Struct DatalogCapabilities 

pub struct DatalogCapabilities(/* private fields */);

Language feature set. This describes a contract; it does not certify an engine.

Implementations

impl DatalogCapabilities

pub fn positive() -> Self

Pure positive Datalog over flat terms, with no extension operations.

pub fn with(self, feature: DatalogFeature) -> Self

Declare one additional supported feature.

pub fn contains(&self, feature: &DatalogFeature) -> bool

Inspect one exact feature.

pub fn iter(&self) -> impl Iterator<Item = &DatalogFeature>

Inspect features in stable structural order.

pub fn all_model_features() -> Self

All features representable by this model, without claiming engine support.

Trait Implementations

impl Clone for DatalogCapabilities

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DatalogCapabilities

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

Formats the value using the given formatter.

impl Default for DatalogCapabilities

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for DatalogCapabilities

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for DatalogCapabilities

impl PartialEq for DatalogCapabilities

fn eq(&self, other: &Self) -> bool

Equality operator ==.

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

Inequality operator !=.

impl Serialize for DatalogCapabilities

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DatalogCapabilities