Enum PatternNonValuePlace 

pub enum PatternNonValuePlace {
    Placeholder,
    Variable(Variable),
    Entid(i64),
    Ident(ValueRc<Keyword>),
}

e, a, tx can’t be values – no strings, no floats – and so they can only be variables, entity IDs, ident keywords, or placeholders. This encoding allows us to represent integers that aren’t entity IDs. That’ll get filtered out in the context of the database.

Variants

Placeholder

Variable(Variable)

Entid(i64)

Ident(ValueRc<Keyword>)

Trait Implementations

impl Clone for PatternNonValuePlace

fn clone(&self) -> PatternNonValuePlace

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PatternNonValuePlace

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

Formats the value using the given formatter.

impl Display for PatternNonValuePlace

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

Formats the value using the given formatter.

impl Eq for PatternNonValuePlace

impl From<Keyword> for PatternNonValuePlace

fn from(value: Keyword) -> Self

Converts to this type from the input type.

impl From<Rc<Keyword>> for PatternNonValuePlace

fn from(value: Rc<Keyword>) -> Self

Converts to this type from the input type.

impl FromValue<PatternNonValuePlace> for PatternNonValuePlace

fn from_value(v: &ValueAndSpan) -> Option<PatternNonValuePlace>

impl PartialEq for PatternNonValuePlace

fn eq(&self, other: &PatternNonValuePlace) -> 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 StructuralPartialEq for PatternNonValuePlace