com.google.gwt.dev.jjs.impl.gflow.constants

Class ConstantsAnalysis

java.lang.Object

com.google.gwt.dev.jjs.impl.gflow.constants.ConstantsAnalysis

All Implemented Interfaces:

Analysis<CfgNode<?>,CfgEdge,Cfg,ConstantsAssumption>, IntegratedAnalysis<CfgNode<?>,CfgEdge,CfgTransformer,Cfg,ConstantsAssumption>

public class ConstantsAnalysis
extends Object
implements Analysis<CfgNode<?>,CfgEdge,Cfg,ConstantsAssumption>, IntegratedAnalysis<CfgNode<?>,CfgEdge,CfgTransformer,Cfg,ConstantsAssumption>

Constant propagation optimization. Detects a situation when variable value is constant and replaces variable access with constant value. As of now supports only locals & parameters.

Constructor Summary

Constructors

Constructor and Description
ConstantsAnalysis()

Method Summary

Modifier and Type	Method and Description
ConstantsFlowFunction	getFlowFunction() Gets analysis flow function.
ConstantsIntegratedFlowFunction	getIntegratedFlowFunction() Gets analysis integrated flow function.
void	setInitialGraphAssumptions(Cfg graph, AssumptionMap<CfgEdge,ConstantsAssumption> assumptionMap) Gets assumptions for graph to start approximation from.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Constructor Detail

ConstantsAnalysis

public ConstantsAnalysis()

Method Detail

getFlowFunction

public ConstantsFlowFunction getFlowFunction()

Description copied from interface: Analysis

Gets analysis flow function.

Specified by:

getFlowFunction in interface Analysis<CfgNode<?>,CfgEdge,Cfg,ConstantsAssumption>

getIntegratedFlowFunction

public ConstantsIntegratedFlowFunction getIntegratedFlowFunction()

Description copied from interface: IntegratedAnalysis

Gets analysis integrated flow function.

Specified by:

getIntegratedFlowFunction in interface IntegratedAnalysis<CfgNode<?>,CfgEdge,CfgTransformer,Cfg,ConstantsAssumption>

setInitialGraphAssumptions

public void setInitialGraphAssumptions(Cfg graph,
                                       AssumptionMap<CfgEdge,ConstantsAssumption> assumptionMap)

Description copied from interface: Analysis

Gets assumptions for graph to start approximation from.

Specified by:

setInitialGraphAssumptions in interface Analysis<CfgNode<?>,CfgEdge,Cfg,ConstantsAssumption>

Specified by:

setInitialGraphAssumptions in interface IntegratedAnalysis<CfgNode<?>,CfgEdge,CfgTransformer,Cfg,ConstantsAssumption>