Module tvix_eval::builtins

This module implements the builtins exposed in the Nix language.

See //tvix/eval/docs/builtins.md for a some context on the available builtins in Nix.

Modules

• hash 🔒
• impure 🔒
• placeholder_builtins 🔒
• pure_builtins 🔒
• to_xml 🔒
  This module implements builtins.toXML, which is a serialisation of value information as well as internal tvix state that several things in nixpkgs rely on.
• versions 🔒

Constants

• CURRENT_PLATFORM

Functions

• bgc_insert_key 🔒
  Internal helper function for genericClosure, determining whether a value has been seen before.
• coerce_value_to_path
  Coerce a Nix Value to a plain path, e.g. in order to access the file it points to via either builtins.toPath or an impure builtin. This coercion can never be performed in a Nix program without using builtins (i.e. the trick path: /. + path to convert from a string to a path wouldn’t hit this code).
• impure_builtins
  Return all impure builtins, that is all builtins which may perform I/O outside of the VM and so cannot be used in all contexts (e.g. WASM).
• placeholders
• pure_builtins
  The set of standard pure builtins in Nix, mostly concerned with data structure manipulation (string, attrs, list, etc. functions).