public class ConstantPool
extends java.lang.Object
| Constructor and Description |
|---|
ConstantPool()
Initialise the constant pool.
|
| Modifier and Type | Method and Description |
|---|---|
int |
addEntry(ConstantPoolEntry entry)
Add an entry to the constant pool.
|
int |
getClassEntry(java.lang.String className)
Get the index of a given CONSTANT_CLASS entry in the constant pool.
|
int |
getConstantEntry(java.lang.Object constantValue)
Get the index of a given constant value entry in the constant pool.
|
ConstantPoolEntry |
getEntry(int index)
Get an constant pool entry at a particular index.
|
int |
getFieldRefEntry(java.lang.String fieldClassName,
java.lang.String fieldName,
java.lang.String fieldType)
Get the index of a given CONSTANT_FIELDREF entry in the constant
pool.
|
int |
getInterfaceMethodRefEntry(java.lang.String interfaceMethodClassName,
java.lang.String interfaceMethodName,
java.lang.String interfaceMethodType)
Get the index of a given CONSTANT_INTERFACEMETHODREF entry in the
constant pool.
|
int |
getMethodRefEntry(java.lang.String methodClassName,
java.lang.String methodName,
java.lang.String methodType)
Get the index of a given CONSTANT_METHODREF entry in the constant
pool.
|
int |
getNameAndTypeEntry(java.lang.String name,
java.lang.String type)
Get the index of a given CONSTANT_NAMEANDTYPE entry in the constant
pool.
|
int |
getUTF8Entry(java.lang.String value)
Get the index of a given UTF8 constant pool entry.
|
void |
read(java.io.DataInputStream classStream)
Read the constant pool from a class input stream.
|
void |
resolve()
Resolve the entries in the constant pool.
|
int |
size()
Get the size of the constant pool.
|
java.lang.String |
toString()
Dump the constant pool to a string.
|
public void read(java.io.DataInputStream classStream)
throws java.io.IOException
classStream - the DataInputStream of a class file.java.io.IOException - if there is a problem reading the constant pool
from the streampublic int size()
public int addEntry(ConstantPoolEntry entry)
entry - the new entry to be added to the constant pool.public void resolve()
public ConstantPoolEntry getEntry(int index)
index - the index into the constant pool.public int getUTF8Entry(java.lang.String value)
value - the string value of the UTF8 entry.public int getClassEntry(java.lang.String className)
className - the name of the class for which the class entry
index is required.public int getConstantEntry(java.lang.Object constantValue)
constantValue - the constant value for which the index is
required.public int getMethodRefEntry(java.lang.String methodClassName,
java.lang.String methodName,
java.lang.String methodType)
methodClassName - the name of the class which contains the
method being referenced.methodName - the name of the method being referenced.methodType - the type descriptor of the method being referenced.public int getInterfaceMethodRefEntry(java.lang.String interfaceMethodClassName,
java.lang.String interfaceMethodName,
java.lang.String interfaceMethodType)
interfaceMethodClassName - the name of the interface which
contains the method being referenced.interfaceMethodName - the name of the method being referenced.interfaceMethodType - the type descriptor of the method being
referenced.public int getFieldRefEntry(java.lang.String fieldClassName,
java.lang.String fieldName,
java.lang.String fieldType)
fieldClassName - the name of the class which contains the field
being referenced.fieldName - the name of the field being referenced.fieldType - the type descriptor of the field being referenced.public int getNameAndTypeEntry(java.lang.String name,
java.lang.String type)
name - the nametype - the typepublic java.lang.String toString()
toString in class java.lang.Object