Class: OpenCascade

Class | OpenCascade
In: | lib/more/facets/opencascade.rb
Parent: | OpenObject

# OpenCascade

OpenCascade is subclass of OpenObject. It differs in a few significant ways.

The main reason this class is labeled "cascade", every internal Hash is transformed into an OpenCascade dynamically upon access. This makes it easy to create "cascading" references.

      h = { :x => { :y => { :z => 1 } } }
      c = OpenCascade[h]
      c.x.y.z  #=> 1

As soon as you access a node it automatically becomes an OpenCascade.

      c = OpenCascade.new   #=> #<OpenCascade:0x7fac3680ccf0 {}>
      c.r                   #=> #<OpenCascade:0x7fac368084c0 {}>
      c.a.b                 #=> #<OpenCascade:0x7fac3680a4f0 {}>

But if you set a node, then that will be it‘s value.

      c.a.b = 4             #=> 4

To query a node without causing the auto-creation of an OpenCasade object, use the ?-mark.

      c.a.z?                #=> nil

Finally, you can set a node and get the reciever back using the !-mark.

      c = OpenCascade.new   #=> #<OpenCascade:0x7fac3680ccf0 {}>
      c.x!(4).y!(3)         #=> #<OpenCascade:0x7fac3680ccf0 {:x=>4, :y=>3}>

### Methods

method_missing

### Public Instance methods

method_missing( sym, arg=nil )

[Source]

    # File lib/more/facets/opencascade.rb, line 70
      def method_missing( sym, arg=nil )
        type = sym.to_s[-1,1]
        name = sym.to_s.gsub(/[=!?]$/, '').to_sym
        if type == '='
          self[name] = arg
        elsif type == '!'
          self[name] = arg
          self
        elsif type == '?'
          self[name]
        else
          if val = self[name]
            if Hash === val
              self[name] = self.class.new(val)
            else
              self[name]
            end
          else
            self[name] = self.class.new
          end
        end
      end

[Validate]