[−][src]Struct async_graphql::Lookahead
A selection performed by a query.
Implementations
impl<'a> Lookahead<'a>[src]
pub fn field(&self, name: &str) -> Self[src]
Get the first subfield of the selection set with the specified name. This will ignore aliases.
For example, calling .field("a") on { a { b } } will return a lookahead that
represents { b }.
pub fn exists(&self) -> bool[src]
Returns true if field exists otherwise return false.
Auto Trait Implementations
impl<'a> RefUnwindSafe for Lookahead<'a>
impl<'a> Send for Lookahead<'a>
impl<'a> Sync for Lookahead<'a>
impl<'a> Unpin for Lookahead<'a>
impl<'a> UnwindSafe for Lookahead<'a>
Blanket Implementations
impl<T> Any for T where
T: 'static + ?Sized, [src]
T: 'static + ?Sized,
impl<T> Borrow<T> for T where
T: ?Sized, [src]
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized, [src]
T: ?Sized,
pub fn borrow_mut(&mut self) -> &mut T[src]
impl<T> From<T> for T[src]
impl<T> Instrument for T[src]
pub fn instrument(self, span: Span) -> Instrumented<Self>[src]
pub fn in_current_span(self) -> Instrumented<Self>[src]
impl<T, U> Into<U> for T where
U: From<T>, [src]
U: From<T>,
impl<T> Same<T> for T
type Output = T
Should always be Self
impl<T, U> TryFrom<U> for T where
U: Into<T>, [src]
U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]
impl<T, U> TryInto<U> for T where
U: TryFrom<T>, [src]
U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
V: MultiLane<T>,