Module: Low::TypeAccessors

Defined in:
lib/definitions/type_accessors.rb

Overview

Usage:

type_accessor name: String # => @name getter and @name=() setter type_accessor name: String | 'Cher'

type_reader name: String type_reader name: String | 'Cher' # defaults to 'Cher' if nil

type_writer name: String type_writer name: String | nil # accepts String or nil

Instance Method Summary collapse

Instance Method Details

#type_accessor(named_expressions) ⇒ Object 



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# File 'lib/definitions/type_accessors.rb', line 59

def type_accessor(named_expressions)
  named_expressions.each do |name, expression|
    type_reader({ name => expression })
    type_writer({ name => expression })
  end
end

#type_reader(named_expressions) ⇒ Object 



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# File 'lib/definitions/type_accessors.rb', line 20

def type_reader(named_expressions)
  named_expressions.each do |name, exp|
    last_caller = caller_locations(1, 1).first

    file_path = last_caller.path
    scope = "#{self}##{name}"

    expression = cast_type_expression(exp)
    # Source usually defined on file load with access to lines in a source file, but type accessors are defined on class load.
    source = ::Lowkey::Source.new(file_path:, scope:, lines: [], start_line: last_caller.lineno, end_line: last_caller.lineno)
    proxy = ::Lowkey::ReturnProxy.new(name:, source:, expression:)

    define_method(name) do
      value = instance_variable_get("@#{name}")
      expression.validate!(value:, proxy:)
      value
    end
  end
end

#type_writer(named_expressions) ⇒ Object 



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# File 'lib/definitions/type_accessors.rb', line 40

def type_writer(named_expressions)
  named_expressions.each do |name, expression|
    last_caller = caller_locations(1, 1).first

    file_path = last_caller.path
    scope = "#{self}##{name}"

    expression = cast_type_expression(expression)
    # Source usually defined on file load with access to lines in a source file, but type accessors are defined on class load.
    source = ::Lowkey::Source.new(file_path:, scope:, lines: [], start_line: last_caller.lineno, end_line: last_caller.lineno)
    proxy = ::Lowkey::ParamProxy.new(name:, source:, type: :pos_req, position: nil, expression:)

    define_method("#{name}=") do |value|
      expression.validate!(value:, proxy:)
      instance_variable_set("@#{name}", value)
    end
  end
end