Module: Crystalline

Extended by:
T::Sig
Defined in:
lib/crystalline.rb,
lib/crystalline/utils.rb,
lib/crystalline/metadata_fields.rb

Overview

typed: true frozen_string_literal: true

Defined Under Namespace

Modules: MetadataFields

Class Method Summary collapse

Class Method Details

.non_nilable_attr_count(klass) ⇒ Object 



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# File 'lib/crystalline/utils.rb', line 58

def self.non_nilable_attr_count(klass)
  # somewhat sane sort ordering for Union deserialization.
  # All Crystalline objects return the number of non-nilable fields
  # All non-string primitives return 2
  # All arrays and hashes return 1
  # Strings return 0 (since any data can deserialize to a string, it should be our last attempt)
  if klass.respond_to? :fields
    return -1 * klass.fields.count do |field|
      !T.nilable? field.type
    end
  else
    if klass == String
      return 0
    elsif klass.is_a?(T::Types::TypedArray) || klass.is_a?(T::Types::TypedHash)
      return 1
    end
    return 2
  end
end

.to_dict(complex) ⇒ Object 



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# File 'lib/crystalline/utils.rb', line 12

def self.to_dict(complex)
  if complex.is_a? Array
    complex.map { |v| Crystalline.to_dict(v) }
  elsif complex.is_a? Hash
    complex.transform_values { |v| Crystalline.to_dict(v) }
  elsif complex.respond_to?(:class) && complex.class.include?(::Crystalline::MetadataFields)
    complex.to_dict
  else
    val_to_string complex, primitives: false
  end
end

.to_json(complex) ⇒ Object 



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# File 'lib/crystalline/utils.rb', line 24

def self.to_json(complex)
  JSON.dump(to_dict(complex))
end

.unmarshal_json(data, type) ⇒ Object 



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# File 'lib/crystalline/utils.rb', line 29

def self.unmarshal_json(data, type)
  if T.simplifiable? type
    type = T.simplify_type type
  end
  if type.instance_of?(Class) && type.include?(::Crystalline::MetadataFields)
    type.from_dict(data)
  elsif T.arr? type
    data.map { |v| Crystalline.unmarshal_json(v, T.arr_of(type)) }
  elsif T.hash? type
    data.transform_values { |v| Crystalline.unmarshal_json(v, T.hash_of(type)) }
  else
    data
  end
end

.val_to_string(val, primitives: true) ⇒ Object 



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# File 'lib/crystalline/utils.rb', line 45

def self.val_to_string(val, primitives: true)
  if val.is_a? T::Enum
    val.serialize
  elsif val.is_a? DateTime
    val.strftime('%Y-%m-%dT%H:%M:%S.%NZ')
  elsif primitives
    val.to_s
  else
    val
  end
end