Scala Compiler2.13.17 < 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
-  abstract class BCodeHelpers extends BCodeIdiomatic
  Definition Classes
    jvm
- BCAnnotGen
- BCClassGen
- BCForwardersGen
- BCInnerClassGen
- BCJGenSigGen
- BCPickles
- EnclosingMethodEntry
- InsnIterInsnList
- InsnIterMethodNode
- JAndroidBuilder
- JCodeMethodN
- JCommonBuilder
- JMirrorBuilder
- LabelDefsFinder
- delambdafyInline
- isJavaEntryPoint

c

scala.tools.nsc.backend.jvm.BCodeHelpers

# JCommonBuilder

###

#### abstract class JCommonBuilder extends BCInnerClassGen with BCAnnotGen with BCForwardersGen with BCPickles

Source
  BCodeHelpers.scala

Linear Supertypes
BCPickles, BCForwardersGen, BCJGenSigGen, BCAnnotGen, BCInnerClassGen, AnyRef, Any
Known Subclasses
JMirrorBuilder
Type Hierarchy

Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. JCommonBuilder
2. BCPickles
3. BCForwardersGen
4. BCJGenSigGen
5. BCAnnotGen
6. BCInnerClassGen
7. AnyRef
8. Any

Implicitly

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

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2. Show All

Visibility

1. Public
2. Protected

### Instance Constructors

1.  new JCommonBuilder()

### 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 JCommonBuilder toany2stringadd[JCommonBuilder] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  def ->[B](y: B): (JCommonBuilder, B)
   Implicit
     This member is added by an implicit conversion from JCommonBuilder toArrowAssoc[JCommonBuilder] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()
5.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
6.  def addForwarders(jclass: ClassVisitor, jclassName: String, moduleClass: Global.Symbol): Unit
   Definition Classes
     BCForwardersGen
7.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
8.  def clone(): AnyRef
   Attributes
     protected[lang]
   Definition Classes
     AnyRef
   Annotations
     @throws(classOf[java.lang.CloneNotSupportedException]) @native()
9.  def createJAttribute(name: String, b: Array[Byte], offset: Int, len: Int): Attribute
   Definition Classes
     BCPickles
10.  def debugLevel: Int
    Definition Classes
      BCInnerClassGen
11.  def descriptorForErasedType(tp: Global.Type): String
    Definition Classes
      BCAnnotGen
12.  def emitAnnotations(fw: FieldVisitor, annotations: List[Global.AnnotationInfo]): Unit
    Definition Classes
      BCAnnotGen
13.  def emitAnnotations(mw: MethodVisitor, annotations: List[Global.AnnotationInfo]): Unit
    Definition Classes
      BCAnnotGen
14.  def emitAnnotations(cw: ClassVisitor, annotations: List[Global.AnnotationInfo]): Unit
    Definition Classes
      BCAnnotGen
15.  def emitArgument(av: AnnotationVisitor, name: String, arg: Global.ClassfileAnnotArg): Unit
    Definition Classes
      BCAnnotGen
16.  def emitAssocs(av: AnnotationVisitor, assocs: List[(Global.Name, Global.ClassfileAnnotArg)]): Unit
    Definition Classes
      BCAnnotGen
17.  final val emitLines: Boolean
    Definition Classes
      BCInnerClassGen
18.  def emitParamAnnotations(jmethod: MethodVisitor, pannotss: List[List[Global.AnnotationInfo]]): Unit
    Definition Classes
      BCAnnotGen
19.  def emitParamNames(jmethod: MethodVisitor, params: List[Global.Symbol]): Unit
    Definition Classes
      BCAnnotGen
20.  final val emitSource: Boolean
    Definition Classes
      BCInnerClassGen
21.  final val emitVars: Boolean
    Definition Classes
      BCInnerClassGen
22.  def ensuring(cond: (JCommonBuilder) => Boolean, msg: => Any): JCommonBuilder
    Implicit
      This member is added by an implicit conversion from JCommonBuilder toEnsuring[JCommonBuilder] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
23.  def ensuring(cond: (JCommonBuilder) => Boolean): JCommonBuilder
    Implicit
      This member is added by an implicit conversion from JCommonBuilder toEnsuring[JCommonBuilder] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
24.  def ensuring(cond: Boolean, msg: => Any): JCommonBuilder
    Implicit
      This member is added by an implicit conversion from JCommonBuilder toEnsuring[JCommonBuilder] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
25.  def ensuring(cond: Boolean): JCommonBuilder
    Implicit
      This member is added by an implicit conversion from JCommonBuilder toEnsuring[JCommonBuilder] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
26.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
27.  def equals(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef → Any
28.  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.
    Definition Classes
      BCAnnotGen
29.  def finalize(): Unit
    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.Throwable])
30.  def getAnnotPickle(jclassName: String, sym: Global.Symbol): Option[Global.AnnotationInfo]
    Definition Classes
      BCPickles
31.  final def getClass(): Class[_ <: AnyRef]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
32.  def getExceptions(excs: List[Global.AnnotationInfo]): List[String]
    Definition Classes
      BCForwardersGen
33.  def getGenericSignature(sym: Global.Symbol, owner: Global.Symbol, memberTpe: Global.Type): String
    Definition Classes
      BCJGenSigGen
34.  def getGenericSignature(sym: Global.Symbol, owner: Global.Symbol): String
    Definition Classes
      BCJGenSigGen
35.  def hashCode(): Int
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
36.  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
37.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
38.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
39.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
40.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
41.  def pickleMarkerForeign: Attribute
    Definition Classes
      BCPickles
42.  def pickleMarkerLocal: Attribute
    Definition Classes
      BCPickles
43.  final def synchronized[T0](arg0: => T0): T0
    Definition Classes
      AnyRef
44.  def toString(): String
    Definition Classes
      AnyRef → Any
45.  val versionPickle: PickleBuffer
    Definition Classes
      BCPickles
46.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
47.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws(classOf[java.lang.InterruptedException])
48.  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 JCommonBuilder toStringFormat[JCommonBuilder] 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): (JCommonBuilder, B)
   Implicit
     This member is added by an implicit conversion from JCommonBuilder toArrowAssoc[JCommonBuilder] 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 BCPickles

### Inherited from BCForwardersGen

### Inherited from BCJGenSigGen

### Inherited from BCAnnotGen

### Inherited from BCInnerClassGen

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd fromJCommonBuilder to any2stringadd[JCommonBuilder]

### Inherited by implicit conversion StringFormat fromJCommonBuilder to StringFormat[JCommonBuilder]

### Inherited by implicit conversion Ensuring fromJCommonBuilder to Ensuring[JCommonBuilder]

### Inherited by implicit conversion ArrowAssoc fromJCommonBuilder to ArrowAssoc[JCommonBuilder]

### Ungrouped