Package edu.umd.cs.findbugs.ba.jsr305
Class ForwardTypeQualifierDataflowAnalysis
java.lang.Object
edu.umd.cs.findbugs.ba.BasicAbstractDataflowAnalysis<TypeQualifierValueSet>
edu.umd.cs.findbugs.ba.AbstractDataflowAnalysis<TypeQualifierValueSet>
edu.umd.cs.findbugs.ba.jsr305.TypeQualifierDataflowAnalysis
edu.umd.cs.findbugs.ba.jsr305.ForwardTypeQualifierDataflowAnalysis
- All Implemented Interfaces:
DataflowAnalysis<TypeQualifierValueSet>
Forward type qualifier dataflow analysis.
-
Field Summary
FieldsFields inherited from class edu.umd.cs.findbugs.ba.jsr305.TypeQualifierDataflowAnalysis
cfg, cpg, DEBUG_VERBOSE, typeQualifierValue, vnaDataflow, xmethod
-
Constructor Summary
ConstructorsConstructorDescriptionForwardTypeQualifierDataflowAnalysis
(DepthFirstSearch dfs, XMethod xmethod, CFG cfg, ValueNumberDataflow vnaDataflow, org.apache.bcel.generic.ConstantPoolGen cpg, TypeQualifierValue<?> typeQualifierValue) Constructor. -
Method Summary
Modifier and TypeMethodDescriptiongetBlockOrder
(CFG cfg1) Return the BlockOrder specifying the order in which BasicBlocks should be visited in the main dataflow loop.boolean
Returns true if the analysis is forwards, false if backwards.protected void
propagateAcrossPhiNode
(TypeQualifierValueSet fact, ValueNumber sourceVN, ValueNumber targetVN) private void
registerConstantPushSource
(Location location) private void
registerConstantSource
(Location location, Object constantValue) private void
registerFieldLoadSource
(Location location) private void
private void
registerLDC2ValueSource
(Location location) private void
registerLDCValueSource
(Location location) private void
registerOtherSource
(Location location) private void
private void
registerPushNullSource
(Location location) private void
registerReturnValueSource
(Location location) void
This method must be called before the dataflow analysis is executed.private void
registerTopOfStackSource
(SourceSinkType sourceSinkType, Location location, javax.annotation.meta.When when, boolean interproc, Object constantValue) Methods inherited from class edu.umd.cs.findbugs.ba.jsr305.TypeQualifierDataflowAnalysis
copy, createFact, edgeTransfer, getSourceSinkInfoSet, initEntryFact, isFactValid, isIdentifyFunctionForTypeQualifiers, isTop, makeFactTop, meetInto, primitiveType, registerSourceSink, same, transferInstruction
Methods inherited from class edu.umd.cs.findbugs.ba.AbstractDataflowAnalysis
getFactAfterLocation, getFactAtLocation, transfer
Methods inherited from class edu.umd.cs.findbugs.ba.BasicAbstractDataflowAnalysis
factToString, finishIteration, getFactOnEdge, getLastUpdateTimestamp, getResultFact, getStartFact, resultFactIterator, setLastUpdateTimestamp, startIteration
-
Field Details
-
dfs
-
-
Constructor Details
-
ForwardTypeQualifierDataflowAnalysis
public ForwardTypeQualifierDataflowAnalysis(DepthFirstSearch dfs, XMethod xmethod, CFG cfg, ValueNumberDataflow vnaDataflow, org.apache.bcel.generic.ConstantPoolGen cpg, TypeQualifierValue<?> typeQualifierValue) Constructor.- Parameters:
dfs
- DepthFirstSearch on the analyzed methodxmethod
- XMethod for the analyzed methodcfg
- CFG of the analyzed methodvnaDataflow
- ValueNumberDataflow on the analyzed methodcpg
- ConstantPoolGen of the analyzed methodtypeQualifierValue
- TypeQualifierValue representing type qualifier the analysis should check
-
-
Method Details
-
getBlockOrder
Description copied from interface:DataflowAnalysis
Return the BlockOrder specifying the order in which BasicBlocks should be visited in the main dataflow loop.- Parameters:
cfg1
- the CFG upon which we're performing dataflow analysis
-
isForwards
public boolean isForwards()Description copied from interface:DataflowAnalysis
Returns true if the analysis is forwards, false if backwards. -
registerSourceSinkLocations
Description copied from class:TypeQualifierDataflowAnalysis
This method must be called before the dataflow analysis is executed.- Specified by:
registerSourceSinkLocations
in classTypeQualifierDataflowAnalysis
- Throws:
DataflowAnalysisException
-
registerInstructionSources
- Throws:
DataflowAnalysisException
-
registerLDCValueSource
- Throws:
DataflowAnalysisException
-
registerLDC2ValueSource
- Throws:
DataflowAnalysisException
-
registerPushNullSource
- Throws:
DataflowAnalysisException
-
registerConstantSource
private void registerConstantSource(Location location, @CheckForNull Object constantValue) throws DataflowAnalysisException - Throws:
DataflowAnalysisException
-
registerOtherSource
- Throws:
DataflowAnalysisException
-
registerConstantPushSource
- Throws:
DataflowAnalysisException
-
registerReturnValueSource
- Throws:
DataflowAnalysisException
-
registerFieldLoadSource
- Throws:
DataflowAnalysisException
-
registerTopOfStackSource
private void registerTopOfStackSource(SourceSinkType sourceSinkType, Location location, javax.annotation.meta.When when, boolean interproc, @CheckForNull Object constantValue) throws DataflowAnalysisException - Throws:
DataflowAnalysisException
-
registerParameterSources
private void registerParameterSources() -
propagateAcrossPhiNode
protected void propagateAcrossPhiNode(TypeQualifierValueSet fact, ValueNumber sourceVN, ValueNumber targetVN) - Specified by:
propagateAcrossPhiNode
in classTypeQualifierDataflowAnalysis
-