net.lenni0451.commons.asm

Class MethodInliner

java.lang.Object

net.lenni0451.commons.asm.MethodInliner

public class MethodInliner
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
MethodInliner()

Method Summary

Modifier and Type

Method and Description

static void

wrappedInline(org.objectweb.asm.tree.ClassNode classNode, org.objectweb.asm.tree.MethodNode inlinedMethod, java.lang.String inlinedMethodOwner) Inline a method into all methods of a class. The inlined method does not need to be in the class in which it is inlined, but it will be removed from the class if it is. All return instructions in the method are replaced with a jump to the end of the inlined method. The ASM analyzer is used to store the stack in local variables to avoid any stack issues. All parameters of the inlined method are stored in local variables and then used in the inlined method. The return type will be loaded onto the stack once the old stack (minus the parameters and owner) is restored. Because of this, direct modifications of the parameters are not supported (the behavior of the inlined method will not change). The try-catch blocks, local variables and exceptions of the inlined method are merged with the method in which it is inlined. It is required to recalculate all stack map frames after inlining a method.

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodInliner

public MethodInliner()

Method Detail

wrappedInline

public static void wrappedInline(org.objectweb.asm.tree.ClassNode classNode,
                                 org.objectweb.asm.tree.MethodNode inlinedMethod,
                                 java.lang.String inlinedMethodOwner)

Inline a method into all methods of a class.
The inlined method does not need to be in the class in which it is inlined, but it will be removed from the class if it is.

All return instructions in the method are replaced with a jump to the end of the inlined method.
The ASM analyzer is used to store the stack in local variables to avoid any stack issues.
All parameters of the inlined method are stored in local variables and then used in the inlined method.
The return type will be loaded onto the stack once the old stack (minus the parameters and owner) is restored.
Because of this, direct modifications of the parameters are not supported (the behavior of the inlined method will not change).

The try-catch blocks, local variables and exceptions of the inlined method are merged with the method in which it is inlined.
It is required to recalculate all stack map frames after inlining a method.

Parameters:

classNode - The class with the methods to inline into

inlinedMethod - The method to inline

inlinedMethodOwner - The owner of the method to inline