cfg
Class LoadEntryInst

java.lang.Object
  cfg.TACInst
      cfg.LoadInst
          cfg.LoadEntryInst

public class LoadEntryInst
extends LoadInst

A class representing a three-address code load entry instruction (LoadEntryInst), which loads an entry from an indexable variable or string constant. A load entry instruction consists of a destination variable and a source operand (note: the operand must be indexable, e.g., an object variable), which are both inherited from LoadInst. A LoadEntryInst also consists of an index, which is either an int variable or constant. From TACInst it also inherits an opcode (LDENTRY).

Field Summary

Fields inherited from class cfg.LoadInst

destination, source

Fields inherited from class cfg.TACInst

BINADD, BINAND, BINDIV, BINMOD, BINMUL, BINOR, BINSUB, comments, DIRCALL, ERRPARAM, IF, INDIRCALL, LDADDR, LDCONST, LDENTRY, LDVAR, NUM_INSN_TYPES, opcode, REFPARAM, RETN, STDPARAM, STENTRY, UNNEG, UNNOT

Constructor Summary

LoadEntryInst(java.lang.String destination, java.lang.String source, java.lang.String index)
LoadEntryInst constructor

Method Summary

boolean	equals(java.lang.Object o) Compares this object with the parameter object
java.lang.String	getIndex() Get the index
java.lang.String	getString() Get string representation of instruction (without comments) (note: in general, you want to use toString() to get instruction string)
void	setIndex(java.lang.String index) Set the index
void	setSource(java.lang.String source) Set the source operand

Methods inherited from class cfg.LoadInst

getDestination, getSource, setDestination

Methods inherited from class cfg.TACInst

addComment, checkBoolConst, checkConst, checkIntConst, checkLabel, checkStrConst, checkVar, getBinaryOpcode, getComments, getOp, getOpcode, getUnaryOpcode, isBinary, isCall, isIf, isLoad, isParam, isReturn, isStore, isUnary, isValidID, removeComments, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

LoadEntryInst

public LoadEntryInst(java.lang.String destination,
                     java.lang.String source,
                     java.lang.String index)

LoadEntryInst constructor

Parameters:

destination - destination variable

source - source object (variable or string constant to load from)

index - index to load entry from in source operand (either int variable or constant)

Method Detail

setSource

public void setSource(java.lang.String source)

Set the source operand

Specified by:

setSource in class LoadInst

Parameters:

source - new source operand

getIndex

public java.lang.String getIndex()

Get the index

Returns:

index

setIndex

public void setIndex(java.lang.String index)

Set the index

Parameters:

index - new index

equals

public boolean equals(java.lang.Object o)

Compares this object with the parameter object

Overrides:

equals in class LoadInst

Parameters:

o - object to compare the reference object with

Returns:

boolean indicating whether the objects are equivalent

getString

public java.lang.String getString()

Get string representation of instruction (without comments) (note: in general, you want to use toString() to get instruction string)

Overrides:

getString in class LoadInst

Returns:

string representation of three address code instruction (without comments)