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. Furthermore, the concrete data-structure is always considered an implementation detail and may change at any time.

    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 ba

    Implementation of an eDSL for creating Java bytecode.

    Implementation of an eDSL for creating Java bytecode. The eDSL is designed to facilitate the creation of correct class files; i.e., whenever possible it tries to fill wholes. For example, when an interface is specified the library automatically ensures that the super class type is (initially) set to java.lang.Object as required by the JVM specification.

    This package in particular provides functionality to convert org.opalj.br classes to org.opalj.da classes.

    Definition Classes
    opalj
  • AccessModifier
  • AnnotatedInstructionElement
  • BRConstantsBuffer
  • CATCH
  • CLASS
  • CODE
  • CodeAttributeBuilder
  • CodeElement
  • EXCEPTIONS
  • ExceptionHandlerElement
  • ExceptionHandlerGenerator
  • FIELD
  • FIELDS
  • FirstInstrumentation
  • InsertionPosition
  • InstructionElement
  • InstructionLikeElement
  • LINENUMBER
  • LabelElement
  • LabeledCode
  • LineNumberTableBuilder
  • METHOD
  • METHODS
  • PCMapping
  • ProjectBasedInMemoryClassLoader
  • PseudoInstruction
  • SecondInstrumentation
  • SimpleInstrumentationDemo
  • TRY
  • TRYEND
  • ThirdInstrumentation
  • ToDAConfig

class CodeAttributeBuilder[T] extends br.CodeAttributeBuilder[(Map[PC, T], List[String])]

Builder for the org.opalj.br.Code attribute with all its properties. The Builder is created using the CODE factory.

The max_stack and max_locals values will be calculated if not explicitly defined.

Source
CodeAttributeBuilder.scala
Linear Supertypes
br.CodeAttributeBuilder[(Map[PC, T], List[String])], AnyRef, Any
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  1. final def !=(arg0: Any): Boolean
    Definition Classes
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  2. final def ##(): Int
    Definition Classes
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  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def MAXLOCALS(value: Int): CodeAttributeBuilder.this.type

    Defines the max_locals value.

    Defines the max_locals value.

    (This overrides/disables the automatic computation of this value.)

  5. def MAXSTACK(value: Int): CodeAttributeBuilder.this.type

    Defines the max_stack value.

    Defines the max_stack value.

    (This overrides/disables the automatic computation of this value.)

  6. def apply(classFileVersion: UShortPair, declaringClassType: ObjectType, accessFlags: Int, name: String, descriptor: MethodDescriptor)(implicit classHierarchy: ClassHierarchy): (Code, (Map[PC, T], List[String]))

    Creates a Code attribute.

    Creates a Code attribute.

    The classHierarchy is required iff a Java 6 or newer class file is created and the code requires the computation of a new stack map table. If this is not the case the class hierarchy can be null.

    classFileVersion

    The class file version determines which attributes are allowed/ required. In particular required to determine if a org.opalj.br.StackMapTable attribute needs to be computed.

    accessFlags

    The declaring method's access flags, required during code validation or when MAXSTACK/MAXLOCALS needs to be computed.

    name

    The name of the method.

    descriptor

    The declaring method's descriptor; required during code validation or when MAXSTACK/MAXLOCALS needs to be computed.

    classHierarchy

    Required if a new org.opalj.br.StackMapTable attribute needs to be computed.

    returns

    The tuple: (the code attribute, (the extracted meta information, the list of warnings)).

    Definition Classes
    CodeAttributeBuilderCodeAttributeBuilder
  7. def apply(classFileVersion: UShortPair, method: Method)(implicit classHierarchy: ClassHierarchy = ...): (Code, (Map[PC, T], List[String]))

    Creates a Code attribute with respect to the given method; this is particularly useful when we do bytecode weaving.

    Creates a Code attribute with respect to the given method; this is particularly useful when we do bytecode weaving.

    classFileVersion

    The version of the class file to which the returned will be added eventually.

    See also

    apply(classFileVersion:UShortPair,accessFlags:Int,name:String,...) for more details.

  8. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  9. def bytecodeInstructions: Iterator[Instruction]

    Return an iterator over the code array; hence, will return null values whenever an instruction requires more than one byte in the array!

  10. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  11. def copy(attributes: Attributes = this.attributes): CodeAttributeBuilder[T]
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
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  13. def equals(arg0: Any): Boolean
    Definition Classes
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  14. def finalize(): Unit
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    @throws( classOf[java.lang.Throwable] )
  15. final def getClass(): Class[_]
    Definition Classes
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    @native()
  16. def hashCode(): Int
    Definition Classes
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    Annotations
    @native()
  17. final def isInstanceOf[T0]: Boolean
    Definition Classes
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  18. final def ne(arg0: AnyRef): Boolean
    Definition Classes
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  19. final def notify(): Unit
    Definition Classes
    AnyRef
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    @native()
  20. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  21. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  22. def toString(): String
    Definition Classes
    AnyRef → Any
  23. final def wait(): Unit
    Definition Classes
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    @throws( ... )
  24. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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    @throws( ... )
  25. final def wait(arg0: Long): Unit
    Definition Classes
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Inherited from br.CodeAttributeBuilder[(Map[PC, T], List[String])]

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