jist.runtime
Class RewriterFlow.FlowInfoMap

java.lang.Object
  jist.runtime.RewriterFlow.FlowInfoMap

Enclosing class:

RewriterFlow

public static class RewriterFlow.FlowInfoMap
extends java.lang.Object

An accessor class to conveniently query data flow information.

Field Summary

private java.util.HashMap	frames hashmap: instructionhandle to frames.
private java.util.HashMap	pointsTo hashmap: instructionhandle to pointsTo instruction handles.

Constructor Summary

private

RewriterFlow.FlowInfoMap(java.util.HashMap frames, java.util.HashMap pointsTo) Initialize flow information with given hashmap.

Method Summary

org.apache.bcel.verifier.structurals.Frame

getFrame(org.apache.bcel.generic.InstructionHandle ih) Return frame information BEFORE given instruction handle.

Methods inherited from class java.lang.Object

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

Field Detail

frames

private java.util.HashMap frames

hashmap: instructionhandle to frames.

pointsTo

private java.util.HashMap pointsTo

hashmap: instructionhandle to pointsTo instruction handles.

Constructor Detail

RewriterFlow.FlowInfoMap

private RewriterFlow.FlowInfoMap(java.util.HashMap frames,
                                 java.util.HashMap pointsTo)

Initialize flow information with given hashmap.

Parameters:

frames - hashmap of frame at beginning of each instruction

pointsTo - hashmap of instructions that pointTo each instruction

Method Detail

getFrame

public org.apache.bcel.verifier.structurals.Frame getFrame(org.apache.bcel.generic.InstructionHandle ih)

Return frame information BEFORE given instruction handle.

Parameters:

ih - BCEL instruction handle (program counter)

Returns:

frame BEFORE instruction executes