Package com.ibm.wala.cast.ir.ssa

Class AstPropertyRead

java.lang.Object

com.ibm.wala.ssa.SSAInstruction

com.ibm.wala.ssa.ReflectiveMemberAccess

com.ibm.wala.cast.ir.ssa.AbstractReflectiveGet

com.ibm.wala.cast.ir.ssa.AstPropertyRead

Direct Known Subclasses:

JavaScriptPropertyRead

public abstract class AstPropertyRead
extends AbstractReflectiveGet

Nested Class Summary

Nested classes/interfaces inherited from class com.ibm.wala.ssa.SSAInstruction

SSAInstruction.IVisitor, SSAInstruction.Visitor

Field Summary

Fields inherited from class com.ibm.wala.ssa.ReflectiveMemberAccess

memberRef, objectRef

Fields inherited from class com.ibm.wala.ssa.SSAInstruction

NO_INDEX

Constructor Summary

Constructors

Constructor	Description
AstPropertyRead(int iindex, int result, int objectRef, int memberRef)

Method Summary

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.
boolean	isPEI()
void	visit(SSAInstruction.IVisitor v)	/* (non-Javadoc)

Methods inherited from class com.ibm.wala.cast.ir.ssa.AbstractReflectiveGet

getDef, getDef, getNumberOfDefs, getNumberOfUses, hasDef, toString

Methods inherited from class com.ibm.wala.ssa.ReflectiveMemberAccess

getMemberRef, getObjectRef, getUse, hashCode, isFallThrough

Methods inherited from class com.ibm.wala.ssa.SSAInstruction

equals, getExceptionTypes, getValueString, iIndex, setInstructionIndex, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

AstPropertyRead

public AstPropertyRead(int iindex,
 int result,
 int objectRef,
 int memberRef)

Method Details

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 class SSAInstruction

isPEI

public boolean isPEI()

Overrides:

isPEI in class SSAInstruction

Returns:

true iff this instruction may throw an exception.

visit

public void visit(SSAInstruction.IVisitor v)

/* (non-Javadoc)

Specified by:

visit in class SSAInstruction

See Also:

• SSAInstruction.visit(com.ibm.wala.ssa.SSAInstruction.IVisitor)