Enum Data

pub enum Data<'a, T: Queryable> {
    Ref(Pointer<'a, T>),
    Refs(Vec<Pointer<'a, T>>),
    Value(T),
    Nothing,
}

Represents the data that is being processed in the query. It can be a reference to a single object, a collection of references,

Variants

Ref(Pointer<'a, T>)

Refs(Vec<Pointer<'a, T>>)

Value(T)

Nothing

Implementations

impl<'a, T: Queryable> Data<'a, T>

pub fn reduce(self, other: Data<'a, T>) -> Data<'a, T>

pub fn flat_map<F>(self, f: F) -> Data<'a, T>

where F: Fn(Pointer<'a, T>) -> Data<'a, T>,

pub fn ok_ref(self) -> Option<Vec<Pointer<'a, T>>>

Returns the inner value if it is a single reference. If it is a collection of references, it returns the first one. If it is a value, it returns None.

pub fn ok_val(self) -> Option<T>

Returns the inner value if it is a single value. If it is a reference or a collection of references, it returns None.

pub fn new_ref(data: Pointer<'a, T>) -> Data<'a, T>

pub fn new_refs(data: Vec<Pointer<'a, T>>) -> Data<'a, T>

Trait Implementations

impl<'a, T: Clone + Queryable> Clone for Data<'a, T>

fn clone(&self) -> Data<'a, T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a, T: Debug + Queryable> Debug for Data<'a, T>

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

Formats the value using the given formatter.

impl<'a, T: Queryable> Default for Data<'a, T>

fn default() -> Self

Returns the “default value” for a type.

impl<'a, T: Queryable> Display for Data<'a, T>

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

Formats the value using the given formatter.

impl<'a, T: PartialEq + Queryable> PartialEq for Data<'a, T>

fn eq(&self, other: &Data<'a, T>) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a, T: Queryable> StructuralPartialEq for Data<'a, T>