Enum TableNullValue 

pub enum TableNullValue {
    Integer(i64),
    Text(String),
}

The value a table column uses to mark an undefined entry, from its TNULLn card.

The two table kinds spell this differently: a binary table gives an integer that matching raw entries are compared against, while an ASCII table gives the literal character string that fills the field. Both are accepted here so that a header carrying either still parses.

Variants

Integer(i64)

TNULLn = -32768, as binary tables write it.

Text(String)

TNULLn = ' ', as ASCII tables write it.

Implementations

impl TableNullValue

pub fn as_integer(&self) -> Option<i64>

The integer form, or None for an ASCII table’s string form.

pub fn as_str(&self) -> Option<&str>

The string form, or None for a binary table’s integer form.

Trait Implementations

impl Clone for TableNullValue

fn clone(&self) -> TableNullValue

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TableNullValue

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

Formats the value using the given formatter.

impl Display for TableNullValue

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

Formats the value using the given formatter.

impl PartialEq for TableNullValue

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for TableNullValue