sandmark.util.stacksimulator
Class DoubleData

java.lang.Object
  |
  +--sandmark.util.stacksimulator.StackData
        |
        +--sandmark.util.stacksimulator.PrimitiveData
              |
              +--sandmark.util.stacksimulator.DoubleData

Direct Known Subclasses:

CompositeDoubleData

class DoubleData

extends PrimitiveData

Constructor Summary

DoubleData(double value, de.fub.bytecode.generic.InstructionHandle h)

DoubleData(de.fub.bytecode.generic.InstructionHandle h)

DoubleData(java.lang.Number value, de.fub.bytecode.generic.InstructionHandle h)

Method Summary

boolean	equals(java.lang.Object o) Tests for equality between any two data elements.
int	getSize() Specifies the size of this object on the operand stack.
de.fub.bytecode.generic.Type	getType() Specifies the type of the data.
java.lang.Number	getValue()
boolean	hasDefinedValue()
boolean	isComposite()
java.lang.String	toString()
StackData	undefinedVersion() Returns the same type of stack data as this instance, without any definition.

Methods inherited from class sandmark.util.stacksimulator.StackData

getInstruction

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleData

public DoubleData(de.fub.bytecode.generic.InstructionHandle h)

DoubleData

public DoubleData(double value,
                  de.fub.bytecode.generic.InstructionHandle h)

DoubleData

public DoubleData(java.lang.Number value,
                  de.fub.bytecode.generic.InstructionHandle h)

Method Detail

getSize

public int getSize()

Description copied from class: StackData

Specifies the size of this object on the operand stack.

Specified by:

getSize in class PrimitiveData

Returns:

the size of the object in bytes, 1 or 2.

getType

public de.fub.bytecode.generic.Type getType()

Description copied from class: StackData

Specifies the type of the data.

Specified by:

getType in class PrimitiveData

Returns:

a type object which is the type (or a superclass of the type) for the data object

undefinedVersion

public StackData undefinedVersion()

Description copied from class: StackData

Returns the same type of stack data as this instance, without any definition. For example, an IntData object would return a new IntData object that has undefined value when undefinedVersion is called.

Specified by:

undefinedVersion in class StackData

Returns:

A similar instance to this object, with no definition data

isComposite

public boolean isComposite()

hasDefinedValue

public boolean hasDefinedValue()

getValue

public java.lang.Number getValue()

equals

public boolean equals(java.lang.Object o)

Description copied from class: StackData

Tests for equality between any two data elements. Two StackData objects are equal iff they have the same instruction handle as their creation point. (subclasses have more restrictions for equality)

Overrides:

equals in class StackData

Parameters:

o - the object to test equality against

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object