org.jikesrvm.compilers.opt.ir
Class IREnumeration.AllDefsEnum

java.lang.Object
  org.jikesrvm.compilers.opt.ir.IREnumeration.AllDefsEnum

All Implemented Interfaces:

Enumeration<Operand>

Enclosing class:

IREnumeration

public static final class IREnumeration.AllDefsEnum
extends Object
implements Enumeration<Operand>

This class implements an Enumeration of Operands. It used for holding the definitions of a particular instruction and being used as an enumeration for iterating over. It differs from other enumerations of Operand as it iterates over both implicit and explicit operands.

See Also:

SSADictionary

instructionOperands

private final Enumeration<Operand> instructionOperands

Enumeration of non-heap operands defined by the instruction

heapOperands

private final HeapOperand<?>[] heapOperands

Array of heap operands defined by the instruction

curHeapOperand

private int curHeapOperand

Current heap operand we're upto for the enumeration

implicitDefs

private final PhysicalDefUse.PDUEnumeration implicitDefs

Implicit definitions from the operator

instr

private final Instruction instr

Defining instruction

IREnumeration.AllDefsEnum

public IREnumeration.AllDefsEnum(IR ir,
                                 Instruction instr)

Construct/initialize object

Parameters:

ir - Containing IR

instr - Instruction to get definitions for

hasMoreElements

public boolean hasMoreElements()

Are there any more elements in the enumeration

Specified by:

hasMoreElements in interface Enumeration<Operand>

nextElement

public Operand nextElement()

Specified by:

nextElement in interface Enumeration<Operand>