Interface CodeRelabeler

All Superinterfaces:

ClassFileTransform<CodeTransform, CodeElement, CodeBuilder>, CodeTransform

public sealed interface CodeRelabeler
extends CodeTransform

A code relabeler is a CodeTransform replacing all occurrences of Label in the transformed code with new instances. All LabelTarget instructions are adjusted accordingly. Relabeled code graph is identical to the original.

Primary purpose of CodeRelabeler is for repeated injections of the same code blocks. Repeated injection of the same code block must be relabeled, so each instance of Label is bound in the target bytecode exactly once.

Since:

24

Field Summary

Fields declared in interface java.lang.classfile.CodeTransform

ACCEPT_ALL

Method Summary

Static Methods

Modifier and Type	Method	Description
static CodeRelabeler	of()	Creates a new instance of CodeRelabeler.
static CodeRelabeler	of(BiFunction<Label, CodeBuilder, Label> mapFunction)	Creates a new instance of CodeRelabeler using provided BiFunction to re-label the code.
static CodeRelabeler	of(Map<Label,Label> map)	Creates a new instance of CodeRelabeler storing the label mapping into the provided map.

Methods declared in interface java.lang.classfile.ClassFileTransform

accept, atEnd, atStart

Methods declared in interface java.lang.classfile.CodeTransform

andThen

Method Details

of

static CodeRelabeler of()

Creates a new instance of CodeRelabeler.

Returns:

a new instance of CodeRelabeler

of

static CodeRelabeler of(Map<Label,Label> map)

Creates a new instance of CodeRelabeler storing the label mapping into the provided map.

Parameters:

map - label map actively used for relabeling

Returns:

a new instance of CodeRelabeler

of

static CodeRelabeler of(BiFunction<Label, CodeBuilder, Label> mapFunction)

Creates a new instance of CodeRelabeler using provided BiFunction to re-label the code.

Parameters:

mapFunction - function for remapping labels in the source code model

Returns:

a new instance of CodeRelabeler