Struct ClosureRule 

pub struct ClosureRule<T: ?Sized> { /* private fields */ }

Adapter wrapping a sync closure as a Rule (used by .refine(...)).

Implementations

impl<T: ?Sized> ClosureRule<T>

pub fn new(f: impl Fn(&T) -> bool + Send + Sync + 'static) -> Self

Wraps a closure under the default name "refine-0".

pub fn with_ordinal( ordinal: usize, f: impl Fn(&T) -> bool + Send + Sync + 'static, ) -> Self

Ordinal-based name ("refine-3"), stable within a schema instance. The formatted name is owned by the rule; nothing is leaked.

Trait Implementations

impl<T: ?Sized> Debug for ClosureRule<T>

Debug output shows only the stable name (closures are not printable).

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

Formats the value using the given formatter.

impl<T: ?Sized> Rule<T> for ClosureRule<T>

fn name(&self) -> &str

Stable identifier for the rule, used for diagnostics and Debug output only. In v0 it is NOT embedded in issue params and NOT surfaced via shape(); surfacing remains a candidate future contract change. Borrowed from the rule itself so generated names need no 'static interning.

fn validate(&self, value: &T) -> Option<RefineRejection>

Returns rejection data on failure; None on pass.