soot.util.backend

Class ASMBackendUtils

java.lang.Object

soot.util.backend.ASMBackendUtils

public class ASMBackendUtils
extends Object

Utility class for ASM-based back-ends.

Author:

Tobias Hamann, Florian Kuebler, Dominik Helm, Lukas Sommer

Constructor Summary

Constructors

Constructor and Description
ASMBackendUtils()

Method Summary

Modifier and Type	Method and Description
static boolean	acceptsStringInitialValue(SootField field) Determine if the field accepts a string default value, this is only true for fields of type String or a sub-type of String
static org.objectweb.asm.Attribute	createASMAttribute(Attribute attr) Create an ASM attribute from an Soot attribute
static Object	getDefaultValue(SootField field) Get default value of a field for constant pool
static int	sizeOfType(Type t) Get the size in words for a type.
static String	slashify(String s) Convert class identifiers and signatures by replacing dots by slashes.
static String	toTypeDesc(List<Type> parameterTypes, Type returnType) Compute type description for methods, comprising parameter types and return type.
static String	toTypeDesc(SootMethodRef m) Compute type description for methods, comprising parameter types and return type.
static String	toTypeDesc(Type type) Convert type to JVM style type description
static String	translateJavaVersion(int javaVersion) Translate internal numbering of java versions to real version for debug messages.

Methods inherited from class java.lang.Object

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

Constructor Detail

ASMBackendUtils

public ASMBackendUtils()

Method Detail

slashify

public static String slashify(String s)

Convert class identifiers and signatures by replacing dots by slashes.

Parameters:

s - String to convert

Returns:

Converted identifier

toTypeDesc

public static String toTypeDesc(SootMethodRef m)

Compute type description for methods, comprising parameter types and return type.

Parameters:

m - Method to determine type description

Returns:

Method type description

toTypeDesc

public static String toTypeDesc(List<Type> parameterTypes,
                                Type returnType)

Compute type description for methods, comprising parameter types and return type.

Parameters:

parameterTypes - The parameters for some method

returnType - The return type for some method

Returns:

Method type description

toTypeDesc

public static String toTypeDesc(Type type)

Convert type to JVM style type description

Parameters:

type - Type to convert

Returns:

JVM style type description

getDefaultValue

public static Object getDefaultValue(SootField field)

Get default value of a field for constant pool

Parameters:

field - Field to get default value for

Returns:

Default value or null if there is no default value.

acceptsStringInitialValue

public static boolean acceptsStringInitialValue(SootField field)

Determine if the field accepts a string default value, this is only true for fields of type String or a sub-type of String

Parameters:

field - Field

Returns:

true if the field is of type String or sub-type, false otherwise.

sizeOfType

public static int sizeOfType(Type t)

Get the size in words for a type.

Parameters:

t - Type

Returns:

Size in words

createASMAttribute

public static org.objectweb.asm.Attribute createASMAttribute(Attribute attr)

Create an ASM attribute from an Soot attribute

Parameters:

attr - Soot attribute

Returns:

ASM attribute

translateJavaVersion

public static String translateJavaVersion(int javaVersion)

Translate internal numbering of java versions to real version for debug messages.

Parameters:

javaVersion - Internal java version number

Returns:

Java version in the format "1.7"