Class: RGen::ECore::ECoreToRuby

Inherits:
Object
  • Object
show all
Defined in:
lib/rgen/ecore/ecore_to_ruby.rb

Defined Under Namespace

Classes: FeatureWrapper

Instance Method Summary collapse

Constructor Details

#initialize ⇒ ECoreToRuby

Returns a new instance of ECoreToRuby.



9
10
11
12
13
14
 
# File 'lib/rgen/ecore/ecore_to_ruby.rb', line 9

def initialize
  @modules = {}
  @classifiers = {}
  @features_added = {}
  @in_create_module = false
end

Instance Method Details

#add_features(eclass) ⇒ Object 



129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
 
# File 'lib/rgen/ecore/ecore_to_ruby.rb', line 129

def add_features(eclass)
  return false if @features_added[eclass]
  c = @classifiers[eclass]
  eclass.eStructuralFeatures.each do |f|
    w1 = FeatureWrapper.new(f, @classifiers) 
    w2 = FeatureWrapper.new(f.eOpposite, @classifiers) if f.is_a?(RGen::ECore::EReference) && f.eOpposite
    c.module_eval do
      if w1.many?
        _build_many_methods(w1, w2)
      else
        _build_one_methods(w1, w2)
      end
    end
  end
  @features_added[eclass] = true
  eclass.eSuperTypes.each do |t|
    add_features(t)
  end
  true
end

#create_class(eclass) ⇒ Object 



47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
 
# File 'lib/rgen/ecore/ecore_to_ruby.rb', line 47

def create_class(eclass)
  return @classifiers[eclass] if @classifiers[eclass]

  c = Class.new(super_class(eclass)) do
    abstract if eclass.abstract
    class << self
      attr_accessor :_ecore_to_ruby
    end
  end
  class << eclass
    attr_accessor :instanceClass
    def instanceClassName
      instanceClass.to_s
    end
  end
  eclass.instanceClass = c
  c::ClassModule.module_eval do
    alias _method_missing method_missing
    def method_missing(m, *args)
      if self.class._ecore_to_ruby.add_features(self.class.ecore)
        send(m, *args)
      else
        _method_missing(m, *args)
      end
    end
    alias _respond_to respond_to?
    def respond_to?(m, include_all=false)
      self.class._ecore_to_ruby.add_features(self.class.ecore)
      _respond_to(m)
    end
  end
  @classifiers[eclass] = c
  c._set_ecore_internal(eclass)
  c._ecore_to_ruby = self

  create_module(eclass.ePackage).const_set(eclass.name, c)
  c
end

#create_enum(eenum) ⇒ Object 



86
87
88
89
90
91
92
93
94
 
# File 'lib/rgen/ecore/ecore_to_ruby.rb', line 86

def create_enum(eenum)
  return @classifiers[eenum] if @classifiers[eenum]

  e = RGen::MetamodelBuilder::DataTypes::Enum.new(eenum.eLiterals.collect{|l| l.name.to_sym})
  @classifiers[eenum] = e

  create_module(eenum.ePackage).const_set(eenum.name, e)
  e
end

#create_module(epackage) ⇒ Object 



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
 
# File 'lib/rgen/ecore/ecore_to_ruby.rb', line 16

def create_module(epackage)
  return @modules[epackage] if @modules[epackage]
  
  top = (@in_create_module == false)
  @in_create_module = true

  m = Module.new do
    extend RGen::MetamodelBuilder::ModuleExtension
  end
  @modules[epackage] = m

  epackage.eSubpackages.each{|p| create_module(p)}
  m._set_ecore_internal(epackage)

  create_module(epackage.eSuperPackage).const_set(epackage.name, m) if epackage.eSuperPackage

  # create classes only after all modules have been created
  # otherwise classes may be created multiple times
  if top
    epackage.eAllClassifiers.each do |c| 
      if c.is_a?(RGen::ECore::EClass)
        create_class(c)
      elsif c.is_a?(RGen::ECore::EEnum)
        create_enum(c)
      end
    end
    @in_create_module = false
  end
  m
end

#super_class(eclass) ⇒ Object 



150
151
152
153
154
155
156
157
158
159
160
 
# File 'lib/rgen/ecore/ecore_to_ruby.rb', line 150

def super_class(eclass)
  super_types = eclass.eSuperTypes
  case super_types.size
  when 0
    RGen::MetamodelBuilder::MMBase
  when 1
    create_class(super_types.first)
  else
    RGen::MetamodelBuilder::MMMultiple(*super_types.collect{|t| create_class(t)})
  end
end