Enum CheckReference 

pub enum CheckReference<'a> {
    WholeRow,
    Column(&'a str),
}

Variants

WholeRow

Column(&'a str)

Implementations

impl<'a> CheckReference<'a>

pub const fn column_name(self) -> Option<&'a str>

Whole rows have a relation dependency but no attribute name.

pub fn attribute_number( self, lookup: impl FnOnce(&str) -> Result<i16, SQLError>, ) -> Result<i16, SQLError>

CHECK permits tableoid as its only system attribute; user attributes keep the declaration’s durable numbers.

Trait Implementations

impl<'a> Clone for CheckReference<'a>

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for CheckReference<'a>

impl<'a> Debug for CheckReference<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for CheckReference<'a>

impl<'a> PartialEq for CheckReference<'a>

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<'a> StructuralPartialEq for CheckReference<'a>