Please, how to add a package name into mixin?

[Anton-Latukha]

For example, the main way to setup relude is:
(in the form of Cabal specification):

 mixins:
    base hiding (Prelude)
  , relude (Relude as Prelude)
  , relude

Full example:

  build-depends:
      base
    , relude

  mixins:
      base hiding (Prelude)
    , relude (Relude as Prelude)
    , relude

---

HPack allows to:

  - name: base
    mixin:
      - hiding (Prelude)
  - name: relude
    mixin:
      - (Relude as Prelude)

But into Cabal it gets translated as:

  build-depends:
    - relude

  mixins:
      base hiding (Prelude)
    , relude (Relude as Prelude)

Which has unexpected behavior - any modules except main Relude module from the tree of relude modules can not be imported.

If only there was a documented way, or if I knew the way to do something like:

  - name: base
    mixin:
      - hiding (Prelude)
  - name: relude
    mixin:
      - (Relude as Prelude)
      - 
      # (or)
      - relude
      # (or)
    - mixin

To put that - relude the second time - it all seems to work fine then if that gets possible.

[philderbeast]

@Anton-Latukha I'm doing something similar with ghc-corroborate. Adding a hiding () item could get you what you want.

-- package.dhall
                , dependencies =
                  [ { name = "ghc"
                    , version = ">=8.0 && <8.2"
                    , mixin =
                      [ "hiding ()"
                      , "(TcRnTypes as TcRnTypes)"
                      , "(Type as Type)"
                      , "(TcRnTypes as Constraint)"
                      , "(Type as Predicate)"
                      ]
                    }
                  ]

# generated from package.dhall with "dhall-hpack-yaml > package.yaml"
    dependencies:
    - name: ghc
      version: '>=8.0 && <8.2'
      mixin:
      - hiding ()
      - (TcRnTypes as TcRnTypes)
      - (Type as Type)
      - (TcRnTypes as Constraint)
      - (Type as Predicate)

-- generated ghc-corroborate.cabal with "dhall-hpack-cabal"
    build-depends:
        ghc >=8.0 && <8.2
    mixins:
        ghc hiding ()
      , ghc (TcRnTypes as TcRnTypes)
      , ghc (Type as Type)
      , ghc (TcRnTypes as Constraint)
      , ghc (Type as Predicate)

[philderbeast]

I tried adding an empty string entry and this adds the dependency to the mix as-is.

# package.yaml
    dependencies:
    - name: ghc
      version: '>=8.0 && <8.2'
      mixin:
      - ''

-- generated ghc-corroborate.cabal
    build-depends:
        ghc >=8.0 && <8.2
    mixins:
        ghc