Enum faunadb::expr::Expr

pub enum Expr<'a> {
    Annotated(AnnotatedExpr<'a>),
    Query(Box<Query<'a>>),
    Simple(SimpleExpr<'a>),
}

A representation of a FaunaDB Query Expression.

Expressions should be created using the From/Into traits.

See the docs.

Variants

Annotated(AnnotatedExpr<'a>)Query(Box<Query<'a>>)Simple(SimpleExpr<'a>)

Methods

impl<'a> Expr<'a>

pub fn null() -> Self

A helper to create a null expression.

pub fn into_quoted(self) -> Self

Quote the expression to prevent Fauna evalutating it.

pub fn as_quoted(&self) -> Self

Quote the expression to prevent Fauna evalutating it.

Trait Implementations

impl<'a> Default for Expr<'a>

fn default() -> Self

Returns the "default value" for a type.

impl<'a> Clone for Expr<'a>

fn clone(&self) -> Expr<'a>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> From<i8> for Expr<'a>

fn from(i: i8) -> Expr<'a>

Performs the conversion.

impl<'a> From<i16> for Expr<'a>

fn from(i: i16) -> Expr<'a>

Performs the conversion.

impl<'a> From<i32> for Expr<'a>

fn from(i: i32) -> Expr<'a>

Performs the conversion.

impl<'a> From<i64> for Expr<'a>

fn from(i: i64) -> Expr<'a>

Performs the conversion.

impl<'a> From<u8> for Expr<'a>

fn from(i: u8) -> Expr<'a>

Performs the conversion.

impl<'a> From<u16> for Expr<'a>

fn from(i: u16) -> Expr<'a>

Performs the conversion.

impl<'a> From<u32> for Expr<'a>

fn from(i: u32) -> Expr<'a>

Performs the conversion.

impl<'a> From<u64> for Expr<'a>

fn from(i: u64) -> Expr<'a>

Performs the conversion.

impl<'a, T> From<Option<T>> for Expr<'a> where
    T: Into<Expr<'a>>, 

fn from(t: Option<T>) -> Self

Performs the conversion.

impl<'a> From<&'a str> for Expr<'a>

fn from(s: &'a str) -> Expr<'a>

Performs the conversion.

impl<'a> From<String> for Expr<'a>

fn from(s: String) -> Expr<'a>

Performs the conversion.

impl<'a> From<bool> for Expr<'a>

fn from(b: bool) -> Expr<'a>

Performs the conversion.

impl<'a> From<Array<'a>> for Expr<'a>

fn from(a: Array<'a>) -> Expr<'a>

Performs the conversion.

impl<'a, Q> From<Q> for Expr<'a> where
    Q: Into<Query<'a>>, 

fn from(q: Q) -> Expr<'a>

Performs the conversion.

impl<'a> From<Object<'a>> for Expr<'a>

fn from(o: Object<'a>) -> Expr<'a>

Performs the conversion.

impl<'a> From<Bytes<'a>> for Expr<'a>

fn from(b: Bytes<'a>) -> Expr<'a>

Performs the conversion.

impl<'a> From<Ref<'a>> for Expr<'a>

fn from(r: Ref<'a>) -> Expr<'a>

Performs the conversion.

impl<'a> From<NaiveDate> for Expr<'a>

fn from(d: NaiveDate) -> Expr<'a>

Performs the conversion.

impl<'a> From<Set<'a>> for Expr<'a>

fn from(s: Set<'a>) -> Expr<'a>

Performs the conversion.

impl<'a> From<DateTime<Utc>> for Expr<'a>

fn from(dt: DateTime<Utc>) -> Expr<'a>

Performs the conversion.

impl<'a> From<f64> for Expr<'a>

fn from(f: f64) -> Expr<'a>

Performs the conversion.

impl<'a> From<f32> for Expr<'a>

fn from(f: f32) -> Expr<'a>

Performs the conversion.

impl<'a> From<Number> for Expr<'a>

fn from(num: Number) -> Expr<'a>

Performs the conversion.

impl<'a> Display for Expr<'a>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a> Debug for Expr<'a>

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a> Serialize for Expr<'a>

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.