soot.shimple.internal
Class SValueUnitPair

java.lang.Object
  soot.tagkit.AbstractHost
      soot.AbstractValueBox
          soot.toolkits.scalar.ValueUnitPair
              soot.shimple.internal.SValueUnitPair

All Implemented Interfaces:

Serializable, EquivTo, SUnitBox, Host, UnitBox, ValueBox

public class SValueUnitPair
extends ValueUnitPair
implements SUnitBox

Extension of ValueUnitPair that implements SUnitBox. Needed by SPatchingChain. Equality is no longer dependent on the value.

Author:

Navindra Umanee

See Also:

Serialized Form

Field Summary

protected boolean

unitChanged

Fields inherited from class soot.toolkits.scalar.ValueUnitPair

unit

Constructor Summary

SValueUnitPair(Value value, Unit unit)

Method Summary

boolean	isBranchTarget() Returns true if the UnitBox is holding a Unit that is the target of a branch (ie a Unit at the beginning of a CFG block).
boolean	isUnitChanged() Indicates whether the contents of the UnitBox may have been changed.
void	setUnit(Unit u) Sets this box to contain the given unit.
void	setUnitChanged(boolean unitChanged) Updates the value of the flag used to indicate whether the contents of the UnitBox may have changed.

Methods inherited from class soot.toolkits.scalar.ValueUnitPair

canContainUnit, canContainValue, clone, equals, equivHashCode, equivTo, getUnit, hashCode, toString, toString

Methods inherited from class soot.AbstractValueBox

getValue, setValue

Methods inherited from class soot.tagkit.AbstractHost

addAllTagsOf, addTag, getTag, getTags, hasTag, removeAllTags, removeTag

Methods inherited from class java.lang.Object

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

Methods inherited from interface soot.UnitBox

canContainUnit, getUnit, toString

Methods inherited from interface soot.tagkit.Host

addAllTagsOf, addTag, getTag, getTags, hasTag, removeAllTags, removeTag

Field Detail

unitChanged

protected boolean unitChanged

Constructor Detail

SValueUnitPair

public SValueUnitPair(Value value,
                      Unit unit)

Method Detail

isBranchTarget

public boolean isBranchTarget()

Description copied from interface: UnitBox

Returns true if the UnitBox is holding a Unit that is the target of a branch (ie a Unit at the beginning of a CFG block). This is the default case.

Returns false if the UnitBox is holding a Unit that indicates the end of a CFG block and may require specialised processing for SSA.

Specified by:

isBranchTarget in interface UnitBox

Overrides:

isBranchTarget in class ValueUnitPair

See Also:

UnitBox.isBranchTarget()

setUnit

public void setUnit(Unit u)

Description copied from interface: UnitBox

Sets this box to contain the given unit. Subject to canContainValue() checks.

Specified by:

setUnit in interface UnitBox

Overrides:

setUnit in class ValueUnitPair

See Also:

UnitBox.setUnit(Unit)

isUnitChanged

public boolean isUnitChanged()

Description copied from interface: SUnitBox

Indicates whether the contents of the UnitBox may have been changed. Returns true if setUnit(Unit) has been called recently and was not followed by setUnitChanged(false).

Needed for Shimple internal Unit chain patching.

Specified by:

isUnitChanged in interface SUnitBox

See Also:

SUnitBox.isUnitChanged()

setUnitChanged

public void setUnitChanged(boolean unitChanged)

Description copied from interface: SUnitBox

Updates the value of the flag used to indicate whether the contents of the UnitBox may have changed.

Needed for Shimple internal Unit chain patching.

Specified by:

setUnitChanged in interface SUnitBox

See Also:

SUnitBox.setUnitChanged(boolean)