StructuredLineNumberInfo (ProGuardCORE)

java.lang.Object
- proguard.classfile.attribute.LineNumberInfo
- - proguard.classfile.attribute.StructuredLineNumberInfo

```
public class StructuredLineNumberInfo
extends LineNumberInfo
```
Line number info with extra information for lines that came from a different source than the current method (e.g. inlined from a different method). Tracking this information is necessary for printing a correct mapping file.
The structured line number info contains:
- Source string indicating the originating class/method of the line.
- Optional start/end line number indicating the original line numbers for a block of inlined instructions.
- A list of origins, indicating the transformations these lines underwent, e.g. multiple levels of inlining
- A block ID, that identifies a group of lines that belongs to a singular block.
Since these transformations operate on blocks of lines, and the mapping file identifies blocks rather than singular lines, StructuredLineNumberInfo objects are generated through a StructuredLineNumberInfo.Block object, which is a factory object that generates StructuredLineNumberInfos with consistent block IDs.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`StructuredLineNumberInfo.Block`	Factory for `StructuredLineNumberInfo` objects.
`static interface`	`StructuredLineNumberInfo.Origin`
`static class`	`StructuredLineNumberInfo.SimpleOrigin`

Field Summary
- Fields inherited from class proguard.classfile.attribute.LineNumberInfo
  u2lineNumber, u2startPC

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`StructuredLineNumberInfo.Block`	`getBlock(StructuredLineNumberInfo.Origin... addedOrigins)`
`int`	`getBlockId()`	Get the block ID which identifies related line numbers which form a single block in the mapping file.
`java.util.List<StructuredLineNumberInfo.Origin>`	`getOrigin()`	Get a chronological list of manipulations that this line went through.
`java.lang.String`	`getSource()`	Returns a description of the source of the line, if known, or null otherwise.
`int`	`getSourceLineEnd()`
`int`	`getSourceLineStart()`
`java.lang.String`	`getSourceMethod()`

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

- Method Detail
  - getSourceMethod
```
public java.lang.String getSourceMethod()
```
  - getSourceLineStart
```
public int getSourceLineStart()
```
  - getSourceLineEnd
```
public int getSourceLineEnd()
```
  - getBlockId
```
public int getBlockId()
```
    Get the block ID which identifies related line numbers which form a single block in the mapping file.
  - getOrigin
```
public java.util.List<StructuredLineNumberInfo.Origin> getOrigin()
```
    Get a chronological list of manipulations that this line went through. True origin is the first element, followed by any subsequent manipulations (e.g. multiple levels of inlining, copying, etc.).
  - getSource
```
public java.lang.String getSource()
```
    Description copied from class: LineNumberInfo
    
    Returns a description of the source of the line, if known, or null otherwise. Standard line number entries don't contain information about their source; it is assumed to be the same source file.
    
    Overrides:
    
    getSource in class LineNumberInfo
  - getBlock
```
public StructuredLineNumberInfo.Block getBlock(StructuredLineNumberInfo.Origin... addedOrigins)
```