fn::final

The fn::final built-in function marks a value as final, preventing child environments from overriding it. If a child environment attempts to override a final value, the value is not overridden and a validation warning is raised.

Declaration

fn::final: value

Parameters

Returns

The original value, marked as final so that it cannot be overridden by child environments.

Example

Parent environment (myproj/parent)

values:
  frozen:
    fn::final: frozen_value
  not_final: plain_value

Child environment (myproj/child)

imports:
  - myproj/parent
values:
  frozen: overridden    # Warning, cannot override final value
  not_final: new_value  # OK

Evaluated result

{
  "frozen": "frozen_value",
  "not_final": "new_value"
}