Enum Combiner 

#[non_exhaustive]
pub enum Combiner {
    AllOf(Vec<Predicate>),
    AnyOf(Vec<Predicate>),
    NoneOf(Vec<Predicate>),
}

The one-of combiner declared at the top level of a require or when block. Exactly one variant is populated at parse time.

Marked #[non_exhaustive] so new combiner shapes (e.g. xor_of, majority_of) can land without breaking external match sites.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

AllOf(Vec<Predicate>)

all_of: — every predicate must hold (AND).

AnyOf(Vec<Predicate>)

any_of: — at least one predicate must hold (OR).

NoneOf(Vec<Predicate>)

none_of: — no predicate may hold (NOR).

Implementations

impl Combiner

pub fn from_mapping( mapping: &Mapping, depth: usize, ) -> Result<Self, PackParseError>

Parse a combiner from a YAML mapping. Caller is responsible for handing down only the subset of keys relevant to combiner selection (typically the full mapping; non-combiner keys are ignored by this fn).

Exactly one of all_of / any_of / none_of must be present.

Trait Implementations

impl Clone for Combiner

fn clone(&self) -> Combiner

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Combiner

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

Formats the value using the given formatter.

impl PartialEq for Combiner

fn eq(&self, other: &Combiner) -> 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 Serialize for Combiner

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for Combiner

impl StructuralPartialEq for Combiner