Trait ToScalarValue 

pub trait ToScalarValue<S = DefaultScalarValue> {
    // Required method
    fn to_scalar_value(&self) -> S;
}

Conversion of a Rust data type into a ScalarValue.

Implementation

Implementing this trait for a type allows to specify this type directly in the to_output() function when implementing a GraphQLScalar via derive macro.

Also, #[derive(GraphQLScalar)] automatically implements this trait for a type.

Required Methods

fn to_scalar_value(&self) -> S

Converts this value into a ScalarValue.

Implementations on Foreign Types

impl<S: ScalarValue> ToScalarValue<S> for str

fn to_scalar_value(&self) -> S

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

where T: ToScalarValue<S> + ?Sized,

fn to_scalar_value(&self) -> S

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

where T: ToScalarValue<S> + ?Sized,

fn to_scalar_value(&self) -> S

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

where T: ToScalarValue<S> + ?Sized,

fn to_scalar_value(&self) -> S

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

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

Available on crate feature chrono only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Tz

where __S: ScalarValue,

Available on crate feature chrono-tz only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for bool

where __S: ScalarValue,

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for f64

where __S: ScalarValue,

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for i32

where __S: ScalarValue,

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for String

where __S: ScalarValue,

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for BigDecimal

where __S: ScalarValue,

Available on crate feature bigdecimal only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for DateTime

where __S: ScalarValue,

Available on crate feature bson only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for ObjectId

where __S: ScalarValue,

Available on crate feature bson only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for NaiveDate

where __S: ScalarValue,

Available on crate feature chrono only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for NaiveDateTime

where __S: ScalarValue,

Available on crate feature chrono only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for NaiveTime

where __S: ScalarValue,

Available on crate feature chrono only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for CompactString

where __S: ScalarValue,

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Date

where __S: ScalarValue,

Available on crate feature jiff only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for DateTime

where __S: ScalarValue,

Available on crate feature jiff only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Time

where __S: ScalarValue,

Available on crate feature jiff only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Span

where __S: ScalarValue,

Available on crate feature jiff only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Timestamp

where __S: ScalarValue,

Available on crate feature jiff only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Offset

where __S: ScalarValue,

Available on crate feature jiff only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for TimeZone

where __S: ScalarValue,

Available on crate feature jiff only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Zoned

where __S: ScalarValue,

Available on crate feature jiff only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Decimal

where __S: ScalarValue,

Available on crate feature rust_decimal only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Date

where __S: ScalarValue,

Available on crate feature time only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for OffsetDateTime

where __S: ScalarValue,

Available on crate feature time only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for PrimitiveDateTime

where __S: ScalarValue,

Available on crate feature time only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Time

where __S: ScalarValue,

Available on crate feature time only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for UtcOffset

where __S: ScalarValue,

Available on crate feature time only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Url

where __S: ScalarValue,

Available on crate feature url only.

fn to_scalar_value(&self) -> __S

impl<__S> ToScalarValue<__S> for Uuid

where __S: ScalarValue,

Available on crate feature uuid only.

fn to_scalar_value(&self) -> __S

Implementors

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

where __S: ScalarValue,

Available on crate feature jiff only.

impl<__S> ToScalarValue<__S> for ArcStr

where __S: ScalarValue,

impl<__S> ToScalarValue<__S> for ID

where __S: ScalarValue,