From: "John-Mason P. Shackelford" <jpshack@...>
Date: 2005-10-18T02:04:59+09:00
Subject: Re: YAML serialization of exceptions

Comments on the following alternative?

# Add support for serialization
class Exception
	def to_yaml( opts = {} )
		YAML::quick_emit( self.object_id, opts ) { |out|
            out.map( self.to_yaml_type ) { |map|
                map.add( 'message', self.message )
                map.add( 'backtrace', self.backtrace )
				to_yaml_properties.each { |m|
                    map.add( m[1..-1], instance_variable_get( m ) )
                }
            }
		}
	end
end

YAML.add_ruby_type( /^exception/ ) { |type, val|
    type, obj_class = YAML.read_type_class( type, Exception )
    o = YAML.object_maker( obj_class, val )
    val.each_pair { |k,v|
		o.instance_variable_set("@#{k}", v)
	}
	class << o
	 attr_reader :message, :backtrace
	end
	o
}

John-Mason Shackelford

Software Developer
Pearson Educational Measurement

2510 North Dodge St.
Iowa City, IA 52245
ph. 319-354-9200x6214
john-mason.shackelford@pearson.com
http://pearsonedmeasurement.com