Class: YARD::Handlers::Ruby::MethodHandler

Inherits:
Base
  • Object
show all
Defined in:
lib/yard/handlers/ruby/method_handler.rb

Overview

Handles a method definition

Constant Summary

Constant Summary

Constants included from CodeObjects

CodeObjects::BUILTIN_ALL, CodeObjects::BUILTIN_CLASSES, CodeObjects::BUILTIN_EXCEPTIONS, CodeObjects::BUILTIN_EXCEPTIONS_HASH, CodeObjects::BUILTIN_MODULES, CodeObjects::CONSTANTMATCH, CodeObjects::CSEP, CodeObjects::CSEPQ, CodeObjects::ISEP, CodeObjects::ISEPQ, CodeObjects::METHODMATCH, CodeObjects::METHODNAMEMATCH, CodeObjects::NAMESPACEMATCH, CodeObjects::NSEP, CodeObjects::NSEPQ

Instance Attribute Summary

Attributes inherited from Base

#namespace, #owner, #parser, #scope, #statement, #visibility

Instance Method Summary (collapse)

Methods inherited from Base

handles?, meta_type, method_call, #parse_block

Methods included from Parser::Ruby

#s

Methods inherited from Base

clear_subclasses, #ensure_loaded!, handlers, handles, handles?, #initialize, namespace_only, namespace_only?, #parse_block, process, #push_state, #register, subclasses

Constructor Details

This class inherits a constructor from YARD::Handlers::Base

Instance Method Details

- (Object) format_args(args) 



68
69
70
71
72
73
74
75
76
77
 
# File 'lib/yard/handlers/ruby/method_handler.rb', line 68

def format_args(args)
  args = args.jump(:params)
  params = []
  params += args.required_params.map {|a| [a.source, nil] } if args.required_params
  params += args.optional_params.map {|a| [a[0].source, a[1].source] } if args.optional_params
  params << ["*" + args.splat_param.source, nil] if args.splat_param
  params += args.required_end_params.map {|a| [a.source, nil] } if args.required_end_params
  params << ["&" + args.block_param.source, nil] if args.block_param
  params
end

- (Object) method_signature(method_name) 



79
80
81
82
83
84
85
 
# File 'lib/yard/handlers/ruby/method_handler.rb', line 79

def method_signature(method_name)
  if statement[1]
    "def #{method_name}(#{statement[1].jump(:params).source})"
  else
    "def #{method_name}"
  end
end

- (Object) process

Main processing callback



5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
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
54
55
56
57
58
59
60
61
62
63
64
65
66
 
# File 'lib/yard/handlers/ruby/method_handler.rb', line 5

process do
  nobj = namespace
  mscope = scope
  if statement.type == :defs
    if statement[0][0].type == :ident
      raise YARD::Parser::UndocumentableError, 'method defined on object instance'
    end
    meth = statement[2][0]
    nobj = P(namespace, statement[0].source) if statement[0][0].type == :const
    args = format_args(statement[3])
    blk = statement[4]
    mscope = :class
  else
    meth = statement[0][0]
    args = format_args(statement[1])
    blk = statement[2]
  end
  
  obj = register MethodObject.new(nobj, meth, mscope) do |o| 
    o.visibility = visibility 
    o.source = statement.source
    o.signature = method_signature(meth)
    o.explicit = true
    o.parameters = args
  end
  if mscope == :instance && meth == "initialize"
    unless obj.has_tag?(:return)
      obj.docstring.add_tag(YARD::Tags::Tag.new(:return, 
        "a new instance of #{namespace.name}", namespace.name.to_s))
    end
  elsif mscope == :class && obj.docstring.blank? && %w(inherited included 
      extended method_added method_removed method_undefined).include?(meth)
    obj.docstring.add_tag(YARD::Tags::Tag.new(:private, nil))
  elsif meth.to_s =~ /\?$/
    if obj.tag(:return) && (obj.tag(:return).types || []).empty?
      obj.tag(:return).types = ['Boolean']
    elsif obj.tag(:return).nil?
      obj.docstring.add_tag(YARD::Tags::Tag.new(:return, "", "Boolean"))
    end
  end
  
  if obj.has_tag?(:option)
    # create the options parameter if its missing
    obj.tags(:option).each do |option|
      expected_param = option.name
      unless obj.tags(:param).find {|x| x.name == expected_param }
        new_tag = YARD::Tags::Tag.new(:param, "a customizable set of options", "Hash", expected_param)
        obj.docstring.add_tag(new_tag)
      end
    end
  end
  
  if info = obj.attr_info
    if meth.to_s =~ /=$/ # writer
      info[:write] = obj if info[:read]
    else
      info[:read] = obj if info[:write]
    end
  end
  
  parse_block(blk, :owner => obj) # mainly for yield/exceptions
end