org.objectweb.asm.tree.analysis

Class BasicValue

java.lang.Object

org.objectweb.asm.tree.analysis.BasicValue

All Implemented Interfaces:

Value

public class BasicValue
extends java.lang.Object
implements Value

A Value that is represented with its type in a seven types type system. This type system distinguishes the UNINITIALZED, INT, FLOAT, LONG, DOUBLE, REFERENCE and RETURNADDRESS types.

Field Summary

Fields

Modifier and Type	Field and Description
static BasicValue	DOUBLE_VALUE A double value.
static BasicValue	FLOAT_VALUE A float value.
static BasicValue	INT_VALUE A byte, boolean, char, short, or int value.
static BasicValue	LONG_VALUE A long value.
static BasicValue	REFERENCE_VALUE An object or array reference value.
static BasicValue	RETURNADDRESS_VALUE A return address value (produced by a jsr instruction).
static BasicValue	UNINITIALIZED_VALUE An uninitialized value.

Constructor Summary

Constructors

Constructor and Description
BasicValue(org.objectweb.asm.Type type) Constructs a new BasicValue of the given type.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object value)
int	getSize() Returns the size of this value in 32 bits words.
org.objectweb.asm.Type	getType() Returns the Type of this value.
int	hashCode()
boolean	isReference() Returns whether this value corresponds to an object or array reference.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

UNINITIALIZED_VALUE

public static final BasicValue UNINITIALIZED_VALUE

An uninitialized value.

INT_VALUE

public static final BasicValue INT_VALUE

A byte, boolean, char, short, or int value.

FLOAT_VALUE

public static final BasicValue FLOAT_VALUE

A float value.

LONG_VALUE

public static final BasicValue LONG_VALUE

A long value.

DOUBLE_VALUE

public static final BasicValue DOUBLE_VALUE

A double value.

REFERENCE_VALUE

public static final BasicValue REFERENCE_VALUE

An object or array reference value.

RETURNADDRESS_VALUE

public static final BasicValue RETURNADDRESS_VALUE

A return address value (produced by a jsr instruction).

Constructor Detail

BasicValue

public BasicValue(org.objectweb.asm.Type type)

Constructs a new BasicValue of the given type.

Parameters:

type - the value type.

Method Detail

getType

public org.objectweb.asm.Type getType()

Returns the Type of this value.

Returns:

the Type of this value.

getSize

public int getSize()

Description copied from interface: Value

Returns the size of this value in 32 bits words. This size should be 1 for byte, boolean, char, short, int, float, object and array types, and 2 for long and double.

Specified by:

getSize in interface Value

Returns:

either 1 or 2.

isReference

public boolean isReference()

Returns whether this value corresponds to an object or array reference.

Returns:

whether this value corresponds to an object or array reference.

equals

public boolean equals(java.lang.Object value)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object