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,

Available on crate feature chrono only.

impl<__S> IsOutputType<__S> for Tz

where __S: ScalarValue,

Available on crate feature chrono-tz only.

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 String

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for BigDecimal

where __S: ScalarValue,

Available on crate feature bigdecimal only.

impl<__S> IsOutputType<__S> for DateTime

where __S: ScalarValue,

Available on crate feature bson only.

impl<__S> IsOutputType<__S> for ObjectId

where __S: ScalarValue,

Available on crate feature bson only.

impl<__S> IsOutputType<__S> for NaiveDate

where __S: ScalarValue,

Available on crate feature chrono only.

impl<__S> IsOutputType<__S> for NaiveDateTime

where __S: ScalarValue,

Available on crate feature chrono only.

impl<__S> IsOutputType<__S> for NaiveTime

where __S: ScalarValue,

Available on crate feature chrono only.

impl<__S> IsOutputType<__S> for CompactString

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for Date

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> IsOutputType<__S> for DateTime

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> IsOutputType<__S> for Time

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> IsOutputType<__S> for Span

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> IsOutputType<__S> for Timestamp

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> IsOutputType<__S> for Offset

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> IsOutputType<__S> for TimeZone

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> IsOutputType<__S> for Zoned

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> IsOutputType<__S> for Decimal

where __S: ScalarValue,

Available on crate feature rust_decimal only.

impl<__S> IsOutputType<__S> for Date

where __S: ScalarValue,

Available on crate feature time only.

impl<__S> IsOutputType<__S> for OffsetDateTime

where __S: ScalarValue,

Available on crate feature time only.

impl<__S> IsOutputType<__S> for PrimitiveDateTime

where __S: ScalarValue,

Available on crate feature time only.

impl<__S> IsOutputType<__S> for Time

where __S: ScalarValue,

Available on crate feature time only.

impl<__S> IsOutputType<__S> for UtcOffset

where __S: ScalarValue,

Available on crate feature time only.

impl<__S> IsOutputType<__S> for Url

where __S: ScalarValue,

Available on crate feature url only.

impl<__S> IsOutputType<__S> for Uuid

where __S: ScalarValue,

Available on crate feature uuid only.

Implementors

impl<S> IsOutputType<S> for Argument<S>

where S: ScalarValue + ScalarValue,

impl<S> IsOutputType<S> for Field<S>

where S: ScalarValue + ScalarValue,

impl<S> IsOutputType<S> for SchemaType<S>

where S: ScalarValue + ScalarValue,

impl<__S> IsOutputType<__S> for TypeKind

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for Episode

where __S: ScalarValue,

Available on crate feature expose-test-schema only.

impl<__S> IsOutputType<__S> for juniper::integrations::jiff::TimeZone

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> IsOutputType<__S> for EnumValue

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for ArcStr

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for ID

where __S: ScalarValue,

impl<__S> IsOutputType<__S> for Droid

where __S: ScalarValue,

Available on crate feature expose-test-schema only.

impl<__S> IsOutputType<__S> for Human

where __S: ScalarValue,

Available on crate feature expose-test-schema only.

impl<__S> IsOutputType<__S> for Query

where __S: ScalarValue,

Available on crate feature expose-test-schema only.

impl<__S> IsOutputType<__S> for Subscription

where __S: ScalarValue,

Available on crate feature expose-test-schema only.

impl<__S> IsOutputType<__S> for CharacterValue

where __S: ScalarValue,

Available on crate feature expose-test-schema only.