com.alibaba.bytekit.asm

Class TypeHelper

java.lang.Object

com.alibaba.bytekit.asm.TypeHelper

public class TypeHelper
extends Object

Helpoer class providing static methods for manipulating type and class names, field and method descriptor names etc

Constructor Summary

Constructors

Constructor and Description
TypeHelper()

Method Summary

Modifier and Type	Method and Description
static boolean	equalDescriptors(String desc1, String desc2)
static String	externalizeClass(String className) convert a classname from canonical form to the form used to represent it externally i.e.
static String	externalizeDescriptor(String desc) convert a method descriptor from canonical form to the form used to represent it externally
static String	externalizeType(String typeName) convert a type name from canonical form to the form used to represent it externally i.e.
static String	internalizeClass(String className) convert a classname from external form to canonical form i.e.
static String	internalizeDescriptor(String desc) convert a method descriptor from the form used to represent it externally to canonical form
static String	parseMethodDescriptor(String targetMethod) split off the signature following the method name and return it
static String	parseMethodName(String targetMethod) split off the method name preceding the signature and return it

Methods inherited from class java.lang.Object

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

Constructor Detail

TypeHelper

public TypeHelper()

Method Detail

equalDescriptors

public static boolean equalDescriptors(String desc1,
                                       String desc2)

externalizeClass

public static String externalizeClass(String className)

convert a classname from canonical form to the form used to represent it externally i.e. replace all dots with slashes

Parameters:

className - the canonical name

Returns:

the external name

internalizeClass

public static String internalizeClass(String className)

convert a classname from external form to canonical form i.e. replace all slashes with dots

Parameters:

className - the external name

Returns:

the canonical name

externalizeType

public static String externalizeType(String typeName)

convert a type name from canonical form to the form used to represent it externally i.e. replace primitive type names by the appropriate single letter types, class names by the externalized class name bracketed by 'L' and ';' and array names by the base type name preceded by '['.

Parameters:

typeName - the type name

Returns:

the external name

externalizeDescriptor

public static String externalizeDescriptor(String desc)

convert a method descriptor from canonical form to the form used to represent it externally

Parameters:

desc - the method descriptor which must be trimmed of any surrounding white space

Returns:

an externalised form for the descriptor

internalizeDescriptor

public static String internalizeDescriptor(String desc)

convert a method descriptor from the form used to represent it externally to canonical form

Parameters:

desc - the method descriptor which must be trimmed of any surrounding white space and start with "(". it must end either with ")" or with ") " followed by an exernalized return type

Returns:

an internalised form for the descriptor, possibly followed by a space and externalized return type

parseMethodName

public static String parseMethodName(String targetMethod)

split off the method name preceding the signature and return it

Parameters:

targetMethod - - the unqualified method name, possibly including signature

Returns:

the method name

parseMethodDescriptor

public static String parseMethodDescriptor(String targetMethod)

split off the signature following the method name and return it

Parameters:

targetMethod - - the unqualified method name, possibly including signature

Returns:

the signature