Struct EmptyMutation

pub struct EmptyMutation<T: ?Sized = ()>(/* private fields */);

Utility type to define read-only schemas

If you instantiate RootNode with this as the mutation, no mutation will be generated for the schema.

Implementations

impl<T: ?Sized> EmptyMutation<T>

pub fn new() -> Self

Construct a new empty mutation

Trait Implementations

impl<T: Debug + ?Sized> Debug for EmptyMutation<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<T> Default for EmptyMutation<T>

fn default() -> Self

Returns the “default value” for a type.

impl<S, T> GraphQLType<S> for EmptyMutation<T>

where S: ScalarValue,

fn name(_: &()) -> Option<&'static str>

Returns name of this GraphQLType to expose.

fn meta<'r>(_: &(), registry: &mut Registry<'r, S>) -> MetaType<'r, S>

where S: 'r,

Returns MetaType representing this GraphQLType.

impl<S, T> GraphQLValue<S> for EmptyMutation<T>

where S: ScalarValue,

type Context = T

Context type for this GraphQLValue.

type TypeInfo = ()

Type that may carry additional schema information for this GraphQLValue.

fn type_name<'i>(&self, info: &'i Self::TypeInfo) -> Option<&'i str>

Returns name of the GraphQLType exposed by this GraphQLValue.

fn resolve_field( &self, _info: &Self::TypeInfo, _field_name: &str, _arguments: &Arguments<'_, S>, _executor: &Executor<'_, '_, Self::Context, S>, ) -> ExecutionResult<S>

Resolves the value of a single field on this GraphQLValue.

fn resolve_into_type( &self, info: &Self::TypeInfo, type_name: &str, selection_set: Option<&[Selection<'_, S>]>, executor: &Executor<'_, '_, Self::Context, S>, ) -> ExecutionResult<S>

Resolves this GraphQLValue (being an interface or an union) into a concrete downstream object type.

fn concrete_type_name( &self, context: &Self::Context, info: &Self::TypeInfo, ) -> String

Returns the concrete GraphQLType name for this GraphQLValue being an interface, an union or an object.

fn resolve( &self, info: &Self::TypeInfo, selection_set: Option<&[Selection<'_, S>]>, executor: &Executor<'_, '_, Self::Context, S>, ) -> ExecutionResult<S>

Resolves the provided selection_set against this GraphQLValue.

impl<S, T> GraphQLValueAsync<S> for EmptyMutation<T>

where Self::TypeInfo: Sync, Self::Context: Sync, S: ScalarValue + Send + Sync,

fn resolve_field_async<'a>( &'a self, _info: &'a Self::TypeInfo, _field_name: &'a str, _arguments: &'a Arguments<'_, S>, _executor: &'a Executor<'_, '_, Self::Context, S>, ) -> BoxFuture<'a, ExecutionResult<S>>

Resolves the value of a single field on this GraphQLValueAsync.

fn resolve_into_type_async<'a>( &'a self, info: &'a Self::TypeInfo, type_name: &str, selection_set: Option<&'a [Selection<'a, S>]>, executor: &'a Executor<'a, 'a, Self::Context, S>, ) -> BoxFuture<'a, ExecutionResult<S>>

Resolves this GraphQLValueAsync (being an interface or an union) into a concrete downstream object type.

fn resolve_async<'a>( &'a self, info: &'a Self::TypeInfo, selection_set: Option<&'a [Selection<'_, S>]>, executor: &'a Executor<'_, '_, Self::Context, S>, ) -> BoxFuture<'a, ExecutionResult<S>>

Resolves the provided selection_set against this GraphQLValueAsync.