Class: Functionalist::PointFree::Expression

Inherits:
Object
  • Object
show all
Defined in:
lib/functionalist/point_free/expression.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Expression

Returns a new instance of Expression.



8
9
10
 
# File 'lib/functionalist/point_free/expression.rb', line 8

def initialize
  @methods = []
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(*method_and_args, &block) ⇒ Object 



17
18
19
20
 
# File 'lib/functionalist/point_free/expression.rb', line 17

def method_missing(*method_and_args, &block)
  @methods << [method_and_args, block] unless method_and_args == [:respond_to?, :to_proc]
  self
end

Instance Method Details

#queue ⇒ Object 



32
33
34
 
# File 'lib/functionalist/point_free/expression.rb', line 32

def queue 
  @methods
end

#to_proc ⇒ Object 



23
24
25
26
27
28
29
30
 
# File 'lib/functionalist/point_free/expression.rb', line 23

def to_proc
  lambda do |obj|
    reciever, value = @methods.inject(obj) do |left, right|
      Functionalist::PointFree::Operator.caculate(left, right)
    end
    reciever
  end
end