org.htmlunit.corejs.javascript.ast

Class ErrorCollector

java.lang.Object

org.htmlunit.corejs.javascript.ast.ErrorCollector

All Implemented Interfaces:

IdeErrorReporter, ErrorReporter

public class ErrorCollector
extends Object
implements IdeErrorReporter

An error reporter that gathers the errors and warnings for later display. This a useful ErrorReporter when the CompilerEnvirons is set to ide-mode (for IDEs).

Author:

Steve Yegge

Constructor Summary

Constructors

Constructor and Description
ErrorCollector()

Method Summary

Modifier and Type	Method and Description
void	error(String message, String sourceName, int fileOffset, int length) Report an error.
void	error(String message, String sourceName, int line, String lineSource, int lineOffset) This is not called during AST generation.
List<ParseProblem>	getErrors() Returns the list of errors and warnings produced during parsing.
EvaluatorException	runtimeError(String message, String sourceName, int line, String lineSource, int lineOffset) Creates an EvaluatorException that may be thrown.
String	toString()
void	warning(String message, String sourceName, int offset, int length) Report a warning.
void	warning(String message, String sourceName, int line, String lineSource, int lineOffset) This is not called during AST generation.

Methods inherited from class java.lang.Object

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

Constructor Detail

ErrorCollector

public ErrorCollector()

Method Detail

warning

public void warning(String message,
                    String sourceName,
                    int line,
                    String lineSource,
                    int lineOffset)

This is not called during AST generation. warning(String,String,int,int) is used instead.

Specified by:

warning in interface ErrorReporter

Parameters:

message - a String describing the warning

sourceName - a String describing the JavaScript source where the warning occured; typically a filename or URL

line - the line number associated with the warning

lineSource - the text of the line (may be null)

lineOffset - the offset into lineSource where problem was detected

Throws:

UnsupportedOperationException

warning

public void warning(String message,
                    String sourceName,
                    int offset,
                    int length)

Report a warning.

The implementing class may choose to ignore the warning if it desires.

Specified by:

warning in interface IdeErrorReporter

Parameters:

message - a String describing the warning

sourceName - a String describing the JavaScript source where the warning occured; typically a filename or URL

offset - the warning's 0-indexed char position in the input stream

length - the length of the region contributing to the warning

error

public void error(String message,
                  String sourceName,
                  int line,
                  String lineSource,
                  int lineOffset)

This is not called during AST generation. warning(String,String,int,int) is used instead.

Specified by:

error in interface ErrorReporter

Parameters:

message - a String describing the error

sourceName - a String describing the JavaScript source where the error occured; typically a filename or URL

line - the line number associated with the error

lineSource - the text of the line (may be null)

lineOffset - the offset into lineSource where problem was detected

Throws:

UnsupportedOperationException

error

public void error(String message,
                  String sourceName,
                  int fileOffset,
                  int length)

Report an error.

The implementing class is free to throw an exception if it desires.

If execution has not yet begun, the JavaScript engine is free to find additional errors rather than terminating the translation. It will not execute a script that had errors, however.

Specified by:

error in interface IdeErrorReporter

Parameters:

message - a String describing the error

sourceName - a String describing the JavaScript source where the error occured; typically a filename or URL

fileOffset - 0-indexed char position of the error in the input stream

length - the length of the region contributing to the error

runtimeError

public EvaluatorException runtimeError(String message,
                                       String sourceName,
                                       int line,
                                       String lineSource,
                                       int lineOffset)

Creates an EvaluatorException that may be thrown.

runtimeErrors, unlike errors, will always terminate the current script.

Specified by:

runtimeError in interface ErrorReporter

Parameters:

message - a String describing the error

sourceName - a String describing the JavaScript source where the error occured; typically a filename or URL

line - the line number associated with the error

lineSource - the text of the line (may be null)

lineOffset - the offset into lineSource where problem was detected

Returns:

an EvaluatorException that will be thrown.

getErrors

public List<ParseProblem> getErrors()

Returns the list of errors and warnings produced during parsing.

toString

public String toString()

Overrides:

toString in class Object