Class: Loom::MethodSignature

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

Overview

Used to analyze the arguments of a method.

Defined Under Namespace

Modules: ParamType Classes: MatchSpec

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(proc_or_method) ⇒ MethodSignature

Returns a new instance of MethodSignature.

Parameters:

  • proc_or_method (#parameters) —

    A Proc or Method



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# File 'lib/loom/method_signature.rb', line 17

def initialize(proc_or_method)
  @parameter_list = proc_or_method.parameters
  @req_args = find_by_type ParamType::REQ
  @opt_args = find_by_type ParamType::OPT
  @rest_args = find_by_type ParamType::REST
  @keyreq_args = find_by_type ParamType::KEYREQ
  @key_args = find_by_type ParamType::KEY
  @keyrest_args = find_by_type ParamType::KEYREST
  @block_args = find_by_type ParamType::BLOCK
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(name, *args) ⇒ Object

Defines has_xyz_args? methods for each ParamType.



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# File 'lib/loom/method_signature.rb', line 36

def method_missing(name, *args)
  match_data = name.to_s.match /^has_([^?]+)_args\?$/
  if match_data
    method = "%s_args" % [match_data[1]]
    !self.send(method.to_sym).empty?
  else
    super name, *args
  end
end

Instance Attribute Details

#block_args ⇒ Object (readonly)

Returns the value of attribute block_args.



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# File 'lib/loom/method_signature.rb', line 28

def block_args
  @block_args
end

#key_args ⇒ Object (readonly)

Returns the value of attribute key_args.



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# File 'lib/loom/method_signature.rb', line 28

def key_args
  @key_args
end

#keyreq_args ⇒ Object (readonly)

Returns the value of attribute keyreq_args.



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# File 'lib/loom/method_signature.rb', line 28

def keyreq_args
  @keyreq_args
end

#keyrest_args ⇒ Object (readonly)

Returns the value of attribute keyrest_args.



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# File 'lib/loom/method_signature.rb', line 28

def keyrest_args
  @keyrest_args
end

#opt_args ⇒ Object (readonly)

Returns the value of attribute opt_args.



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# File 'lib/loom/method_signature.rb', line 28

def opt_args
  @opt_args
end

#req_args ⇒ Object (readonly)

Returns the value of attribute req_args.



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# File 'lib/loom/method_signature.rb', line 28

def req_args
  @req_args
end

#rest_args ⇒ Object (readonly)

Returns the value of attribute rest_args.



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# File 'lib/loom/method_signature.rb', line 28

def rest_args
  @rest_args
end

Instance Method Details

#find_by_type(type) ⇒ Object 



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# File 'lib/loom/method_signature.rb', line 31

def find_by_type(type)
  @parameter_list.find_all { |tuple| tuple.first == type }
end