com.joanju.cg.bytecode
Class DefvarInstr

java.lang.Object
  com.joanju.cg.bytecode.Bytecode
      com.joanju.cg.bytecode.DefvarInstr

public class DefvarInstr
extends Bytecode

Field Summary

Fields inherited from class com.joanju.cg.bytecode.Bytecode

address, cuid, instrSet, nodeNum, xrefs

Constructor Summary

DefvarInstr()

DefvarInstr(int cuid, int address)

DefvarInstr(int cuid, int address, int symbolNameID)

Method Summary

void	calcValueSets() Calculate the value sets for the instruction.
int	getInitialValueAddr()
Opcode	getOpcode()
java.util.HashSet<java.lang.Integer>	getSources() Returns null.
int	getSymbolNameID()
java.util.HashSet<java.lang.Integer>	getValues() Get the set of values for this instruction.
java.util.HashSet<java.lang.Integer>	getWhereUsed() Returns null.
void	setInitialValueAddr(int initialValueAddr) This takes care of adding the address to {sources} as well.
void	setSymbolNameID(int defglobalAddr)
protected void	setValuesFromByteStream(java.io.DataInputStream in)
java.lang.String	toStringFromComments(InstructionSet instrs) All Bytecode instruction subclasses should override this eventually.
java.lang.String	toStringFromData() All Bytecode instruction subclasses should override this eventually.
java.lang.String	toStringFromName(InstructionSet instrs) Some subclasses should override this to return the string literal, var name, procedure name, etc.
protected void	writeValuesToByteStream(java.io.DataOutputStream out)

Methods inherited from class com.joanju.cg.bytecode.Bytecode

addSource, addWhereUsed, beforeWrite, calcValuesAgain, compareTo, equals, fetchBytesFromDB, fetchInCu, generateDataForDB, getAddress, getCuID, getNodeNum, getValuesCalcLocal, getXrefs, hashCode, initData, isDataModified, isFromDB, setAddress, setCuID, setDataBytesFromDB, setDataModified, setFromDB, setInstructionSet, setNodeNum, shouldLoadData, sourcesForXrefTarget, storeIfModified, toString, toStringFromSet

Methods inherited from class java.lang.Object

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

Constructor Detail

DefvarInstr

public DefvarInstr()

DefvarInstr

public DefvarInstr(int cuid,
                   int address)

DefvarInstr

public DefvarInstr(int cuid,
                   int address,
                   int symbolNameID)

Method Detail

calcValueSets

public void calcValueSets()
                   throws java.sql.SQLException,
                          java.io.IOException

Description copied from class: Bytecode

Calculate the value sets for the instruction.

Called during build, build-recalc, checkvals, and checkvals-recalc. Implementations should only build from external values once. Calculates which xref records are needed as well.

IMPORTANT: Should only ever be called for instructions belonging to an InstructionSet.

Specified by:

calcValueSets in class Bytecode

Throws:

java.sql.SQLException

java.io.IOException

getInitialValueAddr

public int getInitialValueAddr()
                        throws java.sql.SQLException,
                               java.io.IOException

Throws:

java.sql.SQLException

java.io.IOException

getOpcode

public Opcode getOpcode()

Specified by:

getOpcode in class Bytecode

getSymbolNameID

public int getSymbolNameID()
                    throws java.sql.SQLException,
                           java.io.IOException

Throws:

java.sql.SQLException

java.io.IOException

getSources

public java.util.HashSet<java.lang.Integer> getSources()
                                                throws java.sql.SQLException,
                                                       java.io.IOException

Description copied from class: Bytecode

Returns null. May be overridden by subclasses.

Overrides:

getSources in class Bytecode

Throws:

java.sql.SQLException

java.io.IOException

getWhereUsed

public java.util.HashSet<java.lang.Integer> getWhereUsed()
                                                  throws java.sql.SQLException,
                                                         java.io.IOException

Description copied from class: Bytecode

Returns null. May be overridden by subclasses.

Overrides:

getWhereUsed in class Bytecode

Throws:

java.sql.SQLException

java.io.IOException

getValues

public java.util.HashSet<java.lang.Integer> getValues()
                                               throws java.sql.SQLException,
                                                      java.io.IOException

Description copied from class: Bytecode

Get the set of values for this instruction. Should be overridden by most subclasses. This default implementation returns a set containing one Layout.UNRESOLVED_VALUE.

Overrides:

getValues in class Bytecode

Throws:

java.sql.SQLException

java.io.IOException

setInitialValueAddr

public void setInitialValueAddr(int initialValueAddr)

This takes care of adding the address to {sources} as well.

setSymbolNameID

public void setSymbolNameID(int defglobalAddr)

setValuesFromByteStream

protected void setValuesFromByteStream(java.io.DataInputStream in)
                                throws java.io.IOException

Specified by:

setValuesFromByteStream in class Bytecode

Throws:

java.io.IOException

toStringFromComments

public java.lang.String toStringFromComments(InstructionSet instrs)

Description copied from class: Bytecode

All Bytecode instruction subclasses should override this eventually.

Overrides:

toStringFromComments in class Bytecode

Returns:

"" if not overridden.

toStringFromData

public java.lang.String toStringFromData()

Description copied from class: Bytecode

All Bytecode instruction subclasses should override this eventually.

Overrides:

toStringFromData in class Bytecode

Returns:

"" if not overridden.

toStringFromName

public java.lang.String toStringFromName(InstructionSet instrs)

Description copied from class: Bytecode

Some subclasses should override this to return the string literal, var name, procedure name, etc.

Overrides:

toStringFromName in class Bytecode

Returns:

"" if not overridden.

writeValuesToByteStream

protected void writeValuesToByteStream(java.io.DataOutputStream out)
                                throws java.io.IOException

Specified by:

writeValuesToByteStream in class Bytecode

Throws:

java.io.IOException