com.joanju.cg.bytecode
Class PushInstr

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

Direct Known Subclasses:

PushonretInstr

public class PushInstr
extends Bytecode

Used at call sites for passing values as arguments. Subclasses: PushonretInstr.

Field Summary

protected int	paramNum
protected java.util.HashSet<java.lang.Integer>	values Stored.

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

address, cuid, instrSet, nodeNum, xrefs

Constructor Summary

PushInstr()

PushInstr(int cuid, int address)

Method Summary

void	calcValueSets() Calculate the value sets for the instruction.
protected void	checkWhereUsed() Add recalc and checkval records for internal and external where-used.
Opcode	getOpcode()
int	getParamNum()
int	getRVal()
java.util.HashSet<java.lang.Integer>	getValues() Get the set of values for this instruction.
void	setParamNum(int paramNum)
void	setRVal(int nameRVal)
protected void	setValuesFromByteStream(java.io.DataInputStream in)
java.lang.String	toStringFromData() All Bytecode instruction subclasses should override this eventually.
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, getSources, getValuesCalcLocal, getWhereUsed, getXrefs, hashCode, initData, isDataModified, isFromDB, setAddress, setCuID, setDataBytesFromDB, setDataModified, setFromDB, setInstructionSet, setNodeNum, shouldLoadData, sourcesForXrefTarget, storeIfModified, toString, toStringFromComments, toStringFromName, toStringFromSet

Methods inherited from class java.lang.Object

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

Field Detail

paramNum

protected int paramNum

values

protected java.util.HashSet<java.lang.Integer> values

Stored.

Constructor Detail

PushInstr

public PushInstr()

PushInstr

public PushInstr(int cuid,
                 int address)

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

checkWhereUsed

protected void checkWhereUsed()
                       throws java.sql.SQLException,
                              java.io.IOException

Add recalc and checkval records for internal and external where-used.

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

getParamNum

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

Throws:

java.sql.SQLException

java.io.IOException

getRVal

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

Throws:

java.sql.SQLException

java.io.IOException

getOpcode

public Opcode getOpcode()

Specified by:

getOpcode in class Bytecode

setParamNum

public void setParamNum(int paramNum)

setRVal

public void setRVal(int nameRVal)

setValuesFromByteStream

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

Specified by:

setValuesFromByteStream in class Bytecode

Throws:

java.io.IOException

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.

writeValuesToByteStream

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

Specified by:

writeValuesToByteStream in class Bytecode

Throws:

java.io.IOException