Module: ROM::AutoCurry

Defined in:
lib/rom/support/auto_curry.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.extended(klass) ⇒ Object 



3
4
5
6
7
8
9
 
# File 'lib/rom/support/auto_curry.rb', line 3

def self.extended(klass)
  klass.define_singleton_method(:method_added) do |name|
    return if auto_curry_busy?
    auto_curry_guard { auto_curry(name) }
    super(name)
  end
end

Instance Method Details

#auto_curried_methods ⇒ Object 



22
23
24
 
# File 'lib/rom/support/auto_curry.rb', line 22

def auto_curried_methods
  @__auto_curried_methods__ ||= []
end

#auto_curry(name, &block) ⇒ Object 



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
 
# File 'lib/rom/support/auto_curry.rb', line 26

def auto_curry(name, &block)
  arity = instance_method(name).arity

  return if private_instance_methods.include?(name) || arity == 0

  mod = Module.new

  mod.module_eval do
    define_method(name) do |*args|
      response =
        if arity < 0 || arity == args.size
          super(*args)
        else
          self.class.curried.new(self, name: name, curry_args: args, arity: arity)
        end

      if block
        response.instance_exec(&block)
      else
        response
      end
    end
  end

  auto_curried_methods << name

  prepend(mod)
end

#auto_curry_busy? ⇒ Boolean

Returns:

  • (Boolean) 


18
19
20
 
# File 'lib/rom/support/auto_curry.rb', line 18

def auto_curry_busy?
  @__auto_curry_busy__ ||= false
end

#auto_curry_guard ⇒ Object 



11
12
13
14
15
16
 
# File 'lib/rom/support/auto_curry.rb', line 11

def auto_curry_guard
  @__auto_curry_busy__ = true
  yield
ensure
  @__auto_curry_busy__ = false
end