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ConstantPool Class Reference

Inheritance diagram for ConstantPool:[legend]Collaboration diagram for ConstantPool:[legend]List of all members.

Public Methods
	ConstantPool (Constant[] constant_pool)
void	accept (Visitor v)
String	constantToString (int index, byte tag) throws ClassFormatError
String	constantToString (Constant c) throws ClassFormatError
ConstantPool	copy ()
void	dump (DataOutputStream file) throws IOException
Constant	getConstant (int index)
Constant	getConstant (int index, byte tag) throws ClassFormatError
Constant[]	getConstantPool ()
String	getConstantString (int index, byte tag) throws ClassFormatError
int	getLength ()
void	setConstant (int index, Constant constant)
void	setConstantPool (Constant[] constant_pool)
String	toString ()
	ConstantPool (Constant[] constant_pool)
void	accept (Visitor v)
String	constantToString (int index, byte tag) throws ClassFormatError
String	constantToString (Constant c) throws ClassFormatError
ConstantPool	copy ()
void	dump (DataOutputStream file) throws IOException
Constant	getConstant (int index)
Constant	getConstant (int index, byte tag) throws ClassFormatError
Constant[]	getConstantPool ()
String	getConstantString (int index, byte tag) throws ClassFormatError
int	getLength ()
void	setConstant (int index, Constant constant)
void	setConstantPool (Constant[] constant_pool)
String	toString ()
Private Methods
	ConstantPool (DataInputStream file) throws IOException, ClassFormatError
	ConstantPool (DataInputStream file) throws IOException, ClassFormatError
Static Private Methods
final String	escape (String str)
final String	escape (String str)
Private Attributes
int	constant_pool_count
Constant[]	constant_pool
Constant[]	constant_pool

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Detailed Description

This class represents the constant pool, i.e. a table of constants. It may contain null references, due to the JVM specification that skips an entry after an 8-byte constant (double, long) entry.

Version:

Id:

ConstantPool.java,v 1.1.1.1 2002/01/24 03:44:01 pserver Exp

See also:

Constant

Author:

M. Dahm

Definition at line 15 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java.

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Constructor & Destructor Documentation

ConstantPool::ConstantPool (  Constant   constant_pool[] )  [inline]

Parameters: constant_pool   Array of constants Definition at line 22 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java.

ConstantPool::ConstantPool (  DataInputStream   file )  [inline, private]

Read constants from given file stream. Parameters: file   Input stream Exceptions: IOException   ClassFormatError   Definition at line 33 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java.

ConstantPool::ConstantPool (  Constant   constant_pool[] )  [inline]

Parameters: constant_pool   Array of constants Definition at line 22 of file src/de/fub/bytecode/classfile/ConstantPool.java.

ConstantPool::ConstantPool (  DataInputStream   file )  [inline, private]

Read constants from given file stream. Parameters: file   Input stream Exceptions: IOException   ClassFormatError   Definition at line 33 of file src/de/fub/bytecode/classfile/ConstantPool.java.

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Member Function Documentation

void ConstantPool::accept (  Visitor   v )  [inline]

Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects. Parameters: v   Visitor object Definition at line 65 of file src/de/fub/bytecode/classfile/ConstantPool.java.

void ConstantPool::accept (  Visitor   v )  [inline]

Called by objects that are traversing the nodes of the tree implicitely defined by the contents of a Java class. I.e., the hierarchy of methods, fields, attributes, etc. spawns a tree of objects. Parameters: v   Visitor object Definition at line 65 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java.

String ConstantPool::constantToString (  Constant   c )  [inline]

Resolve constant to a string representation. Parameters: constant   Constant to be printed Returns: String representation Definition at line 88 of file src/de/fub/bytecode/classfile/ConstantPool.java.

String ConstantPool::constantToString (  int   index, byte   tag )  [inline]

Retrieve constant at `index' from constant pool and resolve it to a string representation. Parameters: index   of constant in constant pool tag   expected type Returns: String representation Definition at line 76 of file src/de/fub/bytecode/classfile/ConstantPool.java.

String ConstantPool::constantToString (  Constant   c )  [inline]

Resolve constant to a string representation. Parameters: constant   Constant to be printed Returns: String representation Definition at line 88 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java.

String ConstantPool::constantToString (  int   index, byte   tag )  [inline]

Retrieve constant at `index' from constant pool and resolve it to a string representation. Parameters: index   of constant in constant pool tag   expected type Returns: String representation Definition at line 76 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java. Referenced by CodeHTML::codeToHTML(), Utility::codeToString(), InvokeInstruction::toString(), FieldInstruction::toString(), and CPInstruction::toString().

ConstantPool ConstantPool::copy (    )  [inline]

Returns: deep copy of this constant pool Definition at line 138 of file src/de/fub/bytecode/classfile/ConstantPool.java.

ConstantPool ConstantPool::copy (    )  [inline]

Returns: deep copy of this constant pool Definition at line 137 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java. Referenced by JavaClass::copy().

void ConstantPool::dump (  DataOutputStream   file )  [inline]

Dump constant pool to file stream in binary format. Parameters: file   Output file stream Exceptions: IOException   Definition at line 160 of file src/de/fub/bytecode/classfile/ConstantPool.java.

void ConstantPool::dump (  DataOutputStream   file )  [inline]

Dump constant pool to file stream in binary format. Parameters: file   Output file stream Exceptions: IOException   Definition at line 159 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java. Referenced by JavaClass::dump().

Constant ConstantPool::getConstant (  int   index, byte   tag )  [inline]

Get constant from constant pool and check whether it has the expected type. Parameters: index   Index in constant pool tag   Tag of expected constant, i.e., its type Returns: Constant value See also: Constant Exceptions: ClassFormatError   Definition at line 206 of file src/de/fub/bytecode/classfile/ConstantPool.java.

Constant ConstantPool::getConstant (  int   index )  [inline]

Get constant from constant pool. Parameters: index   Index in constant pool Returns: Constant value See also: Constant Definition at line 193 of file src/de/fub/bytecode/classfile/ConstantPool.java.

Constant ConstantPool::getConstant (  int   index, byte   tag )  [inline]

Get constant from constant pool and check whether it has the expected type. Parameters: index   Index in constant pool tag   Tag of expected constant, i.e. its type Returns: Constant value See also: Constant Exceptions: ClassFormatError   Definition at line 205 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java.

Constant ConstantPool::getConstant (  int   index )  [inline]

Get constant from constant pool. Parameters: index   Index in constant pool Returns: Constant value See also: Constant Definition at line 192 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java. Referenced by Unknown::Unknown(), CodeHTML::codeToHTML(), Utility::codeToString(), FieldOrMethod::getClassName(), LocalVariable::getName(), FieldOrMethod::getName(), PMGClass::getPMGClassName(), PMGClass::getPMGName(), Signature::getSignature(), LocalVariable::getSignature(), FieldOrMethod::getSignature(), SourceFile::getSourceFileName(), LDC2_W::getType(), LDC::getType(), ClassInfo::loadInterfaces(), Method::toString(), InvokeInstruction::toString(), InnerClass::toString(), CPInstruction::toString(), and ConstantValue::toString().

Constant [] ConstantPool::getConstantPool (    )  [inline]

Returns: Array of constants. See also: Constant Definition at line 226 of file src/de/fub/bytecode/classfile/ConstantPool.java.

Constant [] ConstantPool::getConstantPool (    )  [inline]

Returns: Array of constants. See also: Constant Definition at line 225 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java. Referenced by ConstantPoolGen::ConstantPoolGen().

String ConstantPool::getConstantString (  int   index, byte   tag )  [inline]

Get string from constant pool and bypass the indirection of `ConstantClass' and `ConstantString' objects. I.e. these classes have an index field that points to another entry of the constant pool of type `ConstantUtf8' which contains the real data. Parameters: index   Index in constant pool tag   Tag of expected constant, either ConstantClass or ConstantString Returns: Contents of string reference See also: ConstantClass , ConstantString Exceptions: ClassFormatError   Definition at line 240 of file src/de/fub/bytecode/classfile/ConstantPool.java.

String ConstantPool::getConstantString (  int   index, byte   tag )  [inline]

Get string from constant pool and bypass the indirection of `ConstantClass' and `ConstantString' objects. I.e. these classes have an index field that points to another entry of the constant pool of type `ConstantUtf8' which contains the real data. Parameters: index   Index in constant pool tag   Tag of expected constant, either ConstantClass or ConstantString Returns: Contents of string reference See also: ConstantClass , ConstantString Exceptions: ClassFormatError   Definition at line 239 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java. Referenced by JavaClass::JavaClass(), CodeHTML::codeToHTML(), FieldOrMethod::getClassName(), ExceptionTable::getExceptionNames(), CPInstruction::getType(), MethodInfo::loadExceptions(), Class2HTML::referenceClass(), InnerClass::toString(), ExceptionTable::toString(), and CodeException::toString().

int ConstantPool::getLength (    )  [inline]

Returns: Length of constant pool. Definition at line 270 of file src/de/fub/bytecode/classfile/ConstantPool.java.

int ConstantPool::getLength (    )  [inline]

Returns: Length of constant pool. Definition at line 270 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java. Referenced by JavaClass::toString().

void ConstantPool::setConstant (  int   index, Constant   constant )  [inline]

Parameters: constant   Constant to set Definition at line 277 of file src/de/fub/bytecode/classfile/ConstantPool.java.

void ConstantPool::setConstant (  int   index, Constant   constant )  [inline]

Parameters: constant   Constant to set Definition at line 277 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java.

void ConstantPool::setConstantPool (  Constant   constant_pool[] )  [inline]

Parameters: constant_pool   Definition at line 283 of file src/de/fub/bytecode/classfile/ConstantPool.java.

void ConstantPool::setConstantPool (  Constant   constant_pool[] )  [inline]

Parameters: constant_pool   Definition at line 283 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java.

String ConstantPool::toString (    )  [inline]

Returns: String representation. Definition at line 290 of file src/de/fub/bytecode/classfile/ConstantPool.java.

String ConstantPool::toString (    )  [inline]

Returns: String representation. Definition at line 290 of file lib/jpf/de/fub/bytecode/classfile/ConstantPool.java.

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The documentation for this class was generated from the following files:

• lib/jpf/de/fub/bytecode/classfile/ConstantPool.java
• src/de/fub/bytecode/classfile/ConstantPool.java

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