Relation statements are similar to columns in SQL tables. This can be overridden with ? in the type constraint. It means types by default cannot be null. Null safety does not mean null does not exist in the language. Also note that Rune now supports null safety. This is because we didn't just killĪbel, we destroyed Abel, and this caused all of Abel's children to be Note that Abel and Malory are not listed. Malory = Human ( "Malory", alice, abel ) Relation DoublyLinked Human :" Father" Human :" Fathered" cascade See // builtin/doublylinked.rn relation DoublyLinked Human :" Mother" Human :" Mothered" cascade (In other words, manual invalidation of pointers is not required) // // This ability is also provided by code transformers. // The "cascade" keyword means that when a Human is destroyed, all of // its children are recursively destroyed. They are used to define the relationships between data-structures. func checkMac( macSecret: secret( string), message: string, mac: string) - > bool // Relation statements are similar to " Foreign Key" constraints in SQL. It ensures the message has not // been modified, and was sent by someone who knows `macSecret`. A MAC is derived // from a hash over the `macSecret` and message. Check the MAC (message authentication code) for a message. (This can present footguns in many languages, but it is trivial in Rune)Ĭonsider the following example for treatment of secrets:.A more complex example of a data-structure with nullable, self-referential recursive references.A simple example of a secret type, and how it can be used to protect against timing attacks.Let's take a look at two examples that showcase many of the unique features of Rune: Highly-optimized C code which outperforms e.g., the C++ STL given a declarativeĭescription of data-structures and relationships between them. DataDraw is a code-generation tool that generates It provides many of its features by deeply integrating features similar to theĬonstructs of the language. Than C++ for most memory-intensive applications, due to its Structure-of-Array Memory safety, and constant-time processing of secrets. Rune is a Python-inspired efficient systems programming language designed to
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