Packages

trait JavaMirror extends api.Mirror[JavaUniverse.this.type] with RuntimeMirror

A refinement of scala.reflect.api.Mirror for runtime reflection using JVM classloaders.

With this upgrade, mirrors become capable of converting Scala reflection artifacts (symbols and types) into Java reflection artifacts (classes) and vice versa. Consequently, refined mirrors become capable of performing reflective invocations (getting/setting field values, calling methods, etc).

For more information about Mirrorss, see scala.reflect.api.Mirrors or the Reflection Guide: Mirrors

Source
JavaUniverse.scala
Type Hierarchy
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Inherited
  1. JavaMirror
  2. RuntimeMirror
  3. ReflectiveMirror
  4. Mirror
  5. AnyRef
  6. Any
Implicitly
  1. by any2stringadd
  2. by StringFormat
  3. by Ensuring
  4. by ArrowAssoc
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Visibility
  1. Public
  2. Protected

Abstract Value Members

  1. abstract def EmptyPackage: JavaUniverse.ModuleSymbol

    The module symbol of the default (unnamed) package

    The module symbol of the default (unnamed) package

    Definition Classes
    Mirror
  2. abstract def EmptyPackageClass: JavaUniverse.ClassSymbol

    The module class symbol of the default (unnamed) package

    The module class symbol of the default (unnamed) package

    Definition Classes
    Mirror
  3. abstract def RootClass: JavaUniverse.ClassSymbol

    The class symbol of the _root_ package

    The class symbol of the _root_ package

    Definition Classes
    Mirror
  4. abstract def RootPackage: JavaUniverse.ModuleSymbol

    The module symbol of the _root_ package

    The module symbol of the _root_ package

    Definition Classes
    Mirror
  5. abstract val classLoader: ClassLoader
  6. abstract def classSymbol(rtcls: RuntimeClass): JavaUniverse.ClassSymbol

    A class symbol for the specified runtime class.

    A class symbol for the specified runtime class.

    returns

    The class symbol for the runtime class in the current class loader.

    Definition Classes
    RuntimeMirror
    Exceptions thrown

    java.lang.ClassNotFoundException if no class with that name exists

    scala.ScalaReflectionException if no corresponding symbol exists to do: throws anything else?

  7. abstract def moduleSymbol(rtcls: RuntimeClass): JavaUniverse.ModuleSymbol

    A module symbol for the specified runtime class.

    A module symbol for the specified runtime class.

    returns

    The module symbol for the runtime class in the current class loader.

    Definition Classes
    RuntimeMirror
    Exceptions thrown

    java.lang.ClassNotFoundException if no class with that name exists

    scala.ScalaReflectionException if no corresponding symbol exists to do: throws anything else?

  8. abstract def reflect[T](obj: T)(implicit arg0: ClassTag[T]): JavaUniverse.InstanceMirror

    A reflective mirror for the given object.

    A reflective mirror for the given object.

    Such a mirror can be used to further reflect against the members of the object to get/set fields, invoke methods and inspect inner classes and objects.

    Definition Classes
    ReflectiveMirror
  9. abstract def reflectClass(cls: JavaUniverse.ClassSymbol): JavaUniverse.ClassMirror

    Reflects against a static class symbol and returns a mirror that can be used to create instances of the class, inspect its companion object or perform further reflections.

    Reflects against a static class symbol and returns a mirror that can be used to create instances of the class, inspect its companion object or perform further reflections.

    To get a class symbol by the name of the class you would like to reflect, use <this mirror>.classSymbol(<runtime class loaded by its name>).

    The input symbol can be either private or non-private (Scala reflection transparently deals with visibility). It must be static, i.e. either top-level or nested within one or several static objects.

    Definition Classes
    ReflectiveMirror
  10. abstract def reflectModule(mod: JavaUniverse.ModuleSymbol): JavaUniverse.ModuleMirror

    Reflects against a static module symbol and returns a mirror that can be used to get the instance of the object or inspect its companion class.

    Reflects against a static module symbol and returns a mirror that can be used to get the instance of the object or inspect its companion class.

    To get a module symbol by the name of its companion class you would like to reflect, use <this mirror>.classSymbol(<runtime class loaded by its name>).companion.get.

    The input symbol can be either private or non-private (Scala reflection transparently deals with visibility). It must be static, i.e. either top-level or nested within one or several static objects.

    Definition Classes
    ReflectiveMirror
  11. abstract def runtimeClass(cls: JavaUniverse.ClassSymbol): RuntimeClass

    Maps a Scala class symbol to the corresponding Java class object

    Maps a Scala class symbol to the corresponding Java class object

    Definition Classes
    RuntimeMirror
    Exceptions thrown

    java.lang.ClassNotFoundException if there is no Java class corresponding to the given Scala class symbol. Note: If the Scala symbol is ArrayClass, a ClassNotFound exception is thrown because there is no unique Java class corresponding to a Scala generic array

  12. abstract def runtimeClass(tpe: JavaUniverse.Type): RuntimeClass

    Maps a Scala type to the corresponding Java class object

    Maps a Scala type to the corresponding Java class object

    Definition Classes
    RuntimeMirror
  13. abstract def staticClass(fullName: String): JavaUniverse.ClassSymbol

    The symbol corresponding to the globally accessible class with the given fully qualified name fullName.

    The symbol corresponding to the globally accessible class with the given fully qualified name fullName.

    If the name points to a type alias, it's recursively dealiased and its target is returned. If you need a symbol that corresponds to the type alias itself, load it directly from the package class:

    scala> cm.staticClass("scala.List") res0: scala.reflect.runtime.universe.ClassSymbol = class List

    scala> res0.fullName res1: String = scala.collection.immutable.List

    scala> cm.staticPackage("scala") res2: scala.reflect.runtime.universe.ModuleSymbol = package scala

    scala> res2.moduleClass.info member TypeName("List") res3: scala.reflect.runtime.universe.Symbol = type List

    scala> res3.fullName res4: String = scala.List

    To be consistent with Scala name resolution rules, in case of ambiguity between a package and an object, the object is never been considered.

    For example for the following code:

    package foo { class B }

    object foo { class A class B }

    staticClass("foo.B") will resolve to the symbol corresponding to the class B declared in the package foo, and staticClass("foo.A") will throw a ScalaReflectionException.

    In the example above, to load a symbol that corresponds to the class B declared in the object foo, use staticModule("foo") to load the module symbol and then navigate info.members of its moduleClass.

    Definition Classes
    Mirror
  14. abstract def staticModule(fullName: String): JavaUniverse.ModuleSymbol

    The symbol corresponding to the globally accessible object with the given fully qualified name fullName.

    The symbol corresponding to the globally accessible object with the given fully qualified name fullName.

    To be consistent with Scala name resolution rules, in case of ambiguity between a package and an object, the object is never been considered.

    For example for the following code:

    package foo { object B }

    object foo { object A object B }

    staticModule("foo.B") will resolve to the symbol corresponding to the object B declared in the package foo, and staticModule("foo.A") will throw a ScalaReflectionException

    In the example above, to load a symbol that corresponds to the object B declared in the object foo, use staticModule("foo") to load the module symbol and then navigate info.members of its moduleClass.

    Definition Classes
    Mirror
  15. abstract def staticPackage(fullName: String): JavaUniverse.ModuleSymbol

    The symbol corresponding to a package with the given fully qualified name fullName.

    The symbol corresponding to a package with the given fully qualified name fullName.

    Definition Classes
    Mirror
  16. abstract def symbolOf[T](implicit arg0: JavaUniverse.WeakTypeTag[T]): JavaUniverse.TypeSymbol

    Type symbol of x as derived from a type tag.

    Type symbol of x as derived from a type tag.

    Definition Classes
    Mirror
  17. abstract val universe: JavaUniverse.this.type

    The universe this mirror belongs to.

    The universe this mirror belongs to.

    Definition Classes
    Mirror

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 JavaMirror toany2stringadd[JavaMirror] performed by method any2stringadd in scala.Predef.
    Definition Classes
    any2stringadd
  4. def ->[B](y: B): (JavaMirror, B)
    Implicit
    This member is added by an implicit conversion from JavaMirror toArrowAssoc[JavaMirror] 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 ensuring(cond: (JavaMirror) => Boolean, msg: => Any): JavaMirror
    Implicit
    This member is added by an implicit conversion from JavaMirror toEnsuring[JavaMirror] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  9. def ensuring(cond: (JavaMirror) => Boolean): JavaMirror
    Implicit
    This member is added by an implicit conversion from JavaMirror toEnsuring[JavaMirror] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  10. def ensuring(cond: Boolean, msg: => Any): JavaMirror
    Implicit
    This member is added by an implicit conversion from JavaMirror toEnsuring[JavaMirror] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: Boolean): JavaMirror
    Implicit
    This member is added by an implicit conversion from JavaMirror toEnsuring[JavaMirror] performed by method Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  14. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  15. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  16. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  17. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  18. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  19. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @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
    JavaMirror → AnyRef → Any
  23. def typeOf[T](implicit arg0: JavaUniverse.TypeTag[T]): JavaUniverse.Type

    Shortcut for implicitly[TypeTag[T]].tpe

    Shortcut for implicitly[TypeTag[T]].tpe

    Definition Classes
    Mirror
  24. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  25. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  26. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()
  27. def weakTypeOf[T](implicit arg0: JavaUniverse.WeakTypeTag[T]): JavaUniverse.Type

    Shortcut for implicitly[WeakTypeTag[T]].tpe

    Shortcut for implicitly[WeakTypeTag[T]].tpe

    Definition Classes
    Mirror

Deprecated Value Members

  1. def formatted(fmtstr: String): String
    Implicit
    This member is added by an implicit conversion from JavaMirror toStringFormat[JavaMirror] 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): (JavaMirror, B)
    Implicit
    This member is added by an implicit conversion from JavaMirror toArrowAssoc[JavaMirror] 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 api.Mirror[JavaUniverse.this.type]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd fromJavaMirror to any2stringadd[JavaMirror]

Inherited by implicit conversion StringFormat fromJavaMirror to StringFormat[JavaMirror]

Inherited by implicit conversion Ensuring fromJavaMirror to Ensuring[JavaMirror]

Inherited by implicit conversion ArrowAssoc fromJavaMirror to ArrowAssoc[JavaMirror]

Mirror

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