Module: Dslify::InstanceMethods

Defined in:
lib/dslify/dslify.rb

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(m, *a, &block) ⇒ Object

instance_eval <<-EOM 

def #{meth}(n=nil)
  puts "called #{meth}(\#\{n\}) from \#\{self\}"
  n ? (__h[:#{meth}] = n) : __h[:#{meth}]
end
def #{meth}=(n)
  __h[:#{meth}] = n
end

EOM



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# File 'lib/dslify/dslify.rb', line 36

def method_missing(m,*a,&block)
  if block
    if a.empty?
      (a[0].class == self.class) ? a[0].instance_eval(&block) : super
    else
      inst = a[0]
      inst.instance_eval(&block)
      dsl_options[m] = inst
    end
  else
    if a.empty?          
      if dsl_options.has_key?(m)
        dsl_options[m]
      elsif m.to_s.index("?") == (m.to_s.length - 1)
        if options.has_key?(val = m.to_s.gsub(/\?/, '').to_sym)
          options[val] != false
        else
          false
        end
      else
        if self.class.superclass.respond_to?(:default_options) && self.class.superclass.default_options.has_key?(m)
          self.class.superclass.default_options[m]
        elsif ((respond_to? :parent) && (parent != self))
          parent.send m, *a, &block
        else
          super
        end
      end
    else
      clean_meth = m.to_s.gsub(/\=/,"").to_sym
      dsl_options[clean_meth] = (a.size > 1 ? a : a[0])
    end
  end
end

Instance Method Details

#add_method(meth) ⇒ Object 



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# File 'lib/dslify/dslify.rb', line 25

def add_method(meth)
  # instance_eval <<-EOM        
  #   def #{meth}(n=nil)
  #     puts "called #{meth}(\#\{n\}) from \#\{self\}"
  #     n ? (__h[:#{meth}] = n) : __h[:#{meth}]
  #   end
  #   def #{meth}=(n)
  #     __h[:#{meth}] = n
  #   end
  # EOM
end

#default_dsl_options ⇒ Object 



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# File 'lib/dslify/dslify.rb', line 10

def default_dsl_options;self.class.default_options;end

#dsl_options(hsh = {}) ⇒ Object Also known as: options 



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# File 'lib/dslify/dslify.rb', line 11

def dsl_options(hsh={})
  @dsl_options ||= default_dsl_options.merge(hsh)
end

#set_vars_from_options(h, contxt = self) ⇒ Object 



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# File 'lib/dslify/dslify.rb', line 15

def set_vars_from_options(h, contxt=self)
  h.each do |k,v| 
    if contxt.respond_to?(k.to_sym)
      contxt.send k.to_sym, v 
    else
      clean_meth = k.to_s.gsub(/\=/,"").to_sym
      dsl_options[clean_meth] = v
    end        
  end
end