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 graphs

    This package defines graph algorithms as well as factory methods to describe and compute graphs and trees.

    This package defines graph algorithms as well as factory methods to describe and compute graphs and trees.

    This package supports the following types of graphs:

    1. graphs based on explicitly connected nodes (org.opalj.graphs.Node),
    2. graphs where the relationship between the nodes are encoded externally (org.opalj.graphs.Graph).
    Definition Classes
    opalj
  • AbstractDominatorTree
  • AbstractGraph
  • ControlDependencies
  • DefaultMutableMode
  • DefaultMutableNode
  • DominanceFrontiers
  • DominatorTree
  • Graph
  • MutableNode
  • MutableNodeLike
  • Node
  • PostDominatorTree
  • UnidirectionalGraph
  • VirtualUnidirectionalGraph
t

org.opalj.graphs

AbstractGraph

trait AbstractGraph[N] extends (N) => IterableOnce[N]

Represents a(n im)mutable (multi-)graph with (un)ordered edges.

Source
AbstractGraph.scala
Linear Supertypes
(N) => IterableOnce[N], AnyRef, Any
Known Subclasses
Graph, UnidirectionalGraph, VirtualUnidirectionalGraph
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. AbstractGraph
  2. Function1
  3. AnyRef
  4. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Abstract Value Members

  1. abstract def apply(s: N): IterableOnce[N]

    Returns a given node's successor nodes.

    Returns a given node's successor nodes.

    Definition Classes
    AbstractGraph → Function1
  2. abstract def vertices: IterableOnce[N]

Concrete Value Members

  1. def andThen[A](g: (IterableOnce[N]) => A): (N) => A
    Definition Classes
    Function1
    Annotations
    @unspecialized()
  2. def compose[A](g: (A) => N): (A) => IterableOnce[N]
    Definition Classes
    Function1
    Annotations
    @unspecialized()
  3. def nonEmpty: Boolean
  4. def rootNodes(ignoreSelfRecursiveDependencies: Boolean = true): Set[N]

    Returns the set of nodes with no incoming dependencies; self-dependencies are optionally ignored.

    Returns the set of nodes with no incoming dependencies; self-dependencies are optionally ignored.

    ignoreSelfRecursiveDependencies

    If true self-dependencies are ignored. This means that nodes that have a self dependency are considered as being root nodes if they have no further incoming dependencies.

    returns

    The set of root nodes which can be freely mutated.

    Example:

    1. scala> val g = org.opalj.graphs.Graph.empty[AnyRef] +=
         ("a" -> "b") += ("b" -> "c") += ("b" -> "d") +=
         ("a" -> "e") += ("f" -> "e") += ("y" -> "y") +=
         ("a" -> "f")
g: org.opalj.graphs.Graph[AnyRef] =
Graph{
d => {}
c => {}
a => {f,e,b}
b => {d,c}
e => {}
y => {y}
f => {e}
}

scala> g.rootNodes(ignoreSelfRecursiveDependencies = true)
res1: scala.collection.mutable.Set[AnyRef] = Set(a)

scala> g.rootNodes(ignoreSelfRecursiveDependencies = false)
res2: scala.collection.mutable.Set[AnyRef] = Set(y, a)
  5. def toDot(dir: String = "forward", ranksep: String = "1.0", rankdir: String = "TB"): String
  6. def toNodes: Iterable[Node]
  7. def toString(): String
    Definition Classes
    AbstractGraph → Function1 → AnyRef → Any