uk.co.badgersinfoil.jactionscript.analysis
Class Operand

java.lang.Object
  |
  +--uk.co.badgersinfoil.jactionscript.analysis.Operand

public class Operand

extends java.lang.Object

Data on which Actions operate, either arguments poped of the emulated stack, or results pushed back onto it.

The value of an operand may not be known, as the analysis isn't able to determine the the result of actions in many cases. knownValue() should be checked before using the operand's value.

Actionscript's 'undefined' value may be a source of confusion, because 'undefined' is a concrete, knowm value, making it different from an Operand whose value is 'unknown'.

Nested Class Summary

static class

Operand.ASType

Constructor Summary

Operand()

Method Summary

Operand.ASType	getType()
java.lang.Object	getValue()
boolean	knownType()
boolean	knownValue()
static Operand	mkboolean()
static Operand	mkboolean(boolean b)
static Operand	mkboolean(java.lang.Boolean b)
static Operand	mkdouble(java.lang.Double d)
static Operand	mkfloat(float f)
static Operand	mkfloat(java.lang.Float f)
static Operand	mkinteger(int i)
static Operand	mkinteger(java.lang.Integer i)
static Operand	mknull()
static Operand	mkstring(java.lang.String s)
static Operand	mkundefined()
static Operand	mkunderrun() Build a stack entry which is the result of poping from an empty stack.
static Operand	mkunknown()
void	setType(Operand.ASType type)
void	setValue(java.lang.Object val)
java.lang.String	toString()
void	unsetType()
void	unsetValue()

Methods inherited from class java.lang.Object

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

Constructor Detail

Operand

public Operand()

Method Detail

knownValue

public boolean knownValue()

knownType

public boolean knownType()

setValue

public void setValue(java.lang.Object val)

setType

public void setType(Operand.ASType type)

getValue

public java.lang.Object getValue()

getType

public Operand.ASType getType()

unsetValue

public void unsetValue()

unsetType

public void unsetType()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

mkundefined

public static Operand mkundefined()

mknull

public static Operand mknull()

mkunknown

public static Operand mkunknown()

mkunderrun

public static Operand mkunderrun()

Build a stack entry which is the result of poping from an empty stack. Currently a synonym for mkunknown().

mkstring

public static Operand mkstring(java.lang.String s)

mkinteger

public static Operand mkinteger(int i)

mkinteger

public static Operand mkinteger(java.lang.Integer i)

mkfloat

public static Operand mkfloat(float f)

mkfloat

public static Operand mkfloat(java.lang.Float f)

mkboolean

public static Operand mkboolean(boolean b)

mkboolean

public static Operand mkboolean(java.lang.Boolean b)

mkboolean

public static Operand mkboolean()

mkdouble

public static Operand mkdouble(java.lang.Double d)