org.problets.domain.model.variable.aggregate
Class ErrorVarModel

java.lang.Object
  org.problets.domain.model.DomainModel
      org.problets.domain.model.variable.AbstractVarModel
          org.problets.domain.model.variable.aggregate.ErrorVarModel

All Implemented Interfaces:

java.lang.Cloneable

public class ErrorVarModel
extends AbstractVarModel

Class: ErrorVarModel Purpose: This class acts as a place holder for non-existent variables. For example, when an out of bounds access to an array occurs, an object of this class will be returned.

Field Summary

Fields inherited from class org.problets.domain.model.DomainModel

BOOLEAN, BREAKPOINT, CHARACTER, DOUBLE_PRECISION_REAL, ERROR_TYPE, EVAL_STATUS, expACTION, expASSIGNMENT, expAUTO_DEALLOCATION, expCALL, expCONDITION, expDECLARATION, expDEREFERENCING, expDYNAMIC_ALLOCATION, expDYNAMIC_ALLOCATION_INITIALIZATION, expDYNAMIC_DEALLOCATION, expELSE_CLAUSE, expERROR, expEXECUTION, expIF_CLAUSE, expINITIALIZATION, expINPUT, expPARAMETER_PASSING, expPRINT, expQUESTIONABLE, expREFERENCING, expRETURN, expRUNTIME_ERROR, expSEMANTIC_ERROR, expSYNTAX_ERROR, expUPDATE, IDENTITY, MAX_OBJECT_IDENTITY, MIN_OBJECT_IDENTITY, QUADRUPLE_PRECISION_REAL, RUNTIME_ERROR, SEMANTIC_ERROR, SIGNED_INTEGER, SIGNED_LONG, SIGNED_SHORT, SINGLE_PRECISION_REAL, SYNTAX_ERROR, UNDEFINED_TYPE, UNSIGNED_INTEGER, UNSIGNED_LONG, UNSIGNED_SHORT, WARNING

Constructor Summary

ErrorVarModel(java.lang.String inputName, java.lang.String inputType)
Creates a new error variable

Method Summary

void	explainObject(StackModel stack, HeapModel heap, Behavior behavior, java.lang.String statement, int event, int lineNumber, boolean abbreviated) To generate error messages for arrays after execution.
void	explainProcess(RunEnv runEnv, Behavior behavior, java.lang.String statement, int event, int lineNumber) Executes a statement and provides an explanation based on what type of statement was executed.
void	getCode(java.util.Vector codeText, java.lang.String codeType, java.lang.String template, int lineNumber) Generates code for the template before execution
java.lang.String[]	getPossibleErrors() Returns the possible errors for this variable
static void	main(java.lang.String[] args) For Debugging
void	print() Prints the value of the error variable
void	setName(java.lang.String inName) Assigns the name of the ErrorVarModel.

Methods inherited from class org.problets.domain.model.variable.AbstractVarModel

clone, getAllocated, getAssigned, getDeclared, getMetaDataType, getName, getType, getValue, getValueDifference, resetAllocated, resetDeclared, resetFlags, setAllocated, setDeclared, setValue

Methods inherited from class org.problets.domain.model.DomainModel

getId, getIdName, grade

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ErrorVarModel

public ErrorVarModel(java.lang.String inputName,
                     java.lang.String inputType)

Creates a new error variable

Parameters:

inputName - the name of the error variable

inputType - the type of the variable this error variable models

Method Detail

setName

public void setName(java.lang.String inName)

Assigns the name of the ErrorVarModel. Used by ArrayModel.getElement

Parameters:

inName - the new name for the ErrorVarModel

getCode

public void getCode(java.util.Vector codeText,
                    java.lang.String codeType,
                    java.lang.String template,
                    int lineNumber)

Generates code for the template before execution

Specified by:

getCode in class AbstractVarModel

Parameters:

codeText - the actual code

codeType - the type of code

template - the template to create the code for

lineNumber - the line number of the statement

getPossibleErrors

public java.lang.String[] getPossibleErrors()

Returns the possible errors for this variable

Specified by:

getPossibleErrors in class AbstractVarModel

Returns:

the possible errors for this variable

explainProcess

public void explainProcess(RunEnv runEnv,
                           Behavior behavior,
                           java.lang.String statement,
                           int event,
                           int lineNumber)

Executes a statement and provides an explanation based on what type of statement was executed.

Specified by:

explainProcess in class AbstractVarModel

Parameters:

runEnv - The run time environment

behavior - The current behavior

statement - The statement to execute

event - The event of execution (ex. initialization, assignment, referencing,...)

lineNumber - The line number of the statement

explainObject

public void explainObject(StackModel stack,
                          HeapModel heap,
                          Behavior behavior,
                          java.lang.String statement,
                          int event,
                          int lineNumber,
                          boolean abbreviated)

To generate error messages for arrays after execution.

Specified by:

explainObject in class AbstractVarModel

Parameters:

stack - the runtime stack

heap - the runtime heap

behavior - the current behavior

statement - the statement

event - the execution event

lineNumber - the line number of the statement

abbreviated - switch for abreviated explanations

print

public void print()

Prints the value of the error variable

Specified by:

print in class AbstractVarModel

main

public static void main(java.lang.String[] args)

For Debugging

Parameters:

args - args