com.alibaba.bytekit.utils

类 AsmUtils

java.lang.Object

com.alibaba.bytekit.utils.AsmUtils

public class AsmUtils
extends Object

作者:

hengyunabc

构造器概要

构造器

构造器和说明
AsmUtils()

方法概要

限定符和类型	方法和说明
static void	addField(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode, com.alibaba.deps.org.objectweb.asm.tree.FieldNode fieldNode)
static void	addMethod(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode, com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static String	className(byte[] classBytes)
static boolean	containsMethodInsnNode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode, String owner, String name)
static com.alibaba.deps.org.objectweb.asm.tree.ClassNode	copy(com.alibaba.deps.org.objectweb.asm.tree.ClassNode source)
static com.alibaba.deps.org.objectweb.asm.tree.MethodNode	copy(com.alibaba.deps.org.objectweb.asm.tree.MethodNode source)
static int	currentJvmMajorVersion() 如果成功获取，返回大于 0 的值
static com.alibaba.deps.org.objectweb.asm.tree.FieldNode	findField(List<com.alibaba.deps.org.objectweb.asm.tree.FieldNode> fields, String name)
static com.alibaba.deps.org.objectweb.asm.tree.MethodNode	findFirstMethod(Collection<com.alibaba.deps.org.objectweb.asm.tree.MethodNode> methodNodes, String name)
static com.alibaba.deps.org.objectweb.asm.tree.AbstractInsnNode	findInitConstructorInstruction(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static com.alibaba.deps.org.objectweb.asm.tree.MethodNode	findMethod(Collection<com.alibaba.deps.org.objectweb.asm.tree.MethodNode> methodNodes, com.alibaba.deps.org.objectweb.asm.tree.MethodNode target)
static com.alibaba.deps.org.objectweb.asm.tree.MethodNode	findMethod(Collection<com.alibaba.deps.org.objectweb.asm.tree.MethodNode> methodNodes, String name, String desc)
static List<com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode>	findMethodInsnNode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode, String owner, String name)
static List<com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode>	findMethodInsnNode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode, String owner, String name, String desc)
static List<com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode>	findMethodInsnNodeWithPrefix(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode, String prefix)
static List<com.alibaba.deps.org.objectweb.asm.tree.MethodNode>	findMethods(Collection<com.alibaba.deps.org.objectweb.asm.tree.MethodNode> methodNodes, String name)
static boolean	fitCurrentJvmMajorVersion(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode) 检查当前的字节码版本是否适配
static void	fixConstructorExceptionTable(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static void	fixMajorVersion(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)
static int	getMajorVersion(int version) Java ClassFile versions (the minor version is stored in the 16 most significant bits, and the major version in the 16 least significant bits).
String[]	getParameterNames(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static String	internalClassName(Class<?> clazz)
static String	internalClassName(String className)
static boolean	isAbstract(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static boolean	isConstructor(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static boolean	isEnhancerByCGLIB(String className)
static boolean	isNative(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static boolean	isStatic(com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode methodInsnNode)
static boolean	isStatic(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static com.alibaba.deps.org.objectweb.asm.tree.ClassNode	loadClass(Class<?> clazz)
static String	methodDeclaration(com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode methodInsnNode)
static String	methodDeclaration(com.alibaba.deps.org.objectweb.asm.Type owner, com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static com.alibaba.deps.org.objectweb.asm.tree.MethodNode	newMethodNode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode source)
static com.alibaba.deps.org.objectweb.asm.tree.ClassNode	removeJSRInstructions(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)
static com.alibaba.deps.org.objectweb.asm.tree.MethodNode	removeJSRInstructions(com.alibaba.deps.org.objectweb.asm.tree.MethodNode subjectMethod)
static void	removeLineNumbers(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)
static com.alibaba.deps.org.objectweb.asm.tree.MethodNode	removeLineNumbers(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static byte[]	renameClass(byte[] classBytes, String newClassName)
static com.alibaba.deps.org.objectweb.asm.tree.ClassNode	renameClass(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode, String newClassName)
static void	replaceMethod(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode, com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static int	setMajorVersion(int version, int majorVersion) 替换掉完整 version里的 major version
static String	toASMCode(byte[] bytecode)
static String	toASMCode(byte[] bytecode, boolean debug)
static String	toASMCode(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)
static String	toASMCode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)
static byte[]	toBytes(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)
static byte[]	toBytes(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode, ClassLoader classLoader, com.alibaba.deps.org.objectweb.asm.ClassReader classReader) Generate class bytes from class node.
static com.alibaba.deps.org.objectweb.asm.tree.ClassNode	toClassNode(byte[] classBytes)
static com.alibaba.deps.org.objectweb.asm.ClassReader	toClassNode(byte[] classBytes, com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)
static String	uniqueNameForMethod(String className, String methodName, String desc)
static void	updateMajorVersion(com.alibaba.deps.org.objectweb.asm.tree.ClassNode from, com.alibaba.deps.org.objectweb.asm.tree.ClassNode to) 比如两份字节码的 major version，如果 from 的比 to 的要高，则设置 to 的 major version 为 from的 major version

从类继承的方法 java.lang.Object

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

构造器详细资料

AsmUtils

public AsmUtils()

方法详细资料

loadClass

public static com.alibaba.deps.org.objectweb.asm.tree.ClassNode loadClass(Class<?> clazz)
                                                                   throws IOException

抛出:

IOException

toClassNode

public static com.alibaba.deps.org.objectweb.asm.tree.ClassNode toClassNode(byte[] classBytes)

toClassNode

public static com.alibaba.deps.org.objectweb.asm.ClassReader toClassNode(byte[] classBytes,
                                                                         com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)

toBytes

public static byte[] toBytes(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode,
                             ClassLoader classLoader,
                             com.alibaba.deps.org.objectweb.asm.ClassReader classReader)

Generate class bytes from class node.
NOTE: must pass origin classReader for bytecode optimizations, avoiding JVM metaspace OOM.

参数:

classNode -

classLoader -

classReader - origin class reader

返回:

toBytes

public static byte[] toBytes(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)

renameClass

public static com.alibaba.deps.org.objectweb.asm.tree.ClassNode renameClass(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode,
                                                                            String newClassName)

renameClass

public static byte[] renameClass(byte[] classBytes,
                                 String newClassName)

replaceMethod

public static void replaceMethod(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode,
                                 com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

toASMCode

public static String toASMCode(byte[] bytecode)
                        throws IOException

抛出:

IOException

toASMCode

public static String toASMCode(byte[] bytecode,
                               boolean debug)
                        throws IOException

抛出:

IOException

toASMCode

public static String toASMCode(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)

toASMCode

public static String toASMCode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

newMethodNode

public static com.alibaba.deps.org.objectweb.asm.tree.MethodNode newMethodNode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode source)

removeJSRInstructions

public static com.alibaba.deps.org.objectweb.asm.tree.MethodNode removeJSRInstructions(com.alibaba.deps.org.objectweb.asm.tree.MethodNode subjectMethod)

removeJSRInstructions

public static com.alibaba.deps.org.objectweb.asm.tree.ClassNode removeJSRInstructions(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)

removeLineNumbers

public static com.alibaba.deps.org.objectweb.asm.tree.MethodNode removeLineNumbers(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

removeLineNumbers

public static void removeLineNumbers(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)

findFirstMethod

public static com.alibaba.deps.org.objectweb.asm.tree.MethodNode findFirstMethod(Collection<com.alibaba.deps.org.objectweb.asm.tree.MethodNode> methodNodes,
                                                                                 String name)

findMethods

public static List<com.alibaba.deps.org.objectweb.asm.tree.MethodNode> findMethods(Collection<com.alibaba.deps.org.objectweb.asm.tree.MethodNode> methodNodes,
                                                                                   String name)

findMethod

public static com.alibaba.deps.org.objectweb.asm.tree.MethodNode findMethod(Collection<com.alibaba.deps.org.objectweb.asm.tree.MethodNode> methodNodes,
                                                                            com.alibaba.deps.org.objectweb.asm.tree.MethodNode target)

findMethod

public static com.alibaba.deps.org.objectweb.asm.tree.MethodNode findMethod(Collection<com.alibaba.deps.org.objectweb.asm.tree.MethodNode> methodNodes,
                                                                            String name,
                                                                            String desc)

findInitConstructorInstruction

public static com.alibaba.deps.org.objectweb.asm.tree.AbstractInsnNode findInitConstructorInstruction(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

findMethodInsnNodeWithPrefix

public static List<com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode> findMethodInsnNodeWithPrefix(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode,
                                                                                                        String prefix)

findMethodInsnNode

public static List<com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode> findMethodInsnNode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode,
                                                                                              String owner,
                                                                                              String name)

findMethodInsnNode

public static List<com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode> findMethodInsnNode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode,
                                                                                              String owner,
                                                                                              String name,
                                                                                              String desc)

containsMethodInsnNode

public static boolean containsMethodInsnNode(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode,
                                             String owner,
                                             String name)

isStatic

public static boolean isStatic(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

isStatic

public static boolean isStatic(com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode methodInsnNode)

isAbstract

public static boolean isAbstract(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

isConstructor

public static boolean isConstructor(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

isNative

public static boolean isNative(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

getParameterNames

public String[] getParameterNames(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

copy

public static com.alibaba.deps.org.objectweb.asm.tree.MethodNode copy(com.alibaba.deps.org.objectweb.asm.tree.MethodNode source)

copy

public static com.alibaba.deps.org.objectweb.asm.tree.ClassNode copy(com.alibaba.deps.org.objectweb.asm.tree.ClassNode source)

methodDeclaration

public static String methodDeclaration(com.alibaba.deps.org.objectweb.asm.tree.MethodInsnNode methodInsnNode)

methodDeclaration

public static String methodDeclaration(com.alibaba.deps.org.objectweb.asm.Type owner,
                                       com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

findField

public static com.alibaba.deps.org.objectweb.asm.tree.FieldNode findField(List<com.alibaba.deps.org.objectweb.asm.tree.FieldNode> fields,
                                                                          String name)

addField

public static void addField(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode,
                            com.alibaba.deps.org.objectweb.asm.tree.FieldNode fieldNode)

addMethod

public static void addMethod(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode,
                             com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

uniqueNameForMethod

public static String uniqueNameForMethod(String className,
                                         String methodName,
                                         String desc)

getMajorVersion

public static int getMajorVersion(int version)

Java ClassFile versions (the minor version is stored in the 16 most significant bits, and the major version in the 16 least significant bits).

参数:

version -

返回:

另请参阅:

Opcodes.V_PREVIEW

setMajorVersion

public static int setMajorVersion(int version,
                                  int majorVersion)

替换掉完整 version里的 major version

参数:

version -

majorVersion -

返回:

className

public static String className(byte[] classBytes)

isEnhancerByCGLIB

public static boolean isEnhancerByCGLIB(String className)

fixConstructorExceptionTable

public static void fixConstructorExceptionTable(com.alibaba.deps.org.objectweb.asm.tree.MethodNode methodNode)

fixMajorVersion

public static void fixMajorVersion(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)

updateMajorVersion

public static void updateMajorVersion(com.alibaba.deps.org.objectweb.asm.tree.ClassNode from,
                                      com.alibaba.deps.org.objectweb.asm.tree.ClassNode to)

比如两份字节码的 major version，如果 from 的比 to 的要高，则设置 to 的 major version 为 from的 major version

参数:

from -

to -

currentJvmMajorVersion

public static int currentJvmMajorVersion()

如果成功获取，返回大于 0 的值

返回:

fitCurrentJvmMajorVersion

public static boolean fitCurrentJvmMajorVersion(com.alibaba.deps.org.objectweb.asm.tree.ClassNode classNode)

检查当前的字节码版本是否适配

参数:

classNode -

返回:

internalClassName

public static String internalClassName(String className)

internalClassName

public static String internalClassName(Class<?> clazz)