scala.Predef

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Type Members

class <%< [-From, +To] extends (From) ⇒ To

attributes: sealed abstract
class <:< [-From, +To] extends (From) ⇒ To

attributes: sealed abstract
class =:= [From, To] extends (From) ⇒ To

attributes: sealed abstract
class ArrowAssoc [A] extends AnyRef

attributes: final
type Class [T] = Class[T]
type ClassManifest [T] = ClassManifest[T]
class DummyImplicit extends AnyRef

A type for which there is always an implicit value.
class Ensuring [A] extends AnyRef

attributes: final
type Function [-A, +B] = (A) ⇒ B
type Manifest [T] = Manifest[T]
type Map [A, +B] = Map[A, B]
type Pair [+A, +B] = (A, B)
type Set [A] = Set[A]
type String = String
type Triple [+A, +B, +C] = (A, B, C)

Value Members

def != (arg0: AnyRef) : Boolean

attributes: final
definition classes: AnyRef
def != (arg0: Any) : Boolean

o != arg0 is the same as !(o == (arg0)).

o != arg0 is the same as !(o == (arg0)).
arg0
the object to compare against this object for dis-equality.
returns
false if the receiver object is equivalent to the argument; true otherwise.
attributes: final
definition classes: Any
def ## () : Int

attributes: final
definition classes: AnyRef → Any
def $asInstanceOf [T0] () : T0

attributes: final
definition classes: AnyRef
def $isInstanceOf [T0] () : Boolean

attributes: final
definition classes: AnyRef
object <%< extends AnyRef
object =:= extends AnyRef
def == (arg0: AnyRef) : Boolean

o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).

o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).
arg0
the object to compare against this object for equality.
returns
true if the receiver object is equivalent to the argument; false otherwise.
attributes: final
definition classes: AnyRef
def == (arg0: Any) : Boolean

o == arg0 is the same as o.equals(arg0).

o == arg0 is the same as o.equals(arg0).
arg0
the object to compare against this object for equality.
returns
true if the receiver object is equivalent to the argument; false otherwise.
attributes: final
definition classes: Any
object DummyImplicit extends AnyRef
val Map : collection.immutable.Map.type
object Pair extends AnyRef
val Set : collection.immutable.Set.type
object Triple extends AnyRef
implicit def any2ArrowAssoc [A] (x: A) : ArrowAssoc[A]

attributes: implicit
implicit def any2Ensuring [A] (x: A) : Ensuring[A]

attributes: implicit
implicit def any2stringadd (x: Any) : StringAdd

attributes: implicit
implicit def arrayToCharSequence (xs: Array[Char]) : CharSequence

attributes: implicit
def asInstanceOf [T0] : T0

This method is used to cast the receiver object to be of type T0.

This method is used to 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 expression1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expressionList(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 typed.
returns
the receiver object.
attributes: final
definition classes: Any
def assert (assertion: Boolean, message: ⇒ Any) : Unit

Tests an expression, throwing an AssertionError if false.
Tests an expression, throwing an AssertionError if false. Calls to this method will not be generated if -Xelide-below is at least ASSERTION.
1. elidable
def assert (assertion: Boolean) : Unit

Tests an expression, throwing an AssertionError if false.
Tests an expression, throwing an AssertionError if false. Calls to this method will not be generated if -Xelide-below is at least ASSERTION.
1. elidable
def assume (assumption: Boolean, message: ⇒ Any) : Unit

Tests an expression, throwing an AssertionError if false.
Tests an expression, throwing an AssertionError if false. This method differs from assert only in the intent expressed: assert contains a predicate which needs to be proven, while assume contains an axiom for a static checker. Calls to this method will not be generated if -Xelide-below is at least ASSERTION.
1. elidable
def assume (assumption: Boolean) : Unit

Tests an expression, throwing an AssertionError if false.
Tests an expression, throwing an AssertionError if false. This method differs from assert only in the intent expressed: assert contains a predicate which needs to be proven, while assume contains an axiom for a static checker. Calls to this method will not be generated if -Xelide-below is at least ASSERTION.
1. elidable
implicit def augmentString (x: String) : StringOps

attributes: implicit
implicit def boolean2Boolean (x: Boolean) : Boolean

attributes: implicit
implicit def booleanArrayOps (xs: Array[Boolean]) : ArrayOps[Boolean]

attributes: implicit
implicit def booleanWrapper (x: Boolean) : RichBoolean

attributes: implicit
implicit def byte2Byte (x: Byte) : Byte

attributes: implicit
implicit def byte2double (x: Byte) : Double

attributes: implicit
implicit def byte2float (x: Byte) : Float

attributes: implicit
implicit def byte2int (x: Byte) : Int

attributes: implicit
implicit def byte2long (x: Byte) : Long

attributes: implicit
implicit def byte2short (x: Byte) : Short

attributes: implicit
implicit def byteArrayOps (xs: Array[Byte]) : ArrayOps[Byte]

attributes: implicit
implicit def byteWrapper (x: Byte) : RichByte

attributes: implicit
implicit def char2Character (x: Char) : Character

attributes: implicit
implicit def char2double (x: Char) : Double

attributes: implicit
implicit def char2float (x: Char) : Float

attributes: implicit
implicit def char2int (x: Char) : Int

attributes: implicit
implicit def char2long (x: Char) : Long

attributes: implicit
implicit def charArrayOps (xs: Array[Char]) : ArrayOps[Char]

attributes: implicit
implicit def charWrapper (c: Char) : RichChar

attributes: implicit
def classManifest [T] (implicit m: ClassManifest[T]) : ClassManifest[T]
def classOf [T] : Class[T]

Return the runtime representation of a class type.

Return the runtime representation of a class type. This is a stub method. The actual implementation is filled in by the compiler.
def clone () : AnyRef

This method creates and returns a copy of the receiver object.

This method creates and returns 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
implicit def conforms [A] : <:<[A, A]

attributes: implicit
def currentThread : Thread
implicit def double2Double (x: Double) : Double

attributes: implicit
implicit def doubleArrayOps (xs: Array[Double]) : ArrayOps[Double]

attributes: implicit
implicit def doubleWrapper (x: Double) : RichDouble

attributes: implicit
def eq (arg0: AnyRef) : Boolean

This method is used to test whether the argument (arg0) is a reference to the receiver object (this).

This method is used to test whether the argument (arg0) is a reference to the receiver object (this).
The eq method implements an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence relation] on non-null instances of AnyRef: * It is reflexive: for any non-null instance x of type AnyRef, x.eq(x) returns true. * It is symmetric: for any non-null instances x and y of type AnyRef, x.eq(y) returns true if and only if y.eq(x) returns true. * It is transitive: for any non-null instances x, y, and z of type AnyRef if x.eq(y) returns true and y.eq(z) returns true, then x.eq(z) returns true.
Additionally, the eq method has three other 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).
arg0
the object to compare against this object for reference equality.
returns
true if the argument is a reference to the receiver object; false otherwise.
attributes: final
definition classes: AnyRef
def equals (arg0: Any) : Boolean

This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.
The default implementations of this method is an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence relation]: * It is reflexive: for any instance x of type Any, x.equals(x) should return true. * It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true. * It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same scala.Int (o1.hashCode.equals(o2.hashCode)).
arg0
the object to compare against this object for equality.
returns
true if the receiver object is equivalent to the argument; false otherwise.
definition classes: AnyRef → Any
def error (message: String) : Nothing
implicit def exceptionWrapper (exc: Throwable) : RichException

attributes: implicit
def exit (status: Int) : Nothing
def exit () : Nothing
implicit def fallbackStringCanBuildFrom [T] : CanBuildFrom[String, T, IndexedSeq[T]]

attributes: implicit
definition classes: LowPriorityImplicits
def finalize () : Unit

This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.

This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.
The details of when and if the finalize method are invoked, as well as the interaction between finalizeand non-local returns and exceptions, are all platform dependent.
attributes: protected[lang]
definition classes: AnyRef
implicit def float2Float (x: Float) : Float

attributes: implicit
implicit def float2double (x: Float) : Double

attributes: implicit
implicit def floatArrayOps (xs: Array[Float]) : ArrayOps[Float]

attributes: implicit
implicit def floatWrapper (x: Float) : RichFloat

attributes: implicit
def format (text: String, xs: Any*) : String
implicit def genericArrayOps [T] (xs: Array[T]) : ArrayOps[T]

attributes: implicit
implicit def genericWrapArray [T] (xs: Array[T]) : WrappedArray[T]

attributes: implicit
definition classes: LowPriorityImplicits
def getClass () : java.lang.Class[_ <: java.lang.Object]

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

Returns 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.
attributes: final
definition classes: AnyRef
def hashCode () : Int

Returns a hash code value for the object.

Returns a hash code value for the object.
The default hashing algorithm is platform dependent.
Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.
returns
the hash code value for the object.
definition classes: AnyRef → Any
def identity [A] (x: A) : A
def implicitly [T] (implicit e: T) : T
implicit def int2Integer (x: Int) : Integer

attributes: implicit
implicit def int2double (x: Int) : Double

attributes: implicit
implicit def int2float (x: Int) : Float

attributes: implicit
implicit def int2long (x: Int) : Long

attributes: implicit
implicit def intArrayOps (xs: Array[Int]) : ArrayOps[Int]

attributes: implicit
implicit def intWrapper (x: Int) : RichInt

attributes: implicit
def isInstanceOf [T0] : Boolean

This method is used to test whether the dynamic type of the receiver object is T0.

This method is used to test whether the dynamic type of the receiver object is T0.
Note that the test result of the test is modulo Scala's erasure semantics. Therefore the expression1.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 requested typed.
returns
true if the receiver object is an instance of erasure of type T0; false otherwise.
attributes: final
definition classes: Any
def locally [T] (x: T) : T
implicit def long2Long (x: Long) : Long

attributes: implicit
implicit def long2double (x: Long) : Double

attributes: implicit
implicit def long2float (x: Long) : Float

attributes: implicit
implicit def longArrayOps (xs: Array[Long]) : ArrayOps[Long]

attributes: implicit
implicit def longWrapper (x: Long) : RichLong

attributes: implicit
def manifest [T] (implicit m: Manifest[T]) : Manifest[T]
def ne (arg0: AnyRef) : Boolean

o.ne(arg0) is the same as !(o.eq(arg0)).

o.ne(arg0) is the same as !(o.eq(arg0)).
arg0
the object to compare against this object for reference dis-equality.
returns
false if the argument is not a reference to the receiver object; true otherwise.
attributes: final
definition classes: AnyRef
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.
attributes: final
definition classes: AnyRef
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.
attributes: final
definition classes: AnyRef
def print (x: Any) : Unit
def printf (text: String, xs: Any*) : Unit
def println (x: Any) : Unit
def println () : Unit
def readBoolean () : Boolean
def readByte () : Byte
def readChar () : Char
def readDouble () : Double
def readFloat () : Float
def readInt () : Int
def readLine (text: String, args: Any*) : String
def readLine () : String
def readLong () : Long
def readShort () : Short
def readf (format: String) : List[Any]
def readf1 (format: String) : Any
def readf2 (format: String) : (Any, Any)
def readf3 (format: String) : (Any, Any, Any)
implicit def refArrayOps [T <: AnyRef] (xs: Array[T]) : ArrayOps[T]

attributes: implicit
def require (requirement: Boolean, message: ⇒ Any) : Unit

Tests an expression, throwing an IllegalArgumentException if false.

Tests an expression, throwing an IllegalArgumentException if false. This method is similar to assert, but blames the caller of the method for violating the condition.
def require (requirement: Boolean) : Unit

Tests an expression, throwing an IllegalArgumentException if false.

Tests an expression, throwing an IllegalArgumentException if false. This method is similar to assert, but blames the caller of the method for violating the condition.
implicit def seqToCharSequence (xs: IndexedSeq[Char]) : CharSequence

attributes: implicit
implicit def short2Short (x: Short) : Short

attributes: implicit
implicit def short2double (x: Short) : Double

attributes: implicit
implicit def short2float (x: Short) : Float

attributes: implicit
implicit def short2int (x: Short) : Int

attributes: implicit
implicit def short2long (x: Short) : Long

attributes: implicit
implicit def shortArrayOps (xs: Array[Short]) : ArrayOps[Short]

attributes: implicit
implicit def shortWrapper (x: Short) : RichShort

attributes: implicit
implicit def stringCanBuildFrom : CanBuildFrom[String, Char, String]

attributes: implicit
def synchronized [T0] (arg0: T0) : T0

attributes: final
definition classes: AnyRef
def toString () : String

Returns a string representation of the object.

Returns a string representation of the object.
The default representation is platform dependent.
returns
a string representation of the object.
definition classes: AnyRef → Any
implicit def unaugmentString (x: StringOps) : String

attributes: implicit
implicit def unitArrayOps (xs: Array[Unit]) : ArrayOps[Unit]

attributes: implicit
implicit def unwrapString (ws: WrappedString) : String

attributes: implicit
definition classes: LowPriorityImplicits
def wait () : Unit

attributes: final
definition classes: AnyRef
def wait (arg0: Long, arg1: Int) : Unit

attributes: final
definition classes: AnyRef
def wait (arg0: Long) : Unit

attributes: final
definition classes: AnyRef
def wrapArray (xs: Array[Unit]) : WrappedArray[Unit]

definition classes: LowPriorityImplicits
def wrapArray (xs: Array[Boolean]) : WrappedArray[Boolean]

definition classes: LowPriorityImplicits
def wrapArray (xs: Array[Short]) : WrappedArray[Short]

definition classes: LowPriorityImplicits
def wrapArray (xs: Array[Byte]) : WrappedArray[Byte]

definition classes: LowPriorityImplicits
def wrapArray (xs: Array[Char]) : WrappedArray[Char]

definition classes: LowPriorityImplicits
def wrapArray (xs: Array[Float]) : WrappedArray[Float]

definition classes: LowPriorityImplicits
def wrapArray (xs: Array[Long]) : WrappedArray[Long]

definition classes: LowPriorityImplicits
def wrapArray (xs: Array[Double]) : WrappedArray[Double]

definition classes: LowPriorityImplicits
def wrapArray (xs: Array[Int]) : WrappedArray[Int]

definition classes: LowPriorityImplicits
def wrapArray [T <: AnyRef] (xs: Array[T]) : WrappedArray[T]

Caution - not yet.

Caution - not yet. pos/t1459, pos/t2569, jvm/t1342 all fail without the next line.
definition classes: LowPriorityImplicits
implicit def wrapBooleanArray (xs: Array[Boolean]) : WrappedArray[Boolean]

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapByteArray (xs: Array[Byte]) : WrappedArray[Byte]

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapCharArray (xs: Array[Char]) : WrappedArray[Char]

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapDoubleArray (xs: Array[Double]) : WrappedArray[Double]

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapFloatArray (xs: Array[Float]) : WrappedArray[Float]

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapIntArray (xs: Array[Int]) : WrappedArray[Int]

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapLongArray (xs: Array[Long]) : WrappedArray[Long]

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapRefArray [T <: AnyRef] (xs: Array[T]) : WrappedArray[T]

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapShortArray (xs: Array[Short]) : WrappedArray[Short]

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapString (s: String) : WrappedString

attributes: implicit
definition classes: LowPriorityImplicits
implicit def wrapUnitArray (xs: Array[Unit]) : WrappedArray[Unit]

attributes: implicit
definition classes: LowPriorityImplicits

Predef

object Predef extends LowPriorityImplicits

Type Members

type Class [T] = Class[T]

type ClassManifest [T] = ClassManifest[T]

type Function [-A, +B] = (A) ⇒ B

type Manifest [T] = Manifest[T]

type Map [A, +B] = Map[A, B]

type Pair [+A, +B] = (A, B)

type Set [A] = Set[A]

type String = String

type Triple [+A, +B, +C] = (A, B, C)

Value Members

def != (arg0: AnyRef) : Boolean

def != (arg0: Any) : Boolean

def ## () : Int

def $asInstanceOf [T0] () : T0

def $isInstanceOf [T0] () : Boolean

def == (arg0: AnyRef) : Boolean

def == (arg0: Any) : Boolean

val Map : collection.immutable.Map.type

val Set : collection.immutable.Set.type

implicit def any2ArrowAssoc [A] (x: A) : ArrowAssoc[A]

implicit def any2Ensuring [A] (x: A) : Ensuring[A]

implicit def any2stringadd (x: Any) : StringAdd

implicit def arrayToCharSequence (xs: Array[Char]) : CharSequence

def asInstanceOf [T0] : T0

def assert (assertion: Boolean, message: ⇒ Any) : Unit

def assert (assertion: Boolean) : Unit

def assume (assumption: Boolean, message: ⇒ Any) : Unit

def assume (assumption: Boolean) : Unit

implicit def augmentString (x: String) : StringOps

implicit def boolean2Boolean (x: Boolean) : Boolean

implicit def booleanArrayOps (xs: Array[Boolean]) : ArrayOps[Boolean]

implicit def booleanWrapper (x: Boolean) : RichBoolean

implicit def byte2Byte (x: Byte) : Byte

implicit def byte2double (x: Byte) : Double

implicit def byte2float (x: Byte) : Float

implicit def byte2int (x: Byte) : Int

implicit def byte2long (x: Byte) : Long

implicit def byte2short (x: Byte) : Short

implicit def byteArrayOps (xs: Array[Byte]) : ArrayOps[Byte]

implicit def byteWrapper (x: Byte) : RichByte

implicit def char2Character (x: Char) : Character

implicit def char2double (x: Char) : Double

implicit def char2float (x: Char) : Float

implicit def char2int (x: Char) : Int

implicit def char2long (x: Char) : Long

implicit def charArrayOps (xs: Array[Char]) : ArrayOps[Char]

implicit def charWrapper (c: Char) : RichChar

def classManifest [T] (implicit m: ClassManifest[T]) : ClassManifest[T]

def classOf [T] : Class[T]

def clone () : AnyRef

implicit def conforms [A] : <:<[A, A]

def currentThread : Thread

implicit def double2Double (x: Double) : Double

implicit def doubleArrayOps (xs: Array[Double]) : ArrayOps[Double]

implicit def doubleWrapper (x: Double) : RichDouble

def eq (arg0: AnyRef) : Boolean

def equals (arg0: Any) : Boolean

def error (message: String) : Nothing

implicit def exceptionWrapper (exc: Throwable) : RichException

def exit (status: Int) : Nothing

def exit () : Nothing

implicit def fallbackStringCanBuildFrom [T] : CanBuildFrom[String, T, IndexedSeq[T]]

def finalize () : Unit

implicit def float2Float (x: Float) : Float

implicit def float2double (x: Float) : Double

implicit def floatArrayOps (xs: Array[Float]) : ArrayOps[Float]

implicit def floatWrapper (x: Float) : RichFloat

def format (text: String, xs: Any*) : String

implicit def genericArrayOps [T] (xs: Array[T]) : ArrayOps[T]

implicit def genericWrapArray [T] (xs: Array[T]) : WrappedArray[T]

def getClass () : java.lang.Class[_ <: java.lang.Object]

def hashCode () : Int

def identity [A] (x: A) : A

def implicitly [T] (implicit e: T) : T

implicit def int2Integer (x: Int) : Integer

implicit def int2double (x: Int) : Double

implicit def int2float (x: Int) : Float