Class: Bound::BoundClass::Attribute
- Inherits:
-
Object
- Object
- Bound::BoundClass::Attribute
- Defined in:
- lib/bound.rb
Direct Known Subclasses
Constant Summary collapse
- NotImplemented =
Class.new(RuntimeError)
Instance Attribute Summary collapse
-
#name ⇒ Object
readonly
Returns the value of attribute name.
-
#nested_class ⇒ Object
Returns the value of attribute nested_class.
-
#value ⇒ Object
readonly
Returns the value of attribute value.
Instance Method Summary collapse
- #assign(value) ⇒ Object
- #assign_nested(value) ⇒ Object
- #call_on(object) ⇒ Object
-
#initialize(name) ⇒ Attribute
constructor
A new instance of Attribute.
- #inspect ⇒ Object
- #is_assigned? ⇒ Boolean
- #required? ⇒ Boolean
- #valid? ⇒ Boolean
Constructor Details
#initialize(name) ⇒ Attribute
Returns a new instance of Attribute.
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# File 'lib/bound.rb', line 41 def initialize(name) @name = name end |
Instance Attribute Details
#name ⇒ Object (readonly)
Returns the value of attribute name.
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# File 'lib/bound.rb', line 38 def name @name end |
#nested_class ⇒ Object
Returns the value of attribute nested_class.
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# File 'lib/bound.rb', line 39 def nested_class @nested_class end |
#value ⇒ Object (readonly)
Returns the value of attribute value.
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# File 'lib/bound.rb', line 38 def value @value end |
Instance Method Details
#assign(value) ⇒ Object
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# File 'lib/bound.rb', line 45 def assign(value) @assigned = true if nested_class @value = assign_nested(value) else @value = value end end |
#assign_nested(value) ⇒ Object
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# File 'lib/bound.rb', line 54 def assign_nested(value) nested_attribute = NestedAttribute.new(nested_class) nested_attribute.resolve(value) end |
#call_on(object) ⇒ Object
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# File 'lib/bound.rb', line 59 def call_on(object) method = @name if object.respond_to?(method) object.send method else raise NotImplemented, "undefined method `#{method}' for #{object}" end end |
#inspect ⇒ Object
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# File 'lib/bound.rb', line 80 def inspect @value.inspect end |
#is_assigned? ⇒ Boolean
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# File 'lib/bound.rb', line 76 def is_assigned? !!@assigned end |
#required? ⇒ Boolean
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# File 'lib/bound.rb', line 72 def required? false end |
#valid? ⇒ Boolean
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# File 'lib/bound.rb', line 68 def valid? !required? || is_assigned? end |