Native Booleans.

true and false are the only instances.

Boolean are manipulated trough three special operators: and, or, not.

Booleans are mainly used by conditional statement and loops.

Introduced properties

fun to_i: Int

core :: Bool :: to_i

1 if true and 0 if false

Redefined properties

redef intern fun !=(b: nullable Object): Bool

core $ Bool :: !=

Have self and other different values?
redef intern fun ==(b: nullable Object): Bool

core $ Bool :: ==

Have self and other the same value?
redef type SELF: Bool

core $ Bool :: SELF

Type of this instance, automatically specialized in every class
redef fun accept_json_serializer(v: JsonSerializer)

json :: serialization_write $ Bool :: accept_json_serializer

Refinable service to customize the serialization of this class to JSON
redef fun accept_msgpack_serializer(v: MsgPackSerializer)

msgpack :: serialization_write $ Bool :: accept_msgpack_serializer

Hook to customize the serialization of this class to MessagePack
redef fun add_to_bundle(bundle: NativeBundle, key: JavaString)

android :: bundle $ Bool :: add_to_bundle

Called by []= to dynamically choose the appropriate method according
redef fun hash: Int

core $ Bool :: hash

The hash code of the object.
redef intern fun object_id: Int

core $ Bool :: object_id

An internal hash code for the object based on its identity.
redef intern fun output

core $ Bool :: output

Display self on stdout (debug only).
redef fun to_jvalue(env: JniEnv): JValue

jvm :: jvm $ Bool :: to_jvalue

redef fun to_s: String

core :: abstract_text $ Bool :: to_s

All properties

fun !=(other: nullable Object): Bool

core :: Object :: !=

Have self and other different values?
fun ==(other: nullable Object): Bool

core :: Object :: ==

Have self and other the same value?
type CLASS: Class[SELF]

core :: Object :: CLASS

The type of the class of self.
type SELF: Object

core :: Object :: SELF

Type of this instance, automatically specialized in every class
protected fun accept_json_serializer(v: JsonSerializer)

serialization :: Serializable :: accept_json_serializer

Refinable service to customize the serialization of this class to JSON
protected fun accept_msgpack_attribute_counter(v: AttributeCounter)

serialization :: Serializable :: accept_msgpack_attribute_counter

Hook to customize the behavior of the AttributeCounter
protected fun accept_msgpack_serializer(v: MsgPackSerializer)

serialization :: Serializable :: accept_msgpack_serializer

Hook to customize the serialization of this class to MessagePack
protected fun add_to_bundle(bundle: NativeBundle, key: JavaString)

serialization :: Serializable :: add_to_bundle

Called by []= to dynamically choose the appropriate method according
protected fun class_factory(name: String): CLASS

core :: Object :: class_factory

Implementation used by get_class to create the specific class.
fun class_name: String

core :: Object :: class_name

The class name of the object.
fun core_serialize_to(serializer: Serializer)

serialization :: Serializable :: core_serialize_to

Actual serialization of self to serializer
init from_deserializer(deserializer: Deserializer)

serialization :: Serializable :: from_deserializer

Create an instance of this class from the deserializer
fun get_class: CLASS

core :: Object :: get_class

The meta-object representing the dynamic type of self.
fun hash: Int

core :: Object :: hash

The hash code of the object.
init init

core :: Object :: init

fun inspect: String

core :: Object :: inspect

Developer readable representation of self.
protected fun inspect_head: String

core :: Object :: inspect_head

Return "CLASSNAME:#OBJECTID".
intern fun is_same_instance(other: nullable Object): Bool

core :: Object :: is_same_instance

Return true if self and other are the same instance (i.e. same identity).
fun is_same_serialized(other: nullable Object): Bool

core :: Object :: is_same_serialized

Is self the same as other in a serialization context?
intern fun is_same_type(other: Object): Bool

core :: Object :: is_same_type

Return true if self and other have the same dynamic type.
protected fun msgpack_extra_array_items: Int

serialization :: Serializable :: msgpack_extra_array_items

Hook to request a larger than usual metadata array
intern fun object_id: Int

core :: Object :: object_id

An internal hash code for the object based on its identity.
fun output

core :: Object :: output

Display self on stdout (debug only).
intern fun output_class_name

core :: Object :: output_class_name

Display class name on stdout (debug only).
fun serialization_hash: Int

core :: Object :: serialization_hash

Hash value use for serialization
fun serialize_msgpack(plain: nullable Bool): Bytes

serialization :: Serializable :: serialize_msgpack

Serialize self to MessagePack bytes
fun serialize_to(serializer: Serializer)

serialization :: Serializable :: serialize_to

Serialize self to serializer
fun serialize_to_json(plain: nullable Bool, pretty: nullable Bool): String

serialization :: Serializable :: serialize_to_json

Serialize self to JSON
intern fun sys: Sys

core :: Object :: sys

Return the global sys object, the only instance of the Sys class.
fun to_i: Int

core :: Bool :: to_i

1 if true and 0 if false
fun to_json: String

serialization :: Serializable :: to_json

Serialize self to plain JSON
abstract fun to_jvalue(env: JniEnv): JValue

core :: Object :: to_jvalue

fun to_pretty_json: String

serialization :: Serializable :: to_pretty_json

Serialize self to plain pretty JSON
fun to_s: String

core :: Object :: to_s

User readable representation of self.
package_diagram core::Bool Bool serialization::DirectSerializable DirectSerializable core::Bool->serialization::DirectSerializable serialization::Serializable Serializable serialization::DirectSerializable->serialization::Serializable ...serialization::Serializable ... ...serialization::Serializable->serialization::Serializable

Ancestors

interface Object

core :: Object

The root of the class hierarchy.
interface Serializable

serialization :: Serializable

Instances of this class can be passed to Serializer::serialize

Parents

interface DirectSerializable

serialization :: DirectSerializable

Instances of this class are not delayed and instead serialized immediately

Class definitions

core $ Bool
# Native Booleans.
# `true` and `false` are the only instances.
#
# Boolean are manipulated trough three special operators:
# `and`, `or`, `not`.
#
# Booleans are mainly used by conditional statement and loops.
universal Bool
	redef fun object_id is intern
	redef fun ==(b) is intern
	redef fun !=(b) is intern
	redef fun output is intern
	redef fun hash do return to_i

	# 1 if true and 0 if false
	fun to_i: Int
	do
		if self then
			return 1
		else
			return 0
		end
	end
end
lib/core/kernel.nit:492,1--515,3

core :: abstract_text $ Bool
redef class Bool
	# ~~~
	# assert true.to_s         == "true"
	# assert false.to_s        == "false"
	# ~~~
	redef fun to_s
	do
		if self then
			return once "true"
		else
			return once "false"
		end
	end
end
lib/core/text/abstract_text.nit:1915,1--1928,3

jvm :: jvm $ Bool
redef class Bool
	redef fun to_jvalue(env): JValue `{
		jvalue value;
		value.z = self;
		return value;
	`}
end
lib/jvm/jvm.nit:525,1--531,3

serialization :: serialization_core $ Bool
redef class Bool super DirectSerializable end
lib/serialization/serialization_core.nit:258,1--45

json :: serialization_write $ Bool
redef class Bool
	redef fun accept_json_serializer(v) do v.stream.write to_s
end
lib/json/serialization_write.nit:272,1--274,3

serialization :: inspect $ Bool
redef class Bool
	redef fun accept_inspect_serializer(v) do v.stream.write to_s
end
lib/serialization/inspect.nit:199,1--201,3

msgpack :: serialization_write $ Bool
redef class Bool
	redef fun accept_msgpack_serializer(v) do v.stream.write_msgpack_bool self
end
lib/msgpack/serialization_write.nit:256,1--258,3

android :: bundle $ Bool
redef class Bool
	redef fun add_to_bundle(bundle, key)
	do
		bundle.put_boolean(key, self)
	end
end
lib/android/bundle/bundle.nit:707,1--712,3