Class
abstract class Class
Defined in:
class.crprimitives.cr
Class Method Summary
- .==(other : Class)
- .===(other)
- .cast(other) : self
Casts other to this class.
- .clone
- .dup
- .hash
- .inspect(io)
- .name : String
Returns the name of this class.
- .nilable?
Returns
trueif this class isNil- - .to_s(io)
- .|(other : U.class) forall U
Returns the union type of
selfand other.
Instance Method Summary
- #==(other : Class)
- #===(other)
- #cast(other) : self
Casts other to this class.
- #clone
- #dup
- #hash
- #inspect(io)
- #name : String
Returns the name of this class.
- #nilable?
Returns
trueif this class isNil- - #to_s(io)
- #|(other : U.class) forall U
Returns the union type of
selfand other.
Instance methods inherited from struct Value
==(other) ==, dup dup Instance methods inherited from class Object
!=(other) !=, !~(other) !~, ==(other) ==, ===(other : JSON::Any)===(other : YAML::Any)
===(other) ===, =~(other) =~, class class, dup dup, hash hash, inspect(io : IO)
inspect inspect, itself itself, not_nil! not_nil!, pretty_inspect(width = 79, newline = "\n", indent = 0) : String pretty_inspect, pretty_print(pp : PrettyPrint) : Nil pretty_print, tap(&block) tap, to_json(io : IO)
to_json to_json, to_pretty_json(indent : String = " ")
to_pretty_json(io : IO, indent : String = " ") to_pretty_json, to_s
to_s(io : IO) to_s, to_yaml(io : IO)
to_yaml to_yaml, try(&block) try
Class methods inherited from class Object
from_json(string_or_io, root : String) : selffrom_json(string_or_io) : self from_json, from_yaml(string_or_io) : self from_yaml
Class Method Detail
def self.===(other)Source
def self.cast(other) : selfSource
Casts other to this class.
This is the same as using as, but allows the class to be passed around as an argument. See the documentation on as for more information.
klass = Int32 number = [99, "str"][0] typeof(number) # => (String | Int32) typeof(klass.cast(number)) # => Int32
def self.cloneSource
def self.dupSource
def self.hashSource
def self.inspect(io)Source
def self.nilable?Source
Returns true if this class is Nil-
Int32.nilable? # => false Nil.nilable? # => true
def self.to_s(io)Source
def self.|(other : U.class) forall USource
Returns the union type of self and other.
Int32 | Char # => (Int32 | Char)
Instance Method Detail
def ===(other)Source
def cast(other) : selfSource
Casts other to this class.
This is the same as using as, but allows the class to be passed around as an argument. See the documentation on as for more information.
klass = Int32 number = [99, "str"][0] typeof(number) # => (String | Int32) typeof(klass.cast(number)) # => Int32
def cloneSource
def dupSource
def hashSource
def inspect(io)Source
def nilable?Source
Returns true if this class is Nil-
Int32.nilable? # => false Nil.nilable? # => true
def to_s(io)Source
def |(other : U.class) forall USource
Returns the union type of self and other.
Int32 | Char # => (Int32 | Char)
© 2012–2017 Manas Technology Solutions.
Licensed under the Apache License, Version 2.0.
https://crystal-lang.org/api/0.22.0/Class.html
