Created
September 14, 2018 16:06
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| trait MonadReader[R, F[_]] { | |
| def read: F[R] | |
| } | |
| trait HasEnv1[R] { | |
| def env1: Lens[R, LowDslEnv1] | |
| } | |
| case class LowDslEnv1() | |
| def myLowDsl1[R: HasEnv1, F[_]: MonadReader[R, ?]]: F[Unit] = ??? | |
| trait HasEnv2[R] { | |
| def env2: Lens[R, LowDslEnv2] | |
| } | |
| case class LowDslEnv2() | |
| def myLowDsl2[R: HasEnv2, F[_]: MonadReader[R, ?]]: F[Unit] = ??? | |
| case class GlobalEnv(env1: LowDslEnv1, env2: LowDslEnv2) | |
| object GlobalEnv { | |
| implicit val GlobalEnvHasEnv1: HasEnv1[GlobalEnv] = ??? | |
| implicit val GlobalEnvHasEnv2: HasEnv2[GlobalEnv] = ??? | |
| } | |
| def myProgram[F[_]: MonadReader[GlobalEnv, ?]]: F[Unit] = ??? |
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