Class: Spade::Runtime::Exports

Inherits:
Object
  • Object
show all
Defined in:
lib/spade/runtime/exports.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ctx) ⇒ Exports

Returns a new instance of Exports.



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# File 'lib/spade/runtime/exports.rb', line 25

def initialize(ctx)
  @context = ctx
end

Instance Attribute Details

#context ⇒ Object (readonly)

Returns the value of attribute context.



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# File 'lib/spade/runtime/exports.rb', line 23

def context
  @context
end

Instance Method Details

#[](name) ⇒ Object 



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# File 'lib/spade/runtime/exports.rb', line 29

def [](name)
  
  begin
    if self.class.const_defined?(name)
      ret = self.class.const_get(name)
      
      # If we are returning a class, create a custom subclass the first 
      # time that also exposes the current context.
      if ret.instance_of? Class
        @klass_cache ||= {}
        unless @klass_cache[name]

          proc1 = proc { @context } 
          @klass_cache[name] = Class.new(ret) do
            
            @context = proc1.call

            def self.context
              @context
            end
            
          end

        end
        
        @klass_cache[name]
      else
        ret
      end
        
    else
      yield
    end
    
  rescue NameError => e
    yield
  end
end