Scala Compiler2.13.18 < Back
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# Packages

-  package root

  The Scala compiler and reflection APIs.

  The Scala compiler and reflection APIs.

  Definition Classes
    root
-  package scala
  Definition Classes
    root
-  package tools
  Definition Classes
    scala
-  package nsc
  Definition Classes
    tools
-  package backend
  Definition Classes
    nsc
-  package jvm
  Definition Classes
    backend
-  package opt
  Definition Classes
    jvm
- BoxUnbox
- ByteCodeRepository
- BytecodeUtils
- CallGraph
- ClosureOptimizer
- CopyProp
- FifoCache
- InlineInfoAttribute
- InlineInfoAttributePrototype
- Inliner
- InlinerHeuristics
- LabelNotLive
- LocalOpt
- LocalOptImpls
- RemovePair
- RemovePairDependency

c

scala.tools.nsc.backend.jvm.opt

# ByteCodeRepository

###

#### abstract class ByteCodeRepository extends PerRunInit

The ByteCodeRepository provides utilities to read the bytecode of classfiles from the compilation classpath. Parsed classes are cached in the `classes` map.

Source
  ByteCodeRepository.scala

Linear Supertypes
PerRunInit, AnyRef, Any
Type Hierarchy

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. ByteCodeRepository
2. PerRunInit
3. AnyRef
4. Any

Implicitly

1. by any2stringadd
2. by StringFormat
3. by Ensuring
4. by ArrowAssoc

1. Hide All
2. Show All

Visibility

1. Public
2. Protected

### Instance Constructors

1.  new ByteCodeRepository()

### Abstract Value Members

1.  abstract val postProcessor: PostProcessor

### Concrete Value Members

1.  final def !=(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
2.  final def ##: Int
   Definition Classes
     AnyRef → Any
3.  def +(other: String): String
   Implicit
     This member is added by an implicit conversion from ByteCodeRepository toany2stringadd[ByteCodeRepository] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  def ->[B](y: B): (ByteCodeRepository, B)
   Implicit
     This member is added by an implicit conversion from ByteCodeRepository toArrowAssoc[ByteCodeRepository] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()
5.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
6.  def add(classNode: ClassNode, sourceFilePath: Option[String]): Unit
7.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
8.  def classNode(internalName: InternalName): Either[ClassNotFound, ClassNode]

   The class node for an internal name.

   The class node for an internal name. If the class node is not yet available, it is parsed from the classfile on the compile classpath.

9.  def classNodeAndSourceFilePath(internalName: InternalName): Either[ClassNotFound, (ClassNode, Option[String])]

   The class node and source file path (if the class is being compiled) for an internal name.

   The class node and source file path (if the class is being compiled) for an internal name. If the class node is not yet available, it is parsed from the classfile on the compile classpath.

10.  def clone(): AnyRef
    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.CloneNotSupportedException]) @native()
11.  val compilingClasses: Map[InternalName, (ClassNode, String)]

    Contains ClassNodes and the canonical path of the source file path of classes being compiled in the current compilation run.

12.  def ensuring(cond: (ByteCodeRepository) => Boolean, msg: => Any): ByteCodeRepository
    Implicit
      This member is added by an implicit conversion from ByteCodeRepository toEnsuring[ByteCodeRepository] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
13.  def ensuring(cond: (ByteCodeRepository) => Boolean): ByteCodeRepository
    Implicit
      This member is added by an implicit conversion from ByteCodeRepository toEnsuring[ByteCodeRepository] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
14.  def ensuring(cond: Boolean, msg: => Any): ByteCodeRepository
    Implicit
      This member is added by an implicit conversion from ByteCodeRepository toEnsuring[ByteCodeRepository] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
15.  def ensuring(cond: Boolean): ByteCodeRepository
    Implicit
      This member is added by an implicit conversion from ByteCodeRepository toEnsuring[ByteCodeRepository] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
16.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
17.  def equals(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef → Any
18.  def fieldNode(classInternalName: InternalName, name: String, descriptor: String): Either[FieldNotFound, (FieldNode, InternalName)]

    The field node for a field matching `name` and `descriptor`, accessed in class `classInternalName`.

    The field node for a field matching `name` and `descriptor`, accessed in class `classInternalName`. The declaration of the field may be in one of the superclasses.

    returns

      The FieldNode of the requested field and the InternalName of its declaring class, or an error message if the field could not be found

19.  def finalize(): Unit
    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.Throwable])
20.  final def getClass(): Class[_ <: AnyRef]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
21.  def hashCode(): Int
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
22.  def initialize(): Unit
    Definition Classes
      PerRunInit
23.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
24.  def methodNode(ownerInternalNameOrArrayDescriptor: String, name: String, descriptor: String): Either[MethodNotFound, (MethodNode, InternalName)]

    The method node for a method matching `name` and `descriptor`, accessed in class `ownerInternalNameOrArrayDescriptor`.

    The method node for a method matching `name` and `descriptor`, accessed in class `ownerInternalNameOrArrayDescriptor`. The declaration of the method may be in one of the parents.

    Note that the JVM spec performs method lookup in two steps: resolution and selection.

    Method resolution, defined in jvms-5.4.3.3 and jvms-5.4.3.4, is the first step and is identical for all invocation styles (virtual, interface, special, static). If C is the receiver class in the invocation instruction: 1 find a matching method (name and descriptor) in C 2 then in C's superclasses 3 then find the maximally-specific matching superinterface methods, succeed if there's a single non-abstract one. static and private methods in superinterfaces are not considered. 4 then pick a random non-static, non-private superinterface method. 5 then fail.

    Note that for an `invokestatic` instruction, a method reference `B.m` may resolve to `A.m`, if class `B` doesn't specify a matching method `m`, but the parent `A` does.

    Selection depends on the invocation style and is defined in jvms-6.5.

    - invokestatic: invokes the resolved method
    - invokevirtual / invokeinterface: searches for an override of the resolved method starting at the dynamic receiver type. the search procedure is basically the same as in resolution, but it fails at 4 instead of picking a superinterface method at random.
    - invokespecial: if C is the receiver in the invocation instruction, searches for an override of the resolved method starting at
      - the superclass of the current class, if C is a superclass of the current class
      - C otherwise again, the search procedure is the same.

    In the method here we implement method *resolution*. Whether or not the returned method is actually invoked at runtime depends on the invocation instruction and the class hierarchy, so the users (e.g. the inliner) have to be aware of method selection.

    Note that the returned method may be abstract (ACC_ABSTRACT), native (ACC_NATIVE) or signature polymorphic (methods `invoke` and `invokeExact` in class `MethodHandles`).

    returns

      The MethodNode of the requested method and the InternalName of its declaring class, or an error message if the method could not be found. An error message is also returned if method resolution results in multiple default methods.

25.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
26.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
27.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
28.  val parsedClasses: Map[InternalName, Either[ClassNotFound, ClassNode]]

    Cache for parsed ClassNodes, an LRU or size maxCacheSize For Java classes in mixed compilation, the map contains an error message: no ClassNode is generated by the backend and also no classfile that could be parsed.

    Cache for parsed ClassNodes, an LRU or size maxCacheSize For Java classes in mixed compilation, the map contains an error message: no ClassNode is generated by the backend and also no classfile that could be parsed. Note - although this is typed a mutable.Map, individual simple get and put operations are threadsafe as the underlying data structure is synchronized.

29.  def perRunInit(init: => Unit): Unit
    Definition Classes
      PerRunInit
30.  final def synchronized[T0](arg0: => T0): T0
    Definition Classes
      AnyRef
31.  def toString(): String
    Definition Classes
      AnyRef → Any
32.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
33.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
34.  final def wait(arg0: Long): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException]) @native()

### Deprecated Value Members

1.  def formatted(fmtstr: String): String
   Implicit
     This member is added by an implicit conversion from ByteCodeRepository toStringFormat[ByteCodeRepository] performed by method StringFormat in scala.Predef.
   Definition Classes
     StringFormat
   Annotations
     @deprecated @inline()
   Deprecated

     (Since version 2.12.16) Use `formatString.format(value)` instead of `value.formatted(formatString)`, or use the `f""` string interpolator. In Java 15 and later, `formatted` resolves to the new method in String which has reversed parameters.

2.  def →[B](y: B): (ByteCodeRepository, B)
   Implicit
     This member is added by an implicit conversion from ByteCodeRepository toArrowAssoc[ByteCodeRepository] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @deprecated
   Deprecated

     (Since version 2.13.0) Use `->` instead. If you still wish to display it as one character, consider using a font with programming ligatures such as Fira Code.

### Inherited from PerRunInit

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd fromByteCodeRepository to any2stringadd[ByteCodeRepository]

### Inherited by implicit conversion StringFormat fromByteCodeRepository to StringFormat[ByteCodeRepository]

### Inherited by implicit conversion Ensuring fromByteCodeRepository to Ensuring[ByteCodeRepository]

### Inherited by implicit conversion ArrowAssoc fromByteCodeRepository to ArrowAssoc[ByteCodeRepository]

### Ungrouped