avrora.syntax
Class AbstractParseException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          java.lang.RuntimeException
              avrora.syntax.AbstractParseException

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ParseException, ParseException, ParseException

public class AbstractParseException

extends java.lang.RuntimeException

The AbstractParseException represents a parse exception that was thrown by one of the parsers generated by JavaCC. It is the supertype of all generated ParseException classes so that they can be unified here.

See Also:

Serialized Form

Field Summary

AbstractToken	currentToken This is the last token that has been consumed successfully.
protected java.lang.String	eol The end of line string for this machine.
int[][]	expectedTokenSequences Each entry in this array is an array of integers.
ProgramPoint	programPoint
protected boolean	specialConstructor This variable determines which constructor was used to create this object and thereby affects the semantics of the "getMessage" method (see below).
java.lang.String[]	tokenImage This is a reference to the "tokenImage" array of the generated parser within which the parse error occurred.

Constructor Summary

AbstractParseException()
The following constructors are for use by you for whatever purpose you can think of.

AbstractParseException(AbstractToken currentTokenVal, int[][] expectedTokenSequencesVal, java.lang.String[] tokenImageVal)
This constructor is used by the method "generateParseException" in the generated parser.

AbstractParseException(java.lang.String message)

Method Summary

protected java.lang.String

add_escapes(java.lang.String str) Used to convert raw characters to their escaped version when these raw version cannot be used as part of an ASCII string literal.

Methods inherited from class java.lang.Throwable

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

Methods inherited from class java.lang.Object

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

Field Detail

specialConstructor

protected boolean specialConstructor

This variable determines which constructor was used to create this object and thereby affects the semantics of the "getMessage" method (see below).

currentToken

public AbstractToken currentToken

This is the last token that has been consumed successfully. If this object has been created due to a parse error, the token followng this token will (therefore) be the first error token.

expectedTokenSequences

public int[][] expectedTokenSequences

Each entry in this array is an array of integers. Each array of integers represents a sequence of tokens (by their ordinal values) that is expected at this point of the parse.

tokenImage

public java.lang.String[] tokenImage

This is a reference to the "tokenImage" array of the generated parser within which the parse error occurred. This array is defined in the generated ...Constants interface.

eol

protected java.lang.String eol

The end of line string for this machine.

programPoint

public ProgramPoint programPoint

Constructor Detail

AbstractParseException

public AbstractParseException(AbstractToken currentTokenVal,
                              int[][] expectedTokenSequencesVal,
                              java.lang.String[] tokenImageVal)

This constructor is used by the method "generateParseException" in the generated parser. Calling this constructor generates a new object of this type with the fields "currentToken", "expectedTokenSequences", and "tokenImage" set. The boolean flag "specialConstructor" is also set to true to indicate that this constructor was used to create this object. This constructor calls its super class with the empty string to force the "toString" method of parent class "Throwable" to print the error message in the form: ParseException:

AbstractParseException

public AbstractParseException()

The following constructors are for use by you for whatever purpose you can think of. Constructing the exception in this manner makes the exception behave in the normal way - i.e., as documented in the class "Throwable". The fields "errorToken", "expectedTokenSequences", and "tokenImage" do not contain relevant information. The JavaCC generated code does not use these constructors.

AbstractParseException

public AbstractParseException(java.lang.String message)

Method Detail

add_escapes

protected java.lang.String add_escapes(java.lang.String str)

Used to convert raw characters to their escaped version when these raw version cannot be used as part of an ASCII string literal.