Class: Struct

Inherits:
Object show all
Defined in:
lib/syck/rubytypes.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.yaml_new(klass, tag, val) ⇒ Object


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# File 'lib/syck/rubytypes.rb', line 55

def self.yaml_new( klass, tag, val )
    if Hash === val
        struct_type = nil

        #
        # Use existing Struct if it exists
        #
        props = {}
        val.delete_if { |k,v| props[k] = v if k =~ /^@/ }
        begin
            struct_type = YAML.read_type_class( tag, Struct ).last
        rescue NameError
        end
        if not struct_type
            struct_def = [ tag.split( ':', 4 ).last ]
            struct_type = Struct.new( *struct_def.concat( val.keys.collect { |k| k.intern } ) )
        end

        #
        # Set the Struct properties
        #
        st = YAML::object_maker( struct_type, {} )
        st.members.each do |m|
            st.send( "#{m}=", val[m.to_s] )
        end
        props.each do |k,v|
            st.instance_variable_set(k, v)
        end
        st
    else
        raise YAML::TypeError, "Invalid Ruby Struct: " + val.inspect
    end
end

.yaml_tag_class_nameObject


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# File 'lib/syck/rubytypes.rb', line 53

def self.yaml_tag_class_name; self.name.gsub( "Struct::", "" ); end

.yaml_tag_read_class(name) ⇒ Object


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# File 'lib/syck/rubytypes.rb', line 54

def self.yaml_tag_read_class( name ); "Struct::#{ name }"; end

Instance Method Details

#to_yaml(opts = {}) ⇒ Object


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# File 'lib/syck/rubytypes.rb', line 88

def to_yaml( opts = {} )
       return super unless YAML::ENGINE.syck?
	YAML::quick_emit( self, opts ) do |out|
		#
		# Basic struct is passed as a YAML map
		#
           out.map( taguri, to_yaml_style ) do |map|
			self.members.each do |m|
                   map.add( m.to_s, self[m.to_s] )
               end
			self.to_yaml_properties.each do |m|
                   map.add( m, instance_variable_get( m ) )
               end
           end
       end
end