ScalaRunTime

object ScalaRunTime

The object ScalaRunTime provides support methods required by the scala runtime. All these methods should be considered outside the API and subject to change or removal without notice.

Source: ScalaRunTime.scala

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final def !=(arg0: Any): Boolean
Test two objects for inequality.
Test two objects for inequality.
returns
true if !(this == that), false otherwise.

Definition Classes
AnyRef → Any
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
final def ==(arg0: Any): Boolean
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
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
AnyRef → Any
def _hashCode(x: Product): Int
def _toString(x: Product): String
def anyValClass[T <: AnyVal](value: T)(implicit arg0: ClassTag[T]): Class[T]
Return the class object representing an unboxed value type, e.g., classOf[int], not classOf[java.lang.Integer].
Return the class object representing an unboxed value type, e.g., classOf[int], not classOf[java.lang.Integer]. The compiler rewrites expressions like 5.getClass to come here.
def arrayClass(clazz: Class[_]): Class[_]
Return the class object representing an array with element class clazz.
def array_apply(xs: AnyRef, idx: Int): Any
Retrieve generic array element
def array_clone(xs: AnyRef): AnyRef
def array_length(xs: AnyRef): Int
Get generic array length
def array_update(xs: AnyRef, idx: Int, value: Any): Unit
update generic array element
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.
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[lang]
Definition Classes
AnyRef
Annotations
@throws( ... ) @native() @HotSpotIntrinsicCandidate()
Note
not specified by SLS as a member of AnyRef
def drop[Repr](coll: Repr, num: Int)(implicit traversable: IsTraversableLike[Repr]): Repr
def ensureAccessible(m: Method): Method
final def eq(arg0: AnyRef): Boolean
Tests whether the argument (that) is a reference to the receiver object (this).
Tests whether the argument (that) 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
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
final def getClass(): Class[_]
Returns the runtime class representation of the object.
Returns the runtime class representation of the object.
returns
a class object corresponding to the runtime type of the receiver.

Definition Classes
AnyRef → Any
Annotations
@native() @HotSpotIntrinsicCandidate()
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
Annotations
@native() @HotSpotIntrinsicCandidate()
def isArray(x: Any, atLevel: Int = 1): Boolean
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
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
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
Annotations
@native() @HotSpotIntrinsicCandidate()
Note
not specified by SLS as a member of AnyRef
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
Annotations
@native() @HotSpotIntrinsicCandidate()
Note
not specified by SLS as a member of AnyRef
def replStringOf(arg: Any, maxElements: Int): String
stringOf formatted for use in a repl result.
def stringOf(arg: Any, maxElements: Int): String
def stringOf(arg: Any): String
Given any Scala value, convert it to a String.
Given any Scala value, convert it to a String.
The primary motivation for this method is to provide a means for correctly obtaining a String representation of a value, while avoiding the pitfalls of naively calling toString on said value. In particular, it addresses the fact that (a) toString cannot be called on null and (b) depending on the apparent type of an array, toString may or may not print it in a human-readable form.
arg
the value to stringify
returns
a string representation of arg.
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toArray[T](xs: collection.Seq[T]): Array[AnyRef]
def toObjectArray(src: AnyRef): Array[AnyRef]
Convert an array to an object array.
Convert an array to an object array. Needed to deal with vararg arguments of primitive types that are passed to a generic Java vararg parameter T ...
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
AnyRef → Any
def typedProductIterator[T](x: Product): Iterator[T]
A helper for case classes.
final def wait(arg0: Long, arg1: Int): Unit

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

Definition Classes
AnyRef
Annotations
@throws( ... ) @native()
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Deprecated Value Members

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[lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] ) @Deprecated
Deprecated
Note
not specified by SLS as a member of AnyRef
def hash(x: Any): Int
Old implementation of ##.
Old implementation of ##.

Annotations
@deprecated
Deprecated
(Since version 2.12.0) Use scala.runtime.Statics.anyHash instead.

Packages

Package structure

Automatic imports

ScalaRunTime

object ScalaRunTime

Value Members

Deprecated Value Members

Inherited from AnyRef

Inherited from Any

Ungrouped

Packages

Package structure

Automatic imports

ScalaRunTime 

object ScalaRunTime

Value Members

Deprecated Value Members

Inherited from AnyRef

Inherited from Any

Ungrouped

ScalaRunTime