Module: NullAndVoid::Inflections

Defined in:
lib/null_and_void/inflections.rb

Class Method Summary collapse

Class Method Details

.constantize(camel_cased_word) ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
 
# File 'lib/null_and_void/inflections.rb', line 19

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

  # Trigger a builtin 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 it it's owned
      # directly before we reach Object or the end of ancestors.
      constant = constant.ancestors.inject do |const, ancestor|
        break const    if ancestor == Object
        break ancestor if ancestor.const_defined?(name, false)
        const
      end

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

.deconstantize(path) ⇒ Object 



15
16
17
 
# File 'lib/null_and_void/inflections.rb', line 15

def self.deconstantize(path)
  path.to_s[0, path.rindex('::') || 0] # implementation based on the one in facets' Module#spacename
end

.demodulize(path) ⇒ Object 



6
7
8
9
10
11
12
13
 
# File 'lib/null_and_void/inflections.rb', line 6

def self.demodulize(path)
  path = path.to_s
  if i = path.rindex('::')
    path[(i + 2)..-1]
  else
    path
  end
end