me.tamkungz.nilloadersdk.helper

Class TransformerHelper

java.lang.Object

me.tamkungz.nilloadersdk.helper.TransformerHelper

public final class TransformerHelper
extends java.lang.Object

TransformerHelper — lightweight class patch utilities for NilLoader.

Designed for cases where you cannot use Mixin, but still want Java-agent style class mutation via NilLoader's transformer pipeline.

Important: register transformers during premain/hijack entrypoint. Registering too late will throw from NilLoader.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	TransformerHelper.AsmPatch Functional callback for ASM tree patching.
static interface	TransformerHelper.BytecodePatch Functional callback for byte[] class patching.

Method Summary

Modifier and Type	Method and Description
static boolean	classNameEquals(java.lang.String a, java.lang.String b) True if two class names match after normalizing to internal slash format.
static java.lang.String	normalizeClassName(java.lang.String className) Converts class names to internal slash format expected by transformers.
static void	registerAsmPatch(java.lang.String className, TransformerHelper.AsmPatch patch) Register an ASM ClassNode patch for one class.
static void	registerBytecodePatch(java.lang.String className, TransformerHelper.BytecodePatch patch) Register a simple raw-bytecode patch for one class.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

registerBytecodePatch

public static void registerBytecodePatch(java.lang.String className,
                                         TransformerHelper.BytecodePatch patch)

Register a simple raw-bytecode patch for one class.

Parameters:

className - dot or slash notation is accepted.

registerAsmPatch

public static void registerAsmPatch(java.lang.String className,
                                    TransformerHelper.AsmPatch patch)

Register an ASM ClassNode patch for one class.

Parameters:

className - dot or slash notation is accepted.

classNameEquals

public static boolean classNameEquals(java.lang.String a,
                                      java.lang.String b)

True if two class names match after normalizing to internal slash format.

normalizeClassName

public static java.lang.String normalizeClassName(java.lang.String className)

Converts class names to internal slash format expected by transformers.