Struct ConstraintMetadata 

pub struct ConstraintMetadata { /* private fields */ }

Constraint metadata.

Implementations

impl ConstraintMetadata

pub const fn new( reference: ConstraintRef, kind: ConstraintKind, ) -> ConstraintMetadata

Creates constraint metadata.

pub fn with_check(self, check: CheckExpressionLabel) -> ConstraintMetadata

Adds a check expression label.

pub const fn with_status(self, status: ConstraintStatus) -> ConstraintMetadata

Sets constraint status.

pub const fn with_deferrability( self, deferrability: Deferrability, ) -> ConstraintMetadata

Sets deferrability metadata.

pub const fn kind(&self) -> ConstraintKind

Returns the constraint kind.

pub const fn check(&self) -> Option<&CheckExpressionLabel>

Returns the check expression label.

Trait Implementations

impl Clone for ConstraintMetadata

fn clone(&self) -> ConstraintMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ConstraintMetadata

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

Formats the value using the given formatter.

impl PartialEq for ConstraintMetadata

fn eq(&self, other: &ConstraintMetadata) -> 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 ConstraintMetadata

impl StructuralPartialEq for ConstraintMetadata