Class: Bake::MergeConfig

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

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(child, parent) ⇒ MergeConfig

Returns a new instance of MergeConfig.



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# File 'lib/bake/mergeConfig.rb', line 7

def initialize(child, parent)
  @child = child
  @parent = parent
end

Class Method Details

.clone(obj) ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 12

def self.clone(obj)
  if obj.is_a?(Metamodel::ModelElement)
    cloneModelElement(obj)
  elsif Array === obj
    obj.map { |o| clone(o) }
  else
    obj # no clone, should not happen
  end
end

.cloneModelElement(obj) ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 22

def self.cloneModelElement(obj)
  cpy = obj.class.new
  cpy.file_name = obj.file_name
  cpy.org_file_name = obj.file_name
  obj.class.ecore.eAllStructuralFeatures.each do |f|
    value = obj.getGeneric(f.name)
    if f.is_a?(RGen::ECore::EReference) && f.containment
      if value.is_a?(Array)
        cpy.setGeneric(f.name, value.collect{|v| clone(v)})
      elsif !value.nil?
        cpy.setGeneric(f.name, clone(value))
      end
    elsif f.is_a?(RGen::ECore::EAttribute)
      cpy.setGeneric(f.name, value) if obj.eIsSet(f.name)
    end
  end
  cpy
end

Instance Method Details

#copyChildToParent(c, p) ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 192

def copyChildToParent(c, p)
  (p.class.ecore.eAllReferences & c.class.ecore.eAllReferences).each do |f|
    next unless f.containment
    childData = c.getGeneric(f.name)
    next if childData.nil? || (Array === childData && childData.empty?)
    p.setGeneric(f.name, childData)
  end
end

#extend(child, parent, push_front) ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 145

def extend(child, parent, push_front)
  if Metamodel::BaseConfig_INTERNAL === child &&
    Metamodel::BaseConfig_INTERNAL ===  parent
    if child.mergeInc != "" && parent.mergeInc != "no"
      parent.mergeInc = child.mergeInc
    end
  end

  (parent.class.ecore.eAllReferences & child.class.ecore.eAllReferences).each do |f|
    next unless f.containment
    parentData = parent.getGeneric(f.name)
    next if parentData.nil? or (Array === parentData && parentData.empty?)
    childData = child.getGeneric(f.name)

    if Array === parentData
      if f.name == "compiler"
        extendedParentData = []
        parentData.each do |p|
          c = childData.find { |c| p.ctype == c.ctype }
          if c
            extendAttributes(c, p)
            extend(c, p, push_front)
            extendedParentData << c
          else
            extendedParentData << p
          end
        end
        restOfChildData = childData.find_all { |c| parentData.find {|p| p.ctype != c.ctype } }
        child.setGeneric(f.name, extendedParentData + restOfChildData)
      else
        if push_front
          child.setGeneric(f.name, childData + parentData)
        else
          child.setGeneric(f.name, parentData + childData)
        end
      end
    elsif Metamodel::ModelElement === parentData
      if childData.nil? || childData.class != parentData.class
        child.setGeneric(f.name, parentData)
      else
        extendAttributes(childData, parentData)
        extend(childData, parentData, push_front)
      end
    end
  end
end

#extendAttributes(childData, parentData) ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 139

def extendAttributes(childData, parentData)
  parentData.class.ecore.eAllAttributes.each do |a|
    childData.setGeneric(a.name, parentData.getGeneric(a.name)) if !childData.eIsSet(a.name) && parentData.eIsSet(a.name)
  end
end

#hasSubNodes(elem) ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 68

def hasSubNodes(elem)
  elem.class.ecore.eAllReferences.each do |f|
    next unless f.containment
    elemData = elem.getGeneric(f.name)
    return true if (Array === elemData && !elemData.empty?)
    return true if (Metamodel::ModelElement === elemData)
  end
  false
end

#merge(type) ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 201

def merge(type)
  if (@child.strict == true) && !(@child.class == @parent.class)
    return
  end

  s = StringIO.new
  ser = RText::Serializer.new(Language)

  if Bake.options.debug
    s.puts "\n>>>> child <<<<"
    ser.serialize(@child, s)
    s.puts "\n>>>> parent <<<<"
    ser.serialize(@parent, s)
  end
  
  if (type == :remove)
    removeChilds(@child, @parent)
  elsif (type == :replace)
    replace
  elsif (type == :extend)
    c = MergeConfig.clone(@child)
    extend(c, @parent, false)
    copyChildToParent(c, @parent)
  elsif (type == :push_front)
    c = MergeConfig.clone(@child)
    extend(c, @parent, true)
    copyChildToParent(c, @parent)
  elsif (type == :merge)
    extend(@child, MergeConfig.clone(@parent), false)
  end

  if Bake.options.debug
    s.puts "\n>>>> result of #{type.to_s} <<<<"
    ser.serialize(type == :merge ? @child : @parent, s)
    puts "#{s.string}"
  end


end

#removeChilds(childElem, parentElem) ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 87

def removeChilds(childElem, parentElem)
  return if childElem.nil? or parentElem.nil?
  
  if Metamodel::BaseConfig_INTERNAL === childElem &&
    Metamodel::BaseConfig_INTERNAL ===  parentElem
    if childElem.mergeInc == parentElem.mergeInc
      parentElem.mergeInc = ""
    end
  end

  childElem.class.ecore.eAllReferences.each do |f|
    next unless f.containment
    begin
      childData = childElem.getGeneric(f.name)
      parentData = parentElem.getGeneric(f.name)
    rescue Exception => ex
      next # how to check fast if f.name is valid?
    end
    next if childData.nil? or parentData.nil?
    if (Array === childData)
      if !parentData.empty? && !childData.empty?
        childData.each do |c|
          cN = hasSubNodes(c)
          toRemove = []
          parentData.each do |p|
            next if p.class != c.class
            if (not cN)
              if sameAttr(c, p)
                toRemove << p
              end
            else
              removeChilds(c, p);
            end
          end
          toRemove.each do |r|
            parentElem.removeGeneric(f.name, r)
          end
        end
      end
    elsif Metamodel::ModelElement === childData
      if parentData.class == childData.class && sameAttr(childData, parentData)
        cN = hasSubNodes(childData)
        if (not cN)
          parentElem.setGeneric(f.name, nil)
        else
          removeChilds(childData, parentData)
        end
      end # otherwise not equal, will not be deleted
    end
  end
end

#replace ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 42

def replace()
  if Metamodel::BaseConfig_INTERNAL === @child &&
    Metamodel::BaseConfig_INTERNAL ===  @parent
    if @child.mergeInc != "" && @parent.mergeInc != "no"
      @parent.mergeInc = @child.mergeInc
    end
  end

  @child.class.ecore.eAllReferences.each do |f|
    next unless @parent.class.ecore.eAllReferences.include?f
    next unless f.containment
    childData = @child.getGeneric(f.name)
    if Metamodel::ModelElement === childData
      @parent.setGeneric(f.name,childData) if !childData.nil?
    elsif Array === childData
      if !childData.empty?
        parentData = @parent.getGeneric(f.name)
        cclasses = childData.map { |c| c.class }.uniq
        parentData.delete_if { |p| cclasses.include?p.class }
        parentData += childData
        @parent.setGeneric(f.name,parentData)
      end
    end
  end
end

#sameAttr(childData, parentData) ⇒ Object 



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# File 'lib/bake/mergeConfig.rb', line 78

def sameAttr(childData, parentData)
  childData.class.ecore.eAllAttributes.all? { |a|
    a.eAnnotations.each do |x| x.details.each do |y|
      return true if (y.key == :internal and y.value == true)
    end; end
    a.name == "line_number" || (not childData.eIsSet(a.name)) || (childData.getGeneric(a.name) == parentData.getGeneric(a.name))
  }
end