Module: Strict::SuperTypes

Included in:
Strict
Defined in:
lib/supertypes.rb

Constant Summary collapse

@@handlers = 
{}
@@called = 
false

Instance Method Summary collapse

Instance Method Details

#register_default_supertypes! ⇒ Object

must be called from an env including Base



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# File 'lib/supertypes.rb', line 12

def register_default_supertypes! #must be called from an env including Base
  if @@called
    return
  else
    @@called = true
  end

  @@handlers[:string] = proc do |data, context|
    enforce_primitive!(String, data, context)
    if data.is_a? String
      catch_error "#{header(context, data)} can't be empty string" unless (data.size > 0)
    end
  end

  @@handlers[:natural_number] = proc do |data, context|
    enforce_primitive!(Fixnum, data, context)
    catch_error "#{header(context, data)} must be > 0" unless (data > 0) if data.is_a? Fixnum
  end

  @@handlers[:integer] = proc do |data, context|
    enforce_primitive!(Fixnum, data, context)
  end

  @@handlers[:numeric] = proc do |data, context|
    enforce_primitive!(Numeric, data, context)
  end

  @@handlers[:boolean] = proc do |data, context|
    enforce_weak_primitives!([TrueClass, FalseClass], data, context)
  end

  @@handlers[:float] = proc do |data, context|
    enforce_primitive!(Float, data, context)
  end

  @@handlers[:character] = proc do |data, context|
    enforce!(:string, data, context)
    if data.is_a? String
      catch_error "#{header(context, data)} must be a single character!" unless data.size == 1
    end
  end

  @@handlers[:procedure] = proc do |data, context|
    enforce_primitive!(Proc, data, context)
  end

  @@handlers[:hash_map] = proc do |data, context|
    enforce_primitive!(Hash, data, context)
  end

  @@handlers[:hex_color] = proc do |data, context|
    enforce!(:string, data, context)
    if data.is_a? String
      catch_error "#{header(context, data)} must be six characters long" unless (data.size == 6)
      data.upcase.each_byte {|c| catch_error "#{header(context, data)} must contain only hexadecimal characters" unless ((48 <= c  and c <= 57) or (65 <= c and c <= 70))}
    end
  end

  @@handlers[:uri] = proc do |data, context|
    enforce!(:string, data, context)
  end


  @@handlers[:string_array] = proc do |data, context|
    enforce_primitive!(Array, data, context)
    if data.is_a? Array
      data.each {|item| enforce_primitive!(String, item, context)}
    end
  end

  @@handlers[:numeric_array] = proc do |data, context|
    enforce_primitive!(Array, data, context)
    if data.is_a? Array
      data.each {|item| enforce_primitive!(Numeric, item, context)}
    end
  end

  @@handlers[:float_array] = proc do |data, context|
    enforce_primitive!(Array, data, context)
    if data.is_a? Array
      data.each {|item| enforce_primitive!(Float, item, context)}
    end
  end

  @@handlers[:integer_array] = proc do |data, context|
    enforce_primitive!(Array, data, context)
    if data.is_a? Array
      data.each {|item| enforce_primitive!(Fixnum, item, context)}
    end
  end

  @@handlers[:hex_color_array] = proc do |data, context|
    enforce_primitive!(Array, data, context)
    if data.is_a? Array
      data.each {|item| enforce!(:hex_color, item, context)}
    end
  end

  @@handlers[:uri_array] = proc do |data, context|
    enforce_primitive!(Array, data, context)
    if data.is_a? Array
      data.each {|item| enforce!(:uri, item, context)}
    end
  end

  @@handlers.each do |supertype, handler|
    Base::register_supertype(supertype, handler, false) #verbose set to false
  end
end

#registered?(supertype) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/supertypes.rb', line 7

def registered?(supertype)
  enforce_primitive!(Symbol, supertype)
  Strict::Base.has_key? supertype
end