kilim.analysis

Class Frame

java.lang.Object

kilim.analysis.Frame

public class Frame
extends java.lang.Object

An activation frame.

Constructor Summary

Constructors

Constructor and Description
Frame(int nLocals, int nStack)
Frame(java.lang.String classDesc, MethodNode method)

Method Summary

Modifier and Type	Method and Description
Frame	dup()
static Value[]	dupArray(Value[] a)
boolean	equals(java.lang.Object other)
Value	getLocal(int local)
Value	getLocal(int local, int opcode)
int	getMaxLocals()
Value	getStack(int pos)
int	getStackLen()
int	hashCode()
Frame	merge(Detector det, Frame inframe, boolean localsOnly, Usage usage) Merge the local variables and stack from the incoming frame into the current frame.
Value	pop()
void	popn(int n)
Value	popWord()
Value	push(Value v)
int	setLocal(int local, Value v)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Frame

public Frame(int nLocals,
             int nStack)

Frame

public Frame(java.lang.String classDesc,
             MethodNode method)

Method Detail

merge

public Frame merge(Detector det,
                   Frame inframe,
                   boolean localsOnly,
                   Usage usage)

Merge the local variables and stack from the incoming frame into the current frame.

Parameters:

inframe - -- incoming frame

localsOnly - -- true for exception handlers, because the stack is cleared.

usage - -- Only those locals are merged that are deemed live (@see Usage#isLiveIn(int))

Returns:

this, if the merge didn't change anything or a new Frame if the operation changed a slot on the stack or a local variable

dupArray

public static Value[] dupArray(Value[] a)

dup

public Frame dup()

setLocal

public int setLocal(int local,
                    Value v)

getLocal

public Value getLocal(int local,
                      int opcode)

getLocal

public Value getLocal(int local)

getStack

public Value getStack(int pos)

push

public Value push(Value v)

pop

public Value pop()

popWord

public Value popWord()

popn

public void popn(int n)

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getMaxLocals

public int getMaxLocals()

getStackLen

public int getStackLen()