jasm.attributes

Class LineNumberTable

java.lang.Object

jasm.attributes.LineNumberTable

All Implemented Interfaces:

Code.BytecodeMapAttribute, BytecodeAttribute

public class LineNumberTable
extends Object
implements Code.BytecodeMapAttribute

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	LineNumberTable.Entry

Nested classes/interfaces inherited from interface jasm.lang.BytecodeAttribute

BytecodeAttribute.Fn, BytecodeAttribute.Reader, BytecodeAttribute.Unknown

Constructor Summary

Constructors

Constructor and Description
LineNumberTable(Collection<LineNumberTable.Entry> entries)

Method Summary

Modifier and Type	Method and Description
void	addPoolItems(Set<Constant.Info> constantPool) When this method is called, the attribute must add all items that it needs to the constant pool.
void	apply(List<Code.Rewrite> rewrites) This method accepts a list of rewrites which should be applied.
List<LineNumberTable.Entry>	entries()
String	name()
void	print(PrintWriter output, Map<Constant.Info,Integer> constantPool) This method is used to print the contents of the attribute in human-readable form, similar to that produced by "javap".
void	write(BinaryOutputStream writer, Map<Constant.Info,Integer> constantPool) This method requires the attribute to write itself to the binary stream.
void	write(int[] bytecodeOffsets, BinaryOutputStream writer, Map<Constant.Info,Integer> constantPool) This method requires the attribute to write itself to the binary stream.

Methods inherited from class java.lang.Object

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

Constructor Detail

LineNumberTable

public LineNumberTable(Collection<LineNumberTable.Entry> entries)

Method Detail

apply

public void apply(List<Code.Rewrite> rewrites)

Description copied from interface: Code.BytecodeMapAttribute

This method accepts a list of rewrites which should be applied. For efficiency reasons, several constraints are made on the list:

1. The rewrites are ordered by their start location, such that the first rewrite has the lowest start location
2. The rewrites don't overlap. That is, we assume only one rewrite can be applied to any given region of bytecodes.

If the complete set of rewrites cannot be constructed according to these constraints, then it needs to be split up into several calls to this method.

Specified by:

apply in interface Code.BytecodeMapAttribute

entries

public List<LineNumberTable.Entry> entries()

name

public String name()

Specified by:

name in interface BytecodeAttribute

write

public void write(BinaryOutputStream writer,
                  Map<Constant.Info,Integer> constantPool)
           throws IOException

Description copied from interface: BytecodeAttribute

This method requires the attribute to write itself to the binary stream.

Specified by:

write in interface BytecodeAttribute

Parameters:

writer - Outputstream to which the attribute should be written.

constantPool - Map of CONSTANT_info items to their index in the constant pool.

Throws:

IOException

write

public void write(int[] bytecodeOffsets,
                  BinaryOutputStream writer,
                  Map<Constant.Info,Integer> constantPool)
           throws IOException

Description copied from interface: Code.BytecodeMapAttribute

This method requires the attribute to write itself to the binary stream.

Specified by:

write in interface Code.BytecodeMapAttribute

Parameters:

bytecodeOffsets - --- maps each bytecode index to its actual offset in the code block.

writer - --- stream to write attribute to

constantPool - --- map of constant pool items to their actual pool index

Throws:

IOException

addPoolItems

public void addPoolItems(Set<Constant.Info> constantPool)

Description copied from interface: BytecodeAttribute

When this method is called, the attribute must add all items that it needs to the constant pool.

Specified by:

addPoolItems in interface BytecodeAttribute

print

public void print(PrintWriter output,
                  Map<Constant.Info,Integer> constantPool)
           throws IOException

Description copied from interface: BytecodeAttribute

This method is used to print the contents of the attribute in human-readable form, similar to that produced by "javap".

Specified by:

print in interface BytecodeAttribute

Parameters:

output - Output writer to which the attribute is printed.

constantPool - Map of CONSTANT_info items to their index in the constant pool.

Throws:

IOException