com.alibaba.testable.agent.util

Class MethodUtil

java.lang.Object

com.alibaba.testable.agent.util.MethodUtil

public class MethodUtil
extends Object

Constructor Summary

Constructors

Constructor and Description
MethodUtil()

Method Summary

Modifier and Type	Method and Description
static String	addParameterAtBegin(String desc, String type) Add extra parameter to the beginning of method descriptor
static String	extractParameters(String desc) Extract parameter part of method desc
static String	getFirstParameter(String desc) Parse method desc, fetch first parameter type (assume first parameter is an object type)
static Object	getParameters(String desc) Parse method desc, fetch parameter types string
static List<Byte>	getParameterTypes(String desc) Parse method desc, fetch parameter types
static String	getReturnType(String desc) Parse method desc, fetch return value type
static boolean	isStatic(org.objectweb.asm.tree.MethodNode mn) Judge whether a method is static
static String	removeFirstParameter(String desc) Remove first parameter from method descriptor
static ImmutablePair<String,String>	splitFirstAndRestParameters(String desc) Split desc to "first parameter" and "desc of rest parameters"
static String	toJavaMethodDesc(String owner, String desc) Format to java style constructor descriptor
static String	toJavaMethodDesc(String owner, String name, String desc) Format to java style method descriptor

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodUtil

public MethodUtil()

Method Detail

isStatic

public static boolean isStatic(org.objectweb.asm.tree.MethodNode mn)

Judge whether a method is static

Parameters:

mn - method to check

Returns:

is static or not

getParameterTypes

public static List<Byte> getParameterTypes(String desc)

Parse method desc, fetch parameter types

Parameters:

desc - method description

Returns:

list of parameter types

extractParameters

public static String extractParameters(String desc)

Extract parameter part of method desc

Parameters:

desc - method description

Returns:

parameter value

getReturnType

public static String getReturnType(String desc)

Parse method desc, fetch return value type

Parameters:

desc - method description

Returns:

types of return value

getParameters

public static Object getParameters(String desc)

Parse method desc, fetch parameter types string

Parameters:

desc - method description

Returns:

parameter types

getFirstParameter

public static String getFirstParameter(String desc)

Parse method desc, fetch first parameter type (assume first parameter is an object type)

Parameters:

desc - method description

Returns:

types of first parameter

splitFirstAndRestParameters

public static ImmutablePair<String,String> splitFirstAndRestParameters(String desc)

Split desc to "first parameter" and "desc of rest parameters"

Parameters:

desc - method desc

Returns:

pair of [slash separated first parameter type, desc of rest parameters]

removeFirstParameter

public static String removeFirstParameter(String desc)

Remove first parameter from method descriptor

Parameters:

desc - original descriptor

Returns:

descriptor without first parameter

addParameterAtBegin

public static String addParameterAtBegin(String desc,
                                         String type)

Add extra parameter to the beginning of method descriptor

Parameters:

desc - original descriptor

type - byte code class name

Returns:

descriptor with specified parameter at begin

toJavaMethodDesc

public static String toJavaMethodDesc(String owner,
                                      String desc)

Format to java style constructor descriptor

Parameters:

owner - class of method belongs to

desc - method constructor in bytecode format

Returns:

java style constructor descriptor

toJavaMethodDesc

public static String toJavaMethodDesc(String owner,
                                      String name,
                                      String desc)

Format to java style method descriptor

Parameters:

owner - class of method belongs to

name - method name

desc - method descriptor in bytecode format

Returns:

java style method descriptor