW nameEntry, Utf8EntryPREVIEW signatureEntry, LabelPREVIEW startScope, LabelPREVIEW endScope)	Returns a local variable type pseudo-instruction.
static LocalVariableTypePREVIEW	of(int slot, String name, SignaturePREVIEW signature, LabelPREVIEW startScope, LabelPREVIEW endScope)	Returns a local variable type pseudo-instruction.
Utf8EntryPREVIEW	signature()	Returns the local variable signature.
default SignaturePREVIEW	signatureSymbol()	Returns the local variable signature.
int	slot()	Returns the local variable slot.
LabelPREVIEW	startScope()	Returns the start range of the local variable scope.
boolean	writeTo(BufWriterPREVIEW buf)	Writes the local variable to the specified writer

Method Details

slot

int slot()

Returns the local variable slot.

Returns:

the local variable slot

name

Utf8EntryPREVIEW name()

Returns the local variable name.

Returns:

the local variable name

signature

Utf8EntryPREVIEW signature()

Returns the local variable signature.

Returns:

the local variable signature

signatureSymbol

default SignaturePREVIEW signatureSymbol()

Returns the local variable signature.

Returns:

the local variable signature

startScope

LabelPREVIEW startScope()

Returns the start range of the local variable scope.

Returns:

the start range of the local variable scope

endScope

LabelPREVIEW endScope()

Returns the end range of the local variable scope.

Returns:

the end range of the local variable scope

writeTo

boolean writeTo(BufWriterPREVIEW buf)

Writes the local variable to the specified writer

Parameters:

buf - the writer

Returns:

true if the variable has been written

of

static LocalVariableTypePREVIEW of(int slot,
 Utf8EntryPREVIEW nameEntry,
 Utf8EntryPREVIEW signatureEntry,
 LabelPREVIEW startScope,
 LabelPREVIEW endScope)

Returns a local variable type pseudo-instruction.

Parameters:

slot - the local variable slot

nameEntry - the local variable name

signatureEntry - the local variable signature

startScope - the start range of the local variable scope

endScope - the end range of the local variable scope

Returns:

a local variable type pseudo-instruction

of

static LocalVariableTypePREVIEW of(int slot,
 String name,
 SignaturePREVIEW signature,
 LabelPREVIEW startScope,
 LabelPREVIEW endScope)

Returns a local variable type pseudo-instruction.

Parameters:

slot - the local variable slot

name - the local variable name

signature - the local variable signature

startScope - the start range of the local variable scope

endScope - the end range of the local variable scope

Returns:

a local variable type pseudo-instruction