Class: Sfp::SasTranslator::ParameterGrounder

Inherits:
Object
  • Object
show all
Defined in:
lib/sfp/sas_translator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root, map = {}) ⇒ ParameterGrounder

Returns a new instance of ParameterGrounder.



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# File 'lib/sfp/sas_translator.rb', line 1778

def initialize(root, map={})
	@root = root
	@map = map
end

Instance Attribute Details

#map ⇒ Object

Returns the value of attribute map.



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# File 'lib/sfp/sas_translator.rb', line 1776

def map
  @map
end

Instance Method Details

#visit(name, value, obj) ⇒ Object 



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# File 'lib/sfp/sas_translator.rb', line 1783

def visit(name, value, obj)
	return if name[0,1] == '_' and name != '_value' and name != '_template'
	# substituting left side
	if name[0,1] != '_'
		modified = false
		map.each { |k,v|
			#puts k + ',' + name if v.is_a?(Sfp::Undefined) or v.is_a?(Sfp::Unknown)
			next if v.is_a?(Sfp::Undefined) or v.is_a?(Sfp::Unknown)
			if name == k
				obj[v] = value
				obj.delete(name)
				name = v
				value['_self'] = name if value.is_a?(Hash)
				modified = true
				break
			elsif name.length > k.length and name[k.length,1] == '.' and name[0, k.length] == k
				#next if v.is_a?(Sfp::Undefined) or v.is_a?(Sfp::Unknown)
				grounded = v + name[k.length, (name.length-k.length)]
				obj[grounded] = value
				obj.delete(name)
				name = grounded
				value['_self'] = name if value.is_a?(Hash)
				modified = true
				break
			end
		}
	
		if modified and (name =~ /.*\.parent(\..*)?/ )
			parent, last = name.pop_ref
			parent_value = @root.at?(parent)
			raise VariableNotFoundException, parent if parent_value.nil?
			new_name = @root.at?(parent).ref.push(last) if last != 'parent'
			new_name = @root.at?(parent).ref.to_top if last == 'parent'
			obj[new_name] = value
			obj.delete(name)
			name = new_name
			value['_self'] = name if value.is_a?(Hash)
		end
	end
	# TODO ----- HACK! -----
	if obj.is_a?(Hash) and obj.isconstraint and obj['_type'] == 'iterator' and
			value.is_a?(String) and value.isref and map.has_key?(value)
		obj[name] = value = map[value]
		#puts map[value].inspect
		#puts "==>> " + obj.ref.push(name)
	end
	# ------ END of HACK! ----

	# substituting right side
	if value.is_a?(String) and value.isref
		map.each { |k,v|
			if value == k
				obj[name] = v
				break
			elsif value.length > k.length and value[k.length,1] == '.' and value[0,k.length] == k and
			  not(v.is_a?(Sfp::Undefined) or v.is_a?(Sfp::Unknown))
				obj[name] = v + value[k.length, (value.length-k.length)]
				break
			end
		}
	end
	return true
end