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 tac

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

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

    Definition Classes
    opalj
  • package fpcf
    Definition Classes
    tac
  • package analyses
    Definition Classes
    fpcf
  • abstract class AbstractIFDSAnalysis[IFDSFact <: AbstractIFDSFact] extends FPCFAnalysis

    A framework for IFDS analyses.

    A framework for IFDS analyses.

    IFDSFact

    The type of flow facts the concrete analysis wants to track

    Definition Classes
    analyses
  • State

class State extends AnyRef

The state of the analysis. For each method and source fact, there is a separate state.

Source
AbstractIFDSAnalysis.scala
Linear Supertypes
AnyRef, Any
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Instance Constructors

  1. new State(declaringClass: ObjectType, context: Context, source: (Context, IFDSFact), code: Array[Stmt[V]], cfg: CFG[Stmt[V], TACStmts[V]], pendingIfdsCallSites: Map[(Context, IFDSFact), Set[(BasicBlock, Int)]], pendingIfdsDependees: Map[(Context, IFDSFact), EOptionP[(Context, IFDSFact), IFDSProperty[IFDSFact]]] = Map.empty, pendingCgCallSites: Set[BasicBlock] = Set.empty, cgDependency: Option[SomeEOptionP] = None, incomingFacts: Map[BasicBlock, Set[IFDSFact]] = Map.empty, outgoingFacts: Map[BasicBlock, Map[CFGNode, Set[IFDSFact]]] = Map.empty)

    declaringClass

    The class defining the analyzed method.

    source

    A fact, that holds at the beginning of method.

    code

    The code of method.

    cfg

    The control glow graph of method.

    pendingIfdsCallSites

    Maps callees of the analyzed method together with their input facts to the basic block and statement index of the call site(s).

    pendingIfdsDependees

    Maps callees of the analyzed method together with their input facts to the intermediate result of their IFDS analysis. Only contains method-fact-pairs, for which this analysis is waiting for a result.

    pendingCgCallSites

    The basic blocks containing call sites, for which the analysis is still waiting for the call graph result.

    cgDependency

    If present, the analysis is waiting for the method's call graph.

    incomingFacts

    Maps each basic block to the data flow facts valid at its first statement.

    outgoingFacts

    Maps each basic block and successor node to the data flow facts valid at the beginning of the node.

Value Members

  1. val cfg: CFG[Stmt[V], TACStmts[V]]
  2. var cgDependency: Option[SomeEOptionP]
  3. val code: Array[Stmt[V]]
  4. val context: Context
  5. val declaringClass: ObjectType
  6. var incomingFacts: Map[BasicBlock, Set[IFDSFact]]
  7. var outgoingFacts: Map[BasicBlock, Map[CFGNode, Set[IFDSFact]]]
  8. var pendingCgCallSites: Set[BasicBlock]
  9. var pendingIfdsCallSites: Map[(Context, IFDSFact), Set[(BasicBlock, Int)]]
  10. var pendingIfdsDependees: Map[(Context, IFDSFact), EOptionP[(Context, IFDSFact), IFDSProperty[IFDSFact]]]
  11. val source: (Context, IFDSFact)