Language.GraphQL.Validate.Validation

Definitions used by the validation rules and the validator itself.

Documentation

data Error

Validation error.

Constructors

Error

Fields

• message :: String
• locations :: [Location]

Instances

Eq Error

Defined in Language.GraphQL.Validate.Validation

Methods

(==) :: Error -> Error -> Bool

(/=) :: Error -> Error -> Bool

Show Error

Defined in Language.GraphQL.Validate.Validation

Methods

showsPrec :: Int -> Error -> ShowS

show :: Error -> String

showList :: [Error] -> ShowS

data Rule m

Rule assigns a function to each AST node that can be validated. If the validation fails, the function should return an error message, or Nothing otherwise.

Constructors

DefinitionRule (Definition -> RuleT m)

OperationDefinitionRule (OperationDefinition -> RuleT m)

FragmentDefinitionRule (FragmentDefinition -> RuleT m)

SelectionRule (Maybe (Type m) -> Selection -> RuleT m)

FragmentRule (FragmentDefinition -> RuleT m) (InlineFragment -> RuleT m)

FragmentSpreadRule (FragmentSpread -> RuleT m)

FieldRule (Maybe (Type m) -> Field -> RuleT m)

ArgumentsRule (Maybe (Type m) -> Field -> RuleT m) (Directive -> RuleT m)

DirectivesRule (DirectiveLocation -> [Directive] -> RuleT m)

VariablesRule ([VariableDefinition] -> RuleT m)

ValueRule (Maybe Type -> Node Value -> RuleT m) (Maybe Type -> Node ConstValue -> RuleT m)

type RuleT m = ReaderT (Validation m) Seq Error

Monad transformer used by the rules.

data Validation m

Validation rule context.

Constructors

Validation

Fields

• ast :: Document
• schema :: Schema m