Class: NamedParameter::NamedMethod

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(method) ⇒ NamedMethod

Returns a new instance of NamedMethod.



5
6
7
8
9
10
 
# File 'lib/named_parameter/named_method.rb', line 5

def initialize(method)
  method.owner.instance_eval do
    alias_method :"___original_#{method.name}___",method.name.to_sym
  end
  @method = method
end

Instance Attribute Details

#method ⇒ Object

Returns the value of attribute method.



3
4
5
 
# File 'lib/named_parameter/named_method.rb', line 3

def method
  @method
end

Instance Method Details

#errors_when_called_with(args = {}) ⇒ Object 



16
17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/named_parameter/named_method.rb', line 16

def errors_when_called_with(args={})
  errors = []
  errors += Errors::NotHash.all_when self, 
                                     :called_with => args
  if errors.empty?
    errors += Errors::UndefinedParameters.all_when self, 
                                                  :called_with => args
    errors += Errors::RequiredParameters.all_when self, 
                                                  :called_with => args
  end
  errors
end

#have_a_parameter_like?(arg_name) ⇒ Boolean

Returns:

  • (Boolean) 


35
36
37
38
39
 
# File 'lib/named_parameter/named_method.rb', line 35

def have_a_parameter_like?(arg_name)
  @method.parameters.any? do |method_parameter|
    method_parameter[1].to_s == arg_name.to_s
  end
end

#name_of_original ⇒ Object 



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

def name_of_original
  :"___original_#{@method.name}___"
end

#required_parameters ⇒ Object 



29
30
31
32
33
 
# File 'lib/named_parameter/named_method.rb', line 29

def required_parameters
  @method.parameters.collect do |parameter| 
    parameter.last if parameter.first == :req
  end.compact
end