com.sun.tools.corba.se.idl.constExpr

Class Expression

java.lang.Object

com.sun.tools.corba.se.idl.constExpr.Expression

Direct Known Subclasses:

BinaryExpr, Terminal, UnaryExpr

public abstract class Expression
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static BigInteger	llMax
static BigInteger	llMin
static BigInteger	lMax
static BigInteger	lMin
static BigInteger	negOne
static BigInteger	one
static BigInteger	sMax
static BigInteger	sMin
static BigInteger	two
static BigInteger	twoPow15
static BigInteger	twoPow16
static BigInteger	twoPow31
static BigInteger	twoPow32
static BigInteger	twoPow63
static BigInteger	twoPow64
static BigInteger	ullMax
static BigInteger	ullMin
static BigInteger	ulMax
static BigInteger	ulMin
static BigInteger	usMax
static BigInteger	usMin
static BigInteger	zero

Constructor Summary

Constructors

Constructor and Description
Expression()

Method Summary

Modifier and Type	Method and Description
Object	coerceToTarget(Object obj) Coerces a number to the target type of this expression.
protected static String	defaultType(String targetType) Return the default computation type for the given target type.
abstract Object	evaluate() Compute the value of this expression.
String	rep() Get the representation of this expression.
void	rep(String rep) Set the representation of this expression.
protected BigInteger	toSignedTarget(BigInteger b) Coerces an integral value (BigInteger) to its corresponding signed representation, if the target type of this expression is signed.
protected BigInteger	toUnsigned(BigInteger b) Return the unsigned value of a BigInteger.
protected BigInteger	toUnsignedTarget(BigInteger b) Coerces an integral value (BigInteger) to its corresponding unsigned representation, if the target type of this expression is unsigned.
String	type() Get the target type of this expression.
void	type(String type) Set the target type of this expression.
Object	value() Get the value of this expression.
void	value(Object value) Set the value of this expression.

Methods inherited from class java.lang.Object

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

Field Detail

negOne

public static final BigInteger negOne

zero

public static final BigInteger zero

one

public static final BigInteger one

two

public static final BigInteger two

twoPow15

public static final BigInteger twoPow15

twoPow16

public static final BigInteger twoPow16

twoPow31

public static final BigInteger twoPow31

twoPow32

public static final BigInteger twoPow32

twoPow63

public static final BigInteger twoPow63

twoPow64

public static final BigInteger twoPow64

sMax

public static final BigInteger sMax

sMin

public static final BigInteger sMin

usMax

public static final BigInteger usMax

usMin

public static final BigInteger usMin

lMax

public static final BigInteger lMax

lMin

public static final BigInteger lMin

ulMax

public static final BigInteger ulMax

ulMin

public static final BigInteger ulMin

llMax

public static final BigInteger llMax

llMin

public static final BigInteger llMin

ullMax

public static final BigInteger ullMax

ullMin

public static final BigInteger ullMin

Constructor Detail

Expression

public Expression()

Method Detail

evaluate

public abstract Object evaluate()
                         throws EvaluationException

Compute the value of this expression.

Throws:

EvaluationException

value

public void value(Object value)

Set the value of this expression.

value

public Object value()

Get the value of this expression.

rep

public void rep(String rep)

Set the representation of this expression.

rep

public String rep()

Get the representation of this expression.

type

public void type(String type)

Set the target type of this expression.

type

public String type()

Get the target type of this expression.

defaultType

protected static String defaultType(String targetType)

Return the default computation type for the given target type.

coerceToTarget

public Object coerceToTarget(Object obj)

Coerces a number to the target type of this expression.

Parameters:

obj - The number to coerce.

Returns:

the value of number coerced to the (target) type of this expression.

toUnsignedTarget

protected BigInteger toUnsignedTarget(BigInteger b)

Coerces an integral value (BigInteger) to its corresponding unsigned representation, if the target type of this expression is unsigned.

Parameters:

b - The BigInteger to be coerced.

Returns:

the value of an integral type coerced to its corresponding unsigned integral type, if the target type of this expression is unsigned.

toSignedTarget

protected BigInteger toSignedTarget(BigInteger b)

Coerces an integral value (BigInteger) to its corresponding signed representation, if the target type of this expression is signed.

Parameters:

b - The BigInteger to be coerced.

Returns:

the value of an integral type coerced to its corresponding signed integral type, if the target type of this expression is signed.

toUnsigned

protected BigInteger toUnsigned(BigInteger b)

Return the unsigned value of a BigInteger.