graphql/Data/GraphQL/AST/Core.hs
Danny Navarro 5390c4ca1e
Split AST in 2
One AST is meant to be a target parser and tries to adhere as much as possible
to the spec. The other is a simplified version of that AST meant for execution.

Also newtypes have been replaced by type synonyms and NonEmpty lists are being
used where it makes sense.
2017-01-28 14:15:14 -03:00

34 lines
855 B
Haskell

-- | This is the AST meant to be executed.
module Data.GraphQL.AST.Core where
import Data.Int (Int32)
import Data.List.NonEmpty (NonEmpty)
import Data.Text (Text)
type Name = Text
type Document = NonEmpty Operation
data Operation = Query (NonEmpty Field)
| Mutation (NonEmpty Field)
deriving (Eq,Show)
data Field = Field (Maybe Alias) Name [Argument] [Field] deriving (Eq,Show)
type Alias = Name
data Argument = Argument Name Value deriving (Eq,Show)
data Value = ValueInt Int32
-- GraphQL Float is double precision
| ValueFloat Double
| ValueBoolean Bool
| ValueString Text
| ValueEnum Name
| ValueList [Value]
| ValueObject [ObjectField]
deriving (Eq,Show)
data ObjectField = ObjectField Name Value deriving (Eq,Show)