Class: Dry::Validation::PredicateRegistry
- Inherits:
-
Object
- Object
- Dry::Validation::PredicateRegistry
- Defined in:
- lib/dry/validation/predicate_registry.rb
Defined Under Namespace
Instance Attribute Summary collapse
-
#external ⇒ Object
readonly
Returns the value of attribute external.
-
#predicates ⇒ Object
readonly
Returns the value of attribute predicates.
Class Method Summary collapse
Instance Method Summary collapse
- #[](name) ⇒ Object
- #ensure_valid_predicate(name, args_or_arity, schema = nil) ⇒ Object
-
#initialize(external, predicates = {}) ⇒ PredicateRegistry
constructor
A new instance of PredicateRegistry.
- #key?(name) ⇒ Boolean
- #new(klass) ⇒ Object
Constructor Details
#initialize(external, predicates = {}) ⇒ PredicateRegistry
Returns a new instance of PredicateRegistry.
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# File 'lib/dry/validation/predicate_registry.rb', line 47 def initialize(external, predicates = {}) @external = external @predicates = predicates end |
Instance Attribute Details
#external ⇒ Object (readonly)
Returns the value of attribute external.
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# File 'lib/dry/validation/predicate_registry.rb', line 5 def external @external end |
#predicates ⇒ Object (readonly)
Returns the value of attribute predicates.
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# File 'lib/dry/validation/predicate_registry.rb', line 4 def predicates @predicates end |
Class Method Details
.[](klass, predicates) ⇒ Object
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# File 'lib/dry/validation/predicate_registry.rb', line 34 def self.[](klass, predicates) Unbound.new(predicates).tap do |registry| klass.class_eval do def self.method_added(name) super if name.to_s.end_with?('?') registry.update(name => instance_method(name)) end end end end end |
Instance Method Details
#[](name) ⇒ Object
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# File 'lib/dry/validation/predicate_registry.rb', line 60 def [](name) predicates.fetch(name) do if external.key?(name) external[name] else raise_unknown_predicate_error(name) end end end |
#ensure_valid_predicate(name, args_or_arity, schema = nil) ⇒ Object
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# File 'lib/dry/validation/predicate_registry.rb', line 74 def ensure_valid_predicate(name, args_or_arity, schema = nil) return if schema && schema.instance_methods.include?(name) if name == :key? raise InvalidSchemaError, "#{name} is a reserved predicate name" end if key?(name) arity = self[name].arity case args_or_arity when Array raise_invalid_arity_error(name) if ![0, args_or_arity.size + 1].include?(arity) when Fixnum raise_invalid_arity_error(name) if args_or_arity != arity end else raise_unknown_predicate_error(name) end end |
#key?(name) ⇒ Boolean
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# File 'lib/dry/validation/predicate_registry.rb', line 70 def key?(name) predicates.key?(name) || external.key?(name) end |
#new(klass) ⇒ Object
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# File 'lib/dry/validation/predicate_registry.rb', line 52 def new(klass) new_predicates = predicates .keys .each_with_object({}) { |key, res| res[key] = klass.instance_method(key) } self.class.new(external).update(new_predicates) end |