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Represents information for flow analysis. A FlowSet is an element of a lattice; this lattice might be described by a FlowUniverse. If add, remove, size, isEmpty, toList and contains are implemented, the lattice must be the powerset of some set.
Method Summary | |
void |
add(Object obj)
Adds obj to this . |
void |
add(Object obj,
FlowSet dest)
puts this union obj into dest . |
void |
clear()
Sets this FlowSet to the empty set (more generally, the bottom element of the lattice.) |
Object |
clone()
Clones the current FlowSet. |
boolean |
contains(Object obj)
Returns true if this FlowSet contains obj . |
void |
copy(FlowSet dest)
Copies the current FlowSet into dest. |
void |
difference(FlowSet other)
Returns the set difference (this intersect ~other) of this FlowSet and other , putting result into this . |
void |
difference(FlowSet other,
FlowSet dest)
Returns the set difference (this intersect ~other) of this FlowSet and other , putting result into dest . |
Object |
emptySet()
returns an empty set, most often more efficient than: ((FlowSet)clone()).clear() |
void |
intersection(FlowSet other)
Returns the intersection (meet) of this FlowSet and other ,
putting result into this . |
void |
intersection(FlowSet other,
FlowSet dest)
Returns the intersection (meet) of this FlowSet and other ,
putting result into dest . |
boolean |
isEmpty()
Returns true if this FlowSet is the empty set. |
Iterator |
iterator()
returns an iterator over the elements of the flowSet. |
void |
remove(Object obj)
Removes obj from this . |
void |
remove(Object obj,
FlowSet dest)
Puts this minus obj into dest . |
int |
size()
Returns the size of the current FlowSet. |
List |
toList()
Returns an unbacked list of contained objects for this FlowSet. |
void |
union(FlowSet other)
Returns the union (join) of this FlowSet and other , putting
result into this . |
void |
union(FlowSet other,
FlowSet dest)
Returns the union (join) of this FlowSet and other , putting
result into dest . |
Method Detail |
public Object clone()
public Object emptySet()
((FlowSet)clone()).clear()
public void copy(FlowSet dest)
public void clear()
public void union(FlowSet other)
other
, putting
result into this
.
public void union(FlowSet other, FlowSet dest)
other
, putting
result into dest
. dest
, other
and
this
could be the same object.
public void intersection(FlowSet other)
other
,
putting result into this
.
public void intersection(FlowSet other, FlowSet dest)
other
,
putting result into dest
. dest
,
other
and this
could be the same object.
public void difference(FlowSet other)
other
, putting result into this
.
public void difference(FlowSet other, FlowSet dest)
other
, putting result into dest
.
dest
, other
and this
could be the
same object.
public boolean isEmpty()
public int size()
public void add(Object obj)
obj
to this
.
public void add(Object obj, FlowSet dest)
this
union obj
into dest
.
public void remove(Object obj)
obj
from this
.
public void remove(Object obj, FlowSet dest)
this
minus obj
into dest
.
public boolean contains(Object obj)
obj
.
public Iterator iterator()
toList().iterator()
.
public List toList()
|
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