Enum mentat_query::PatternValuePlace

pub enum PatternValuePlace {
    Placeholder,
    Variable(Variable),
    EntidOrInteger(i64),
    IdentOrKeyword(Rc<NamespacedKeyword>),
    Constant(NonIntegerConstant),
}

The v part of a pattern can be much broader: it can represent integers that aren't entity IDs (particularly negative integers), strings, and all the rest. We group those under Constant.

Variants

PlaceholderVariable(Variable)EntidOrInteger(i64)IdentOrKeyword(Rc<NamespacedKeyword>)Constant(NonIntegerConstant)

Trait Implementations

impl Clone for PatternValuePlace

fn clone(&self) -> PatternValuePlace

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PatternValuePlace

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

Formats the value using the given formatter.

impl Eq for PatternValuePlace

impl PartialEq for PatternValuePlace

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

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

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

This method tests for !=.

impl FromValue<PatternValuePlace> for PatternValuePlace

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