public class MathInstruction extends TypedInstruction
Constants
interface.
Changing the type or operation of the instruction will automatically
update the underlying opcode.Modifier and Type | Method and Description |
---|---|
void |
acceptVisit(BCVisitor visit)
Accept a visit from a
BCVisitor , calling the appropriate methods
to notify the visitor that it has entered this entity, and
to provide it with the proper callbacks for each sub-entity owned
by this one. |
boolean |
equalsInstruction(Instruction other)
MathInstructions are equal if they have the same operation and type,
or the operation and type of either is unset.
|
int |
getLogicalStackChange()
Return the logical number of stack positions changed by this
instruction.
|
int |
getOperation()
Return the operation for this math instruction; will be one of the
math constant defined in
Constants , or -1 if unset. |
int |
getStackChange()
Return the number of stack positions this instruction pushes
or pops during its execution.
|
String |
getTypeName()
Return the type name for this instruction.
|
MathInstruction |
setOperation(int operation)
Set the math operation to be performed.
|
TypedInstruction |
setType(String type)
Set the type of this instruction.
|
getType, getTypeBC, setType, setType
getByteIndex, getClassLoader, getCode, getLineNumber, getName, getOpcode, getPool, getProject, isValid
public int getStackChange()
Instruction
getStackChange
in class Instruction
public int getLogicalStackChange()
Instruction
getLogicalStackChange
in class Instruction
public String getTypeName()
TypedInstruction
getTypeName
in class TypedInstruction
public TypedInstruction setType(String type)
TypedInstruction
setType
in class TypedInstruction
public MathInstruction setOperation(int operation)
Constants
.public int getOperation()
Constants
, or -1 if unset.public boolean equalsInstruction(Instruction other)
equalsInstruction
in class Instruction
public void acceptVisit(BCVisitor visit)
VisitAcceptor
BCVisitor
, calling the appropriate methods
to notify the visitor that it has entered this entity, and
to provide it with the proper callbacks for each sub-entity owned
by this one.acceptVisit
in interface VisitAcceptor
acceptVisit
in class Instruction
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