Struct ColumnFlags 

pub struct ColumnFlags(/* private fields */);

Packed column metadata flags for ColumnRef.

Encodes the nullability, primary-key, unique, and has-default bits in a single byte so that ColumnRef stays below the “too many bools” threshold while keeping each bit independently addressable.

Implementations

impl ColumnFlags

pub const NOT_NULL: Self

Column is declared NOT NULL.

pub const PRIMARY_KEY: Self

Column participates in the table’s primary key.

pub const UNIQUE: Self

Column has a UNIQUE constraint.

pub const HAS_DEFAULT: Self

Column has a DEFAULT clause.

pub const fn empty() -> Self

Returns a flag set with no bits set.

pub const fn from_bits(bits: u8) -> Self

Reconstructs a flag set from its raw byte representation.

pub const fn bits(self) -> u8

Returns the raw byte representation.

pub const fn contains(self, other: Self) -> bool

Returns true when every bit in other is set in self.

pub const fn union(self, other: Self) -> Self

Returns the union of two flag sets.

Trait Implementations

impl BitOr for ColumnFlags

type Output = ColumnFlags

The resulting type after applying the | operator.

fn bitor(self, rhs: Self) -> Self

Performs the | operation.

impl BitOrAssign for ColumnFlags

fn bitor_assign(&mut self, rhs: Self)

Performs the |= operation.

impl Clone for ColumnFlags

fn clone(&self) -> ColumnFlags

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnFlags

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

Formats the value using the given formatter.

impl Default for ColumnFlags

fn default() -> ColumnFlags

Returns the “default value” for a type.

impl PartialEq for ColumnFlags

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for ColumnFlags

impl Eq for ColumnFlags

impl StructuralPartialEq for ColumnFlags