Trait IsOutputType

pub trait IsOutputType<S: ScalarValue>: GraphQLType<S> {
    // Provided method
    fn mark() { ... }
}

Marker trait for types which can be used as output types.

The GraphQL specification differentiates between input and output types. Each type which can be used as an output type should implement this trait. The specification defines enum, scalar, object, union, and interface as output types.

Provided Methods

fn mark()

An arbitrary function without meaning.

May contain compile timed check logic which ensures that types are used correctly according to the GraphQL specification.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<S> IsOutputType<S> for str

where S: ScalarValue,

impl<S, T> IsOutputType<S> for Option<T>

where T: IsOutputType<S>, S: ScalarValue,

fn mark()

impl<S, T> IsOutputType<S> for &T

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

fn mark()

impl<S, T> IsOutputType<S> for [T]

where T: IsOutputType<S>, S: ScalarValue,

fn mark()

impl<S, T> IsOutputType<S> for Box<T>

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

fn mark()

impl<S, T> IsOutputType<S> for Arc<T>

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

fn mark()

impl<S, T> IsOutputType<S> for Vec<T>

where T: IsOutputType<S>, S: ScalarValue,

fn mark()

impl<S, T, const N: usize> IsOutputType<S> for [T; N]

where T: IsOutputType<S>, S: ScalarValue,

fn mark()

impl<Tz, __S> IsOutputType<__S> for DateTime<Tz>

where Tz: TimeZone + FromFixedOffset, Tz::Offset: Display, __S: ScalarValue,

impl<__S> IsOutputType<__S> for bool

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for f64

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for i32

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for NaiveDate

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for NaiveDateTime

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for NaiveTime

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for String

where __S: ScalarValue,

Implementors

impl<'a, S> IsOutputType<S> for Argument<'a, S>

where S: ScalarValue + ScalarValue + 'a,

impl<'a, S> IsOutputType<S> for Field<'a, S>

where S: ScalarValue + ScalarValue + 'a,

impl<'a, S> IsOutputType<S> for SchemaType<'a, S>

where S: ScalarValue + ScalarValue + 'a,

impl<__S> IsOutputType<__S> for TypeKind

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for EnumValue

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for ID

where __S: ScalarValue,