Module: Eco::Language::Klass::Resolver

Included in:
AutoLoader, Builder, HelpersBuilt
Defined in:
lib/eco/language/klass/resolver.rb

Instance Method Summary collapse

Instance Method Details

#class_resolver(name, klass) ⇒ Object

Note:

the method is defined at instance and class level.

Creates a class and instance object methods with name name to resolve klass name



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# File 'lib/eco/language/klass/resolver.rb', line 6

def class_resolver(name, klass)
  define_singleton_method(name) { resolve_class(klass) }
  define_method(name)           { self.class.resolve_class(klass) }
end

#resolve_class(klass, source_class: self, exception: true) ⇒ Class

Note:

it caches the resolved klasses

Class resolver With given a klass name it resolves to an actual Class

Raises:

  • (Exception) —

    when could not resolve if exception is true



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# File 'lib/eco/language/klass/resolver.rb', line 19

def resolve_class(klass, source_class: self, exception: true)
  @resolved        ||= {}
  @resolved[klass] ||=
    case klass
    when Class
      klass
    when String
      begin
        Kernel.const_get(klass)
      rescue NameError
        raise if exception
      end
    when Symbol
      source_class.resolve_class(source_class.send(klass))
    when Hash
      referrer, referred = klass.first
      resolve_class(
        referred,
        source_class: referrer,
        exception:    exception
      )
    else
      raise "Unknown class: #{klass}" if exception
    end
end