Class: Lutaml::Model::Attribute

Inherits:
Object
  • Object
show all
Includes:
CollectionHandler, DeepDupable
Defined in:
lib/lutaml/model/attribute.rb

Constant Summary collapse

ALLOWED_OPTIONS = 
i[
  raw
  default
  delegate
  collection
  values
  pattern
  transform
  choice
  sequence
  method
  method_name
  polymorphic
  polymorphic_class
  initialize_empty
  validations
  required
  ref_model_class
  ref_key_attribute
  xsd_type
  union_member_types
].freeze
TypeProbeCache =

Per-type-class memo of the custom from_xml/from_json probe used by #cast. Isolated cache holder: enclosing-class freezes (some suites freeze Lutaml::Model::Attribute) would freeze a constant Hash with it.

::Class.new do
  class << self
    def cache
      @cache ||= {}
    end
  end
end
MODEL_STRINGS = 
[
  Lutaml::Model::Type::String,
  "String",
  :string,
].freeze
CHILD_PROPAGATION_KEYS =

Delegate propagation to DeserializationContext for single source of truth.

Serialize::DeserializationContext::PROPAGATION_KEYS
WARN_ON_OVERRIDE =

Methods where accidental override is likely to cause issues All names are allowed - this list only controls which ones get a warning Format-specific serialization methods (to_xml, to_json, etc.) are pushed by each format plugin at load time via format_specific_warn_names.

i[
  # Ruby core - overriding breaks fundamental behavior
  hash object_id class send method

  # Object lifecycle - overriding without super breaks things
  initialize

  # Serialization methods - overriding breaks serialization
  to_format

  # Internal helpers - overriding breaks internal logic
  attr_value attribute_exist? key_exist? key_value
  using_default? using_default_for value_set_for
  method_missing respond_to_missing?
].freeze
EMPTY_TRANSFORM_HASH =

Performance: Frozen empty hash to reduce allocations

{}.freeze
EMPTY_VALUES_ARRAY =

Performance: Frozen empty array to reduce allocations

[].freeze

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from CollectionHandler

#build_collection, #collection, #collection?, #collection_class, #collection_instance?, #custom_collection?, #min_collection_zero?, #resolved_collection, #singular?

Constructor Details

#initialize(name, type, options = {}) ⇒ Attribute

Returns a new instance of Attribute.



120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
 
# File 'lib/lutaml/model/attribute.rb', line 120

def initialize(name, type, options = {})
  skip_validation = options.fetch(:skip_validation, false)

  unless skip_validation
    validate_name!(
      name, reserved_methods: Lutaml::Model::Serializable.instance_methods
    )
  end

  @name = name
  @options = options.except(:skip_validation)

  validate_presence!(type) unless skip_validation
  @type = type
  @unresolved_type = type
  process_options! unless skip_validation
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



6
7
8
 
# File 'lib/lutaml/model/attribute.rb', line 6

def name
  @name
end

#options ⇒ Object (readonly)

Returns the value of attribute options.



6
7
8
 
# File 'lib/lutaml/model/attribute.rb', line 6

def options
  @options
end

#validations ⇒ Object 



311
312
313
 
# File 'lib/lutaml/model/attribute.rb', line 311

def validations
  @options[:validations]
end

Class Method Details

.cast_from_string!(type) ⇒ Object 



114
115
116
117
118
 
# File 'lib/lutaml/model/attribute.rb', line 114

def self.cast_from_string!(type)
  Type.const_get(type)
rescue NameError
  raise ArgumentError, "Unknown Lutaml::Model::Type: #{type}"
end

.cast_from_symbol!(type) ⇒ Object 



108
109
110
111
112
 
# File 'lib/lutaml/model/attribute.rb', line 108

def self.cast_from_symbol!(type)
  Type.lookup(type)
rescue UnknownTypeError
  raise ArgumentError, "Unknown Lutaml::Model::Type: #{type}"
end

.cast_type!(type) ⇒ Object 



98
99
100
101
102
103
104
105
106
 
# File 'lib/lutaml/model/attribute.rb', line 98

def self.cast_type!(type)
  case type
  when Symbol then cast_from_symbol!(type)
  when String then cast_from_string!(type)
  when Class then type
  else
    raise ArgumentError, "Unknown Lutaml::Model::Type: #{type}"
  end
end

.custom_from_probe?(type) ⇒ Boolean

Public reader for compiled rule plans: does this type class carry a custom from_xml/from_json (answer static, probed once)?

Returns:

  • (Boolean) 


48
49
50
51
52
53
54
 
# File 'lib/lutaml/model/attribute.rb', line 48

def custom_from_probe?(type)
  TypeProbeCache.cache[type] ||= begin
    base = Lutaml::Model::Type::Value.singleton_class
    type.method(:from_xml).owner != base ||
      type.method(:from_json).owner != base
  end
end

.default_evaluation? ⇒ Boolean

Returns:

  • (Boolean) 


458
459
460
 
# File 'lib/lutaml/model/attribute.rb', line 458

def self.default_evaluation?
  Thread.current[:__lutaml_evaluating_default] == true
end

.evaluating_default ⇒ Object

Marks the dynamic extent in which a default proc runs against a model instance, so Serialize#method_missing can fall back to the model class for methods the instance does not define (0.7.x compatibility, lutaml-model#745).



450
451
452
453
454
455
456
 
# File 'lib/lutaml/model/attribute.rb', line 450

def self.evaluating_default
  previous = Thread.current[:__lutaml_evaluating_default]
  Thread.current[:__lutaml_evaluating_default] = true
  yield
ensure
  Thread.current[:__lutaml_evaluating_default] = previous
end

.format_specific_warn_names ⇒ Object 



90
91
92
 
# File 'lib/lutaml/model/attribute.rb', line 90

def self.format_specific_warn_names
  @format_specific_warn_names
end

.warn_on_override_names ⇒ Object 



94
95
96
 
# File 'lib/lutaml/model/attribute.rb', line 94

def self.warn_on_override_names
  WARN_ON_OVERRIDE + @format_specific_warn_names
end

Instance Method Details

#apply_value_map(value, value_map) ⇒ Object

Apply a value map to transform a value.

value_map keys (:nil, :empty, :omitted) each map either to a symbolic option (:nil, :empty, :omitted) or, for Boolean attributes, directly to true/false. The nested form value_map[key] = true/false is accepted unconditionally; the bare form value_map = true/false is gated on the attribute being a Boolean type.



332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
 
# File 'lib/lutaml/model/attribute.rb', line 332

def apply_value_map(value, value_map)
  key = if value.nil? then :nil
        elsif Utils.empty?(value) then :empty
        elsif Utils.uninitialized?(value) then :omitted
        end
  return value unless key

  nested = value_map.dig(:from, key)
  return nested if nested.is_a?(TrueClass) || nested.is_a?(FalseClass)

  option = value_map[key]
  if (option.is_a?(TrueClass) || option.is_a?(FalseClass)) &&
      (type == Lutaml::Model::Type::Boolean ||
       unresolved_type == Lutaml::Model::Type::Boolean)
    return option
  end

  case option
  when :nil
    nil
  when :empty
    if key == :empty then value
    elsif collection? then build_collection
    else ""
    end
  else
    Lutaml::Model::UninitializedClass.instance
  end
end

#cast(value, format, register, options = {}) ⇒ Object 



683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
 
# File 'lib/lutaml/model/attribute.rb', line 683

def cast(value, format, register, options = {})
  # Namespace-aware type resolution: use type_with_namespace if namespace_uri provided
  namespace_uri = options[:namespace_uri]
  resolved_type = if options[:resolved_type]
                    options[:resolved_type]
                  elsif register && namespace_uri
                    type_with_namespace(register, namespace_uri)
                  else
                    type(register)
                  end
  if (collection_instance?(value) || value.is_a?(Array)) &&
      !value_policy.whole_value?(resolved_type)
    merged_opts = options.merge(resolved_type: resolved_type,
                                converted: true)
    return build_collection(value.map do |v|
      cast(v, format, register, merged_opts)
    end)
  end

  return value if already_serialized?(resolved_type, value)

  return cast_union(value, format, register) if union?

  # Special handling for Reference types - pass the metadata
  # Check @options[:ref_model_class] which is set when type is { ref: [...] }
  if @options[:ref_model_class] && resolved_type == Lutaml::Model::Type::Reference
    return resolved_type.cast_with_metadata(value,
                                            @options[:ref_model_class], @options[:ref_key_attribute])
  end

  # Fast path for Type::Value subclasses (String, Integer, Boolean, etc.)
  # These are never Serializable, so skip expensive can_serialize? and needs_conversion? checks
  # Skip if type has custom from_xml/from_json methods (defined on the class itself, not inherited).
  # The probe allocated two Method objects per cast call; the answer is
  # static per type class, so it is resolved once.
  if resolved_type.is_a?(Class) && resolved_type < Lutaml::Model::Type::Value && !self.class.custom_from_probe?(resolved_type)
    return resolved_type.cast(value)
  end

  klass = resolve_polymorphic_class(resolved_type, value, options)
  if can_serialize?(klass, value, format, options)
    propagated = Serialize::DeserializationContext.propagate(options)
    klass.apply_mappings(value, format,
                         propagated.merge(register: register))
  elsif needs_conversion?(klass, value)
    klass.public_send(:"from_#{format}", value)
  else
    # No need to use register#get_class,
    # can_serialize? method already checks if type is Serializable or not.
    Type.lookup(klass).cast(value)
  end
end

#cast_element(value, register) ⇒ Object 



370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
 
# File 'lib/lutaml/model/attribute.rb', line 370

def cast_element(value, register)
  resolved_type = type(register)
  return cast_union(value, nil, register) if union?
  return resolved_type.new(value) if value.is_a?(::Hash) && !hash_type?

  # Special handling for Reference types - pass the metadata
  if unresolved_type == Lutaml::Model::Type::Reference
    return resolved_type.cast_with_metadata(value,
                                            @options[:ref_model_class], @options[:ref_key_attribute])
  end

  validate_attr_type!(resolved_type)

  resolved_type.cast(value)
end

#cast_type!(type) ⇒ Object 



315
316
317
 
# File 'lib/lutaml/model/attribute.rb', line 315

def cast_type!(type)
  self.class.cast_type!(type)
end

#cast_value(value, register) ⇒ Object 



319
320
321
322
323
 
# File 'lib/lutaml/model/attribute.rb', line 319

def cast_value(value, register)
  return cast_element(value, register) unless collection_instance?(value)

  build_collection(value.map { |v| cast_element(v, register) })
end

#choice ⇒ Object

min_collection_zero? is provided by CollectionHandler module



777
778
779
 
# File 'lib/lutaml/model/attribute.rb', line 777

def choice
  @options[:choice]
end

#clear_type_cache ⇒ Object

Clear type resolution caches for this attribute. Called by GlobalContext.clear_caches to ensure stale entries from GC'd TypeContext objects don't persist.



890
891
892
893
894
 
# File 'lib/lutaml/model/attribute.rb', line 890

def clear_type_cache
  @type_cache&.clear
  @cached_type_default = nil
  @default_type_context = nil
end

#copy_internal_state_from(source) ⇒ Object

Copy internal state from another Attribute instance. Used by dup to transfer processed state without calling private writers.



882
883
884
885
 
# File 'lib/lutaml/model/attribute.rb', line 882

def copy_internal_state_from(source)
  @raw = source.raw?
  @validations = source.validations
end

#deep_dup ⇒ Object 



797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
 
# File 'lib/lutaml/model/attribute.rb', line 797

def deep_dup
  # Don't deep_dup the entire options hash because:
  # 1. Lambdas/Procs (like :default) should not be duplicated
  # 2. Classes (like :collection class) are immutable
  # 3. Deep dupping creates circular references when lambdas close over the attribute

  # Selectively copy options using direct type checks to avoid method calls
  duped_options = { skip_validation: true }
  options.each do |key, value|
    duped_options[key] = case value
                         when Symbol, TrueClass, FalseClass, Numeric, Class, Module, Proc, Method, NilClass
                           value # Immutable, don't dup
                         when Range
                           # Only dup if bounds are mutable strings
                           if value.begin.is_a?(String) || (value.end && value.end.is_a?(String))
                             Range.new(value.begin.dup, value.end&.dup, value.exclude_end?)
                           else
                             value # Immutable bounds, safe to reuse
                           end
                         when Hash
                           Utils.deep_dup(value)
                         when Array
                           Utils.deep_dup(value)
                         else
                           value # Keep as-is (might be a complex object)
                         end
  end

  # Skip validation during deep_dup - options are already validated in original
  # This prevents infinite recursion when process_options! tries to access collection
  self.class.new(name, unresolved_type, duped_options).tap do |dup_attr|
    dup_attr.copy_internal_state_from(self)
  end
end

#default(register = Lutaml::Model::Config.default_register, instance_object = nil) ⇒ Object 



404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
 
# File 'lib/lutaml/model/attribute.rb', line 404

def default(register = Lutaml::Model::Config.default_register,
instance_object = nil)
  if instance_object.nil?
    @default_cache ||= {}
    cached = @default_cache[register]
    return cached if cached

    result = cast_value(default_value(register, nil), register)
    if immutable_value?(result)
      @default_cache[register] = result
    end
    result
  else
    cast_value(default_value(register, instance_object), register)
  end
end

#default_set?(register, instance_object = nil) ⇒ Boolean

Returns:

  • (Boolean) 


462
463
464
 
# File 'lib/lutaml/model/attribute.rb', line 462

def default_set?(register, instance_object = nil)
  !Utils.uninitialized?(default_value(register, instance_object))
end

#default_type_context ⇒ Object

Performance: Cache default type context lookup



261
262
263
264
265
266
267
 
# File 'lib/lutaml/model/attribute.rb', line 261

def default_type_context
  @default_type_context ||= begin
    default_id = Lutaml::Model::Config.default_register
    ctx = GlobalContext.context(default_id)
    ctx || GlobalContext.default_context
  end
end

#default_value(register, instance_object = nil) ⇒ Object 



427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
 
# File 'lib/lutaml/model/attribute.rb', line 427

def default_value(register, instance_object = nil)
  if delegate
    type(register).attributes(register)[to].default(register,
                                                    instance_object)
  elsif options[:default].is_a?(Proc)
    if instance_object
      ::Lutaml::Model::Attribute.evaluating_default do
        instance_object.instance_exec(&options[:default])
      end
    else
      options[:default].call
    end
  elsif options.key?(:default)
    options[:default]
  else
    Lutaml::Model::UninitializedClass.instance
  end
end

#delegate ⇒ Object 



292
293
294
 
# File 'lib/lutaml/model/attribute.rb', line 292

def delegate
  @options[:delegate]
end

#derived? ⇒ Boolean

Returns:

  • (Boolean) 


288
289
290
 
# File 'lib/lutaml/model/attribute.rb', line 288

def derived?
  !method_name.nil?
end

#enum? ⇒ Boolean

Returns:

  • (Boolean) 


400
401
402
 
# File 'lib/lutaml/model/attribute.rb', line 400

def enum?
  !enum_values.empty?
end

#enum_values ⇒ Object 



473
474
475
 
# File 'lib/lutaml/model/attribute.rb', line 473

def enum_values
  @options.key?(:values) ? @options[:values] : EMPTY_VALUES_ARRAY
end

#execute_validations!(value) ⇒ Object

execute custom validations on the attribute value i.e presence: true, numericality: true, etc

Raises:



550
551
552
553
554
555
556
557
558
559
560
 
# File 'lib/lutaml/model/attribute.rb', line 550

def execute_validations!(value)
  return true if Utils.blank?(value)

  memoization_container = {}
  errors = Lutaml::Model::Validator.call(value, validations,
                                         memoization_container)

  return if errors.empty?

  raise Lutaml::Model::ValidationFailedError.new(errors)
end

#extract_register(_context_or_register) ⇒ Object

Extract the Register from the context_or_register argument



232
233
234
235
236
 
# File 'lib/lutaml/model/attribute.rb', line 232

def extract_register(_context_or_register)
  # Register backward compatibility - now always returns nil
  # Type resolution uses GlobalContext directly
  nil
end

#hash_type? ⇒ Boolean

Returns:

  • (Boolean) 


386
387
388
 
# File 'lib/lutaml/model/attribute.rb', line 386

def hash_type?
  type == Lutaml::Model::Type::Hash
end

#immutable_value?(value) ⇒ Boolean

Returns:

  • (Boolean) 


421
422
423
424
425
 
# File 'lib/lutaml/model/attribute.rb', line 421

def immutable_value?(value)
  value.nil? || value.is_a?(Numeric) || value.is_a?(String) ||
    value.is_a?(Symbol) || value == true || value == false ||
    value.frozen?
end

#initialize_empty? ⇒ Boolean

Returns:

  • (Boolean) 


307
308
309
 
# File 'lib/lutaml/model/attribute.rb', line 307

def initialize_empty?
  @options[:initialize_empty]
end

#method_name ⇒ Object 



303
304
305
 
# File 'lib/lutaml/model/attribute.rb', line 303

def method_name
  @options[:method_name]
end

#model_instance?(value) ⇒ Boolean

Returns:

  • (Boolean) 


677
678
679
680
681
 
# File 'lib/lutaml/model/attribute.rb', line 677

def model_instance?(value)
  return false unless @options[:ref_model_class]

  value.class.name == @options[:ref_model_class]
end

#normalize_context(context_or_register) ⇒ Object

Normalize register/context to TypeContext for resolution Performance: Optimized to reduce allocations in hot path



240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
 
# File 'lib/lutaml/model/attribute.rb', line 240

def normalize_context(context_or_register)
  # Fast path for nil - most common case
  return default_type_context if context_or_register.nil?

  # Fast path for TypeContext - no conversion needed
  return context_or_register if context_or_register.is_a?(Lutaml::Model::TypeContext)

  # Handle Register and Symbol cases
  context_id = case context_or_register
               when Lutaml::Model::Register
                 context_or_register.id
               when Symbol
                 context_or_register
               else
                 return GlobalContext.default_context
               end

  GlobalContext.context(context_id) || GlobalContext.default_context
end

#pattern ⇒ Object 



466
467
468
 
# File 'lib/lutaml/model/attribute.rb', line 466

def pattern
  options[:pattern]
end

#polymorphic? ⇒ Boolean

Returns:

  • (Boolean) 


273
274
275
 
# File 'lib/lutaml/model/attribute.rb', line 273

def polymorphic?
  @options[:polymorphic_class]
end

#process_options! ⇒ Object 



781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
 
# File 'lib/lutaml/model/attribute.rb', line 781

def process_options!
  validate_options!(@options)
  if union?
    @options[:union_member_types] =
      Lutaml::Model::Type::Union.validate_members!(@options[:union_member_types])
    Lutaml::Model::Type::Union.validate_combo!(@options)
  end
  @raw = !!@options[:raw]
  if @raw
    warn "[DEPRECATED] attribute :#{name}, :string, raw: true is deprecated. " \
         "Use map_element \"name\", to: :#{name}, raw: :content instead."
  end
  @validations = @options[:validations]
  set_default_for_collection if collection?
end

#raw? ⇒ Boolean

Collection methods are provided by CollectionHandler module

Returns:

  • (Boolean) 


396
397
398
 
# File 'lib/lutaml/model/attribute.rb', line 396

def raw?
  @raw
end

#reference_key(value) ⇒ Object 



668
669
670
671
672
673
674
675
 
# File 'lib/lutaml/model/attribute.rb', line 668

def reference_key(value)
  return nil unless value
  return value.map { |item| reference_key(item) } if value.is_a?(Array)

  return value.public_send(@options[:ref_key_attribute]) if model_instance?(value)

  value
end

#required_value_set?(value) ⇒ Boolean

Returns:

  • (Boolean) 


362
363
364
365
366
367
368
 
# File 'lib/lutaml/model/attribute.rb', line 362

def required_value_set?(value)
  return true unless options[:required]
  return false if value.nil?
  return false if Utils.empty?(value)

  true
end

#resolver ⇒ Object

Cache the resolver reference — GlobalContext.resolver is a singleton that never changes during the process lifetime. Avoids repeated singleton access overhead on every type() call.



141
142
143
 
# File 'lib/lutaml/model/attribute.rb', line 141

def resolver
  @resolver ||= GlobalContext.resolver
end

#sequenced_appearance_count(element_order, mapped_name, current_index) ⇒ Object

resolved_collection is provided by CollectionHandler module

Raises:



754
755
756
757
758
759
760
761
762
763
764
765
766
 
# File 'lib/lutaml/model/attribute.rb', line 754

def sequenced_appearance_count(element_order, mapped_name, current_index)
  elements = element_order[current_index..]
  element_count = elements.take_while do |element|
    element == mapped_name
  end.count
  return element_count if element_count.between?(*resolved_collection.minmax)

  raise Lutaml::Model::ElementCountOutOfRangeError.new(
    mapped_name,
    element_count,
    collection,
  )
end

#serializable?(register) ⇒ Boolean

Returns:

  • (Boolean) 


736
737
738
 
# File 'lib/lutaml/model/attribute.rb', line 736

def serializable?(register)
  type(register) <= Serialize
end

#serializable_type?(register = nil) ⇒ Boolean

Cached version of serializable? check for hot deserialization path Called millions of times in resolve_rule_names_with_type and value_for_rule

Returns:

  • (Boolean) 


742
743
744
745
746
747
748
749
750
 
# File 'lib/lutaml/model/attribute.rb', line 742

def serializable_type?(register = nil)
  register_key = register || :default
  return @serializable_type_cache[register_key] if defined?(@serializable_type_cache) && @serializable_type_cache&.key?(register_key)

  resolved_type = type(register_key)
  result = resolved_type.is_a?(Class) && resolved_type.include?(Serialize)
  @serializable_type_cache ||= {}
  @serializable_type_cache[register_key] = result
end

#serialize(value, format, register, options = {}) ⇒ Object 



649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
 
# File 'lib/lutaml/model/attribute.rb', line 649

def serialize(value, format, register, options = {})
  value ||= build_collection if collection? && initialize_empty?
  return value if value.nil? || Utils.uninitialized?(value)

  resolved_type = options[:resolved_type] || type(register)
  serialize_options = options.merge(resolved_type: resolved_type)
  value = reference_key(value) if unresolved_type == Lutaml::Model::Type::Reference
  if collection_instance?(value)
    return serialize_array(value, format, register,
                           serialize_options)
  end
  if resolved_type <= Serialize
    return serialize_model(value, format, register,
                           options)
  end

  serialize_value(value, format, resolved_type)
end

#setter ⇒ Object 



390
391
392
 
# File 'lib/lutaml/model/attribute.rb', line 390

def setter
  :"#{@name}="
end

#transform ⇒ Object 



299
300
301
 
# File 'lib/lutaml/model/attribute.rb', line 299

def transform
  @options[:transform] || EMPTY_TRANSFORM_HASH
end

#transform_export_method ⇒ Object 



481
482
483
 
# File 'lib/lutaml/model/attribute.rb', line 481

def transform_export_method
  transform[:export]
end

#transform_import_method ⇒ Object 



477
478
479
 
# File 'lib/lutaml/model/attribute.rb', line 477

def transform_import_method
  transform[:import]
end

#type(context_or_register = nil) ⇒ Object 



156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
 
# File 'lib/lutaml/model/attribute.rb', line 156

def type(context_or_register = nil)
  return if unresolved_type.nil?

  # Performance: Fast path for nil or default register (most common case during deserialization)
  if context_or_register.nil? || context_or_register == :default
    return @cached_type_default ||= begin
      context = normalize_context(context_or_register)
      resolver.resolve(unresolved_type, context)
    end
  end

  # Non-default register path: resolve directly without normalize_context
  # when context_or_register is already a TypeContext or Symbol (common cases)
  context = case context_or_register
            when Lutaml::Model::TypeContext
              context_or_register
            when Symbol
              GlobalContext.context(context_or_register) || GlobalContext.default_context
            when Lutaml::Model::Register
              GlobalContext.context(context_or_register.id) || GlobalContext.default_context
            else
              GlobalContext.default_context
            end

  # Performance: Cache per TypeContext identity.
  # When type substitution replaces a TypeContext, the object_id changes,
  # so old cache entries are never hit again (safe invalidation).
  cache_key = context.object_id
  @type_cache ||= {}
  cached = @type_cache[cache_key]
  return cached if cached

  resolved = resolver.resolve(unresolved_type, context)
  @type_cache[cache_key] = resolved
  resolved
end

#type_namespace_class(register = nil) ⇒ Class?

Get namespace class from Type::Value or Model class

Parameters:

  • register (Symbol, nil) (defaults to: nil) —

    register ID for type resolution

Returns:

  • (Class, nil) —

    XmlNamespace class if type has namespace



837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
 
# File 'lib/lutaml/model/attribute.rb', line 837

def type_namespace_class(register = nil)
  register_key = register || :default
  return @type_ns_class_cache[register_key] if defined?(@type_ns_class_cache) && @type_ns_class_cache&.key?(register_key)

  # Resolve type namespace via type() which uses GlobalContext.resolver
  resolved_type = type(register_key)
  result = nil

  # Check if type is a Type::Value class
  # Type namespaces are ONLY declared on Type::Value subclasses,
  # not on Serializable models. Serializable models have element
  # namespaces, which are handled separately.
  if resolved_type.is_a?(Class) && resolved_type <= Lutaml::Model::Type::Value
    result = resolved_type.namespace_class
  end

  @type_ns_class_cache ||= {}
  @type_ns_class_cache[register_key] = result
end

#type_namespace_prefix(register = nil) ⇒ String?

Get namespace prefix from type

Parameters:

  • register (Symbol, nil) (defaults to: nil) —

    register ID for type resolution

Returns:

  • (String, nil) —

    namespace prefix



876
877
878
 
# File 'lib/lutaml/model/attribute.rb', line 876

def type_namespace_prefix(register = nil)
  type_namespace_class(register)&.prefix_default
end

#type_namespace_uri(register = nil) ⇒ String?

Get namespace URI from type

Parameters:

  • register (Symbol, nil) (defaults to: nil) —

    register ID for type resolution

Returns:

  • (String, nil) —

    namespace URI



862
863
864
865
866
867
868
869
 
# File 'lib/lutaml/model/attribute.rb', line 862

def type_namespace_uri(register = nil)
  register_key = register || :default
  return @type_ns_uri_cache[register_key] if defined?(@type_ns_uri_cache) && @type_ns_uri_cache&.key?(register_key)

  result = type_namespace_class(register_key)&.uri
  @type_ns_uri_cache ||= {}
  @type_ns_uri_cache[register_key] = result
end

#type_with_namespace(register, namespace_uri = nil) ⇒ Class?

Get type with namespace-aware resolution.

Uses the register's resolve_in_namespace method for version-aware type resolution. Falls back to standard resolution if no namespace or register is provided.

Parameters:

  • register (Lutaml::Model::Register, Symbol, nil) —

    The register or register ID

  • namespace_uri (String, nil) (defaults to: nil) —

    The namespace URI for version awareness

Returns:

  • (Class, nil) —

    The type class or nil



203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
 
# File 'lib/lutaml/model/attribute.rb', line 203

def type_with_namespace(register, namespace_uri = nil)
  return type(register) unless register && namespace_uri
  return if unresolved_type.nil?

  # Performance: Memoize type resolution per (register, namespace_uri) pair
  # This avoids repeated resolve_in_namespace calls for the same attribute
  @type_with_namespace_cache ||= {}
  cache_key = [register, namespace_uri]
  return @type_with_namespace_cache[cache_key] if @type_with_namespace_cache.key?(cache_key)

  # Resolve register from symbol if needed
  actual_register = if register.is_a?(Symbol)
                      Lutaml::Model::GlobalRegister.lookup(register)
                    else
                      register
                    end

  # If we don't have an actual Register object, fall back to standard resolution
  result = if actual_register.is_a?(Lutaml::Model::Register)
             actual_register.resolve_in_namespace(unresolved_type,
                                                  namespace_uri)
           end
  result ||= type(register)

  @type_with_namespace_cache[cache_key] = result
  result
end

#union? ⇒ Boolean

Returns:

  • (Boolean) 


277
278
279
280
281
 
# File 'lib/lutaml/model/attribute.rb', line 277

def union?
  return @union unless @union.nil?

  @union = unresolved_type == Lutaml::Model::Type::Union
end

#union_member_types ⇒ Object 



283
284
285
286
 
# File 'lib/lutaml/model/attribute.rb', line 283

def union_member_types
  @union_member_types ||=
    @options[:union_member_types].map { |member| cast_type!(member) }
end

#unresolved_type ⇒ Object 



269
270
271
 
# File 'lib/lutaml/model/attribute.rb', line 269

def unresolved_type
  @unresolved_type || @type
end

#valid_collection!(value, caller) ⇒ Object 



610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
 
# File 'lib/lutaml/model/attribute.rb', line 610

def valid_collection!(value, caller)
  if collection_instance?(value) && !collection? &&
      !value_policy.whole_value?(unresolved_type)
    raise Lutaml::Model::CollectionTrueMissingError.new(name,
                                                        caller)
  end

  return true unless collection?

  # Allow any value for unbounded collections
  return true if collection == true

  unless (Utils.uninitialized?(value) && resolved_collection.min.zero?) || collection_instance?(value)
    raise Lutaml::Model::CollectionCountOutOfRangeError.new(
      name,
      value,
      collection,
    )
  end

  return true unless resolved_collection.is_a?(Range)

  if resolved_collection.is_a?(Range) && resolved_collection.end.infinite?
    if value.size < resolved_collection.begin
      raise Lutaml::Model::CollectionCountOutOfRangeError.new(
        name,
        value,
        collection,
      )
    end
  elsif resolved_collection.is_a?(Range) && !resolved_collection.cover?(value.size)
    raise Lutaml::Model::CollectionCountOutOfRangeError.new(
      name,
      value,
      collection,
    )
  end
end

#valid_pattern!(value, resolved_type) ⇒ Object

Pattern binds string values only. For a plain :string attribute that is the resolved type; for a union, the pattern applies to a value that took the :string branch (a non-string member is exempt). Collections check each element, so a mix of members validates only its string entries.



507
508
509
510
511
512
513
514
515
516
517
518
519
 
# File 'lib/lutaml/model/attribute.rb', line 507

def valid_pattern!(value, resolved_type)
  return true unless pattern

  Array(value).each do |item|
    next unless resolved_type == Lutaml::Model::Type::String ||
      item.is_a?(::String)
    next if pattern.match?(item)

    raise Lutaml::Model::PatternNotMatchedError.new(name, pattern, item)
  end

  true
end

#valid_value!(value) ⇒ Object 



485
486
487
488
489
490
491
492
493
494
495
 
# File 'lib/lutaml/model/attribute.rb', line 485

def valid_value!(value)
  return true if value.nil? && singular?
  return true unless enum?
  return true if Utils.uninitialized?(value)

  unless valid_value?(value)
    raise Lutaml::Model::InvalidValueError.new(name, value, enum_values)
  end

  true
end

#valid_value?(value) ⇒ Boolean

Returns:

  • (Boolean) 


497
498
499
500
501
 
# File 'lib/lutaml/model/attribute.rb', line 497

def valid_value?(value)
  return true unless options[:values]

  options[:values].include?(value)
end

#validate_choice_content!(elements) ⇒ Object 



768
769
770
771
772
773
 
# File 'lib/lutaml/model/attribute.rb', line 768

def validate_choice_content!(elements)
  return elements.count unless resolved_collection
  return 1 if elements.count.between?(*resolved_collection.minmax)

  elements.each_slice(resolved_collection.max).count
end

#validate_collection_range ⇒ Object 



579
580
581
582
583
584
585
586
587
588
589
 
# File 'lib/lutaml/model/attribute.rb', line 579

def validate_collection_range
  range = @options[:collection]
  return if range == true
  return if custom_collection?

  unless range.is_a?(Range)
    raise ArgumentError, "Invalid collection range: #{range}"
  end

  validate_range!(range)
end

#validate_polymorphic(value, resolved_type) ⇒ Object 



562
563
564
565
566
567
568
569
570
571
 
# File 'lib/lutaml/model/attribute.rb', line 562

def validate_polymorphic(value, resolved_type)
  if value.is_a?(Array)
    return value.all? do |v|
      validate_polymorphic!(v, resolved_type)
    end
  end
  return true unless options[:polymorphic]

  valid_polymorphic_type?(value, resolved_type)
end

#validate_polymorphic!(value, resolved_type) ⇒ Object

Raises:



573
574
575
576
577
 
# File 'lib/lutaml/model/attribute.rb', line 573

def validate_polymorphic!(value, resolved_type)
  return true if validate_polymorphic(value, resolved_type)

  raise Lutaml::Model::PolymorphicError.new(value, options, resolved_type)
end

#validate_range!(range) ⇒ Object 



591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
 
# File 'lib/lutaml/model/attribute.rb', line 591

def validate_range!(range)
  if range.begin.nil?
    raise ArgumentError,
          "Invalid collection range: #{range}. Begin must be specified."
  end

  if range.begin.negative?
    raise ArgumentError,
          "Invalid collection range: #{range}. " \
          "Begin must be non-negative."
  end

  if range.end && range.end < range.begin
    raise ArgumentError,
          "Invalid collection range: #{range}. " \
          "End must be greater than or equal to begin."
  end
end

#validate_value!(value, register, instance_object: nil) ⇒ Object

Check if the value to be assigned is valid for the attribute

Currently there are 2 validations

  1. Value should be from the values list if they are defined e.g values: ["foo", "bar"] is set then any other value for this attribute will raise Lutaml::Model::InvalidValueError

  2. Value count should be between the collection range if defined e.g if collection: 0..5 is set then the value greater then 5 will raise Lutaml::Model::CollectionCountOutOfRangeError



531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
 
# File 'lib/lutaml/model/attribute.rb', line 531

def validate_value!(value, register, instance_object: nil)
  # Use the default value if the value is nil
  validate_required!(value)

  if value.nil?
    value = cast_value(default_value(register, instance_object),
                       register)
  end
  resolved_type = type(register)

  valid_value!(value) &&
    valid_collection!(value, self) &&
    valid_pattern!(value, resolved_type) &&
    validate_polymorphic!(value, resolved_type) &&
    execute_validations!(value)
end

#value_policy ⇒ Object

The value-shaping policy for this attribute. Constructed lazily so the collection/union/ref flags are settled; memoized because they are fixed after definition.



148
149
150
151
152
153
154
 
# File 'lib/lutaml/model/attribute.rb', line 148

def value_policy
  @value_policy ||= ValuePolicy.new(
    collection: collection?,
    union: union?,
    reference: !@options[:ref_model_class].nil?,
  )
end