Struct Registry

pub struct Registry<'r, S = DefaultScalarValue> {
    pub types: FnvHashMap<Name, MetaType<'r, S>>,
}

A type registry used to build schemas

The registry gathers metadata for all types in a schema. It provides convenience methods to convert types implementing the GraphQLType trait into Type instances and automatically registers them.

Fields

types: FnvHashMap<Name, MetaType<'r, S>>

Currently registered types

Implementations

impl<'r, S: 'r> Registry<'r, S>

pub fn new(types: FnvHashMap<Name, MetaType<'r, S>>) -> Self

Constructs a new Registry out of the given types.

pub fn get_type<T>(&mut self, info: &T::TypeInfo) -> Type<'r>

where T: GraphQLType<S> + ?Sized, S: ScalarValue,

Returns a Type instance for the given GraphQLType, registered in this Registry.

If this Registry hasn’t seen a Type with such GraphQLType::name before, it will construct the one and store it.

pub fn field<T>(&mut self, name: &str, info: &T::TypeInfo) -> Field<'r, S>

where T: GraphQLType<S> + ?Sized, S: ScalarValue,

Creates a Field with the provided name.

pub fn arg<T>(&mut self, name: &str, info: &T::TypeInfo) -> Argument<'r, S>

where T: GraphQLType<S> + FromInputValue<S>, S: ScalarValue,

Creates an Argument with the provided name.

pub fn arg_with_default<T>( &mut self, name: &str, value: &T, info: &T::TypeInfo, ) -> Argument<'r, S>

where T: GraphQLType<S> + ToInputValue<S> + FromInputValue<S>, S: ScalarValue,

Creates an Argument with the provided default value.

pub fn build_scalar_type<T>(&mut self, info: &T::TypeInfo) -> ScalarMeta<'r, S>

where T: GraphQLType<S> + FromInputValue<S> + ParseScalarValue<S>, T::Error: IntoFieldError<S>, S: ScalarValue,

Creates a ScalarMeta type.

pub fn build_list_type<T>( &mut self, info: &T::TypeInfo, expected_size: Option<usize>, ) -> ListMeta<'r>

where T: GraphQLType<S> + ?Sized, S: ScalarValue,

Creates a ListMeta type.

Specifying expected_size will be used to ensure that values of this type will always match it.

pub fn build_nullable_type<T>(&mut self, info: &T::TypeInfo) -> NullableMeta<'r>

where T: GraphQLType<S> + ?Sized, S: ScalarValue,

Creates a NullableMeta type.

pub fn build_object_type<T>( &mut self, info: &T::TypeInfo, fields: &[Field<'r, S>], ) -> ObjectMeta<'r, S>

where T: GraphQLType<S> + ?Sized, S: ScalarValue,

Creates an ObjectMeta type with the given fields.

pub fn build_enum_type<T>( &mut self, info: &T::TypeInfo, values: &[EnumValue], ) -> EnumMeta<'r, S>

where T: GraphQLType<S> + FromInputValue<S>, T::Error: IntoFieldError<S>, S: ScalarValue,

Creates an EnumMeta type out of the provided values.

pub fn build_interface_type<T>( &mut self, info: &T::TypeInfo, fields: &[Field<'r, S>], ) -> InterfaceMeta<'r, S>

where T: GraphQLType<S> + ?Sized, S: ScalarValue,

Creates an InterfaceMeta type with the given fields.

pub fn build_union_type<T>( &mut self, info: &T::TypeInfo, types: &[Type<'r>], ) -> UnionMeta<'r>

where T: GraphQLType<S> + ?Sized, S: ScalarValue,

Creates an UnionMeta type of the given types.

pub fn build_input_object_type<T>( &mut self, info: &T::TypeInfo, args: &[Argument<'r, S>], ) -> InputObjectMeta<'r, S>

where T: GraphQLType<S> + FromInputValue<S>, T::Error: IntoFieldError<S>, S: ScalarValue,

Creates an InputObjectMeta type with the given args.