org.jruby.lexer.yacc
Class SimpleSourcePosition

java.lang.Object
  org.jruby.lexer.yacc.SimpleSourcePosition

All Implemented Interfaces:

ISourcePosition

public class SimpleSourcePosition
extends java.lang.Object
implements ISourcePosition

Constructor Summary

SimpleSourcePosition(java.lang.String filename, int line)

Method Summary

void	adjustStartOffset(int relativeValue) Modify startOffset by a relativeValue.
int	getEndLine() Which is the last(end) line that this source position occurs on (zero-based)
int	getEndOffset() Get offset (relative to beginning of source file) immediately after the last character represented by this source position
java.lang.String	getFile() Which file does this source position live in?
int	getStartLine() Which is the first(start) line that this source position occurs on (zero-based)
int	getStartOffset() Get offset (relative to beginning of source file) immediately before first character represented by this source position.
ISourcePosition	union(ISourcePosition other) Calculates the logical union of the two positions and creates a new resulting position

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleSourcePosition

public SimpleSourcePosition(java.lang.String filename,
                            int line)

Method Detail

adjustStartOffset

public void adjustStartOffset(int relativeValue)

Description copied from interface: ISourcePosition

Modify startOffset by a relativeValue. At times our grammar and lexer do not give us the exact positions we need so we need to manually tweak position. The bummer of this is this requires ISourcePosition implementations are mutable.

Specified by:

adjustStartOffset in interface ISourcePosition

Parameters:

relativeValue - to nudge startOffset up or down

getEndLine

public int getEndLine()

Description copied from interface: ISourcePosition

Which is the last(end) line that this source position occurs on (zero-based)

Specified by:

getEndLine in interface ISourcePosition

Returns:

the line

getEndOffset

public int getEndOffset()

Description copied from interface: ISourcePosition

Get offset (relative to beginning of source file) immediately after the last character represented by this source position

Specified by:

getEndOffset in interface ISourcePosition

Returns:

the offset

getFile

public java.lang.String getFile()

Description copied from interface: ISourcePosition

Which file does this source position live in?

Specified by:

getFile in interface ISourcePosition

Returns:

name of the source file.

getStartLine

public int getStartLine()

Description copied from interface: ISourcePosition

Which is the first(start) line that this source position occurs on (zero-based)

Specified by:

getStartLine in interface ISourcePosition

Returns:

getStartOffset

public int getStartOffset()

Description copied from interface: ISourcePosition

Get offset (relative to beginning of source file) immediately before first character represented by this source position.

Specified by:

getStartOffset in interface ISourcePosition

Returns:

the offset

union

public ISourcePosition union(ISourcePosition other)

Description copied from interface: ISourcePosition

Calculates the logical union of the two positions and creates a new resulting position

Specified by:

union in interface ISourcePosition

Parameters:

other - to be unioned against this position

Returns:

a new position