[−][src]Enum juniper::Type
A type literal in the syntax tree
This enum carries no semantic information and might refer to types that do not exist.
Variants
A nullable named type, e.g. String
A nullable list type, e.g. [String]
The list itself is what's nullable, the containing type might be non-null.
A non-null named type, e.g. String!
A non-null list type, e.g. [String]!
.
The list itself is what's non-null, the containing type might be null.
Methods
impl<'a> Type<'a>
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pub fn name(&self) -> Option<&str>
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Get the name of a named type.
Only applies to named types; lists will return None
.
pub fn innermost_name(&self) -> &str
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Get the innermost name by unpacking lists
All type literals contain exactly one named type.
pub fn is_non_null(&self) -> bool
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Determines if a type only can represent non-null values.
Trait Implementations
impl<'a> Eq for Type<'a>
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impl<'a> Clone for Type<'a>
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impl<'a> PartialEq<Type<'a>> for Type<'a>
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impl<'a> Debug for Type<'a>
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impl<'a> Display for Type<'a>
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Auto Trait Implementations
impl<'a> Send for Type<'a>
impl<'a> Unpin for Type<'a>
impl<'a> Sync for Type<'a>
impl<'a> UnwindSafe for Type<'a>
impl<'a> RefUnwindSafe for Type<'a>
Blanket Implementations
impl<T> ToOwned for T where
T: Clone,
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T: Clone,
type Owned = T
The resulting type after obtaining ownership.
fn to_owned(&self) -> T
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fn clone_into(&self, target: &mut T)
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impl<T, U> Into<U> for T where
U: From<T>,
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U: From<T>,
impl<T> From<T> for T
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impl<T> ToString for T where
T: Display + ?Sized,
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T: Display + ?Sized,
impl<T, U> TryFrom<U> for T where
U: Into<T>,
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U: Into<T>,
type Error = Infallible
The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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impl<T, U> TryInto<U> for T where
U: TryFrom<T>,
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U: TryFrom<T>,
type Error = <U as TryFrom<T>>::Error
The type returned in the event of a conversion error.
fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>
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impl<T> BorrowMut<T> for T where
T: ?Sized,
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T: ?Sized,
fn borrow_mut(&mut self) -> &mut T
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impl<T> Borrow<T> for T where
T: ?Sized,
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T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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T: 'static + ?Sized,
impl<Q, K> Equivalent<K> for Q where
K: Borrow<Q> + ?Sized,
Q: Eq + ?Sized,
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K: Borrow<Q> + ?Sized,
Q: Eq + ?Sized,