Class: Function

Inherits:
Object
  • Object
show all
Defined in:
lib/function.rb

Overview

The Functon module provides python-like functions to ruby.

Instance Method Summary collapse

Constructor Details

#initialize(&block) ⇒ Function

Like Proc, you pass a block to new.



17
18
19
20
 
# File 'lib/function.rb', line 17

def initialize(&block)
  @block = block
  super()
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(meth, *args, &block) ⇒ Object

This allows one to set new attributes so long as you do so using ‘=’.



24
25
26
27
28
29
30
31
 
# File 'lib/function.rb', line 24

def method_missing(meth, *args, &block)
  if meth.to_s =~ /^.+=$/
    self.class.send(:attr_accessor,meth.to_s.gsub(/=/,'').to_sym)
    return self.send(meth, *args, &block)
  else
    super
  end
end

Instance Method Details

#call(*args) ⇒ Object Also known as: []

Supposed to quack like Proc here. However, note how it uses instance_exec, which sets the scope to the class instance.



12
13
14
 
# File 'lib/function.rb', line 12

def call(*args)
  self.instance_exec(*args, &@block)
end

#respond_to?(meth, include_private = false) ⇒ Boolean

Modified to agree with method_missing.

Returns:

  • (Boolean) 


34
35
36
 
# File 'lib/function.rb', line 34

def respond_to?(meth, include_private = false)
  meth.to_s =~ /^.+=$/ || super
end