Struct OptionConstraint 

pub struct OptionConstraint {
    pub min: Option<i64>,
    pub max: Option<i64>,
    pub min_length: Option<usize>,
    pub max_length: Option<usize>,
}

Constraints for option value validation.

These constraints are checked when setting option values. Not all constraints apply to all value types.

Fields

min: Option<i64>

For Integer: minimum value (inclusive).

max: Option<i64>

For Integer: maximum value (inclusive).

min_length: Option<usize>

For String: minimum length.

max_length: Option<usize>

For String: maximum length.

Implementations

impl OptionConstraint

pub const fn none() -> Self

Create a constraint with no restrictions.

pub const fn range(min: i64, max: i64) -> Self

Create a constraint with integer range (inclusive).

pub const fn min(min: i64) -> Self

Create a constraint with minimum integer value.

pub const fn max(max: i64) -> Self

Create a constraint with maximum integer value.

pub const fn string_length(min_length: usize, max_length: usize) -> Self

Create a constraint with string length range.

pub fn validate(&self, value: &OptionValue) -> Result<(), ConstraintError>

Validate a value against this constraint.

Errors

Returns ConstraintError if the value violates the constraint.

Trait Implementations

impl Clone for OptionConstraint

fn clone(&self) -> OptionConstraint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OptionConstraint

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

Formats the value using the given formatter.

impl Default for OptionConstraint

fn default() -> OptionConstraint

Returns the “default value” for a type.

impl PartialEq for OptionConstraint

fn eq(&self, other: &OptionConstraint) -> 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 Eq for OptionConstraint

impl StructuralPartialEq for OptionConstraint