Class ConstantPoolParser

java.lang.Object

com.ibm.wala.shrike.shrikeCT.ConstantPoolParser

All Implemented Interfaces:

ClassConstants

public final class ConstantPoolParser
extends Object
implements ClassConstants

A ConstantPoolParser provides read-only access to the constant pool of a class file.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ConstantPoolParser.ReferenceToken

Field Summary

Fields inherited from interface ClassConstants

ACC_ABSTRACT, ACC_FINAL, ACC_INTERFACE, ACC_NATIVE, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_TRANSIENT, ACC_VOLATILE, CONSTANT_Class, CONSTANT_Double, CONSTANT_FieldRef, CONSTANT_Float, CONSTANT_Integer, CONSTANT_InterfaceMethodRef, CONSTANT_InvokeDynamic, CONSTANT_Long, CONSTANT_MethodHandle, CONSTANT_MethodRef, CONSTANT_MethodType, CONSTANT_Module, CONSTANT_NameAndType, CONSTANT_Package, CONSTANT_String, CONSTANT_Utf8, MAGIC, REF_getField, REF_getStatic, REF_invokeInterface, REF_invokeSpecial, REF_invokeStatic, REF_invokeVirtual, REF_newInvokeSpecial, REF_putField, REF_putStatic

Constructor Summary

Constructors

Constructor	Description
ConstantPoolParser(byte[] bytes, int offset, int itemCount)

Method Summary

Modifier and Type	Method	Description
String	getCPClass(int i)
double	getCPDouble(int i)
BootstrapMethodsReader.BootstrapMethod	getCPDynBootstrap(int i)
String	getCPDynName(int i)
String	getCPDynType(int i)
float	getCPFloat(int i)
String	getCPHandleClass(int i)
byte	getCPHandleKind(int i)
String	getCPHandleName(int i)
String	getCPHandleType(int i)
int	getCPInt(int i)
long	getCPLong(int i)
String	getCPMethodType(int i)
String	getCPNATName(int i)
String	getCPNATType(int i)
String	getCPRefClass(int i)
String	getCPRefName(int i)
String	getCPRefType(int i)
String	getCPString(int i)
String	getCPUtf8(int i)
int	getItemCount()
byte	getItemType(int i)
byte[]	getRawBytes()
int	getRawOffset()
int	getRawSize()
static boolean	isRef(byte b)	Does b represent the tag of a constant pool reference to an (interface) method or field?

Methods inherited from class Object

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

Constructor Details

ConstantPoolParser

public ConstantPoolParser(byte[] bytes,
 int offset,
 int itemCount)
                   throws InvalidClassFileException

Parameters:

bytes - the raw class file data

offset - the start of the constant pool data

itemCount - the number of items in the pool

Throws:

InvalidClassFileException

Method Details

getRawBytes

public byte[] getRawBytes()

Returns:

the buffer holding the raw class file data

getRawOffset

public int getRawOffset()
                 throws IllegalStateException

Returns:

the offset of the constant pool data in the raw class file buffer

Throws:

IllegalStateException

getRawSize

public int getRawSize()
               throws IllegalStateException

Returns:

the size of the constant pool data in the raw class file buffer

Throws:

IllegalStateException

getItemCount

public int getItemCount()

Returns:

the number of constant pool items (maximum item index plus one)

getItemType

public byte getItemType(int i)
                 throws IllegalArgumentException

Returns:

the type of constant pool item i, or 0 if i is an unused constant pool item

Throws:

IllegalArgumentException

getCPClass

public String getCPClass(int i)
                  throws InvalidClassFileException,
IllegalArgumentException

Returns:

the name of the Class at constant pool item i, in JVM format (e.g., java/lang/Object)

Throws:

InvalidClassFileException

IllegalArgumentException

getCPMethodType

public String getCPMethodType(int i)
                       throws InvalidClassFileException,
IllegalArgumentException

Returns:

the name of the method at constant pool item i, in JVM format (e.g., java/lang/Object)

Throws:

InvalidClassFileException

IllegalArgumentException

getCPString

public String getCPString(int i)
                   throws InvalidClassFileException,
IllegalArgumentException

Returns:

the String at constant pool item i

Throws:

InvalidClassFileException

IllegalArgumentException

isRef

public static boolean isRef(byte b)

Does b represent the tag of a constant pool reference to an (interface) method or field?

getCPRefClass

public String getCPRefClass(int i)
                     throws InvalidClassFileException,
IllegalArgumentException

Returns:

the name of the class part of the FieldRef, MethodRef, or InterfaceMethodRef at constant pool item i

Throws:

InvalidClassFileException

IllegalArgumentException

getCPRefName

public String getCPRefName(int i)
                    throws InvalidClassFileException,
IllegalArgumentException

Returns:

the name part of the FieldRef, MethodRef, or InterfaceMethodRef at constant pool item i

Throws:

InvalidClassFileException

IllegalArgumentException

getCPRefType

public String getCPRefType(int i)
                    throws InvalidClassFileException,
IllegalArgumentException

Returns:

the type part of the FieldRef, MethodRef, or InterfaceMethodRef at constant pool item i, in JVM format (e.g., I, Z, or Ljava/lang/Object;)

Throws:

InvalidClassFileException

IllegalArgumentException

getCPNATName

public String getCPNATName(int i)
                    throws InvalidClassFileException,
IllegalArgumentException

Returns:

the name part of the NameAndType at constant pool item i

Throws:

InvalidClassFileException

IllegalArgumentException

getCPNATType

public String getCPNATType(int i)
                    throws InvalidClassFileException,
IllegalArgumentException

Returns:

the type part of the NameAndType at constant pool item i, in JVM format (e.g., I, Z, or Ljava/lang/Object;)

Throws:

InvalidClassFileException

IllegalArgumentException

getCPHandleName

public String getCPHandleName(int i)
                       throws InvalidClassFileException,
IllegalArgumentException

Returns:

the name part of the MethodHandle at constant pool item i, in JVM format (e.g., I, Z, or Ljava/lang/Object;)

Throws:

InvalidClassFileException

IllegalArgumentException

getCPHandleType

public String getCPHandleType(int i)
                       throws InvalidClassFileException,
IllegalArgumentException

Returns:

the name part of the MethodHandle at constant pool item i, in JVM format (e.g., I, Z, or Ljava/lang/Object;)

Throws:

InvalidClassFileException

IllegalArgumentException

getCPHandleClass

public String getCPHandleClass(int i)
                        throws InvalidClassFileException,
IllegalArgumentException

Returns:

the name part of the MethodHandle at constant pool item i, in JVM format (e.g., I, Z, or Ljava/lang/Object;)

Throws:

InvalidClassFileException

IllegalArgumentException

getCPHandleKind

public byte getCPHandleKind(int i)
                     throws InvalidClassFileException,
IllegalArgumentException

Returns:

the type of the MethodHandle at constant pool item i

Throws:

InvalidClassFileException

IllegalArgumentException

getCPInt

public int getCPInt(int i)
             throws IllegalArgumentException

Returns:

the value of the Integer at constant pool item i

Throws:

IllegalArgumentException

getCPFloat

public float getCPFloat(int i)
                 throws IllegalArgumentException

Returns:

the value of the Float at constant pool item i

Throws:

IllegalArgumentException

getCPLong

public long getCPLong(int i)
               throws IllegalArgumentException

Returns:

the value of the Long at constant pool item i

Throws:

IllegalArgumentException

getCPDouble

public double getCPDouble(int i)
                   throws IllegalArgumentException

Returns:

the value of the Double at constant pool item i

Throws:

IllegalArgumentException

getCPDynBootstrap

public BootstrapMethodsReader.BootstrapMethod getCPDynBootstrap(int i)
                                                         throws InvalidClassFileException,
IllegalArgumentException

Returns:

the BootstrapMethodTable index of the bootstrap method for this invokedynamic

Throws:

InvalidClassFileException

IllegalArgumentException

getCPDynName

public String getCPDynName(int i)
                    throws InvalidClassFileException,
IllegalArgumentException

Throws:

InvalidClassFileException

IllegalArgumentException

getCPDynType

public String getCPDynType(int i)
                    throws InvalidClassFileException,
IllegalArgumentException

Throws:

InvalidClassFileException

IllegalArgumentException

getCPUtf8

public String getCPUtf8(int i)
                 throws InvalidClassFileException,
IllegalArgumentException

Returns:

the value of the Utf8 string at constant pool item i

Throws:

InvalidClassFileException

IllegalArgumentException