com.agentfactory.common.parser
Class SemanticError

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          com.agentfactory.common.parser.SemanticError

All Implemented Interfaces:

java.io.Serializable

public class SemanticError
extends java.lang.Exception

This exception is thrown whenever one of the visitors detects a semantic error in the source code of the program. Semantic errors are errors that arise within syntactically correct code (e.g. a repeated activity identifier). It is designed to generate an error message that complies with the Java error reporting format. Current errors consist of:

• a general error message
• contextual information about the cause of the error message
• a token close to the error.

TODO (Rem Collier): Really the token is now only used to retrieve the line number on which the syntax error occurred. A possible change to this class is to store only the line number, and not the full token.

See Also:

Serialized Form

Constructor Summary

SemanticError(java.lang.String error, java.lang.String cause, Token token)
Creates a new Syntax Error.

Method Summary

java.lang.String

getMessage() Accessor that returns the message in java error format.

Methods inherited from class java.lang.Throwable

fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SemanticError

public SemanticError(java.lang.String error,
                     java.lang.String cause,
                     Token token)

Creates a new Syntax Error.

Parameters:

error - the general class of error

cause - some context that provides information about the actual cause of the error

token - a token close to the error that can be used to report the location of the error.

Method Detail

getMessage

public java.lang.String getMessage()

Accessor that returns the message in java error format.

Overrides:

getMessage in class java.lang.Throwable

Returns:

the syntax error message