[][src]Enum juniper::Type

pub enum Type<'a> {
    Named(Cow<'a, str>),
    NonNullNamed(Cow<'a, str>),

A type literal in the syntax tree

This enum carries no semantic information and might refer to types that do not exist.


Named(Cow<'a, str>)

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.

NonNullNamed(Cow<'a, str>)

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.


impl<'a> Type<'a>[src]

pub fn name(&self) -> Option<&str>[src]

Get the name of a named type.

Only applies to named types; lists will return None.

pub fn innermost_name(&self) -> &str[src]

Get the innermost name by unpacking lists

All type literals contain exactly one named type.

pub fn is_non_null(&self) -> bool[src]

Determines if a type only can represent non-null values.

Trait Implementations

impl<'a> Clone for Type<'a>[src]

impl<'a> Debug for Type<'a>[src]

impl<'a> Display for Type<'a>[src]

impl<'a> Eq for Type<'a>[src]

impl<'a> PartialEq<Type<'a>> for Type<'a>[src]

impl<'a> StructuralEq for Type<'a>[src]

impl<'a> StructuralPartialEq for Type<'a>[src]

Auto Trait Implementations

impl<'a> RefUnwindSafe for Type<'a>

impl<'a> Send for Type<'a>

impl<'a> Sync for Type<'a>

impl<'a> Unpin for Type<'a>

impl<'a> UnwindSafe for Type<'a>

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized

impl<T> Borrow<T> for T where
    T: ?Sized

impl<T> BorrowMut<T> for T where
    T: ?Sized

impl<Q, K> Equivalent<K> for Q where
    K: Borrow<Q> + ?Sized,
    Q: Eq + ?Sized

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 

impl<T> ToOwned for T where
    T: Clone

type Owned = T

The resulting type after obtaining ownership.

impl<T> ToString for T where
    T: Display + ?Sized

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.