Enum tinychain::scalar::Scalar

pub enum Scalar {
    Map(Map<Self>),
    Op(OpDef),
    Range(Range),
    Ref(Box<TCRef>),
    Tuple(Tuple<Self>),
    Value(Value),
}

A scalar value, i.e. one which is always held in main memory and never split into blocks.

Variants

Map(Map<Self>)

Op(OpDef)

Range(Range)

Ref(Box<TCRef>)

Tuple(Tuple<Self>)

Value(Value)

Implementations

impl Scalar

pub fn is_none(&self) -> bool

Return true if self is an empty tuple, default link, or Value::None.

pub fn is_ref(&self) -> bool

Return true if self is a reference type which needs to be resolved.

pub fn into_type(self, class: ScalarType) -> Option<Self>

Cast this Scalar into the specified ScalarType, if possible.

Trait Implementations

impl Clone for Scalar

fn clone(&self) -> Scalar

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Default for Scalar

fn default() -> Self

Returns the “default value” for a type.

impl Display for Scalar

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

Formats the value using the given formatter.

impl Eq for Scalar

impl From<Link> for Scalar

fn from(link: Link) -> Self

Performs the conversion.

impl From<Map<Scalar>> for Scalar

fn from(map: Map<Scalar>) -> Self

Performs the conversion.

impl From<Range> for Scalar

fn from(range: Range) -> Self

Performs the conversion.

impl From<Scalar> for State

fn from(scalar: Scalar) -> State

Performs the conversion.

impl From<TCRef> for Scalar

fn from(tc_ref: TCRef) -> Self

Performs the conversion.

impl From<Tuple<Scalar>> for Scalar

fn from(tuple: Tuple<Scalar>) -> Self

Performs the conversion.

impl From<Tuple<Value>> for Scalar

fn from(tuple: Tuple<Value>) -> Self

Performs the conversion.

impl From<Value> for Scalar

fn from(value: Value) -> Self

Performs the conversion.

impl From<u64> for Scalar

fn from(n: u64) -> Self

Performs the conversion.

impl FromStream for Scalar

type Context = ()

The decoding context of this type, useful in situations where the stream to be decoded may be too large to hold in main memory.

fn from_stream<'life0, 'async_trait, D: Decoder>(
    __arg0: (),
    d: &'life0 mut D
) -> Pin<Box<dyn Future<Output = Result<Self, D::Error>> + Send + 'async_trait>> where
    D: 'async_trait,
    'life0: 'async_trait,
    Self: 'async_trait, 

Parse this value using the given Decoder.

impl Instance for Scalar

type Class = ScalarType

The Class type of this instance

fn class(&self) -> ScalarType

Returns the [Class] of this instance.

impl<'en> IntoStream<'en> for Scalar

fn into_stream<E: Encoder<'en>>(self, e: E) -> Result<E::Ok, E::Error>

Take ownership of this value and serialize it into the given encoder.

impl PartialEq<Scalar> for Scalar

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

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

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

This method tests for !=.

impl Refer for Scalar

fn requires(&self, deps: &mut HashSet<Id>)

Add the dependency Ids of this reference to the given set.

fn resolve<'a, 'async_trait, T: Instance + Public>(
    self,
    context: &'a Scope<'a, T>,
    txn: &'a Txn
) -> Pin<Box<dyn Future<Output = TCResult<State>> + Send + 'async_trait>> where
    'a: 'async_trait,
    T: 'async_trait,
    Self: 'async_trait, 

Resolve this reference with respect to the given context.

impl StructuralEq for Scalar

impl StructuralPartialEq for Scalar

impl<'en> ToStream<'en> for Scalar

fn to_stream<E: Encoder<'en>>(&'en self, e: E) -> Result<E::Ok, E::Error>

Serialize this value into the given encoder.

impl TryCastFrom<Scalar> for After

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for Case

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for Number

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl<T: Clone + TryCastFrom<Scalar>> TryCastFrom<Scalar> for Map<T>

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for Value

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for OpRef

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for IfRef

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for Subject

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for OpDef

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for Bound

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for Range

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for TCRef

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for IdRef

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<Scalar> for Link

fn can_cast_from(scalar: &Scalar) -> bool

Test if value can be cast into Self.

fn opt_cast_from(scalar: Scalar) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryCastFrom<State> for Scalar

fn can_cast_from(state: &State) -> bool

Test if value can be cast into Self.

fn opt_cast_from(state: State) -> Option<Self>

Returns Some(Self) if the source value can be cast into Self, otherwise None.

pub fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
    OnErr: FnOnce(&T) -> Err, 

Returns Ok(Self) if the source value can be cast into Self, otherwise calls on_err.

impl TryFrom<Scalar> for Map<Scalar>

type Error = TCError

The type returned in the event of a conversion error.

fn try_from(scalar: Scalar) -> TCResult<Map<Scalar>>

Performs the conversion.

impl TryFrom<Scalar> for Range

type Error = TCError

The type returned in the event of a conversion error.

fn try_from(scalar: Scalar) -> TCResult<Range>

Performs the conversion.

impl TryFrom<Scalar> for Value

type Error = TCError

The type returned in the event of a conversion error.

fn try_from(scalar: Scalar) -> TCResult<Value>

Performs the conversion.