Package com.strobel.decompiler

Class LineNumberFormatter

java.lang.Object

com.strobel.decompiler.LineNumberFormatter

public class LineNumberFormatter
extends java.lang.Object

A LineNumberFormatter is used to rewrite an existing .java file, introducing line number information. It can handle either, or both, of the following jobs:

• Introduce line numbers as leading comments.
• Stretch the file so that the line number comments match the physical lines.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	LineNumberFormatter.LineNumberOption

Field Summary

Fields

Modifier and Type	Field	Description
private java.io.File	_file
private java.util.EnumSet<LineNumberFormatter.LineNumberOption>	_options
private java.util.List<LineNumberPosition>	_positions

Constructor Summary

Constructors

Constructor	Description
LineNumberFormatter(java.io.File file, java.util.List<LineNumberPosition> lineNumberPositions, java.util.EnumSet<LineNumberFormatter.LineNumberOption> options)	Constructs an instance.

Method Summary

Modifier and Type	Method	Description
private java.util.List<java.lang.String>	breakLines(java.util.List<LineNumberPosition> o_LineBrokenPositions)	Processes _file, breaking apart any lines on which multiple line-number markers appear in different columns.
private void	emitFormatted(java.util.List<java.lang.String> brokenLines, java.util.List<LineNumberPosition> lineBrokenPositions)
void	reformatFile()	Rewrites the file passed to 'this' constructor so that the actual line numbers match the recipe passed to 'this' constructor.

Methods inherited from class java.lang.Object

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

Field Detail

_positions

private final java.util.List<LineNumberPosition> _positions

_file

private final java.io.File _file

_options

private final java.util.EnumSet<LineNumberFormatter.LineNumberOption> _options

Constructor Detail

LineNumberFormatter

public LineNumberFormatter(java.io.File file,
                           java.util.List<LineNumberPosition> lineNumberPositions,
                           java.util.EnumSet<LineNumberFormatter.LineNumberOption> options)

Constructs an instance.

Parameters:

file - the file whose line numbers should be fixed

lineNumberPositions - a recipe for how to fix the line numbers in 'file'.

options - controls how 'this' represents line numbers in the resulting file

Method Detail

reformatFile

public void reformatFile()
                  throws java.io.IOException

Rewrites the file passed to 'this' constructor so that the actual line numbers match the recipe passed to 'this' constructor.

Throws:

java.io.IOException

breakLines

private java.util.List<java.lang.String> breakLines(java.util.List<LineNumberPosition> o_LineBrokenPositions)
                                             throws java.io.IOException

Processes _file, breaking apart any lines on which multiple line-number markers appear in different columns.

Returns:

the list of broken lines

Throws:

java.io.IOException

emitFormatted

private void emitFormatted(java.util.List<java.lang.String> brokenLines,
                           java.util.List<LineNumberPosition> lineBrokenPositions)
                    throws java.io.IOException

Throws:

java.io.IOException