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module Data.GraphQL.AST where
import Data.Text (Text)
-- * Name
type Name = Text
-- * Document
newtype Document = Document [Definition] deriving (Eq,Show)
data Definition = DefinitionOperation OperationDefinition
| DefinitionFragment FragmentDefinition
| DefinitionType TypeDefinition
deriving (Eq,Show)
data OperationDefinition =
Query Name [VariableDefinition] [Directive] SelectionSet
| Mutation Name [VariableDefinition] [Directive] SelectionSet
-- Not official yet
-- -- | Subscription Name [VariableDefinition] [Directive] SelectionSet
deriving (Eq,Show)
data VariableDefinition = VariableDefinition Variable Type (Maybe DefaultValue)
deriving (Eq,Show)
newtype Variable = Variable Name deriving (Eq,Show)
type SelectionSet = [Selection]
data Selection = SelectionField Field
| SelectionFragmentSpread FragmentSpread
| SelectionInlineFragment InlineFragment
deriving (Eq,Show)
data Field = Field Alias Name [Argument]
[Directive]
SelectionSet
deriving (Eq,Show)
type Alias = Name
data Argument = Argument Name Value deriving (Eq,Show)
-- * Fragments
data FragmentSpread = FragmentSpread Name [Directive]
deriving (Eq,Show)
data InlineFragment =
InlineFragment TypeCondition [Directive] SelectionSet
deriving (Eq,Show)
data FragmentDefinition =
FragmentDefinition Name TypeCondition [Directive] SelectionSet
deriving (Eq,Show)
type TypeCondition = NamedType
-- * Values
data Value = ValueVariable Variable
| ValueInt Int -- TODO: Should this be `Integer`?
| ValueFloat Double -- TODO: Should this be `Scientific`?
| ValueBoolean Bool
| ValueString Text
| ValueEnum Name
| ValueList ListValue
| ValueObject ObjectValue
deriving (Eq,Show)
newtype ListValue = ListValue [Value] deriving (Eq,Show)
newtype ObjectValue = ObjectValue [ObjectField] deriving (Eq,Show)
data ObjectField = ObjectField Name Value deriving (Eq,Show)
type DefaultValue = Value
-- * Directives
data Directive = Directive Name [Argument] deriving (Eq,Show)
-- * Type Reference
data Type = TypeNamed NamedType
| TypeList ListType
| TypeNonNull NonNullType
deriving (Eq,Show)
newtype NamedType = NamedType Name deriving (Eq,Show)
newtype ListType = ListType Type deriving (Eq,Show)
data NonNullType = NonNullTypeNamed NamedType
| NonNullTypeList ListType
deriving (Eq,Show)
-- * Type definition
data TypeDefinition = TypeDefinitionObject ObjectTypeDefinition
| TypeDefinitionInterface InterfaceTypeDefinition
| TypeDefinitionUnion UnionTypeDefinition
| TypeDefinitionScalar ScalarTypeDefinition
| TypeDefinitionEnum EnumTypeDefinition
| TypeDefinitionInputObject InputObjectTypeDefinition
| TypeDefinitionTypeExtension TypeExtensionDefinition
deriving (Eq,Show)
data ObjectTypeDefinition = ObjectTypeDefinition Name Interfaces [FieldDefinition]
deriving (Eq,Show)
type Interfaces = [NamedType]
data FieldDefinition = FieldDefinition Name ArgumentsDefinition Type
deriving (Eq,Show)
type ArgumentsDefinition = [InputValueDefinition]
data InputValueDefinition = InputValueDefinition Name Type (Maybe DefaultValue)
deriving (Eq,Show)
data InterfaceTypeDefinition = InterfaceTypeDefinition Name [FieldDefinition]
deriving (Eq,Show)
data UnionTypeDefinition = UnionTypeDefinition Name [NamedType]
deriving (Eq,Show)
data ScalarTypeDefinition = ScalarTypeDefinition Name
deriving (Eq,Show)
data EnumTypeDefinition = EnumTypeDefinition Name [EnumValueDefinition]
deriving (Eq,Show)
newtype EnumValueDefinition = EnumValueDefinition Name
deriving (Eq,Show)
data InputObjectTypeDefinition = InputObjectTypeDefinition Name [InputValueDefinition]
deriving (Eq,Show)
newtype TypeExtensionDefinition = TypeExtensionDefinition ObjectTypeDefinition
deriving (Eq,Show)
|
