Class: VCDry::Config

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

Constant Summary collapse

NOT_DEFINED = 
Object.new.freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, type = nil, **options) ⇒ Config

Returns a new instance of Config.



12
13
14
15
16
17
18
19
20
21
22
 
# File 'lib/vcdry/config.rb', line 12

def initialize(name, type = nil, **options)
  @name = name.to_sym
  @type = (type.nil? || type.respond_to?(:call)) ? type : VCDry::Types[type]
  @options = options

  # Translate default: nil to optional: true
  if @options.key?(:default) && @options[:default].nil?
    @options.delete(:default)
    @options[:optional] = true
  end
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



10
11
12
 
# File 'lib/vcdry/config.rb', line 10

def name
  @name
end

Instance Method Details

#array? ⇒ Boolean

Returns:

  • (Boolean) 


24
25
26
 
# File 'lib/vcdry/config.rb', line 24

def array?
  !!@options[:array]
end

#default ⇒ Object 



46
47
48
49
50
 
# File 'lib/vcdry/config.rb', line 46

def default
  value = @options.fetch(:default, NOT_DEFINED)
  value = value.call if value.respond_to?(:call)
  value
end

#default? ⇒ Boolean

Returns:

  • (Boolean) 


28
29
30
 
# File 'lib/vcdry/config.rb', line 28

def default?
  @options.key?(:default)
end

#dup ⇒ Object 



32
33
34
 
# File 'lib/vcdry/config.rb', line 32

def dup
  self.class.new(@name, @type, **@options.dup)
end

#enum? ⇒ Boolean

Returns:

  • (Boolean) 


36
37
38
 
# File 'lib/vcdry/config.rb', line 36

def enum?
  @options.key?(:values)
end

#enum_values ⇒ Object 



40
41
42
43
44
 
# File 'lib/vcdry/config.rb', line 40

def enum_values
  @enum_values ||= Array(@options[:values]).map do |value|
    @type.nil? ? value : @type.call(value)
  end
end

#instance_variable ⇒ Object 



52
53
54
 
# File 'lib/vcdry/config.rb', line 52

def instance_variable
  "@#{name}"
end

#optional? ⇒ Boolean

Returns:

  • (Boolean) 


56
57
58
 
# File 'lib/vcdry/config.rb', line 56

def optional?
  default? || @options[:optional]
end

#required? ⇒ Boolean

Returns:

  • (Boolean) 


60
61
62
 
# File 'lib/vcdry/config.rb', line 60

def required?
  !optional?
end

#type_cast(value) ⇒ Object 



64
65
66
 
# File 'lib/vcdry/config.rb', line 64

def type_cast(value)
  array? ? type_cast_array(value) : type_cast_value(value)
end