Packages

Definition Classes: root

Definition Classes: root

OPAL is a Scala-based framework for the static analysis, manipulation and creation of Java bytecode.

OPAL is a Scala-based framework for the static analysis, manipulation and creation of Java bytecode. OPAL is designed with performance, scalability and adaptability in mind.

Its main components are:

a library (Common) which provides generally useful data-structures and algorithms for static analyses.
a framework for implementing lattice based static analyses (Static Analysis Infrastructure)
a framework for parsing Java bytecode (Bytecode Infrastructure - org.opalj.bi) that can be used to create arbitrary representations.
a library to create a one-to-one in-memory representation of Java bytecode (Bytecode Disassembler - org.opalj.da).
a library to convert this representation to Java class files (Bytecode Creator - org.opalj.bc).
a library to create a representation of Java bytecode that facilitates writing simple static analyses (Bytecode Representation - org.opalj.br).
a library to create a stackless, three-address code representation of Java bytecode that facilitates writing complex static analyses (Three Address Code - org.opalj.tac).
a scalable, easily customizable framework for the abstract interpretation of Java bytecode (Abstract Interpretation Framework - org.opalj.ai).
a library to extract dependencies between code elements (Dependencies Extraction - org.opalj.de) and to facilitate checking architecture definitions (Architecture Validation - org.opalj.av).
a library for the lightweight manipulation and creation of Java bytecode (Bytecode Assembler - org.opalj.ba).
a library for parsing Android packages (APK - org.opalj.apk).
libraries for writing static analyses using the interprocedural finite distributive subset (IFDS - org.opalj.ifds) and interprocedural distributive environment (IDE - org.opal.ide) algorithms.

General Design Decisions

Thread Safety

Unless explicitly noted, OPAL is thread safe. I.e., the classes defined by OPAL can be considered to be thread safe unless otherwise stated. (For example, it is possible to read and process class files concurrently without explicit synchronization on the client side.)

No `null` Values

Unless explicitly noted, OPAL does not null values I.e., fields that are accessible will never contain null values and methods will never return null. If a method accepts null as a value for a parameter or returns a null value it is always explicitly documented. In general, the behavior of methods that are passed null values is undefined unless explicitly documented.

No Typecasts for Collections

For efficiency reasons, OPAL sometimes uses mutable data-structures internally. After construction time, these data-structures are generally represented using their generic interfaces (e.g., scala.collection.{Set,Map}). However, a downcast (e.g., to add/remove elements) is always forbidden as it would effectively prevent thread-safety.

Assertions

OPAL makes heavy use of Scala's Assertion Facility to facilitate writing correct code. Hence, for production builds (after thorough testing(!)) it is highly recommend to build OPAL again using -Xdisable-assertions.

Definition Classes: org

package tac

Common definitions related to the definition and processing of three address code.

Definition Classes: opalj

package cg

Definition Classes: tac

package common

Definition Classes: tac

package fpcf

Definition Classes: tac

EagerDetachedTACAIKey

InvokedynamicFunctionCall

InvokedynamicMethodCall

JSR

New

NonVirtualFunctionCall

NonVirtualFunctionCallStatement

Nop

PrimitiveTypecastExpr

Ret

StaticFunctionCallStatement

TAC

TACOptimizationResult

Var

VirtualFunctionCallStatement

VirtualMethodCall

org.opalj.tac

PDUWeb

Companion object PDUWeb

case class PDUWeb(defPCs: IntTrieSet, usePCs: IntTrieSet) extends Product with Serializable

Identifies a variable inside a given fixed method. A method's webs can be constructed through the maximal unions of all intersecting DU-UD-chains of the method.

defPCs: The def PCs of the variable that is identified through this web.
usePCs: The use PCs of the variable that is identified through this web.

Source: PDUWeb.scala

Linear Supertypes

Serializable, Product, Equals, AnyRef, Any

Ordering

Alphabetic
By Inheritance

Inherited

PDUWeb
Serializable
Product
Equals
AnyRef
Any

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Visibility

Public
Protected

Instance Constructors

new PDUWeb(defPCs: IntTrieSet, usePCs: IntTrieSet)
defPCs
The def PCs of the variable that is identified through this web.
usePCs
The use PCs of the variable that is identified through this web.

Value Members

final def !=(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def ##: Int
Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean
Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0
Definition Classes
Any
def clone(): AnyRef
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.CloneNotSupportedException]) @native() @IntrinsicCandidate()
def combine(other: PDUWeb): PDUWeb
val defPCs: IntTrieSet
final def eq(arg0: AnyRef): Boolean
Definition Classes
AnyRef
def equals(obj: Any): Boolean
Definition Classes
PDUWeb → Equals → AnyRef → Any
final def getClass(): Class[_ <: AnyRef]
Definition Classes
AnyRef → Any
Annotations
@native() @IntrinsicCandidate()
def hashCode(): Int
Definition Classes
PDUWeb → AnyRef → Any
def identifiesSameVarAs(other: PDUWeb): Boolean
final def isInstanceOf[T0]: Boolean
Definition Classes
Any
final def ne(arg0: AnyRef): Boolean
Definition Classes
AnyRef
final def notify(): Unit
Definition Classes
AnyRef
Annotations
@native() @IntrinsicCandidate()
final def notifyAll(): Unit
Definition Classes
AnyRef
Annotations
@native() @IntrinsicCandidate()
def productElementNames: Iterator[String]
Definition Classes
Product
final def synchronized[T0](arg0: => T0): T0
Definition Classes
AnyRef
val usePCs: IntTrieSet
final def wait(arg0: Long, arg1: Int): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(arg0: Long): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])
final def wait(): Unit
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.InterruptedException])

Deprecated Value Members

def finalize(): Unit
Attributes
protected[lang]
Definition Classes
AnyRef
Annotations
@throws(classOf[java.lang.Throwable]) @Deprecated @Deprecated
Deprecated

Packages

General Design Decisions

Thread Safety

No `null` Values

No Typecasts for Collections

Assertions

PDUWeb

Companion object PDUWeb

case class PDUWeb(defPCs: IntTrieSet, usePCs: IntTrieSet) extends Product with Serializable

Instance Constructors

Value Members

Deprecated Value Members

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped

Packages

General Design Decisions

Thread Safety

No null Values

No Typecasts for Collections

Assertions

PDUWeb

Companion object PDUWeb

case class PDUWeb(defPCs: IntTrieSet, usePCs: IntTrieSet) extends Product with Serializable

Instance Constructors

Value Members

Deprecated Value Members

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from AnyRef

Inherited from Any

Ungrouped

No `null` Values

PDUWeb