com.google.javascript.jscomp

Class LiveVariablesAnalysis.LiveVariableLattice

java.lang.Object

com.google.javascript.jscomp.LiveVariablesAnalysis.LiveVariableLattice

All Implemented Interfaces:

LatticeElement

Enclosing class:

LiveVariablesAnalysis

static class LiveVariablesAnalysis.LiveVariableLattice
extends java.lang.Object
implements LatticeElement

The lattice that stores the liveness of all local variables at a given point in the program. The whole lattice is the power set of all local variables and a variable is live if it is in the set.

Field Summary

Fields

Modifier and Type	Field and Description
private BitSet	liveSet

Constructor Summary

Constructors

Modifier	Constructor and Description
private	LiveVariableLattice(int numVars)
private	LiveVariableLattice(LiveVariablesAnalysis.LiveVariableLattice other)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other)
int	hashCode()
boolean	isLive(int index)
boolean	isLive(Var v)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

liveSet

private final BitSet liveSet

Constructor Detail

LiveVariableLattice

private LiveVariableLattice(int numVars)

Parameters:

numVars - Number of all local variables.

LiveVariableLattice

private LiveVariableLattice(LiveVariablesAnalysis.LiveVariableLattice other)

Method Detail

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

isLive

public boolean isLive(Var v)

isLive

public boolean isLive(int index)

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object