Struct MemoryCapabilities 

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

What a memory backend can actually do.

A named set rather than a row of flags: capabilities are negotiated with something on the other side of a boundary, and a set survives one side learning a new trick without the other having to be rebuilt to hear about it.

A backend that claims a capability it does not have fails the conformance suite. A backend that claims none is still a legitimate backend, and the honest shape of “no memory configured”.

Implementations

impl MemoryCapabilities

pub fn none() -> Self

A backend that does nothing and says so.

pub fn all() -> Self

pub fn with(self, capability: MemoryCapability) -> Self

pub fn has(&self, capability: MemoryCapability) -> bool

pub fn remembers(&self) -> bool

pub fn recalls(&self) -> bool

pub fn answers_questions(&self) -> bool

pub fn travels_in_time(&self) -> bool

pub fn keeps_evidence(&self) -> bool

pub fn keeps_reasons(&self) -> bool

pub fn follows_reasons(&self) -> bool

pub fn iter(&self) -> impl Iterator<Item = MemoryCapability> + '_

pub fn is_empty(&self) -> bool

Trait Implementations

impl Clone for MemoryCapabilities

fn clone(&self) -> MemoryCapabilities

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MemoryCapabilities

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

Formats the value using the given formatter.

impl Default for MemoryCapabilities

fn default() -> MemoryCapabilities

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for MemoryCapabilities

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for MemoryCapabilities

impl PartialEq for MemoryCapabilities

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for MemoryCapabilities

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 MemoryCapabilities