Safe Haskell	Safe
Language	Haskell2010

Language.GraphQL.AST.Core

Description

This is the AST meant to be executed.

Synopsis

type Alias = Name
data Argument = Argument Name Value
type Document = NonEmpty Operation
data Field = Field (Maybe Alias) Name [Argument] (Seq Selection)
data Fragment = Fragment TypeCondition (Seq Selection)
type Name = Text
data Operation
- = Query (Maybe Text) (Seq Selection)
- | Mutation (Maybe Text) (Seq Selection)
data Selection
- = SelectionFragment Fragment
- | SelectionField Field
type TypeCondition = Name
data Value
- = Int Int32
- | Float Double
- | String Text
- | Boolean Bool
- | Null
- | Enum Name
- | List [Value]
- | Object (HashMap Name Value)

Documentation

type Alias = Name Source #

Alternative field name.

{
  smallPic: profilePic(size: 64)
  bigPic: profilePic(size: 1024)
}

Here "smallPic" and "bigPic" are aliases for the same field, "profilePic", used to distinquish between profile pictures with different arguments (sizes).

data Argument Source #

Single argument.

Constructors

Argument Name Value

Instances

Eq Argument Source #
Instance details Defined in Language.GraphQL.AST.Core Methods (==) :: Argument -> Argument -> Bool # (/=) :: Argument -> Argument -> Bool #
Show Argument Source #
Instance details Defined in Language.GraphQL.AST.Core Methods showsPrec :: Int -> Argument -> ShowS # show :: Argument -> String # showList :: [Argument] -> ShowS #

type Document = NonEmpty Operation Source #

GraphQL document is a non-empty list of operations.

data Field Source #

Single GraphQL field.

Constructors

Field (Maybe Alias) Name [Argument] (Seq Selection)

Instances

Eq Field Source #
Instance details Defined in Language.GraphQL.AST.Core Methods (==) :: Field -> Field -> Bool # (/=) :: Field -> Field -> Bool #
Show Field Source #
Instance details Defined in Language.GraphQL.AST.Core Methods showsPrec :: Int -> Field -> ShowS # show :: Field -> String # showList :: [Field] -> ShowS #

data Fragment Source #

Represents fragments and inline fragments.

Constructors

Fragment TypeCondition (Seq Selection)

Instances

Eq Fragment Source #
Instance details Defined in Language.GraphQL.AST.Core Methods (==) :: Fragment -> Fragment -> Bool # (/=) :: Fragment -> Fragment -> Bool #
Show Fragment Source #
Instance details Defined in Language.GraphQL.AST.Core Methods showsPrec :: Int -> Fragment -> ShowS # show :: Fragment -> String # showList :: [Fragment] -> ShowS #

type Name = Text Source #

Name

data Operation Source #

GraphQL has 3 operation types: queries, mutations and subscribtions.

Currently only queries and mutations are supported.

Constructors

Query (Maybe Text) (Seq Selection)
Mutation (Maybe Text) (Seq Selection)

Instances

Eq Operation Source #
Instance details Defined in Language.GraphQL.AST.Core Methods (==) :: Operation -> Operation -> Bool # (/=) :: Operation -> Operation -> Bool #
Show Operation Source #
Instance details Defined in Language.GraphQL.AST.Core Methods showsPrec :: Int -> Operation -> ShowS # show :: Operation -> String # showList :: [Operation] -> ShowS #

data Selection Source #

Single selection element.

Constructors

SelectionFragment Fragment
SelectionField Field

Instances

Eq Selection Source #
Instance details Defined in Language.GraphQL.AST.Core Methods (==) :: Selection -> Selection -> Bool # (/=) :: Selection -> Selection -> Bool #
Show Selection Source #
Instance details Defined in Language.GraphQL.AST.Core Methods showsPrec :: Int -> Selection -> ShowS # show :: Selection -> String # showList :: [Selection] -> ShowS #

type TypeCondition = Name Source #

Type condition.

data Value Source #

Represents accordingly typed GraphQL values.

Constructors

Int Int32
Float Double	GraphQL Float is double precision
String Text
Boolean Bool
Null
Enum Name
List [Value]
Object (HashMap Name Value)

Instances

Eq Value Source #
Instance details Defined in Language.GraphQL.AST.Core Methods (==) :: Value -> Value -> Bool # (/=) :: Value -> Value -> Bool #
Show Value Source #
Instance details Defined in Language.GraphQL.AST.Core Methods showsPrec :: Int -> Value -> ShowS # show :: Value -> String # showList :: [Value] -> ShowS #
IsString Value Source #
Instance details Defined in Language.GraphQL.AST.Core Methods fromString :: String -> Value #