Package jaxx.compiler.java.parser

Class ParseException

java.lang.Object
java.lang.Throwable
java.lang.Exception
java.lang.RuntimeException
jaxx.compiler.CompilerException
jaxx.compiler.java.parser.ParseException
All Implemented Interfaces:
java.io.Serializable
Direct Known Subclasses:
ParseException
public class ParseException
extends CompilerException
This exception is thrown when parse errors are encountered. You can explicitly create objects of this exception type by calling the method generateParseException in the generated parser. You can modify this class to customize your error reporting mechanisms so long as you retain the public fields.
See Also:
Serialized Form

  • Field Summary

    Fields
    Modifier and Type Field Description
    Token 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.
    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

    Constructors
    Constructor Description
    ParseException()
    The following constructors are for use by you for whatever purpose you can think of.
    ParseException​(java.lang.String message)  
    ParseException​(java.lang.String message, int line, int column)  
    ParseException​(Token currentTokenVal, int[][] expectedTokenSequencesVal, java.lang.String[] tokenImageVal)
    This constructor is used by the method "generateParseException" in the generated parser.

  • Method Summary

    Modifier and Type Method Description
    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.
    int getColumn()  
    int getLine()  
    java.lang.String getMessage()
    This method has the standard behavior when this object has been created using the standard constructors.

    Methods inherited from class java.lang.Throwable

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

    Methods inherited from class java.lang.Object

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

  • Field Details

    • 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 Token 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.

  • Constructor Details

    • ParseException

      public ParseException​(Token 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: <result of getMessage>
      Parameters:
      currentTokenVal - ?
      expectedTokenSequencesVal - ?
      tokenImageVal - ?

    • ParseException

      public ParseException()
      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.

    • ParseException

      public ParseException​(java.lang.String message)

    • ParseException

      public ParseException​(java.lang.String message, int line, int column)

  • Method Details

    • getMessage

      public java.lang.String getMessage()
      This method has the standard behavior when this object has been created using the standard constructors. Otherwise, it uses "currentToken" and "expectedTokenSequences" to generate a parse error message and returns it. If this object has been created due to a parse error, and you do not catch it (it gets thrown from the parser), then this method is called during the printing of the final stack trace, and hence the correct error message gets displayed.
      Overrides:
      getMessage in class java.lang.Throwable

    • getLine

      public int getLine()

    • getColumn

      public int getColumn()

    • 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.
      Parameters:
      str - text to treate
      Returns:
      the escaped version of text