ppt4j.feature.bytecode.BytecodeExtractor Class Reference

Inheritance diagram for ppt4j.feature.bytecode.BytecodeExtractor:

Public Member Functions
	BytecodeExtractor ( @NonNull InputStream inputStream) throws IOException
	BytecodeExtractor (@NonNull String classFile) throws IOException
	BytecodeExtractor (@NonNull ClassReader classReader)
void	parse ()
void	putInnerClass (@NonNull BytecodeExtractor ex)
BytecodeExtractor	getInnerClass (@NonNull String className)
Features.SourceType	getSourceType ()
void	print ()
Public Member Functions inherited from ppt4j.feature.Extractor
default void	print (int line)
Map< Integer, Features >	getFeaturesMap ()
String	getClassName ()

Static Public Member Functions
static BytecodeExtractor	nil ()

Constructor & Destructor Documentation

BytecodeExtractor() [1/3]

ppt4j.feature.bytecode.BytecodeExtractor.BytecodeExtractor

(

@NonNull InputStream

inputStream

)

throws IOException

BytecodeExtractor() [2/3]

ppt4j.feature.bytecode.BytecodeExtractor.BytecodeExtractor

(

@NonNull String

classFile

)

throws IOException

BytecodeExtractor() [3/3]

ppt4j.feature.bytecode.BytecodeExtractor.BytecodeExtractor

(

@NonNull ClassReader

classReader

)

Member Function Documentation

getInnerClass()

BytecodeExtractor ppt4j.feature.bytecode.BytecodeExtractor.getInnerClass

(

@NonNull String

className

)

Retrieves the BytecodeExtractor for the specified inner class by its class name.

Parameters

className

the name of the inner class to retrieve

Returns

the BytecodeExtractor for the specified inner class, or null if not found

getSourceType()

Features.SourceType ppt4j.feature.bytecode.BytecodeExtractor.getSourceType

(

)

This method returns the source type of the features, which is determined to be bytecode.

Returns

The source type of the features, which is bytecode.

Implements ppt4j.feature.Extractor.

nil()

static BytecodeExtractor ppt4j.feature.bytecode.BytecodeExtractor.nil ( )

static

This method creates and returns a new instance of BytecodeExtractor object with default values.

Returns

a new instance of BytecodeExtractor object

parse()

void ppt4j.feature.bytecode.BytecodeExtractor.parse

(

)

Parses the methods of the class by analyzing their bytecode instructions. Skips native or abstract methods, methods without line number info, and <clinit> methods. Performs ArgTypeAnalysis, LoopAnalysis, and clustering of instructions for each method. Generates features for each instruction and removes RETURN instructions if present in <clinit> method. Sets isParsed flag to true after parsing is complete.

Implements ppt4j.feature.Extractor.

print()

void ppt4j.feature.bytecode.BytecodeExtractor.print

(

)

Prints the features map and recursively prints the inner classes of the extractor. If the root is null, it prints "nil extractor".

Implements ppt4j.feature.Extractor.

putInnerClass()

void ppt4j.feature.bytecode.BytecodeExtractor.putInnerClass

(

@NonNull BytecodeExtractor

ex

)

This method takes a BytecodeExtractor object, parses it, and then stores it in a map called innerClasses with the class name as the key.

Parameters

ex	the BytecodeExtractor object to be stored in the innerClasses map

---

The documentation for this class was generated from the following file:

• framework/src/main/java/ppt4j/feature/bytecode/BytecodeExtractor.java