Struct FixedDecimal 

pub struct FixedDecimal<const WIDTH: u8, const SCALE: u8>(pub Decimal);

Decimal wrapper enforcing static precision/scale.

WIDTH = total digits, SCALE = fractional digits.

Tuple Fields

0: Decimal

Trait Implementations

impl<const W: u8, const S: u8> AsValue for FixedDecimal<W, S>

fn as_empty_value() -> Value

Return NULL variant.

fn as_value(self) -> Value

Convert to Value.

fn try_from_value(value: Value) -> Result<Self>

where Self: Sized,

Convert from Value.

fn parse(input: impl AsRef<str>) -> Result<Self>

Parse string.

impl<const WIDTH: u8, const SCALE: u8> Clone for FixedDecimal<WIDTH, SCALE>

fn clone(&self) -> FixedDecimal<WIDTH, SCALE>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<const WIDTH: u8, const SCALE: u8> Copy for FixedDecimal<WIDTH, SCALE>

impl<const WIDTH: u8, const SCALE: u8> Debug for FixedDecimal<WIDTH, SCALE>

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

Formats the value using the given formatter.

impl<const WIDTH: u8, const SCALE: u8> Default for FixedDecimal<WIDTH, SCALE>

fn default() -> FixedDecimal<WIDTH, SCALE>

Returns the “default value” for a type.

impl<const WIDTH: u8, const SCALE: u8> Eq for FixedDecimal<WIDTH, SCALE>

impl<const W: u8, const S: u8> Expression for FixedDecimal<W, S>

fn write_query( &self, writer: &dyn SqlWriter, context: &mut Context, out: &mut DynQuery, )

Generates the SQL representation of this expression.

fn accept_visitor( &self, _matcher: &mut dyn ExpressionVisitor, _writer: &dyn SqlWriter, _context: &mut Context, _out: &mut DynQuery, ) -> bool

Traverses the expression with a visitor.

fn as_identifier(&self, context: &mut Context) -> String

Renders the expression as a string suitable for use as an identifier.

impl<const W: u8, const S: u8> From<Decimal> for FixedDecimal<W, S>

fn from(value: Decimal) -> Self

Converts to this type from the input type.

impl<const W: u8, const S: u8> From<FixedDecimal<W, S>> for Decimal

fn from(value: FixedDecimal<W, S>) -> Self

Converts to this type from the input type.

impl<const WIDTH: u8, const SCALE: u8> Hash for FixedDecimal<WIDTH, SCALE>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<const W: u8, const S: u8> OpPrecedence for FixedDecimal<W, S>

fn precedence(&self, _: &dyn SqlWriter) -> i32

Lower numbers bind weaker, writers parenthesize when child precedence <= operator precedence.

impl<const WIDTH: u8, const SCALE: u8> Ord for FixedDecimal<WIDTH, SCALE>

fn cmp(&self, other: &FixedDecimal<WIDTH, SCALE>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<const WIDTH: u8, const SCALE: u8> PartialEq for FixedDecimal<WIDTH, SCALE>

fn eq(&self, other: &FixedDecimal<WIDTH, SCALE>) -> 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<const WIDTH: u8, const SCALE: u8> PartialOrd for FixedDecimal<WIDTH, SCALE>

fn partial_cmp(&self, other: &FixedDecimal<WIDTH, SCALE>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<const WIDTH: u8, const SCALE: u8> StructuralPartialEq for FixedDecimal<WIDTH, SCALE>