Enum edn::query::PatternNonValuePlace

[+] Show type declaration

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

[−] Expand description

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

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fn clone(&self) -> PatternNonValuePlace

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Debug for PatternNonValuePlace

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

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Formats the value using the given formatter.

impl Eq for PatternNonValuePlace

impl PartialEq for PatternNonValuePlace

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

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

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

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This method tests for !=.

impl From<Rc<Keyword>> for PatternNonValuePlace

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

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Performs the conversion.

impl From<Keyword> for PatternNonValuePlace

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fn from(value: Keyword) -> Self

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Performs the conversion.

impl FromValue<PatternNonValuePlace> for PatternNonValuePlace

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