Package com.ibm.wala.cast.ir.ssa
Class FixedParametersInvokeInstruction
- java.lang.Object
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- com.ibm.wala.ssa.SSAInstruction
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- com.ibm.wala.ssa.SSAAbstractInvokeInstruction
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- com.ibm.wala.cast.ir.ssa.MultiReturnValueInvokeInstruction
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- com.ibm.wala.cast.ir.ssa.FixedParametersInvokeInstruction
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public abstract class FixedParametersInvokeInstruction extends MultiReturnValueInvokeInstruction
This abstract instruction extends the abstract invoke with functionality to support invocations with a fixed number of arguments---the only case in some languages and a common case even in scripting languages.
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Nested Class Summary
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Nested classes/interfaces inherited from class com.ibm.wala.ssa.SSAInstruction
SSAInstruction.IVisitor, SSAInstruction.Visitor
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Field Summary
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Fields inherited from class com.ibm.wala.cast.ir.ssa.MultiReturnValueInvokeInstruction
results
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Fields inherited from class com.ibm.wala.ssa.SSAAbstractInvokeInstruction
exception, site
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Fields inherited from class com.ibm.wala.ssa.SSAInstruction
iindex, NO_INDEX
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Constructor Summary
Constructors Constructor Description FixedParametersInvokeInstruction(int iindex, int[] results, int[] params, int exception, CallSiteReference site)
FixedParametersInvokeInstruction(int iindex, int[] params, int exception, CallSiteReference site)
Constructor InvokeInstruction.FixedParametersInvokeInstruction(int iindex, int result, int[] params, int exception, CallSiteReference site)
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods Modifier and Type Method Description SSAInstruction
copyForSSA(SSAInstructionFactory insts, int[] defs, int[] uses)
This method is meant to be used during SSA conversion for an IR that is not in SSA form.protected abstract SSAInstruction
copyInstruction(SSAInstructionFactory insts, int[] result, int[] params, int exception)
int
getNumberOfParameters()
How many parameters does this call specify?int
getNumberOfUses()
int
getUse(int j)
int
hashCode()
void
visit(SSAInstruction.IVisitor v)
Apply an IVisitor to this instruction.-
Methods inherited from class com.ibm.wala.cast.ir.ssa.MultiReturnValueInvokeInstruction
getNumberOfReturnValues, getReturnValue
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Methods inherited from class com.ibm.wala.ssa.SSAAbstractInvokeInstruction
getCallSite, getDeclaredResultType, getDeclaredTarget, getDef, getDef, getException, getInvocationCode, getNumberOfDefs, getProgramCounter, getReceiver, hasDef, isDispatch, isFallThrough, isPEI, isSpecial, isStatic, toString
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Methods inherited from class com.ibm.wala.ssa.SSAInstruction
equals, getExceptionTypes, getValueString, toString
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Constructor Detail
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FixedParametersInvokeInstruction
public FixedParametersInvokeInstruction(int iindex, int[] results, int[] params, int exception, CallSiteReference site)
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FixedParametersInvokeInstruction
public FixedParametersInvokeInstruction(int iindex, int result, int[] params, int exception, CallSiteReference site)
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FixedParametersInvokeInstruction
public FixedParametersInvokeInstruction(int iindex, int[] params, int exception, CallSiteReference site)
Constructor InvokeInstruction. This case for void return values- Parameters:
params
-exception
-site
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Method Detail
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copyInstruction
protected abstract SSAInstruction copyInstruction(SSAInstructionFactory insts, int[] result, int[] params, int exception)
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copyForSSA
public SSAInstruction copyForSSA(SSAInstructionFactory insts, int[] defs, int[] uses)
Description copied from class:SSAInstruction
This method is meant to be used during SSA conversion for an IR that is not in SSA form. It creates a new SSAInstruction of the same type as the receiver, with a combination of the receiver's uses and defs and those from the method parameters. In particular, if the 'defs' parameter is null, then the new instruction has the same defs as the receiver. If 'defs' is not null, it must be an array with a size equal to the number of defs that the receiver instruction has. In this case, the new instruction has defs taken from the array. The uses of the new instruction work in the same way with the 'uses' parameter. Note that this only applies to CAst-based IR translation, since Java bytecode-based IR generation uses a different SSA construction mechanism. TODO: move this into the SSAInstructionFactory- Specified by:
copyForSSA
in classSSAInstruction
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getNumberOfParameters
public int getNumberOfParameters()
Description copied from class:SSAAbstractInvokeInstruction
How many parameters does this call specify?- Specified by:
getNumberOfParameters
in classSSAAbstractInvokeInstruction
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visit
public void visit(SSAInstruction.IVisitor v)
Description copied from class:SSAInstruction
Apply an IVisitor to this instruction. We invoke the appropriate IVisitor method according to the type of this instruction.- Specified by:
visit
in classSSAInstruction
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getNumberOfUses
public int getNumberOfUses()
- Overrides:
getNumberOfUses
in classSSAInstruction
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hashCode
public int hashCode()
- Specified by:
hashCode
in classSSAInstruction
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getUse
public int getUse(int j)
- Overrides:
getUse
in classSSAInstruction
- Returns:
- value number representing the jth use in this instruction. -1 means TOP (i.e., the value doesn't matter)
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