lib.setFunctionArgs

Add metadata about expected function arguments to a function. The metadata should match the format given by builtins.functionArgs, i.e. a set from expected argument to a bool representing whether that argument has a default or not.

This function is necessary because you can't dynamically create a function of the { a, b ? foo, ... }: format, but some facilities like callPackage expect to be able to query expected arguments.

Type

setFunctionArgs : (a -> b) -> Map String Bool -> (a -> b)

Inputs

f

1. Function argument

args

2. Function argument

Noogle detected

• lib.trivial.setFunctionArgs

setFunctionArgs = f: args: {
    # TODO: Should we add call-time "type" checking like built in?
    __functor = self: f;
    __functionArgs = args;
  };