The compiler is capable of providing basic implementations for some traits via the #[deriving] attribute. These traits can still be manually implemented if a more complex behavior is required.

{deriving.play}

This is a list of the “derivable” traits:

• Comparison traits: Eq, PartialEq, Ord, PartialOrd
• Serialization: Encodable, Decodable
• Clone, to create T from &T via a copy.
• Hash, to compute a hash from &T.
• Rand, to create a random instance of a data type.
• Default, to create an empty instance of a data type.
• Zero, to create a zero instance of a numeric data type.
• FromPrimitive, to create an instance from a numeric primitive.
• Show, to format a value using the {} formatter.