Module: ProxyRb::EventBus::NameResolver::ResolveHelpers

Included in:
StringResolver, SymbolResolver
Defined in:
lib/proxy_rb/event_bus/name_resolver.rb

Overview

Helpers for Resolvers

Instance Method Summary collapse

Instance Method Details

#camel_case(underscored_name) ⇒ Object 



13
14
15
16
17
18
19
 
# File 'lib/proxy_rb/event_bus/name_resolver.rb', line 13

def camel_case(underscored_name)
  if RUBY_VERSION < '1.9.3'
    underscored_name.to_s.split('_').map { |word| word.upcase.chars.to_a[0] + word.chars.to_a[1..-1].join }.join
  else
    underscored_name.to_s.split('_').map { |word| word.upcase[0] + word[1..-1] }.join
  end
end

#constantize(camel_cased_word) ⇒ Object

Thanks ActiveSupport (Only needed to support Ruby 1.9.3 and JRuby) rubocop:disable Metrics/CyclomaticComplexity rubocop:disable Metrics/PerceivedComplexity



25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
 
# File 'lib/proxy_rb/event_bus/name_resolver.rb', line 25

def constantize(camel_cased_word)
  names = camel_cased_word.split('::')

  # Trigger a built-in NameError exception including the ill-formed constant in the message.
  Object.const_get(camel_cased_word) if names.empty?

  # Remove the first blank element in case of '::ClassName' notation.
  names.shift if names.size > 1 && names.first.empty?

  names.inject(Object) do |constant, name|
    if constant == Object
      constant.const_get(name)
    else
      candidate = constant.const_get(name)

      next candidate if constant.const_defined?(name, false)

      next candidate unless Object.const_defined?(name)

      # Go down the ancestors to check if it is owned directly. The check
      # stops when we reach Object or the end of ancestors tree.
      # rubocop:disable Style/EachWithObject
      constant = constant.ancestors.inject do |const, ancestor|
        break const    if ancestor == Object
        break ancestor if ancestor.const_defined?(name, false)
        const
      end
      # rubocop:enable Style/EachWithObject

      # owner is in Object, so raise
      constant.const_get(name, false)
    end
  end
end