method

yaml_new

Ruby latest stable (v2_5_5) - 1 note - Class: String

1_8_6_287 (0)
1_8_7_72 (0)
1_8_7_330 (0)
1_9_1_378 (0)
1_9_2_180
1_9_3_125
1_9_3_392
2_1_10
2_2_9
2_4_6
2_5_5
2_6_3
What's this?

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v1_9_1_378) is shown here.

yaml_new( klass, tag, val ) public

No documentation

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# File lib/yaml/rubytypes.rb, line 148
    def String.yaml_new( klass, tag, val )
        val = val.unpack("m")[0] if tag == "tag:yaml.org,2002:binary"
        val = { 'str' => val } if String === val
        if Hash === val
            s = klass.allocate
            # Thank you, NaHi
            String.instance_method(:initialize).
                  bind(s).
                  call( val.delete( 'str' ) )
            val.each { |k,v| s.instance_variable_set( k, v ) }
            s
        else
            raise YAML::TypeError, "Invalid String: " + val.inspect
        end
    end

February 5, 2009

1 thank

Weird method...

Takes three params:

- a Class constant (has to be an existing class)
- a "tag" param that, if set to "tag:yaml.org,2002:binary" will call unpack("m") on the third parameter, val; any other values for tag are ignored
- val can be a Hash or a String; if it's a string it is wrapped in a hash {'str' => val}, other wise...

an instance of klass is allocated
an instance of string is initialized, with the val parameter, and bound to the class context
for each key in val (if any!), set instance variables in the instantiated class

So, what does this method do, a part from making my eyes hurt? It loads a yaml file and instantiates a class and sets the ivars found in the yaml file. Sorta.

It is probably the worst code I have ever seen in the ruby standard libs. WTF!!

yaml_new

Related methods

Method deprecated or moved

No documentation

Weird method...

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