Package edu.umd.cs.findbugs.ba.ca
Class CallListAnalysis
- java.lang.Object
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- edu.umd.cs.findbugs.ba.BasicAbstractDataflowAnalysis<Fact>
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- edu.umd.cs.findbugs.ba.AbstractDataflowAnalysis<CallList>
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- edu.umd.cs.findbugs.ba.ca.CallListAnalysis
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- All Implemented Interfaces:
DataflowAnalysis<CallList>
public class CallListAnalysis extends AbstractDataflowAnalysis<CallList>
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Constructor Summary
Constructors Constructor Description CallListAnalysis(CFG cfg, DepthFirstSearch dfs, org.apache.bcel.generic.ConstantPoolGen cpg)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
copy(CallList source, CallList dest)
Copy dataflow facts.CallList
createFact()
Create empty (uninitialized) dataflow facts for one program point.BlockOrder
getBlockOrder(CFG cfg)
Return the BlockOrder specifying the order in which BasicBlocks should be visited in the main dataflow loop.void
initEntryFact(CallList fact)
Initialize the "entry" fact for the graph.boolean
isFactValid(CallList fact)
Determine whether the given fact is valid (neither top nor bottom).boolean
isForwards()
Returns true if the analysis is forwards, false if backwards.boolean
isTop(CallList fact)
Is the given fact the top value.void
makeFactTop(CallList fact)
Make given fact the top value.void
meetInto(CallList start, Edge edge, CallList result)
Meet a dataflow fact associated with an incoming edge into another fact.boolean
same(CallList a, CallList b)
Are given dataflow facts the same?void
transferInstruction(org.apache.bcel.generic.InstructionHandle handle, BasicBlock basicBlock, CallList fact)
Transfer function for a single instruction.-
Methods inherited from class edu.umd.cs.findbugs.ba.AbstractDataflowAnalysis
getFactAfterLocation, getFactAtLocation, transfer
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Methods inherited from class edu.umd.cs.findbugs.ba.BasicAbstractDataflowAnalysis
edgeTransfer, factToString, finishIteration, getFactOnEdge, getLastUpdateTimestamp, getResultFact, getStartFact, resultFactIterator, setLastUpdateTimestamp, startIteration
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Constructor Detail
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CallListAnalysis
public CallListAnalysis(CFG cfg, DepthFirstSearch dfs, org.apache.bcel.generic.ConstantPoolGen cpg)
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Method Detail
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initEntryFact
public void initEntryFact(CallList fact)
Description copied from interface:DataflowAnalysis
Initialize the "entry" fact for the graph.
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isForwards
public boolean isForwards()
Description copied from interface:DataflowAnalysis
Returns true if the analysis is forwards, false if backwards.
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getBlockOrder
public BlockOrder getBlockOrder(CFG cfg)
Description copied from interface:DataflowAnalysis
Return the BlockOrder specifying the order in which BasicBlocks should be visited in the main dataflow loop.- Parameters:
cfg
- the CFG upon which we're performing dataflow analysis
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makeFactTop
public void makeFactTop(CallList fact)
Description copied from interface:DataflowAnalysis
Make given fact the top value.
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isTop
public boolean isTop(CallList fact)
Description copied from interface:DataflowAnalysis
Is the given fact the top value.
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createFact
public CallList createFact()
Description copied from interface:DataflowAnalysis
Create empty (uninitialized) dataflow facts for one program point. A valid value will be copied into it before it is used.
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same
public boolean same(CallList a, CallList b)
Description copied from interface:DataflowAnalysis
Are given dataflow facts the same?
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meetInto
public void meetInto(CallList start, Edge edge, CallList result) throws DataflowAnalysisException
Description copied from interface:DataflowAnalysis
Meet a dataflow fact associated with an incoming edge into another fact. This is used to determine the start fact for a basic block.- Parameters:
start
- the predecessor fact (incoming edge)edge
- the edge from the predecessorresult
- the result fact- Throws:
DataflowAnalysisException
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copy
public void copy(CallList source, CallList dest)
Description copied from interface:DataflowAnalysis
Copy dataflow facts.
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transferInstruction
public void transferInstruction(org.apache.bcel.generic.InstructionHandle handle, BasicBlock basicBlock, CallList fact) throws DataflowAnalysisException
Description copied from class:AbstractDataflowAnalysis
Transfer function for a single instruction.- Specified by:
transferInstruction
in classAbstractDataflowAnalysis<CallList>
- Parameters:
handle
- the instructionbasicBlock
- the BasicBlock containing the instruction; needed to disambiguate instructions in inlined JSR subroutinesfact
- which should be modified based on the instruction- Throws:
DataflowAnalysisException
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isFactValid
public boolean isFactValid(CallList fact)
Description copied from class:AbstractDataflowAnalysis
Determine whether the given fact is valid (neither top nor bottom).- Specified by:
isFactValid
in classAbstractDataflowAnalysis<CallList>
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