Scala Compiler2.12.16 < 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 classpath
  Definition Classes
    nsc
- AggregateClassPath
- ClassFileEntry
- ClassPathEntries
- ClassPathFactory
- CtSymClassPath
- DirectoryClassPath
- DirectoryLookup
- DirectorySourcePath
- FileBasedCache
- FileUtils
- JFileDirectoryLookup
- JrtClassPath
- PackageEntry
- PackageName
- PackageNameUtils
- SourceFileEntry
- VirtualDirectoryClassPath
- ZipAndJarClassPathFactory
- ZipAndJarFileLookupFactory
- ZipAndJarSourcePathFactory
- ZipArchiveFileLookup

t

scala.tools.nsc.classpath

# JFileDirectoryLookup 

###

#### trait JFileDirectoryLookup[FileEntryType <: ClassRepresentation] extends DirectoryLookup[FileEntryType]

Source
  DirectoryClassPath.scala

Linear Supertypes
DirectoryLookup[FileEntryType], EfficientClassPath, ClassPath, AnyRef, Any
Known Subclasses
DirectoryClassPath, DirectorySourcePath
 
Ordering

1. Alphabetic
2. By Inheritance

Inherited

1. JFileDirectoryLookup
2. DirectoryLookup
3. EfficientClassPath
4. ClassPath
5. AnyRef
6. Any

Implicitly

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

1. Hide All
2. Show All

Visibility

1. Public
2. All

### Type Members

1.  type F = File
   Definition Classes
     JFileDirectoryLookup → DirectoryLookup

### Abstract Value Members

1.  abstract def asSourcePathString: String

   The whole sourcepath in the form of one String.

   The whole sourcepath in the form of one String.

   Definition Classes
     ClassPath
2.  abstract def createFileEntry(file: AbstractFile): FileEntryType
   Attributes
     protected
   Definition Classes
     DirectoryLookup
3.  abstract val dir: F
   Definition Classes
     DirectoryLookup
4.  abstract def findClassFile(className: String): Option[AbstractFile]

   Returns the classfile for an external name, e.g., "java.lang.String".

   Returns the classfile for an external name, e.g., "java.lang.String". This method does not return source files.

   This method is used by the classfile parser. When parsing a Java class, its own inner classes are entered with a `ClassfileLoader` that parses the classfile returned by this method. It is also used in the backend, by the inliner, to obtain the bytecode when inlining from the classpath. It's also used by scalap.

   Definition Classes
     ClassPath
5.  abstract def isMatchingFile(f: F): Boolean
   Attributes
     protected
   Definition Classes
     DirectoryLookup

### 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 JFileDirectoryLookup[FileEntryType] to any2stringadd[JFileDirectoryLookup[FileEntryType]] performed by method any2stringadd in scala.Predef.
   Definition Classes
     any2stringadd
4.  def ->[B](y: B): (JFileDirectoryLookup[FileEntryType], B)
   Implicit
     This member is added by an implicit conversion from JFileDirectoryLookup[FileEntryType] to ArrowAssoc[JFileDirectoryLookup[FileEntryType]] performed by method ArrowAssoc in scala.Predef.
   Definition Classes
     ArrowAssoc
   Annotations
     @inline()
5.  final def ==(arg0: Any): Boolean
   Definition Classes
     AnyRef → Any
6.  def asClassPathString: String

   The whole classpath in the form of one String.

   The whole classpath in the form of one String.

   Definition Classes
     ClassPath
7.  def asClassPathStrings: Seq[String]
   Definition Classes
     JFileDirectoryLookup → ClassPath
8.  final def asInstanceOf[T0]: T0
   Definition Classes
     Any
9.  def asURLs: Seq[URL]
   Definition Classes
     JFileDirectoryLookup → ClassPath
10.  final def classes(inPackage: String): Seq[ClassFileEntry]
    Definition Classes
      ClassPath
11.  def clone(): AnyRef
    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( ... ) @native()
12.  def emptyFiles: Array[File]
    Attributes
      protected
    Definition Classes
      JFileDirectoryLookup → DirectoryLookup
13.  def ensuring(cond: (JFileDirectoryLookup[FileEntryType]) ⇒ Boolean, msg: ⇒ Any): JFileDirectoryLookup[FileEntryType]
    Implicit
      This member is added by an implicit conversion from JFileDirectoryLookup[FileEntryType] to Ensuring[JFileDirectoryLookup[FileEntryType]] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
14.  def ensuring(cond: (JFileDirectoryLookup[FileEntryType]) ⇒ Boolean): JFileDirectoryLookup[FileEntryType]
    Implicit
      This member is added by an implicit conversion from JFileDirectoryLookup[FileEntryType] to Ensuring[JFileDirectoryLookup[FileEntryType]] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
15.  def ensuring(cond: Boolean, msg: ⇒ Any): JFileDirectoryLookup[FileEntryType]
    Implicit
      This member is added by an implicit conversion from JFileDirectoryLookup[FileEntryType] to Ensuring[JFileDirectoryLookup[FileEntryType]] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
16.  def ensuring(cond: Boolean): JFileDirectoryLookup[FileEntryType]
    Implicit
      This member is added by an implicit conversion from JFileDirectoryLookup[FileEntryType] to Ensuring[JFileDirectoryLookup[FileEntryType]] performed by method Ensuring in scala.Predef.
    Definition Classes
      Ensuring
17.  final def eq(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
18.  def equals(arg0: Any): Boolean
    Definition Classes
      AnyRef → Any
19.  def files(inPackage: PackageName): Seq[FileEntryType]
    Attributes
      protected
    Definition Classes
      DirectoryLookup
20.  def finalize(): Unit
    Attributes
      protected[lang]
    Definition Classes
      AnyRef
    Annotations
      @throws( classOf[java.lang.Throwable] )
21.  def findClass(className: String): Option[ClassRepresentation]

    Returns the class file and / or source file for a given external name, e.g., "java.lang.String".

    Returns the class file and / or source file for a given external name, e.g., "java.lang.String". If there is both a class file and source file, the compiler can decide whether to read the class file or compile the source file.

    Internally this seems to be used only by `ScriptRunner`, but only to call `.isDefined`. That could probably be implemented differently.

    Externally, it is used by sbt's compiler interface: https://github.com/sbt/sbt/blob/v0.13.15/compile/interface/src/main/scala/xsbt/CompilerInterface.scala#L249 Jason has some improvements for that in the works (https://github.com/scala/bug/issues/10289#issuecomment-310022699)

    Definition Classes
      ClassPath
22.  final def getClass(): Class[_]
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
23.  def getName(f: File): String
    Attributes
      protected
    Definition Classes
      JFileDirectoryLookup → DirectoryLookup
24.  def getSubDir(packageDirName: String): Option[File]
    Attributes
      protected
    Definition Classes
      JFileDirectoryLookup → DirectoryLookup
25.  final def hasPackage(pkg: String): Boolean
    Definition Classes
      ClassPath
26.  def hashCode(): Int
    Definition Classes
      AnyRef → Any
    Annotations
      @native()
27.  final def isInstanceOf[T0]: Boolean
    Definition Classes
      Any
28.  def isPackage(f: File): Boolean
    Attributes
      protected
    Definition Classes
      JFileDirectoryLookup → DirectoryLookup
29.  final def list(inPackage: String): ClassPathEntries
    Definition Classes
      ClassPath
30.  def listChildren(dir: File, filter: Option[(File) ⇒ Boolean]): Array[File]
    Attributes
      protected
    Definition Classes
      JFileDirectoryLookup → DirectoryLookup
31.  final def ne(arg0: AnyRef): Boolean
    Definition Classes
      AnyRef
32.  final def notify(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
33.  final def notifyAll(): Unit
    Definition Classes
      AnyRef
    Annotations
      @native()
34.  final def packages(inPackage: String): Seq[PackageEntry]
    Definition Classes
      ClassPath
35.  final def sources(inPackage: String): Seq[SourceFileEntry]
    Definition Classes
      ClassPath
36.  final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
      AnyRef
37.  def toAbstractFile(f: File): AbstractFile
    Attributes
      protected
    Definition Classes
      JFileDirectoryLookup → DirectoryLookup
38.  def toString(): String
    Definition Classes
      AnyRef → Any
39.  final def wait(): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
40.  final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... )
41.  final def wait(arg0: Long): Unit
    Definition Classes
      AnyRef
    Annotations
      @throws( ... ) @native()
42.  def →[B](y: B): (JFileDirectoryLookup[FileEntryType], B)
    Implicit
      This member is added by an implicit conversion from JFileDirectoryLookup[FileEntryType] to ArrowAssoc[JFileDirectoryLookup[FileEntryType]] performed by method ArrowAssoc in scala.Predef.
    Definition Classes
      ArrowAssoc

### Deprecated Value Members

1.  def asClasspathString: String
   Definition Classes
     ClassPath
   Annotations
     @deprecated
   Deprecated

     (Since version 2.11.5) use asClassPathString instead of this one

2.  def formatted(fmtstr: String): String
   Implicit
     This member is added by an implicit conversion from JFileDirectoryLookup[FileEntryType] to StringFormat[JFileDirectoryLookup[FileEntryType]] 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.

### Inherited from DirectoryLookup[FileEntryType]

### Inherited from EfficientClassPath

### Inherited from ClassPath

### Inherited from AnyRef

### Inherited from Any

### Inherited by implicit conversion any2stringadd from JFileDirectoryLookup[FileEntryType] to any2stringadd[JFileDirectoryLookup[FileEntryType]]

### Inherited by implicit conversion StringFormat from JFileDirectoryLookup[FileEntryType] to StringFormat[JFileDirectoryLookup[FileEntryType]]

### Inherited by implicit conversion Ensuring from JFileDirectoryLookup[FileEntryType] to Ensuring[JFileDirectoryLookup[FileEntryType]]

### Inherited by implicit conversion ArrowAssoc from JFileDirectoryLookup[FileEntryType] to ArrowAssoc[JFileDirectoryLookup[FileEntryType]]

### Ungrouped