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|
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE DerivingStrategies #-}
{-# LANGUAGE FlexibleContexts #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE GADTs #-}
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE OverloadedLabels #-}
{-# LANGUAGE PartialTypeSignatures #-}
{-# LANGUAGE QuasiQuotes #-}
{-# LANGUAGE StandaloneDeriving #-}
{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE TypeFamilies #-}
{-# LANGUAGE UndecidableInstances #-}
{-# OPTIONS_GHC -Wname-shadowing -Werror=name-shadowing #-}
module Database.Persist.TH.OverloadedLabelSpec where
import TemplateTestImports
mkPersist sqlSettings [persistUpperCase|
User
name String
age Int
Dog
userId UserId
name String
age Int
Organization
name String
Student
userId UserId
departmentName String
Primary userId
|]
spec :: Spec
spec = describe "OverloadedLabels" $ do
it "works for monomorphic labels" $ do
let UserName = #name
OrganizationName = #name
DogName = #name
compiles
it "works for polymorphic labels" $ do
let name :: _ => EntityField rec a
name = #name
UserName = name
OrganizationName = name
DogName = name
compiles
it "works for id labels" $ do
let UserId = #id
orgId = #id :: EntityField Organization OrganizationId
compiles
it "works for Primary labels" $ do
let StudentId = #id
studentId = #id :: EntityField Student StudentId
compiles
compiles :: IO ()
compiles = pure ()
|
