Class: Naming::Meta

Inherits:
Object
  • Object
show all
Defined in:
lib/naming.rb

Overview

Meta is a container of name and value. This is super class of all naming classes.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(value) ⇒ Meta

Returns a new instance of Meta.

Parameters:

  • value (Object) —

    the value



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# File 'lib/naming.rb', line 114

def initialize(value)
  @value = value
end

Class Method Details

.name ⇒ Symbol

Return the name as symbol. It is just name, doesn’t include module path.

Examples:

Naming::A.name #=> :A

Returns:

  • (Symbol) —

    the name



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# File 'lib/naming.rb', line 96

def name
  self.to_s.split("::").last.to_sym
end

.name=(name) ⇒ void

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

This method returns an undefined value.

Set the name.

Parameters:

  • name (Symbol) —

    the name



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# File 'lib/naming.rb', line 107

def name=(name)
  @name = name unless @name
end

.others(array) ⇒ Object

Collect objects from the array excluding named objects which have the same name.

Examples:

Naming::A.values([
  Naming.A(1),
  Naming.B(2),
  "abc",
  Naming.A(3),
  123,
  nil
]) #=> [Naming.B(2), "abc", 123, nil]

Parameters:

  • array (Array) —

    target of value extraction



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# File 'lib/naming.rb', line 85

def others(array)
  array.select{|elt| not(elt.kind_of?(self))}
end

.values(array) ⇒ Object

Extract values which have the same name from the array.

Examples:

Naming::A.values([
  Naming.A(1),
  Naming.B(2),
  "abc",
  Naming.A(3),
  123,
  nil
]) #=> [1, 3]

Parameters:

  • array (Array) —

    target of value extraction



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# File 'lib/naming.rb', line 66

def values(array)
  array.select{|elt| elt.kind_of?(self)}.map{|elt| elt.value}
end

Instance Method Details

#==(other) ⇒ Object Also known as: eql?

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/naming.rb', line 135

def ==(other)
  return false unless other.kind_of?(self.class)
  @value == other.value
end

#hash ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/naming.rb', line 142

def hash
  @value.hash
end

#name ⇒ Symbol

Return the name.

Returns:

  • (Symbol) —

    the name



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# File 'lib/naming.rb', line 122

def name
  self.class.name
end

#value ⇒ Object

Return the value.

Returns:

  • (Object) —

    the value



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# File 'lib/naming.rb', line 130

def value
  @value
end