org.plumelib.bcelutil

Class JvmUtil

java.lang.Object

org.plumelib.bcelutil.JvmUtil

public final class JvmUtil
extends java.lang.Object

Utility functions for working with the JVM.

Currently contains conversion utilities between Java and JVM string formats, for types and signatures.

Constructor Summary

Constructors

Constructor and Description
JvmUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.String	arglistFromJvm(java.lang.String arglist) Convert an argument list from JVML format to Java format.
static java.lang.String	arglistToJvm(java.lang.String arglist) Convert a fully-qualified argument list from Java format to JVML format.
static java.lang.String	binaryNameToClassGetName(java.lang.String bn) Convert from a BinaryName to the format of Class.getName().
static java.lang.String	binaryNameToFieldDescriptor(java.lang.String classname) Convert a binary name to a field descriptor.
static java.lang.String	fieldDescriptorToBinaryName(java.lang.String classname) Convert a field descriptor to a binary name.
static java.lang.String	fieldDescriptorToClassGetName(java.lang.String fd) Convert from a FieldDescriptor to the format of Class.getName().
static java.lang.String	primitiveTypeNameToFieldDescriptor(java.lang.String primitiveName) Convert a primitive java type name (e.g., "int", "double", etc.) to a field descriptor (e.g., "I", "D", etc.).

Methods inherited from class java.lang.Object

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

Constructor Detail

JvmUtil

public JvmUtil()

Method Detail

binaryNameToFieldDescriptor

public static java.lang.String binaryNameToFieldDescriptor(java.lang.String classname)

Convert a binary name to a field descriptor. For example, convert "java.lang.Object[]" to "[Ljava/lang/Object;" or "int" to "I".

Parameters:

classname - name of the class, in binary class name format

Returns:

name of the class, in field descriptor format

primitiveTypeNameToFieldDescriptor

public static java.lang.String primitiveTypeNameToFieldDescriptor(java.lang.String primitiveName)

Convert a primitive java type name (e.g., "int", "double", etc.) to a field descriptor (e.g., "I", "D", etc.).

Parameters:

primitiveName - name of the type, in Java format

Returns:

name of the type, in field descriptor format

Throws:

java.lang.IllegalArgumentException - if primitiveName is not a valid primitive type name

binaryNameToClassGetName

public static java.lang.String binaryNameToClassGetName(java.lang.String bn)

Convert from a BinaryName to the format of Class.getName().

Parameters:

bn - the binary name to convert

Returns:

the class name, in Class.getName format

fieldDescriptorToClassGetName

public static java.lang.String fieldDescriptorToClassGetName(java.lang.String fd)

Convert from a FieldDescriptor to the format of Class.getName().

Parameters:

fd - the class, in field descriptor format

Returns:

the class name, in Class.getName format

arglistToJvm

public static java.lang.String arglistToJvm(java.lang.String arglist)

Convert a fully-qualified argument list from Java format to JVML format. For example, convert "(java.lang.Integer[], int, java.lang.Integer[][])" to "([Ljava/lang/Integer;I[[Ljava/lang/Integer;)".

Parameters:

arglist - an argument list, in Java format

Returns:

argument list, in JVML format

fieldDescriptorToBinaryName

public static java.lang.String fieldDescriptorToBinaryName(java.lang.String classname)

Convert a field descriptor to a binary name. For example, convert "[Ljava/lang/Object;" to "java.lang.Object[]" or "I" to "int".

Parameters:

classname - name of the type, in JVML format

Returns:

name of the type, in Java format

arglistFromJvm

public static java.lang.String arglistFromJvm(java.lang.String arglist)

Convert an argument list from JVML format to Java format. For example, convert "([Ljava/lang/Integer;I[[Ljava/lang/Integer;)" to "(java.lang.Integer[], int, java.lang.Integer[][])".

Parameters:

arglist - an argument list, in JVML format

Returns:

argument list, in Java format