Enum edn::query::PatternNonValuePlace
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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
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fn clone(&self) -> PatternNonValuePlace
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
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Performs copy-assignment from source
. Read more
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. Read more
impl Eq for PatternNonValuePlace
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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 ==
. Read more
fn ne(&self, __arg_0: &PatternNonValuePlace) -> bool
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This method tests for !=
.