public class Opcode extends PatternElement
PatternElement
Constructor and Description |
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Opcode(int opcode)
Constructor.
|
Modifier and Type | Method and Description |
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boolean |
acceptBranch(Edge edge,
org.apache.bcel.generic.InstructionHandle source)
Return whether or not it is acceptable to take the given branch.
|
MatchResult |
match(org.apache.bcel.generic.InstructionHandle handle,
org.apache.bcel.generic.ConstantPoolGen cpg,
ValueNumberFrame before,
ValueNumberFrame after,
BindingSet bindingSet)
Return whether or not this element matches the given instruction with the
given Bindings in effect.
|
int |
maxOccur()
Return the maximum number of instructions this PatternElement must match
in the ByteCodePattern.
|
int |
minOccur()
Return the minimum number of instructions this PatternElement must match
in the ByteCodePattern.
|
addOrCheckDefinition, allowTrailingEdges, dominatedBy, getDominatedBy, getLabel, getNext, label, lookup, setAllowTrailingEdges, setIndex, setNext, toString
public Opcode(int opcode)
opcode
- the opcode to matchpublic MatchResult match(org.apache.bcel.generic.InstructionHandle handle, org.apache.bcel.generic.ConstantPoolGen cpg, ValueNumberFrame before, ValueNumberFrame after, BindingSet bindingSet) throws DataflowAnalysisException
PatternElement
match
in class PatternElement
handle
- the instructioncpg
- the ConstantPoolGen from the methodbefore
- the ValueNumberFrame representing values in the Java stack
frame just before the execution of the instructionafter
- the ValueNumberFrame representing values in the Java stack
frame just after the execution of the instructionbindingSet
- the set of BindingsDataflowAnalysisException
public boolean acceptBranch(Edge edge, org.apache.bcel.generic.InstructionHandle source)
PatternElement
acceptBranch
in class PatternElement
edge
- the Edge representing the branchsource
- the source instruction of the branchpublic int minOccur()
PatternElement
minOccur
in class PatternElement
public int maxOccur()
PatternElement
maxOccur
in class PatternElement
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