Package com.sun.tools.javac.jvm

Class LVTRanges

java.lang.Object

com.sun.tools.javac.jvm.LVTRanges

public class LVTRanges
extends Object

This class contains a one to many relation between a tree and a set of variables. The relation implies that the given tree closes the DA (definite assignment) range for the set of variables.

This is NOT part of any supported API. If you write code that depends on this, you do so at your own risk. This code and its internal interfaces are subject to change or deletion without notice.

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<Symbol.MethodSymbol,Map<JCTree,List<Symbol.VarSymbol>>>	aliveRangeClosingTrees
protected Context	context
protected static Context.Key<LVTRanges>	lvtRangesKey The context key for the LVT ranges.

Constructor Summary

Constructors

Constructor and Description
LVTRanges(Context context)

Method Summary

Modifier and Type	Method and Description
boolean	containsKey(Symbol.MethodSymbol method, JCTree tree)
List<Symbol.VarSymbol>	getVars(Symbol.MethodSymbol method, JCTree tree)
static LVTRanges	instance(Context context) Get the LVTRanges instance for this context.
List<Symbol.VarSymbol>	removeEntry(Symbol.MethodSymbol method, JCTree tree)
void	setEntry(Symbol.MethodSymbol method, JCTree tree, List<Symbol.VarSymbol> vars)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

lvtRangesKey

protected static final Context.Key<LVTRanges> lvtRangesKey

The context key for the LVT ranges.

context

protected Context context

aliveRangeClosingTrees

protected Map<Symbol.MethodSymbol,Map<JCTree,List<Symbol.VarSymbol>>> aliveRangeClosingTrees

Constructor Detail

LVTRanges

public LVTRanges(Context context)

Method Detail

instance

public static LVTRanges instance(Context context)

Get the LVTRanges instance for this context.

getVars

public List<Symbol.VarSymbol> getVars(Symbol.MethodSymbol method,
                                      JCTree tree)

containsKey

public boolean containsKey(Symbol.MethodSymbol method,
                           JCTree tree)

setEntry

public void setEntry(Symbol.MethodSymbol method,
                     JCTree tree,
                     List<Symbol.VarSymbol> vars)

removeEntry

public List<Symbol.VarSymbol> removeEntry(Symbol.MethodSymbol method,
                                          JCTree tree)

toString

public String toString()

Overrides:

toString in class Object