Package com.tonic.analysis

Class MethodGrafter

java.lang.Object

com.tonic.analysis.MethodGrafter

public final class MethodGrafter
extends Object

Copies a method from one ClassFile into another, re-resolving its constant-pool references into the target pool.

Method Summary

Modifier and Type	Method	Description
static MethodEntry	graftMethod(ClassFile source, MethodEntry method, ClassFile target)	Grafts method from source into target as a brand-new method, returning the new method entry on the target.
static void	replaceMethodBody(ClassFile source, MethodEntry sourceMethod, ClassFile target, MethodEntry targetMethod)	Replaces targetMethod's body in place with sourceMethod's, remapping every constant-pool reference into the target.

Methods inherited from class java.lang.Object

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

Method Detail

graftMethod

public static MethodEntry graftMethod(ClassFile source,
                                      MethodEntry method,
                                      ClassFile target)

Grafts method from source into target as a brand-new method, returning the new method entry on the target.

Parameters:

source - the class file the method currently lives in

method - the method to copy

target - the class file to copy it into

Returns:

the newly created method on target

replaceMethodBody

public static void replaceMethodBody(ClassFile source,
                                     MethodEntry sourceMethod,
                                     ClassFile target,
                                     MethodEntry targetMethod)

Replaces targetMethod's body in place with sourceMethod's, remapping every constant-pool reference into the target.

Parameters:

source - the class file sourceMethod lives in

sourceMethod - the method whose body to copy

target - the class file targetMethod lives in

targetMethod - the method on target to overwrite (typically same name and descriptor)