Packages

  • package root
    Definition Classes
    root
  • package org
    Definition Classes
    root
  • package opalj

    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) that can be used to create arbitrary representations.
    • a library to create a one-to-one in-memory representation of Java bytecode (Bytecode Disassembler).
    • a library to create a representation of Java bytecode that facilitates writing simple static analyses (Bytecode Representation - org.opalj.br).
    • 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 and to facilitate checking architecture definitions.
    • a library for the lightweight manipulation and creation of Java bytecode (Bytecode Assembler).

    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 br

    In this representation of Java bytecode references to a Java class file's constant pool and to attributes are replaced by direct references to the corresponding constant pool entries.

    In this representation of Java bytecode references to a Java class file's constant pool and to attributes are replaced by direct references to the corresponding constant pool entries. This facilitates developing analyses and fosters comprehension.

    Based on the fact that indirect references to constant pool entries are resolved and replaced by direct references this representation is called the resolved representation.

    This representation of Java bytecode is considered as OPAL's standard representation for writing Scala based analyses. This representation is engineered such that it facilitates writing analyses that use pattern matching.

    Definition Classes
    opalj
  • package fpcf
    Definition Classes
    br
  • package properties
    Definition Classes
    fpcf
  • package immutability
    Definition Classes
    properties
  • Assignable
  • ClassImmutability
  • ClassImmutabilityPropertyMetaInformation
  • DependentlyImmutableClass
  • DependentlyImmutableField
  • DependentlyImmutableType
  • EffectivelyNonAssignable
  • FieldAssignability
  • FieldAssignabilityPropertyMetaInformation
  • FieldImmutability
  • FieldImmutabilityPropertyMetaInformation
  • LazilyInitialized
  • MutableClass
  • MutableField
  • MutableType
  • NonAssignable
  • NonAssignableField
  • NonTransitivelyImmutableClass
  • NonTransitivelyImmutableField
  • NonTransitivelyImmutableType
  • TransitivelyImmutableClass
  • TransitivelyImmutableField
  • TransitivelyImmutableType
  • TypeImmutability
  • TypeImmutabilityPropertyMetaInformation
  • UnsafelyLazilyInitialized
o

org.opalj.br.fpcf.properties.immutability

TransitivelyImmutableClass

case object TransitivelyImmutableClass extends ClassImmutability with Product with Serializable

Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. TransitivelyImmutableClass
  2. Serializable
  3. Product
  4. Equals
  5. ClassImmutability
  6. ClassImmutabilityPropertyMetaInformation
  7. OrderedProperty
  8. Property
  9. PropertyMetaInformation
  10. PropertyKind
  11. AnyRef
  12. Any
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Visibility
  1. Public
  2. Protected

Value Members

  1. final def asOrderedProperty: OrderedProperty

    Returns this if this property inherits from OrderedProperty.

    Returns this if this property inherits from OrderedProperty.

    Used, e.g., by the framework to support debugging analyses.

    Definition Classes
    Property
  2. def bottomness: Int

    Returns a value between zero and 9 which describes how close the value is to its absolute bottom.

    Returns a value between zero and 9 which describes how close the value is to its absolute bottom. Zero means the value is very close to the bottom and 9 means the value is far away from the bottom.

    The default value is "5".

    Definition Classes
    OrderedProperty
  3. def checkIsEqualOrBetterThan(e: Entity, other: Self): Unit

    Tests if this property is equal or better than the given one (better means that the value is above the given value in the underlying lattice.)

    Tests if this property is equal or better than the given one (better means that the value is above the given value in the underlying lattice.)

    Definition Classes
    TransitivelyImmutableClass → OrderedProperty
  4. def correspondingTypeImmutability: TypeImmutability
    Definition Classes
    TransitivelyImmutableClass → ClassImmutability
  5. final def id: Int

    The id uniquely identifies this property's category.

    The id uniquely identifies this property's category. All property objects of the same kind have to use the same id which is guaranteed since they share the same PropertyKey

    Definition Classes
    PropertyMetaInformation → PropertyKind
  6. def isDependentlyImmutable: Boolean
    Definition Classes
    ClassImmutability
  7. final def isOrderedProperty: Boolean

    Returns true if this property inherits from OrderedProperty.

    Returns true if this property inherits from OrderedProperty.

    Definition Classes
    Property
  8. final def key: PropertyKey[ClassImmutability]

    The key uniquely identifies this property's category.

    The key uniquely identifies this property's category. All property objects of the same kind have to use the same key.

    In general each Property kind is expected to have a companion object that stores the unique PropertyKey.

    Definition Classes
    ClassImmutability → PropertyMetaInformation
  9. def meet(that: ClassImmutability): ClassImmutability
  10. def productElementName(n: Int): String
    Definition Classes
    Product
  11. def productElementNames: Iterator[String]
    Definition Classes
    Product