org.sonar.javascript.se

Class LiveVariableAnalysis

java.lang.Object

org.sonar.javascript.se.LiveVariableAnalysis

public class LiveVariableAnalysis
extends Object

This class provides information about symbols which are "live" (which value will be read) at some point of the program. See https://en.wikipedia.org/wiki/Live_variable_analysis

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LiveVariableAnalysis.Usages

Method Summary

Modifier and Type	Method and Description
static LiveVariableAnalysis	create(ControlFlowGraph cfg, Scope scope)
Set<Symbol>	getLiveInSymbols(CfgBlock block)
Set<Symbol>	getLiveOutSymbols(CfgBlock block)
LiveVariableAnalysis.Usages	getUsages()
static boolean	isRead(Usage usage)
static boolean	isWrite(Usage usage)

Methods inherited from class java.lang.Object

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

Method Detail

getLiveOutSymbols

public Set<Symbol> getLiveOutSymbols(CfgBlock block)

getLiveInSymbols

public Set<Symbol> getLiveInSymbols(CfgBlock block)

create

public static LiveVariableAnalysis create(ControlFlowGraph cfg,
                                          Scope scope)

getUsages

public LiveVariableAnalysis.Usages getUsages()

isRead

public static boolean isRead(@Nullable
                             Usage usage)

isWrite

public static boolean isWrite(@Nullable
                              Usage usage)