Struct IdRef

pub struct IdRef { /* private fields */ }

A reference to the State at a given Id within the same transaction context.

Implementations

impl IdRef

pub fn into_id(self) -> Id

pub fn id(&self) -> &Id

Trait Implementations

impl Clone for IdRef

fn clone(&self) -> IdRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for IdRef

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

Formats the value using the given formatter.

impl Display for IdRef

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

Formats the value using the given formatter.

impl From<Id> for IdRef

fn from(to: Id) -> Self

Converts to this type from the input type.

impl From<IdRef> for Id

fn from(r: IdRef) -> Id

Converts to this type from the input type.

impl From<IdRef> for Scalar

fn from(id_ref: IdRef) -> Self

Converts to this type from the input type.

impl From<IdRef> for Subject

fn from(id_ref: IdRef) -> Self

Converts to this type from the input type.

impl From<Label> for IdRef

fn from(to: Label) -> Self

Converts to this type from the input type.

impl FromStr for IdRef

type Err = TCError

The associated error which can be returned from parsing.

fn from_str(to: &str) -> TCResult<Self>

Parses a string s to return a value of this type.

impl FromStream for IdRef

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

where D: 'async_trait + Decoder, Self: 'async_trait, 'life0: 'async_trait,

Parse this value using the given Decoder.

impl GetSize for IdRef

fn get_heap_size(&self) -> usize

Determines how many bytes this object occupies inside the heap.

fn get_stack_size() -> usize

Determines how may bytes this object occupies inside the stack.

fn get_size(&self) -> usize

Determines the total size of the object.

impl<'a, D: Digest> Hash<D> for &'a IdRef

fn hash(self) -> Output<D>

Compute the SHA-2 hash of this value

impl Hash for IdRef

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

Feeds this value into the given Hasher.

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

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'en> IntoStream<'en> for IdRef

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 Ord for IdRef

fn cmp(&self, other: &IdRef) -> Ordering

This method returns an Ordering between self and other.

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

where Self: Sized,

Compares and returns the maximum of two values.

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

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq<Id> for IdRef

fn eq(&self, other: &Id) -> 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 PartialEq for IdRef

fn eq(&self, other: &IdRef) -> 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 PartialOrd for IdRef

fn partial_cmp(&self, other: &IdRef) -> Option<Ordering>

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

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

Tests less than (for self and other) and is used by the < operator.

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

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

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

Tests greater than (for self and other) and is used by the > operator.

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

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

impl<State> Refer<State> for IdRef

where State: StateInstance + Refer<State>,

fn dereference_self(self, path: &TCPathBuf) -> Self

Replace references to “$self” with the given relative path.

fn is_conditional(&self) -> bool

Return true if this is a conditional reference (e.g. If or Case).

fn is_inter_service_write(&self, _cluster_path: &[PathSegment]) -> bool

Return true if this references a write operation to a cluster other than the path given.

fn is_ref(&self) -> bool

Return true if this state is a resolvable reference.

fn reference_self(self, _path: &TCPathBuf) -> Self

Replace the given relative path with “$self”.

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

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

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

where T: 'async_trait + ToState<State> + Public<State> + Instance, Self: 'async_trait, 'a: 'async_trait,

Resolve this reference with respect to the given context.

impl<'en> ToStream<'en> for IdRef

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 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.

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<Value> for IdRef

fn can_cast_from(value: &Value) -> bool

Test if value can be cast into Self.

fn opt_cast_from(value: Value) -> Option<Self>

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

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 Eq for IdRef

impl StructuralPartialEq for IdRef