Enum edn::query::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

PlaceholderVariable(Variable)Entid(i64)Ident(ValueRc<Keyword>)

Trait Implementations

impl Clone for PatternNonValuePlace

fn clone(&self) -> PatternNonValuePlace

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PatternNonValuePlace

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Eq for PatternNonValuePlace

impl PartialEq for PatternNonValuePlace

fn eq(&self, __arg_0: &PatternNonValuePlace) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &PatternNonValuePlace) -> bool

This method tests for !=.

impl From<Rc<Keyword>> for PatternNonValuePlace

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

Performs the conversion.

impl From<Keyword> for PatternNonValuePlace

fn from(value: Keyword) -> Self

Performs the conversion.

impl FromValue<PatternNonValuePlace> for PatternNonValuePlace

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