Class: Alba::TypedAttribute Private
- Inherits:
-
Object
- Object
- Alba::TypedAttribute
- Defined in:
- lib/alba/typed_attribute.rb
Overview
This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.
Representing typed attributes to encapsulate logic about types
Instance Method Summary collapse
-
#initialize(name:, type:, converter:) ⇒ TypedAttribute
constructor
private
A new instance of TypedAttribute.
-
#value(object) ⇒ String, ...
private
Type-checked or type-converted object.
Constructor Details
#initialize(name:, type:, converter:) ⇒ TypedAttribute
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.
Returns a new instance of TypedAttribute.
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# File 'lib/alba/typed_attribute.rb', line 8 def initialize(name:, type:, converter:) @name = name t = Alba.find_type(type) @type = case converter when true then t.dup.tap { _1.auto_convert = true } when false, nil then t else t.dup.tap { _1.auto_convert_with(converter) } end end |
Instance Method Details
#value(object) ⇒ String, ...
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.
Returns type-checked or type-converted object.
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# File 'lib/alba/typed_attribute.rb', line 21 def value(object) v = object.__send__(@name) result = @type.check(v) result ? v : @type.convert(v) rescue TypeError raise TypeError, "Attribute #{@name} is expected to be #{@type.name} but actually #{display_value_for(v)}." end |