Enum SourceKind 

pub enum SourceKind<A> {
    Name(StrRef),
    Subject(StrRef),
    Subquery(Box<Query<A>>),
}

The kind of data source.

EventQL supports three types of sources:

• Named sources (e.g., FROM e IN events)
• Subject patterns (e.g., FROM e IN "users/john")
• Subqueries (e.g., FROM e IN (SELECT ...))

Variants

Name(StrRef)

Named source (identifier)

Subject(StrRef)

Subject pattern (string literal used as event subject pattern)

Subquery(Box<Query<A>>)

Nested subquery

Trait Implementations

impl<A: Clone> Clone for SourceKind<A>

fn clone(&self) -> SourceKind<A>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<A: Debug> Debug for SourceKind<A>

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

Formats the value using the given formatter.

impl<A> Serialize for SourceKind<A>

where A: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.