Struct QueriableContainerFieldId 

pub struct QueriableContainerFieldId<C: QueriableContainer> {
    pub idx: Option<C::Idx>,
    pub subquery_id: (C::SubqueryId,),
    /* private fields */
}

Fields

idx: Option<C::Idx>

None is only for listing variants and otherwise invalid. If None, shows up as C::IDX_PLACEHOLDER

subquery_id: (C::SubqueryId,)

Implementations

impl<C: QueriableContainer> QueriableContainerFieldId<C>

pub fn new(idx: Option<C::Idx>, subquery_id: C::SubqueryId) -> Self

Trait Implementations

impl<C: Clone + QueriableContainer> Clone for QueriableContainerFieldId<C>

where C::Idx: Clone, C::SubqueryId: Clone,

fn clone(&self) -> QueriableContainerFieldId<C>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<C: Debug + QueriableContainer> Debug for QueriableContainerFieldId<C>

where C::Idx: Debug, C::SubqueryId: Debug,

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

Formats the value using the given formatter.

impl<C: QueriableContainer> Display for QueriableContainerFieldId<C>

where C::Idx: ToString, C::SubqueryId: ToString,

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

Formats the value using the given formatter.

impl<C: QueriableContainer> FieldId for QueriableContainerFieldId<C>

type Queriable = C

impl<C: QueriableContainer> FromStr for QueriableContainerFieldId<C>

where C::Idx: FromStr, C::SubqueryId: FromStr, <C::Idx as FromStr>::Err: Into<Error>, <C::SubqueryId as FromStr>::Err: Into<Error>,

type Err = Error

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl<C: PartialEq + QueriableContainer> PartialEq for QueriableContainerFieldId<C>

where C::Idx: PartialEq, C::SubqueryId: PartialEq,

fn eq(&self, other: &QueriableContainerFieldId<C>) -> 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<C: QueriableContainer> Sequence for QueriableContainerFieldId<C>

where C::SubqueryId: Sequence,

const CARDINALITY: usize = <C::SubqueryId>::CARDINALITY

Number of values of type Self.

fn next(&self) -> Option<Self>

Returns value following *self or None if this was the end.

fn previous(&self) -> Option<Self>

Returns value preceding *self or None if this was the beginning.

fn first() -> Option<Self>

Returns the first value of type Self.

fn last() -> Option<Self>

Returns the last value of type Self.

impl<C: QueriableContainer> StructuralPartialEq for QueriableContainerFieldId<C>