org.fusesource.hawtbuf.proto.compiler.parser

Class ParseException

java.lang.Object

java.lang.Throwable

java.lang.Exception

org.fusesource.hawtbuf.proto.compiler.parser.ParseException

All Implemented Interfaces:

java.io.Serializable

public class ParseException
extends java.lang.Exception

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 and Description
Token	currentToken This is the last token that has been consumed successfully.
protected static java.lang.String	EOL The end of line string for this machine.
int[][]	expectedTokenSequences Each entry in this array is an array of integers.
private static long	serialVersionUID The version identifier for this Serializable class.
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 and Description
ParseException() The following constructors are for use by you for whatever purpose you can think of.
ParseException(java.lang.String message) Constructor with message.
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 and Description
(package private) static 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.
private static java.lang.String	initialise(Token currentToken, int[][] expectedTokenSequences, java.lang.String[] tokenImage) It uses "currentToken" and "expectedTokenSequences" to generate a parse error message and returns it.

Methods inherited from class java.lang.Throwable

addSuppressed, fillInStackTrace, getCause, getLocalizedMessage, getMessage, 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 Detail

serialVersionUID

private static final long serialVersionUID

The version identifier for this Serializable class. Increment only if the serialized form of the class changes.

See Also:

Constant Field Values

EOL

protected static java.lang.String EOL

The end of line string for this machine.

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.

Constructor Detail

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.

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)

Constructor with message.

Method Detail

initialise

private static java.lang.String initialise(Token currentToken,
                                           int[][] expectedTokenSequences,
                                           java.lang.String[] tokenImage)

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) the correct error message gets displayed.

add_escapes

static 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.