LineNumber (Serp 1.15.2 API)

java.lang.Object
- serp.bytecode.LineNumber

All Implemented Interfaces:

Comparable, BCEntity, InstructionPtr, VisitAcceptor
```
public class LineNumber
extends Object
implements Comparable, InstructionPtr, BCEntity, VisitAcceptor
```
A line number corresponds to a sequence of opcodes that map logically to a line of source code.

Author:

Abe White

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`acceptVisit(BCVisitor visit)` Accept a visit from a `BCVisitor`, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this one.
`int`	`compareTo(Object other)`
`ClassLoader`	`getClassLoader()` Return the class loader to use when loading related classes.
`Code`	`getCode()` Returns the Code block that owns the Instruction(s) this InstructionPtr points to.
`int`	`getLine()` Return source line number.
`ConstantPool`	`getPool()` Return the constant pool of the current class.
`Project`	`getProject()` Return the project of the current class.
`Instruction`	`getStart()` Return the instruction marking the beginning of this line.
`int`	`getStartPc()` Return the index into the code byte array at which this line starts.
`LineNumberTable`	`getTable()` Line numbers are stored in a `LineNumberTable`.
`boolean`	`isValid()` Return false if this entity has been removed from its parent; in this case the results of any operations on the entity are undefined.
`void`	`replaceTarget(Instruction oldTarget, Instruction newTarget)` Replace the given old, likely invalid, target with a new target.
`void`	`setLine(int lineNumber)` Set the source line number.
`void`	`setStart(Instruction instruction)` Set the `Instruction` marking the beginning this line.
`void`	`setStartPc(int startPc)` Set the index into the code byte array at which this line starts.
`void`	`updateTargets()` Use the byte indexes read from the class file to calculate and set references to the target instruction(s) for this ptr.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getTable
```
public LineNumberTable getTable()
```
    Line numbers are stored in a LineNumberTable.
  - getLine
```
public int getLine()
```
    Return source line number.
  - setLine
```
public void setLine(int lineNumber)
```
    Set the source line number.
  - getStart
```
public Instruction getStart()
```
    Return the instruction marking the beginning of this line.
  - getStartPc
```
public int getStartPc()
```
    Return the index into the code byte array at which this line starts.
  - setStartPc
```
public void setStartPc(int startPc)
```
    Set the index into the code byte array at which this line starts.
  - setStart
```
public void setStart(Instruction instruction)
```
    Set the Instruction marking the beginning this line. The instruction must already be a part of the method.
  - updateTargets
```
public void updateTargets()
```
    Description copied from interface: InstructionPtr
    
    Use the byte indexes read from the class file to calculate and set references to the target instruction(s) for this ptr. This method will be called after the byte code has been read in for the first time and before it is written after modification.
    
    Specified by:
    
    updateTargets in interface InstructionPtr
  - replaceTarget
```
public void replaceTarget(Instruction oldTarget,
                          Instruction newTarget)
```
    Description copied from interface: InstructionPtr
    
    Replace the given old, likely invalid, target with a new target. The new target Instruction is guaranteed to be in the same code block as this InstructionPtr.
    
    Specified by:
    
    replaceTarget in interface InstructionPtr
  - getProject
```
public Project getProject()
```
    Description copied from interface: BCEntity
    
    Return the project of the current class.
    
    Specified by:
    
    getProject in interface BCEntity
  - getPool
```
public ConstantPool getPool()
```
    Description copied from interface: BCEntity
    
    Return the constant pool of the current class.
    
    Specified by:
    
    getPool in interface BCEntity
  - getClassLoader
```
public ClassLoader getClassLoader()
```
    Description copied from interface: BCEntity
    
    Return the class loader to use when loading related classes.
    
    Specified by:
    
    getClassLoader in interface BCEntity
  - isValid
```
public boolean isValid()
```
    Description copied from interface: BCEntity
    
    Return false if this entity has been removed from its parent; in this case the results of any operations on the entity are undefined.
    
    Specified by:
    
    isValid in interface BCEntity
  - acceptVisit
```
public void acceptVisit(BCVisitor visit)
```
    Description copied from interface: VisitAcceptor
    
    Accept a visit from a BCVisitor, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this one.
    
    Specified by:
    
    acceptVisit in interface VisitAcceptor
  - compareTo
```
public int compareTo(Object other)
```
    Specified by:
    
    compareTo in interface Comparable
  - getCode
```
public Code getCode()
```
    Description copied from interface: InstructionPtr
    
    Returns the Code block that owns the Instruction(s) this InstructionPtr points to.
    
    Specified by:
    
    getCode in interface InstructionPtr

Class LineNumber

Method Summary

Methods inherited from class java.lang.Object

Method Detail

getTable

getLine

setLine

getStart

getStartPc

setStartPc

setStart

updateTargets

replaceTarget

getProject

getPool

getClassLoader

isValid

acceptVisit

compareTo

getCode