graphql-engine/server/src-lib/Hasura/RQL/IR/Delete.hs
Antoine Leblanc d91029ad51 [gardening] remove all traverse functions from RQL.IR
### Description

This PR removes all `fmapX` and `traverseX` functions from RQL.IR, favouring instead `Functor` and `Traversable` instances throughout the code. This was a relatively straightforward change, except for two small pain points: `AnnSelectG` and `AnnInsert`. Both were parametric over two types `a` and `v`, making it impossible to make them traversable functors... But it turns out that in every single use case, `a ~ f v`. By changing those types to take such an `f :: Type -> Type` as an argument instead of `a :: Type` makes it possible to make them functors.

The only small difference is for `AnnIns`, I had to introduce one `Identity` transformation for one of the `f` parameters. This is relatively straightforward.

### Notes

This PR fixes the most verbose BigQuery hint (`let` instead of `<- pure`).

https://github.com/hasura/graphql-engine-mono/pull/1668

GitOrigin-RevId: e632263a8c559aa04aeae10dcaec915b4a81ad1a
2021-07-08 15:42:53 +00:00

23 lines
661 B
Haskell

module Hasura.RQL.IR.Delete where
import Hasura.Prelude
import Data.Kind (Type)
import Hasura.RQL.IR.BoolExp
import Hasura.RQL.IR.Returning
import Hasura.RQL.Types.Backend
import Hasura.RQL.Types.Column
import Hasura.SQL.Backend
data AnnDelG (b :: BackendType) (r :: BackendType -> Type) v
= AnnDel
{ dqp1Table :: !(TableName b)
, dqp1Where :: !(AnnBoolExp b v, AnnBoolExp b v)
, dqp1Output :: !(MutationOutputG b r v)
, dqp1AllCols :: ![ColumnInfo b]
} deriving (Functor, Foldable, Traversable)
type AnnDel b = AnnDelG b (Const Void) (SQLExpression b)