Scala Compiler2.13.7 < Back


# 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
-  abstract class BCodeHelpers extends BCodeIdiomatic
  Definition Classes
    jvm
- BCAnnotGen
- BCClassGen
- BCForwardersGen
- BCInnerClassGen
- BCJGenSigGen
- BCPickles
- EnclosingMethodEntry
- InsnIterInsnList
- InsnIterMethodNode
- JAndroidBuilder
- JCodeMethodN
- JCommonBuilder
- JMirrorBuilder
- LabelDefsFinder
- delambdafyInline
- isJavaEntryPoint

t

scala.tools.nsc.backend.jvm.BCodeHelpers

# BCAnnotGen

###

#### trait BCAnnotGen extends BCInnerClassGen

Source
  BCodeHelpers.scala

Linear Supertypes
BCInnerClassGen, AnyRef, Any
Known Subclasses
PlainBodyBuilder, BCForwardersGen, JCommonBuilder, JMirrorBuilder, PlainSkelBuilder, SyncAndTryBuilder
Type Hierarchy

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. BCAnnotGen
2. BCInnerClassGen
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

### 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 BCAnnotGen toany2stringadd[BCAnnotGen] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  def ->[B](y: B): (BCAnnotGen, B)
   Implicit
     This member is added by an implicit conversion from BCAnnotGen toArrowAssoc[BCAnnotGen] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()
5.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
6.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
7.  def clone(): AnyRef
   Attributes
     protected[lang]
   Definition Classes
     AnyRef
   Annotations
     @throws(classOf[java.lang.CloneNotSupportedException]) @native()
8.  def debugLevel: Int
   Definition Classes
     BCInnerClassGen
9.  def descriptorForErasedType(tp: Global.Type): String
10.  def emitAnnotations(fw: FieldVisitor, annotations: List[Global.AnnotationInfo]): Unit
11.  def emitAnnotations(mw: MethodVisitor, annotations: List[Global.AnnotationInfo]): Unit
12.  def emitAnnotations(cw: ClassVisitor, annotations: List[Global.AnnotationInfo]): Unit
13.  def emitArgument(av: AnnotationVisitor, name: String, arg: Global.ClassfileAnnotArg): Unit
14.  def emitAssocs(av: AnnotationVisitor, assocs: List[(Global.Name, Global.ClassfileAnnotArg)]): Unit
15.  final val emitLines: Boolean
    Definition Classes
      BCInnerClassGen
16.  def emitParamAnnotations(jmethod: MethodVisitor, pannotss: List[List[Global.AnnotationInfo]]): Unit
17.  def emitParamNames(jmethod: MethodVisitor, params: List[Global.Symbol]): Unit
18.  final val emitSource: Boolean
    Definition Classes
      BCInnerClassGen
19.  final val emitVars: Boolean
    Definition Classes
      BCInnerClassGen
20.  def ensuring(cond: (BCAnnotGen) => Boolean, msg: => Any): BCAnnotGen
    Implicit
      This member is added by an implicit conversion from BCAnnotGen toEnsuring[BCAnnotGen] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
21.  def ensuring(cond: (BCAnnotGen) => Boolean): BCAnnotGen
    Implicit
      This member is added by an implicit conversion from BCAnnotGen toEnsuring[BCAnnotGen] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
22.  def ensuring(cond: Boolean, msg: => Any): BCAnnotGen
    Implicit
      This member is added by an implicit conversion from BCAnnotGen toEnsuring[BCAnnotGen] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
23.  def ensuring(cond: Boolean): BCAnnotGen
    Implicit
      This member is added by an implicit conversion from BCAnnotGen toEnsuring[BCAnnotGen] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
24.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
25.  def equals(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef → Any
26.  def erasedType(tp: Global.Type): Global.Type

    Annotations are not processed by the compilation pipeline like ordinary trees.

    Annotations are not processed by the compilation pipeline like ordinary trees. Instead, the typer extracts them into scala.reflect.internal.AnnotationInfos.AnnotationInfo objects which are attached to the corresponding symbol (sym.annotations) or type (as an AnnotatedType, eliminated by erasure).

    For Scala annotations this is OK: they are stored in the pickle and ignored by the backend. Java annotations on the other hand are additionally emitted to the classfile in Java's format.

    This means that Type instances within an AnnotationInfo reach the backend non-erased. Examples:

    - @(javax.annotation.Resource @annotation.meta.getter) val x = 0 Here, annotationInfo.atp is an AnnotatedType.
    - @SomeAnnotation[T] val x = 0 In principle, the annotationInfo.atp is a non-erased type ref. However, this cannot actually happen because Java annotations cannot be generic.
    - @javax.annotation.Resource(`type` = classOf[List[_]]) val x = 0 The annotationInfo.assocs contains a LiteralAnnotArg(Constant(tp)) where tp is the non-erased existential type.
27.  def finalize(): Unit
    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.Throwable])
28.  final def getClass(): Class[_ <: AnyRef]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
29.  def hashCode(): Int
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
30.  final def internalName(sym: Global.Symbol): String

    The class internal name for a given class symbol.

    The class internal name for a given class symbol.

    Definition Classes
      BCInnerClassGen
31.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
32.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
33.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
34.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
35.  final def synchronized[T0](arg0: => T0): T0
    Definition Classes
      AnyRef
36.  def toString(): String
    Definition Classes
      AnyRef → Any
37.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
38.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
39.  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 BCAnnotGen toStringFormat[BCAnnotGen] 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): (BCAnnotGen, B)
   Implicit
     This member is added by an implicit conversion from BCAnnotGen toArrowAssoc[BCAnnotGen] 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 BCInnerClassGen

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd fromBCAnnotGen to any2stringadd[BCAnnotGen]

### Inherited by implicit conversion StringFormat fromBCAnnotGen to StringFormat[BCAnnotGen]

### Inherited by implicit conversion Ensuring fromBCAnnotGen to Ensuring[BCAnnotGen]

### Inherited by implicit conversion ArrowAssoc fromBCAnnotGen to ArrowAssoc[BCAnnotGen]

### Ungrouped