QNester/methodist

class Methodist::Builder < Methodist::Pattern
  def self.attr_accessor: (*keyable args) -> void

  # Define attribute and set validation for value
  def self.field: (keyable attr_name, ^(untyped) -> bool, **untyped options) -> void

  # Define multiple attributes and set validation for values
  def self.fields: (*keyable attr_names) ?{ (untyped) -> bool } -> void

  # Array of defined attributes
  def self.attributes: () -> Array[Symbol]

  alias self.attrs self.attributes

  def self.proc_const_name: (keyable attr_name) -> String

  private

  def self.set_proc_to_const: (^(untyped) -> bool, keyable attr_name) -> void

  def self.define_read_method_with_default: (keyable, untyped default_val) -> void

  def self.define_write_method: (keyable attr_name, ^(untyped) -> bool, Hash[Symbol, untyped] options) -> void

  public

  # Convert attributes and values to hash.
  #
  # ==== Example
  #   In builder with attributes 'title', 'author'
  #   when you will use this method you will have:
  #   { title: 'Title', author: 'Author' }
  #
  def to_h: () -> Hash[Symbol, untyped]

  alias to_hash to_h

  # Validate all attributes.
  def valid?: () -> bool

  # Validate attribute value.
  # Proc passed in #field method use for validation.
  # If proc was not defined just return true.
  def valid_attr?: (keyable attr_name) -> bool

  private

  def get_proc: (keyable attr_name) -> Proc

  class InvalidValueError < StandardError
  end
end