scala.reflect.api.JavaMirrors

JavaMirror

trait JavaMirror extends api.Mirror[JavaMirrors.this.type] with JavaUniverse.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
JavaMirrors.scala
Linear Supertypes
JavaUniverse.RuntimeMirror, JavaUniverse.ReflectiveMirror, api.Mirror[JavaMirrors.this.type], AnyRef, Any
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Inherited
  1. JavaMirror
  2. RuntimeMirror
  3. ReflectiveMirror
  4. Mirror
  5. AnyRef
  6. Any
Implicitly
  1. by any2stringadd
  2. by any2stringfmt
  3. by any2ArrowAssoc
  4. by any2Ensuring
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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: JavaUniverse.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.reflect.internal.MissingRequirementError

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

  7. abstract def moduleSymbol(rtcls: JavaUniverse.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.reflect.internal.MissingRequirementError

    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): JavaUniverse.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
    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): JavaUniverse.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: reflect.runtime.universe.ClassSymbol = class List

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

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

    scala> res2.moduleClass.typeSignature member newTypeName("List") res3: 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 MissingRequirementException (which is exactly what scalac would do if this fully qualified class name is written inside any package in a Scala program).

    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 typeSignature.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 MissingRequirementException (which is exactly what scalac would do if this fully qualified class name is written inside any package in a Scala program).

    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 typeSignature.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 val universe: JavaMirrors.this.type

    The universe this mirror belongs to.

    The universe this mirror belongs to.

    Definition Classes
    Mirror

Concrete Value Members

  1. final def !=(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  2. final def !=(arg0: Any): Boolean

    Test two objects for inequality.

    Test two objects for inequality.

    returns

    true if !(this == that), false otherwise.

    Definition Classes
    Any
  3. final def ##(): Int

    Equivalent to x.hashCode except for boxed numeric types and null.

    Equivalent to x.hashCode except for boxed numeric types and null. For numerics, it returns a hash value which is consistent with value equality: if two value type instances compare as true, then ## will produce the same hash value for each of them. For null returns a hashcode where null.hashCode throws a NullPointerException.

    returns

    a hash value consistent with ==

    Definition Classes
    AnyRef → Any
  4. def +(other: String): String

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to StringAdd performed by method any2stringadd in scala.Predef.
    Definition Classes
    StringAdd
  5. def ->[B](y: B): (JavaUniverse.JavaMirror, B)

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to ArrowAssoc[JavaUniverse.JavaMirror] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc
    Annotations
    @inline()
  6. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef
  7. final def ==(arg0: Any): Boolean

    Test two objects for equality.

    Test two objects for equality. The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Definition Classes
    Any
  8. final def asInstanceOf[T0]: T0

    Cast the receiver object to be of type T0.

    Cast the receiver object to be of type T0.

    Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expression List(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the requested type.

    returns

    the receiver object.

    Definition Classes
    Any
    Exceptions thrown
    ClassCastException

    if the receiver object is not an instance of the erasure of type T0.

  9. def clone(): AnyRef

    Create a copy of the receiver object.

    Create a copy of the receiver object.

    The default implementation of the clone method is platform dependent.

    returns

    a copy of the receiver object.

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
    Note

    not specified by SLS as a member of AnyRef

  10. def ensuring(cond: (JavaUniverse.JavaMirror) ⇒ Boolean, msg: ⇒ Any): JavaUniverse.JavaMirror

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to Ensuring[JavaUniverse.JavaMirror] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  11. def ensuring(cond: (JavaUniverse.JavaMirror) ⇒ Boolean): JavaUniverse.JavaMirror

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to Ensuring[JavaUniverse.JavaMirror] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  12. def ensuring(cond: Boolean, msg: ⇒ Any): JavaUniverse.JavaMirror

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to Ensuring[JavaUniverse.JavaMirror] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  13. def ensuring(cond: Boolean): JavaUniverse.JavaMirror

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to Ensuring[JavaUniverse.JavaMirror] performed by method any2Ensuring in scala.Predef.
    Definition Classes
    Ensuring
  14. final def eq(arg0: AnyRef): Boolean

    Tests whether the argument (arg0) is a reference to the receiver object (this).

    Tests whether the argument (arg0) is a reference to the receiver object (this).

    The eq method implements an equivalence relation on non-null instances of AnyRef, and has three additional properties:

    • It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of x.eq(y) consistently returns true or consistently returns false.
    • For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
    • null.eq(null) returns true.

    When overriding the equals or hashCode methods, it is important to ensure that their behavior is consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).

    returns

    true if the argument is a reference to the receiver object; false otherwise.

    Definition Classes
    AnyRef
  15. def equals(arg0: Any): Boolean

    The equality method for reference types.

    The equality method for reference types. Default implementation delegates to eq.

    See also equals in scala.Any.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    Definition Classes
    AnyRef → Any
  16. def finalize(): Unit

    Called by the garbage collector on the receiver object when there are no more references to the object.

    Called by the garbage collector on the receiver object when there are no more references to the object.

    The details of when and if the finalize method is invoked, as well as the interaction between finalize and non-local returns and exceptions, are all platform dependent.

    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
    Note

    not specified by SLS as a member of AnyRef

  17. def formatted(fmtstr: String): String

    Returns string formatted according to given format string.

    Returns string formatted according to given format string. Format strings are as for String.format (@see java.lang.String.format).

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to StringFormat performed by method any2stringfmt in scala.Predef.
    Definition Classes
    StringFormat
    Annotations
    @inline()
  18. final def getClass(): Class[_]

    A representation that corresponds to the dynamic class of the receiver object.

    A representation that corresponds to the dynamic class of the receiver object.

    The nature of the representation is platform dependent.

    returns

    a representation that corresponds to the dynamic class of the receiver object.

    Definition Classes
    AnyRef → Any
    Note

    not specified by SLS as a member of AnyRef

  19. def hashCode(): Int

    The hashCode method for reference types.

    The hashCode method for reference types. See hashCode in scala.Any.

    returns

    the hash code value for this object.

    Definition Classes
    AnyRef → Any
  20. final def isInstanceOf[T0]: Boolean

    Test whether the dynamic type of the receiver object is T0.

    Test whether the dynamic type of the receiver object is T0.

    Note that the result of the test is modulo Scala's erasure semantics. Therefore the expression 1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will return true. In the latter example, because the type argument is erased as part of compilation it is not possible to check whether the contents of the list are of the specified type.

    returns

    true if the receiver object is an instance of erasure of type T0; false otherwise.

    Definition Classes
    Any
  21. final def ne(arg0: AnyRef): Boolean

    Equivalent to !(this eq that).

    Equivalent to !(this eq that).

    returns

    true if the argument is not a reference to the receiver object; false otherwise.

    Definition Classes
    AnyRef
  22. final def notify(): Unit

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Wakes up a single thread that is waiting on the receiver object's monitor.

    Definition Classes
    AnyRef
    Note

    not specified by SLS as a member of AnyRef

  23. final def notifyAll(): Unit

    Wakes up all threads that are waiting on the receiver object's monitor.

    Wakes up all threads that are waiting on the receiver object's monitor.

    Definition Classes
    AnyRef
    Note

    not specified by SLS as a member of AnyRef

  24. final def synchronized[T0](arg0: ⇒ T0): T0

    Definition Classes
    AnyRef
  25. def toString(): String

    Creates a String representation of this object.

    Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.

    returns

    a String representation of the object.

    Definition Classes
    JavaMirror → AnyRef → Any
  26. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  27. final def wait(arg0: Long, arg1: Int): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  28. final def wait(arg0: Long): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  29. def [B](y: B): (JavaUniverse.JavaMirror, B)

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to ArrowAssoc[JavaUniverse.JavaMirror] performed by method any2ArrowAssoc in scala.Predef.
    Definition Classes
    ArrowAssoc

Shadowed Implicit Value Members

  1. val self: Any

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to StringAdd performed by method any2stringadd in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (javaMirror: StringAdd).self
    Definition Classes
    StringAdd
  2. val self: Any

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to StringFormat performed by method any2stringfmt in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (javaMirror: StringFormat).self
    Definition Classes
    StringFormat

Deprecated Value Members

  1. def x: JavaUniverse.JavaMirror

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to ArrowAssoc[JavaUniverse.JavaMirror] performed by method any2ArrowAssoc in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (javaMirror: ArrowAssoc[JavaUniverse.JavaMirror]).x
    Definition Classes
    ArrowAssoc
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use leftOfArrow instead

  2. def x: JavaUniverse.JavaMirror

    Implicit information
    This member is added by an implicit conversion from JavaUniverse.JavaMirror to Ensuring[JavaUniverse.JavaMirror] performed by method any2Ensuring in scala.Predef.
    Shadowing
    This implicitly inherited member is ambiguous. One or more implicitly inherited members have similar signatures, so calling this member may produce an ambiguous implicit conversion compiler error.
    To access this member you can use a type ascription:
    (javaMirror: Ensuring[JavaUniverse.JavaMirror]).x
    Definition Classes
    Ensuring
    Annotations
    @deprecated
    Deprecated

    (Since version 2.10.0) Use resultOfEnsuring instead

Inherited from JavaUniverse.RuntimeMirror

Inherited from JavaUniverse.ReflectiveMirror

Inherited from api.Mirror[JavaMirrors.this.type]

Inherited from AnyRef

Inherited from Any

Inherited by implicit conversion any2stringadd from JavaUniverse.JavaMirror to StringAdd

Inherited by implicit conversion any2stringfmt from JavaUniverse.JavaMirror to StringFormat

Inherited by implicit conversion any2ArrowAssoc from JavaUniverse.JavaMirror to ArrowAssoc[JavaUniverse.JavaMirror]

Inherited by implicit conversion any2Ensuring from JavaUniverse.JavaMirror to Ensuring[JavaUniverse.JavaMirror]

Mirror

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