Enum mentat_core::TypedValue

[+] Show type declaration

pub enum TypedValue {
    Ref(Entid),
    Boolean(bool),
    Long(i64),
    Double(OrderedFloat<f64>),
    Instant(DateTime<Utc>),
    String(ValueRc<String>),
    Keyword(ValueRc<Keyword>),
    Uuid(Uuid),
}

[−] Expand description

Represents a value that can be stored in a Mentat store.

Variants

Ref(Entid)Boolean(bool)Long(i64)Double(OrderedFloat<f64>)Instant(DateTime<Utc>)String(ValueRc<String>)Keyword(ValueRc<Keyword>)Uuid(Uuid)

Methods

impl TypedValue

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pub fn is_congruent_with<T: Into<Option<ValueType>>>(&self, t: T) -> bool

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Returns true if the provided type is Some and matches this value's type, or if the provided type is None.

pub fn matches_type(&self, t: ValueType) -> bool

pub fn value_type(&self) -> ValueType

pub fn typed_ns_keyword(ns: &str, name: &str) -> TypedValue

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Construct a new TypedValue::Keyword instance by cloning the provided values and wrapping them in a new ValueRc. This is expensive, so this might be best limited to tests.

pub fn typed_string(s: &str) -> TypedValue

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Construct a new TypedValue::String instance by cloning the provided value and wrapping it in a new ValueRc. This is expensive, so this might be best limited to tests.

pub fn current_instant() -> TypedValue

pub fn instant(micros: i64) -> TypedValue

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Construct a new TypedValue::Instant instance from the provided microsecond timestamp.

impl TypedValue

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pub fn into_known_entid(self) -> Option<KnownEntid>

pub fn into_entid(self) -> Option<Entid>

pub fn into_kw(self) -> Option<ValueRc<Keyword>>

pub fn into_boolean(self) -> Option<bool>

pub fn into_long(self) -> Option<i64>

pub fn into_double(self) -> Option<f64>

pub fn into_instant(self) -> Option<DateTime<Utc>>

pub fn into_timestamp(self) -> Option<i64>

pub fn into_string(self) -> Option<ValueRc<String>>

pub fn into_c_string(self) -> Option<*mut c_char>

pub fn into_kw_c_string(self) -> Option<*mut c_char>

pub fn into_uuid_c_string(self) -> Option<*mut c_char>

pub fn into_uuid(self) -> Option<Uuid>

pub fn into_uuid_string(self) -> Option<String>

Trait Implementations

impl From<KnownEntid> for TypedValue

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fn from(k: KnownEntid) -> TypedValue

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Performs the conversion.

impl Clone for TypedValue

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fn clone(&self) -> TypedValue

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Debug for TypedValue

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fn fmt(&self, __arg_0: &mut Formatter) -> Result

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Formats the value using the given formatter.

impl Eq for TypedValue

impl Hash for TypedValue

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fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

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Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

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Feeds a slice of this type into the given [Hasher].

impl Ord for TypedValue

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fn cmp(&self, __arg_0: &TypedValue) -> Ordering

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This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

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Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

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Compares and returns the minimum of two values.

impl PartialOrd for TypedValue

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fn partial_cmp(&self, __arg_0: &TypedValue) -> Option<Ordering>

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This method returns an ordering between self and other values if one exists.

fn lt(&self, __arg_0: &TypedValue) -> bool

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This method tests less than (for self and other) and is used by the < operator.

fn le(&self, __arg_0: &TypedValue) -> bool

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This method tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, __arg_0: &TypedValue) -> bool

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This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, __arg_0: &TypedValue) -> bool

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This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl PartialEq for TypedValue

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fn eq(&self, __arg_0: &TypedValue) -> bool

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This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &TypedValue) -> bool

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This method tests for !=.

impl From<bool> for TypedValue

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fn from(value: bool) -> TypedValue

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Performs the conversion.

impl From<DateTime<Utc>> for TypedValue

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Truncate the provided DateTime to microsecond precision, and return the corresponding TypedValue::Instant.

fn from(value: DateTime<Utc>) -> TypedValue

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Performs the conversion.

impl From<Uuid> for TypedValue

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fn from(value: Uuid) -> TypedValue

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Performs the conversion.

impl<'a> From<&'a str> for TypedValue

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fn from(value: &'a str) -> TypedValue

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Performs the conversion.

impl From<Arc<String>> for TypedValue

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fn from(value: Arc<String>) -> TypedValue

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Performs the conversion.

impl From<Rc<String>> for TypedValue

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fn from(value: Rc<String>) -> TypedValue

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Performs the conversion.

impl From<Box<String>> for TypedValue

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fn from(value: Box<String>) -> TypedValue

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Performs the conversion.

impl From<String> for TypedValue

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fn from(value: String) -> TypedValue

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Performs the conversion.

impl From<Arc<Keyword>> for TypedValue

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fn from(value: Arc<Keyword>) -> TypedValue

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Performs the conversion.

impl From<Rc<Keyword>> for TypedValue

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fn from(value: Rc<Keyword>) -> TypedValue

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Performs the conversion.

impl From<Keyword> for TypedValue

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fn from(value: Keyword) -> TypedValue

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Performs the conversion.

impl From<u32> for TypedValue

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fn from(value: u32) -> TypedValue

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Performs the conversion.

impl From<i32> for TypedValue

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fn from(value: i32) -> TypedValue

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Performs the conversion.

impl From<f64> for TypedValue

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fn from(value: f64) -> TypedValue

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Performs the conversion.