Enum tinychain::state::State

source · [−]

pub enum State {
    Collection(Collection),
    Chain(Chain),
    Closure(Closure),
    Map(Map<Self>),
    Object(Object),
    Scalar(Scalar),
    Stream(TCStream),
    Tuple(Tuple<Self>),
}

Expand description

An addressable state with a discrete value per-transaction.

Variants

`Collection(Collection)`

`Chain(Chain)`

`Closure(Closure)`

`Map(Map<Self>)`

`Object(Object)`

`Scalar(Scalar)`

`Stream(TCStream)`

`Tuple(Tuple<Self>)`

Implementations

impl State

pub fn hash<'a>(self, txn: Txn) -> TCBoxTryFuture<'a, Output<Sha256>>

Compute the SHA256 hash of this State.

pub fn is_none(&self) -> bool

Return true if this State is an empty Tuple or Map, default Link, or Value::None

pub fn is_map(&self) -> bool

Return true if this State variant is a Map.

pub fn is_some(&self) -> bool

Return false if this State is an empty Tuple or Map, default Link, or Value::None

pub fn is_tuple(&self) -> bool

Return true if this State variant is a Tuple.

pub fn is_ref(&self) -> bool

Return true if this State is a reference that needs to be resolved.

pub fn try_into_map<Err: Fn(State) -> TCError>(
self,
err: Err
) -> TCResult<Map<State>>

Return this State as a Map of States, or an error if this is not possible.

pub fn try_into_tuple<Err: Fn(State) -> TCError>(
self,
err: Err
) -> TCResult<Tuple<State>>

Trait Implementations

impl<T1, T2, T3, T4> CastFrom<(T1, T2, T3, T4)> for State where
    State: CastFrom<T1>,
    State: CastFrom<T2>,
    State: CastFrom<T3>,
    State: CastFrom<T4>,

fn cast_from(value: (T1, T2, T3, T4)) -> Self

Cast an instance of T into an instance of Self.

impl<T1, T2, T3> CastFrom<(T1, T2, T3)> for State where
    State: CastFrom<T1>,
    State: CastFrom<T2>,
    State: CastFrom<T3>,

fn cast_from(value: (T1, T2, T3)) -> Self

Cast an instance of T into an instance of Self.

impl<T1, T2> CastFrom<(T1, T2)> for State where
State: CastFrom<T1>,
State: CastFrom<T2>,

fn cast_from(value: (T1, T2)) -> Self

Cast an instance of T into an instance of Self.

impl<T1> CastFrom<(T1,)> for State where
State: CastFrom<T1>,

fn cast_from(value: (T1,)) -> Self

Cast an instance of T into an instance of Self.

impl Clone for State

fn clone(&self) -> State

Returns a copy of the value. Read more

1.0.0 · source

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

Performs copy-assignment from source. Read more

impl Debug for State

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

Formats the value using the given formatter. Read more

impl Default for State

fn default() -> Self

Returns the “default value” for a type. Read more

impl Display for State

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

Formats the value using the given formatter. Read more

impl From<()> for State

fn from(_: ()) -> State

Converts to this type from the input type.

impl From<BTree<File<Node>, Dir, Txn>> for State

fn from(btree: BTree) -> Self

Converts to this type from the input type.

impl From<Box<TCRef, Global>> for State

fn from(tc_ref: Box<TCRef>) -> Self

Converts to this type from the input type.

impl From<Chain> for State

fn from(chain: Chain) -> Self

Converts to this type from the input type.

impl From<Closure> for State

fn from(closure: Closure) -> Self

Converts to this type from the input type.

impl From<Collection> for State

fn from(collection: Collection) -> Self

Converts to this type from the input type.

impl From<Link> for State

fn from(link: Link) -> Self

Converts to this type from the input type.

impl From<Map<Scalar>> for State

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

Converts to this type from the input type.

impl From<Map<State>> for State

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

Converts to this type from the input type.

impl From<Number> for State

fn from(n: Number) -> Self

Converts to this type from the input type.

impl From<Object> for State

fn from(object: Object) -> Self

Converts to this type from the input type.

impl From<OpDef> for State

fn from(op_def: OpDef) -> Self

Converts to this type from the input type.

impl From<OpRef> for State

fn from(op_ref: OpRef) -> Self

Converts to this type from the input type.

impl<T> From<Option<T>> for State where
State: From<T>,

fn from(state: Option<T>) -> Self

Converts to this type from the input type.

impl From<Scalar> for State

fn from(scalar: Scalar) -> Self

Converts to this type from the input type.

impl From<TCRef> for State

fn from(tc_ref: TCRef) -> Self

Converts to this type from the input type.

impl From<TCStream> for State

fn from(stream: TCStream) -> Self

Converts to this type from the input type.

impl From<Table<File<Node>, Dir, Txn>> for State

fn from(table: Table) -> Self

Converts to this type from the input type.

impl From<Tuple<Scalar>> for State

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

Converts to this type from the input type.

impl From<Tuple<State>> for State

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

Converts to this type from the input type.

impl From<Tuple<Value>> for State

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

Converts to this type from the input type.

impl From<Value> for State

fn from(value: Value) -> Self

Converts to this type from the input type.

impl From<bool> for State

fn from(b: bool) -> Self

Converts to this type from the input type.

impl From<i64> for State

fn from(n: i64) -> Self

Converts to this type from the input type.

impl From<u64> for State

fn from(n: u64) -> Self

Converts to this type from the input type.

impl From<usize> for State

fn from(n: usize) -> Self

Converts to this type from the input type.

impl FromStream for State

type Context = Txn

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

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

Parse this value using the given Decoder.

impl Instance for State

type Class = StateType

The Class type of this instance

fn class(&self) -> StateType

Returns the [Class] of this instance.

impl<'en> IntoView<'en, Dir> for State

type Txn = Txn

type View = StateView<'en>

fn into_view<'async_trait>(
    self,
    txn: Self::Txn
) -> Pin<Box<dyn Future<Output = TCResult<Self::View>> + Send + 'async_trait>> where
    Self: 'async_trait,

Return a View which can be encoded with en::IntoStream.

impl Refer for State

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

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

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 reference_self(self, path: &TCPathBuf) -> Self

Replace the given relative path with “$self”. Read more

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

Add the dependency [Id]s of this reference to the given set.

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

Resolve this reference with respect to the given context.

impl TryCastFrom<State> for bool

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.

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 Bytes

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.

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: TryCastFrom<State>> TryCastFrom<State> for Tuple<T>

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.

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 Id

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.

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 IdRef

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.

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 Link

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.

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 InstanceClass

fn can_cast_from(state: &State) -> bool

Test if value can be cast into Self.

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

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<State> for OpDef

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.

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 OpRef

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.

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.

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 TCPathBuf

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.

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 Value

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.

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 Closure

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.

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 Float

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.

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 Number

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.

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 u64

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.

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 TCString

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.

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<State>> TryCastFrom<State> for Map<T>

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.

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 TCStream

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.

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: TryCastFrom<State>> TryCastFrom<State> for (T,)

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.

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<T1: TryCastFrom<State>, T2: TryCastFrom<State>> TryCastFrom<State> for (T1, T2)

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.

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<T1: TryCastFrom<State>, T2: TryCastFrom<State>, T3: TryCastFrom<State>> TryCastFrom<State> for (T1, T2, T3)

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.

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: TryCastFrom<State>> TryCastFrom<State> for Vec<T>

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.

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<State> for Collection

type Error = TCError

The type returned in the event of a conversion error.

fn try_from(state: State) -> TCResult<Collection>

Performs the conversion.

impl TryFrom<State> for Map<State>

type Error = TCError

The type returned in the event of a conversion error.

fn try_from(state: State) -> TCResult<Map<State>>

Performs the conversion.

impl TryFrom<State> for Value

type Error = TCError

The type returned in the event of a conversion error.

fn try_from(state: State) -> TCResult<Value>

Performs the conversion.

Auto Trait Implementations

impl !RefUnwindSafe for State

impl Send for State

impl Sync for State

impl Unpin for State

impl !UnwindSafe for State

Blanket Implementations

impl<T> Any for T where
T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<F, T> CastFrom<F> for T where
T: From<F>,

fn cast_from(f: F) -> T

Cast an instance of T into an instance of Self.

impl<T, F> CastInto<F> for T where
F: CastFrom<T>,

fn cast_into(self) -> F

Cast an instance of Self into an instance of T.

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<F> Match for F

fn matches<T>(&self) -> bool where
T: TryCastFrom<Self>,

Returns true if self can be cast into the target type T.

impl<T> Same<T> for T

type Output = T

Should always be Self

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToState for T where
T: Clone,
State: From<T>,

fn to_state(&self) -> State

impl<T> ToString for T where
T: Display + ?Sized,

default fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<F, T> TryCastFrom<F> for T where
T: CastFrom<F>,

fn can_cast_from(&F) -> bool

Test if value can be cast into Self.

fn opt_cast_from(f: F) -> Option<T>

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<F, T> TryCastInto<T> for F where
T: TryCastFrom<F>,

fn can_cast_into(&self) -> bool

Test if self can be cast into T.

fn opt_cast_into(self) -> Option<T>

Returns Some(T) if self can be cast into T, otherwise None.

fn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err> where
OnErr: FnOnce(&Self) -> Err,

Returns Ok(T) if self can be cast into T, otherwise calls on_err.

impl<T, U> TryFrom<U> for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<V, T> VZip<V> for T where
V: MultiLane<T>,

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more