scala.runtime.LazyRef.scala Maven / Gradle / Ivy
/*
* Scala (https://www.scala-lang.org)
*
* Copyright EPFL and Lightbend, Inc.
*
* Licensed under Apache License 2.0
* (http://www.apache.org/licenses/LICENSE-2.0).
*
* See the NOTICE file distributed with this work for
* additional information regarding copyright ownership.
*/
package scala.runtime
/** Classes used as holders for lazy vals defined in methods. */
@SerialVersionUID(1l)
class LazyRef[T] extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
private[this] var _value: T = _
def value: T = _value
def initialize(value: T): T = {
_value = value
_initialized = true
value
}
override def toString = s"LazyRef ${if (_initialized) s"of: ${_value}" else "thunk"}"
}
@SerialVersionUID(1l)
class LazyBoolean extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
private[this] var _value: Boolean = _
def value: Boolean = _value
def initialize(value: Boolean): Boolean = {
_value = value
_initialized = true
value
}
override def toString = s"LazyBoolean ${if (_initialized) s"of: ${_value}" else "thunk"}"
}
@SerialVersionUID(1l)
class LazyByte extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
private[this] var _value: Byte = _
def value: Byte = _value
def initialize(value: Byte): Byte = {
_value = value
_initialized = true
value
}
override def toString = s"LazyByte ${if (_initialized) s"of: ${_value}" else "thunk"}"
}
@SerialVersionUID(1l)
class LazyChar extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
private[this] var _value: Char = _
def value: Char = _value
def initialize(value: Char): Char = {
_value = value
_initialized = true
value
}
override def toString = s"LazyChar ${if (_initialized) s"of: ${_value}" else "thunk"}"
}
@SerialVersionUID(1l)
class LazyShort extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
private[this] var _value: Short = _
def value: Short = _value
def initialize(value: Short): Short = {
_value = value
_initialized = true
value
}
override def toString = s"LazyShort ${if (_initialized) s"of: ${_value}" else "thunk"}"
}
@SerialVersionUID(1l)
class LazyInt extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
private[this] var _value: Int = _
def value: Int = _value
def initialize(value: Int): Int = {
_value = value
_initialized = true
value
}
override def toString = s"LazyInt ${if (_initialized) s"of: ${_value}" else "thunk"}"
}
@SerialVersionUID(1l)
class LazyLong extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
private[this] var _value: Long = _
def value: Long = _value
def initialize(value: Long): Long = {
_value = value
_initialized = true
value
}
override def toString = s"LazyLong ${if (_initialized) s"of: ${_value}" else "thunk"}"
}
@SerialVersionUID(1l)
class LazyFloat extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
private[this] var _value: Float = _
def value: Float = _value
def initialize(value: Float): Float = {
_value = value
_initialized = true
value
}
override def toString = s"LazyFloat ${if (_initialized) s"of: ${_value}" else "thunk"}"
}
@SerialVersionUID(1l)
class LazyDouble extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
private[this] var _value: Double = _
def value: Double = _value
def initialize(value: Double): Double = {
_value = value
_initialized = true
value
}
override def toString = s"LazyDouble ${if (_initialized) s"of: ${_value}" else "thunk"}"
}
@SerialVersionUID(1l)
class LazyUnit extends Serializable {
@volatile private[this] var _initialized: Boolean = _
def initialized = _initialized
def initialize(): Unit = _initialized = true
override def toString = s"LazyUnit${if (_initialized) "" else " thunk"}"
}